diff options
332 files changed, 19208 insertions, 4584 deletions
diff --git a/.gitattributes b/.gitattributes index 8ce9c6b888..1bdc91e282 100644 --- a/.gitattributes +++ b/.gitattributes @@ -1,8 +1,10 @@ * whitespace=!indent,trail,space *.[ch] whitespace=indent,trail,space diff=cpp *.sh whitespace=indent,trail,space eol=lf -*.perl eol=lf -*.pm eol=lf +*.perl eol=lf diff=perl +*.pl eof=lf diff=perl +*.pm eol=lf diff=perl +*.py eol=lf diff=python /Documentation/git-*.txt eol=lf /command-list.txt eol=lf /GIT-VERSION-GEN eol=lf diff --git a/.gitignore b/.gitignore index 833ef3b0b7..b2a1ae4a1d 100644 --- a/.gitignore +++ b/.gitignore @@ -3,6 +3,7 @@ /GIT-LDFLAGS /GIT-PREFIX /GIT-PERL-DEFINES +/GIT-PERL-HEADER /GIT-PYTHON-VARS /GIT-SCRIPT-DEFINES /GIT-USER-AGENT @@ -34,6 +35,7 @@ /git-clone /git-column /git-commit +/git-commit-graph /git-commit-tree /git-config /git-count-objects @@ -140,6 +142,7 @@ /git-rm /git-send-email /git-send-pack +/git-serve /git-sh-i18n /git-sh-i18n--envsubst /git-sh-setup @@ -25,8 +25,8 @@ Ben Walton <bdwalton@gmail.com> <bwalton@artsci.utoronto.ca> Benoit Sigoure <tsunanet@gmail.com> <tsuna@lrde.epita.fr> Bernt Hansen <bernt@norang.ca> <bernt@alumni.uwaterloo.ca> Brandon Casey <drafnel@gmail.com> <casey@nrlssc.navy.mil> -brian m. carlson <sandals@crustytoothpaste.ath.cx> Brian M. Carlson <sandals@crustytoothpaste.ath.cx> -brian m. carlson <sandals@crustytoothpaste.ath.cx> <sandals@crustytoothpaste.net> +brian m. carlson <sandals@crustytoothpaste.net> Brian M. Carlson <sandals@crustytoothpaste.ath.cx> +brian m. carlson <sandals@crustytoothpaste.net> <sandals@crustytoothpaste.ath.cx> Bryan Larsen <bryan@larsen.st> <bryan.larsen@gmail.com> Bryan Larsen <bryan@larsen.st> <bryanlarsen@yahoo.com> Cheng Renquan <crquan@gmail.com> diff --git a/Documentation/Makefile b/Documentation/Makefile index 6232143cb9..d079d7c73a 100644 --- a/Documentation/Makefile +++ b/Documentation/Makefile @@ -78,6 +78,7 @@ TECH_DOCS += technical/pack-heuristics TECH_DOCS += technical/pack-protocol TECH_DOCS += technical/protocol-capabilities TECH_DOCS += technical/protocol-common +TECH_DOCS += technical/protocol-v2 TECH_DOCS += technical/racy-git TECH_DOCS += technical/send-pack-pipeline TECH_DOCS += technical/shallow @@ -184,7 +185,7 @@ ASCIIDOC = asciidoctor ASCIIDOC_CONF = ASCIIDOC_HTML = xhtml5 ASCIIDOC_DOCBOOK = docbook45 -ASCIIDOC_EXTRA += -acompat-mode +ASCIIDOC_EXTRA += -acompat-mode -atabsize=8 ASCIIDOC_EXTRA += -I. -rasciidoctor-extensions ASCIIDOC_EXTRA += -alitdd='&\#x2d;&\#x2d;' DBLATEX_COMMON = diff --git a/Documentation/RelNotes/2.13.7.txt b/Documentation/RelNotes/2.13.7.txt new file mode 100644 index 0000000000..09fc01406c --- /dev/null +++ b/Documentation/RelNotes/2.13.7.txt @@ -0,0 +1,20 @@ +Git v2.13.7 Release Notes +========================= + +Fixes since v2.13.6 +------------------- + + * Submodule "names" come from the untrusted .gitmodules file, but we + blindly append them to $GIT_DIR/modules to create our on-disk repo + paths. This means you can do bad things by putting "../" into the + name. We now enforce some rules for submodule names which will cause + Git to ignore these malicious names (CVE-2018-11235). + + Credit for finding this vulnerability and the proof of concept from + which the test script was adapted goes to Etienne Stalmans. + + * It was possible to trick the code that sanity-checks paths on NTFS + into reading random piece of memory (CVE-2018-11233). + +Credit for fixing for these bugs goes to Jeff King, Johannes +Schindelin and others. diff --git a/Documentation/RelNotes/2.14.4.txt b/Documentation/RelNotes/2.14.4.txt new file mode 100644 index 0000000000..97755a89d9 --- /dev/null +++ b/Documentation/RelNotes/2.14.4.txt @@ -0,0 +1,5 @@ +Git v2.14.4 Release Notes +========================= + +This release is to forward-port the fixes made in the v2.13.7 version +of Git. See its release notes for details. diff --git a/Documentation/RelNotes/2.15.2.txt b/Documentation/RelNotes/2.15.2.txt index 9f7e28f8a2..b480e56b68 100644 --- a/Documentation/RelNotes/2.15.2.txt +++ b/Documentation/RelNotes/2.15.2.txt @@ -43,5 +43,8 @@ Fixes since v2.15.1 * Clarify and enhance documentation for "merge-base --fork-point", as it was clear what it computed but not why/what for. + * This release also contains the fixes made in the v2.13.7 version of + Git. See its release notes for details. + Also contains various documentation updates and code clean-ups. diff --git a/Documentation/RelNotes/2.16.4.txt b/Documentation/RelNotes/2.16.4.txt new file mode 100644 index 0000000000..6be538ba30 --- /dev/null +++ b/Documentation/RelNotes/2.16.4.txt @@ -0,0 +1,5 @@ +Git v2.16.4 Release Notes +========================= + +This release is to forward-port the fixes made in the v2.13.7 version +of Git. See its release notes for details. diff --git a/Documentation/RelNotes/2.17.1.txt b/Documentation/RelNotes/2.17.1.txt new file mode 100644 index 0000000000..e01384fe8e --- /dev/null +++ b/Documentation/RelNotes/2.17.1.txt @@ -0,0 +1,16 @@ +Git v2.17.1 Release Notes +========================= + +Fixes since v2.17 +----------------- + + * This release contains the same fixes made in the v2.13.7 version of + Git, covering CVE-2018-11233 and 11235, and forward-ported to + v2.14.4, v2.15.2 and v2.16.4 releases. See release notes to + v2.13.7 for details. + + * In addition to the above fixes, this release has support on the + server side to reject pushes to repositories that attempt to create + such problematic .gitmodules file etc. as tracked contents, to help + hosting sites protect their customers by preventing malicious + contents from spreading. diff --git a/Documentation/RelNotes/2.18.0.txt b/Documentation/RelNotes/2.18.0.txt index 31c3f6d670..40c3b9470b 100644 --- a/Documentation/RelNotes/2.18.0.txt +++ b/Documentation/RelNotes/2.18.0.txt @@ -44,6 +44,66 @@ UI, Workflows & Features * "git mergetools" learned talking to guiffy. + * The scripts in contrib/emacs/ have outlived their usefulness and + have been replaced with a stub that errors out and tells the user + there are replacements. + + * The new "checkout-encoding" attribute can ask Git to convert the + contents to the specified encoding when checking out to the working + tree (and the other way around when checking in). + + * The "git config" command uses separate options e.g. "--int", + "--bool", etc. to specify what type the caller wants the value to + be interpreted as. A new "--type=<typename>" option has been + introduced, which would make it cleaner to define new types. + + * "git config --get" learned the "--default" option, to help the + calling script. Building on top of the above changes, the + "git config" learns "--type=color" type. Taken together, you can + do things like "git config --get foo.color --default blue" and get + the ANSI color sequence for the color given to foo.color variable, + or "blue" if the variable does not exist. + + * "git ls-remote" learned an option to allow sorting its output based + on the refnames being shown. + + * The command line completion (in contrib/) has been taught that "git + stash save" has been deprecated ("git stash push" is the preferred + spelling in the new world) and does not offer it as a possible + completion candidate when "git stash push" can be. + + * "git gc --prune=nonsense" spent long time repacking and then + silently failed when underlying "git prune --expire=nonsense" + failed to parse its command line. This has been corrected. + + * Error messages from "git push" can be painted for more visibility. + + * "git http-fetch" (deprecated) had an optional and experimental + "feature" to fetch only commits and/or trees, which nobody used. + This has been removed. + + * The functionality of "$GIT_DIR/info/grafts" has been superseded by + the "refs/replace/" mechanism for some time now, but the internal + code had support for it in many places, which has been cleaned up + in order to drop support of the "grafts" mechanism. + + * "git worktree add" learned to check out an existing branch. + + * "git --no-pager cmd" did not have short-and-sweet single letter + option. Now it does as "-P". + (merge 7213c28818 js/no-pager-shorthand later to maint). + + * "git rebase" learned "--rebase-merges" to transplant the whole + topology of commit graph elsewhere. + + * "git status" learned to pay attention to UI related diff + configuration variables such as diff.renames. + + * The command line completion mechanism (in contrib/) learned to load + custom completion file for "git $command" where $command is a + custom "git-$command" that the end user has on the $PATH when using + newer version of bash. + Performance, Internal Implementation, Development Support etc. @@ -118,6 +178,61 @@ Performance, Internal Implementation, Development Support etc. fast-import.c, which in turn has become the first user of the mem-pool API. + * A build-time option has been added to allow Git to be told to refer + to its associated files relative to the main binary, in the same + way that has been possible on Windows for quite some time, for + Linux, BSDs and Darwin. + + * Precompute and store information necessary for ancestry traversal + in a separate file to optimize graph walking. + + * The effort to pass the repository in-core structure throughout the + API continues. This round deals with the code that implements the + refs/replace/ mechanism. + + * The build procedure "make DEVELOPER=YesPlease" learned to enable a + bit more warning options depending on the compiler used to help + developers more. There also is "make DEVOPTS=tokens" knob + available now, for those who want to help fixing warnings we + usually ignore, for example. + + * A new version of the transport protocol is being worked on. + + * The code to interface to GPG has been restructured somewhat to make + it cleaner to integrate with other types of signature systems later. + + * The code has been taught to use the duplicated information stored + in the commit-graph file to learn the tree object name for a commit + to avoid opening and parsing the commit object when it makes sense + to do so. + + * "git gc" in a large repository takes a lot of time as it considers + to repack all objects into one pack by default. The command has + been taught to pretend as if the largest existing packfile is + marked with ".keep" so that it is left untouched while objects in + other packs and loose ones are repacked. + + * The transport protocol v2 is getting updated further. + + * The codepath around object-info API has been taught to take the + repository object (which in turn tells the API which object store + the objects are to be located). + + * Rename detection logic in "diff" family that is used in "merge" has + learned to guess when all of x/a, x/b and x/c have moved to z/a, + z/b and z/c, it is likely that x/d added in the meantime would also + want to move to z/d by taking the hint that the entire directory + 'x' moved to 'z'. A bug causing dirty files involved in a rename + to be overwritten during merge has also been fixed as part of this + work. Incidentally, this also avoids updating a file in the + working tree after a (non-trivial) merge whose result matches what + our side originally had. + + * "git pack-objects" needs to allocate tons of "struct object_entry" + while doing its work, and shrinking its size helps the performance + quite a bit. + + Also contains various documentation updates and code clean-ups. @@ -183,6 +298,90 @@ Fixes since v2.17 attacker's control) buffer overflow. (merge d8579accfa bp/fsmonitor-bufsize-fix later to maint). + * Recent simplification of build procedure forgot a bit of tweak to + the build procedure of contrib/mw-to-git/ + (merge d8698987f3 ab/simplify-perl-makefile later to maint). + + * Moving a submodule that itself has submodule in it with "git mv" + forgot to make necessary adjustment to the nested sub-submodules; + now the codepath learned to recurse into the submodules. + + * "git config --unset a.b", when "a.b" is the last variable in an + otherwise empty section "a", left an empty section "a" behind, and + worse yet, a subsequent "git config a.c value" did not reuse that + empty shell and instead created a new one. These have been + (partially) corrected. + (merge c71d8bb38a js/empty-config-section-fix later to maint). + + * "git worktree remove" learned that "-f" is a shorthand for + "--force" option, just like for "git worktree add". + (merge d228eea514 sb/worktree-remove-opt-force later to maint). + + * The completion script (in contrib/) learned to clear cached list of + command line options upon dot-sourcing it again in a more efficient + way. + (merge 94408dc71c sg/completion-clear-cached later to maint). + + * "git svn" had a minor thinko/typo which has been fixed. + (merge 51db271587 ab/git-svn-get-record-typofix later to maint). + + * During a "rebase -i" session, the code could give older timestamp + to commits created by later "pick" than an earlier "reword", which + has been corrected. + (merge 12f7babd6b js/ident-date-fix later to maint). + + * "git submodule status" did not check the symbolic revision name it + computed for the submodule HEAD is not the NULL, and threw it at + printf routines, which has been corrected. + (merge 0b5e2ea7cf nd/submodule-status-fix later to maint). + + * When fed input that already has In-Reply-To: and/or References: + headers and told to add the same information, "git send-email" + added these headers separately, instead of appending to an existing + one, which is a violation of the RFC. This has been corrected. + (merge 256be1d3f0 sa/send-email-dedup-some-headers later to maint). + + * "git fast-export" had a regression in v2.15.0 era where it skipped + some merge commits in certain cases, which has been corrected. + (merge be011bbe00 ma/fast-export-skip-merge-fix later to maint). + + * The code did not propagate the terminal width to subprocesses via + COLUMNS environment variable, which it now does. This caused + trouble to "git column" helper subprocess when "git tag --column=row" + tried to list the existing tags on a display with non-default width. + (merge b5d5a567fb nd/term-columns later to maint). + + * We learned that our source files with ".pl" and ".py" extensions + are Perl and Python files respectively and changes to them are + better viewed as such with appropriate diff drivers. + (merge 7818b619e2 ab/perl-python-attrs later to maint). + + * "git rebase -i" sometimes left intermediate "# This is a + combination of N commits" message meant for the human consumption + inside an editor in the final result in certain corner cases, which + has been fixed. + (merge 15ef69314d js/rebase-i-clean-msg-after-fixup-continue later to maint). + + * A test to see if the filesystem normalizes UTF-8 filename has been + updated to check what we need to know in a more direct way, i.e. a + path created in NFC form can be accessed with NFD form (or vice + versa) to cope with APFS as well as HFS. + (merge 742ae10e35 tb/test-apfs-utf8-normalization later to maint). + + * "git format-patch --cover --attach" created a broken MIME multipart + message for the cover letter, which has been fixed by keeping the + cover letter as plain text file. + (merge 50cd54ef4e bc/format-patch-cover-no-attach later to maint). + + * The split-index feature had a long-standing and dormant bug in + certain use of the in-core merge machinery, which has been fixed. + (merge 7db118303a en/unpack-trees-split-index-fix later to maint). + + * Asciidoctor gives a reasonable imitation for AsciiDoc, but does not + render illustration in a literal block correctly when indented with + HT by default. The problem is fixed by forcing 8-space tabs. + (merge 379805051d bc/asciidoctor-tab-width later to maint). + * Other minor doc, test and build updates and code cleanups. (merge 248f66ed8e nd/trace-with-env later to maint). (merge 14ced5562c ys/bisect-object-id-missing-conversion-fix later to maint). @@ -198,3 +397,17 @@ Fixes since v2.17 (merge decf711fc1 ps/test-chmtime-get later to maint). (merge 22d11a6e8e es/worktree-docs later to maint). (merge 92a5dbbc22 tg/use-git-contacts later to maint). + (merge adc887221f tq/t1510 later to maint). + (merge bed21a8ad6 sg/doc-gc-quote-mismatch-fix later to maint). + (merge 73364e4f10 tz/doc-git-urls-reference later to maint). + (merge cd1e606bad bc/mailmap-self later to maint). + (merge f7997e3682 ao/config-api-doc later to maint). + (merge ee930754d8 jk/apply-p-doc later to maint). + (merge 011b648646 nd/pack-format-doc later to maint). + (merge 87a6bb701a sg/t5310-jgit-bitmap-test later to maint). + (merge f6b82970aa sg/t5516-fixes later to maint). + (merge 4362da078e sg/t7005-spaces-in-filenames-cleanup later to maint). + (merge 7d0ee47c11 js/test-unset-prereq later to maint). + (merge 5356a3c354 ah/misc-doc-updates later to maint). + (merge 92c4a7a129 nd/completion-aliasfiletype-typofix later to maint). + (merge 58bd77b66a nd/pack-unreachable-objects-doc later to maint). diff --git a/Documentation/config.txt b/Documentation/config.txt index 2659153cb3..84e2891aed 100644 --- a/Documentation/config.txt +++ b/Documentation/config.txt @@ -530,6 +530,12 @@ core.autocrlf:: This variable can be set to 'input', in which case no output conversion is performed. +core.checkRoundtripEncoding:: + A comma and/or whitespace separated list of encodings that Git + performs UTF-8 round trip checks on if they are used in an + `working-tree-encoding` attribute (see linkgit:gitattributes[5]). + The default value is `SHIFT-JIS`. + core.symlinks:: If false, symbolic links are checked out as small plain files that contain the link text. linkgit:git-update-index[1] and @@ -898,6 +904,10 @@ core.notesRef:: This setting defaults to "refs/notes/commits", and it can be overridden by the `GIT_NOTES_REF` environment variable. See linkgit:git-notes[1]. +core.commitGraph:: + Enable git commit graph feature. Allows reading from the + commit-graph file. + core.sparseCheckout:: Enable "sparse checkout" feature. See section "Sparse checkout" in linkgit:git-read-tree[1] for more information. @@ -1058,6 +1068,10 @@ branch.<name>.rebase:: "git pull" is run. See "pull.rebase" for doing this in a non branch-specific manner. + +When `merges`, pass the `--rebase-merges` option to 'git rebase' +so that the local merge commits are included in the rebase (see +linkgit:git-rebase[1] for details). ++ When preserve, also pass `--preserve-merges` along to 'git rebase' so that locally committed merge commits will not be flattened by running 'git pull'. @@ -1088,6 +1102,16 @@ clean.requireForce:: A boolean to make git-clean do nothing unless given -f, -i or -n. Defaults to true. +color.advice:: + A boolean to enable/disable color in hints (e.g. when a push + failed, see `advice.*` for a list). May be set to `always`, + `false` (or `never`) or `auto` (or `true`), in which case colors + are used only when the error output goes to a terminal. If + unset, then the value of `color.ui` is used (`auto` by default). + +color.advice.hint:: + Use customized color for hints. + color.branch:: A boolean to enable/disable color in the output of linkgit:git-branch[1]. May be set to `always`, @@ -1190,6 +1214,15 @@ color.pager:: A boolean to enable/disable colored output when the pager is in use (default is true). +color.push:: + A boolean to enable/disable color in push errors. May be set to + `always`, `false` (or `never`) or `auto` (or `true`), in which + case colors are used only when the error output goes to a terminal. + If unset, then the value of `color.ui` is used (`auto` by default). + +color.push.error:: + Use customized color for push errors. + color.showBranch:: A boolean to enable/disable color in the output of linkgit:git-show-branch[1]. May be set to `always`, @@ -1218,6 +1251,15 @@ color.status.<slot>:: status short-format), or `unmerged` (files which have unmerged changes). +color.transport:: + A boolean to enable/disable color when pushes are rejected. May be + set to `always`, `false` (or `never`) or `auto` (or `true`), in which + case colors are used only when the error output goes to a terminal. + If unset, then the value of `color.ui` is used (`auto` by default). + +color.transport.rejected:: + Use customized color when a push was rejected. + color.ui:: This variable determines the default value for variables such as `color.diff` and `color.grep` that control the use of color @@ -1558,6 +1600,18 @@ gc.autoDetach:: Make `git gc --auto` return immediately and run in background if the system supports it. Default is true. +gc.bigPackThreshold:: + If non-zero, all packs larger than this limit are kept when + `git gc` is run. This is very similar to `--keep-base-pack` + except that all packs that meet the threshold are kept, not + just the base pack. Defaults to zero. Common unit suffixes of + 'k', 'm', or 'g' are supported. ++ +Note that if the number of kept packs is more than gc.autoPackLimit, +this configuration variable is ignored, all packs except the base pack +will be repacked. After this the number of packs should go below +gc.autoPackLimit and gc.bigPackThreshold should be respected again. + gc.logExpiry:: If the file gc.log exists, then `git gc --auto` won't run unless that file is more than 'gc.logExpiry' old. Default is @@ -2422,6 +2476,7 @@ pack.window:: pack.depth:: The maximum delta depth used by linkgit:git-pack-objects[1] when no maximum depth is given on the command line. Defaults to 50. + Maximum value is 4095. pack.windowMemory:: The maximum size of memory that is consumed by each thread @@ -2458,7 +2513,8 @@ pack.deltaCacheLimit:: The maximum size of a delta, that is cached in linkgit:git-pack-objects[1]. This cache is used to speed up the writing object phase by not having to recompute the final delta - result once the best match for all objects is found. Defaults to 1000. + result once the best match for all objects is found. + Defaults to 1000. Maximum value is 65535. pack.threads:: Specifies the number of threads to spawn when searching for best @@ -2617,6 +2673,10 @@ pull.rebase:: pull" is run. See "branch.<name>.rebase" for setting this on a per-branch basis. + +When `merges`, pass the `--rebase-merges` option to 'git rebase' +so that the local merge commits are included in the rebase (see +linkgit:git-rebase[1] for details). ++ When preserve, also pass `--preserve-merges` along to 'git rebase' so that locally committed merge commits will not be flattened by running 'git pull'. diff --git a/Documentation/diff-config.txt b/Documentation/diff-config.txt index 5ca942ab5e..77caa66c2f 100644 --- a/Documentation/diff-config.txt +++ b/Documentation/diff-config.txt @@ -112,7 +112,8 @@ diff.orderFile:: diff.renameLimit:: The number of files to consider when performing the copy/rename - detection; equivalent to the 'git diff' option `-l`. + detection; equivalent to the 'git diff' option `-l`. This setting + has no effect if rename detection is turned off. diff.renames:: Whether and how Git detects renames. If set to "false", diff --git a/Documentation/fetch-options.txt b/Documentation/fetch-options.txt index 8631e365f4..97d3217df9 100644 --- a/Documentation/fetch-options.txt +++ b/Documentation/fetch-options.txt @@ -188,6 +188,14 @@ endif::git-pull[] is specified. This flag forces progress status even if the standard error stream is not directed to a terminal. +-o <option>:: +--server-option=<option>:: + Transmit the given string to the server when communicating using + protocol version 2. The given string must not contain a NUL or LF + character. + When multiple `--server-option=<option>` are given, they are all + sent to the other side in the order listed on the command line. + -4:: --ipv4:: Use IPv4 addresses only, ignoring IPv6 addresses. diff --git a/Documentation/git-add.txt b/Documentation/git-add.txt index d50fa339dc..45652fe4a6 100644 --- a/Documentation/git-add.txt +++ b/Documentation/git-add.txt @@ -193,7 +193,7 @@ for "git add --no-all <pathspec>...", i.e. ignored removed files. for command-line options). -Configuration +CONFIGURATION ------------- The optional configuration variable `core.excludesFile` indicates a path to a @@ -226,7 +226,7 @@ Because this example lets the shell expand the asterisk (i.e. you are listing the files explicitly), it does not consider `subdir/git-foo.sh`. -Interactive mode +INTERACTIVE MODE ---------------- When the command enters the interactive mode, it shows the output of the 'status' subcommand, and then goes into its diff --git a/Documentation/git-apply.txt b/Documentation/git-apply.txt index 4ebc3d3271..67228494c0 100644 --- a/Documentation/git-apply.txt +++ b/Documentation/git-apply.txt @@ -113,8 +113,10 @@ explained for the configuration variable `core.quotePath` (see linkgit:git-config[1]). -p<n>:: - Remove <n> leading slashes from traditional diff paths. The - default is 1. + Remove <n> leading path components (separated by slashes) from + traditional diff paths. E.g., with `-p2`, a patch against + `a/dir/file` will be applied directly to `file`. The default is + 1. -C<n>:: Ensure at least <n> lines of surrounding context match before @@ -240,7 +242,7 @@ When `git apply` is used as a "better GNU patch", the user can pass the `--unsafe-paths` option to override this safety check. This option has no effect when `--index` or `--cached` is in use. -Configuration +CONFIGURATION ------------- apply.ignoreWhitespace:: @@ -251,7 +253,7 @@ apply.whitespace:: When no `--whitespace` flag is given from the command line, this configuration item is used as the default. -Submodules +SUBMODULES ---------- If the patch contains any changes to submodules then 'git apply' treats these changes as follows. diff --git a/Documentation/git-branch.txt b/Documentation/git-branch.txt index b3084c99c1..02eccbb931 100644 --- a/Documentation/git-branch.txt +++ b/Documentation/git-branch.txt @@ -287,7 +287,7 @@ CONFIGURATION `--list` is used or implied. The default is to use a pager. See linkgit:git-config[1]. -Examples +EXAMPLES -------- Start development from a known tag:: @@ -318,7 +318,7 @@ See linkgit:git-fetch[1]. is currently checked out) does not have all commits from the test branch. -Notes +NOTES ----- If you are creating a branch that you want to checkout immediately, it is diff --git a/Documentation/git-bundle.txt b/Documentation/git-bundle.txt index 3a8120c3b3..7d6c9dcd17 100644 --- a/Documentation/git-bundle.txt +++ b/Documentation/git-bundle.txt @@ -92,8 +92,8 @@ It is okay to err on the side of caution, causing the bundle file to contain objects already in the destination, as these are ignored when unpacking at the destination. -EXAMPLE -------- +EXAMPLES +-------- Assume you want to transfer the history from a repository R1 on machine A to another repository R2 on machine B. diff --git a/Documentation/git-clone.txt b/Documentation/git-clone.txt index 42ca7b5095..a55536f0bf 100644 --- a/Documentation/git-clone.txt +++ b/Documentation/git-clone.txt @@ -260,7 +260,7 @@ or `--mirror` is given) <repository>:: The (possibly remote) repository to clone from. See the - <<URLS,URLS>> section below for more information on specifying + <<URLS,GIT URLS>> section below for more information on specifying repositories. <directory>:: @@ -273,7 +273,7 @@ or `--mirror` is given) :git-clone: 1 include::urls.txt[] -Examples +EXAMPLES -------- * Clone from upstream: diff --git a/Documentation/git-commit-graph.txt b/Documentation/git-commit-graph.txt new file mode 100644 index 0000000000..4c97b555cc --- /dev/null +++ b/Documentation/git-commit-graph.txt @@ -0,0 +1,94 @@ +git-commit-graph(1) +=================== + +NAME +---- +git-commit-graph - Write and verify Git commit graph files + + +SYNOPSIS +-------- +[verse] +'git commit-graph read' [--object-dir <dir>] +'git commit-graph write' <options> [--object-dir <dir>] + + +DESCRIPTION +----------- + +Manage the serialized commit graph file. + + +OPTIONS +------- +--object-dir:: + Use given directory for the location of packfiles and commit graph + file. This parameter exists to specify the location of an alternate + that only has the objects directory, not a full .git directory. The + commit graph file is expected to be at <dir>/info/commit-graph and + the packfiles are expected to be in <dir>/pack. + + +COMMANDS +-------- +'write':: + +Write a commit graph file based on the commits found in packfiles. ++ +With the `--stdin-packs` option, generate the new commit graph by +walking objects only in the specified pack-indexes. (Cannot be combined +with --stdin-commits.) ++ +With the `--stdin-commits` option, generate the new commit graph by +walking commits starting at the commits specified in stdin as a list +of OIDs in hex, one OID per line. (Cannot be combined with +--stdin-packs.) ++ +With the `--append` option, include all commits that are present in the +existing commit-graph file. + +'read':: + +Read a graph file given by the commit-graph file and output basic +details about the graph file. Used for debugging purposes. + + +EXAMPLES +-------- + +* Write a commit graph file for the packed commits in your local .git folder. ++ +------------------------------------------------ +$ git commit-graph write +------------------------------------------------ + +* Write a graph file, extending the current graph file using commits +* in <pack-index>. ++ +------------------------------------------------ +$ echo <pack-index> | git commit-graph write --stdin-packs +------------------------------------------------ + +* Write a graph file containing all reachable commits. ++ +------------------------------------------------ +$ git show-ref -s | git commit-graph write --stdin-commits +------------------------------------------------ + +* Write a graph file containing all commits in the current +* commit-graph file along with those reachable from HEAD. ++ +------------------------------------------------ +$ git rev-parse HEAD | git commit-graph write --stdin-commits --append +------------------------------------------------ + +* Read basic information from the commit-graph file. ++ +------------------------------------------------ +$ git commit-graph read +------------------------------------------------ + + +GIT +--- +Part of the linkgit:git[1] suite diff --git a/Documentation/git-config.txt b/Documentation/git-config.txt index e09ed5d7d5..18ddc78f42 100644 --- a/Documentation/git-config.txt +++ b/Documentation/git-config.txt @@ -9,13 +9,13 @@ git-config - Get and set repository or global options SYNOPSIS -------- [verse] -'git config' [<file-option>] [type] [--show-origin] [-z|--null] name [value [value_regex]] -'git config' [<file-option>] [type] --add name value -'git config' [<file-option>] [type] --replace-all name value [value_regex] -'git config' [<file-option>] [type] [--show-origin] [-z|--null] --get name [value_regex] -'git config' [<file-option>] [type] [--show-origin] [-z|--null] --get-all name [value_regex] -'git config' [<file-option>] [type] [--show-origin] [-z|--null] [--name-only] --get-regexp name_regex [value_regex] -'git config' [<file-option>] [type] [-z|--null] --get-urlmatch name URL +'git config' [<file-option>] [--type=<type>] [--show-origin] [-z|--null] name [value [value_regex]] +'git config' [<file-option>] [--type=<type>] --add name value +'git config' [<file-option>] [--type=<type>] --replace-all name value [value_regex] +'git config' [<file-option>] [--type=<type>] [--show-origin] [-z|--null] --get name [value_regex] +'git config' [<file-option>] [--type=<type>] [--show-origin] [-z|--null] --get-all name [value_regex] +'git config' [<file-option>] [--type=<type>] [--show-origin] [-z|--null] [--name-only] --get-regexp name_regex [value_regex] +'git config' [<file-option>] [--type=<type>] [-z|--null] --get-urlmatch name URL 'git config' [<file-option>] --unset name [value_regex] 'git config' [<file-option>] --unset-all name [value_regex] 'git config' [<file-option>] --rename-section old_name new_name @@ -38,12 +38,10 @@ existing values that match the regexp are updated or unset. If you want to handle the lines that do *not* match the regex, just prepend a single exclamation mark in front (see also <<EXAMPLES>>). -The type specifier can be either `--int` or `--bool`, to make -'git config' ensure that the variable(s) are of the given type and -convert the value to the canonical form (simple decimal number for int, -a "true" or "false" string for bool), or `--path`, which does some -path expansion (see `--path` below). If no type specifier is passed, no -checks or transformations are performed on the value. +The `--type=<type>` option instructs 'git config' to ensure that incoming and +outgoing values are canonicalize-able under the given <type>. If no +`--type=<type>` is given, no canonicalization will be performed. Callers may +unset an existing `--type` specifier with `--no-type`. When reading, the values are read from the system, global and repository local configuration files by default, and options @@ -160,30 +158,43 @@ See also <<FILES>>. --list:: List all variables set in config file, along with their values. ---bool:: - 'git config' will ensure that the output is "true" or "false" +--type <type>:: + 'git config' will ensure that any input or output is valid under the given + type constraint(s), and will canonicalize outgoing values in `<type>`'s + canonical form. ++ +Valid `<type>`'s include: ++ +- 'bool': canonicalize values as either "true" or "false". +- 'int': canonicalize values as simple decimal numbers. An optional suffix of + 'k', 'm', or 'g' will cause the value to be multiplied by 1024, 1048576, or + 1073741824 upon input. +- 'bool-or-int': canonicalize according to either 'bool' or 'int', as described + above. +- 'path': canonicalize by adding a leading `~` to the value of `$HOME` and + `~user` to the home directory for the specified user. This specifier has no + effect when setting the value (but you can use `git config section.variable + ~/` from the command line to let your shell do the expansion.) +- 'expiry-date': canonicalize by converting from a fixed or relative date-string + to a timestamp. This specifier has no effect when setting the value. +- 'color': When getting a value, canonicalize by converting to an ANSI color + escape sequence. When setting a value, a sanity-check is performed to ensure + that the given value is canonicalize-able as an ANSI color, but it is written + as-is. ++ +--bool:: --int:: - 'git config' will ensure that the output is a simple - decimal number. An optional value suffix of 'k', 'm', or 'g' - in the config file will cause the value to be multiplied - by 1024, 1048576, or 1073741824 prior to output. - --bool-or-int:: - 'git config' will ensure that the output matches the format of - either --bool or --int, as described above. - --path:: - `git config` will expand a leading `~` to the value of - `$HOME`, and `~user` to the home directory for the - specified user. This option has no effect when setting the - value (but you can use `git config section.variable ~/` - from the command line to let your shell do the expansion). - --expiry-date:: - `git config` will ensure that the output is converted from - a fixed or relative date-string to a timestamp. This option - has no effect when setting the value. + Historical options for selecting a type specifier. Prefer instead `--type`, + (see: above). + +--no-type:: + Un-sets the previously set type specifier (if one was previously set). This + option requests that 'git config' not canonicalize the retrieved variable. + `--no-type` has no effect without `--type=<type>` or `--<type>`. -z:: --null:: @@ -221,6 +232,8 @@ See also <<FILES>>. output it as the ANSI color escape sequence to the standard output. The optional `default` parameter is used instead, if there is no color configured for `name`. ++ +`--type=color [--default=<default>]` is preferred over `--get-color`. -e:: --edit:: @@ -233,6 +246,10 @@ See also <<FILES>>. using `--file`, `--global`, etc) and `on` when searching all config files. +--default <value>:: + When using `--get`, and the requested variable is not found, behave as if + <value> were the value assigned to the that variable. + CONFIGURATION ------------- `pager.config` is only respected when listing configuration, i.e., when diff --git a/Documentation/git-cvsserver.txt b/Documentation/git-cvsserver.txt index ba90066f10..37b96c5453 100644 --- a/Documentation/git-cvsserver.txt +++ b/Documentation/git-cvsserver.txt @@ -207,7 +207,7 @@ allowing access over SSH. ------ [[dbbackend]] -Database Backend +DATABASE BACKEND ---------------- 'git-cvsserver' uses one database per Git head (i.e. CVS module) to @@ -321,7 +321,7 @@ git-cvsserver, as described above. When these environment variables are set, the corresponding command-line arguments may not be used. -Eclipse CVS Client Notes +ECLIPSE CVS CLIENT NOTES ------------------------ To get a checkout with the Eclipse CVS client: @@ -346,7 +346,7 @@ offer. In that case CVS_SERVER is ignored, and you will have to replace the cvs utility on the server with 'git-cvsserver' or manipulate your `.bashrc` so that calling 'cvs' effectively calls 'git-cvsserver'. -Clients known to work +CLIENTS KNOWN TO WORK --------------------- - CVS 1.12.9 on Debian @@ -354,7 +354,7 @@ Clients known to work - Eclipse 3.0, 3.1.2 on MacOSX (see Eclipse CVS Client Notes) - TortoiseCVS -Operations supported +OPERATIONS SUPPORTED -------------------- All the operations required for normal use are supported, including @@ -424,7 +424,7 @@ For best consistency with 'cvs', it is probably best to override the defaults by setting `gitcvs.usecrlfattr` to true, and `gitcvs.allBinary` to "guess". -Dependencies +DEPENDENCIES ------------ 'git-cvsserver' depends on DBD::SQLite. diff --git a/Documentation/git-diff-index.txt b/Documentation/git-diff-index.txt index b380677718..f4bd8155c0 100644 --- a/Documentation/git-diff-index.txt +++ b/Documentation/git-diff-index.txt @@ -37,14 +37,14 @@ include::diff-options.txt[] include::diff-format.txt[] -Operating Modes +OPERATING MODES --------------- You can choose whether you want to trust the index file entirely (using the `--cached` flag) or ask the diff logic to show any files that don't match the stat state as being "tentatively changed". Both of these operations are very useful indeed. -Cached Mode +CACHED MODE ----------- If `--cached` is specified, it allows you to ask: @@ -77,7 +77,7 @@ So doing a `git diff-index --cached` is basically very useful when you are asking yourself "what have I already marked for being committed, and what's the difference to a previous tree". -Non-cached Mode +NON-CACHED MODE --------------- The "non-cached" mode takes a different approach, and is potentially the more useful of the two in that what it does can't be emulated with diff --git a/Documentation/git-diff-tree.txt b/Documentation/git-diff-tree.txt index 7870e175b7..2319b2b192 100644 --- a/Documentation/git-diff-tree.txt +++ b/Documentation/git-diff-tree.txt @@ -116,7 +116,7 @@ include::pretty-options.txt[] include::pretty-formats.txt[] -Limiting Output +LIMITING OUTPUT --------------- If you're only interested in differences in a subset of files, for example some architecture-specific files, you might do: diff --git a/Documentation/git-diff.txt b/Documentation/git-diff.txt index b0c1bb95c8..7c2c442700 100644 --- a/Documentation/git-diff.txt +++ b/Documentation/git-diff.txt @@ -13,7 +13,7 @@ SYNOPSIS 'git diff' [options] --cached [<commit>] [--] [<path>...] 'git diff' [options] <commit> <commit> [--] [<path>...] 'git diff' [options] <blob> <blob> -'git diff' [options] [--no-index] [--] <path> <path> +'git diff' [options] --no-index [--] <path> <path> DESCRIPTION ----------- @@ -21,7 +21,7 @@ Show changes between the working tree and the index or a tree, changes between the index and a tree, changes between two trees, changes between two blob objects, or changes between two files on disk. -'git diff' [--options] [--] [<path>...]:: +'git diff' [options] [--] [<path>...]:: This form is to view the changes you made relative to the index (staging area for the next commit). In other @@ -29,7 +29,7 @@ two blob objects, or changes between two files on disk. further add to the index but you still haven't. You can stage these changes by using linkgit:git-add[1]. -'git diff' --no-index [--options] [--] [<path>...]:: +'git diff' [options] --no-index [--] <path> <path>:: This form is to compare the given two paths on the filesystem. You can omit the `--no-index` option when @@ -38,7 +38,7 @@ two blob objects, or changes between two files on disk. or when running the command outside a working tree controlled by Git. -'git diff' [--options] --cached [<commit>] [--] [<path>...]:: +'git diff' [options] --cached [<commit>] [--] [<path>...]:: This form is to view the changes you staged for the next commit relative to the named <commit>. Typically you @@ -48,7 +48,7 @@ two blob objects, or changes between two files on disk. <commit> is not given, it shows all staged changes. --staged is a synonym of --cached. -'git diff' [--options] <commit> [--] [<path>...]:: +'git diff' [options] <commit> [--] [<path>...]:: This form is to view the changes you have in your working tree relative to the named <commit>. You can @@ -56,18 +56,18 @@ two blob objects, or changes between two files on disk. branch name to compare with the tip of a different branch. -'git diff' [--options] <commit> <commit> [--] [<path>...]:: +'git diff' [options] <commit> <commit> [--] [<path>...]:: This is to view the changes between two arbitrary <commit>. -'git diff' [--options] <commit>..<commit> [--] [<path>...]:: +'git diff' [options] <commit>..<commit> [--] [<path>...]:: This is synonymous to the previous form. If <commit> on one side is omitted, it will have the same effect as using HEAD instead. -'git diff' [--options] <commit>\...<commit> [--] [<path>...]:: +'git diff' [options] <commit>\...<commit> [--] [<path>...]:: This form is to view the changes on the branch containing and up to the second <commit>, starting at a common ancestor diff --git a/Documentation/git-fast-export.txt b/Documentation/git-fast-export.txt index ed57c684db..44098595dd 100644 --- a/Documentation/git-fast-export.txt +++ b/Documentation/git-fast-export.txt @@ -202,7 +202,7 @@ smaller output, and it is usually easy to quickly confirm that there is no private data in the stream. -Limitations +LIMITATIONS ----------- Since 'git fast-import' cannot tag trees, you will not be diff --git a/Documentation/git-fast-import.txt b/Documentation/git-fast-import.txt index 3d3d219e58..cdf696ff7f 100644 --- a/Documentation/git-fast-import.txt +++ b/Documentation/git-fast-import.txt @@ -139,7 +139,7 @@ Performance and Compression Tuning fastimport.unpackLimit:: See linkgit:git-config[1] -Performance +PERFORMANCE ----------- The design of fast-import allows it to import large projects in a minimum amount of memory usage and processing time. Assuming the frontend @@ -155,7 +155,7 @@ faster if the source data is stored on a different drive than the destination Git repository (due to less IO contention). -Development Cost +DEVELOPMENT COST ---------------- A typical frontend for fast-import tends to weigh in at approximately 200 lines of Perl/Python/Ruby code. Most developers have been able to @@ -165,7 +165,7 @@ an ideal situation, given that most conversion tools are throw-away (use once, and never look back). -Parallel Operation +PARALLEL OPERATION ------------------ Like 'git push' or 'git fetch', imports handled by fast-import are safe to run alongside parallel `git repack -a -d` or `git gc` invocations, @@ -186,7 +186,7 @@ this only be used on an otherwise quiet repository. Using --force is not necessary for an initial import into an empty repository. -Technical Discussion +TECHNICAL DISCUSSION -------------------- fast-import tracks a set of branches in memory. Any branch can be created or modified at any point during the import process by sending a @@ -204,7 +204,7 @@ directory also allows fast-import to run very quickly, as it does not need to perform any costly file update operations when switching between branches. -Input Format +INPUT FORMAT ------------ With the exception of raw file data (which Git does not interpret) the fast-import input format is text (ASCII) based. This text based @@ -1131,7 +1131,7 @@ If the `--done` command-line option or `feature done` command is in use, the `done` command is mandatory and marks the end of the stream. -Responses To Commands +RESPONSES TO COMMANDS --------------------- New objects written by fast-import are not available immediately. Most fast-import commands have no visible effect until the next @@ -1160,7 +1160,7 @@ To avoid deadlock, such frontends must completely consume any pending output from `progress`, `ls`, `get-mark`, and `cat-blob` before performing writes to fast-import that might block. -Crash Reports +CRASH REPORTS ------------- If fast-import is supplied invalid input it will terminate with a non-zero exit status and create a crash report in the top level of @@ -1247,7 +1247,7 @@ An example crash: END OF CRASH REPORT ==== -Tips and Tricks +TIPS AND TRICKS --------------- The following tips and tricks have been collected from various users of fast-import, and are offered here as suggestions. @@ -1349,7 +1349,7 @@ Your users will feel better knowing how much of the data stream has been processed. -Packfile Optimization +PACKFILE OPTIMIZATION --------------------- When packing a blob fast-import always attempts to deltify against the last blob written. Unless specifically arranged for by the frontend, @@ -1380,7 +1380,7 @@ to force recomputation of all deltas can significantly reduce the final packfile size (30-50% smaller can be quite typical). -Memory Utilization +MEMORY UTILIZATION ------------------ There are a number of factors which affect how much memory fast-import requires to perform an import. Like critical sections of core @@ -1458,7 +1458,7 @@ and lazy loading of subtrees, allows fast-import to efficiently import projects with 2,000+ branches and 45,114+ files in a very limited memory footprint (less than 2.7 MiB per active branch). -Signals +SIGNALS ------- Sending *SIGUSR1* to the 'git fast-import' process ends the current packfile early, simulating a `checkpoint` command. The impatient diff --git a/Documentation/git-filter-branch.txt b/Documentation/git-filter-branch.txt index b634043183..e6f08ab189 100644 --- a/Documentation/git-filter-branch.txt +++ b/Documentation/git-filter-branch.txt @@ -230,7 +230,7 @@ rewrite, the exit status is `2`. On any other error, the exit status may be any other non-zero value. -Examples +EXAMPLES -------- Suppose you want to remove a file (containing confidential information @@ -288,7 +288,7 @@ git filter-branch --parent-filter \ or even simpler: ----------------------------------------------- -echo "$commit-id $graft-id" >> .git/info/grafts +git replace --graft $commit-id $graft-id git filter-branch $graft-id..HEAD ----------------------------------------------- @@ -406,7 +406,7 @@ git filter-branch --index-filter \ -Checklist for Shrinking a Repository +CHECKLIST FOR SHRINKING A REPOSITORY ------------------------------------ git-filter-branch can be used to get rid of a subset of files, @@ -445,7 +445,7 @@ warned. (or if your git-gc is not new enough to support arguments to `--prune`, use `git repack -ad; git prune` instead). -Notes +NOTES ----- git-filter-branch allows you to make complex shell-scripted rewrites diff --git a/Documentation/git-fmt-merge-msg.txt b/Documentation/git-fmt-merge-msg.txt index 44892c447e..423b6e033b 100644 --- a/Documentation/git-fmt-merge-msg.txt +++ b/Documentation/git-fmt-merge-msg.txt @@ -57,8 +57,8 @@ merge.summary:: Synonym to `merge.log`; this is deprecated and will be removed in the future. -EXAMPLE -------- +EXAMPLES +-------- --------- $ git fetch origin master diff --git a/Documentation/git-format-patch.txt b/Documentation/git-format-patch.txt index 6cbe462a77..b41e1329a7 100644 --- a/Documentation/git-format-patch.txt +++ b/Documentation/git-format-patch.txt @@ -47,7 +47,7 @@ There are two ways to specify which commits to operate on. The first rule takes precedence in the case of a single <commit>. To apply the second rule, i.e., format everything since the beginning of -history up until <commit>, use the '\--root' option: `git format-patch +history up until <commit>, use the `--root` option: `git format-patch --root <commit>`. If you want to format only <commit> itself, you can do this with `git format-patch -1 <commit>`. diff --git a/Documentation/git-gc.txt b/Documentation/git-gc.txt index 3126e0dd00..24b2dd44fe 100644 --- a/Documentation/git-gc.txt +++ b/Documentation/git-gc.txt @@ -9,7 +9,7 @@ git-gc - Cleanup unnecessary files and optimize the local repository SYNOPSIS -------- [verse] -'git gc' [--aggressive] [--auto] [--quiet] [--prune=<date> | --no-prune] [--force] +'git gc' [--aggressive] [--auto] [--quiet] [--prune=<date> | --no-prune] [--force] [--keep-largest-pack] DESCRIPTION ----------- @@ -56,10 +56,16 @@ single pack using `git repack -d -l`. Setting the value of `gc.auto` to 0 disables automatic packing of loose objects. + If the number of packs exceeds the value of `gc.autoPackLimit`, -then existing packs (except those marked with a `.keep` file) +then existing packs (except those marked with a `.keep` file +or over `gc.bigPackThreshold` limit) are consolidated into a single pack by using the `-A` option of -'git repack'. Setting `gc.autoPackLimit` to 0 disables -automatic consolidation of packs. +'git repack'. +If the amount of memory is estimated not enough for `git repack` to +run smoothly and `gc.bigPackThreshold` is not set, the largest +pack will also be excluded (this is the equivalent of running `git gc` +with `--keep-base-pack`). +Setting `gc.autoPackLimit` to 0 disables automatic consolidation of +packs. + If houskeeping is required due to many loose objects or packs, all other housekeeping tasks (e.g. rerere, working trees, reflog...) will @@ -84,7 +90,12 @@ be performed as well. Force `git gc` to run even if there may be another `git gc` instance running on this repository. -Configuration +--keep-largest-pack:: + All packs except the largest pack and those marked with a + `.keep` files are consolidated into a single pack. When this + option is used, `gc.bigPackThreshold` is ignored. + +CONFIGURATION ------------- The optional configuration variable `gc.reflogExpire` can be @@ -129,7 +140,7 @@ The optional configuration variable `gc.aggressiveWindow` controls how much time is spent optimizing the delta compression of the objects in the repository when the --aggressive option is specified. The larger the value, the more time is spent optimizing the delta compression. See -the documentation for the --window' option in linkgit:git-repack[1] for +the documentation for the --window option in linkgit:git-repack[1] for more details. This defaults to 250. Similarly, the optional configuration variable `gc.aggressiveDepth` @@ -144,7 +155,7 @@ old a stale working tree should be before `git worktree prune` deletes it. Default is "3 months ago". -Notes +NOTES ----- 'git gc' tries very hard not to delete objects that are referenced diff --git a/Documentation/git-grep.txt b/Documentation/git-grep.txt index 18b494731f..312409a607 100644 --- a/Documentation/git-grep.txt +++ b/Documentation/git-grep.txt @@ -293,7 +293,7 @@ providing this option will cause it to die. For more details about the <pathspec> syntax, see the 'pathspec' entry in linkgit:gitglossary[7]. -Examples +EXAMPLES -------- `git grep 'time_t' -- '*.[ch]'`:: diff --git a/Documentation/git-http-fetch.txt b/Documentation/git-http-fetch.txt index 21a33d2c41..666b042679 100644 --- a/Documentation/git-http-fetch.txt +++ b/Documentation/git-http-fetch.txt @@ -15,8 +15,9 @@ DESCRIPTION ----------- Downloads a remote Git repository via HTTP. -*NOTE*: use of this command without -a is deprecated. The -a -behaviour will become the default in a future release. +This command always gets all objects. Historically, there were three options +`-a`, `-c` and `-t` for choosing which objects to download. They are now +silently ignored. OPTIONS ------- @@ -24,12 +25,8 @@ commit-id:: Either the hash or the filename under [URL]/refs/ to pull. --c:: - Get the commit objects. --t:: - Get trees associated with the commit objects. --a:: - Get all the objects. +-a, -c, -t:: + These options are ignored for historical reasons. -v:: Report what is downloaded. diff --git a/Documentation/git-http-push.txt b/Documentation/git-http-push.txt index 2aceb6f26d..ea03a4eeb0 100644 --- a/Documentation/git-http-push.txt +++ b/Documentation/git-http-push.txt @@ -55,7 +55,7 @@ OPTIONS The remote refs to update. -Specifying the Refs +SPECIFYING THE REFS ------------------- A '<ref>' specification can be either a single pattern, or a pair diff --git a/Documentation/git-imap-send.txt b/Documentation/git-imap-send.txt index 5d1e4c80cd..032613c420 100644 --- a/Documentation/git-imap-send.txt +++ b/Documentation/git-imap-send.txt @@ -136,8 +136,8 @@ Using direct mode with SSL: ......................... -EXAMPLE -------- +EXAMPLES +-------- To submit patches using GMail's IMAP interface, first, edit your ~/.gitconfig to specify your account settings: diff --git a/Documentation/git-index-pack.txt b/Documentation/git-index-pack.txt index 138edb47b6..d5b7560bfe 100644 --- a/Documentation/git-index-pack.txt +++ b/Documentation/git-index-pack.txt @@ -93,8 +93,8 @@ OPTIONS --max-input-size=<size>:: Die, if the pack is larger than <size>. -Note ----- +NOTES +----- Once the index has been created, the list of object names is sorted and the SHA-1 hash of that list is printed to stdout. If --stdin was diff --git a/Documentation/git-log.txt b/Documentation/git-log.txt index 5437f8b0f0..90761f1694 100644 --- a/Documentation/git-log.txt +++ b/Documentation/git-log.txt @@ -9,7 +9,7 @@ git-log - Show commit logs SYNOPSIS -------- [verse] -'git log' [<options>] [<revision range>] [[\--] <path>...] +'git log' [<options>] [<revision range>] [[--] <path>...] DESCRIPTION ----------- @@ -90,13 +90,13 @@ include::line-range-format.txt[] ways to spell <revision range>, see the 'Specifying Ranges' section of linkgit:gitrevisions[7]. -[\--] <path>...:: +[--] <path>...:: Show only commits that are enough to explain how the files that match the specified paths came to be. See 'History Simplification' below for details and other simplification modes. + -Paths may need to be prefixed with ``\-- '' to separate them from +Paths may need to be prefixed with `--` to separate them from options or the revision range, when confusion arises. include::rev-list-options.txt[] @@ -125,7 +125,7 @@ EXAMPLES `git log --since="2 weeks ago" -- gitk`:: Show the changes during the last two weeks to the file 'gitk'. - The ``--'' is necessary to avoid confusion with the *branch* named + The `--` is necessary to avoid confusion with the *branch* named 'gitk' `git log --name-status release..test`:: diff --git a/Documentation/git-ls-files.txt b/Documentation/git-ls-files.txt index 3ac3e3a77d..5298f1bc30 100644 --- a/Documentation/git-ls-files.txt +++ b/Documentation/git-ls-files.txt @@ -53,7 +53,8 @@ OPTIONS Show only ignored files in the output. When showing files in the index, print only those matched by an exclude pattern. When showing "other" files, show only those matched by an exclude - pattern. + pattern. Standard ignore rules are not automatically activated, + therefore at least one of the `--exclude*` options is required. -s:: --stage:: @@ -183,7 +184,7 @@ followed by the ("attr/<eolattr>"). Files to show. If no files are given all files which match the other specified criteria are shown. -Output +OUTPUT ------ 'git ls-files' just outputs the filenames unless `--stage` is specified in which case it outputs: @@ -208,7 +209,7 @@ quoted as explained for the configuration variable `core.quotePath` verbatim and the line is terminated by a NUL byte. -Exclude Patterns +EXCLUDE PATTERNS ---------------- 'git ls-files' can use a list of "exclude patterns" when diff --git a/Documentation/git-ls-remote.txt b/Documentation/git-ls-remote.txt index 5f2628c8f8..b9fd3770a6 100644 --- a/Documentation/git-ls-remote.txt +++ b/Documentation/git-ls-remote.txt @@ -10,7 +10,7 @@ SYNOPSIS -------- [verse] 'git ls-remote' [--heads] [--tags] [--refs] [--upload-pack=<exec>] - [-q | --quiet] [--exit-code] [--get-url] + [-q | --quiet] [--exit-code] [--get-url] [--sort=<key>] [--symref] [<repository> [<refs>...]] DESCRIPTION @@ -60,6 +60,24 @@ OPTIONS upload-pack only shows the symref HEAD, so it will be the only one shown by ls-remote. +--sort=<key>:: + Sort based on the key given. Prefix `-` to sort in descending order + of the value. Supports "version:refname" or "v:refname" (tag names + are treated as versions). The "version:refname" sort order can also + be affected by the "versionsort.suffix" configuration variable. + See linkgit:git-for-each-ref[1] for more sort options, but be aware + keys like `committerdate` that require access to the objects + themselves will not work for refs whose objects have not yet been + fetched from the remote, and will give a `missing object` error. + +-o <option>:: +--server-option=<option>:: + Transmit the given string to the server when communicating using + protocol version 2. The given string must not contain a NUL or LF + character. + When multiple `--server-option=<option>` are given, they are all + sent to the other side in the order listed on the command line. + <repository>:: The "remote" repository to query. This parameter can be either a URL or the name of a remote (see the GIT URLS and @@ -90,6 +108,10 @@ EXAMPLES c5db5456ae3b0873fc659c19fafdde22313cc441 refs/tags/v0.99.2 7ceca275d047c90c0c7d5afb13ab97efdf51bd6e refs/tags/v0.99.3 +SEE ALSO +-------- +linkgit:git-check-ref-format[1]. + GIT --- Part of the linkgit:git[1] suite diff --git a/Documentation/git-name-rev.txt b/Documentation/git-name-rev.txt index e8e68f528c..5cb0eb0855 100644 --- a/Documentation/git-name-rev.txt +++ b/Documentation/git-name-rev.txt @@ -61,8 +61,8 @@ OPTIONS --always:: Show uniquely abbreviated commit object as fallback. -EXAMPLE -------- +EXAMPLES +-------- Given a commit, find out where it is relative to the local refs. Say somebody wrote you about that fantastic commit 33db5f4d9027a10e477ccf054b2c1ab94f74c85a. diff --git a/Documentation/git-p4.txt b/Documentation/git-p4.txt index d8c8f11c9f..b0abe2cb07 100644 --- a/Documentation/git-p4.txt +++ b/Documentation/git-p4.txt @@ -29,8 +29,8 @@ Submit Git changes back to p4 using 'git p4 submit'. The command the updated p4 remote branch. -EXAMPLE -------- +EXAMPLES +-------- * Clone a repository: + ------------ diff --git a/Documentation/git-pack-objects.txt b/Documentation/git-pack-objects.txt index 81bc490ac5..d95b472d16 100644 --- a/Documentation/git-pack-objects.txt +++ b/Documentation/git-pack-objects.txt @@ -12,7 +12,7 @@ SYNOPSIS 'git pack-objects' [-q | --progress | --all-progress] [--all-progress-implied] [--no-reuse-delta] [--delta-base-offset] [--non-empty] [--local] [--incremental] [--window=<n>] [--depth=<n>] - [--revs [--unpacked | --all]] + [--revs [--unpacked | --all]] [--keep-pack=<pack-name>] [--stdout [--filter=<filter-spec>] | base-name] [--shallow] [--keep-true-parents] < object-list @@ -96,7 +96,9 @@ base-name:: it too deep affects the performance on the unpacker side, because delta data needs to be applied that many times to get to the necessary object. - The default value for --window is 10 and --depth is 50. ++ +The default value for --window is 10 and --depth is 50. The maximum +depth is 4095. --window-memory=<n>:: This option provides an additional limit on top of `--window`; @@ -126,6 +128,13 @@ base-name:: has a .keep file to be ignored, even if it would have otherwise been packed. +--keep-pack=<pack-name>:: + This flag causes an object already in the given pack to be + ignored, even if it would have otherwise been + packed. `<pack-name>` is the the pack file name without + leading directory (e.g. `pack-123.pack`). The option could be + specified multiple times to keep multiple packs. + --incremental:: This flag causes an object already in a pack to be ignored even if it would have otherwise been packed. @@ -267,6 +276,19 @@ Unexpected missing object will raise an error. locally created objects [without .promisor] and objects from the promisor remote [with .promisor].) This is used with partial clone. +--keep-unreachable:: + Objects unreachable from the refs in packs named with + --unpacked= option are added to the resulting pack, in + addition to the reachable objects that are not in packs marked + with *.keep files. This implies `--revs`. + +--pack-loose-unreachable:: + Pack unreachable loose objects (and their loose counterparts + removed). This implies `--revs`. + +--unpack-unreachable:: + Keep unreachable objects in loose form. This implies `--revs`. + SEE ALSO -------- linkgit:git-rev-list[1] diff --git a/Documentation/git-prune.txt b/Documentation/git-prune.txt index a37c0af931..03552dd86f 100644 --- a/Documentation/git-prune.txt +++ b/Documentation/git-prune.txt @@ -56,8 +56,8 @@ OPTIONS reachable from any of our references, keep objects reachable from listed <head>s. -EXAMPLE -------- +EXAMPLES +-------- To prune objects not used by your repository or another that borrows from your repository via its @@ -67,7 +67,7 @@ borrows from your repository via its $ git prune $(cd ../another && git rev-parse --all) ------------ -Notes +NOTES ----- In most cases, users will not need to call 'git prune' directly, but diff --git a/Documentation/git-pull.txt b/Documentation/git-pull.txt index ce05b7a5b1..4e0ad6fd8e 100644 --- a/Documentation/git-pull.txt +++ b/Documentation/git-pull.txt @@ -101,13 +101,17 @@ Options related to merging include::merge-options.txt[] -r:: ---rebase[=false|true|preserve|interactive]:: +--rebase[=false|true|merges|preserve|interactive]:: When true, rebase the current branch on top of the upstream branch after fetching. If there is a remote-tracking branch corresponding to the upstream branch and the upstream branch was rebased since last fetched, the rebase uses that information to avoid rebasing non-local changes. + +When set to `merges`, rebase using `git rebase --rebase-merges` so that +the local merge commits are included in the rebase (see +linkgit:git-rebase[1] for details). ++ When set to preserve, rebase with the `--preserve-merges` option passed to `git rebase` so that locally created merge commits will not be flattened. + diff --git a/Documentation/git-push.txt b/Documentation/git-push.txt index 5b08302fc2..55277a9781 100644 --- a/Documentation/git-push.txt +++ b/Documentation/git-push.txt @@ -11,7 +11,7 @@ SYNOPSIS [verse] 'git push' [--all | --mirror | --tags] [--follow-tags] [--atomic] [-n | --dry-run] [--receive-pack=<git-receive-pack>] [--repo=<repository>] [-f | --force] [-d | --delete] [--prune] [-v | --verbose] - [-u | --set-upstream] [--push-option=<string>] + [-u | --set-upstream] [-o <string> | --push-option=<string>] [--[no-]signed|--signed=(true|false|if-asked)] [--force-with-lease[=<refname>[:<expect>]]] [--no-verify] [<repository> [<refspec>...]] @@ -123,6 +123,7 @@ already exists on the remote side. will be tab-separated and sent to stdout instead of stderr. The full symbolic names of the refs will be given. +-d:: --delete:: All listed refs are deleted from the remote repository. This is the same as prefixing all refs with a colon. @@ -300,7 +301,7 @@ origin +master` to force a push to the `master` branch). See the These options are passed to linkgit:git-send-pack[1]. A thin transfer significantly reduces the amount of sent data when the sender and receiver share many of the same objects in common. The default is - \--thin. + `--thin`. -q:: --quiet:: @@ -423,7 +424,7 @@ reason:: refs, no explanation is needed. For a failed ref, the reason for failure is described. -Note about fast-forwards +NOTE ABOUT FAST-FORWARDS ------------------------ When an update changes a branch (or more in general, a ref) that used to @@ -510,7 +511,7 @@ overwrite it. In other words, "git push --force" is a method reserved for a case where you do mean to lose history. -Examples +EXAMPLES -------- `git push`:: diff --git a/Documentation/git-read-tree.txt b/Documentation/git-read-tree.txt index f2a07d54d6..5c70bc2878 100644 --- a/Documentation/git-read-tree.txt +++ b/Documentation/git-read-tree.txt @@ -132,7 +132,7 @@ OPTIONS The id of the tree object(s) to be read/merged. -Merging +MERGING ------- If `-m` is specified, 'git read-tree' can perform 3 kinds of merge, a single tree merge if only 1 tree is given, a @@ -382,7 +382,7 @@ middle of doing, and when your working tree is ready (i.e. you have finished your work-in-progress), attempt the merge again. -Sparse checkout +SPARSE CHECKOUT --------------- "Sparse checkout" allows populating the working directory sparsely. diff --git a/Documentation/git-rebase.txt b/Documentation/git-rebase.txt index dd852068b1..bd5ecff980 100644 --- a/Documentation/git-rebase.txt +++ b/Documentation/git-rebase.txt @@ -379,6 +379,33 @@ The commit list format can be changed by setting the configuration option rebase.instructionFormat. A customized instruction format will automatically have the long commit hash prepended to the format. +-r:: +--rebase-merges[=(rebase-cousins|no-rebase-cousins)]:: + By default, a rebase will simply drop merge commits from the todo + list, and put the rebased commits into a single, linear branch. + With `--rebase-merges`, the rebase will instead try to preserve + the branching structure within the commits that are to be rebased, + by recreating the merge commits. Any resolved merge conflicts or + manual amendments in these merge commits will have to be + resolved/re-applied manually. ++ +By default, or when `no-rebase-cousins` was specified, commits which do not +have `<upstream>` as direct ancestor will keep their original branch point, +i.e. commits that would be excluded by gitlink:git-log[1]'s +`--ancestry-path` option will keep their original ancestry by default. If +the `rebase-cousins` mode is turned on, such commits are instead rebased +onto `<upstream>` (or `<onto>`, if specified). ++ +The `--rebase-merges` mode is similar in spirit to `--preserve-merges`, but +in contrast to that option works well in interactive rebases: commits can be +reordered, inserted and dropped at will. ++ +It is currently only possible to recreate the merge commits using the +`recursive` merge strategy; Different merge strategies can be used only via +explicit `exec git merge -s <strategy> [...]` commands. ++ +See also REBASING MERGES below. + -p:: --preserve-merges:: Recreate merge commits instead of flattening the history by replaying @@ -776,12 +803,146 @@ The ripple effect of a "hard case" recovery is especially bad: 'everyone' downstream from 'topic' will now have to perform a "hard case" recovery too! +REBASING MERGES +----------------- + +The interactive rebase command was originally designed to handle +individual patch series. As such, it makes sense to exclude merge +commits from the todo list, as the developer may have merged the +then-current `master` while working on the branch, only to rebase +all the commits onto `master` eventually (skipping the merge +commits). + +However, there are legitimate reasons why a developer may want to +recreate merge commits: to keep the branch structure (or "commit +topology") when working on multiple, inter-related branches. + +In the following example, the developer works on a topic branch that +refactors the way buttons are defined, and on another topic branch +that uses that refactoring to implement a "Report a bug" button. The +output of `git log --graph --format=%s -5` may look like this: + +------------ +* Merge branch 'report-a-bug' +|\ +| * Add the feedback button +* | Merge branch 'refactor-button' +|\ \ +| |/ +| * Use the Button class for all buttons +| * Extract a generic Button class from the DownloadButton one +------------ + +The developer might want to rebase those commits to a newer `master` +while keeping the branch topology, for example when the first topic +branch is expected to be integrated into `master` much earlier than the +second one, say, to resolve merge conflicts with changes to the +DownloadButton class that made it into `master`. + +This rebase can be performed using the `--rebase-merges` option. +It will generate a todo list looking like this: + +------------ +label onto + +# Branch: refactor-button +reset onto +pick 123456 Extract a generic Button class from the DownloadButton one +pick 654321 Use the Button class for all buttons +label refactor-button + +# Branch: report-a-bug +reset refactor-button # Use the Button class for all buttons +pick abcdef Add the feedback button +label report-a-bug + +reset onto +merge -C a1b2c3 refactor-button # Merge 'refactor-button' +merge -C 6f5e4d report-a-bug # Merge 'report-a-bug' +------------ + +In contrast to a regular interactive rebase, there are `label`, `reset` +and `merge` commands in addition to `pick` ones. + +The `label` command associates a label with the current HEAD when that +command is executed. These labels are created as worktree-local refs +(`refs/rewritten/<label>`) that will be deleted when the rebase +finishes. That way, rebase operations in multiple worktrees linked to +the same repository do not interfere with one another. If the `label` +command fails, it is rescheduled immediately, with a helpful message how +to proceed. + +The `reset` command resets the HEAD, index and worktree to the specified +revision. It is isimilar to an `exec git reset --hard <label>`, but +refuses to overwrite untracked files. If the `reset` command fails, it is +rescheduled immediately, with a helpful message how to edit the todo list +(this typically happens when a `reset` command was inserted into the todo +list manually and contains a typo). + +The `merge` command will merge the specified revision into whatever is +HEAD at that time. With `-C <original-commit>`, the commit message of +the specified merge commit will be used. When the `-C` is changed to +a lower-case `-c`, the message will be opened in an editor after a +successful merge so that the user can edit the message. + +If a `merge` command fails for any reason other than merge conflicts (i.e. +when the merge operation did not even start), it is rescheduled immediately. + +At this time, the `merge` command will *always* use the `recursive` +merge strategy, with no way to choose a different one. To work around +this, an `exec` command can be used to call `git merge` explicitly, +using the fact that the labels are worktree-local refs (the ref +`refs/rewritten/onto` would correspond to the label `onto`, for example). + +Note: the first command (`label onto`) labels the revision onto which +the commits are rebased; The name `onto` is just a convention, as a nod +to the `--onto` option. + +It is also possible to introduce completely new merge commits from scratch +by adding a command of the form `merge <merge-head>`. This form will +generate a tentative commit message and always open an editor to let the +user edit it. This can be useful e.g. when a topic branch turns out to +address more than a single concern and wants to be split into two or +even more topic branches. Consider this todo list: + +------------ +pick 192837 Switch from GNU Makefiles to CMake +pick 5a6c7e Document the switch to CMake +pick 918273 Fix detection of OpenSSL in CMake +pick afbecd http: add support for TLS v1.3 +pick fdbaec Fix detection of cURL in CMake on Windows +------------ + +The one commit in this list that is not related to CMake may very well +have been motivated by working on fixing all those bugs introduced by +switching to CMake, but it addresses a different concern. To split this +branch into two topic branches, the todo list could be edited like this: + +------------ +label onto + +pick afbecd http: add support for TLS v1.3 +label tlsv1.3 + +reset onto +pick 192837 Switch from GNU Makefiles to CMake +pick 918273 Fix detection of OpenSSL in CMake +pick fdbaec Fix detection of cURL in CMake on Windows +pick 5a6c7e Document the switch to CMake +label cmake + +reset onto +merge tlsv1.3 +merge cmake +------------ + BUGS ---- The todo list presented by `--preserve-merges --interactive` does not represent the topology of the revision graph. Editing commits and rewording their commit messages should work fine, but attempts to -reorder commits tend to produce counterintuitive results. +reorder commits tend to produce counterintuitive results. Use +`--rebase-merges` in such scenarios instead. For example, an attempt to rearrange ------------ diff --git a/Documentation/git-receive-pack.txt b/Documentation/git-receive-pack.txt index 86a4b32f0f..dedf97efbb 100644 --- a/Documentation/git-receive-pack.txt +++ b/Documentation/git-receive-pack.txt @@ -41,7 +41,7 @@ OPTIONS <directory>:: The repository to sync into. -pre-receive Hook +PRE-RECEIVE HOOK ---------------- Before any ref is updated, if $GIT_DIR/hooks/pre-receive file exists and is executable, it will be invoked once with no parameters. The @@ -116,7 +116,7 @@ bail out if the update is not to be supported. See the notes on the quarantine environment below. -update Hook +UPDATE HOOK ----------- Before each ref is updated, if $GIT_DIR/hooks/update file exists and is executable, it is invoked once per ref, with three parameters: @@ -138,7 +138,7 @@ ensure the ref will actually be updated, it is only a prerequisite. As such it is not a good idea to send notices (e.g. email) from this hook. Consider using the post-receive hook instead. -post-receive Hook +POST-RECEIVE HOOK ----------------- After all refs were updated (or attempted to be updated), if any ref update was successful, and if $GIT_DIR/hooks/post-receive @@ -198,7 +198,7 @@ after it was updated by 'git-receive-pack', but before the hook was able to evaluate it. It is recommended that hooks rely on sha1-new rather than the current value of refname. -post-update Hook +POST-UPDATE HOOK ---------------- After all other processing, if at least one ref was updated, and if $GIT_DIR/hooks/post-update file exists and is executable, then @@ -216,7 +216,7 @@ if the repository is packed and is served via a dumb transport. exec git update-server-info -Quarantine Environment +QUARANTINE ENVIRONMENT ---------------------- When `receive-pack` takes in objects, they are placed into a temporary diff --git a/Documentation/git-remote-ext.txt b/Documentation/git-remote-ext.txt index b25d0b5996..3fc5d94336 100644 --- a/Documentation/git-remote-ext.txt +++ b/Documentation/git-remote-ext.txt @@ -55,14 +55,14 @@ some tunnel. the vhost field in the git:// service request (to rest of the argument). Default is not to send vhost in such request (if sent). -ENVIRONMENT VARIABLES: ----------------------- +ENVIRONMENT VARIABLES +--------------------- GIT_TRANSLOOP_DEBUG:: If set, prints debugging information about various reads/writes. -ENVIRONMENT VARIABLES PASSED TO COMMAND: ----------------------------------------- +ENVIRONMENT VARIABLES PASSED TO COMMAND +--------------------------------------- GIT_EXT_SERVICE:: Set to long name (git-upload-pack, etc...) of service helper needs @@ -73,8 +73,8 @@ GIT_EXT_SERVICE_NOPREFIX:: to invoke. -EXAMPLES: ---------- +EXAMPLES +-------- This remote helper is transparently used by Git when you use commands such as "git fetch <URL>", "git clone <URL>", , "git push <URL>" or "git remote add <nick> <URL>", where <URL> diff --git a/Documentation/git-remote.txt b/Documentation/git-remote.txt index 4feddc0293..595948da53 100644 --- a/Documentation/git-remote.txt +++ b/Documentation/git-remote.txt @@ -203,7 +203,7 @@ The remote configuration is achieved using the `remote.origin.url` and `remote.origin.fetch` configuration variables. (See linkgit:git-config[1]). -Examples +EXAMPLES -------- * Add a new remote, fetch, and check out a branch from it diff --git a/Documentation/git-repack.txt b/Documentation/git-repack.txt index ae750e9e11..d90e7907f4 100644 --- a/Documentation/git-repack.txt +++ b/Documentation/git-repack.txt @@ -9,7 +9,7 @@ git-repack - Pack unpacked objects in a repository SYNOPSIS -------- [verse] -'git repack' [-a] [-A] [-d] [-f] [-F] [-l] [-n] [-q] [-b] [--window=<n>] [--depth=<n>] [--threads=<n>] +'git repack' [-a] [-A] [-d] [-f] [-F] [-l] [-n] [-q] [-b] [--window=<n>] [--depth=<n>] [--threads=<n>] [--keep-pack=<pack-name>] DESCRIPTION ----------- @@ -90,7 +90,9 @@ other objects in that pack they already have locally. space. `--depth` limits the maximum delta depth; making it too deep affects the performance on the unpacker side, because delta data needs to be applied that many times to get to the necessary object. - The default value for --window is 10 and --depth is 50. ++ +The default value for --window is 10 and --depth is 50. The maximum +depth is 4095. --threads=<n>:: This option is passed through to `git pack-objects`. @@ -133,6 +135,13 @@ other objects in that pack they already have locally. with `-b` or `repack.writeBitmaps`, as it ensures that the bitmapped packfile has the necessary objects. +--keep-pack=<pack-name>:: + Exclude the given pack from repacking. This is the equivalent + of having `.keep` file on the pack. `<pack-name>` is the the + pack file name without leading directory (e.g. `pack-123.pack`). + The option could be specified multiple times to keep multiple + packs. + --unpack-unreachable=<when>:: When loosening unreachable objects, do not bother loosening any objects older than `<when>`. This can be used to optimize out diff --git a/Documentation/git-replace.txt b/Documentation/git-replace.txt index e5c57ae6ef..246dc9943c 100644 --- a/Documentation/git-replace.txt +++ b/Documentation/git-replace.txt @@ -11,6 +11,7 @@ SYNOPSIS 'git replace' [-f] <object> <replacement> 'git replace' [-f] --edit <object> 'git replace' [-f] --graft <commit> [<parent>...] +'git replace' [-f] --convert-graft-file 'git replace' -d <object>... 'git replace' [--format=<format>] [-l [<pattern>]] @@ -87,9 +88,13 @@ OPTIONS content as <commit> except that its parents will be [<parent>...] instead of <commit>'s parents. A replacement ref is then created to replace <commit> with the newly created - commit. See contrib/convert-grafts-to-replace-refs.sh for an - example script based on this option that can convert grafts to - replace refs. + commit. Use `--convert-graft-file` to convert a + `$GIT_DIR/info/grafts` file and use replace refs instead. + +--convert-graft-file:: + Creates graft commits for all entries in `$GIT_DIR/info/grafts` + and deletes that file upon success. The purpose is to help users + with transitioning off of the now-deprecated graft file. -l <pattern>:: --list <pattern>:: diff --git a/Documentation/git-request-pull.txt b/Documentation/git-request-pull.txt index c32cb0bea1..4d4392d0f8 100644 --- a/Documentation/git-request-pull.txt +++ b/Documentation/git-request-pull.txt @@ -46,8 +46,8 @@ ref that is different from the ref you have locally, you can use the its remote name. -EXAMPLE -------- +EXAMPLES +-------- Imagine that you built your work on your `master` branch on top of the `v1.0` release, and want it to be integrated to the project. diff --git a/Documentation/git-send-email.txt b/Documentation/git-send-email.txt index 60cf96f4c1..464c15b94f 100644 --- a/Documentation/git-send-email.txt +++ b/Documentation/git-send-email.txt @@ -458,8 +458,8 @@ sendemail.confirm:: one of 'always', 'never', 'cc', 'compose', or 'auto'. See `--confirm` in the previous section for the meaning of these values. -EXAMPLE -------- +EXAMPLES +-------- Use gmail as the smtp server ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ To use 'git send-email' to send your patches through the GMail SMTP server, diff --git a/Documentation/git-send-pack.txt b/Documentation/git-send-pack.txt index f51c64939b..44fd146b91 100644 --- a/Documentation/git-send-pack.txt +++ b/Documentation/git-send-pack.txt @@ -99,7 +99,7 @@ be in a separate packet, and the list must end with a flush packet. The remote refs to update. -Specifying the Refs +SPECIFYING THE REFS ------------------- There are three ways to specify which refs to update on the diff --git a/Documentation/git-shell.txt b/Documentation/git-shell.txt index 54cf2560be..11361f33e9 100644 --- a/Documentation/git-shell.txt +++ b/Documentation/git-shell.txt @@ -62,8 +62,8 @@ permissions. If a `no-interactive-login` command exists, then it is run and the interactive shell is aborted. -EXAMPLE -------- +EXAMPLES +-------- To disable interactive logins, displaying a greeting instead: diff --git a/Documentation/git-shortlog.txt b/Documentation/git-shortlog.txt index 5e35ea18ac..bc80905a8a 100644 --- a/Documentation/git-shortlog.txt +++ b/Documentation/git-shortlog.txt @@ -8,7 +8,7 @@ git-shortlog - Summarize 'git log' output SYNOPSIS -------- [verse] -'git shortlog' [<options>] [<revision range>] [[\--] <path>...] +'git shortlog' [<options>] [<revision range>] [[--] <path>...] git log --pretty=short | 'git shortlog' [<options>] DESCRIPTION @@ -69,11 +69,11 @@ them. ways to spell <revision range>, see the "Specifying Ranges" section of linkgit:gitrevisions[7]. -[\--] <path>...:: +[--] <path>...:: Consider only commits that are enough to explain how the files that match the specified paths came to be. + -Paths may need to be prefixed with "\-- " to separate them from +Paths may need to be prefixed with `--` to separate them from options or the revision range, when confusion arises. MAPPING AUTHORS diff --git a/Documentation/git-show-branch.txt b/Documentation/git-show-branch.txt index 7818e0f098..262db049d7 100644 --- a/Documentation/git-show-branch.txt +++ b/Documentation/git-show-branch.txt @@ -173,8 +173,8 @@ The "fixes" branch adds one commit "Introduce "reset type" flag to The current branch is "master". -EXAMPLE -------- +EXAMPLES +-------- If you keep your primary branches immediately under `refs/heads`, and topic branches in subdirectories of diff --git a/Documentation/git-show-ref.txt b/Documentation/git-show-ref.txt index c0aa871c9e..d28e6154c6 100644 --- a/Documentation/git-show-ref.txt +++ b/Documentation/git-show-ref.txt @@ -120,8 +120,8 @@ $ git show-ref --heads --hash ... ----------------------------------------------------------------------------- -EXAMPLE -------- +EXAMPLES +-------- To show all references called "master", whether tags or heads or anything else, and regardless of how deep in the reference naming hierarchy they are, diff --git a/Documentation/git-show.txt b/Documentation/git-show.txt index e73ef54017..0e1695df35 100644 --- a/Documentation/git-show.txt +++ b/Documentation/git-show.txt @@ -77,7 +77,7 @@ EXAMPLES Concatenates the contents of said Makefiles in the head of the branch `master`. -Discussion +DISCUSSION ---------- include::i18n.txt[] diff --git a/Documentation/git-submodule.txt b/Documentation/git-submodule.txt index 71c5618e82..630999f41a 100644 --- a/Documentation/git-submodule.txt +++ b/Documentation/git-submodule.txt @@ -213,8 +213,8 @@ sync [--recursive] [--] [<path>...]:: submodule URLs change upstream and you need to update your local repositories accordingly. + -"git submodule sync" synchronizes all submodules while -"git submodule sync \-- A" synchronizes submodule "A" only. +`git submodule sync` synchronizes all submodules while +`git submodule sync -- A` synchronizes submodule "A" only. + If `--recursive` is specified, this command will recurse into the registered submodules, and sync any nested submodules within. diff --git a/Documentation/git-svn.txt b/Documentation/git-svn.txt index d59379ee23..e9615951d2 100644 --- a/Documentation/git-svn.txt +++ b/Documentation/git-svn.txt @@ -707,7 +707,7 @@ creating the branch or tag. config key: svn.useLogAuthor --add-author-from:: - When committing to svn from Git (as part of 'commit-diff', 'set-tree' or 'dcommit' + When committing to svn from Git (as part of 'set-tree' or 'dcommit' operations), if the existing log message doesn't already have a `From:` or `Signed-off-by:` line, append a `From:` line based on the Git commit's author string. If you use this, then `--use-log-author` diff --git a/Documentation/git-update-index.txt b/Documentation/git-update-index.txt index 3897a59ee9..4e8e762e68 100644 --- a/Documentation/git-update-index.txt +++ b/Documentation/git-update-index.txt @@ -228,7 +228,7 @@ will remove the intended effect of the option. cleaner names. The same applies to directories ending '/' and paths with '//' -Using --refresh +USING --REFRESH --------------- `--refresh` does not calculate a new sha1 file or bring the index up to date for mode/content changes. But what it *does* do is to @@ -239,7 +239,7 @@ the stat entry is out of date. For example, you'd want to do this after doing a 'git read-tree', to link up the stat index details with the proper files. -Using --cacheinfo or --info-only +USING --CACHEINFO OR --INFO-ONLY -------------------------------- `--cacheinfo` is used to register a file that is not in the current working directory. This is useful for minimum-checkout @@ -261,7 +261,7 @@ useful when the file is available, but you do not wish to update the object database. -Using --index-info +USING --INDEX-INFO ------------------ `--index-info` is a more powerful mechanism that lets you feed @@ -317,7 +317,7 @@ $ git ls-files -s ------------ -Using ``assume unchanged'' bit +USING ``ASSUME UNCHANGED'' BIT ------------------------------ Many operations in Git depend on your filesystem to have an @@ -350,7 +350,7 @@ the index (use `git update-index --really-refresh` if you want to mark them as "assume unchanged"). -Examples +EXAMPLES -------- To update and refresh only the files already checked out: @@ -387,7 +387,7 @@ M foo.c <9> now it checks with lstat(2) and finds it has been changed. -Skip-worktree bit +SKIP-WORKTREE BIT ----------------- Skip-worktree bit can be defined in one (long) sentence: When reading @@ -407,7 +407,7 @@ Although this bit looks similar to assume-unchanged bit, its goal is different from assume-unchanged bit's. Skip-worktree also takes precedence over assume-unchanged bit when both are set. -Split index +SPLIT INDEX ----------- This mode is designed for repositories with very large indexes, and @@ -432,7 +432,7 @@ To avoid deleting a shared index file that is still used, its modification time is updated to the current time everytime a new split index based on the shared index file is either created or read from. -Untracked cache +UNTRACKED CACHE --------------- This cache is meant to speed up commands that involve determining @@ -490,7 +490,7 @@ As with the bug described above the solution is to one-off do a "git status" run with `core.untrackedCache=false` to flush out the leftover bad data. -File System Monitor +FILE SYSTEM MONITOR ------------------- This feature is intended to speed up git operations for repos that have @@ -518,7 +518,7 @@ file system monitor is added to or removed from the index the next time a command reads the index. When `--[no-]fsmonitor` are used, the file system monitor is immediately added to or removed from the index. -Configuration +CONFIGURATION ------------- The command honors `core.filemode` configuration variable. If diff --git a/Documentation/git-update-ref.txt b/Documentation/git-update-ref.txt index 969bfab2ab..bc8fdfd469 100644 --- a/Documentation/git-update-ref.txt +++ b/Documentation/git-update-ref.txt @@ -120,7 +120,7 @@ modifications are performed. Note that while each individual <ref> is updated or deleted atomically, a concurrent reader may still see a subset of the modifications. -Logging Updates +LOGGING UPDATES --------------- If config parameter "core.logAllRefUpdates" is true and the ref is one under "refs/heads/", "refs/remotes/", "refs/notes/", or the symbolic ref HEAD; or diff --git a/Documentation/git-var.txt b/Documentation/git-var.txt index 44ff9541df..6072f936ab 100644 --- a/Documentation/git-var.txt +++ b/Documentation/git-var.txt @@ -23,14 +23,14 @@ OPTIONS as well. (However, the configuration variables listing functionality is deprecated in favor of `git config -l`.) -EXAMPLE +EXAMPLES -------- $ git var GIT_AUTHOR_IDENT Eric W. Biederman <ebiederm@lnxi.com> 1121223278 -0600 VARIABLES ----------- +--------- GIT_AUTHOR_IDENT:: The author of a piece of code. diff --git a/Documentation/git-web--browse.txt b/Documentation/git-web--browse.txt index 2d6b09a43c..a4ec25b450 100644 --- a/Documentation/git-web--browse.txt +++ b/Documentation/git-web--browse.txt @@ -84,7 +84,7 @@ variable exists then 'git web{litdd}browse' will treat the specified tool as a custom command and will use a shell eval to run the command with the URLs passed as arguments. -Note about konqueror +NOTE ABOUT KONQUEROR -------------------- When 'konqueror' is specified by a command-line option or a diff --git a/Documentation/git-worktree.txt b/Documentation/git-worktree.txt index 2755ca90e3..afc6576a14 100644 --- a/Documentation/git-worktree.txt +++ b/Documentation/git-worktree.txt @@ -14,7 +14,7 @@ SYNOPSIS 'git worktree lock' [--reason <string>] <worktree> 'git worktree move' <worktree> <new-path> 'git worktree prune' [-n] [-v] [--expire <expire>] -'git worktree remove' [--force] <worktree> +'git worktree remove' [-f] <worktree> 'git worktree unlock' <worktree> DESCRIPTION @@ -61,8 +61,13 @@ $ git worktree add --track -b <branch> <path> <remote>/<branch> ------------ + If `<commit-ish>` is omitted and neither `-b` nor `-B` nor `--detach` used, -then, as a convenience, a new branch based at HEAD is created automatically, -as if `-b $(basename <path>)` was specified. +then, as a convenience, the new worktree is associated with a branch +(call it `<branch>`) named after `$(basename <path>)`. If `<branch>` +doesn't exist, a new branch based on HEAD is automatically created as +if `-b <branch>` was given. If `<branch>` does exist, it will be +checked out in the new worktree, if it's not checked out anywhere +else, otherwise the command will refuse to create the worktree (unless +`--force` is used). list:: diff --git a/Documentation/git.txt b/Documentation/git.txt index 4767860e72..c662f41c1d 100644 --- a/Documentation/git.txt +++ b/Documentation/git.txt @@ -11,7 +11,7 @@ SYNOPSIS [verse] 'git' [--version] [--help] [-C <path>] [-c <name>=<value>] [--exec-path[=<path>]] [--html-path] [--man-path] [--info-path] - [-p|--paginate|--no-pager] [--no-replace-objects] [--bare] + [-p|--paginate|-P|--no-pager] [--no-replace-objects] [--bare] [--git-dir=<path>] [--work-tree=<path>] [--namespace=<name>] [--super-prefix=<path>] <command> [<args>] @@ -103,6 +103,7 @@ foo.bar= ...`) sets `foo.bar` to the empty string which `git config configuration options (see the "Configuration Mechanism" section below). +-P:: --no-pager:: Do not pipe Git output into a pager. diff --git a/Documentation/gitattributes.txt b/Documentation/gitattributes.txt index 1094fe2b5b..b72936a885 100644 --- a/Documentation/gitattributes.txt +++ b/Documentation/gitattributes.txt @@ -279,6 +279,94 @@ few exceptions. Even though... catch potential problems early, safety triggers. +`working-tree-encoding` +^^^^^^^^^^^^^^^^^^^^^^^ + +Git recognizes files encoded in ASCII or one of its supersets (e.g. +UTF-8, ISO-8859-1, ...) as text files. Files encoded in certain other +encodings (e.g. UTF-16) are interpreted as binary and consequently +built-in Git text processing tools (e.g. 'git diff') as well as most Git +web front ends do not visualize the contents of these files by default. + +In these cases you can tell Git the encoding of a file in the working +directory with the `working-tree-encoding` attribute. If a file with this +attribute is added to Git, then Git reencodes the content from the +specified encoding to UTF-8. Finally, Git stores the UTF-8 encoded +content in its internal data structure (called "the index"). On checkout +the content is reencoded back to the specified encoding. + +Please note that using the `working-tree-encoding` attribute may have a +number of pitfalls: + +- Alternative Git implementations (e.g. JGit or libgit2) and older Git + versions (as of March 2018) do not support the `working-tree-encoding` + attribute. If you decide to use the `working-tree-encoding` attribute + in your repository, then it is strongly recommended to ensure that all + clients working with the repository support it. + + For example, Microsoft Visual Studio resources files (`*.rc`) or + PowerShell script files (`*.ps1`) are sometimes encoded in UTF-16. + If you declare `*.ps1` as files as UTF-16 and you add `foo.ps1` with + a `working-tree-encoding` enabled Git client, then `foo.ps1` will be + stored as UTF-8 internally. A client without `working-tree-encoding` + support will checkout `foo.ps1` as UTF-8 encoded file. This will + typically cause trouble for the users of this file. + + If a Git client, that does not support the `working-tree-encoding` + attribute, adds a new file `bar.ps1`, then `bar.ps1` will be + stored "as-is" internally (in this example probably as UTF-16). + A client with `working-tree-encoding` support will interpret the + internal contents as UTF-8 and try to convert it to UTF-16 on checkout. + That operation will fail and cause an error. + +- Reencoding content to non-UTF encodings can cause errors as the + conversion might not be UTF-8 round trip safe. If you suspect your + encoding to not be round trip safe, then add it to + `core.checkRoundtripEncoding` to make Git check the round trip + encoding (see linkgit:git-config[1]). SHIFT-JIS (Japanese character + set) is known to have round trip issues with UTF-8 and is checked by + default. + +- Reencoding content requires resources that might slow down certain + Git operations (e.g 'git checkout' or 'git add'). + +Use the `working-tree-encoding` attribute only if you cannot store a file +in UTF-8 encoding and if you want Git to be able to process the content +as text. + +As an example, use the following attributes if your '*.ps1' files are +UTF-16 encoded with byte order mark (BOM) and you want Git to perform +automatic line ending conversion based on your platform. + +------------------------ +*.ps1 text working-tree-encoding=UTF-16 +------------------------ + +Use the following attributes if your '*.ps1' files are UTF-16 little +endian encoded without BOM and you want Git to use Windows line endings +in the working directory. Please note, it is highly recommended to +explicitly define the line endings with `eol` if the `working-tree-encoding` +attribute is used to avoid ambiguity. + +------------------------ +*.ps1 text working-tree-encoding=UTF-16LE eol=CRLF +------------------------ + +You can get a list of all available encodings on your platform with the +following command: + +------------------------ +iconv --list +------------------------ + +If you do not know the encoding of a file, then you can use the `file` +command to guess the encoding: + +------------------------ +file foo.ps1 +------------------------ + + `ident` ^^^^^^^ @@ -1141,8 +1229,8 @@ to: ------------ -EXAMPLE -------- +EXAMPLES +-------- If you have these three `gitattributes` file: diff --git a/Documentation/githooks.txt b/Documentation/githooks.txt index f877f7b7cd..e3c283a174 100644 --- a/Documentation/githooks.txt +++ b/Documentation/githooks.txt @@ -31,7 +31,7 @@ Hooks can get their arguments via the environment, command-line arguments, and stdin. See the documentation for each hook below for details. -'git init' may copy hooks to the new repository, depending on its +`git init` may copy hooks to the new repository, depending on its configuration. See the "TEMPLATE DIRECTORY" section in linkgit:git-init[1] for details. When the rest of this document refers to "default hooks" it's talking about the default template shipped @@ -45,9 +45,9 @@ HOOKS applypatch-msg ~~~~~~~~~~~~~~ -This hook is invoked by 'git am'. It takes a single +This hook is invoked by linkgit:git-am[1]. It takes a single parameter, the name of the file that holds the proposed commit -log message. Exiting with a non-zero status causes 'git am' to abort +log message. Exiting with a non-zero status causes `git am` to abort before applying the patch. The hook is allowed to edit the message file in place, and can @@ -61,7 +61,7 @@ The default 'applypatch-msg' hook, when enabled, runs the pre-applypatch ~~~~~~~~~~~~~~ -This hook is invoked by 'git am'. It takes no parameter, and is +This hook is invoked by linkgit:git-am[1]. It takes no parameter, and is invoked after the patch is applied, but before a commit is made. If it exits with non-zero status, then the working tree will not be @@ -76,33 +76,33 @@ The default 'pre-applypatch' hook, when enabled, runs the post-applypatch ~~~~~~~~~~~~~~~ -This hook is invoked by 'git am'. It takes no parameter, +This hook is invoked by linkgit:git-am[1]. It takes no parameter, and is invoked after the patch is applied and a commit is made. This hook is meant primarily for notification, and cannot affect -the outcome of 'git am'. +the outcome of `git am`. pre-commit ~~~~~~~~~~ -This hook is invoked by 'git commit', and can be bypassed +This hook is invoked by linkgit:git-commit[1], and can be bypassed with the `--no-verify` option. It takes no parameters, and is invoked before obtaining the proposed commit log message and making a commit. Exiting with a non-zero status from this script -causes the 'git commit' command to abort before creating a commit. +causes the `git commit` command to abort before creating a commit. The default 'pre-commit' hook, when enabled, catches introduction of lines with trailing whitespaces and aborts the commit when such a line is found. -All the 'git commit' hooks are invoked with the environment +All the `git commit` hooks are invoked with the environment variable `GIT_EDITOR=:` if the command will not bring up an editor to modify the commit message. prepare-commit-msg ~~~~~~~~~~~~~~~~~~ -This hook is invoked by 'git commit' right after preparing the +This hook is invoked by linkgit:git-commit[1] right after preparing the default log message, and before the editor is started. It takes one to three parameters. The first is the name of the file @@ -114,7 +114,7 @@ commit is a merge or a `.git/MERGE_MSG` file exists); `squash` (if a `.git/SQUASH_MSG` file exists); or `commit`, followed by a commit SHA-1 (if a `-c`, `-C` or `--amend` option was given). -If the exit status is non-zero, 'git commit' will abort. +If the exit status is non-zero, `git commit` will abort. The purpose of the hook is to edit the message file in place, and it is not suppressed by the `--no-verify` option. A non-zero exit @@ -127,7 +127,7 @@ help message found in the commented portion of the commit template. commit-msg ~~~~~~~~~~ -This hook is invoked by 'git commit' and 'git merge', and can be +This hook is invoked by linkgit:git-commit[1] and linkgit:git-merge[1], and can be bypassed with the `--no-verify` option. It takes a single parameter, the name of the file that holds the proposed commit log message. Exiting with a non-zero status causes the command to abort. @@ -143,16 +143,16 @@ The default 'commit-msg' hook, when enabled, detects duplicate post-commit ~~~~~~~~~~~ -This hook is invoked by 'git commit'. It takes no parameters, and is +This hook is invoked by linkgit:git-commit[1]. It takes no parameters, and is invoked after a commit is made. This hook is meant primarily for notification, and cannot affect -the outcome of 'git commit'. +the outcome of `git commit`. pre-rebase ~~~~~~~~~~ -This hook is called by 'git rebase' and can be used to prevent a +This hook is called by linkgit:git-rebase[1] and can be used to prevent a branch from getting rebased. The hook may be called with one or two parameters. The first parameter is the upstream from which the series was forked. The second parameter is the branch being @@ -161,17 +161,17 @@ rebased, and is not set when rebasing the current branch. post-checkout ~~~~~~~~~~~~~ -This hook is invoked when a 'git checkout' is run after having updated the +This hook is invoked when a linkgit:git-checkout[1] is run after having updated the worktree. The hook is given three parameters: the ref of the previous HEAD, the ref of the new HEAD (which may or may not have changed), and a flag indicating whether the checkout was a branch checkout (changing branches, flag=1) or a file checkout (retrieving a file from the index, flag=0). -This hook cannot affect the outcome of 'git checkout'. +This hook cannot affect the outcome of `git checkout`. -It is also run after 'git clone', unless the --no-checkout (-n) option is +It is also run after linkgit:git-clone[1], unless the `--no-checkout` (`-n`) option is used. The first parameter given to the hook is the null-ref, the second the -ref of the new HEAD and the flag is always 1. Likewise for 'git worktree add' -unless --no-checkout is used. +ref of the new HEAD and the flag is always 1. Likewise for `git worktree add` +unless `--no-checkout` is used. This hook can be used to perform repository validity checks, auto-display differences from the previous HEAD if different, or set working dir metadata @@ -180,10 +180,10 @@ properties. post-merge ~~~~~~~~~~ -This hook is invoked by 'git merge', which happens when a 'git pull' +This hook is invoked by linkgit:git-merge[1], which happens when a `git pull` is done on a local repository. The hook takes a single parameter, a status flag specifying whether or not the merge being done was a squash merge. -This hook cannot affect the outcome of 'git merge' and is not executed, +This hook cannot affect the outcome of `git merge` and is not executed, if the merge failed due to conflicts. This hook can be used in conjunction with a corresponding pre-commit hook to @@ -194,10 +194,10 @@ for an example of how to do this. pre-push ~~~~~~~~ -This hook is called by 'git push' and can be used to prevent a push from taking -place. The hook is called with two parameters which provide the name and -location of the destination remote, if a named remote is not being used both -values will be the same. +This hook is called by linkgit:git-push[1] and can be used to prevent +a push from taking place. The hook is called with two parameters +which provide the name and location of the destination remote, if a +named remote is not being used both values will be the same. Information about what is to be pushed is provided on the hook's standard input with lines of the form: @@ -216,7 +216,7 @@ SHA-1>` will be 40 `0`. If the local commit was specified by something other than a name which could be expanded (such as `HEAD~`, or a SHA-1) it will be supplied as it was originally given. -If this hook exits with a non-zero status, 'git push' will abort without +If this hook exits with a non-zero status, `git push` will abort without pushing anything. Information about why the push is rejected may be sent to the user by writing to standard error. @@ -224,8 +224,8 @@ to the user by writing to standard error. pre-receive ~~~~~~~~~~~ -This hook is invoked by 'git-receive-pack' when it reacts to -'git push' and updates reference(s) in its repository. +This hook is invoked by linkgit:git-receive-pack[1] when it reacts to +`git push` and updates reference(s) in its repository. Just before starting to update refs on the remote repository, the pre-receive hook is invoked. Its exit status determines the success or failure of the update. @@ -246,7 +246,7 @@ updated. If the hook exits with zero, updating of individual refs can still be prevented by the <<update,'update'>> hook. Both standard output and standard error output are forwarded to -'git send-pack' on the other end, so you can simply `echo` messages +`git send-pack` on the other end, so you can simply `echo` messages for the user. The number of push options given on the command line of @@ -265,8 +265,8 @@ linkgit:git-receive-pack[1] for some caveats. update ~~~~~~ -This hook is invoked by 'git-receive-pack' when it reacts to -'git push' and updates reference(s) in its repository. +This hook is invoked by linkgit:git-receive-pack[1] when it reacts to +`git push` and updates reference(s) in its repository. Just before updating the ref on the remote repository, the update hook is invoked. Its exit status determines the success or failure of the ref update. @@ -279,7 +279,7 @@ three parameters: - and the new object name to be stored in the ref. A zero exit from the update hook allows the ref to be updated. -Exiting with a non-zero status prevents 'git-receive-pack' +Exiting with a non-zero status prevents `git receive-pack` from updating that ref. This hook can be used to prevent 'forced' update on certain refs by @@ -299,7 +299,7 @@ membership. See linkgit:git-shell[1] for how you might use the login shell to restrict the user's access to only git commands. Both standard output and standard error output are forwarded to -'git send-pack' on the other end, so you can simply `echo` messages +`git send-pack` on the other end, so you can simply `echo` messages for the user. The default 'update' hook, when enabled--and with @@ -310,8 +310,8 @@ unannotated tags to be pushed. post-receive ~~~~~~~~~~~~ -This hook is invoked by 'git-receive-pack' when it reacts to -'git push' and updates reference(s) in its repository. +This hook is invoked by linkgit:git-receive-pack[1] when it reacts to +`git push` and updates reference(s) in its repository. It executes on the remote repository once after all the refs have been updated. @@ -320,7 +320,7 @@ arguments, but gets the same information as the <<pre-receive,'pre-receive'>> hook does on its standard input. -This hook does not affect the outcome of 'git-receive-pack', as it +This hook does not affect the outcome of `git receive-pack`, as it is called after the real work is done. This supersedes the <<post-update,'post-update'>> hook in that it gets @@ -328,7 +328,7 @@ both old and new values of all the refs in addition to their names. Both standard output and standard error output are forwarded to -'git send-pack' on the other end, so you can simply `echo` messages +`git send-pack` on the other end, so you can simply `echo` messages for the user. The default 'post-receive' hook is empty, but there is @@ -349,8 +349,8 @@ will be set to zero, `GIT_PUSH_OPTION_COUNT=0`. post-update ~~~~~~~~~~~ -This hook is invoked by 'git-receive-pack' when it reacts to -'git push' and updates reference(s) in its repository. +This hook is invoked by linkgit:git-receive-pack[1] when it reacts to +`git push` and updates reference(s) in its repository. It executes on the remote repository once after all the refs have been updated. @@ -358,7 +358,7 @@ It takes a variable number of parameters, each of which is the name of ref that was actually updated. This hook is meant primarily for notification, and cannot affect -the outcome of 'git-receive-pack'. +the outcome of `git receive-pack`. The 'post-update' hook can tell what are the heads that were pushed, but it does not know what their original and updated values are, @@ -368,20 +368,20 @@ updated values of the refs. You might consider it instead if you need them. When enabled, the default 'post-update' hook runs -'git update-server-info' to keep the information used by dumb +`git update-server-info` to keep the information used by dumb transports (e.g., HTTP) up to date. If you are publishing a Git repository that is accessible via HTTP, you should probably enable this hook. Both standard output and standard error output are forwarded to -'git send-pack' on the other end, so you can simply `echo` messages +`git send-pack` on the other end, so you can simply `echo` messages for the user. push-to-checkout ~~~~~~~~~~~~~~~~ -This hook is invoked by 'git-receive-pack' when it reacts to -'git push' and updates reference(s) in its repository, and when +This hook is invoked by linkgit:git-receive-pack[1] when it reacts to +`git push` and updates reference(s) in its repository, and when the push tries to update the branch that is currently checked out and the `receive.denyCurrentBranch` configuration variable is set to `updateInstead`. Such a push by default is refused if the working @@ -400,8 +400,8 @@ when the tip of the current branch is updated to the new commit, and exit with a zero status. For example, the hook can simply run `git read-tree -u -m HEAD "$1"` -in order to emulate 'git fetch' that is run in the reverse direction -with `git push`, as the two-tree form of `read-tree -u -m` is +in order to emulate `git fetch` that is run in the reverse direction +with `git push`, as the two-tree form of `git read-tree -u -m` is essentially the same as `git checkout` that switches branches while keeping the local changes in the working tree that do not interfere with the difference between the branches. @@ -410,15 +410,16 @@ with the difference between the branches. pre-auto-gc ~~~~~~~~~~~ -This hook is invoked by 'git gc --auto'. It takes no parameter, and -exiting with non-zero status from this script causes the 'git gc --auto' -to abort. +This hook is invoked by `git gc --auto` (see linkgit:git-gc[1]). It +takes no parameter, and exiting with non-zero status from this script +causes the `git gc --auto` to abort. post-rewrite ~~~~~~~~~~~~ -This hook is invoked by commands that rewrite commits (`git commit ---amend`, 'git-rebase'; currently 'git-filter-branch' does 'not' call +This hook is invoked by commands that rewrite commits +(linkgit:git-commit[1] when called with `--amend` and +linkgit:git-rebase[1]; currently `git filter-branch` does 'not' call it!). Its first argument denotes the command it was invoked by: currently one of `amend` or `rebase`. Further command-dependent arguments may be passed in the future. @@ -450,16 +451,16 @@ processed by rebase. sendemail-validate ~~~~~~~~~~~~~~~~~~ -This hook is invoked by 'git send-email'. It takes a single parameter, +This hook is invoked by linkgit:git-send-email[1]. It takes a single parameter, the name of the file that holds the e-mail to be sent. Exiting with a -non-zero status causes 'git send-email' to abort before sending any +non-zero status causes `git send-email` to abort before sending any e-mails. fsmonitor-watchman ~~~~~~~~~~~~~~~~~~ -This hook is invoked when the configuration option core.fsmonitor is -set to .git/hooks/fsmonitor-watchman. It takes two arguments, a version +This hook is invoked when the configuration option `core.fsmonitor` is +set to `.git/hooks/fsmonitor-watchman`. It takes two arguments, a version (currently 1) and the time in elapsed nanoseconds since midnight, January 1, 1970. @@ -478,7 +479,7 @@ directories are checked for untracked files based on the path names given. An optimized way to tell git "all files have changed" is to return -the filename '/'. +the filename `/`. The exit status determines whether git will use the data from the hook to limit its search. On error, it will fall back to verifying diff --git a/Documentation/gitk.txt b/Documentation/gitk.txt index ca96c281d1..244cd01493 100644 --- a/Documentation/gitk.txt +++ b/Documentation/gitk.txt @@ -8,7 +8,7 @@ gitk - The Git repository browser SYNOPSIS -------- [verse] -'gitk' [<options>] [<revision range>] [\--] [<path>...] +'gitk' [<options>] [<revision range>] [--] [<path>...] DESCRIPTION ----------- diff --git a/Documentation/gitremote-helpers.txt b/Documentation/gitremote-helpers.txt index 4b8c93ec59..9d1459aac6 100644 --- a/Documentation/gitremote-helpers.txt +++ b/Documentation/gitremote-helpers.txt @@ -102,6 +102,14 @@ Capabilities for Pushing + Supported commands: 'connect'. +'stateless-connect':: + Experimental; for internal use only. + Can attempt to connect to a remote server for communication + using git's wire-protocol version 2. See the documentation + for the stateless-connect command for more information. ++ +Supported commands: 'stateless-connect'. + 'push':: Can discover remote refs and push local commits and the history leading up to them to new or existing remote refs. @@ -136,6 +144,14 @@ Capabilities for Fetching + Supported commands: 'connect'. +'stateless-connect':: + Experimental; for internal use only. + Can attempt to connect to a remote server for communication + using git's wire-protocol version 2. See the documentation + for the stateless-connect command for more information. ++ +Supported commands: 'stateless-connect'. + 'fetch':: Can discover remote refs and transfer objects reachable from them to the local object store. @@ -375,6 +391,22 @@ Supported if the helper has the "export" capability. + Supported if the helper has the "connect" capability. +'stateless-connect' <service>:: + Experimental; for internal use only. + Connects to the given remote service for communication using + git's wire-protocol version 2. Valid replies to this command + are empty line (connection established), 'fallback' (no smart + transport support, fall back to dumb transports) and just + exiting with error message printed (can't connect, don't bother + trying to fall back). After line feed terminating the positive + (empty) response, the output of the service starts. Messages + (both request and response) must consist of zero or more + PKT-LINEs, terminating in a flush packet. The client must not + expect the server to store any state in between request-response + pairs. After the connection ends, the remote helper exits. ++ +Supported if the helper has the "stateless-connect" capability. + If a fatal error occurs, the program writes the error message to stderr and exits. The caller should expect that a suitable error message has been printed if the child closes the connection without diff --git a/Documentation/glossary-content.txt b/Documentation/glossary-content.txt index 6b8888d123..6c2d23dc48 100644 --- a/Documentation/glossary-content.txt +++ b/Documentation/glossary-content.txt @@ -463,7 +463,7 @@ exclude;; [[def_push]]push:: Pushing a <<def_branch,branch>> means to get the branch's <<def_head_ref,head ref>> from a remote <<def_repository,repository>>, - find out if it is a direct ancestor to the branch's local + find out if it is an ancestor to the branch's local head ref, and in that case, putting all objects, which are <<def_reachable,reachable>> from the local head ref, and which are missing from the remote diff --git a/Documentation/merge-config.txt b/Documentation/merge-config.txt index 12b6bbf591..662c2713ca 100644 --- a/Documentation/merge-config.txt +++ b/Documentation/merge-config.txt @@ -35,7 +35,13 @@ include::fmt-merge-msg-config.txt[] merge.renameLimit:: The number of files to consider when performing rename detection during a merge; if not specified, defaults to the value of - diff.renameLimit. + diff.renameLimit. This setting has no effect if rename detection + is turned off. + +merge.renames:: + Whether and how Git detects renames. If set to "false", + rename detection is disabled. If set to "true", basic rename + detection is enabled. Defaults to the value of diff.renames. merge.renormalize:: Tell Git that canonical representation of files in the diff --git a/Documentation/merge-strategies.txt b/Documentation/merge-strategies.txt index 4a58aad4b8..aa66cbe41e 100644 --- a/Documentation/merge-strategies.txt +++ b/Documentation/merge-strategies.txt @@ -23,8 +23,9 @@ recursive:: causing mismerges by tests done on actual merge commits taken from Linux 2.6 kernel development history. Additionally this can detect and handle merges involving - renames. This is the default merge strategy when - pulling or merging one branch. + renames, but currently cannot make use of detected + copies. This is the default merge strategy when pulling + or merging one branch. + The 'recursive' strategy can take the following options: @@ -84,12 +85,14 @@ no-renormalize;; `merge.renormalize` configuration variable. no-renames;; - Turn off rename detection. + Turn off rename detection. This overrides the `merge.renames` + configuration variable. See also linkgit:git-diff[1] `--no-renames`. find-renames[=<n>];; Turn on rename detection, optionally setting the similarity - threshold. This is the default. + threshold. This is the default. This overrides the + 'merge.renames' configuration variable. See also linkgit:git-diff[1] `--find-renames`. rename-threshold=<n>;; diff --git a/Documentation/revisions.txt b/Documentation/revisions.txt index dfcc49c72c..7d1bd44094 100644 --- a/Documentation/revisions.txt +++ b/Documentation/revisions.txt @@ -7,6 +7,10 @@ syntax. Here are various ways to spell object names. The ones listed near the end of this list name trees and blobs contained in a commit. +NOTE: This document shows the "raw" syntax as seen by git. The shell +and other UIs might require additional quoting to protect special +characters and to avoid word splitting. + '<sha1>', e.g. 'dae86e1950b1277e545cee180551750029cfe735', 'dae86e':: The full SHA-1 object name (40-byte hexadecimal string), or a leading substring that is unique within the repository. @@ -186,6 +190,8 @@ existing tag object. is matched. ':/!-foo' performs a negative match, while ':/!!foo' matches a literal '!' character, followed by 'foo'. Any other sequence beginning with ':/!' is reserved for now. + Depending on the given text, the shell's word splitting rules might + require additional quoting. '<rev>:<path>', e.g. 'HEAD:README', ':README', 'master:./README':: A suffix ':' followed by a path names the blob or tree @@ -345,6 +351,7 @@ Here are a handful of examples using the Loeliger illustration above, with each step in the notation's expansion and selection carefully spelt out: +.... Args Expanded arguments Selected commits D G H D D F G H I J D F @@ -367,3 +374,4 @@ spelt out: = B ^B^1 ^B^2 ^B^3 = B ^D ^E ^F B F^! D = F ^I ^J D G H D F +.... diff --git a/Documentation/technical/api-config.txt b/Documentation/technical/api-config.txt index 9a778b0cad..fa39ac9d71 100644 --- a/Documentation/technical/api-config.txt +++ b/Documentation/technical/api-config.txt @@ -47,21 +47,23 @@ will first feed the user-wide one to the callback, and then the repo-specific one; by overwriting, the higher-priority repo-specific value is left at the end). -The `git_config_with_options` function lets the caller examine config +The `config_with_options` function lets the caller examine config while adjusting some of the default behavior of `git_config`. It should almost never be used by "regular" Git code that is looking up configuration variables. It is intended for advanced callers like `git-config`, which are intentionally tweaking the normal config-lookup process. It takes two extra parameters: -`filename`:: -If this parameter is non-NULL, it specifies the name of a file to -parse for configuration, rather than looking in the usual files. Regular -`git_config` defaults to `NULL`. +`config_source`:: +If this parameter is non-NULL, it specifies the source to parse for +configuration, rather than looking in the usual files. See `struct +git_config_source` in `config.h` for details. Regular `git_config` defaults +to `NULL`. -`respect_includes`:: -Specify whether include directives should be followed in parsed files. -Regular `git_config` defaults to `1`. +`opts`:: +Specify options to adjust the behavior of parsing config files. See `struct +config_options` in `config.h` for details. As an example: regular `git_config` +sets `opts.respect_includes` to `1` by default. Reading Specific Files ---------------------- diff --git a/Documentation/technical/api-submodule-config.txt b/Documentation/technical/api-submodule-config.txt index ee907c4a82..fb06089393 100644 --- a/Documentation/technical/api-submodule-config.txt +++ b/Documentation/technical/api-submodule-config.txt @@ -38,7 +38,7 @@ Data Structures Functions --------- -`void submodule_free()`:: +`void submodule_free(struct repository *r)`:: Use these to free the internally cached values. diff --git a/Documentation/technical/commit-graph-format.txt b/Documentation/technical/commit-graph-format.txt new file mode 100644 index 0000000000..ad6af8105c --- /dev/null +++ b/Documentation/technical/commit-graph-format.txt @@ -0,0 +1,97 @@ +Git commit graph format +======================= + +The Git commit graph stores a list of commit OIDs and some associated +metadata, including: + +- The generation number of the commit. Commits with no parents have + generation number 1; commits with parents have generation number + one more than the maximum generation number of its parents. We + reserve zero as special, and can be used to mark a generation + number invalid or as "not computed". + +- The root tree OID. + +- The commit date. + +- The parents of the commit, stored using positional references within + the graph file. + +These positional references are stored as unsigned 32-bit integers +corresponding to the array position withing the list of commit OIDs. We +use the most-significant bit for special purposes, so we can store at most +(1 << 31) - 1 (around 2 billion) commits. + +== Commit graph files have the following format: + +In order to allow extensions that add extra data to the graph, we organize +the body into "chunks" and provide a binary lookup table at the beginning +of the body. The header includes certain values, such as number of chunks +and hash type. + +All 4-byte numbers are in network order. + +HEADER: + + 4-byte signature: + The signature is: {'C', 'G', 'P', 'H'} + + 1-byte version number: + Currently, the only valid version is 1. + + 1-byte Hash Version (1 = SHA-1) + We infer the hash length (H) from this value. + + 1-byte number (C) of "chunks" + + 1-byte (reserved for later use) + Current clients should ignore this value. + +CHUNK LOOKUP: + + (C + 1) * 12 bytes listing the table of contents for the chunks: + First 4 bytes describe the chunk id. Value 0 is a terminating label. + Other 8 bytes provide the byte-offset in current file for chunk to + start. (Chunks are ordered contiguously in the file, so you can infer + the length using the next chunk position if necessary.) Each chunk + ID appears at most once. + + The remaining data in the body is described one chunk at a time, and + these chunks may be given in any order. Chunks are required unless + otherwise specified. + +CHUNK DATA: + + OID Fanout (ID: {'O', 'I', 'D', 'F'}) (256 * 4 bytes) + The ith entry, F[i], stores the number of OIDs with first + byte at most i. Thus F[255] stores the total + number of commits (N). + + OID Lookup (ID: {'O', 'I', 'D', 'L'}) (N * H bytes) + The OIDs for all commits in the graph, sorted in ascending order. + + Commit Data (ID: {'C', 'G', 'E', 'T' }) (N * (H + 16) bytes) + * The first H bytes are for the OID of the root tree. + * The next 8 bytes are for the positions of the first two parents + of the ith commit. Stores value 0xffffffff if no parent in that + position. If there are more than two parents, the second value + has its most-significant bit on and the other bits store an array + position into the Large Edge List chunk. + * The next 8 bytes store the generation number of the commit and + the commit time in seconds since EPOCH. The generation number + uses the higher 30 bits of the first 4 bytes, while the commit + time uses the 32 bits of the second 4 bytes, along with the lowest + 2 bits of the lowest byte, storing the 33rd and 34th bit of the + commit time. + + Large Edge List (ID: {'E', 'D', 'G', 'E'}) [Optional] + This list of 4-byte values store the second through nth parents for + all octopus merges. The second parent value in the commit data stores + an array position within this list along with the most-significant bit + on. Starting at that array position, iterate through this list of commit + positions for the parents until reaching a value with the most-significant + bit on. The other bits correspond to the position of the last parent. + +TRAILER: + + H-byte HASH-checksum of all of the above. diff --git a/Documentation/technical/commit-graph.txt b/Documentation/technical/commit-graph.txt new file mode 100644 index 0000000000..0550c6d0dc --- /dev/null +++ b/Documentation/technical/commit-graph.txt @@ -0,0 +1,163 @@ +Git Commit Graph Design Notes +============================= + +Git walks the commit graph for many reasons, including: + +1. Listing and filtering commit history. +2. Computing merge bases. + +These operations can become slow as the commit count grows. The merge +base calculation shows up in many user-facing commands, such as 'merge-base' +or 'status' and can take minutes to compute depending on history shape. + +There are two main costs here: + +1. Decompressing and parsing commits. +2. Walking the entire graph to satisfy topological order constraints. + +The commit graph file is a supplemental data structure that accelerates +commit graph walks. If a user downgrades or disables the 'core.commitGraph' +config setting, then the existing ODB is sufficient. The file is stored +as "commit-graph" either in the .git/objects/info directory or in the info +directory of an alternate. + +The commit graph file stores the commit graph structure along with some +extra metadata to speed up graph walks. By listing commit OIDs in lexi- +cographic order, we can identify an integer position for each commit and +refer to the parents of a commit using those integer positions. We use +binary search to find initial commits and then use the integer positions +for fast lookups during the walk. + +A consumer may load the following info for a commit from the graph: + +1. The commit OID. +2. The list of parents, along with their integer position. +3. The commit date. +4. The root tree OID. +5. The generation number (see definition below). + +Values 1-4 satisfy the requirements of parse_commit_gently(). + +Define the "generation number" of a commit recursively as follows: + + * A commit with no parents (a root commit) has generation number one. + + * A commit with at least one parent has generation number one more than + the largest generation number among its parents. + +Equivalently, the generation number of a commit A is one more than the +length of a longest path from A to a root commit. The recursive definition +is easier to use for computation and observing the following property: + + If A and B are commits with generation numbers N and M, respectively, + and N <= M, then A cannot reach B. That is, we know without searching + that B is not an ancestor of A because it is further from a root commit + than A. + + Conversely, when checking if A is an ancestor of B, then we only need + to walk commits until all commits on the walk boundary have generation + number at most N. If we walk commits using a priority queue seeded by + generation numbers, then we always expand the boundary commit with highest + generation number and can easily detect the stopping condition. + +This property can be used to significantly reduce the time it takes to +walk commits and determine topological relationships. Without generation +numbers, the general heuristic is the following: + + If A and B are commits with commit time X and Y, respectively, and + X < Y, then A _probably_ cannot reach B. + +This heuristic is currently used whenever the computation is allowed to +violate topological relationships due to clock skew (such as "git log" +with default order), but is not used when the topological order is +required (such as merge base calculations, "git log --graph"). + +In practice, we expect some commits to be created recently and not stored +in the commit graph. We can treat these commits as having "infinite" +generation number and walk until reaching commits with known generation +number. + +Design Details +-------------- + +- The commit graph file is stored in a file named 'commit-graph' in the + .git/objects/info directory. This could be stored in the info directory + of an alternate. + +- The core.commitGraph config setting must be on to consume graph files. + +- The file format includes parameters for the object ID hash function, + so a future change of hash algorithm does not require a change in format. + +Future Work +----------- + +- The commit graph feature currently does not honor commit grafts. This can + be remedied by duplicating or refactoring the current graft logic. + +- The 'commit-graph' subcommand does not have a "verify" mode that is + necessary for integration with fsck. + +- The file format includes room for precomputed generation numbers. These + are not currently computed, so all generation numbers will be marked as + 0 (or "uncomputed"). A later patch will include this calculation. + +- After computing and storing generation numbers, we must make graph + walks aware of generation numbers to gain the performance benefits they + enable. This will mostly be accomplished by swapping a commit-date-ordered + priority queue with one ordered by generation number. The following + operations are important candidates: + + - paint_down_to_common() + - 'log --topo-order' + +- Currently, parse_commit_gently() requires filling in the root tree + object for a commit. This passes through lookup_tree() and consequently + lookup_object(). Also, it calls lookup_commit() when loading the parents. + These method calls check the ODB for object existence, even if the + consumer does not need the content. For example, we do not need the + tree contents when computing merge bases. Now that commit parsing is + removed from the computation time, these lookup operations are the + slowest operations keeping graph walks from being fast. Consider + loading these objects without verifying their existence in the ODB and + only loading them fully when consumers need them. Consider a method + such as "ensure_tree_loaded(commit)" that fully loads a tree before + using commit->tree. + +- The current design uses the 'commit-graph' subcommand to generate the graph. + When this feature stabilizes enough to recommend to most users, we should + add automatic graph writes to common operations that create many commits. + For example, one could compute a graph on 'clone', 'fetch', or 'repack' + commands. + +- A server could provide a commit graph file as part of the network protocol + to avoid extra calculations by clients. This feature is only of benefit if + the user is willing to trust the file, because verifying the file is correct + is as hard as computing it from scratch. + +Related Links +------------- +[0] https://bugs.chromium.org/p/git/issues/detail?id=8 + Chromium work item for: Serialized Commit Graph + +[1] https://public-inbox.org/git/20110713070517.GC18566@sigill.intra.peff.net/ + An abandoned patch that introduced generation numbers. + +[2] https://public-inbox.org/git/20170908033403.q7e6dj7benasrjes@sigill.intra.peff.net/ + Discussion about generation numbers on commits and how they interact + with fsck. + +[3] https://public-inbox.org/git/20170908034739.4op3w4f2ma5s65ku@sigill.intra.peff.net/ + More discussion about generation numbers and not storing them inside + commit objects. A valuable quote: + + "I think we should be moving more in the direction of keeping + repo-local caches for optimizations. Reachability bitmaps have been + a big performance win. I think we should be doing the same with our + properties of commits. Not just generation numbers, but making it + cheap to access the graph structure without zlib-inflating whole + commit objects (i.e., packv4 or something like the "metapacks" I + proposed a few years ago)." + +[4] https://public-inbox.org/git/20180108154822.54829-1-git@jeffhostetler.com/T/#u + A patch to remove the ahead-behind calculation from 'status'. diff --git a/Documentation/technical/pack-format.txt b/Documentation/technical/pack-format.txt index 8e5bf60be3..70a99fd142 100644 --- a/Documentation/technical/pack-format.txt +++ b/Documentation/technical/pack-format.txt @@ -36,6 +36,98 @@ Git pack format - The trailer records 20-byte SHA-1 checksum of all of the above. +=== Object types + +Valid object types are: + +- OBJ_COMMIT (1) +- OBJ_TREE (2) +- OBJ_BLOB (3) +- OBJ_TAG (4) +- OBJ_OFS_DELTA (6) +- OBJ_REF_DELTA (7) + +Type 5 is reserved for future expansion. Type 0 is invalid. + +=== Deltified representation + +Conceptually there are only four object types: commit, tree, tag and +blob. However to save space, an object could be stored as a "delta" of +another "base" object. These representations are assigned new types +ofs-delta and ref-delta, which is only valid in a pack file. + +Both ofs-delta and ref-delta store the "delta" to be applied to +another object (called 'base object') to reconstruct the object. The +difference between them is, ref-delta directly encodes 20-byte base +object name. If the base object is in the same pack, ofs-delta encodes +the offset of the base object in the pack instead. + +The base object could also be deltified if it's in the same pack. +Ref-delta can also refer to an object outside the pack (i.e. the +so-called "thin pack"). When stored on disk however, the pack should +be self contained to avoid cyclic dependency. + +The delta data is a sequence of instructions to reconstruct an object +from the base object. If the base object is deltified, it must be +converted to canonical form first. Each instruction appends more and +more data to the target object until it's complete. There are two +supported instructions so far: one for copy a byte range from the +source object and one for inserting new data embedded in the +instruction itself. + +Each instruction has variable length. Instruction type is determined +by the seventh bit of the first octet. The following diagrams follow +the convention in RFC 1951 (Deflate compressed data format). + +==== Instruction to copy from base object + + +----------+---------+---------+---------+---------+-------+-------+-------+ + | 1xxxxxxx | offset1 | offset2 | offset3 | offset4 | size1 | size2 | size3 | + +----------+---------+---------+---------+---------+-------+-------+-------+ + +This is the instruction format to copy a byte range from the source +object. It encodes the offset to copy from and the number of bytes to +copy. Offset and size are in little-endian order. + +All offset and size bytes are optional. This is to reduce the +instruction size when encoding small offsets or sizes. The first seven +bits in the first octet determines which of the next seven octets is +present. If bit zero is set, offset1 is present. If bit one is set +offset2 is present and so on. + +Note that a more compact instruction does not change offset and size +encoding. For example, if only offset2 is omitted like below, offset3 +still contains bits 16-23. It does not become offset2 and contains +bits 8-15 even if it's right next to offset1. + + +----------+---------+---------+ + | 10000101 | offset1 | offset3 | + +----------+---------+---------+ + +In its most compact form, this instruction only takes up one byte +(0x80) with both offset and size omitted, which will have default +values zero. There is another exception: size zero is automatically +converted to 0x10000. + +==== Instruction to add new data + + +----------+============+ + | 0xxxxxxx | data | + +----------+============+ + +This is the instruction to construct target object without the base +object. The following data is appended to the target object. The first +seven bits of the first octet determines the size of data in +bytes. The size must be non-zero. + +==== Reserved instruction + + +----------+============ + | 00000000 | + +----------+============ + +This is the instruction reserved for future expansion. + == Original (version 1) pack-*.idx files have the following format: - The header consists of 256 4-byte network byte order diff --git a/Documentation/technical/protocol-v2.txt b/Documentation/technical/protocol-v2.txt new file mode 100644 index 0000000000..d7b6f38e0a --- /dev/null +++ b/Documentation/technical/protocol-v2.txt @@ -0,0 +1,405 @@ + Git Wire Protocol, Version 2 +============================== + +This document presents a specification for a version 2 of Git's wire +protocol. Protocol v2 will improve upon v1 in the following ways: + + * Instead of multiple service names, multiple commands will be + supported by a single service + * Easily extendable as capabilities are moved into their own section + of the protocol, no longer being hidden behind a NUL byte and + limited by the size of a pkt-line + * Separate out other information hidden behind NUL bytes (e.g. agent + string as a capability and symrefs can be requested using 'ls-refs') + * Reference advertisement will be omitted unless explicitly requested + * ls-refs command to explicitly request some refs + * Designed with http and stateless-rpc in mind. With clear flush + semantics the http remote helper can simply act as a proxy + +In protocol v2 communication is command oriented. When first contacting a +server a list of capabilities will advertised. Some of these capabilities +will be commands which a client can request be executed. Once a command +has completed, a client can reuse the connection and request that other +commands be executed. + + Packet-Line Framing +--------------------- + +All communication is done using packet-line framing, just as in v1. See +`Documentation/technical/pack-protocol.txt` and +`Documentation/technical/protocol-common.txt` for more information. + +In protocol v2 these special packets will have the following semantics: + + * '0000' Flush Packet (flush-pkt) - indicates the end of a message + * '0001' Delimiter Packet (delim-pkt) - separates sections of a message + + Initial Client Request +------------------------ + +In general a client can request to speak protocol v2 by sending +`version=2` through the respective side-channel for the transport being +used which inevitably sets `GIT_PROTOCOL`. More information can be +found in `pack-protocol.txt` and `http-protocol.txt`. In all cases the +response from the server is the capability advertisement. + + Git Transport +~~~~~~~~~~~~~~~ + +When using the git:// transport, you can request to use protocol v2 by +sending "version=2" as an extra parameter: + + 003egit-upload-pack /project.git\0host=myserver.com\0\0version=2\0 + + SSH and File Transport +~~~~~~~~~~~~~~~~~~~~~~~~ + +When using either the ssh:// or file:// transport, the GIT_PROTOCOL +environment variable must be set explicitly to include "version=2". + + HTTP Transport +~~~~~~~~~~~~~~~~ + +When using the http:// or https:// transport a client makes a "smart" +info/refs request as described in `http-protocol.txt` and requests that +v2 be used by supplying "version=2" in the `Git-Protocol` header. + + C: Git-Protocol: version=2 + C: + C: GET $GIT_URL/info/refs?service=git-upload-pack HTTP/1.0 + +A v2 server would reply: + + S: 200 OK + S: <Some headers> + S: ... + S: + S: 000eversion 2\n + S: <capability-advertisement> + +Subsequent requests are then made directly to the service +`$GIT_URL/git-upload-pack`. (This works the same for git-receive-pack). + + Capability Advertisement +-------------------------- + +A server which decides to communicate (based on a request from a client) +using protocol version 2, notifies the client by sending a version string +in its initial response followed by an advertisement of its capabilities. +Each capability is a key with an optional value. Clients must ignore all +unknown keys. Semantics of unknown values are left to the definition of +each key. Some capabilities will describe commands which can be requested +to be executed by the client. + + capability-advertisement = protocol-version + capability-list + flush-pkt + + protocol-version = PKT-LINE("version 2" LF) + capability-list = *capability + capability = PKT-LINE(key[=value] LF) + + key = 1*(ALPHA | DIGIT | "-_") + value = 1*(ALPHA | DIGIT | " -_.,?\/{}[]()<>!@#$%^&*+=:;") + + Command Request +----------------- + +After receiving the capability advertisement, a client can then issue a +request to select the command it wants with any particular capabilities +or arguments. There is then an optional section where the client can +provide any command specific parameters or queries. Only a single +command can be requested at a time. + + request = empty-request | command-request + empty-request = flush-pkt + command-request = command + capability-list + [command-args] + flush-pkt + command = PKT-LINE("command=" key LF) + command-args = delim-pkt + *command-specific-arg + + command-specific-args are packet line framed arguments defined by + each individual command. + +The server will then check to ensure that the client's request is +comprised of a valid command as well as valid capabilities which were +advertised. If the request is valid the server will then execute the +command. A server MUST wait till it has received the client's entire +request before issuing a response. The format of the response is +determined by the command being executed, but in all cases a flush-pkt +indicates the end of the response. + +When a command has finished, and the client has received the entire +response from the server, a client can either request that another +command be executed or can terminate the connection. A client may +optionally send an empty request consisting of just a flush-pkt to +indicate that no more requests will be made. + + Capabilities +-------------- + +There are two different types of capabilities: normal capabilities, +which can be used to to convey information or alter the behavior of a +request, and commands, which are the core actions that a client wants to +perform (fetch, push, etc). + +Protocol version 2 is stateless by default. This means that all commands +must only last a single round and be stateless from the perspective of the +server side, unless the client has requested a capability indicating that +state should be maintained by the server. Clients MUST NOT require state +management on the server side in order to function correctly. This +permits simple round-robin load-balancing on the server side, without +needing to worry about state management. + + agent +~~~~~~~ + +The server can advertise the `agent` capability with a value `X` (in the +form `agent=X`) to notify the client that the server is running version +`X`. The client may optionally send its own agent string by including +the `agent` capability with a value `Y` (in the form `agent=Y`) in its +request to the server (but it MUST NOT do so if the server did not +advertise the agent capability). The `X` and `Y` strings may contain any +printable ASCII characters except space (i.e., the byte range 32 < x < +127), and are typically of the form "package/version" (e.g., +"git/1.8.3.1"). The agent strings are purely informative for statistics +and debugging purposes, and MUST NOT be used to programmatically assume +the presence or absence of particular features. + + ls-refs +~~~~~~~~~ + +`ls-refs` is the command used to request a reference advertisement in v2. +Unlike the current reference advertisement, ls-refs takes in arguments +which can be used to limit the refs sent from the server. + +Additional features not supported in the base command will be advertised +as the value of the command in the capability advertisement in the form +of a space separated list of features: "<command>=<feature 1> <feature 2>" + +ls-refs takes in the following arguments: + + symrefs + In addition to the object pointed by it, show the underlying ref + pointed by it when showing a symbolic ref. + peel + Show peeled tags. + ref-prefix <prefix> + When specified, only references having a prefix matching one of + the provided prefixes are displayed. + +The output of ls-refs is as follows: + + output = *ref + flush-pkt + ref = PKT-LINE(obj-id SP refname *(SP ref-attribute) LF) + ref-attribute = (symref | peeled) + symref = "symref-target:" symref-target + peeled = "peeled:" obj-id + + fetch +~~~~~~~ + +`fetch` is the command used to fetch a packfile in v2. It can be looked +at as a modified version of the v1 fetch where the ref-advertisement is +stripped out (since the `ls-refs` command fills that role) and the +message format is tweaked to eliminate redundancies and permit easy +addition of future extensions. + +Additional features not supported in the base command will be advertised +as the value of the command in the capability advertisement in the form +of a space separated list of features: "<command>=<feature 1> <feature 2>" + +A `fetch` request can take the following arguments: + + want <oid> + Indicates to the server an object which the client wants to + retrieve. Wants can be anything and are not limited to + advertised objects. + + have <oid> + Indicates to the server an object which the client has locally. + This allows the server to make a packfile which only contains + the objects that the client needs. Multiple 'have' lines can be + supplied. + + done + Indicates to the server that negotiation should terminate (or + not even begin if performing a clone) and that the server should + use the information supplied in the request to construct the + packfile. + + thin-pack + Request that a thin pack be sent, which is a pack with deltas + which reference base objects not contained within the pack (but + are known to exist at the receiving end). This can reduce the + network traffic significantly, but it requires the receiving end + to know how to "thicken" these packs by adding the missing bases + to the pack. + + no-progress + Request that progress information that would normally be sent on + side-band channel 2, during the packfile transfer, should not be + sent. However, the side-band channel 3 is still used for error + responses. + + include-tag + Request that annotated tags should be sent if the objects they + point to are being sent. + + ofs-delta + Indicate that the client understands PACKv2 with delta referring + to its base by position in pack rather than by an oid. That is, + they can read OBJ_OFS_DELTA (ake type 6) in a packfile. + +If the 'shallow' feature is advertised the following arguments can be +included in the clients request as well as the potential addition of the +'shallow-info' section in the server's response as explained below. + + shallow <oid> + A client must notify the server of all commits for which it only + has shallow copies (meaning that it doesn't have the parents of + a commit) by supplying a 'shallow <oid>' line for each such + object so that the server is aware of the limitations of the + client's history. This is so that the server is aware that the + client may not have all objects reachable from such commits. + + deepen <depth> + Requests that the fetch/clone should be shallow having a commit + depth of <depth> relative to the remote side. + + deepen-relative + Requests that the semantics of the "deepen" command be changed + to indicate that the depth requested is relative to the client's + current shallow boundary, instead of relative to the requested + commits. + + deepen-since <timestamp> + Requests that the shallow clone/fetch should be cut at a + specific time, instead of depth. Internally it's equivalent to + doing "git rev-list --max-age=<timestamp>". Cannot be used with + "deepen". + + deepen-not <rev> + Requests that the shallow clone/fetch should be cut at a + specific revision specified by '<rev>', instead of a depth. + Internally it's equivalent of doing "git rev-list --not <rev>". + Cannot be used with "deepen", but can be used with + "deepen-since". + +The response of `fetch` is broken into a number of sections separated by +delimiter packets (0001), with each section beginning with its section +header. + + output = *section + section = (acknowledgments | shallow-info | packfile) + (flush-pkt | delim-pkt) + + acknowledgments = PKT-LINE("acknowledgments" LF) + (nak | *ack) + (ready) + ready = PKT-LINE("ready" LF) + nak = PKT-LINE("NAK" LF) + ack = PKT-LINE("ACK" SP obj-id LF) + + shallow-info = PKT-LINE("shallow-info" LF) + *PKT-LINE((shallow | unshallow) LF) + shallow = "shallow" SP obj-id + unshallow = "unshallow" SP obj-id + + packfile = PKT-LINE("packfile" LF) + *PKT-LINE(%x01-03 *%x00-ff) + + acknowledgments section + * If the client determines that it is finished with negotiations + by sending a "done" line, the acknowledgments sections MUST be + omitted from the server's response. + + * Always begins with the section header "acknowledgments" + + * The server will respond with "NAK" if none of the object ids sent + as have lines were common. + + * The server will respond with "ACK obj-id" for all of the + object ids sent as have lines which are common. + + * A response cannot have both "ACK" lines as well as a "NAK" + line. + + * The server will respond with a "ready" line indicating that + the server has found an acceptable common base and is ready to + make and send a packfile (which will be found in the packfile + section of the same response) + + * If the server has found a suitable cut point and has decided + to send a "ready" line, then the server can decide to (as an + optimization) omit any "ACK" lines it would have sent during + its response. This is because the server will have already + determined the objects it plans to send to the client and no + further negotiation is needed. + + shallow-info section + * If the client has requested a shallow fetch/clone, a shallow + client requests a fetch or the server is shallow then the + server's response may include a shallow-info section. The + shallow-info section will be included if (due to one of the + above conditions) the server needs to inform the client of any + shallow boundaries or adjustments to the clients already + existing shallow boundaries. + + * Always begins with the section header "shallow-info" + + * If a positive depth is requested, the server will compute the + set of commits which are no deeper than the desired depth. + + * The server sends a "shallow obj-id" line for each commit whose + parents will not be sent in the following packfile. + + * The server sends an "unshallow obj-id" line for each commit + which the client has indicated is shallow, but is no longer + shallow as a result of the fetch (due to its parents being + sent in the following packfile). + + * The server MUST NOT send any "unshallow" lines for anything + which the client has not indicated was shallow as a part of + its request. + + * This section is only included if a packfile section is also + included in the response. + + packfile section + * This section is only included if the client has sent 'want' + lines in its request and either requested that no more + negotiation be done by sending 'done' or if the server has + decided it has found a sufficient cut point to produce a + packfile. + + * Always begins with the section header "packfile" + + * The transmission of the packfile begins immediately after the + section header + + * The data transfer of the packfile is always multiplexed, using + the same semantics of the 'side-band-64k' capability from + protocol version 1. This means that each packet, during the + packfile data stream, is made up of a leading 4-byte pkt-line + length (typical of the pkt-line format), followed by a 1-byte + stream code, followed by the actual data. + + The stream code can be one of: + 1 - pack data + 2 - progress messages + 3 - fatal error message just before stream aborts + + server-option +~~~~~~~~~~~~~~~ + +If advertised, indicates that any number of server specific options can be +included in a request. This is done by sending each option as a +"server-option=<option>" capability line in the capability-list section of +a request. + +The provided options must not contain a NUL or LF character. diff --git a/Documentation/technical/shallow.txt b/Documentation/technical/shallow.txt index 5183b15422..01dedfe9ff 100644 --- a/Documentation/technical/shallow.txt +++ b/Documentation/technical/shallow.txt @@ -8,20 +8,22 @@ repo, and therefore grafts are introduced pretending that these commits have no parents. ********************************************************* -The basic idea is to write the SHA-1s of shallow commits into -$GIT_DIR/shallow, and handle its contents like the contents -of $GIT_DIR/info/grafts (with the difference that shallow -cannot contain parent information). - -This information is stored in a new file instead of grafts, or -even the config, since the user should not touch that file -at all (even throughout development of the shallow clone, it -was never manually edited!). +$GIT_DIR/shallow lists commit object names and tells Git to +pretend as if they are root commits (e.g. "git log" traversal +stops after showing them; "git fsck" does not complain saying +the commits listed on their "parent" lines do not exist). Each line contains exactly one SHA-1. When read, a commit_graft will be constructed, which has nr_parent < 0 to make it easier to discern from user provided grafts. +Note that the shallow feature could not be changed easily to +use replace refs: a commit containing a `mergetag` is not allowed +to be replaced, not even by a root commit. Such a commit can be +made shallow, though. Also, having a `shallow` file explicitly +listing all the commits made shallow makes it a *lot* easier to +do shallow-specific things such as to deepen the history. + Since fsck-objects relies on the library to read the objects, it honours shallow commits automatically. @@ -441,6 +441,49 @@ all:: # # When cross-compiling, define HOST_CPU as the canonical name of the CPU on # which the built Git will run (for instance "x86_64"). +# +# Define RUNTIME_PREFIX to configure Git to resolve its ancillary tooling and +# support files relative to the location of the runtime binary, rather than +# hard-coding them into the binary. Git installations built with RUNTIME_PREFIX +# can be moved to arbitrary filesystem locations. RUNTIME_PREFIX also causes +# Perl scripts to use a modified entry point header allowing them to resolve +# support files at runtime. +# +# When using RUNTIME_PREFIX, define HAVE_BSD_KERN_PROC_SYSCTL if your platform +# supports the KERN_PROC BSD sysctl function. +# +# When using RUNTIME_PREFIX, define PROCFS_EXECUTABLE_PATH if your platform +# mounts a "procfs" filesystem capable of resolving the path of the current +# executable. If defined, this must be the canonical path for the "procfs" +# current executable path. +# +# When using RUNTIME_PREFIX, define HAVE_NS_GET_EXECUTABLE_PATH if your platform +# supports calling _NSGetExecutablePath to retrieve the path of the running +# executable. +# +# When using RUNTIME_PREFIX, define HAVE_WPGMPTR if your platform offers +# the global variable _wpgmptr containing the absolute path of the current +# executable (this is the case on Windows). +# +# Define DEVELOPER to enable more compiler warnings. Compiler version +# and family are auto detected, but could be overridden by defining +# COMPILER_FEATURES (see config.mak.dev) +# +# When DEVELOPER is set, DEVOPTS can be used to control compiler +# options. This variable contains keywords separated by +# whitespace. The following keywords are are recognized: +# +# no-error: +# +# suppresses the -Werror that implicitly comes with +# DEVELOPER=1. Useful for getting the full set of errors +# without immediately dying, or for logging them. +# +# extra-all: +# +# The DEVELOPER mode enables -Wextra with a few exceptions. By +# setting this flag the exceptions are removed, and all of +# -Wextra is used. GIT-VERSION-FILE: FORCE @$(SHELL_PATH) ./GIT-VERSION-GEN @@ -449,15 +492,6 @@ GIT-VERSION-FILE: FORCE # CFLAGS and LDFLAGS are for the users to override from the command line. CFLAGS = -g -O2 -Wall -DEVELOPER_CFLAGS = -Werror \ - -Wdeclaration-after-statement \ - -Wno-format-zero-length \ - -Wold-style-definition \ - -Woverflow \ - -Wpointer-arith \ - -Wstrict-prototypes \ - -Wunused \ - -Wvla LDFLAGS = ALL_CFLAGS = $(CPPFLAGS) $(CFLAGS) ALL_LDFLAGS = $(LDFLAGS) @@ -478,6 +512,8 @@ ARFLAGS = rcs # mandir # infodir # htmldir +# localedir +# perllibdir # This can help installing the suite in a relocatable way. prefix = $(HOME) @@ -502,7 +538,9 @@ bindir_relative = $(patsubst $(prefix)/%,%,$(bindir)) mandir_relative = $(patsubst $(prefix)/%,%,$(mandir)) infodir_relative = $(patsubst $(prefix)/%,%,$(infodir)) gitexecdir_relative = $(patsubst $(prefix)/%,%,$(gitexecdir)) +localedir_relative = $(patsubst $(prefix)/%,%,$(localedir)) htmldir_relative = $(patsubst $(prefix)/%,%,$(htmldir)) +perllibdir_relative = $(patsubst $(prefix)/%,%,$(perllibdir)) export prefix bindir sharedir sysconfdir gitwebdir perllibdir localedir @@ -652,7 +690,6 @@ PROGRAM_OBJS += imap-send.o PROGRAM_OBJS += sh-i18n--envsubst.o PROGRAM_OBJS += shell.o PROGRAM_OBJS += show-index.o -PROGRAM_OBJS += upload-pack.o PROGRAM_OBJS += remote-testsvn.o # Binary suffix, set to .exe for Windows builds @@ -701,6 +738,7 @@ TEST_PROGRAMS_NEED_X += test-dump-untracked-cache TEST_PROGRAMS_NEED_X += test-fake-ssh TEST_PROGRAMS_NEED_X += test-line-buffer TEST_PROGRAMS_NEED_X += test-parse-options +TEST_PROGRAMS_NEED_X += test-pkt-line TEST_PROGRAMS_NEED_X += test-svn-fe TEST_PROGRAMS_NEED_X += test-tool @@ -789,6 +827,7 @@ LIB_OBJS += color.o LIB_OBJS += column.o LIB_OBJS += combine-diff.o LIB_OBJS += commit.o +LIB_OBJS += commit-graph.o LIB_OBJS += compat/obstack.o LIB_OBJS += compat/terminal.o LIB_OBJS += config.o @@ -842,6 +881,7 @@ LIB_OBJS += list-objects-filter-options.o LIB_OBJS += ll-merge.o LIB_OBJS += lockfile.o LIB_OBJS += log-tree.o +LIB_OBJS += ls-refs.o LIB_OBJS += mailinfo.o LIB_OBJS += mailmap.o LIB_OBJS += match-trees.o @@ -898,6 +938,7 @@ LIB_OBJS += revision.o LIB_OBJS += run-command.o LIB_OBJS += send-pack.o LIB_OBJS += sequencer.o +LIB_OBJS += serve.o LIB_OBJS += server-info.o LIB_OBJS += setup.o LIB_OBJS += sha1-array.o @@ -926,6 +967,7 @@ LIB_OBJS += tree-diff.o LIB_OBJS += tree.o LIB_OBJS += tree-walk.o LIB_OBJS += unpack-trees.o +LIB_OBJS += upload-pack.o LIB_OBJS += url.o LIB_OBJS += urlmatch.o LIB_OBJS += usage.o @@ -965,6 +1007,7 @@ BUILTIN_OBJS += builtin/clone.o BUILTIN_OBJS += builtin/column.o BUILTIN_OBJS += builtin/commit-tree.o BUILTIN_OBJS += builtin/commit.o +BUILTIN_OBJS += builtin/commit-graph.o BUILTIN_OBJS += builtin/config.o BUILTIN_OBJS += builtin/count-objects.o BUILTIN_OBJS += builtin/credential.o @@ -1030,6 +1073,7 @@ BUILTIN_OBJS += builtin/rev-parse.o BUILTIN_OBJS += builtin/revert.o BUILTIN_OBJS += builtin/rm.o BUILTIN_OBJS += builtin/send-pack.o +BUILTIN_OBJS += builtin/serve.o BUILTIN_OBJS += builtin/shortlog.o BUILTIN_OBJS += builtin/show-branch.o BUILTIN_OBJS += builtin/show-ref.o @@ -1043,6 +1087,7 @@ BUILTIN_OBJS += builtin/update-index.o BUILTIN_OBJS += builtin/update-ref.o BUILTIN_OBJS += builtin/update-server-info.o BUILTIN_OBJS += builtin/upload-archive.o +BUILTIN_OBJS += builtin/upload-pack.o BUILTIN_OBJS += builtin/var.o BUILTIN_OBJS += builtin/verify-commit.o BUILTIN_OBJS += builtin/verify-pack.o @@ -1064,7 +1109,7 @@ include config.mak.uname -include config.mak ifdef DEVELOPER -CFLAGS += $(DEVELOPER_CFLAGS) +include config.mak.dev endif comma := , @@ -1665,10 +1710,27 @@ ifdef HAVE_BSD_SYSCTL BASIC_CFLAGS += -DHAVE_BSD_SYSCTL endif +ifdef HAVE_BSD_KERN_PROC_SYSCTL + BASIC_CFLAGS += -DHAVE_BSD_KERN_PROC_SYSCTL +endif + ifdef HAVE_GETDELIM BASIC_CFLAGS += -DHAVE_GETDELIM endif +ifneq ($(PROCFS_EXECUTABLE_PATH),) + procfs_executable_path_SQ = $(subst ','\'',$(PROCFS_EXECUTABLE_PATH)) + BASIC_CFLAGS += '-DPROCFS_EXECUTABLE_PATH="$(procfs_executable_path_SQ)"' +endif + +ifdef HAVE_NS_GET_EXECUTABLE_PATH + BASIC_CFLAGS += -DHAVE_NS_GET_EXECUTABLE_PATH +endif + +ifdef HAVE_WPGMPTR + BASIC_CFLAGS += -DHAVE_WPGMPTR +endif + ifeq ($(TCLTK_PATH),) NO_TCLTK = NoThanks endif @@ -1753,11 +1815,13 @@ mandir_relative_SQ = $(subst ','\'',$(mandir_relative)) infodir_relative_SQ = $(subst ','\'',$(infodir_relative)) perllibdir_SQ = $(subst ','\'',$(perllibdir)) localedir_SQ = $(subst ','\'',$(localedir)) +localedir_relative_SQ = $(subst ','\'',$(localedir_relative)) gitexecdir_SQ = $(subst ','\'',$(gitexecdir)) gitexecdir_relative_SQ = $(subst ','\'',$(gitexecdir_relative)) template_dir_SQ = $(subst ','\'',$(template_dir)) htmldir_relative_SQ = $(subst ','\'',$(htmldir_relative)) prefix_SQ = $(subst ','\'',$(prefix)) +perllibdir_relative_SQ = $(subst ','\'',$(perllibdir_relative)) gitwebdir_SQ = $(subst ','\'',$(gitwebdir)) SHELL_PATH_SQ = $(subst ','\'',$(SHELL_PATH)) @@ -1768,6 +1832,31 @@ TCLTK_PATH_SQ = $(subst ','\'',$(TCLTK_PATH)) DIFF_SQ = $(subst ','\'',$(DIFF)) PERLLIB_EXTRA_SQ = $(subst ','\'',$(PERLLIB_EXTRA)) +# RUNTIME_PREFIX's resolution logic requires resource paths to be expressed +# relative to each other and share an installation path. +# +# This is a dependency in: +# - Git's binary RUNTIME_PREFIX logic in (see "exec_cmd.c"). +# - The runtime prefix Perl header (see +# "perl/header_templates/runtime_prefix.template.pl"). +ifdef RUNTIME_PREFIX + +ifneq ($(filter /%,$(firstword $(gitexecdir_relative))),) +$(error RUNTIME_PREFIX requires a relative gitexecdir, not: $(gitexecdir)) +endif + +ifneq ($(filter /%,$(firstword $(localedir_relative))),) +$(error RUNTIME_PREFIX requires a relative localedir, not: $(localedir)) +endif + +ifndef NO_PERL +ifneq ($(filter /%,$(firstword $(perllibdir_relative))),) +$(error RUNTIME_PREFIX requires a relative perllibdir, not: $(perllibdir)) +endif +endif + +endif + # We must filter out any object files from $(GITLIBS), # as it is typically used like: # @@ -1988,27 +2077,44 @@ git.res: git.rc GIT-VERSION-FILE # This makes sure we depend on the NO_PERL setting itself. $(SCRIPT_PERL_GEN): GIT-BUILD-OPTIONS -ifndef NO_PERL -$(SCRIPT_PERL_GEN): +# Used for substitution in Perl modules. Disabled when using RUNTIME_PREFIX +# since the locale directory is injected. +perl_localedir_SQ = $(localedir_SQ) +ifndef NO_PERL +PERL_HEADER_TEMPLATE = perl/header_templates/fixed_prefix.template.pl PERL_DEFINES = $(PERL_PATH_SQ):$(PERLLIB_EXTRA_SQ):$(perllibdir_SQ) -$(SCRIPT_PERL_GEN): % : %.perl GIT-PERL-DEFINES GIT-VERSION-FILE + +PERL_DEFINES := $(PERL_PATH_SQ) $(PERLLIB_EXTRA_SQ) $(perllibdir_SQ) +PERL_DEFINES += $(RUNTIME_PREFIX) + +# Support Perl runtime prefix. In this mode, a different header is installed +# into Perl scripts. +ifdef RUNTIME_PREFIX + +PERL_HEADER_TEMPLATE = perl/header_templates/runtime_prefix.template.pl + +# Don't export a fixed $(localedir) path; it will be resolved by the Perl header +# at runtime. +perl_localedir_SQ = + +endif + +PERL_DEFINES += $(gitexecdir) $(perllibdir) $(localedir) + +$(SCRIPT_PERL_GEN): % : %.perl GIT-PERL-DEFINES GIT-PERL-HEADER GIT-VERSION-FILE $(QUIET_GEN)$(RM) $@ $@+ && \ - INSTLIBDIR='$(perllibdir_SQ)' && \ - INSTLIBDIR_EXTRA='$(PERLLIB_EXTRA_SQ)' && \ - INSTLIBDIR="$$INSTLIBDIR$${INSTLIBDIR_EXTRA:+:$$INSTLIBDIR_EXTRA}" && \ sed -e '1{' \ -e ' s|#!.*perl|#!$(PERL_PATH_SQ)|' \ - -e ' h' \ - -e ' s=.*=use lib (split(/$(pathsep)/, $$ENV{GITPERLLIB} || "'"$$INSTLIBDIR"'"));=' \ - -e ' H' \ - -e ' x' \ + -e ' rGIT-PERL-HEADER' \ + -e ' G' \ -e '}' \ -e 's/@@GIT_VERSION@@/$(GIT_VERSION)/g' \ $< >$@+ && \ chmod +x $@+ && \ mv $@+ $@ +PERL_DEFINES := $(subst $(space),:,$(PERL_DEFINES)) GIT-PERL-DEFINES: FORCE @FLAGS='$(PERL_DEFINES)'; \ if test x"$$FLAGS" != x"`cat $@ 2>/dev/null`" ; then \ @@ -2016,6 +2122,22 @@ GIT-PERL-DEFINES: FORCE echo "$$FLAGS" >$@; \ fi +GIT-PERL-HEADER: $(PERL_HEADER_TEMPLATE) GIT-PERL-DEFINES Makefile + $(QUIET_GEN)$(RM) $@ && \ + INSTLIBDIR='$(perllibdir_SQ)' && \ + INSTLIBDIR_EXTRA='$(PERLLIB_EXTRA_SQ)' && \ + INSTLIBDIR="$$INSTLIBDIR$${INSTLIBDIR_EXTRA:+:$$INSTLIBDIR_EXTRA}" && \ + sed -e 's=@@PATHSEP@@=$(pathsep)=g' \ + -e "s=@@INSTLIBDIR@@=$$INSTLIBDIR=g" \ + -e 's=@@PERLLIBDIR_REL@@=$(perllibdir_relative_SQ)=g' \ + -e 's=@@GITEXECDIR_REL@@=$(gitexecdir_relative_SQ)=g' \ + -e 's=@@LOCALEDIR_REL@@=$(localedir_relative_SQ)=g' \ + $< >$@+ && \ + mv $@+ $@ + +.PHONY: perllibdir +perllibdir: + @echo '$(perllibdir_SQ)' .PHONY: gitweb gitweb: @@ -2160,8 +2282,9 @@ endif exec-cmd.sp exec-cmd.s exec-cmd.o: GIT-PREFIX exec-cmd.sp exec-cmd.s exec-cmd.o: EXTRA_CPPFLAGS = \ '-DGIT_EXEC_PATH="$(gitexecdir_SQ)"' \ + '-DGIT_LOCALE_PATH="$(localedir_relative_SQ)"' \ '-DBINDIR="$(bindir_relative_SQ)"' \ - '-DPREFIX="$(prefix_SQ)"' + '-DFALLBACK_RUNTIME_PREFIX="$(prefix_SQ)"' builtin/init-db.sp builtin/init-db.s builtin/init-db.o: GIT-PREFIX builtin/init-db.sp builtin/init-db.s builtin/init-db.o: EXTRA_CPPFLAGS = \ @@ -2177,7 +2300,7 @@ attr.sp attr.s attr.o: EXTRA_CPPFLAGS = \ gettext.sp gettext.s gettext.o: GIT-PREFIX gettext.sp gettext.s gettext.o: EXTRA_CPPFLAGS = \ - -DGIT_LOCALE_PATH='"$(localedir_SQ)"' + -DGIT_LOCALE_PATH='"$(localedir_relative_SQ)"' http-push.sp http.sp http-walker.sp remote-curl.sp imap-send.sp: SPARSE_FLAGS += \ -DCURL_DISABLE_TYPECHECK @@ -2337,7 +2460,7 @@ endif perl/build/lib/%.pm: perl/%.pm $(QUIET_GEN)mkdir -p $(dir $@) && \ - sed -e 's|@@LOCALEDIR@@|$(localedir_SQ)|g' \ + sed -e 's|@@LOCALEDIR@@|$(perl_localedir_SQ)|g' \ -e 's|@@NO_PERL_CPAN_FALLBACKS@@|$(NO_PERL_CPAN_FALLBACKS_SQ)|g' \ < $< > $@ @@ -2795,7 +2918,7 @@ ifndef NO_TCLTK endif $(RM) GIT-VERSION-FILE GIT-CFLAGS GIT-LDFLAGS GIT-BUILD-OPTIONS $(RM) GIT-USER-AGENT GIT-PREFIX - $(RM) GIT-SCRIPT-DEFINES GIT-PERL-DEFINES GIT-PYTHON-VARS + $(RM) GIT-SCRIPT-DEFINES GIT-PERL-DEFINES GIT-PERL-HEADER GIT-PYTHON-VARS .PHONY: all install profile-clean clean strip .PHONY: shell_compatibility_test please_set_SHELL_PATH_to_a_more_modern_shell @@ -1,5 +1,6 @@ #include "cache.h" #include "config.h" +#include "color.h" int advice_push_update_rejected = 1; int advice_push_non_ff_current = 1; @@ -19,6 +20,34 @@ int advice_rm_hints = 1; int advice_add_embedded_repo = 1; int advice_ignored_hook = 1; int advice_waiting_for_editor = 1; +int advice_graft_file_deprecated = 1; + +static int advice_use_color = -1; +static char advice_colors[][COLOR_MAXLEN] = { + GIT_COLOR_RESET, + GIT_COLOR_YELLOW, /* HINT */ +}; + +enum color_advice { + ADVICE_COLOR_RESET = 0, + ADVICE_COLOR_HINT = 1, +}; + +static int parse_advise_color_slot(const char *slot) +{ + if (!strcasecmp(slot, "reset")) + return ADVICE_COLOR_RESET; + if (!strcasecmp(slot, "hint")) + return ADVICE_COLOR_HINT; + return -1; +} + +static const char *advise_get_color(enum color_advice ix) +{ + if (want_color_stderr(advice_use_color)) + return advice_colors[ix]; + return ""; +} static struct { const char *name; @@ -42,6 +71,7 @@ static struct { { "addembeddedrepo", &advice_add_embedded_repo }, { "ignoredhook", &advice_ignored_hook }, { "waitingforeditor", &advice_waiting_for_editor }, + { "graftfiledeprecated", &advice_graft_file_deprecated }, /* make this an alias for backward compatibility */ { "pushnonfastforward", &advice_push_update_rejected } @@ -59,7 +89,10 @@ void advise(const char *advice, ...) for (cp = buf.buf; *cp; cp = np) { np = strchrnul(cp, '\n'); - fprintf(stderr, _("hint: %.*s\n"), (int)(np - cp), cp); + fprintf(stderr, _("%shint: %.*s%s\n"), + advise_get_color(ADVICE_COLOR_HINT), + (int)(np - cp), cp, + advise_get_color(ADVICE_COLOR_RESET)); if (*np) np++; } @@ -68,9 +101,23 @@ void advise(const char *advice, ...) int git_default_advice_config(const char *var, const char *value) { - const char *k; + const char *k, *slot_name; int i; + if (!strcmp(var, "color.advice")) { + advice_use_color = git_config_colorbool(var, value); + return 0; + } + + if (skip_prefix(var, "color.advice.", &slot_name)) { + int slot = parse_advise_color_slot(slot_name); + if (slot < 0) + return 0; + if (!value) + return config_error_nonbool(var); + return color_parse(value, advice_colors[slot]); + } + if (!skip_prefix(var, "advice.", &k)) return 0; @@ -21,6 +21,7 @@ extern int advice_rm_hints; extern int advice_add_embedded_repo; extern int advice_ignored_hook; extern int advice_waiting_for_editor; +extern int advice_graft_file_deprecated; int git_default_advice_config(const char *var, const char *value); __attribute__((format (printf, 1, 2))) @@ -93,6 +93,7 @@ void *alloc_commit_node(void) struct commit *c = alloc_node(&commit_state, sizeof(struct commit)); c->object.type = OBJ_COMMIT; c->index = alloc_commit_index(); + c->graph_pos = COMMIT_NOT_FROM_GRAPH; return c; } @@ -3860,9 +3860,9 @@ static int check_unsafe_path(struct patch *patch) if (!patch->is_delete) new_name = patch->new_name; - if (old_name && !verify_path(old_name)) + if (old_name && !verify_path(old_name, patch->old_mode)) return error(_("invalid path '%s'"), old_name); - if (new_name && !verify_path(new_name)) + if (new_name && !verify_path(new_name, patch->new_mode)) return error(_("invalid path '%s'"), new_name); return 0; } @@ -4058,7 +4058,7 @@ static int build_fake_ancestor(struct apply_state *state, struct patch *list) { struct patch *patch; struct index_state result = { NULL }; - static struct lock_file lock; + struct lock_file lock = LOCK_INIT; int res; /* Once we start supporting the reverse patch, it may be diff --git a/archive-tar.c b/archive-tar.c index 61a1a2547c..b6f58ddf38 100644 --- a/archive-tar.c +++ b/archive-tar.c @@ -276,7 +276,7 @@ static int write_tar_entry(struct archiver_args *args, memcpy(header.name, path, pathlen); if (S_ISREG(mode) && !args->convert && - oid_object_info(oid, &size) == OBJ_BLOB && + oid_object_info(the_repository, oid, &size) == OBJ_BLOB && size > big_file_threshold) buffer = NULL; else if (S_ISLNK(mode) || S_ISREG(mode)) { diff --git a/archive-zip.c b/archive-zip.c index 6b20bce4d1..74f3fe9103 100644 --- a/archive-zip.c +++ b/archive-zip.c @@ -325,7 +325,8 @@ static int write_zip_entry(struct archiver_args *args, compressed_size = 0; buffer = NULL; } else if (S_ISREG(mode) || S_ISLNK(mode)) { - enum object_type type = oid_object_info(oid, &size); + enum object_type type = oid_object_info(the_repository, oid, + &size); method = 0; attr2 = S_ISLNK(mode) ? ((mode | 0777) << 16) : diff --git a/argv-array.c b/argv-array.c index 5d370fa336..cb5bcd2c06 100644 --- a/argv-array.c +++ b/argv-array.c @@ -64,6 +64,26 @@ void argv_array_pop(struct argv_array *array) array->argc--; } +void argv_array_split(struct argv_array *array, const char *to_split) +{ + while (isspace(*to_split)) + to_split++; + for (;;) { + const char *p = to_split; + + if (!*p) + break; + + while (*p && !isspace(*p)) + p++; + argv_array_push_nodup(array, xstrndup(to_split, p - to_split)); + + while (isspace(*p)) + p++; + to_split = p; + } +} + void argv_array_clear(struct argv_array *array) { if (array->argv != empty_argv) { diff --git a/argv-array.h b/argv-array.h index 29056e49a1..750c30d2f2 100644 --- a/argv-array.h +++ b/argv-array.h @@ -19,6 +19,8 @@ LAST_ARG_MUST_BE_NULL void argv_array_pushl(struct argv_array *, ...); void argv_array_pushv(struct argv_array *, const char **); void argv_array_pop(struct argv_array *); +/* Splits by whitespace; does not handle quoted arguments! */ +void argv_array_split(struct argv_array *, const char *); void argv_array_clear(struct argv_array *); const char **argv_array_detach(struct argv_array *); @@ -81,7 +81,7 @@ static void verify_working_tree_path(struct commit *work_tree, const char *path) unsigned mode; if (!get_tree_entry(commit_oid, path, &blob_oid, &mode) && - oid_object_info(&blob_oid, NULL) == OBJ_BLOB) + oid_object_info(the_repository, &blob_oid, NULL) == OBJ_BLOB) return; } @@ -504,7 +504,7 @@ static int fill_blob_sha1_and_mode(struct blame_origin *origin) return 0; if (get_tree_entry(&origin->commit->object.oid, origin->path, &origin->blob_oid, &origin->mode)) goto error_out; - if (oid_object_info(&origin->blob_oid, NULL) != OBJ_BLOB) + if (oid_object_info(the_repository, &origin->blob_oid, NULL) != OBJ_BLOB) goto error_out; return 0; error_out: @@ -551,10 +551,10 @@ static struct blame_origin *find_origin(struct commit *parent, diff_setup_done(&diff_opts); if (is_null_oid(&origin->commit->object.oid)) - do_diff_cache(&parent->tree->object.oid, &diff_opts); + do_diff_cache(get_commit_tree_oid(parent), &diff_opts); else - diff_tree_oid(&parent->tree->object.oid, - &origin->commit->tree->object.oid, + diff_tree_oid(get_commit_tree_oid(parent), + get_commit_tree_oid(origin->commit), "", &diff_opts); diffcore_std(&diff_opts); @@ -620,10 +620,10 @@ static struct blame_origin *find_rename(struct commit *parent, diff_setup_done(&diff_opts); if (is_null_oid(&origin->commit->object.oid)) - do_diff_cache(&parent->tree->object.oid, &diff_opts); + do_diff_cache(get_commit_tree_oid(parent), &diff_opts); else - diff_tree_oid(&parent->tree->object.oid, - &origin->commit->tree->object.oid, + diff_tree_oid(get_commit_tree_oid(parent), + get_commit_tree_oid(origin->commit), "", &diff_opts); diffcore_std(&diff_opts); @@ -1255,10 +1255,10 @@ static void find_copy_in_parent(struct blame_scoreboard *sb, diff_opts.flags.find_copies_harder = 1; if (is_null_oid(&target->commit->object.oid)) - do_diff_cache(&parent->tree->object.oid, &diff_opts); + do_diff_cache(get_commit_tree_oid(parent), &diff_opts); else - diff_tree_oid(&parent->tree->object.oid, - &target->commit->tree->object.oid, + diff_tree_oid(get_commit_tree_oid(parent), + get_commit_tree_oid(target->commit), "", &diff_opts); if (!diff_opts.flags.find_copies_harder) @@ -149,6 +149,7 @@ extern int cmd_clone(int argc, const char **argv, const char *prefix); extern int cmd_clean(int argc, const char **argv, const char *prefix); extern int cmd_column(int argc, const char **argv, const char *prefix); extern int cmd_commit(int argc, const char **argv, const char *prefix); +extern int cmd_commit_graph(int argc, const char **argv, const char *prefix); extern int cmd_commit_tree(int argc, const char **argv, const char *prefix); extern int cmd_config(int argc, const char **argv, const char *prefix); extern int cmd_count_objects(int argc, const char **argv, const char *prefix); @@ -215,6 +216,7 @@ extern int cmd_rev_parse(int argc, const char **argv, const char *prefix); extern int cmd_revert(int argc, const char **argv, const char *prefix); extern int cmd_rm(int argc, const char **argv, const char *prefix); extern int cmd_send_pack(int argc, const char **argv, const char *prefix); +extern int cmd_serve(int argc, const char **argv, const char *prefix); extern int cmd_shortlog(int argc, const char **argv, const char *prefix); extern int cmd_show(int argc, const char **argv, const char *prefix); extern int cmd_show_branch(int argc, const char **argv, const char *prefix); @@ -231,6 +233,7 @@ extern int cmd_update_ref(int argc, const char **argv, const char *prefix); extern int cmd_update_server_info(int argc, const char **argv, const char *prefix); extern int cmd_upload_archive(int argc, const char **argv, const char *prefix); extern int cmd_upload_archive_writer(int argc, const char **argv, const char *prefix); +extern int cmd_upload_pack(int argc, const char **argv, const char *prefix); extern int cmd_var(int argc, const char **argv, const char *prefix); extern int cmd_verify_commit(int argc, const char **argv, const char *prefix); extern int cmd_verify_tag(int argc, const char **argv, const char *prefix); diff --git a/builtin/add.c b/builtin/add.c index c9e2619a9a..8a155dd41e 100644 --- a/builtin/add.c +++ b/builtin/add.c @@ -265,8 +265,6 @@ static int edit_patch(int argc, const char **argv, const char *prefix) return 0; } -static struct lock_file lock_file; - static const char ignore_error[] = N_("The following paths are ignored by one of your .gitignore files:\n"); @@ -393,6 +391,7 @@ int cmd_add(int argc, const char **argv, const char *prefix) int add_new_files; int require_pathspec; char *seen = NULL; + struct lock_file lock_file = LOCK_INIT; git_config(add_config, NULL); diff --git a/builtin/blame.c b/builtin/blame.c index db38c0b307..bfdf7cc132 100644 --- a/builtin/blame.c +++ b/builtin/blame.c @@ -655,7 +655,7 @@ static int is_a_rev(const char *name) if (get_oid(name, &oid)) return 0; - return OBJ_NONE < oid_object_info(&oid, NULL); + return OBJ_NONE < oid_object_info(the_repository, &oid, NULL); } int cmd_blame(int argc, const char **argv, const char *prefix) diff --git a/builtin/branch.c b/builtin/branch.c index 1d4b3ce3d7..5bb5123e72 100644 --- a/builtin/branch.c +++ b/builtin/branch.c @@ -391,7 +391,6 @@ static void print_ref_list(struct ref_filter *filter, struct ref_sorting *sortin struct ref_array array; int maxwidth = 0; const char *remote_prefix = ""; - struct strbuf out = STRBUF_INIT; char *to_free = NULL; /* @@ -419,7 +418,10 @@ static void print_ref_list(struct ref_filter *filter, struct ref_sorting *sortin ref_array_sort(sorting, &array); for (i = 0; i < array.nr; i++) { - format_ref_array_item(array.items[i], format, &out); + struct strbuf out = STRBUF_INIT; + struct strbuf err = STRBUF_INIT; + if (format_ref_array_item(array.items[i], format, &out, &err)) + die("%s", err.buf); if (column_active(colopts)) { assert(!filter->verbose && "--column and --verbose are incompatible"); /* format to a string_list to let print_columns() do its job */ @@ -428,6 +430,7 @@ static void print_ref_list(struct ref_filter *filter, struct ref_sorting *sortin fwrite(out.buf, 1, out.len, stdout); putchar('\n'); } + strbuf_release(&err); strbuf_release(&out); } diff --git a/builtin/cat-file.c b/builtin/cat-file.c index 1cc3ccc451..665b581949 100644 --- a/builtin/cat-file.c +++ b/builtin/cat-file.c @@ -77,7 +77,7 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name, switch (opt) { case 't': oi.type_name = &sb; - if (oid_object_info_extended(&oid, &oi, flags) < 0) + if (oid_object_info_extended(the_repository, &oid, &oi, flags) < 0) die("git cat-file: could not get object info"); if (sb.len) { printf("%s\n", sb.buf); @@ -88,7 +88,7 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name, case 's': oi.sizep = &size; - if (oid_object_info_extended(&oid, &oi, flags) < 0) + if (oid_object_info_extended(the_repository, &oid, &oi, flags) < 0) die("git cat-file: could not get object info"); printf("%lu\n", size); return 0; @@ -116,7 +116,7 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name, /* else fallthrough */ case 'p': - type = oid_object_info(&oid, NULL); + type = oid_object_info(the_repository, &oid, NULL); if (type < 0) die("Not a valid object name %s", obj_name); @@ -140,7 +140,7 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name, case 0: if (type_from_string(exp_type) == OBJ_BLOB) { struct object_id blob_oid; - if (oid_object_info(&oid, NULL) == OBJ_TAG) { + if (oid_object_info(the_repository, &oid, NULL) == OBJ_TAG) { char *buffer = read_object_file(&oid, &type, &size); const char *target; @@ -151,7 +151,7 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name, } else oidcpy(&blob_oid, &oid); - if (oid_object_info(&blob_oid, NULL) == OBJ_BLOB) + if (oid_object_info(the_repository, &blob_oid, NULL) == OBJ_BLOB) return stream_blob_to_fd(1, &blob_oid, NULL, 0); /* * we attempted to dereference a tag to a blob @@ -342,7 +342,7 @@ static void batch_object_write(const char *obj_name, struct batch_options *opt, struct strbuf buf = STRBUF_INIT; if (!data->skip_object_info && - oid_object_info_extended(&data->oid, &data->info, + oid_object_info_extended(the_repository, &data->oid, &data->info, OBJECT_INFO_LOOKUP_REPLACE) < 0) { printf("%s missing\n", obj_name ? obj_name : oid_to_hex(&data->oid)); diff --git a/builtin/checkout.c b/builtin/checkout.c index b49b582071..2b3b768eff 100644 --- a/builtin/checkout.c +++ b/builtin/checkout.c @@ -484,7 +484,8 @@ static int merge_working_tree(const struct checkout_opts *opts, resolve_undo_clear(); if (opts->force) { - ret = reset_tree(new_branch_info->commit->tree, opts, 1, writeout_error); + ret = reset_tree(get_commit_tree(new_branch_info->commit), + opts, 1, writeout_error); if (ret) return ret; } else { @@ -570,18 +571,23 @@ static int merge_working_tree(const struct checkout_opts *opts, o.verbosity = 0; work = write_tree_from_memory(&o); - ret = reset_tree(new_branch_info->commit->tree, opts, 1, + ret = reset_tree(get_commit_tree(new_branch_info->commit), + opts, 1, writeout_error); if (ret) return ret; o.ancestor = old_branch_info->name; o.branch1 = new_branch_info->name; o.branch2 = "local"; - ret = merge_trees(&o, new_branch_info->commit->tree, work, - old_branch_info->commit->tree, &result); + ret = merge_trees(&o, + get_commit_tree(new_branch_info->commit), + work, + get_commit_tree(old_branch_info->commit), + &result); if (ret < 0) exit(128); - ret = reset_tree(new_branch_info->commit->tree, opts, 0, + ret = reset_tree(get_commit_tree(new_branch_info->commit), + opts, 0, writeout_error); strbuf_release(&o.obuf); if (ret) @@ -1002,7 +1008,7 @@ static int parse_branchname_arg(int argc, const char **argv, *source_tree = parse_tree_indirect(rev); } else { parse_commit_or_die(new_branch_info->commit); - *source_tree = new_branch_info->commit->tree; + *source_tree = get_commit_tree(new_branch_info->commit); } if (!*source_tree) /* case (1): want a tree */ diff --git a/builtin/clone.c b/builtin/clone.c index 918820c539..ecd8495dab 100644 --- a/builtin/clone.c +++ b/builtin/clone.c @@ -1135,7 +1135,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix) if (transport->smart_options && !deepen && !filter_options.choice) transport->smart_options->check_self_contained_and_connected = 1; - refs = transport_get_remote_refs(transport); + refs = transport_get_remote_refs(transport, NULL); if (refs) { mapped_refs = wanted_peer_refs(refs, refspec); diff --git a/builtin/column.c b/builtin/column.c index 0c3223d64b..5228ccf37a 100644 --- a/builtin/column.c +++ b/builtin/column.c @@ -42,7 +42,6 @@ int cmd_column(int argc, const char **argv, const char *prefix) git_config(column_config, NULL); memset(&copts, 0, sizeof(copts)); - copts.width = term_columns(); copts.padding = 1; argc = parse_options(argc, argv, "", options, builtin_column_usage, 0); if (argc) diff --git a/builtin/commit-graph.c b/builtin/commit-graph.c new file mode 100644 index 0000000000..37420ae0fd --- /dev/null +++ b/builtin/commit-graph.c @@ -0,0 +1,171 @@ +#include "builtin.h" +#include "config.h" +#include "dir.h" +#include "lockfile.h" +#include "parse-options.h" +#include "commit-graph.h" + +static char const * const builtin_commit_graph_usage[] = { + N_("git commit-graph [--object-dir <objdir>]"), + N_("git commit-graph read [--object-dir <objdir>]"), + N_("git commit-graph write [--object-dir <objdir>] [--append] [--stdin-packs|--stdin-commits]"), + NULL +}; + +static const char * const builtin_commit_graph_read_usage[] = { + N_("git commit-graph read [--object-dir <objdir>]"), + NULL +}; + +static const char * const builtin_commit_graph_write_usage[] = { + N_("git commit-graph write [--object-dir <objdir>] [--append] [--stdin-packs|--stdin-commits]"), + NULL +}; + +static struct opts_commit_graph { + const char *obj_dir; + int stdin_packs; + int stdin_commits; + int append; +} opts; + +static int graph_read(int argc, const char **argv) +{ + struct commit_graph *graph = NULL; + char *graph_name; + + static struct option builtin_commit_graph_read_options[] = { + OPT_STRING(0, "object-dir", &opts.obj_dir, + N_("dir"), + N_("The object directory to store the graph")), + OPT_END(), + }; + + argc = parse_options(argc, argv, NULL, + builtin_commit_graph_read_options, + builtin_commit_graph_read_usage, 0); + + if (!opts.obj_dir) + opts.obj_dir = get_object_directory(); + + graph_name = get_commit_graph_filename(opts.obj_dir); + graph = load_commit_graph_one(graph_name); + + if (!graph) + die("graph file %s does not exist", graph_name); + FREE_AND_NULL(graph_name); + + printf("header: %08x %d %d %d %d\n", + ntohl(*(uint32_t*)graph->data), + *(unsigned char*)(graph->data + 4), + *(unsigned char*)(graph->data + 5), + *(unsigned char*)(graph->data + 6), + *(unsigned char*)(graph->data + 7)); + printf("num_commits: %u\n", graph->num_commits); + printf("chunks:"); + + if (graph->chunk_oid_fanout) + printf(" oid_fanout"); + if (graph->chunk_oid_lookup) + printf(" oid_lookup"); + if (graph->chunk_commit_data) + printf(" commit_metadata"); + if (graph->chunk_large_edges) + printf(" large_edges"); + printf("\n"); + + return 0; +} + +static int graph_write(int argc, const char **argv) +{ + const char **pack_indexes = NULL; + int packs_nr = 0; + const char **commit_hex = NULL; + int commits_nr = 0; + const char **lines = NULL; + int lines_nr = 0; + int lines_alloc = 0; + + static struct option builtin_commit_graph_write_options[] = { + OPT_STRING(0, "object-dir", &opts.obj_dir, + N_("dir"), + N_("The object directory to store the graph")), + OPT_BOOL(0, "stdin-packs", &opts.stdin_packs, + N_("scan pack-indexes listed by stdin for commits")), + OPT_BOOL(0, "stdin-commits", &opts.stdin_commits, + N_("start walk at commits listed by stdin")), + OPT_BOOL(0, "append", &opts.append, + N_("include all commits already in the commit-graph file")), + OPT_END(), + }; + + argc = parse_options(argc, argv, NULL, + builtin_commit_graph_write_options, + builtin_commit_graph_write_usage, 0); + + if (opts.stdin_packs && opts.stdin_commits) + die(_("cannot use both --stdin-commits and --stdin-packs")); + if (!opts.obj_dir) + opts.obj_dir = get_object_directory(); + + if (opts.stdin_packs || opts.stdin_commits) { + struct strbuf buf = STRBUF_INIT; + lines_nr = 0; + lines_alloc = 128; + ALLOC_ARRAY(lines, lines_alloc); + + while (strbuf_getline(&buf, stdin) != EOF) { + ALLOC_GROW(lines, lines_nr + 1, lines_alloc); + lines[lines_nr++] = strbuf_detach(&buf, NULL); + } + + if (opts.stdin_packs) { + pack_indexes = lines; + packs_nr = lines_nr; + } + if (opts.stdin_commits) { + commit_hex = lines; + commits_nr = lines_nr; + } + } + + write_commit_graph(opts.obj_dir, + pack_indexes, + packs_nr, + commit_hex, + commits_nr, + opts.append); + + return 0; +} + +int cmd_commit_graph(int argc, const char **argv, const char *prefix) +{ + static struct option builtin_commit_graph_options[] = { + OPT_STRING(0, "object-dir", &opts.obj_dir, + N_("dir"), + N_("The object directory to store the graph")), + OPT_END(), + }; + + if (argc == 2 && !strcmp(argv[1], "-h")) + usage_with_options(builtin_commit_graph_usage, + builtin_commit_graph_options); + + git_config(git_default_config, NULL); + argc = parse_options(argc, argv, prefix, + builtin_commit_graph_options, + builtin_commit_graph_usage, + PARSE_OPT_STOP_AT_NON_OPTION); + + if (argc > 0) { + if (!strcmp(argv[0], "read")) + return graph_read(argc, argv); + if (!strcmp(argv[0], "write")) + return graph_write(argc, argv); + } + + usage_with_options(builtin_commit_graph_usage, + builtin_commit_graph_options); +} diff --git a/builtin/commit.c b/builtin/commit.c index 7b47d1b7fb..5205d3a408 100644 --- a/builtin/commit.c +++ b/builtin/commit.c @@ -161,9 +161,9 @@ static void determine_whence(struct wt_status *s) static void status_init_config(struct wt_status *s, config_fn_t fn) { wt_status_prepare(s); + init_diff_ui_defaults(); git_config(fn, s); determine_whence(s); - init_diff_ui_defaults(); s->hints = advice_status_hints; /* must come after git_config() */ } diff --git a/builtin/config.c b/builtin/config.c index c4f20332d7..1e31aa9f8d 100644 --- a/builtin/config.c +++ b/builtin/config.c @@ -25,7 +25,8 @@ static char term = '\n'; static int use_global_config, use_system_config, use_local_config; static struct git_config_source given_config_source; -static int actions, types; +static int actions, type; +static char *default_value; static int end_null; static int respect_includes_opt = -1; static struct config_options config_options; @@ -55,11 +56,68 @@ static int show_origin; #define PAGING_ACTIONS (ACTION_LIST | ACTION_GET_ALL | \ ACTION_GET_REGEXP | ACTION_GET_URLMATCH) -#define TYPE_BOOL (1<<0) -#define TYPE_INT (1<<1) -#define TYPE_BOOL_OR_INT (1<<2) -#define TYPE_PATH (1<<3) -#define TYPE_EXPIRY_DATE (1<<4) +#define TYPE_BOOL 1 +#define TYPE_INT 2 +#define TYPE_BOOL_OR_INT 3 +#define TYPE_PATH 4 +#define TYPE_EXPIRY_DATE 5 +#define TYPE_COLOR 6 + +#define OPT_CALLBACK_VALUE(s, l, v, h, i) \ + { OPTION_CALLBACK, (s), (l), (v), NULL, (h), PARSE_OPT_NOARG | \ + PARSE_OPT_NONEG, option_parse_type, (i) } + +static struct option builtin_config_options[]; + +static int option_parse_type(const struct option *opt, const char *arg, + int unset) +{ + int new_type, *to_type; + + if (unset) { + *((int *) opt->value) = 0; + return 0; + } + + /* + * To support '--<type>' style flags, begin with new_type equal to + * opt->defval. + */ + new_type = opt->defval; + if (!new_type) { + if (!strcmp(arg, "bool")) + new_type = TYPE_BOOL; + else if (!strcmp(arg, "int")) + new_type = TYPE_INT; + else if (!strcmp(arg, "bool-or-int")) + new_type = TYPE_BOOL_OR_INT; + else if (!strcmp(arg, "path")) + new_type = TYPE_PATH; + else if (!strcmp(arg, "expiry-date")) + new_type = TYPE_EXPIRY_DATE; + else if (!strcmp(arg, "color")) + new_type = TYPE_COLOR; + else + die(_("unrecognized --type argument, %s"), arg); + } + + to_type = opt->value; + if (*to_type && *to_type != new_type) { + /* + * Complain when there is a new type not equal to the old type. + * This allows for combinations like '--int --type=int' and + * '--type=int --type=int', but disallows ones like '--type=bool + * --int' and '--type=bool + * --type=int'. + */ + error("only one type at a time."); + usage_with_options(builtin_config_usage, + builtin_config_options); + } + *to_type = new_type; + + return 0; +} static struct option builtin_config_options[] = { OPT_GROUP(N_("Config file location")), @@ -84,16 +142,18 @@ static struct option builtin_config_options[] = { OPT_BIT(0, "get-color", &actions, N_("find the color configured: slot [default]"), ACTION_GET_COLOR), OPT_BIT(0, "get-colorbool", &actions, N_("find the color setting: slot [stdout-is-tty]"), ACTION_GET_COLORBOOL), OPT_GROUP(N_("Type")), - OPT_BIT(0, "bool", &types, N_("value is \"true\" or \"false\""), TYPE_BOOL), - OPT_BIT(0, "int", &types, N_("value is decimal number"), TYPE_INT), - OPT_BIT(0, "bool-or-int", &types, N_("value is --bool or --int"), TYPE_BOOL_OR_INT), - OPT_BIT(0, "path", &types, N_("value is a path (file or directory name)"), TYPE_PATH), - OPT_BIT(0, "expiry-date", &types, N_("value is an expiry date"), TYPE_EXPIRY_DATE), + OPT_CALLBACK('t', "type", &type, "", N_("value is given this type"), option_parse_type), + OPT_CALLBACK_VALUE(0, "bool", &type, N_("value is \"true\" or \"false\""), TYPE_BOOL), + OPT_CALLBACK_VALUE(0, "int", &type, N_("value is decimal number"), TYPE_INT), + OPT_CALLBACK_VALUE(0, "bool-or-int", &type, N_("value is --bool or --int"), TYPE_BOOL_OR_INT), + OPT_CALLBACK_VALUE(0, "path", &type, N_("value is a path (file or directory name)"), TYPE_PATH), + OPT_CALLBACK_VALUE(0, "expiry-date", &type, N_("value is an expiry date"), TYPE_EXPIRY_DATE), OPT_GROUP(N_("Other")), OPT_BOOL('z', "null", &end_null, N_("terminate values with NUL byte")), OPT_BOOL(0, "name-only", &omit_values, N_("show variable names only")), OPT_BOOL(0, "includes", &respect_includes_opt, N_("respect include directives on lookup")), OPT_BOOL(0, "show-origin", &show_origin, N_("show origin of config (file, standard input, blob, command line)")), + OPT_STRING(0, "default", &default_value, N_("value"), N_("with --get, use default value when missing entry")), OPT_END(), }; @@ -149,30 +209,35 @@ static int format_config(struct strbuf *buf, const char *key_, const char *value if (show_keys) strbuf_addch(buf, key_delim); - if (types == TYPE_INT) + if (type == TYPE_INT) strbuf_addf(buf, "%"PRId64, git_config_int64(key_, value_ ? value_ : "")); - else if (types == TYPE_BOOL) + else if (type == TYPE_BOOL) strbuf_addstr(buf, git_config_bool(key_, value_) ? "true" : "false"); - else if (types == TYPE_BOOL_OR_INT) { + else if (type == TYPE_BOOL_OR_INT) { int is_bool, v; v = git_config_bool_or_int(key_, value_, &is_bool); if (is_bool) strbuf_addstr(buf, v ? "true" : "false"); else strbuf_addf(buf, "%d", v); - } else if (types == TYPE_PATH) { + } else if (type == TYPE_PATH) { const char *v; if (git_config_pathname(&v, key_, value_) < 0) return -1; strbuf_addstr(buf, v); free((char *)v); - } else if (types == TYPE_EXPIRY_DATE) { + } else if (type == TYPE_EXPIRY_DATE) { timestamp_t t; if (git_config_expiry_date(&t, key_, value_) < 0) return -1; strbuf_addf(buf, "%"PRItime, t); + } else if (type == TYPE_COLOR) { + char v[COLOR_MAXLEN]; + if (git_config_color(v, key_, value_) < 0) + return -1; + strbuf_addstr(buf, v); } else if (value_) { strbuf_addstr(buf, value_); } else { @@ -258,6 +323,16 @@ static int get_value(const char *key_, const char *regex_) config_with_options(collect_config, &values, &given_config_source, &config_options); + if (!values.nr && default_value) { + struct strbuf *item; + ALLOC_GROW(values.items, values.nr + 1, values.alloc); + item = &values.items[values.nr++]; + strbuf_init(item, 0); + if (format_config(item, key_, default_value) < 0) + die(_("failed to format default config value: %s"), + default_value); + } + ret = !values.nr; for (i = 0; i < values.nr; i++) { @@ -287,7 +362,7 @@ static char *normalize_value(const char *key, const char *value) if (!value) return NULL; - if (types == 0 || types == TYPE_PATH || types == TYPE_EXPIRY_DATE) + if (type == 0 || type == TYPE_PATH || type == TYPE_EXPIRY_DATE) /* * We don't do normalization for TYPE_PATH here: If * the path is like ~/foobar/, we prefer to store @@ -296,11 +371,11 @@ static char *normalize_value(const char *key, const char *value) * Also don't do normalization for expiry dates. */ return xstrdup(value); - if (types == TYPE_INT) + if (type == TYPE_INT) return xstrfmt("%"PRId64, git_config_int64(key, value)); - if (types == TYPE_BOOL) + if (type == TYPE_BOOL) return xstrdup(git_config_bool(key, value) ? "true" : "false"); - if (types == TYPE_BOOL_OR_INT) { + if (type == TYPE_BOOL_OR_INT) { int is_bool, v; v = git_config_bool_or_int(key, value, &is_bool); if (!is_bool) @@ -308,8 +383,22 @@ static char *normalize_value(const char *key, const char *value) else return xstrdup(v ? "true" : "false"); } + if (type == TYPE_COLOR) { + char v[COLOR_MAXLEN]; + if (git_config_color(v, key, value)) + die("cannot parse color '%s'", value); + + /* + * The contents of `v` now contain an ANSI escape + * sequence, not suitable for including within a + * configuration file. Treat the above as a + * "sanity-check", and return the given value, which we + * know is representable as valid color code. + */ + return xstrdup(value); + } - BUG("cannot normalize type %d", types); + BUG("cannot normalize type %d", type); } static int get_color_found; @@ -566,12 +655,7 @@ int cmd_config(int argc, const char **argv, const char *prefix) key_delim = '\n'; } - if (HAS_MULTI_BITS(types)) { - error("only one type at a time."); - usage_with_options(builtin_config_usage, builtin_config_options); - } - - if ((actions & (ACTION_GET_COLOR|ACTION_GET_COLORBOOL)) && types) { + if ((actions & (ACTION_GET_COLOR|ACTION_GET_COLORBOOL)) && type) { error("--get-color and variable type are incoherent"); usage_with_options(builtin_config_usage, builtin_config_options); } @@ -601,6 +685,12 @@ int cmd_config(int argc, const char **argv, const char *prefix) usage_with_options(builtin_config_usage, builtin_config_options); } + if (default_value && !(actions & ACTION_GET)) { + error("--default is only applicable to --get"); + usage_with_options(builtin_config_usage, + builtin_config_options); + } + if (actions & PAGING_ACTIONS) setup_auto_pager("config", 1); diff --git a/builtin/describe.c b/builtin/describe.c index b5afc45846..cf1ae77d7c 100644 --- a/builtin/describe.c +++ b/builtin/describe.c @@ -502,7 +502,7 @@ static void describe(const char *arg, int last_one) if (cmit) describe_commit(&oid, &sb); - else if (oid_object_info(&oid, NULL) == OBJ_BLOB) + else if (oid_object_info(the_repository, &oid, NULL) == OBJ_BLOB) describe_blob(oid, &sb); else die(_("%s is neither a commit nor blob"), arg); @@ -612,7 +612,7 @@ int cmd_describe(int argc, const char **argv, const char *prefix) suffix = broken; } } else if (dirty) { - static struct lock_file index_lock; + struct lock_file index_lock = LOCK_INIT; struct rev_info revs; struct argv_array args = ARGV_ARRAY_INIT; int fd, result; diff --git a/builtin/diff.c b/builtin/diff.c index 16bfb22f73..bfefff3a84 100644 --- a/builtin/diff.c +++ b/builtin/diff.c @@ -398,7 +398,7 @@ int cmd_diff(int argc, const char **argv, const char *prefix) if (!obj) die(_("invalid object '%s' given."), name); if (obj->type == OBJ_COMMIT) - obj = &((struct commit *)obj)->tree->object; + obj = &get_commit_tree(((struct commit *)obj))->object; if (obj->type == OBJ_TREE) { obj->flags |= flags; diff --git a/builtin/difftool.c b/builtin/difftool.c index aad0e073ee..162806f238 100644 --- a/builtin/difftool.c +++ b/builtin/difftool.c @@ -610,7 +610,7 @@ static int run_dir_diff(const char *extcmd, int symlinks, const char *prefix, continue; if (!indices_loaded) { - static struct lock_file lock; + struct lock_file lock = LOCK_INIT; strbuf_reset(&buf); strbuf_addf(&buf, "%s/wtindex", tmpdir); if (hold_lock_file_for_update(&lock, buf.buf, 0) < 0 || diff --git a/builtin/fast-export.c b/builtin/fast-export.c index 116363f685..f9568ddba0 100644 --- a/builtin/fast-export.c +++ b/builtin/fast-export.c @@ -156,15 +156,14 @@ static void anonymize_path(struct strbuf *out, const char *path, } } -/* Since intptr_t is C99, we do not use it here */ -static inline uint32_t *mark_to_ptr(uint32_t mark) +static inline void *mark_to_ptr(uint32_t mark) { - return ((uint32_t *)NULL) + mark; + return (void *)(uintptr_t)mark; } static inline uint32_t ptr_to_mark(void * mark) { - return (uint32_t *)mark - (uint32_t *)NULL; + return (uint32_t)(uintptr_t)mark; } static inline void mark_object(struct object *object, uint32_t mark) @@ -578,11 +577,11 @@ static void handle_commit(struct commit *commit, struct rev_info *rev, get_object_mark(&commit->parents->item->object) != 0 && !full_tree) { parse_commit_or_die(commit->parents->item); - diff_tree_oid(&commit->parents->item->tree->object.oid, - &commit->tree->object.oid, "", &rev->diffopt); + diff_tree_oid(get_commit_tree_oid(commit->parents->item), + get_commit_tree_oid(commit), "", &rev->diffopt); } else - diff_root_tree_oid(&commit->tree->object.oid, + diff_root_tree_oid(get_commit_tree_oid(commit), "", &rev->diffopt); /* Export the referenced blobs, and remember the marks. */ @@ -651,8 +650,11 @@ static void handle_tail(struct object_array *commits, struct rev_info *revs, struct commit *commit; while (commits->nr) { commit = (struct commit *)object_array_pop(commits); - if (has_unshown_parent(commit)) + if (has_unshown_parent(commit)) { + /* Queue again, to be handled later */ + add_object_array(&commit->object, NULL, commits); return; + } handle_commit(commit, revs, paths_of_changed_objects); } } @@ -947,7 +949,7 @@ static void import_marks(char *input_file) if (last_idnum < mark) last_idnum = mark; - type = oid_object_info(&oid, NULL); + type = oid_object_info(the_repository, &oid, NULL); if (type < 0) die("object not found: %s", oid_to_hex(&oid)); diff --git a/builtin/fetch-pack.c b/builtin/fetch-pack.c index a7bc1366ab..1a1bc63566 100644 --- a/builtin/fetch-pack.c +++ b/builtin/fetch-pack.c @@ -4,6 +4,7 @@ #include "remote.h" #include "connect.h" #include "sha1-array.h" +#include "protocol.h" static const char fetch_pack_usage[] = "git fetch-pack [--all] [--stdin] [--quiet | -q] [--keep | -k] [--thin] " @@ -52,6 +53,7 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix) struct fetch_pack_args args; struct oid_array shallow = OID_ARRAY_INIT; struct string_list deepen_not = STRING_LIST_INIT_DUP; + struct packet_reader reader; fetch_if_missing = 0; @@ -211,10 +213,24 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix) if (!conn) return args.diag_url ? 0 : 1; } - get_remote_heads(fd[0], NULL, 0, &ref, 0, NULL, &shallow); + + packet_reader_init(&reader, fd[0], NULL, 0, + PACKET_READ_CHOMP_NEWLINE | + PACKET_READ_GENTLE_ON_EOF); + + switch (discover_version(&reader)) { + case protocol_v2: + die("support for protocol v2 not implemented yet"); + case protocol_v1: + case protocol_v0: + get_remote_heads(&reader, &ref, 0, NULL, &shallow); + break; + case protocol_unknown_version: + BUG("unknown protocol version"); + } ref = fetch_pack(&args, fd, conn, ref, dest, sought, nr_sought, - &shallow, pack_lockfile_ptr); + &shallow, pack_lockfile_ptr, protocol_v0); if (pack_lockfile) { printf("lock %s\n", pack_lockfile); fflush(stdout); diff --git a/builtin/fetch.c b/builtin/fetch.c index dcdfc66f09..1f037e8e4b 100644 --- a/builtin/fetch.c +++ b/builtin/fetch.c @@ -62,6 +62,7 @@ static int shown_url = 0; static int refmap_alloc, refmap_nr; static const char **refmap_array; static struct list_objects_filter_options filter_options; +static struct string_list server_options = STRING_LIST_INIT_DUP; static int git_fetch_config(const char *k, const char *v, void *cb) { @@ -170,6 +171,7 @@ static struct option builtin_fetch_options[] = { N_("accept refs that update .git/shallow")), { OPTION_CALLBACK, 0, "refmap", NULL, N_("refmap"), N_("specify fetch refmap"), PARSE_OPT_NONEG, parse_refmap_arg }, + OPT_STRING_LIST('o', "server-option", &server_options, N_("server-specific"), N_("option to transmit")), OPT_SET_INT('4', "ipv4", &family, N_("use IPv4 addresses only"), TRANSPORT_FAMILY_IPV4), OPT_SET_INT('6', "ipv6", &family, N_("use IPv6 addresses only"), @@ -264,7 +266,7 @@ static void find_non_local_tags(struct transport *transport, struct string_list_item *item = NULL; for_each_ref(add_existing, &existing_refs); - for (ref = transport_get_remote_refs(transport); ref; ref = ref->next) { + for (ref = transport_get_remote_refs(transport, NULL); ref; ref = ref->next) { if (!starts_with(ref->name, "refs/tags/")) continue; @@ -346,11 +348,28 @@ static struct ref *get_ref_map(struct transport *transport, struct ref *rm; struct ref *ref_map = NULL; struct ref **tail = &ref_map; + struct argv_array ref_prefixes = ARGV_ARRAY_INIT; /* opportunistically-updated references: */ struct ref *orefs = NULL, **oref_tail = &orefs; - const struct ref *remote_refs = transport_get_remote_refs(transport); + const struct ref *remote_refs; + + for (i = 0; i < refspec_count; i++) { + if (!refspecs[i].exact_sha1) { + const char *glob = strchr(refspecs[i].src, '*'); + if (glob) + argv_array_pushf(&ref_prefixes, "%.*s", + (int)(glob - refspecs[i].src), + refspecs[i].src); + else + expand_ref_prefix(&ref_prefixes, refspecs[i].src); + } + } + + remote_refs = transport_get_remote_refs(transport, &ref_prefixes); + + argv_array_clear(&ref_prefixes); if (refspec_count) { struct refspec *fetch_refspec; @@ -637,7 +656,7 @@ static int update_local_ref(struct ref *ref, struct branch *current_branch = branch_get(NULL); const char *pretty_ref = prettify_refname(ref->name); - type = oid_object_info(&ref->new_oid, NULL); + type = oid_object_info(the_repository, &ref->new_oid, NULL); if (type < 0) die(_("object %s not found"), oid_to_hex(&ref->new_oid)); @@ -1400,6 +1419,9 @@ static int fetch_one(struct remote *remote, int argc, const char **argv, int pru } } + if (server_options.nr) + gtransport->server_options = &server_options; + sigchain_push_common(unlock_pack_on_signal); atexit(unlock_pack); refspec = parse_fetch_refspec(ref_nr, refs); diff --git a/builtin/fsck.c b/builtin/fsck.c index 1ea414480a..916109ac1c 100644 --- a/builtin/fsck.c +++ b/builtin/fsck.c @@ -67,7 +67,8 @@ static const char *printable_type(struct object *obj) const char *ret; if (obj->type == OBJ_NONE) { - enum object_type type = oid_object_info(&obj->oid, NULL); + enum object_type type = oid_object_info(the_repository, + &obj->oid, NULL); if (type > 0) object_as_type(obj, type, 0); } @@ -339,7 +340,7 @@ static void check_connectivity(void) } } -static int fsck_obj(struct object *obj) +static int fsck_obj(struct object *obj, void *buffer, unsigned long size) { int err; @@ -353,7 +354,7 @@ static int fsck_obj(struct object *obj) if (fsck_walk(obj, NULL, &fsck_obj_options)) objerror(obj, "broken links"); - err = fsck_object(obj, NULL, 0, &fsck_obj_options); + err = fsck_object(obj, buffer, size, &fsck_obj_options); if (err) goto out; @@ -398,7 +399,7 @@ static int fsck_obj_buffer(const struct object_id *oid, enum object_type type, } obj->flags &= ~(REACHABLE | SEEN); obj->flags |= HAS_OBJ; - return fsck_obj(obj); + return fsck_obj(obj, buffer, size); } static int default_refs; @@ -506,44 +507,42 @@ static void get_default_heads(void) } } -static struct object *parse_loose_object(const struct object_id *oid, - const char *path) +static int fsck_loose(const struct object_id *oid, const char *path, void *data) { struct object *obj; - void *contents; enum object_type type; unsigned long size; + void *contents; int eaten; - if (read_loose_object(path, oid, &type, &size, &contents) < 0) - return NULL; + if (read_loose_object(path, oid, &type, &size, &contents) < 0) { + errors_found |= ERROR_OBJECT; + error("%s: object corrupt or missing: %s", + oid_to_hex(oid), path); + return 0; /* keep checking other objects */ + } if (!contents && type != OBJ_BLOB) BUG("read_loose_object streamed a non-blob"); obj = parse_object_buffer(oid, type, size, contents, &eaten); - - if (!eaten) - free(contents); - return obj; -} - -static int fsck_loose(const struct object_id *oid, const char *path, void *data) -{ - struct object *obj = parse_loose_object(oid, path); - if (!obj) { errors_found |= ERROR_OBJECT; - error("%s: object corrupt or missing: %s", + error("%s: object could not be parsed: %s", oid_to_hex(oid), path); + if (!eaten) + free(contents); return 0; /* keep checking other objects */ } obj->flags &= ~(REACHABLE | SEEN); obj->flags |= HAS_OBJ; - if (fsck_obj(obj)) + if (fsck_obj(obj, contents, size)) errors_found |= ERROR_OBJECT; - return 0; + + if (!eaten) + free(contents); + return 0; /* keep checking other objects, even if we saw an error */ } static int fsck_cruft(const char *basename, const char *path, void *data) @@ -755,6 +754,9 @@ int cmd_fsck(int argc, const char **argv, const char *prefix) } stop_progress(&progress); } + + if (fsck_finish(&fsck_obj_options)) + errors_found |= ERROR_OBJECT; } for (i = 0; i < argc; i++) { diff --git a/builtin/gc.c b/builtin/gc.c index 3e67124eaa..ccfb1ceaeb 100644 --- a/builtin/gc.c +++ b/builtin/gc.c @@ -22,6 +22,10 @@ #include "commit.h" #include "packfile.h" #include "object-store.h" +#include "pack.h" +#include "pack-objects.h" +#include "blob.h" +#include "tree.h" #define FAILED_RUN "failed to run %s" @@ -41,6 +45,8 @@ static timestamp_t gc_log_expire_time; static const char *gc_log_expire = "1.day.ago"; static const char *prune_expire = "2.weeks.ago"; static const char *prune_worktrees_expire = "3.months.ago"; +static unsigned long big_pack_threshold; +static unsigned long max_delta_cache_size = DEFAULT_DELTA_CACHE_SIZE; static struct argv_array pack_refs_cmd = ARGV_ARRAY_INIT; static struct argv_array reflog = ARGV_ARRAY_INIT; @@ -128,6 +134,9 @@ static void gc_config(void) git_config_get_expiry("gc.worktreepruneexpire", &prune_worktrees_expire); git_config_get_expiry("gc.logexpiry", &gc_log_expire); + git_config_get_ulong("gc.bigpackthreshold", &big_pack_threshold); + git_config_get_ulong("pack.deltacachesize", &max_delta_cache_size); + git_config(git_default_config, NULL); } @@ -166,6 +175,28 @@ static int too_many_loose_objects(void) return needed; } +static struct packed_git *find_base_packs(struct string_list *packs, + unsigned long limit) +{ + struct packed_git *p, *base = NULL; + + for (p = get_packed_git(the_repository); p; p = p->next) { + if (!p->pack_local) + continue; + if (limit) { + if (p->pack_size >= limit) + string_list_append(packs, p->pack_name); + } else if (!base || base->pack_size < p->pack_size) { + base = p; + } + } + + if (base) + string_list_append(packs, base->pack_name); + + return base; +} + static int too_many_packs(void) { struct packed_git *p; @@ -188,7 +219,86 @@ static int too_many_packs(void) return gc_auto_pack_limit < cnt; } -static void add_repack_all_option(void) +static uint64_t total_ram(void) +{ +#if defined(HAVE_SYSINFO) + struct sysinfo si; + + if (!sysinfo(&si)) + return si.totalram; +#elif defined(HAVE_BSD_SYSCTL) && (defined(HW_MEMSIZE) || defined(HW_PHYSMEM)) + int64_t physical_memory; + int mib[2]; + size_t length; + + mib[0] = CTL_HW; +# if defined(HW_MEMSIZE) + mib[1] = HW_MEMSIZE; +# else + mib[1] = HW_PHYSMEM; +# endif + length = sizeof(int64_t); + if (!sysctl(mib, 2, &physical_memory, &length, NULL, 0)) + return physical_memory; +#elif defined(GIT_WINDOWS_NATIVE) + MEMORYSTATUSEX memInfo; + + memInfo.dwLength = sizeof(MEMORYSTATUSEX); + if (GlobalMemoryStatusEx(&memInfo)) + return memInfo.ullTotalPhys; +#endif + return 0; +} + +static uint64_t estimate_repack_memory(struct packed_git *pack) +{ + unsigned long nr_objects = approximate_object_count(); + size_t os_cache, heap; + + if (!pack || !nr_objects) + return 0; + + /* + * First we have to scan through at least one pack. + * Assume enough room in OS file cache to keep the entire pack + * or we may accidentally evict data of other processes from + * the cache. + */ + os_cache = pack->pack_size + pack->index_size; + /* then pack-objects needs lots more for book keeping */ + heap = sizeof(struct object_entry) * nr_objects; + /* + * internal rev-list --all --objects takes up some memory too, + * let's say half of it is for blobs + */ + heap += sizeof(struct blob) * nr_objects / 2; + /* + * and the other half is for trees (commits and tags are + * usually insignificant) + */ + heap += sizeof(struct tree) * nr_objects / 2; + /* and then obj_hash[], underestimated in fact */ + heap += sizeof(struct object *) * nr_objects; + /* revindex is used also */ + heap += sizeof(struct revindex_entry) * nr_objects; + /* + * read_sha1_file() (either at delta calculation phase, or + * writing phase) also fills up the delta base cache + */ + heap += delta_base_cache_limit; + /* and of course pack-objects has its own delta cache */ + heap += max_delta_cache_size; + + return os_cache + heap; +} + +static int keep_one_pack(struct string_list_item *item, void *data) +{ + argv_array_pushf(&repack, "--keep-pack=%s", basename(item->string)); + return 0; +} + +static void add_repack_all_option(struct string_list *keep_pack) { if (prune_expire && !strcmp(prune_expire, "now")) argv_array_push(&repack, "-a"); @@ -197,6 +307,9 @@ static void add_repack_all_option(void) if (prune_expire) argv_array_pushf(&repack, "--unpack-unreachable=%s", prune_expire); } + + if (keep_pack) + for_each_string_list(keep_pack, keep_one_pack, NULL); } static void add_repack_incremental_option(void) @@ -219,9 +332,35 @@ static int need_to_gc(void) * we run "repack -A -d -l". Otherwise we tell the caller * there is no need. */ - if (too_many_packs()) - add_repack_all_option(); - else if (too_many_loose_objects()) + if (too_many_packs()) { + struct string_list keep_pack = STRING_LIST_INIT_NODUP; + + if (big_pack_threshold) { + find_base_packs(&keep_pack, big_pack_threshold); + if (keep_pack.nr >= gc_auto_pack_limit) { + big_pack_threshold = 0; + string_list_clear(&keep_pack, 0); + find_base_packs(&keep_pack, 0); + } + } else { + struct packed_git *p = find_base_packs(&keep_pack, 0); + uint64_t mem_have, mem_want; + + mem_have = total_ram(); + mem_want = estimate_repack_memory(p); + + /* + * Only allow 1/2 of memory for pack-objects, leave + * the rest for the OS and other processes in the + * system. + */ + if (!mem_have || mem_want < mem_have / 2) + string_list_clear(&keep_pack, 0); + } + + add_repack_all_option(&keep_pack); + string_list_clear(&keep_pack, 0); + } else if (too_many_loose_objects()) add_repack_incremental_option(); else return 0; @@ -234,7 +373,7 @@ static int need_to_gc(void) /* return NULL on success, else hostname running the gc */ static const char *lock_repo_for_gc(int force, pid_t* ret_pid) { - static struct lock_file lock; + struct lock_file lock = LOCK_INIT; char my_host[HOST_NAME_MAX + 1]; struct strbuf sb = STRBUF_INIT; struct stat st; @@ -354,6 +493,8 @@ int cmd_gc(int argc, const char **argv, const char *prefix) const char *name; pid_t pid; int daemonized = 0; + int keep_base_pack = -1; + timestamp_t dummy; struct option builtin_gc_options[] = { OPT__QUIET(&quiet, N_("suppress progress reporting")), @@ -366,6 +507,8 @@ int cmd_gc(int argc, const char **argv, const char *prefix) OPT_BOOL_F(0, "force", &force, N_("force running gc even if there may be another gc running"), PARSE_OPT_NOCOMPLETE), + OPT_BOOL(0, "keep-largest-pack", &keep_base_pack, + N_("repack all other packs except the largest pack")), OPT_END() }; @@ -382,7 +525,7 @@ int cmd_gc(int argc, const char **argv, const char *prefix) /* default expiry time, overwritten in gc_config */ gc_config(); if (parse_expiry_date(gc_log_expire, &gc_log_expire_time)) - die(_("Failed to parse gc.logexpiry value %s"), gc_log_expire); + die(_("failed to parse gc.logexpiry value %s"), gc_log_expire); if (pack_refs < 0) pack_refs = !is_bare_repository(); @@ -392,6 +535,9 @@ int cmd_gc(int argc, const char **argv, const char *prefix) if (argc > 0) usage_with_options(builtin_gc_usage, builtin_gc_options); + if (prune_expire && parse_expiry_date(prune_expire, &dummy)) + die(_("failed to parse prune expiry value %s"), prune_expire); + if (aggressive) { argv_array_push(&repack, "-f"); if (aggressive_depth > 0) @@ -431,8 +577,19 @@ int cmd_gc(int argc, const char **argv, const char *prefix) */ daemonized = !daemonize(); } - } else - add_repack_all_option(); + } else { + struct string_list keep_pack = STRING_LIST_INIT_NODUP; + + if (keep_base_pack != -1) { + if (keep_base_pack) + find_base_packs(&keep_pack, 0); + } else if (big_pack_threshold) { + find_base_packs(&keep_pack, big_pack_threshold); + } + + add_repack_all_option(&keep_pack); + string_list_clear(&keep_pack, 0); + } name = lock_repo_for_gc(force, &pid); if (name) { diff --git a/builtin/grep.c b/builtin/grep.c index 5f32d2ce84..6e7bc76785 100644 --- a/builtin/grep.c +++ b/builtin/grep.c @@ -602,8 +602,7 @@ static int grep_tree(struct grep_opt *opt, const struct pathspec *pathspec, } static int grep_object(struct grep_opt *opt, const struct pathspec *pathspec, - struct object *obj, const char *name, const char *path, - struct repository *repo) + struct object *obj, const char *name, const char *path) { if (obj->type == OBJ_BLOB) return grep_oid(opt, &obj->oid, name, 0, path); @@ -630,7 +629,7 @@ static int grep_object(struct grep_opt *opt, const struct pathspec *pathspec, } init_tree_desc(&tree, data, size); hit = grep_tree(opt, pathspec, &tree, &base, base.len, - obj->type == OBJ_COMMIT, repo); + obj->type == OBJ_COMMIT, the_repository); strbuf_release(&base); free(data); return hit; @@ -639,7 +638,6 @@ static int grep_object(struct grep_opt *opt, const struct pathspec *pathspec, } static int grep_objects(struct grep_opt *opt, const struct pathspec *pathspec, - struct repository *repo, const struct object_array *list) { unsigned int i; @@ -652,11 +650,11 @@ static int grep_objects(struct grep_opt *opt, const struct pathspec *pathspec, /* load the gitmodules file for this rev */ if (recurse_submodules) { - submodule_free(); + submodule_free(the_repository); gitmodules_config_oid(&real_obj->oid); } - if (grep_object(opt, pathspec, real_obj, list->objects[i].name, list->objects[i].path, - repo)) { + if (grep_object(opt, pathspec, real_obj, list->objects[i].name, + list->objects[i].path)) { hit = 1; if (opt->status_only) break; @@ -1108,7 +1106,7 @@ int cmd_grep(int argc, const char **argv, const char *prefix) if (cached) die(_("both --cached and trees are given.")); - hit = grep_objects(&opt, &pathspec, the_repository, &list); + hit = grep_objects(&opt, &pathspec, &list); } if (num_threads) diff --git a/builtin/index-pack.c b/builtin/index-pack.c index 21f22e3495..b3a5abcf2b 100644 --- a/builtin/index-pack.c +++ b/builtin/index-pack.c @@ -223,7 +223,7 @@ static unsigned check_object(struct object *obj) if (!(obj->flags & FLAG_CHECKED)) { unsigned long size; - int type = oid_object_info(&obj->oid, &size); + int type = oid_object_info(the_repository, &obj->oid, &size); if (type <= 0) die(_("did not receive expected object %s"), oid_to_hex(&obj->oid)); @@ -812,7 +812,7 @@ static void sha1_object(const void *data, struct object_entry *obj_entry, enum object_type has_type; unsigned long has_size; read_lock(); - has_type = oid_object_info(oid, &has_size); + has_type = oid_object_info(the_repository, oid, &has_size); if (has_type < 0) die(_("cannot read existing object info %s"), oid_to_hex(oid)); if (has_type != type || has_size != size) @@ -837,6 +837,9 @@ static void sha1_object(const void *data, struct object_entry *obj_entry, blob->object.flags |= FLAG_CHECKED; else die(_("invalid blob object %s"), oid_to_hex(oid)); + if (do_fsck_object && + fsck_object(&blob->object, (void *)data, size, &fsck_options)) + die(_("fsck error in packed object")); } else { struct object *obj; int eaten; @@ -854,7 +857,7 @@ static void sha1_object(const void *data, struct object_entry *obj_entry, die(_("invalid %s"), type_name(type)); if (do_fsck_object && fsck_object(obj, buf, size, &fsck_options)) - die(_("Error in object")); + die(_("fsck error in packed object")); if (strict && fsck_walk(obj, NULL, &fsck_options)) die(_("Not all child objects of %s are reachable"), oid_to_hex(&obj->oid)); @@ -1271,7 +1274,7 @@ static void conclude_pack(int fix_thin_pack, const char *curr_pack, unsigned cha nr_objects - nr_objects_initial); stop_progress_msg(&progress, msg.buf); strbuf_release(&msg); - hashclose(f, tail_hash, 0); + finalize_hashfile(f, tail_hash, 0); hashcpy(read_hash, pack_hash); fixup_pack_header_footer(output_fd, pack_hash, curr_pack, nr_objects, @@ -1479,6 +1482,9 @@ static void final(const char *final_pack_name, const char *curr_pack_name, } else chmod(final_index_name, 0444); + if (do_fsck_object) + add_packed_git(final_index_name, strlen(final_index_name), 0); + if (!from_stdin) { printf("%s\n", sha1_to_hex(hash)); } else { @@ -1820,6 +1826,10 @@ int cmd_index_pack(int argc, const char **argv, const char *prefix) pack_hash); else close(input_fd); + + if (do_fsck_object && fsck_finish(&fsck_options)) + die(_("fsck error in pack objects")); + free(objects); strbuf_release(&index_name_buf); if (pack_name == NULL) diff --git a/builtin/log.c b/builtin/log.c index 71f68a3e4f..a15599f4f0 100644 --- a/builtin/log.c +++ b/builtin/log.c @@ -1019,7 +1019,7 @@ static void make_cover_letter(struct rev_info *rev, int use_stdout, open_next_file(NULL, rev->numbered_files ? NULL : "cover-letter", rev, quiet)) return; - log_write_email_headers(rev, head, &pp.after_subject, &need_8bit_cte); + log_write_email_headers(rev, head, &pp.after_subject, &need_8bit_cte, 0); for (i = 0; !need_8bit_cte && i < nr; i++) { const char *buf = get_commit_buffer(list[i], NULL); @@ -1067,8 +1067,8 @@ static void make_cover_letter(struct rev_info *rev, int use_stdout, diff_setup_done(&opts); - diff_tree_oid(&origin->tree->object.oid, - &head->tree->object.oid, + diff_tree_oid(get_commit_tree_oid(origin), + get_commit_tree_oid(head), "", &opts); diffcore_std(&opts); diff_flush(&opts); diff --git a/builtin/ls-remote.c b/builtin/ls-remote.c index 540d56429f..1a25df7ee1 100644 --- a/builtin/ls-remote.c +++ b/builtin/ls-remote.c @@ -1,7 +1,9 @@ #include "builtin.h" #include "cache.h" #include "transport.h" +#include "ref-filter.h" #include "remote.h" +#include "refs.h" static const char * const ls_remote_usage[] = { N_("git ls-remote [--heads] [--tags] [--refs] [--upload-pack=<exec>]\n" @@ -43,10 +45,15 @@ int cmd_ls_remote(int argc, const char **argv, const char *prefix) int show_symref_target = 0; const char *uploadpack = NULL; const char **pattern = NULL; + struct argv_array ref_prefixes = ARGV_ARRAY_INIT; + int i; + struct string_list server_options = STRING_LIST_INIT_DUP; struct remote *remote; struct transport *transport; const struct ref *ref; + struct ref_array ref_array; + static struct ref_sorting *sorting = NULL, **sorting_tail = &sorting; struct option options[] = { OPT__QUIET(&quiet, N_("do not print remote URL")), @@ -60,14 +67,19 @@ int cmd_ls_remote(int argc, const char **argv, const char *prefix) OPT_BIT(0, "refs", &flags, N_("do not show peeled tags"), REF_NORMAL), OPT_BOOL(0, "get-url", &get_url, N_("take url.<base>.insteadOf into account")), + OPT_CALLBACK(0 , "sort", sorting_tail, N_("key"), + N_("field name to sort on"), &parse_opt_ref_sorting), OPT_SET_INT_F(0, "exit-code", &status, N_("exit with exit code 2 if no matching refs are found"), 2, PARSE_OPT_NOCOMPLETE), OPT_BOOL(0, "symref", &show_symref_target, N_("show underlying ref in addition to the object pointed by it")), + OPT_STRING_LIST('o', "server-option", &server_options, N_("server-specific"), N_("option to transmit")), OPT_END() }; + memset(&ref_array, 0, sizeof(ref_array)); + argc = parse_options(argc, argv, prefix, options, ls_remote_usage, PARSE_OPT_STOP_AT_NON_OPTION); dest = argv[0]; @@ -75,8 +87,17 @@ int cmd_ls_remote(int argc, const char **argv, const char *prefix) if (argc > 1) { int i; pattern = xcalloc(argc, sizeof(const char *)); - for (i = 1; i < argc; i++) + for (i = 1; i < argc; i++) { + const char *glob; pattern[i - 1] = xstrfmt("*/%s", argv[i]); + + glob = strchr(argv[i], '*'); + if (glob) + argv_array_pushf(&ref_prefixes, "%.*s", + (int)(glob - argv[i]), argv[i]); + else + expand_ref_prefix(&ref_prefixes, argv[i]); + } } remote = remote_get(dest); @@ -90,28 +111,46 @@ int cmd_ls_remote(int argc, const char **argv, const char *prefix) if (get_url) { printf("%s\n", *remote->url); + UNLEAK(sorting); return 0; } transport = transport_get(remote, NULL); if (uploadpack != NULL) transport_set_option(transport, TRANS_OPT_UPLOADPACK, uploadpack); + if (server_options.nr) + transport->server_options = &server_options; - ref = transport_get_remote_refs(transport); - if (transport_disconnect(transport)) + ref = transport_get_remote_refs(transport, &ref_prefixes); + if (transport_disconnect(transport)) { + UNLEAK(sorting); return 1; + } if (!dest && !quiet) fprintf(stderr, "From %s\n", *remote->url); for ( ; ref; ref = ref->next) { + struct ref_array_item *item; if (!check_ref_type(ref, flags)) continue; if (!tail_match(pattern, ref->name)) continue; + item = ref_array_push(&ref_array, ref->name, &ref->old_oid); + item->symref = xstrdup_or_null(ref->symref); + } + + if (sorting) + ref_array_sort(sorting, &ref_array); + + for (i = 0; i < ref_array.nr; i++) { + const struct ref_array_item *ref = ref_array.items[i]; if (show_symref_target && ref->symref) - printf("ref: %s\t%s\n", ref->symref, ref->name); - printf("%s\t%s\n", oid_to_hex(&ref->old_oid), ref->name); + printf("ref: %s\t%s\n", ref->symref, ref->refname); + printf("%s\t%s\n", oid_to_hex(&ref->objectname), ref->refname); status = 0; /* we found something */ } + + UNLEAK(sorting); + UNLEAK(ref_array); return status; } diff --git a/builtin/ls-tree.c b/builtin/ls-tree.c index d44b4f9c27..409da4e835 100644 --- a/builtin/ls-tree.c +++ b/builtin/ls-tree.c @@ -94,7 +94,7 @@ static int show_tree(const struct object_id *oid, struct strbuf *base, char size_text[24]; if (!strcmp(type, blob_type)) { unsigned long size; - if (oid_object_info(oid, &size) == OBJ_BAD) + if (oid_object_info(the_repository, oid, &size) == OBJ_BAD) xsnprintf(size_text, sizeof(size_text), "BAD"); else diff --git a/builtin/merge.c b/builtin/merge.c index 9db5a2cf16..de62b2c5c6 100644 --- a/builtin/merge.c +++ b/builtin/merge.c @@ -647,7 +647,7 @@ static int try_merge_strategy(const char *strategy, struct commit_list *common, struct commit_list *remoteheads, struct commit *head) { - static struct lock_file lock; + struct lock_file lock = LOCK_INIT; const char *head_arg = "HEAD"; hold_locked_index(&lock, LOCK_DIE_ON_ERROR); @@ -805,7 +805,7 @@ static int merge_trivial(struct commit *head, struct commit_list *remoteheads) { struct object_id result_tree, result_commit; struct commit_list *parents, **pptr = &parents; - static struct lock_file lock; + struct lock_file lock = LOCK_INIT; hold_locked_index(&lock, LOCK_DIE_ON_ERROR); refresh_cache(REFRESH_QUIET); diff --git a/builtin/mktag.c b/builtin/mktag.c index 9f5a50a8fd..82a6e86077 100644 --- a/builtin/mktag.c +++ b/builtin/mktag.c @@ -1,5 +1,6 @@ #include "builtin.h" #include "tag.h" +#include "replace-object.h" /* * A signature file has a very simple fixed format: four lines @@ -24,7 +25,7 @@ static int verify_object(const struct object_id *oid, const char *expected_type) enum object_type type; unsigned long size; void *buffer = read_object_file(oid, &type, &size); - const struct object_id *repl = lookup_replace_object(oid); + const struct object_id *repl = lookup_replace_object(the_repository, oid); if (buffer) { if (type == type_from_string(expected_type)) diff --git a/builtin/mktree.c b/builtin/mktree.c index 263c530315..bb76b469fd 100644 --- a/builtin/mktree.c +++ b/builtin/mktree.c @@ -116,7 +116,7 @@ static void mktree_line(char *buf, size_t len, int nul_term_line, int allow_miss } /* Check the type of object identified by sha1 */ - obj_type = oid_object_info(&oid, NULL); + obj_type = oid_object_info(the_repository, &oid, NULL); if (obj_type < 0) { if (allow_missing) { ; /* no problem - missing objects are presumed to be of the right type */ diff --git a/builtin/mv.c b/builtin/mv.c index 6d141f7a53..80bb967a63 100644 --- a/builtin/mv.c +++ b/builtin/mv.c @@ -72,7 +72,6 @@ static const char *add_slash(const char *path) return path; } -static struct lock_file lock_file; #define SUBMODULE_WITH_GITDIR ((const char *)1) static void prepare_move_submodule(const char *src, int first, @@ -131,6 +130,7 @@ int cmd_mv(int argc, const char **argv, const char *prefix) enum update_mode { BOTH = 0, WORKING_DIRECTORY, INDEX } *modes; struct stat st; struct string_list src_for_dst = STRING_LIST_INIT_NODUP; + struct lock_file lock_file = LOCK_INIT; git_config(git_default_config, NULL); @@ -276,10 +276,12 @@ int cmd_mv(int argc, const char **argv, const char *prefix) die_errno(_("renaming '%s' failed"), src); } if (submodule_gitfile[i]) { - if (submodule_gitfile[i] != SUBMODULE_WITH_GITDIR) - connect_work_tree_and_git_dir(dst, submodule_gitfile[i]); if (!update_path_in_gitmodules(src, dst)) gitmodules_modified = 1; + if (submodule_gitfile[i] != SUBMODULE_WITH_GITDIR) + connect_work_tree_and_git_dir(dst, + submodule_gitfile[i], + 1); } if (mode == WORKING_DIRECTORY) diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c index 68de9134e1..53a0fb6ef2 100644 --- a/builtin/pack-objects.c +++ b/builtin/pack-objects.c @@ -30,6 +30,19 @@ #include "list.h" #include "packfile.h" #include "object-store.h" +#include "dir.h" + +#define IN_PACK(obj) oe_in_pack(&to_pack, obj) +#define SIZE(obj) oe_size(&to_pack, obj) +#define SET_SIZE(obj,size) oe_set_size(&to_pack, obj, size) +#define DELTA_SIZE(obj) oe_delta_size(&to_pack, obj) +#define DELTA(obj) oe_delta(&to_pack, obj) +#define DELTA_CHILD(obj) oe_delta_child(&to_pack, obj) +#define DELTA_SIBLING(obj) oe_delta_sibling(&to_pack, obj) +#define SET_DELTA(obj, val) oe_set_delta(&to_pack, obj, val) +#define SET_DELTA_SIZE(obj, val) oe_set_delta_size(&to_pack, obj, val) +#define SET_DELTA_CHILD(obj, val) oe_set_delta_child(&to_pack, obj, val) +#define SET_DELTA_SIBLING(obj, val) oe_set_delta_sibling(&to_pack, obj, val) static const char *pack_usage[] = { N_("git pack-objects --stdout [<options>...] [< <ref-list> | < <object-list>]"), @@ -45,7 +58,7 @@ static const char *pack_usage[] = { static struct packing_data to_pack; static struct pack_idx_entry **written_list; -static uint32_t nr_result, nr_written; +static uint32_t nr_result, nr_written, nr_seen; static int non_empty; static int reuse_delta = 1, reuse_object = 1; @@ -55,7 +68,8 @@ static int pack_loose_unreachable; static int local; static int have_non_local_packs; static int incremental; -static int ignore_packed_keep; +static int ignore_packed_keep_on_disk; +static int ignore_packed_keep_in_core; static int allow_ofs_delta; static struct pack_idx_option pack_idx_opts; static const char *base_name; @@ -80,7 +94,7 @@ static uint16_t write_bitmap_options; static int exclude_promisor_objects; static unsigned long delta_cache_size = 0; -static unsigned long max_delta_cache_size = 256 * 1024 * 1024; +static unsigned long max_delta_cache_size = DEFAULT_DELTA_CACHE_SIZE; static unsigned long cache_max_small_delta_size = 1000; static unsigned long window_memory_limit = 0; @@ -127,13 +141,14 @@ static void *get_delta(struct object_entry *entry) buf = read_object_file(&entry->idx.oid, &type, &size); if (!buf) die("unable to read %s", oid_to_hex(&entry->idx.oid)); - base_buf = read_object_file(&entry->delta->idx.oid, &type, &base_size); + base_buf = read_object_file(&DELTA(entry)->idx.oid, &type, + &base_size); if (!base_buf) die("unable to read %s", - oid_to_hex(&entry->delta->idx.oid)); + oid_to_hex(&DELTA(entry)->idx.oid)); delta_buf = diff_delta(base_buf, base_size, buf, size, &delta_size, 0); - if (!delta_buf || delta_size != entry->delta_size) + if (!delta_buf || delta_size != DELTA_SIZE(entry)) die("delta size changed"); free(buf); free(base_buf); @@ -266,8 +281,8 @@ static unsigned long write_no_reuse_object(struct hashfile *f, struct object_ent struct git_istream *st = NULL; if (!usable_delta) { - if (entry->type == OBJ_BLOB && - entry->size > big_file_threshold && + if (oe_type(entry) == OBJ_BLOB && + oe_size_greater_than(&to_pack, entry, big_file_threshold) && (st = open_istream(&entry->idx.oid, &type, &size, NULL)) != NULL) buf = NULL; else { @@ -283,15 +298,15 @@ static unsigned long write_no_reuse_object(struct hashfile *f, struct object_ent FREE_AND_NULL(entry->delta_data); entry->z_delta_size = 0; } else if (entry->delta_data) { - size = entry->delta_size; + size = DELTA_SIZE(entry); buf = entry->delta_data; entry->delta_data = NULL; - type = (allow_ofs_delta && entry->delta->idx.offset) ? + type = (allow_ofs_delta && DELTA(entry)->idx.offset) ? OBJ_OFS_DELTA : OBJ_REF_DELTA; } else { buf = get_delta(entry); - size = entry->delta_size; - type = (allow_ofs_delta && entry->delta->idx.offset) ? + size = DELTA_SIZE(entry); + type = (allow_ofs_delta && DELTA(entry)->idx.offset) ? OBJ_OFS_DELTA : OBJ_REF_DELTA; } @@ -315,7 +330,7 @@ static unsigned long write_no_reuse_object(struct hashfile *f, struct object_ent * encoding of the relative offset for the delta * base from this object's position in the pack. */ - off_t ofs = entry->idx.offset - entry->delta->idx.offset; + off_t ofs = entry->idx.offset - DELTA(entry)->idx.offset; unsigned pos = sizeof(dheader) - 1; dheader[pos] = ofs & 127; while (ofs >>= 7) @@ -341,7 +356,7 @@ static unsigned long write_no_reuse_object(struct hashfile *f, struct object_ent return 0; } hashwrite(f, header, hdrlen); - hashwrite(f, entry->delta->idx.oid.hash, 20); + hashwrite(f, DELTA(entry)->idx.oid.hash, 20); hdrlen += 20; } else { if (limit && hdrlen + datalen + 20 >= limit) { @@ -367,21 +382,22 @@ static unsigned long write_no_reuse_object(struct hashfile *f, struct object_ent static off_t write_reuse_object(struct hashfile *f, struct object_entry *entry, unsigned long limit, int usable_delta) { - struct packed_git *p = entry->in_pack; + struct packed_git *p = IN_PACK(entry); struct pack_window *w_curs = NULL; struct revindex_entry *revidx; off_t offset; - enum object_type type = entry->type; + enum object_type type = oe_type(entry); off_t datalen; unsigned char header[MAX_PACK_OBJECT_HEADER], dheader[MAX_PACK_OBJECT_HEADER]; unsigned hdrlen; + unsigned long entry_size = SIZE(entry); - if (entry->delta) - type = (allow_ofs_delta && entry->delta->idx.offset) ? + if (DELTA(entry)) + type = (allow_ofs_delta && DELTA(entry)->idx.offset) ? OBJ_OFS_DELTA : OBJ_REF_DELTA; hdrlen = encode_in_pack_object_header(header, sizeof(header), - type, entry->size); + type, entry_size); offset = entry->in_pack_offset; revidx = find_pack_revindex(p, offset); @@ -398,7 +414,7 @@ static off_t write_reuse_object(struct hashfile *f, struct object_entry *entry, datalen -= entry->in_pack_header_size; if (!pack_to_stdout && p->index_version == 1 && - check_pack_inflate(p, &w_curs, offset, datalen, entry->size)) { + check_pack_inflate(p, &w_curs, offset, datalen, entry_size)) { error("corrupt packed object for %s", oid_to_hex(&entry->idx.oid)); unuse_pack(&w_curs); @@ -406,7 +422,7 @@ static off_t write_reuse_object(struct hashfile *f, struct object_entry *entry, } if (type == OBJ_OFS_DELTA) { - off_t ofs = entry->idx.offset - entry->delta->idx.offset; + off_t ofs = entry->idx.offset - DELTA(entry)->idx.offset; unsigned pos = sizeof(dheader) - 1; dheader[pos] = ofs & 127; while (ofs >>= 7) @@ -425,7 +441,7 @@ static off_t write_reuse_object(struct hashfile *f, struct object_entry *entry, return 0; } hashwrite(f, header, hdrlen); - hashwrite(f, entry->delta->idx.oid.hash, 20); + hashwrite(f, DELTA(entry)->idx.oid.hash, 20); hdrlen += 20; reused_delta++; } else { @@ -465,28 +481,29 @@ static off_t write_object(struct hashfile *f, else limit = pack_size_limit - write_offset; - if (!entry->delta) + if (!DELTA(entry)) usable_delta = 0; /* no delta */ else if (!pack_size_limit) usable_delta = 1; /* unlimited packfile */ - else if (entry->delta->idx.offset == (off_t)-1) + else if (DELTA(entry)->idx.offset == (off_t)-1) usable_delta = 0; /* base was written to another pack */ - else if (entry->delta->idx.offset) + else if (DELTA(entry)->idx.offset) usable_delta = 1; /* base already exists in this pack */ else usable_delta = 0; /* base could end up in another pack */ if (!reuse_object) to_reuse = 0; /* explicit */ - else if (!entry->in_pack) + else if (!IN_PACK(entry)) to_reuse = 0; /* can't reuse what we don't have */ - else if (entry->type == OBJ_REF_DELTA || entry->type == OBJ_OFS_DELTA) + else if (oe_type(entry) == OBJ_REF_DELTA || + oe_type(entry) == OBJ_OFS_DELTA) /* check_object() decided it for us ... */ to_reuse = usable_delta; /* ... but pack split may override that */ - else if (entry->type != entry->in_pack_type) + else if (oe_type(entry) != entry->in_pack_type) to_reuse = 0; /* pack has delta which is unusable */ - else if (entry->delta) + else if (DELTA(entry)) to_reuse = 0; /* we want to pack afresh */ else to_reuse = 1; /* we have it in-pack undeltified, @@ -538,12 +555,12 @@ static enum write_one_status write_one(struct hashfile *f, } /* if we are deltified, write out base object first. */ - if (e->delta) { + if (DELTA(e)) { e->idx.offset = 1; /* now recurse */ - switch (write_one(f, e->delta, offset)) { + switch (write_one(f, DELTA(e), offset)) { case WRITE_ONE_RECURSIVE: /* we cannot depend on this one */ - e->delta = NULL; + SET_DELTA(e, NULL); break; default: break; @@ -605,34 +622,34 @@ static void add_descendants_to_write_order(struct object_entry **wo, /* add this node... */ add_to_write_order(wo, endp, e); /* all its siblings... */ - for (s = e->delta_sibling; s; s = s->delta_sibling) { + for (s = DELTA_SIBLING(e); s; s = DELTA_SIBLING(s)) { add_to_write_order(wo, endp, s); } } /* drop down a level to add left subtree nodes if possible */ - if (e->delta_child) { + if (DELTA_CHILD(e)) { add_to_order = 1; - e = e->delta_child; + e = DELTA_CHILD(e); } else { add_to_order = 0; /* our sibling might have some children, it is next */ - if (e->delta_sibling) { - e = e->delta_sibling; + if (DELTA_SIBLING(e)) { + e = DELTA_SIBLING(e); continue; } /* go back to our parent node */ - e = e->delta; - while (e && !e->delta_sibling) { + e = DELTA(e); + while (e && !DELTA_SIBLING(e)) { /* we're on the right side of a subtree, keep * going up until we can go right again */ - e = e->delta; + e = DELTA(e); } if (!e) { /* done- we hit our original root node */ return; } /* pass it off to sibling at this level */ - e = e->delta_sibling; + e = DELTA_SIBLING(e); } }; } @@ -643,7 +660,7 @@ static void add_family_to_write_order(struct object_entry **wo, { struct object_entry *root; - for (root = e; root->delta; root = root->delta) + for (root = e; DELTA(root); root = DELTA(root)) ; /* nothing */ add_descendants_to_write_order(wo, endp, root); } @@ -658,8 +675,8 @@ static struct object_entry **compute_write_order(void) for (i = 0; i < to_pack.nr_objects; i++) { objects[i].tagged = 0; objects[i].filled = 0; - objects[i].delta_child = NULL; - objects[i].delta_sibling = NULL; + SET_DELTA_CHILD(&objects[i], NULL); + SET_DELTA_SIBLING(&objects[i], NULL); } /* @@ -669,11 +686,11 @@ static struct object_entry **compute_write_order(void) */ for (i = to_pack.nr_objects; i > 0;) { struct object_entry *e = &objects[--i]; - if (!e->delta) + if (!DELTA(e)) continue; /* Mark me as the first child */ - e->delta_sibling = e->delta->delta_child; - e->delta->delta_child = e; + e->delta_sibling_idx = DELTA(e)->delta_child_idx; + SET_DELTA_CHILD(DELTA(e), e); } /* @@ -705,8 +722,8 @@ static struct object_entry **compute_write_order(void) * And then all remaining commits and tags. */ for (i = last_untagged; i < to_pack.nr_objects; i++) { - if (objects[i].type != OBJ_COMMIT && - objects[i].type != OBJ_TAG) + if (oe_type(&objects[i]) != OBJ_COMMIT && + oe_type(&objects[i]) != OBJ_TAG) continue; add_to_write_order(wo, &wo_end, &objects[i]); } @@ -715,7 +732,7 @@ static struct object_entry **compute_write_order(void) * And then all the trees. */ for (i = last_untagged; i < to_pack.nr_objects; i++) { - if (objects[i].type != OBJ_TREE) + if (oe_type(&objects[i]) != OBJ_TREE) continue; add_to_write_order(wo, &wo_end, &objects[i]); } @@ -837,11 +854,11 @@ static void write_pack_file(void) * If so, rewrite it like in fast-import */ if (pack_to_stdout) { - hashclose(f, oid.hash, CSUM_CLOSE); + finalize_hashfile(f, oid.hash, CSUM_HASH_IN_STREAM | CSUM_CLOSE); } else if (nr_written == nr_remaining) { - hashclose(f, oid.hash, CSUM_FSYNC); + finalize_hashfile(f, oid.hash, CSUM_HASH_IN_STREAM | CSUM_FSYNC | CSUM_CLOSE); } else { - int fd = hashclose(f, oid.hash, 0); + int fd = finalize_hashfile(f, oid.hash, 0); fixup_pack_header_footer(fd, oid.hash, pack_tmp_name, nr_written, oid.hash, offset); close(fd); @@ -878,7 +895,8 @@ static void write_pack_file(void) if (write_bitmap_index) { bitmap_writer_set_checksum(oid.hash); - bitmap_writer_build_type_index(written_list, nr_written); + bitmap_writer_build_type_index( + &to_pack, written_list, nr_written); } finish_tmp_packfile(&tmpname, pack_tmp_name, @@ -982,13 +1000,16 @@ static int want_found_object(int exclude, struct packed_git *p) * Otherwise, we signal "-1" at the end to tell the caller that we do * not know either way, and it needs to check more packs. */ - if (!ignore_packed_keep && + if (!ignore_packed_keep_on_disk && + !ignore_packed_keep_in_core && (!local || !have_non_local_packs)) return 1; if (local && !p->pack_local) return 0; - if (ignore_packed_keep && p->pack_local && p->pack_keep) + if (p->pack_local && + ((ignore_packed_keep_on_disk && p->pack_keep) || + (ignore_packed_keep_in_core && p->pack_keep_in_core))) return 0; /* we don't know yet; keep looking for more packs */ @@ -1066,14 +1087,13 @@ static void create_object_entry(const struct object_id *oid, entry = packlist_alloc(&to_pack, oid->hash, index_pos); entry->hash = hash; - if (type) - entry->type = type; + oe_set_type(entry, type); if (exclude) entry->preferred_base = 1; else nr_result++; if (found_pack) { - entry->in_pack = found_pack; + oe_set_in_pack(&to_pack, entry, found_pack); entry->in_pack_offset = found_offset; } @@ -1091,6 +1111,8 @@ static int add_object_entry(const struct object_id *oid, enum object_type type, off_t found_offset = 0; uint32_t index_pos; + display_progress(progress_state, ++nr_seen); + if (have_duplicate_entry(oid, exclude, &index_pos)) return 0; @@ -1106,8 +1128,6 @@ static int add_object_entry(const struct object_id *oid, enum object_type type, create_object_entry(oid, type, pack_name_hash(name), exclude, name && no_try_delta(name), index_pos, found_pack, found_offset); - - display_progress(progress_state, nr_result); return 1; } @@ -1118,6 +1138,8 @@ static int add_object_entry_from_bitmap(const struct object_id *oid, { uint32_t index_pos; + display_progress(progress_state, ++nr_seen); + if (have_duplicate_entry(oid, 0, &index_pos)) return 0; @@ -1125,8 +1147,6 @@ static int add_object_entry_from_bitmap(const struct object_id *oid, return 0; create_object_entry(oid, type, name_hash, 0, 0, index_pos, pack, offset); - - display_progress(progress_state, nr_result); return 1; } @@ -1398,8 +1418,10 @@ static void cleanup_preferred_base(void) static void check_object(struct object_entry *entry) { - if (entry->in_pack) { - struct packed_git *p = entry->in_pack; + unsigned long canonical_size; + + if (IN_PACK(entry)) { + struct packed_git *p = IN_PACK(entry); struct pack_window *w_curs = NULL; const unsigned char *base_ref = NULL; struct object_entry *base_entry; @@ -1407,6 +1429,8 @@ static void check_object(struct object_entry *entry) unsigned long avail; off_t ofs; unsigned char *buf, c; + enum object_type type; + unsigned long in_pack_size; buf = use_pack(p, &w_curs, entry->in_pack_offset, &avail); @@ -1415,11 +1439,15 @@ static void check_object(struct object_entry *entry) * since non-delta representations could still be reused. */ used = unpack_object_header_buffer(buf, avail, - &entry->in_pack_type, - &entry->size); + &type, + &in_pack_size); if (used == 0) goto give_up; + if (type < 0) + BUG("invalid type %d", type); + entry->in_pack_type = type; + /* * Determine if this is a delta and if so whether we can * reuse it or not. Otherwise let's find out as cheaply as @@ -1428,9 +1456,10 @@ static void check_object(struct object_entry *entry) switch (entry->in_pack_type) { default: /* Not a delta hence we've already got all we need. */ - entry->type = entry->in_pack_type; + oe_set_type(entry, entry->in_pack_type); + SET_SIZE(entry, in_pack_size); entry->in_pack_header_size = used; - if (entry->type < OBJ_COMMIT || entry->type > OBJ_BLOB) + if (oe_type(entry) < OBJ_COMMIT || oe_type(entry) > OBJ_BLOB) goto give_up; unuse_pack(&w_curs); return; @@ -1484,25 +1513,29 @@ static void check_object(struct object_entry *entry) * deltify other objects against, in order to avoid * circular deltas. */ - entry->type = entry->in_pack_type; - entry->delta = base_entry; - entry->delta_size = entry->size; - entry->delta_sibling = base_entry->delta_child; - base_entry->delta_child = entry; + oe_set_type(entry, entry->in_pack_type); + SET_SIZE(entry, in_pack_size); /* delta size */ + SET_DELTA(entry, base_entry); + SET_DELTA_SIZE(entry, in_pack_size); + entry->delta_sibling_idx = base_entry->delta_child_idx; + SET_DELTA_CHILD(base_entry, entry); unuse_pack(&w_curs); return; } - if (entry->type) { + if (oe_type(entry)) { + off_t delta_pos; + /* * This must be a delta and we already know what the * final object type is. Let's extract the actual * object size from the delta header. */ - entry->size = get_size_from_delta(p, &w_curs, - entry->in_pack_offset + entry->in_pack_header_size); - if (entry->size == 0) + delta_pos = entry->in_pack_offset + entry->in_pack_header_size; + canonical_size = get_size_from_delta(p, &w_curs, delta_pos); + if (canonical_size == 0) goto give_up; + SET_SIZE(entry, canonical_size); unuse_pack(&w_curs); return; } @@ -1516,27 +1549,34 @@ static void check_object(struct object_entry *entry) unuse_pack(&w_curs); } - entry->type = oid_object_info(&entry->idx.oid, &entry->size); - /* - * The error condition is checked in prepare_pack(). This is - * to permit a missing preferred base object to be ignored - * as a preferred base. Doing so can result in a larger - * pack file, but the transfer will still take place. - */ + oe_set_type(entry, + oid_object_info(the_repository, &entry->idx.oid, &canonical_size)); + if (entry->type_valid) { + SET_SIZE(entry, canonical_size); + } else { + /* + * Bad object type is checked in prepare_pack(). This is + * to permit a missing preferred base object to be ignored + * as a preferred base. Doing so can result in a larger + * pack file, but the transfer will still take place. + */ + } } static int pack_offset_sort(const void *_a, const void *_b) { const struct object_entry *a = *(struct object_entry **)_a; const struct object_entry *b = *(struct object_entry **)_b; + const struct packed_git *a_in_pack = IN_PACK(a); + const struct packed_git *b_in_pack = IN_PACK(b); /* avoid filesystem trashing with loose objects */ - if (!a->in_pack && !b->in_pack) + if (!a_in_pack && !b_in_pack) return oidcmp(&a->idx.oid, &b->idx.oid); - if (a->in_pack < b->in_pack) + if (a_in_pack < b_in_pack) return -1; - if (a->in_pack > b->in_pack) + if (a_in_pack > b_in_pack) return 1; return a->in_pack_offset < b->in_pack_offset ? -1 : (a->in_pack_offset > b->in_pack_offset); @@ -1557,29 +1597,37 @@ static int pack_offset_sort(const void *_a, const void *_b) */ static void drop_reused_delta(struct object_entry *entry) { - struct object_entry **p = &entry->delta->delta_child; + unsigned *idx = &to_pack.objects[entry->delta_idx - 1].delta_child_idx; struct object_info oi = OBJECT_INFO_INIT; + enum object_type type; + unsigned long size; + + while (*idx) { + struct object_entry *oe = &to_pack.objects[*idx - 1]; - while (*p) { - if (*p == entry) - *p = (*p)->delta_sibling; + if (oe == entry) + *idx = oe->delta_sibling_idx; else - p = &(*p)->delta_sibling; + idx = &oe->delta_sibling_idx; } - entry->delta = NULL; + SET_DELTA(entry, NULL); entry->depth = 0; - oi.sizep = &entry->size; - oi.typep = &entry->type; - if (packed_object_info(entry->in_pack, entry->in_pack_offset, &oi) < 0) { + oi.sizep = &size; + oi.typep = &type; + if (packed_object_info(the_repository, IN_PACK(entry), entry->in_pack_offset, &oi) < 0) { /* * We failed to get the info from this pack for some reason; * fall back to sha1_object_info, which may find another copy. - * And if that fails, the error will be recorded in entry->type + * And if that fails, the error will be recorded in oe_type(entry) * and dealt with in prepare_pack(). */ - entry->type = oid_object_info(&entry->idx.oid, &entry->size); + oe_set_type(entry, + oid_object_info(the_repository, &entry->idx.oid, &size)); + } else { + oe_set_type(entry, type); } + SET_SIZE(entry, size); } /* @@ -1603,7 +1651,7 @@ static void break_delta_chains(struct object_entry *entry) for (cur = entry, total_depth = 0; cur; - cur = cur->delta, total_depth++) { + cur = DELTA(cur), total_depth++) { if (cur->dfs_state == DFS_DONE) { /* * We've already seen this object and know it isn't @@ -1628,7 +1676,7 @@ static void break_delta_chains(struct object_entry *entry) * it's not a delta, we're done traversing, but we'll mark it * done to save time on future traversals. */ - if (!cur->delta) { + if (!DELTA(cur)) { cur->dfs_state = DFS_DONE; break; } @@ -1651,7 +1699,7 @@ static void break_delta_chains(struct object_entry *entry) * We keep all commits in the chain that we examined. */ cur->dfs_state = DFS_ACTIVE; - if (cur->delta->dfs_state == DFS_ACTIVE) { + if (DELTA(cur)->dfs_state == DFS_ACTIVE) { drop_reused_delta(cur); cur->dfs_state = DFS_DONE; break; @@ -1666,7 +1714,7 @@ static void break_delta_chains(struct object_entry *entry) * an extra "next" pointer to keep going after we reset cur->delta. */ for (cur = entry; cur; cur = next) { - next = cur->delta; + next = DELTA(cur); /* * We should have a chain of zero or more ACTIVE states down to @@ -1711,6 +1759,10 @@ static void get_object_details(void) uint32_t i; struct object_entry **sorted_by_offset; + if (progress) + progress_state = start_progress(_("Counting objects"), + to_pack.nr_objects); + sorted_by_offset = xcalloc(to_pack.nr_objects, sizeof(struct object_entry *)); for (i = 0; i < to_pack.nr_objects; i++) sorted_by_offset[i] = to_pack.objects + i; @@ -1719,9 +1771,12 @@ static void get_object_details(void) for (i = 0; i < to_pack.nr_objects; i++) { struct object_entry *entry = sorted_by_offset[i]; check_object(entry); - if (big_file_threshold < entry->size) + if (entry->type_valid && + oe_size_greater_than(&to_pack, entry, big_file_threshold)) entry->no_try_delta = 1; + display_progress(progress_state, i + 1); } + stop_progress(&progress_state); /* * This must happen in a second pass, since we rely on the delta @@ -1746,10 +1801,14 @@ static int type_size_sort(const void *_a, const void *_b) { const struct object_entry *a = *(struct object_entry **)_a; const struct object_entry *b = *(struct object_entry **)_b; + enum object_type a_type = oe_type(a); + enum object_type b_type = oe_type(b); + unsigned long a_size = SIZE(a); + unsigned long b_size = SIZE(b); - if (a->type > b->type) + if (a_type > b_type) return -1; - if (a->type < b->type) + if (a_type < b_type) return 1; if (a->hash > b->hash) return -1; @@ -1759,9 +1818,9 @@ static int type_size_sort(const void *_a, const void *_b) return -1; if (a->preferred_base < b->preferred_base) return 1; - if (a->size > b->size) + if (a_size > b_size) return -1; - if (a->size < b->size) + if (a_size < b_size) return 1; return a < b ? -1 : (a > b); /* newest first */ } @@ -1814,6 +1873,46 @@ static pthread_mutex_t progress_mutex; #endif +/* + * Return the size of the object without doing any delta + * reconstruction (so non-deltas are true object sizes, but deltas + * return the size of the delta data). + */ +unsigned long oe_get_size_slow(struct packing_data *pack, + const struct object_entry *e) +{ + struct packed_git *p; + struct pack_window *w_curs; + unsigned char *buf; + enum object_type type; + unsigned long used, avail, size; + + if (e->type_ != OBJ_OFS_DELTA && e->type_ != OBJ_REF_DELTA) { + read_lock(); + if (oid_object_info(the_repository, &e->idx.oid, &size) < 0) + die(_("unable to get size of %s"), + oid_to_hex(&e->idx.oid)); + read_unlock(); + return size; + } + + p = oe_in_pack(pack, e); + if (!p) + BUG("when e->type is a delta, it must belong to a pack"); + + read_lock(); + w_curs = NULL; + buf = use_pack(p, &w_curs, e->in_pack_offset, &avail); + used = unpack_object_header_buffer(buf, avail, &type, &size); + if (used == 0) + die(_("unable to parse object header of %s"), + oid_to_hex(&e->idx.oid)); + + unuse_pack(&w_curs); + read_unlock(); + return size; +} + static int try_delta(struct unpacked *trg, struct unpacked *src, unsigned max_depth, unsigned long *mem_usage) { @@ -1825,7 +1924,7 @@ static int try_delta(struct unpacked *trg, struct unpacked *src, void *delta_buf; /* Don't bother doing diffs between different types */ - if (trg_entry->type != src_entry->type) + if (oe_type(trg_entry) != oe_type(src_entry)) return -1; /* @@ -1836,8 +1935,8 @@ static int try_delta(struct unpacked *trg, struct unpacked *src, * it, we will still save the transfer cost, as we already know * the other side has it and we won't send src_entry at all. */ - if (reuse_delta && trg_entry->in_pack && - trg_entry->in_pack == src_entry->in_pack && + if (reuse_delta && IN_PACK(trg_entry) && + IN_PACK(trg_entry) == IN_PACK(src_entry) && !src_entry->preferred_base && trg_entry->in_pack_type != OBJ_REF_DELTA && trg_entry->in_pack_type != OBJ_OFS_DELTA) @@ -1848,19 +1947,19 @@ static int try_delta(struct unpacked *trg, struct unpacked *src, return 0; /* Now some size filtering heuristics. */ - trg_size = trg_entry->size; - if (!trg_entry->delta) { + trg_size = SIZE(trg_entry); + if (!DELTA(trg_entry)) { max_size = trg_size/2 - 20; ref_depth = 1; } else { - max_size = trg_entry->delta_size; + max_size = DELTA_SIZE(trg_entry); ref_depth = trg->depth; } max_size = (uint64_t)max_size * (max_depth - src->depth) / (max_depth - ref_depth + 1); if (max_size == 0) return 0; - src_size = src_entry->size; + src_size = SIZE(src_entry); sizediff = src_size < trg_size ? trg_size - src_size : 0; if (sizediff >= max_size) return 0; @@ -1922,10 +2021,14 @@ static int try_delta(struct unpacked *trg, struct unpacked *src, delta_buf = create_delta(src->index, trg->data, trg_size, &delta_size, max_size); if (!delta_buf) return 0; + if (delta_size >= (1U << OE_DELTA_SIZE_BITS)) { + free(delta_buf); + return 0; + } - if (trg_entry->delta) { + if (DELTA(trg_entry)) { /* Prefer only shallower same-sized deltas. */ - if (delta_size == trg_entry->delta_size && + if (delta_size == DELTA_SIZE(trg_entry) && src->depth + 1 >= trg->depth) { free(delta_buf); return 0; @@ -1940,7 +2043,7 @@ static int try_delta(struct unpacked *trg, struct unpacked *src, free(trg_entry->delta_data); cache_lock(); if (trg_entry->delta_data) { - delta_cache_size -= trg_entry->delta_size; + delta_cache_size -= DELTA_SIZE(trg_entry); trg_entry->delta_data = NULL; } if (delta_cacheable(src_size, trg_size, delta_size)) { @@ -1952,8 +2055,8 @@ static int try_delta(struct unpacked *trg, struct unpacked *src, free(delta_buf); } - trg_entry->delta = src_entry; - trg_entry->delta_size = delta_size; + SET_DELTA(trg_entry, src_entry); + SET_DELTA_SIZE(trg_entry, delta_size); trg->depth = src->depth + 1; return 1; @@ -1961,13 +2064,13 @@ static int try_delta(struct unpacked *trg, struct unpacked *src, static unsigned int check_delta_limit(struct object_entry *me, unsigned int n) { - struct object_entry *child = me->delta_child; + struct object_entry *child = DELTA_CHILD(me); unsigned int m = n; while (child) { unsigned int c = check_delta_limit(child, n + 1); if (m < c) m = c; - child = child->delta_sibling; + child = DELTA_SIBLING(child); } return m; } @@ -1978,7 +2081,7 @@ static unsigned long free_unpacked(struct unpacked *n) free_delta_index(n->index); n->index = NULL; if (n->data) { - freed_mem += n->entry->size; + freed_mem += SIZE(n->entry); FREE_AND_NULL(n->data); } n->entry = NULL; @@ -2036,7 +2139,7 @@ static void find_deltas(struct object_entry **list, unsigned *list_size, * otherwise they would become too deep. */ max_depth = depth; - if (entry->delta_child) { + if (DELTA_CHILD(entry)) { max_depth -= check_delta_limit(entry, 0); if (max_depth <= 0) goto next; @@ -2074,19 +2177,26 @@ static void find_deltas(struct object_entry **list, unsigned *list_size, * between writes at that moment. */ if (entry->delta_data && !pack_to_stdout) { - entry->z_delta_size = do_compress(&entry->delta_data, - entry->delta_size); - cache_lock(); - delta_cache_size -= entry->delta_size; - delta_cache_size += entry->z_delta_size; - cache_unlock(); + unsigned long size; + + size = do_compress(&entry->delta_data, DELTA_SIZE(entry)); + if (size < (1U << OE_Z_DELTA_BITS)) { + entry->z_delta_size = size; + cache_lock(); + delta_cache_size -= DELTA_SIZE(entry); + delta_cache_size += entry->z_delta_size; + cache_unlock(); + } else { + FREE_AND_NULL(entry->delta_data); + entry->z_delta_size = 0; + } } /* if we made n a delta, and if n is already at max * depth, leaving it in the window is pointless. we * should evict it first. */ - if (entry->delta && max_depth <= n->depth) + if (DELTA(entry) && max_depth <= n->depth) continue; /* @@ -2094,7 +2204,7 @@ static void find_deltas(struct object_entry **list, unsigned *list_size, * currently deltified object, to keep it longer. It will * be the first base object to be attempted next. */ - if (entry->delta) { + if (DELTA(entry)) { struct unpacked swap = array[best_base]; int dist = (window + idx - best_base) % window; int dst = best_base; @@ -2415,13 +2525,14 @@ static void prepare_pack(int window, int depth) for (i = 0; i < to_pack.nr_objects; i++) { struct object_entry *entry = to_pack.objects + i; - if (entry->delta) + if (DELTA(entry)) /* This happens if we decided to reuse existing * delta from a pack. "reuse_delta &&" is implied. */ continue; - if (entry->size < 50) + if (!entry->type_valid || + oe_size_less_than(&to_pack, entry, 50)) continue; if (entry->no_try_delta) @@ -2429,11 +2540,11 @@ static void prepare_pack(int window, int depth) if (!entry->preferred_base) { nr_deltas++; - if (entry->type < 0) + if (oe_type(entry) < 0) die("unable to get type of object %s", oid_to_hex(&entry->idx.oid)); } else { - if (entry->type < 0) { + if (oe_type(entry) < 0) { /* * This object is not found, but we * don't have to include it anyway. @@ -2542,7 +2653,7 @@ static void read_object_list_from_stdin(void) die("expected object ID, got garbage:\n %s", line); add_preferred_base_object(p + 1); - add_object_entry(&oid, 0, p + 1, 0); + add_object_entry(&oid, OBJ_NONE, p + 1, 0); } } @@ -2675,7 +2786,7 @@ static void add_objects_in_unpacked_packs(struct rev_info *revs) struct object_id oid; struct object *o; - if (!p->pack_local || p->pack_keep) + if (!p->pack_local || p->pack_keep || p->pack_keep_in_core) continue; if (open_pack_index(p)) die("cannot open pack index"); @@ -2706,7 +2817,7 @@ static void add_objects_in_unpacked_packs(struct rev_info *revs) static int add_loose_object(const struct object_id *oid, const char *path, void *data) { - enum object_type type = oid_object_info(oid, NULL); + enum object_type type = oid_object_info(the_repository, oid, NULL); if (type < 0) { warning("loose object at %s could not be examined", path); @@ -2738,7 +2849,8 @@ static int has_sha1_pack_kept_or_nonlocal(const struct object_id *oid) get_packed_git(the_repository); while (p) { - if ((!p->pack_local || p->pack_keep) && + if ((!p->pack_local || p->pack_keep || + p->pack_keep_in_core) && find_pack_entry_one(oid->hash, p)) { last_found = p; return 1; @@ -2781,7 +2893,7 @@ static void loosen_unused_packed_objects(struct rev_info *revs) struct object_id oid; for (p = get_packed_git(the_repository); p; p = p->next) { - if (!p->pack_local || p->pack_keep) + if (!p->pack_local || p->pack_keep || p->pack_keep_in_core) continue; if (open_pack_index(p)) @@ -2807,7 +2919,8 @@ static int pack_options_allow_reuse(void) { return pack_to_stdout && allow_ofs_delta && - !ignore_packed_keep && + !ignore_packed_keep_on_disk && + !ignore_packed_keep_in_core && (!local || !have_non_local_packs) && !incremental; } @@ -2916,6 +3029,32 @@ static void get_object_list(int ac, const char **av) oid_array_clear(&recent_objects); } +static void add_extra_kept_packs(const struct string_list *names) +{ + struct packed_git *p; + + if (!names->nr) + return; + + for (p = get_packed_git(the_repository); p; p = p->next) { + const char *name = basename(p->pack_name); + int i; + + if (!p->pack_local) + continue; + + for (i = 0; i < names->nr; i++) + if (!fspathcmp(name, names->items[i].string)) + break; + + if (i < names->nr) { + p->pack_keep_in_core = 1; + ignore_packed_keep_in_core = 1; + continue; + } + } +} + static int option_parse_index_version(const struct option *opt, const char *arg, int unset) { @@ -2955,6 +3094,7 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix) struct argv_array rp = ARGV_ARRAY_INIT; int rev_list_unpacked = 0, rev_list_all = 0, rev_list_reflog = 0; int rev_list_index = 0; + struct string_list keep_pack_list = STRING_LIST_INIT_NODUP; struct option pack_objects_options[] = { OPT_SET_INT('q', "quiet", &progress, N_("do not show progress meter"), 0), @@ -3019,8 +3159,10 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix) N_("create thin packs")), OPT_BOOL(0, "shallow", &shallow, N_("create packs suitable for shallow fetches")), - OPT_BOOL(0, "honor-pack-keep", &ignore_packed_keep, + OPT_BOOL(0, "honor-pack-keep", &ignore_packed_keep_on_disk, N_("ignore packs that have companion .keep file")), + OPT_STRING_LIST(0, "keep-pack", &keep_pack_list, N_("name"), + N_("ignore this pack")), OPT_INTEGER(0, "compression", &pack_compression_level, N_("pack compression level")), OPT_SET_INT(0, "keep-true-parents", &grafts_replace_parents, @@ -3038,6 +3180,9 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix) OPT_END(), }; + if (DFS_NUM_STATES > (1 << OE_DFS_STATE_BITS)) + BUG("too many dfs states, increase OE_DFS_STATE_BITS"); + check_replace_refs = 0; reset_pack_idx_option(&pack_idx_opts); @@ -3054,6 +3199,17 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix) if (pack_to_stdout != !base_name || argc) usage_with_options(pack_usage, pack_objects_options); + if (depth >= (1 << OE_DEPTH_BITS)) { + warning(_("delta chain depth %d is too deep, forcing %d"), + depth, (1 << OE_DEPTH_BITS) - 1); + depth = (1 << OE_DEPTH_BITS) - 1; + } + if (cache_max_small_delta_size >= (1U << OE_Z_DELTA_BITS)) { + warning(_("pack.deltaCacheLimit is too high, forcing %d"), + (1U << OE_Z_DELTA_BITS) - 1); + cache_max_small_delta_size = (1U << OE_Z_DELTA_BITS) - 1; + } + argv_array_push(&rp, "pack-objects"); if (thin) { use_internal_rev_list = 1; @@ -3085,6 +3241,8 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix) fetch_if_missing = 0; argv_array_push(&rp, "--exclude-promisor-objects"); } + if (unpack_unreachable || keep_unreachable || pack_loose_unreachable) + use_internal_rev_list = 1; if (!reuse_object) reuse_delta = 0; @@ -3148,19 +3306,20 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix) if (progress && all_progress_implied) progress = 2; - if (ignore_packed_keep) { + add_extra_kept_packs(&keep_pack_list); + if (ignore_packed_keep_on_disk) { struct packed_git *p; for (p = get_packed_git(the_repository); p; p = p->next) if (p->pack_local && p->pack_keep) break; if (!p) /* no keep-able packs found */ - ignore_packed_keep = 0; + ignore_packed_keep_on_disk = 0; } if (local) { /* - * unlike ignore_packed_keep above, we do not want to - * unset "local" based on looking at packs, as it - * also covers non-local objects + * unlike ignore_packed_keep_on_disk above, we do not + * want to unset "local" based on looking at packs, as + * it also covers non-local objects */ struct packed_git *p; for (p = get_packed_git(the_repository); p; p = p->next) { @@ -3171,8 +3330,10 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix) } } + prepare_packing_data(&to_pack); + if (progress) - progress_state = start_progress(_("Counting objects"), 0); + progress_state = start_progress(_("Enumerating objects"), 0); if (!use_internal_rev_list) read_object_list_from_stdin(); else { diff --git a/builtin/pack-refs.c b/builtin/pack-refs.c index b106a392a4..f3353564f9 100644 --- a/builtin/pack-refs.c +++ b/builtin/pack-refs.c @@ -1,6 +1,7 @@ #include "builtin.h" #include "parse-options.h" #include "refs.h" +#include "repository.h" static char const * const pack_refs_usage[] = { N_("git pack-refs [<options>]"), @@ -17,5 +18,5 @@ int cmd_pack_refs(int argc, const char **argv, const char *prefix) }; if (parse_options(argc, argv, prefix, opts, pack_refs_usage, 0)) usage_with_options(pack_refs_usage, opts); - return refs_pack_refs(get_main_ref_store(), flags); + return refs_pack_refs(get_main_ref_store(the_repository), flags); } diff --git a/builtin/prune.c b/builtin/prune.c index 38ced18dad..518ffbea13 100644 --- a/builtin/prune.c +++ b/builtin/prune.c @@ -50,7 +50,8 @@ static int prune_object(const struct object_id *oid, const char *fullpath, if (st.st_mtime > expire) return 0; if (show_only || verbose) { - enum object_type type = oid_object_info(oid, NULL); + enum object_type type = oid_object_info(the_repository, oid, + NULL); printf("%s %s\n", oid_to_hex(oid), (type > 0) ? type_name(type) : "unknown"); } diff --git a/builtin/pull.c b/builtin/pull.c index a886fa8ad4..25f7db5b3a 100644 --- a/builtin/pull.c +++ b/builtin/pull.c @@ -27,14 +27,16 @@ enum rebase_type { REBASE_FALSE = 0, REBASE_TRUE, REBASE_PRESERVE, + REBASE_MERGES, REBASE_INTERACTIVE }; /** * Parses the value of --rebase. If value is a false value, returns * REBASE_FALSE. If value is a true value, returns REBASE_TRUE. If value is - * "preserve", returns REBASE_PRESERVE. If value is a invalid value, dies with - * a fatal error if fatal is true, otherwise returns REBASE_INVALID. + * "merges", returns REBASE_MERGES. If value is "preserve", returns + * REBASE_PRESERVE. If value is a invalid value, dies with a fatal error if + * fatal is true, otherwise returns REBASE_INVALID. */ static enum rebase_type parse_config_rebase(const char *key, const char *value, int fatal) @@ -47,6 +49,8 @@ static enum rebase_type parse_config_rebase(const char *key, const char *value, return REBASE_TRUE; else if (!strcmp(value, "preserve")) return REBASE_PRESERVE; + else if (!strcmp(value, "merges")) + return REBASE_MERGES; else if (!strcmp(value, "interactive")) return REBASE_INTERACTIVE; @@ -130,7 +134,7 @@ static struct option pull_options[] = { /* Options passed to git-merge or git-rebase */ OPT_GROUP(N_("Options related to merging")), { OPTION_CALLBACK, 'r', "rebase", &opt_rebase, - "false|true|preserve|interactive", + "false|true|merges|preserve|interactive", N_("incorporate changes by rebasing rather than merging"), PARSE_OPT_OPTARG, parse_opt_rebase }, OPT_PASSTHRU('n', NULL, &opt_diffstat, NULL, @@ -800,7 +804,9 @@ static int run_rebase(const struct object_id *curr_head, argv_push_verbosity(&args); /* Options passed to git-rebase */ - if (opt_rebase == REBASE_PRESERVE) + if (opt_rebase == REBASE_MERGES) + argv_array_push(&args, "--rebase-merges"); + else if (opt_rebase == REBASE_PRESERVE) argv_array_push(&args, "--preserve-merges"); else if (opt_rebase == REBASE_INTERACTIVE) argv_array_push(&args, "--interactive"); diff --git a/builtin/push.c b/builtin/push.c index 013c20d616..ac3705370e 100644 --- a/builtin/push.c +++ b/builtin/push.c @@ -12,12 +12,40 @@ #include "submodule.h" #include "submodule-config.h" #include "send-pack.h" +#include "color.h" static const char * const push_usage[] = { N_("git push [<options>] [<repository> [<refspec>...]]"), NULL, }; +static int push_use_color = -1; +static char push_colors[][COLOR_MAXLEN] = { + GIT_COLOR_RESET, + GIT_COLOR_RED, /* ERROR */ +}; + +enum color_push { + PUSH_COLOR_RESET = 0, + PUSH_COLOR_ERROR = 1 +}; + +static int parse_push_color_slot(const char *slot) +{ + if (!strcasecmp(slot, "reset")) + return PUSH_COLOR_RESET; + if (!strcasecmp(slot, "error")) + return PUSH_COLOR_ERROR; + return -1; +} + +static const char *push_get_color(enum color_push ix) +{ + if (want_color_stderr(push_use_color)) + return push_colors[ix]; + return ""; +} + static int thin = 1; static int deleterefs; static const char *receivepack; @@ -337,8 +365,11 @@ static int push_with_options(struct transport *transport, int flags) fprintf(stderr, _("Pushing to %s\n"), transport->url); err = transport_push(transport, refspec_nr, refspec, flags, &reject_reasons); - if (err != 0) + if (err != 0) { + fprintf(stderr, "%s", push_get_color(PUSH_COLOR_ERROR)); error(_("failed to push some refs to '%s'"), transport->url); + fprintf(stderr, "%s", push_get_color(PUSH_COLOR_RESET)); + } err |= transport_disconnect(transport); if (!err) @@ -467,6 +498,7 @@ static void set_push_cert_flags(int *flags, int v) static int git_push_config(const char *k, const char *v, void *cb) { + const char *slot_name; int *flags = cb; int status; @@ -514,6 +546,16 @@ static int git_push_config(const char *k, const char *v, void *cb) else string_list_append(&push_options_config, v); return 0; + } else if (!strcmp(k, "color.push")) { + push_use_color = git_config_colorbool(k, v); + return 0; + } else if (skip_prefix(k, "color.push.", &slot_name)) { + int slot = parse_push_color_slot(slot_name); + if (slot < 0) + return 0; + if (!v) + return config_error_nonbool(k); + return color_parse(v, push_colors[slot]); } return git_default_config(k, v, NULL); diff --git a/builtin/read-tree.c b/builtin/read-tree.c index bf87a2710b..ebc43eb805 100644 --- a/builtin/read-tree.c +++ b/builtin/read-tree.c @@ -107,8 +107,6 @@ static int git_read_tree_config(const char *var, const char *value, void *cb) return git_default_config(var, value, cb); } -static struct lock_file lock_file; - int cmd_read_tree(int argc, const char **argv, const char *unused_prefix) { int i, stage = 0; @@ -116,6 +114,7 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix) struct tree_desc t[MAX_UNPACK_TREES]; struct unpack_trees_options opts; int prefix_set = 0; + struct lock_file lock_file = LOCK_INIT; const struct option read_tree_options[] = { { OPTION_CALLBACK, 0, "index-output", NULL, N_("file"), N_("write resulting index to <file>"), diff --git a/builtin/rebase--helper.c b/builtin/rebase--helper.c index ad074705bb..f7c2a5fdc8 100644 --- a/builtin/rebase--helper.c +++ b/builtin/rebase--helper.c @@ -12,8 +12,8 @@ static const char * const builtin_rebase_helper_usage[] = { int cmd_rebase__helper(int argc, const char **argv, const char *prefix) { struct replay_opts opts = REPLAY_OPTS_INIT; - unsigned flags = 0, keep_empty = 0; - int abbreviate_commands = 0; + unsigned flags = 0, keep_empty = 0, rebase_merges = 0; + int abbreviate_commands = 0, rebase_cousins = -1; enum { CONTINUE = 1, ABORT, MAKE_SCRIPT, SHORTEN_OIDS, EXPAND_OIDS, CHECK_TODO_LIST, SKIP_UNNECESSARY_PICKS, REARRANGE_SQUASH, @@ -24,6 +24,9 @@ int cmd_rebase__helper(int argc, const char **argv, const char *prefix) OPT_BOOL(0, "keep-empty", &keep_empty, N_("keep empty commits")), OPT_BOOL(0, "allow-empty-message", &opts.allow_empty_message, N_("allow commits with empty messages")), + OPT_BOOL(0, "rebase-merges", &rebase_merges, N_("rebase merge commits")), + OPT_BOOL(0, "rebase-cousins", &rebase_cousins, + N_("keep original branch points of cousins")), OPT_CMDMODE(0, "continue", &command, N_("continue rebase"), CONTINUE), OPT_CMDMODE(0, "abort", &command, N_("abort rebase"), @@ -57,8 +60,14 @@ int cmd_rebase__helper(int argc, const char **argv, const char *prefix) flags |= keep_empty ? TODO_LIST_KEEP_EMPTY : 0; flags |= abbreviate_commands ? TODO_LIST_ABBREVIATE_CMDS : 0; + flags |= rebase_merges ? TODO_LIST_REBASE_MERGES : 0; + flags |= rebase_cousins > 0 ? TODO_LIST_REBASE_COUSINS : 0; flags |= command == SHORTEN_OIDS ? TODO_LIST_SHORTEN_IDS : 0; + if (rebase_cousins >= 0 && !rebase_merges) + warning(_("--[no-]rebase-cousins has no effect without " + "--rebase-merges")); + if (command == CONTINUE && argc == 1) return !!sequencer_continue(&opts); if (command == ABORT && argc == 1) diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c index 2d719fa511..d5f15cd4f6 100644 --- a/builtin/receive-pack.c +++ b/builtin/receive-pack.c @@ -876,7 +876,7 @@ static void refuse_unconfigured_deny_delete_current(void) static int command_singleton_iterator(void *cb_data, struct object_id *oid); static int update_shallow_ref(struct command *cmd, struct shallow_info *si) { - static struct lock_file shallow_lock; + struct lock_file shallow_lock = LOCK_INIT; struct oid_array extra = OID_ARRAY_INIT; struct check_connected_options opt = CHECK_CONNECTED_INIT; uint32_t mask = 1 << (cmd->index % 32); @@ -1965,6 +1965,12 @@ int cmd_receive_pack(int argc, const char **argv, const char *prefix) unpack_limit = receive_unpack_limit; switch (determine_protocol_version_server()) { + case protocol_v2: + /* + * push support for protocol v2 has not been implemented yet, + * so ignore the request to use v2 and fallback to using v0. + */ + break; case protocol_v1: /* * v1 is just the original protocol with a version string, diff --git a/builtin/reflog.c b/builtin/reflog.c index a89bd1dd25..a48984d37e 100644 --- a/builtin/reflog.c +++ b/builtin/reflog.c @@ -154,7 +154,7 @@ static int commit_is_complete(struct commit *commit) for (i = 0; i < found.nr; i++) { struct commit *c = (struct commit *)found.objects[i].item; - if (!tree_is_complete(&c->tree->object.oid)) { + if (!tree_is_complete(get_commit_tree_oid(c))) { is_incomplete = 1; c->object.flags |= INCOMPLETE; } diff --git a/builtin/remote.c b/builtin/remote.c index 805ffc05cd..0bbf9f4c9e 100644 --- a/builtin/remote.c +++ b/builtin/remote.c @@ -245,7 +245,9 @@ static int add(int argc, const char **argv) struct branch_info { char *remote_name; struct string_list merge; - enum { NO_REBASE, NORMAL_REBASE, INTERACTIVE_REBASE } rebase; + enum { + NO_REBASE, NORMAL_REBASE, INTERACTIVE_REBASE, REBASE_MERGES + } rebase; }; static struct string_list branch_list = STRING_LIST_INIT_NODUP; @@ -306,6 +308,8 @@ static int config_read_branches(const char *key, const char *value, void *cb) info->rebase = v; else if (!strcmp(value, "preserve")) info->rebase = NORMAL_REBASE; + else if (!strcmp(value, "merges")) + info->rebase = REBASE_MERGES; else if (!strcmp(value, "interactive")) info->rebase = INTERACTIVE_REBASE; } @@ -862,7 +866,7 @@ static int get_remote_ref_states(const char *name, if (query) { transport = transport_get(states->remote, states->remote->url_nr > 0 ? states->remote->url[0] : NULL); - remote_refs = transport_get_remote_refs(transport); + remote_refs = transport_get_remote_refs(transport, NULL); transport_disconnect(transport); states->queried = 1; @@ -963,9 +967,15 @@ static int show_local_info_item(struct string_list_item *item, void *cb_data) printf(" %-*s ", show_info->width, item->string); if (branch_info->rebase) { - printf_ln(branch_info->rebase == INTERACTIVE_REBASE - ? _("rebases interactively onto remote %s") - : _("rebases onto remote %s"), merge->items[0].string); + const char *msg; + if (branch_info->rebase == INTERACTIVE_REBASE) + msg = _("rebases interactively onto remote %s"); + else if (branch_info->rebase == REBASE_MERGES) + msg = _("rebases interactively (with merges) onto " + "remote %s"); + else + msg = _("rebases onto remote %s"); + printf_ln(msg, merge->items[0].string); return 0; } else if (show_info->any_rebase) { printf_ln(_(" merges with remote %s"), merge->items[0].string); diff --git a/builtin/repack.c b/builtin/repack.c index 7bdb40142f..6c636e159e 100644 --- a/builtin/repack.c +++ b/builtin/repack.c @@ -86,7 +86,8 @@ static void remove_pack_on_signal(int signo) * have a corresponding .keep or .promisor file. These packs are not to * be kept if we are going to pack everything into one file. */ -static void get_non_kept_pack_filenames(struct string_list *fname_list) +static void get_non_kept_pack_filenames(struct string_list *fname_list, + const struct string_list *extra_keep) { DIR *dir; struct dirent *e; @@ -97,6 +98,14 @@ static void get_non_kept_pack_filenames(struct string_list *fname_list) while ((e = readdir(dir)) != NULL) { size_t len; + int i; + + for (i = 0; i < extra_keep->nr; i++) + if (!fspathcmp(e->d_name, extra_keep->items[i].string)) + break; + if (extra_keep->nr > 0 && i < extra_keep->nr) + continue; + if (!strip_suffix(e->d_name, ".pack", &len)) continue; @@ -148,7 +157,7 @@ int cmd_repack(int argc, const char **argv, const char *prefix) struct string_list rollback = STRING_LIST_INIT_NODUP; struct string_list existing_packs = STRING_LIST_INIT_DUP; struct strbuf line = STRBUF_INIT; - int ext, ret, failed; + int i, ext, ret, failed; FILE *out; /* variables to be filled by option parsing */ @@ -160,6 +169,7 @@ int cmd_repack(int argc, const char **argv, const char *prefix) const char *depth = NULL; const char *threads = NULL; const char *max_pack_size = NULL; + struct string_list keep_pack_list = STRING_LIST_INIT_NODUP; int no_reuse_delta = 0, no_reuse_object = 0; int no_update_server_info = 0; int quiet = 0; @@ -200,6 +210,8 @@ int cmd_repack(int argc, const char **argv, const char *prefix) N_("maximum size of each packfile")), OPT_BOOL(0, "pack-kept-objects", &pack_kept_objects, N_("repack objects in packs marked with .keep")), + OPT_STRING_LIST(0, "keep-pack", &keep_pack_list, N_("name"), + N_("do not repack this pack")), OPT_END() }; @@ -230,6 +242,9 @@ int cmd_repack(int argc, const char **argv, const char *prefix) argv_array_push(&cmd.args, "--keep-true-parents"); if (!pack_kept_objects) argv_array_push(&cmd.args, "--honor-pack-keep"); + for (i = 0; i < keep_pack_list.nr; i++) + argv_array_pushf(&cmd.args, "--keep-pack=%s", + keep_pack_list.items[i].string); argv_array_push(&cmd.args, "--non-empty"); argv_array_push(&cmd.args, "--all"); argv_array_push(&cmd.args, "--reflog"); @@ -254,7 +269,7 @@ int cmd_repack(int argc, const char **argv, const char *prefix) argv_array_push(&cmd.args, "--write-bitmap-index"); if (pack_everything & ALL_INTO_ONE) { - get_non_kept_pack_filenames(&existing_packs); + get_non_kept_pack_filenames(&existing_packs, &keep_pack_list); if (existing_packs.nr && delete_redundant) { if (unpack_unreachable) { diff --git a/builtin/replace.c b/builtin/replace.c index 91a25394c0..6da2411e14 100644 --- a/builtin/replace.c +++ b/builtin/replace.c @@ -14,12 +14,15 @@ #include "refs.h" #include "parse-options.h" #include "run-command.h" +#include "object-store.h" +#include "repository.h" #include "tag.h" static const char * const git_replace_usage[] = { N_("git replace [-f] <object> <replacement>"), N_("git replace [-f] --edit <object>"), N_("git replace [-f] --graft <commit> [<parent>...]"), + N_("git replace [-f] --convert-graft-file"), N_("git replace -d <object>..."), N_("git replace [--format=<format>] [-l [<pattern>]]"), NULL @@ -53,8 +56,9 @@ static int show_reference(const char *refname, const struct object_id *oid, if (get_oid(refname, &object)) return error("Failed to resolve '%s' as a valid ref.", refname); - obj_type = oid_object_info(&object, NULL); - repl_type = oid_object_info(oid, NULL); + obj_type = oid_object_info(the_repository, &object, + NULL); + repl_type = oid_object_info(the_repository, oid, NULL); printf("%s (%s) -> %s (%s)\n", refname, type_name(obj_type), oid_to_hex(oid), type_name(repl_type)); @@ -79,11 +83,11 @@ static int list_replace_refs(const char *pattern, const char *format) else if (!strcmp(format, "long")) data.format = REPLACE_FORMAT_LONG; else - die("invalid replace format '%s'\n" - "valid formats are 'short', 'medium' and 'long'\n", - format); + return error("invalid replace format '%s'\n" + "valid formats are 'short', 'medium' and 'long'\n", + format); - for_each_replace_ref(show_reference, (void *)&data); + for_each_replace_ref(the_repository, show_reference, (void *)&data); return 0; } @@ -134,7 +138,7 @@ static int delete_replace_ref(const char *name, const char *ref, return 0; } -static void check_ref_valid(struct object_id *object, +static int check_ref_valid(struct object_id *object, struct object_id *prev, struct strbuf *ref, int force) @@ -142,12 +146,13 @@ static void check_ref_valid(struct object_id *object, strbuf_reset(ref); strbuf_addf(ref, "%s%s", git_replace_ref_base, oid_to_hex(object)); if (check_refname_format(ref->buf, 0)) - die("'%s' is not a valid ref name.", ref->buf); + return error("'%s' is not a valid ref name.", ref->buf); if (read_ref(ref->buf, prev)) oidclr(prev); else if (!force) - die("replace ref '%s' already exists", ref->buf); + return error("replace ref '%s' already exists", ref->buf); + return 0; } static int replace_object_oid(const char *object_ref, @@ -161,28 +166,33 @@ static int replace_object_oid(const char *object_ref, struct strbuf ref = STRBUF_INIT; struct ref_transaction *transaction; struct strbuf err = STRBUF_INIT; + int res = 0; - obj_type = oid_object_info(object, NULL); - repl_type = oid_object_info(repl, NULL); + obj_type = oid_object_info(the_repository, object, NULL); + repl_type = oid_object_info(the_repository, repl, NULL); if (!force && obj_type != repl_type) - die("Objects must be of the same type.\n" - "'%s' points to a replaced object of type '%s'\n" - "while '%s' points to a replacement object of type '%s'.", - object_ref, type_name(obj_type), - replace_ref, type_name(repl_type)); - - check_ref_valid(object, &prev, &ref, force); + return error("Objects must be of the same type.\n" + "'%s' points to a replaced object of type '%s'\n" + "while '%s' points to a replacement object of " + "type '%s'.", + object_ref, type_name(obj_type), + replace_ref, type_name(repl_type)); + + if (check_ref_valid(object, &prev, &ref, force)) { + strbuf_release(&ref); + return -1; + } transaction = ref_transaction_begin(&err); if (!transaction || ref_transaction_update(transaction, ref.buf, repl, &prev, 0, NULL, &err) || ref_transaction_commit(transaction, &err)) - die("%s", err.buf); + res = error("%s", err.buf); ref_transaction_free(transaction); strbuf_release(&ref); - return 0; + return res; } static int replace_object(const char *object_ref, const char *replace_ref, int force) @@ -190,9 +200,11 @@ static int replace_object(const char *object_ref, const char *replace_ref, int f struct object_id object, repl; if (get_oid(object_ref, &object)) - die("Failed to resolve '%s' as a valid ref.", object_ref); + return error("Failed to resolve '%s' as a valid ref.", + object_ref); if (get_oid(replace_ref, &repl)) - die("Failed to resolve '%s' as a valid ref.", replace_ref); + return error("Failed to resolve '%s' as a valid ref.", + replace_ref); return replace_object_oid(object_ref, &object, replace_ref, &repl, force); } @@ -202,7 +214,7 @@ static int replace_object(const char *object_ref, const char *replace_ref, int f * If "raw" is true, then the object's raw contents are printed according to * "type". Otherwise, we pretty-print the contents for human editing. */ -static void export_object(const struct object_id *oid, enum object_type type, +static int export_object(const struct object_id *oid, enum object_type type, int raw, const char *filename) { struct child_process cmd = CHILD_PROCESS_INIT; @@ -210,7 +222,7 @@ static void export_object(const struct object_id *oid, enum object_type type, fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666); if (fd < 0) - die_errno("unable to open %s for writing", filename); + return error_errno("unable to open %s for writing", filename); argv_array_push(&cmd.args, "--no-replace-objects"); argv_array_push(&cmd.args, "cat-file"); @@ -223,7 +235,8 @@ static void export_object(const struct object_id *oid, enum object_type type, cmd.out = fd; if (run_command(&cmd)) - die("cat-file reported failure"); + return error("cat-file reported failure"); + return 0; } /* @@ -231,14 +244,14 @@ static void export_object(const struct object_id *oid, enum object_type type, * interpreting it as "type", and writing the result to the object database. * The sha1 of the written object is returned via sha1. */ -static void import_object(struct object_id *oid, enum object_type type, +static int import_object(struct object_id *oid, enum object_type type, int raw, const char *filename) { int fd; fd = open(filename, O_RDONLY); if (fd < 0) - die_errno("unable to open %s for reading", filename); + return error_errno("unable to open %s for reading", filename); if (!raw && type == OBJ_TREE) { const char *argv[] = { "mktree", NULL }; @@ -250,27 +263,40 @@ static void import_object(struct object_id *oid, enum object_type type, cmd.in = fd; cmd.out = -1; - if (start_command(&cmd)) - die("unable to spawn mktree"); + if (start_command(&cmd)) { + close(fd); + return error("unable to spawn mktree"); + } - if (strbuf_read(&result, cmd.out, 41) < 0) - die_errno("unable to read from mktree"); + if (strbuf_read(&result, cmd.out, 41) < 0) { + error_errno("unable to read from mktree"); + close(fd); + close(cmd.out); + return -1; + } close(cmd.out); - if (finish_command(&cmd)) - die("mktree reported failure"); - if (get_oid_hex(result.buf, oid) < 0) - die("mktree did not return an object name"); + if (finish_command(&cmd)) { + strbuf_release(&result); + return error("mktree reported failure"); + } + if (get_oid_hex(result.buf, oid) < 0) { + strbuf_release(&result); + return error("mktree did not return an object name"); + } strbuf_release(&result); } else { struct stat st; int flags = HASH_FORMAT_CHECK | HASH_WRITE_OBJECT; - if (fstat(fd, &st) < 0) - die_errno("unable to fstat %s", filename); + if (fstat(fd, &st) < 0) { + error_errno("unable to fstat %s", filename); + close(fd); + return -1; + } if (index_fd(oid, fd, &st, type, NULL, flags) < 0) - die("unable to write object to database"); + return error("unable to write object to database"); /* index_fd close()s fd for us */ } @@ -278,30 +304,43 @@ static void import_object(struct object_id *oid, enum object_type type, * No need to close(fd) here; both run-command and index-fd * will have done it for us. */ + return 0; } static int edit_and_replace(const char *object_ref, int force, int raw) { - char *tmpfile = git_pathdup("REPLACE_EDITOBJ"); + char *tmpfile; enum object_type type; struct object_id old_oid, new_oid, prev; struct strbuf ref = STRBUF_INIT; if (get_oid(object_ref, &old_oid) < 0) - die("Not a valid object name: '%s'", object_ref); + return error("Not a valid object name: '%s'", object_ref); - type = oid_object_info(&old_oid, NULL); + type = oid_object_info(the_repository, &old_oid, NULL); if (type < 0) - die("unable to get object type for %s", oid_to_hex(&old_oid)); + return error("unable to get object type for %s", + oid_to_hex(&old_oid)); - check_ref_valid(&old_oid, &prev, &ref, force); + if (check_ref_valid(&old_oid, &prev, &ref, force)) { + strbuf_release(&ref); + return -1; + } strbuf_release(&ref); - export_object(&old_oid, type, raw, tmpfile); - if (launch_editor(tmpfile, NULL, NULL) < 0) - die("editing object file failed"); - import_object(&new_oid, type, raw, tmpfile); - + tmpfile = git_pathdup("REPLACE_EDITOBJ"); + if (export_object(&old_oid, type, raw, tmpfile)) { + free(tmpfile); + return -1; + } + if (launch_editor(tmpfile, NULL, NULL) < 0) { + free(tmpfile); + return error("editing object file failed"); + } + if (import_object(&new_oid, type, raw, tmpfile)) { + free(tmpfile); + return -1; + } free(tmpfile); if (!oidcmp(&old_oid, &new_oid)) @@ -310,7 +349,7 @@ static int edit_and_replace(const char *object_ref, int force, int raw) return replace_object_oid(object_ref, &old_oid, "replacement", &new_oid, force); } -static void replace_parents(struct strbuf *buf, int argc, const char **argv) +static int replace_parents(struct strbuf *buf, int argc, const char **argv) { struct strbuf new_parents = STRBUF_INIT; const char *parent_start, *parent_end; @@ -327,9 +366,15 @@ static void replace_parents(struct strbuf *buf, int argc, const char **argv) /* prepare new parents */ for (i = 0; i < argc; i++) { struct object_id oid; - if (get_oid(argv[i], &oid) < 0) - die(_("Not a valid object name: '%s'"), argv[i]); - lookup_commit_or_die(&oid, argv[i]); + if (get_oid(argv[i], &oid) < 0) { + strbuf_release(&new_parents); + return error(_("Not a valid object name: '%s'"), + argv[i]); + } + if (!lookup_commit_reference(&oid)) { + strbuf_release(&new_parents); + return error(_("could not parse %s"), argv[i]); + } strbuf_addf(&new_parents, "parent %s\n", oid_to_hex(&oid)); } @@ -338,6 +383,7 @@ static void replace_parents(struct strbuf *buf, int argc, const char **argv) new_parents.buf, new_parents.len); strbuf_release(&new_parents); + return 0; } struct check_mergetag_data { @@ -345,7 +391,7 @@ struct check_mergetag_data { const char **argv; }; -static void check_one_mergetag(struct commit *commit, +static int check_one_mergetag(struct commit *commit, struct commit_extra_header *extra, void *data) { @@ -358,33 +404,35 @@ static void check_one_mergetag(struct commit *commit, hash_object_file(extra->value, extra->len, type_name(OBJ_TAG), &tag_oid); tag = lookup_tag(&tag_oid); if (!tag) - die(_("bad mergetag in commit '%s'"), ref); + return error(_("bad mergetag in commit '%s'"), ref); if (parse_tag_buffer(tag, extra->value, extra->len)) - die(_("malformed mergetag in commit '%s'"), ref); + return error(_("malformed mergetag in commit '%s'"), ref); /* iterate over new parents */ for (i = 1; i < mergetag_data->argc; i++) { struct object_id oid; if (get_oid(mergetag_data->argv[i], &oid) < 0) - die(_("Not a valid object name: '%s'"), mergetag_data->argv[i]); + return error(_("Not a valid object name: '%s'"), + mergetag_data->argv[i]); if (!oidcmp(&tag->tagged->oid, &oid)) - return; /* found */ + return 0; /* found */ } - die(_("original commit '%s' contains mergetag '%s' that is discarded; " - "use --edit instead of --graft"), ref, oid_to_hex(&tag_oid)); + return error(_("original commit '%s' contains mergetag '%s' that is " + "discarded; use --edit instead of --graft"), ref, + oid_to_hex(&tag_oid)); } -static void check_mergetags(struct commit *commit, int argc, const char **argv) +static int check_mergetags(struct commit *commit, int argc, const char **argv) { struct check_mergetag_data mergetag_data; mergetag_data.argc = argc; mergetag_data.argv = argv; - for_each_mergetag(check_one_mergetag, commit, &mergetag_data); + return for_each_mergetag(check_one_mergetag, commit, &mergetag_data); } -static int create_graft(int argc, const char **argv, int force) +static int create_graft(int argc, const char **argv, int force, int gentle) { struct object_id old_oid, new_oid; const char *old_ref = argv[0]; @@ -394,33 +442,81 @@ static int create_graft(int argc, const char **argv, int force) unsigned long size; if (get_oid(old_ref, &old_oid) < 0) - die(_("Not a valid object name: '%s'"), old_ref); - commit = lookup_commit_or_die(&old_oid, old_ref); + return error(_("Not a valid object name: '%s'"), old_ref); + commit = lookup_commit_reference(&old_oid); + if (!commit) + return error(_("could not parse %s"), old_ref); buffer = get_commit_buffer(commit, &size); strbuf_add(&buf, buffer, size); unuse_commit_buffer(commit, buffer); - replace_parents(&buf, argc - 1, &argv[1]); + if (replace_parents(&buf, argc - 1, &argv[1]) < 0) { + strbuf_release(&buf); + return -1; + } if (remove_signature(&buf)) { warning(_("the original commit '%s' has a gpg signature."), old_ref); warning(_("the signature will be removed in the replacement commit!")); } - check_mergetags(commit, argc, argv); + if (check_mergetags(commit, argc, argv)) { + strbuf_release(&buf); + return -1; + } - if (write_object_file(buf.buf, buf.len, commit_type, &new_oid)) - die(_("could not write replacement commit for: '%s'"), old_ref); + if (write_object_file(buf.buf, buf.len, commit_type, &new_oid)) { + strbuf_release(&buf); + return error(_("could not write replacement commit for: '%s'"), + old_ref); + } strbuf_release(&buf); - if (!oidcmp(&old_oid, &new_oid)) + if (!oidcmp(&old_oid, &new_oid)) { + if (gentle) { + warning("graft for '%s' unnecessary", oid_to_hex(&old_oid)); + return 0; + } return error("new commit is the same as the old one: '%s'", oid_to_hex(&old_oid)); + } return replace_object_oid(old_ref, &old_oid, "replacement", &new_oid, force); } +static int convert_graft_file(int force) +{ + const char *graft_file = get_graft_file(); + FILE *fp = fopen_or_warn(graft_file, "r"); + struct strbuf buf = STRBUF_INIT, err = STRBUF_INIT; + struct argv_array args = ARGV_ARRAY_INIT; + + if (!fp) + return -1; + + while (strbuf_getline(&buf, fp) != EOF) { + if (*buf.buf == '#') + continue; + + argv_array_split(&args, buf.buf); + if (args.argc && create_graft(args.argc, args.argv, force, 1)) + strbuf_addf(&err, "\n\t%s", buf.buf); + argv_array_clear(&args); + } + fclose(fp); + + strbuf_release(&buf); + + if (!err.len) + return unlink_or_warn(graft_file); + + warning(_("could not convert the following graft(s):\n%s"), err.buf); + strbuf_release(&err); + + return -1; +} + int cmd_replace(int argc, const char **argv, const char *prefix) { int force = 0; @@ -432,6 +528,7 @@ int cmd_replace(int argc, const char **argv, const char *prefix) MODE_DELETE, MODE_EDIT, MODE_GRAFT, + MODE_CONVERT_GRAFT_FILE, MODE_REPLACE } cmdmode = MODE_UNSPECIFIED; struct option options[] = { @@ -439,6 +536,7 @@ int cmd_replace(int argc, const char **argv, const char *prefix) OPT_CMDMODE('d', "delete", &cmdmode, N_("delete replace refs"), MODE_DELETE), OPT_CMDMODE('e', "edit", &cmdmode, N_("edit existing object"), MODE_EDIT), OPT_CMDMODE('g', "graft", &cmdmode, N_("change a commit's parents"), MODE_GRAFT), + OPT_CMDMODE(0, "convert-graft-file", &cmdmode, N_("convert existing graft file"), MODE_CONVERT_GRAFT_FILE), OPT_BOOL_F('f', "force", &force, N_("replace the ref if it exists"), PARSE_OPT_NOCOMPLETE), OPT_BOOL(0, "raw", &raw, N_("do not pretty-print contents for --edit")), @@ -461,7 +559,8 @@ int cmd_replace(int argc, const char **argv, const char *prefix) if (force && cmdmode != MODE_REPLACE && cmdmode != MODE_EDIT && - cmdmode != MODE_GRAFT) + cmdmode != MODE_GRAFT && + cmdmode != MODE_CONVERT_GRAFT_FILE) usage_msg_opt("-f only makes sense when writing a replacement", git_replace_usage, options); @@ -492,7 +591,13 @@ int cmd_replace(int argc, const char **argv, const char *prefix) if (argc < 1) usage_msg_opt("-g needs at least one argument", git_replace_usage, options); - return create_graft(argc, argv, force); + return create_graft(argc, argv, force, 0); + + case MODE_CONVERT_GRAFT_FILE: + if (argc != 0) + usage_msg_opt("--convert-graft-file takes no argument", + git_replace_usage, options); + return !!convert_graft_file(force); case MODE_LIST: if (argc > 1) diff --git a/builtin/rm.c b/builtin/rm.c index 5b6fc7ee81..65b448ef8e 100644 --- a/builtin/rm.c +++ b/builtin/rm.c @@ -233,8 +233,6 @@ static int check_local_mod(struct object_id *head, int index_only) return errs; } -static struct lock_file lock_file; - static int show_only = 0, force = 0, index_only = 0, recursive = 0, quiet = 0; static int ignore_unmatch = 0; @@ -251,6 +249,7 @@ static struct option builtin_rm_options[] = { int cmd_rm(int argc, const char **argv, const char *prefix) { + struct lock_file lock_file = LOCK_INIT; int i; struct pathspec pathspec; char *seen; diff --git a/builtin/send-pack.c b/builtin/send-pack.c index fc4f0bb5fb..b5427f75e3 100644 --- a/builtin/send-pack.c +++ b/builtin/send-pack.c @@ -14,6 +14,7 @@ #include "sha1-array.h" #include "gpg-interface.h" #include "gettext.h" +#include "protocol.h" static const char * const send_pack_usage[] = { N_("git send-pack [--all | --mirror] [--dry-run] [--force] " @@ -154,6 +155,7 @@ int cmd_send_pack(int argc, const char **argv, const char *prefix) int progress = -1; int from_stdin = 0; struct push_cas_option cas = {0}; + struct packet_reader reader; struct option options[] = { OPT__VERBOSITY(&verbose), @@ -256,8 +258,22 @@ int cmd_send_pack(int argc, const char **argv, const char *prefix) args.verbose ? CONNECT_VERBOSE : 0); } - get_remote_heads(fd[0], NULL, 0, &remote_refs, REF_NORMAL, - &extra_have, &shallow); + packet_reader_init(&reader, fd[0], NULL, 0, + PACKET_READ_CHOMP_NEWLINE | + PACKET_READ_GENTLE_ON_EOF); + + switch (discover_version(&reader)) { + case protocol_v2: + die("support for protocol v2 not implemented yet"); + break; + case protocol_v1: + case protocol_v0: + get_remote_heads(&reader, &remote_refs, REF_NORMAL, + &extra_have, &shallow); + break; + case protocol_unknown_version: + BUG("unknown protocol version"); + } transport_verify_remote_names(nr_refspecs, refspecs); diff --git a/builtin/serve.c b/builtin/serve.c new file mode 100644 index 0000000000..d3fd240bb3 --- /dev/null +++ b/builtin/serve.c @@ -0,0 +1,30 @@ +#include "cache.h" +#include "builtin.h" +#include "parse-options.h" +#include "serve.h" + +static char const * const serve_usage[] = { + N_("git serve [<options>]"), + NULL +}; + +int cmd_serve(int argc, const char **argv, const char *prefix) +{ + struct serve_options opts = SERVE_OPTIONS_INIT; + + struct option options[] = { + OPT_BOOL(0, "stateless-rpc", &opts.stateless_rpc, + N_("quit after a single request/response exchange")), + OPT_BOOL(0, "advertise-capabilities", &opts.advertise_capabilities, + N_("exit immediately after advertising capabilities")), + OPT_END() + }; + + /* ignore all unknown cmdline switches for now */ + argc = parse_options(argc, argv, prefix, options, serve_usage, + PARSE_OPT_KEEP_DASHDASH | + PARSE_OPT_KEEP_UNKNOWN); + serve(&opts); + + return 0; +} diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c index a404df3ea4..df841d4ab3 100644 --- a/builtin/submodule--helper.c +++ b/builtin/submodule--helper.c @@ -455,7 +455,7 @@ static void init_submodule(const char *path, const char *prefix, displaypath = get_submodule_displaypath(path, prefix); - sub = submodule_from_path(&null_oid, path); + sub = submodule_from_path(the_repository, &null_oid, path); if (!sub) die(_("No url found for submodule path '%s' in .gitmodules"), @@ -596,8 +596,12 @@ static void print_status(unsigned int flags, char state, const char *path, printf("%c%s %s", state, oid_to_hex(oid), displaypath); - if (state == ' ' || state == '+') - printf(" (%s)", compute_rev_name(path, oid_to_hex(oid))); + if (state == ' ' || state == '+') { + const char *name = compute_rev_name(path, oid_to_hex(oid)); + + if (name) + printf(" (%s)", name); + } printf("\n"); } @@ -622,7 +626,7 @@ static void status_submodule(const char *path, const struct object_id *ce_oid, struct rev_info rev; int diff_files_result; - if (!submodule_from_path(&null_oid, path)) + if (!submodule_from_path(the_repository, &null_oid, path)) die(_("no submodule mapping found in .gitmodules for path '%s'"), path); @@ -746,7 +750,7 @@ static int module_name(int argc, const char **argv, const char *prefix) if (argc != 2) usage(_("git submodule--helper name <path>")); - sub = submodule_from_path(&null_oid, argv[1]); + sub = submodule_from_path(the_repository, &null_oid, argv[1]); if (!sub) die(_("no submodule mapping found in .gitmodules for path '%s'"), @@ -777,7 +781,7 @@ static void sync_submodule(const char *path, const char *prefix, if (!is_submodule_active(the_repository, path)) return; - sub = submodule_from_path(&null_oid, path); + sub = submodule_from_path(the_repository, &null_oid, path); if (sub && sub->url) { if (starts_with_dot_dot_slash(sub->url) || @@ -930,7 +934,7 @@ static void deinit_submodule(const char *path, const char *prefix, struct strbuf sb_config = STRBUF_INIT; char *sub_git_dir = xstrfmt("%s/.git", path); - sub = submodule_from_path(&null_oid, path); + sub = submodule_from_path(the_repository, &null_oid, path); if (!sub || !sub->name) goto cleanup; @@ -1264,8 +1268,7 @@ static int module_clone(int argc, const char **argv, const char *prefix) strbuf_reset(&sb); } - /* Connect module worktree and git dir */ - connect_work_tree_and_git_dir(path, sm_gitdir); + connect_work_tree_and_git_dir(path, sm_gitdir, 0); p = git_pathdup_submodule(path, "config"); if (!p) @@ -1372,7 +1375,7 @@ static int prepare_to_clone_next_submodule(const struct cache_entry *ce, goto cleanup; } - sub = submodule_from_path(&null_oid, ce->name); + sub = submodule_from_path(the_repository, &null_oid, ce->name); if (suc->recursive_prefix) displaypath = relative_path(suc->recursive_prefix, @@ -1655,7 +1658,7 @@ static const char *remote_submodule_branch(const char *path) const char *branch = NULL; char *key; - sub = submodule_from_path(&null_oid, path); + sub = submodule_from_path(the_repository, &null_oid, path); if (!sub) return NULL; @@ -1822,6 +1825,29 @@ static int is_active(int argc, const char **argv, const char *prefix) return !is_submodule_active(the_repository, argv[1]); } +/* + * Exit non-zero if any of the submodule names given on the command line is + * invalid. If no names are given, filter stdin to print only valid names + * (which is primarily intended for testing). + */ +static int check_name(int argc, const char **argv, const char *prefix) +{ + if (argc > 1) { + while (*++argv) { + if (check_submodule_name(*argv) < 0) + return 1; + } + } else { + struct strbuf buf = STRBUF_INIT; + while (strbuf_getline(&buf, stdin) != EOF) { + if (!check_submodule_name(buf.buf)) + printf("%s\n", buf.buf); + } + strbuf_release(&buf); + } + return 0; +} + #define SUPPORT_SUPER_PREFIX (1<<0) struct cmd_struct { @@ -1847,6 +1873,7 @@ static struct cmd_struct commands[] = { {"push-check", push_check, 0}, {"absorb-git-dirs", absorb_git_dirs, SUPPORT_SUPER_PREFIX}, {"is-active", is_active, 0}, + {"check-name", check_name, 0}, }; int cmd_submodule__helper(int argc, const char **argv, const char *prefix) diff --git a/builtin/tag.c b/builtin/tag.c index 46a5c6a1da..5d0dd11240 100644 --- a/builtin/tag.c +++ b/builtin/tag.c @@ -212,7 +212,7 @@ static void create_tag(const struct object_id *object, const char *tag, struct strbuf header = STRBUF_INIT; char *path = NULL; - type = oid_object_info(object, NULL); + type = oid_object_info(the_repository, object, NULL); if (type <= OBJ_NONE) die(_("bad object type.")); @@ -298,7 +298,7 @@ static void create_reflog_msg(const struct object_id *oid, struct strbuf *sb) } strbuf_addstr(sb, " ("); - type = oid_object_info(oid, NULL); + type = oid_object_info(the_repository, oid, NULL); switch (type) { default: strbuf_addstr(sb, "object of unknown type"); diff --git a/builtin/unpack-objects.c b/builtin/unpack-objects.c index b7755c6cc5..6e81ca8ca2 100644 --- a/builtin/unpack-objects.c +++ b/builtin/unpack-objects.c @@ -199,7 +199,7 @@ static int check_object(struct object *obj, int type, void *data, struct fsck_op if (!(obj->flags & FLAG_OPEN)) { unsigned long size; - int type = oid_object_info(&obj->oid, &size); + int type = oid_object_info(the_repository, &obj->oid, &size); if (type != obj->type || type <= 0) die("object of unexpected type"); obj->flags |= FLAG_WRITTEN; @@ -210,7 +210,7 @@ static int check_object(struct object *obj, int type, void *data, struct fsck_op if (!obj_buf) die("Whoops! Cannot find object '%s'", oid_to_hex(&obj->oid)); if (fsck_object(obj, obj_buf->buffer, obj_buf->size, &fsck_options)) - die("Error in object"); + die("fsck error in packed object"); fsck_options.walk = check_object; if (fsck_walk(obj, NULL, &fsck_options)) die("Error on reachable objects of %s", oid_to_hex(&obj->oid)); @@ -572,8 +572,11 @@ int cmd_unpack_objects(int argc, const char **argv, const char *prefix) unpack_all(); the_hash_algo->update_fn(&ctx, buffer, offset); the_hash_algo->final_fn(oid.hash, &ctx); - if (strict) + if (strict) { write_rest(); + if (fsck_finish(&fsck_options)) + die(_("fsck error in pack objects")); + } if (hashcmp(fill(the_hash_algo->rawsz), oid.hash)) die("final sha1 did not match"); use(the_hash_algo->rawsz); diff --git a/builtin/update-index.c b/builtin/update-index.c index ac19bbbb15..a8709a26ec 100644 --- a/builtin/update-index.c +++ b/builtin/update-index.c @@ -364,10 +364,9 @@ static int process_directory(const char *path, int len, struct stat *st) return error("%s: is a directory - add files inside instead", path); } -static int process_path(const char *path) +static int process_path(const char *path, struct stat *st, int stat_errno) { int pos, len; - struct stat st; const struct cache_entry *ce; len = strlen(path); @@ -391,13 +390,13 @@ static int process_path(const char *path) * First things first: get the stat information, to decide * what to do about the pathname! */ - if (lstat(path, &st) < 0) - return process_lstat_error(path, errno); + if (stat_errno) + return process_lstat_error(path, stat_errno); - if (S_ISDIR(st.st_mode)) - return process_directory(path, len, &st); + if (S_ISDIR(st->st_mode)) + return process_directory(path, len, st); - return add_one_path(ce, path, len, &st); + return add_one_path(ce, path, len, st); } static int add_cacheinfo(unsigned int mode, const struct object_id *oid, @@ -406,7 +405,7 @@ static int add_cacheinfo(unsigned int mode, const struct object_id *oid, int size, len, option; struct cache_entry *ce; - if (!verify_path(path)) + if (!verify_path(path, mode)) return error("Invalid path '%s'", path); len = strlen(path); @@ -449,7 +448,18 @@ static void chmod_path(char flip, const char *path) static void update_one(const char *path) { - if (!verify_path(path)) { + int stat_errno = 0; + struct stat st; + + if (mark_valid_only || mark_skip_worktree_only || force_remove || + mark_fsmonitor_only) + st.st_mode = 0; + else if (lstat(path, &st) < 0) { + st.st_mode = 0; + stat_errno = errno; + } /* else stat is valid */ + + if (!verify_path(path, st.st_mode)) { fprintf(stderr, "Ignoring path %s\n", path); return; } @@ -475,7 +485,7 @@ static void update_one(const char *path) report("remove '%s'", path); return; } - if (process_path(path)) + if (process_path(path, &st, stat_errno)) die("Unable to process path %s", path); report("add '%s'", path); } @@ -545,7 +555,7 @@ static void read_index_info(int nul_term_line) path_name = uq.buf; } - if (!verify_path(path_name)) { + if (!verify_path(path_name, mode)) { fprintf(stderr, "Ignoring path %s\n", path_name); continue; } diff --git a/builtin/upload-pack.c b/builtin/upload-pack.c new file mode 100644 index 0000000000..decde5a3b1 --- /dev/null +++ b/builtin/upload-pack.c @@ -0,0 +1,74 @@ +#include "cache.h" +#include "builtin.h" +#include "exec-cmd.h" +#include "pkt-line.h" +#include "parse-options.h" +#include "protocol.h" +#include "upload-pack.h" +#include "serve.h" + +static const char * const upload_pack_usage[] = { + N_("git upload-pack [<options>] <dir>"), + NULL +}; + +int cmd_upload_pack(int argc, const char **argv, const char *prefix) +{ + const char *dir; + int strict = 0; + struct upload_pack_options opts = { 0 }; + struct serve_options serve_opts = SERVE_OPTIONS_INIT; + struct option options[] = { + OPT_BOOL(0, "stateless-rpc", &opts.stateless_rpc, + N_("quit after a single request/response exchange")), + OPT_BOOL(0, "advertise-refs", &opts.advertise_refs, + N_("exit immediately after initial ref advertisement")), + OPT_BOOL(0, "strict", &strict, + N_("do not try <directory>/.git/ if <directory> is no Git directory")), + OPT_INTEGER(0, "timeout", &opts.timeout, + N_("interrupt transfer after <n> seconds of inactivity")), + OPT_END() + }; + + packet_trace_identity("upload-pack"); + check_replace_refs = 0; + + argc = parse_options(argc, argv, NULL, options, upload_pack_usage, 0); + + if (argc != 1) + usage_with_options(upload_pack_usage, options); + + if (opts.timeout) + opts.daemon_mode = 1; + + setup_path(); + + dir = argv[0]; + + if (!enter_repo(dir, strict)) + die("'%s' does not appear to be a git repository", dir); + + switch (determine_protocol_version_server()) { + case protocol_v2: + serve_opts.advertise_capabilities = opts.advertise_refs; + serve_opts.stateless_rpc = opts.stateless_rpc; + serve(&serve_opts); + break; + case protocol_v1: + /* + * v1 is just the original protocol with a version string, + * so just fall through after writing the version string. + */ + if (opts.advertise_refs || !opts.stateless_rpc) + packet_write_fmt(1, "version 1\n"); + + /* fallthrough */ + case protocol_v0: + upload_pack(&opts); + break; + case protocol_unknown_version: + BUG("unknown protocol version"); + } + + return 0; +} diff --git a/builtin/worktree.c b/builtin/worktree.c index 40a438ed6c..5c7d2bb180 100644 --- a/builtin/worktree.c +++ b/builtin/worktree.c @@ -29,8 +29,6 @@ struct add_opts { int detach; int checkout; int keep_locked; - const char *new_branch; - int force_new_branch; }; static int show_only; @@ -298,8 +296,6 @@ static int add_worktree(const char *path, const char *refname, strbuf_addf(&sb, "%s/commondir", sb_repo.buf); write_file(sb.buf, "../.."); - fprintf_ln(stderr, _("Preparing %s (identifier %s)"), path, name); - argv_array_pushf(&child_env, "%s=%s", GIT_DIR_ENVIRONMENT, sb_git.buf); argv_array_pushf(&child_env, "%s=%s", GIT_WORK_TREE_ENVIRONMENT, path); cp.git_cmd = 1; @@ -366,18 +362,75 @@ done: return ret; } +static void print_preparing_worktree_line(int detach, + const char *branch, + const char *new_branch, + int force_new_branch) +{ + if (force_new_branch) { + struct commit *commit = lookup_commit_reference_by_name(new_branch); + if (!commit) + printf_ln(_("Preparing worktree (new branch '%s')"), new_branch); + else + printf_ln(_("Preparing worktree (resetting branch '%s'; was at %s)"), + new_branch, + find_unique_abbrev(&commit->object.oid, DEFAULT_ABBREV)); + } else if (new_branch) { + printf_ln(_("Preparing worktree (new branch '%s')"), new_branch); + } else { + struct strbuf s = STRBUF_INIT; + if (!detach && !strbuf_check_branch_ref(&s, branch) && + ref_exists(s.buf)) + printf_ln(_("Preparing worktree (checking out '%s')"), + branch); + else { + struct commit *commit = lookup_commit_reference_by_name(branch); + if (!commit) + die(_("invalid reference: %s"), branch); + printf_ln(_("Preparing worktree (detached HEAD %s)"), + find_unique_abbrev(&commit->object.oid, DEFAULT_ABBREV)); + } + strbuf_release(&s); + } +} + +static const char *dwim_branch(const char *path, const char **new_branch) +{ + int n; + const char *s = worktree_basename(path, &n); + const char *branchname = xstrndup(s, n); + struct strbuf ref = STRBUF_INIT; + + UNLEAK(branchname); + if (!strbuf_check_branch_ref(&ref, branchname) && + ref_exists(ref.buf)) { + strbuf_release(&ref); + return branchname; + } + + *new_branch = branchname; + if (guess_remote) { + struct object_id oid; + const char *remote = + unique_tracking_name(*new_branch, &oid); + return remote; + } + return NULL; +} + static int add(int ac, const char **av, const char *prefix) { struct add_opts opts; const char *new_branch_force = NULL; char *path; const char *branch; + const char *new_branch = NULL; const char *opt_track = NULL; struct option options[] = { OPT__FORCE(&opts.force, N_("checkout <branch> even if already checked out in other worktree"), PARSE_OPT_NOCOMPLETE), - OPT_STRING('b', NULL, &opts.new_branch, N_("branch"), + OPT_STRING('b', NULL, &new_branch, N_("branch"), N_("create a new branch")), OPT_STRING('B', NULL, &new_branch_force, N_("branch"), N_("create or reset a branch")), @@ -395,7 +448,7 @@ static int add(int ac, const char **av, const char *prefix) memset(&opts, 0, sizeof(opts)); opts.checkout = 1; ac = parse_options(ac, av, prefix, options, worktree_usage, 0); - if (!!opts.detach + !!opts.new_branch + !!new_branch_force > 1) + if (!!opts.detach + !!new_branch + !!new_branch_force > 1) die(_("-b, -B, and --detach are mutually exclusive")); if (ac < 1 || ac > 2) usage_with_options(worktree_usage, options); @@ -406,33 +459,25 @@ static int add(int ac, const char **av, const char *prefix) if (!strcmp(branch, "-")) branch = "@{-1}"; - opts.force_new_branch = !!new_branch_force; - if (opts.force_new_branch) { + if (new_branch_force) { struct strbuf symref = STRBUF_INIT; - opts.new_branch = new_branch_force; + new_branch = new_branch_force; if (!opts.force && - !strbuf_check_branch_ref(&symref, opts.new_branch) && + !strbuf_check_branch_ref(&symref, new_branch) && ref_exists(symref.buf)) die_if_checked_out(symref.buf, 0); strbuf_release(&symref); } - if (ac < 2 && !opts.new_branch && !opts.detach) { - int n; - const char *s = worktree_basename(path, &n); - opts.new_branch = xstrndup(s, n); - if (guess_remote) { - struct object_id oid; - const char *remote = - unique_tracking_name(opts.new_branch, &oid); - if (remote) - branch = remote; - } + if (ac < 2 && !new_branch && !opts.detach) { + const char *s = dwim_branch(path, &new_branch); + if (s) + branch = s; } - if (ac == 2 && !opts.new_branch && !opts.detach) { + if (ac == 2 && !new_branch && !opts.detach) { struct object_id oid; struct commit *commit; const char *remote; @@ -441,25 +486,27 @@ static int add(int ac, const char **av, const char *prefix) if (!commit) { remote = unique_tracking_name(branch, &oid); if (remote) { - opts.new_branch = branch; + new_branch = branch; branch = remote; } } } - if (opts.new_branch) { + print_preparing_worktree_line(opts.detach, branch, new_branch, !!new_branch_force); + + if (new_branch) { struct child_process cp = CHILD_PROCESS_INIT; cp.git_cmd = 1; argv_array_push(&cp.args, "branch"); - if (opts.force_new_branch) + if (new_branch_force) argv_array_push(&cp.args, "--force"); - argv_array_push(&cp.args, opts.new_branch); + argv_array_push(&cp.args, new_branch); argv_array_push(&cp.args, branch); if (opt_track) argv_array_push(&cp.args, opt_track); if (run_command(&cp)) return -1; - branch = opts.new_branch; + branch = new_branch; } else if (opt_track) { die(_("--[no-]track can only be used if a new branch is created")); } @@ -783,8 +830,9 @@ static int remove_worktree(int ac, const char **av, const char *prefix) { int force = 0; struct option options[] = { - OPT_BOOL(0, "force", &force, - N_("force removing even if the worktree is dirty")), + OPT__FORCE(&force, + N_("force removing even if the worktree is dirty"), + PARSE_OPT_NOCOMPLETE), OPT_END() }; struct worktree **worktrees, *wt; diff --git a/bulk-checkin.c b/bulk-checkin.c index f8a549dd7a..b7e131c47a 100644 --- a/bulk-checkin.c +++ b/bulk-checkin.c @@ -36,9 +36,9 @@ static void finish_bulk_checkin(struct bulk_checkin_state *state) unlink(state->pack_tmp_name); goto clear_exit; } else if (state->nr_written == 1) { - hashclose(state->f, oid.hash, CSUM_FSYNC); + finalize_hashfile(state->f, oid.hash, CSUM_HASH_IN_STREAM | CSUM_FSYNC | CSUM_CLOSE); } else { - int fd = hashclose(state->f, oid.hash, 0); + int fd = finalize_hashfile(state->f, oid.hash, 0); fixup_pack_header_footer(fd, oid.hash, state->pack_tmp_name, state->nr_written, oid.hash, state->offset); @@ -409,7 +409,7 @@ static int write_bundle_refs(int bundle_fd, struct rev_info *revs) int create_bundle(struct bundle_header *header, const char *path, int argc, const char **argv) { - static struct lock_file lock; + struct lock_file lock = LOCK_INIT; int bundle_fd = -1; int bundle_to_stdout; int ref_count = 0; @@ -373,6 +373,13 @@ extern void free_name_hash(struct index_state *istate); #define read_blob_data_from_cache(path, sz) read_blob_data_from_index(&the_index, (path), (sz)) #endif +#define TYPE_BITS 3 + +/* + * Values in this enum (except those outside the 3 bit range) are part + * of pack file format. See Documentation/technical/pack-format.txt + * for more information. + */ enum object_type { OBJ_BAD = -1, OBJ_NONE = 0, @@ -428,6 +435,7 @@ static inline enum object_type object_type(unsigned int mode) #define GIT_ICASE_PATHSPECS_ENVIRONMENT "GIT_ICASE_PATHSPECS" #define GIT_QUARANTINE_ENVIRONMENT "GIT_QUARANTINE_PATH" #define GIT_OPTIONAL_LOCKS_ENVIRONMENT "GIT_OPTIONAL_LOCKS" +#define GIT_TEXT_DOMAIN_DIR_ENVIRONMENT "GIT_TEXTDOMAINDIR" /* * Environment variable used in handshaking the wire protocol. @@ -634,7 +642,7 @@ extern int unmerged_index(const struct index_state *); */ extern int index_has_changes(struct strbuf *sb); -extern int verify_path(const char *path); +extern int verify_path(const char *path, unsigned mode); extern int strcmp_offset(const char *s1, const char *s2, size_t *first_change); extern int index_dir_exists(struct index_state *istate, const char *name, int namelen); extern void adjust_dirname_case(struct index_state *istate, char *name); @@ -805,6 +813,7 @@ extern char *git_replace_ref_base; extern int fsync_object_files; extern int core_preload_index; +extern int core_commit_graph; extern int core_apply_sparse_checkout; extern int precomposed_unicode; extern int protect_hfs; @@ -1159,7 +1168,15 @@ int normalize_path_copy(char *dst, const char *src); int longest_ancestor_length(const char *path, struct string_list *prefixes); char *strip_path_suffix(const char *path, const char *suffix); int daemon_avoid_alias(const char *path); -extern int is_ntfs_dotgit(const char *name); + +/* + * These functions match their is_hfs_dotgit() counterparts; see utf8.h for + * details. + */ +int is_ntfs_dotgit(const char *name); +int is_ntfs_dotgitmodules(const char *name); +int is_ntfs_dotgitignore(const char *name); +int is_ntfs_dotgitattributes(const char *name); /* * Returns true iff "str" could be confused as a command-line option when @@ -1191,27 +1208,8 @@ static inline void *read_object_file(const struct object_id *oid, enum object_ty return read_object_file_extended(oid, type, size, 1); } -/* - * This internal function is only declared here for the benefit of - * lookup_replace_object(). Please do not call it directly. - */ -extern const struct object_id *do_lookup_replace_object(const struct object_id *oid); - -/* - * If object sha1 should be replaced, return the replacement object's - * name (replaced recursively, if necessary). The return value is - * either sha1 or a pointer to a permanently-allocated value. When - * object replacement is suppressed, always return sha1. - */ -static inline const struct object_id *lookup_replace_object(const struct object_id *oid) -{ - if (!check_replace_refs) - return oid; - return do_lookup_replace_object(oid); -} - /* Read and unpack an object file into memory, write memory to an object file */ -extern int oid_object_info(const struct object_id *, unsigned long *); +int oid_object_info(struct repository *r, const struct object_id *, unsigned long *); extern int hash_object_file(const void *buf, unsigned long len, const char *type, struct object_id *oid); @@ -1692,7 +1690,10 @@ struct object_info { #define OBJECT_INFO_QUICK 8 /* Do not check loose object */ #define OBJECT_INFO_IGNORE_LOOSE 16 -extern int oid_object_info_extended(const struct object_id *, struct object_info *, unsigned flags); + +int oid_object_info_extended(struct repository *r, + const struct object_id *, + struct object_info *, unsigned flags); /* * Set this to 0 to prevent sha1_object_info_extended() from fetching missing diff --git a/ci/run-build-and-tests.sh b/ci/run-build-and-tests.sh index 3735ce413f..4b04c75b7f 100755 --- a/ci/run-build-and-tests.sh +++ b/ci/run-build-and-tests.sh @@ -11,7 +11,10 @@ make --jobs=2 make --quiet test if test "$jobname" = "linux-gcc" then - GIT_TEST_SPLIT_INDEX=YesPlease make --quiet test + export GIT_TEST_SPLIT_INDEX=yes + export GIT_TEST_FULL_IN_PACK_ARRAY=true + export GIT_TEST_OE_SIZE=10 + make --quiet test fi check_unignored_build_artifacts @@ -319,18 +319,20 @@ int git_config_colorbool(const char *var, const char *value) return GIT_COLOR_AUTO; } -static int check_auto_color(void) +static int check_auto_color(int fd) { - if (color_stdout_is_tty < 0) - color_stdout_is_tty = isatty(1); - if (color_stdout_is_tty || (pager_in_use() && pager_use_color)) { + static int color_stderr_is_tty = -1; + int *is_tty_p = fd == 1 ? &color_stdout_is_tty : &color_stderr_is_tty; + if (*is_tty_p < 0) + *is_tty_p = isatty(fd); + if (*is_tty_p || (fd == 1 && pager_in_use() && pager_use_color)) { if (!is_terminal_dumb()) return 1; } return 0; } -int want_color(int var) +int want_color_fd(int fd, int var) { /* * NEEDSWORK: This function is sometimes used from multiple threads, and @@ -339,15 +341,15 @@ int want_color(int var) * is listed in .tsan-suppressions for the time being. */ - static int want_auto = -1; + static int want_auto[3] = { -1, -1, -1 }; if (var < 0) var = git_use_color_default; if (var == GIT_COLOR_AUTO) { - if (want_auto < 0) - want_auto = check_auto_color(); - return want_auto; + if (want_auto[fd] < 0) + want_auto[fd] = check_auto_color(fd); + return want_auto[fd]; } return var; } @@ -88,7 +88,9 @@ int git_config_colorbool(const char *var, const char *value); * Return a boolean whether to use color, where the argument 'var' is * one of GIT_COLOR_UNKNOWN, GIT_COLOR_NEVER, GIT_COLOR_ALWAYS, GIT_COLOR_AUTO. */ -int want_color(int var); +int want_color_fd(int fd, int var); +#define want_color(colorbool) want_color_fd(1, (colorbool)) +#define want_color_stderr(colorbool) want_color_fd(2, (colorbool)) /* * Translate a Git color from 'value' into a string that the terminal can diff --git a/command-list.txt b/command-list.txt index a1fad28fd8..835c5890be 100644 --- a/command-list.txt +++ b/command-list.txt @@ -34,6 +34,7 @@ git-clean mainporcelain git-clone mainporcelain init git-column purehelpers git-commit mainporcelain history +git-commit-graph plumbingmanipulators git-commit-tree plumbingmanipulators git-config ancillarymanipulators git-count-objects ancillaryinterrogators diff --git a/commit-graph.c b/commit-graph.c new file mode 100644 index 0000000000..4c6127088f --- /dev/null +++ b/commit-graph.c @@ -0,0 +1,761 @@ +#include "cache.h" +#include "config.h" +#include "git-compat-util.h" +#include "lockfile.h" +#include "pack.h" +#include "packfile.h" +#include "commit.h" +#include "object.h" +#include "revision.h" +#include "sha1-lookup.h" +#include "commit-graph.h" +#include "object-store.h" + +#define GRAPH_SIGNATURE 0x43475048 /* "CGPH" */ +#define GRAPH_CHUNKID_OIDFANOUT 0x4f494446 /* "OIDF" */ +#define GRAPH_CHUNKID_OIDLOOKUP 0x4f49444c /* "OIDL" */ +#define GRAPH_CHUNKID_DATA 0x43444154 /* "CDAT" */ +#define GRAPH_CHUNKID_LARGEEDGES 0x45444745 /* "EDGE" */ + +#define GRAPH_DATA_WIDTH 36 + +#define GRAPH_VERSION_1 0x1 +#define GRAPH_VERSION GRAPH_VERSION_1 + +#define GRAPH_OID_VERSION_SHA1 1 +#define GRAPH_OID_LEN_SHA1 GIT_SHA1_RAWSZ +#define GRAPH_OID_VERSION GRAPH_OID_VERSION_SHA1 +#define GRAPH_OID_LEN GRAPH_OID_LEN_SHA1 + +#define GRAPH_OCTOPUS_EDGES_NEEDED 0x80000000 +#define GRAPH_PARENT_MISSING 0x7fffffff +#define GRAPH_EDGE_LAST_MASK 0x7fffffff +#define GRAPH_PARENT_NONE 0x70000000 + +#define GRAPH_LAST_EDGE 0x80000000 + +#define GRAPH_FANOUT_SIZE (4 * 256) +#define GRAPH_CHUNKLOOKUP_WIDTH 12 +#define GRAPH_MIN_SIZE (5 * GRAPH_CHUNKLOOKUP_WIDTH + GRAPH_FANOUT_SIZE + \ + GRAPH_OID_LEN + 8) + +char *get_commit_graph_filename(const char *obj_dir) +{ + return xstrfmt("%s/info/commit-graph", obj_dir); +} + +static struct commit_graph *alloc_commit_graph(void) +{ + struct commit_graph *g = xcalloc(1, sizeof(*g)); + g->graph_fd = -1; + + return g; +} + +struct commit_graph *load_commit_graph_one(const char *graph_file) +{ + void *graph_map; + const unsigned char *data, *chunk_lookup; + size_t graph_size; + struct stat st; + uint32_t i; + struct commit_graph *graph; + int fd = git_open(graph_file); + uint64_t last_chunk_offset; + uint32_t last_chunk_id; + uint32_t graph_signature; + unsigned char graph_version, hash_version; + + if (fd < 0) + return NULL; + if (fstat(fd, &st)) { + close(fd); + return NULL; + } + graph_size = xsize_t(st.st_size); + + if (graph_size < GRAPH_MIN_SIZE) { + close(fd); + die("graph file %s is too small", graph_file); + } + graph_map = xmmap(NULL, graph_size, PROT_READ, MAP_PRIVATE, fd, 0); + data = (const unsigned char *)graph_map; + + graph_signature = get_be32(data); + if (graph_signature != GRAPH_SIGNATURE) { + error("graph signature %X does not match signature %X", + graph_signature, GRAPH_SIGNATURE); + goto cleanup_fail; + } + + graph_version = *(unsigned char*)(data + 4); + if (graph_version != GRAPH_VERSION) { + error("graph version %X does not match version %X", + graph_version, GRAPH_VERSION); + goto cleanup_fail; + } + + hash_version = *(unsigned char*)(data + 5); + if (hash_version != GRAPH_OID_VERSION) { + error("hash version %X does not match version %X", + hash_version, GRAPH_OID_VERSION); + goto cleanup_fail; + } + + graph = alloc_commit_graph(); + + graph->hash_len = GRAPH_OID_LEN; + graph->num_chunks = *(unsigned char*)(data + 6); + graph->graph_fd = fd; + graph->data = graph_map; + graph->data_len = graph_size; + + last_chunk_id = 0; + last_chunk_offset = 8; + chunk_lookup = data + 8; + for (i = 0; i < graph->num_chunks; i++) { + uint32_t chunk_id = get_be32(chunk_lookup + 0); + uint64_t chunk_offset = get_be64(chunk_lookup + 4); + int chunk_repeated = 0; + + chunk_lookup += GRAPH_CHUNKLOOKUP_WIDTH; + + if (chunk_offset > graph_size - GIT_MAX_RAWSZ) { + error("improper chunk offset %08x%08x", (uint32_t)(chunk_offset >> 32), + (uint32_t)chunk_offset); + goto cleanup_fail; + } + + switch (chunk_id) { + case GRAPH_CHUNKID_OIDFANOUT: + if (graph->chunk_oid_fanout) + chunk_repeated = 1; + else + graph->chunk_oid_fanout = (uint32_t*)(data + chunk_offset); + break; + + case GRAPH_CHUNKID_OIDLOOKUP: + if (graph->chunk_oid_lookup) + chunk_repeated = 1; + else + graph->chunk_oid_lookup = data + chunk_offset; + break; + + case GRAPH_CHUNKID_DATA: + if (graph->chunk_commit_data) + chunk_repeated = 1; + else + graph->chunk_commit_data = data + chunk_offset; + break; + + case GRAPH_CHUNKID_LARGEEDGES: + if (graph->chunk_large_edges) + chunk_repeated = 1; + else + graph->chunk_large_edges = data + chunk_offset; + break; + } + + if (chunk_repeated) { + error("chunk id %08x appears multiple times", chunk_id); + goto cleanup_fail; + } + + if (last_chunk_id == GRAPH_CHUNKID_OIDLOOKUP) + { + graph->num_commits = (chunk_offset - last_chunk_offset) + / graph->hash_len; + } + + last_chunk_id = chunk_id; + last_chunk_offset = chunk_offset; + } + + return graph; + +cleanup_fail: + munmap(graph_map, graph_size); + close(fd); + exit(1); +} + +/* global storage */ +static struct commit_graph *commit_graph = NULL; + +static void prepare_commit_graph_one(const char *obj_dir) +{ + char *graph_name; + + if (commit_graph) + return; + + graph_name = get_commit_graph_filename(obj_dir); + commit_graph = load_commit_graph_one(graph_name); + + FREE_AND_NULL(graph_name); +} + +static int prepare_commit_graph_run_once = 0; +static void prepare_commit_graph(void) +{ + struct alternate_object_database *alt; + char *obj_dir; + + if (prepare_commit_graph_run_once) + return; + prepare_commit_graph_run_once = 1; + + obj_dir = get_object_directory(); + prepare_commit_graph_one(obj_dir); + prepare_alt_odb(the_repository); + for (alt = the_repository->objects->alt_odb_list; + !commit_graph && alt; + alt = alt->next) + prepare_commit_graph_one(alt->path); +} + +static void close_commit_graph(void) +{ + if (!commit_graph) + return; + + if (commit_graph->graph_fd >= 0) { + munmap((void *)commit_graph->data, commit_graph->data_len); + commit_graph->data = NULL; + close(commit_graph->graph_fd); + } + + FREE_AND_NULL(commit_graph); +} + +static int bsearch_graph(struct commit_graph *g, struct object_id *oid, uint32_t *pos) +{ + return bsearch_hash(oid->hash, g->chunk_oid_fanout, + g->chunk_oid_lookup, g->hash_len, pos); +} + +static struct commit_list **insert_parent_or_die(struct commit_graph *g, + uint64_t pos, + struct commit_list **pptr) +{ + struct commit *c; + struct object_id oid; + hashcpy(oid.hash, g->chunk_oid_lookup + g->hash_len * pos); + c = lookup_commit(&oid); + if (!c) + die("could not find commit %s", oid_to_hex(&oid)); + c->graph_pos = pos; + return &commit_list_insert(c, pptr)->next; +} + +static int fill_commit_in_graph(struct commit *item, struct commit_graph *g, uint32_t pos) +{ + uint32_t edge_value; + uint32_t *parent_data_ptr; + uint64_t date_low, date_high; + struct commit_list **pptr; + const unsigned char *commit_data = g->chunk_commit_data + (g->hash_len + 16) * pos; + + item->object.parsed = 1; + item->graph_pos = pos; + + item->maybe_tree = NULL; + + date_high = get_be32(commit_data + g->hash_len + 8) & 0x3; + date_low = get_be32(commit_data + g->hash_len + 12); + item->date = (timestamp_t)((date_high << 32) | date_low); + + pptr = &item->parents; + + edge_value = get_be32(commit_data + g->hash_len); + if (edge_value == GRAPH_PARENT_NONE) + return 1; + pptr = insert_parent_or_die(g, edge_value, pptr); + + edge_value = get_be32(commit_data + g->hash_len + 4); + if (edge_value == GRAPH_PARENT_NONE) + return 1; + if (!(edge_value & GRAPH_OCTOPUS_EDGES_NEEDED)) { + pptr = insert_parent_or_die(g, edge_value, pptr); + return 1; + } + + parent_data_ptr = (uint32_t*)(g->chunk_large_edges + + 4 * (uint64_t)(edge_value & GRAPH_EDGE_LAST_MASK)); + do { + edge_value = get_be32(parent_data_ptr); + pptr = insert_parent_or_die(g, + edge_value & GRAPH_EDGE_LAST_MASK, + pptr); + parent_data_ptr++; + } while (!(edge_value & GRAPH_LAST_EDGE)); + + return 1; +} + +int parse_commit_in_graph(struct commit *item) +{ + if (!core_commit_graph) + return 0; + if (item->object.parsed) + return 1; + + prepare_commit_graph(); + if (commit_graph) { + uint32_t pos; + int found; + if (item->graph_pos != COMMIT_NOT_FROM_GRAPH) { + pos = item->graph_pos; + found = 1; + } else { + found = bsearch_graph(commit_graph, &(item->object.oid), &pos); + } + + if (found) + return fill_commit_in_graph(item, commit_graph, pos); + } + + return 0; +} + +static struct tree *load_tree_for_commit(struct commit_graph *g, struct commit *c) +{ + struct object_id oid; + const unsigned char *commit_data = g->chunk_commit_data + + GRAPH_DATA_WIDTH * (c->graph_pos); + + hashcpy(oid.hash, commit_data); + c->maybe_tree = lookup_tree(&oid); + + return c->maybe_tree; +} + +struct tree *get_commit_tree_in_graph(const struct commit *c) +{ + if (c->maybe_tree) + return c->maybe_tree; + if (c->graph_pos == COMMIT_NOT_FROM_GRAPH) + BUG("get_commit_tree_in_graph called from non-commit-graph commit"); + + return load_tree_for_commit(commit_graph, (struct commit *)c); +} + +static void write_graph_chunk_fanout(struct hashfile *f, + struct commit **commits, + int nr_commits) +{ + int i, count = 0; + struct commit **list = commits; + + /* + * Write the first-level table (the list is sorted, + * but we use a 256-entry lookup to be able to avoid + * having to do eight extra binary search iterations). + */ + for (i = 0; i < 256; i++) { + while (count < nr_commits) { + if ((*list)->object.oid.hash[0] != i) + break; + count++; + list++; + } + + hashwrite_be32(f, count); + } +} + +static void write_graph_chunk_oids(struct hashfile *f, int hash_len, + struct commit **commits, int nr_commits) +{ + struct commit **list = commits; + int count; + for (count = 0; count < nr_commits; count++, list++) + hashwrite(f, (*list)->object.oid.hash, (int)hash_len); +} + +static const unsigned char *commit_to_sha1(size_t index, void *table) +{ + struct commit **commits = table; + return commits[index]->object.oid.hash; +} + +static void write_graph_chunk_data(struct hashfile *f, int hash_len, + struct commit **commits, int nr_commits) +{ + struct commit **list = commits; + struct commit **last = commits + nr_commits; + uint32_t num_extra_edges = 0; + + while (list < last) { + struct commit_list *parent; + int edge_value; + uint32_t packedDate[2]; + + parse_commit(*list); + hashwrite(f, get_commit_tree_oid(*list)->hash, hash_len); + + parent = (*list)->parents; + + if (!parent) + edge_value = GRAPH_PARENT_NONE; + else { + edge_value = sha1_pos(parent->item->object.oid.hash, + commits, + nr_commits, + commit_to_sha1); + + if (edge_value < 0) + edge_value = GRAPH_PARENT_MISSING; + } + + hashwrite_be32(f, edge_value); + + if (parent) + parent = parent->next; + + if (!parent) + edge_value = GRAPH_PARENT_NONE; + else if (parent->next) + edge_value = GRAPH_OCTOPUS_EDGES_NEEDED | num_extra_edges; + else { + edge_value = sha1_pos(parent->item->object.oid.hash, + commits, + nr_commits, + commit_to_sha1); + if (edge_value < 0) + edge_value = GRAPH_PARENT_MISSING; + } + + hashwrite_be32(f, edge_value); + + if (edge_value & GRAPH_OCTOPUS_EDGES_NEEDED) { + do { + num_extra_edges++; + parent = parent->next; + } while (parent); + } + + if (sizeof((*list)->date) > 4) + packedDate[0] = htonl(((*list)->date >> 32) & 0x3); + else + packedDate[0] = 0; + + packedDate[1] = htonl((*list)->date); + hashwrite(f, packedDate, 8); + + list++; + } +} + +static void write_graph_chunk_large_edges(struct hashfile *f, + struct commit **commits, + int nr_commits) +{ + struct commit **list = commits; + struct commit **last = commits + nr_commits; + struct commit_list *parent; + + while (list < last) { + int num_parents = 0; + for (parent = (*list)->parents; num_parents < 3 && parent; + parent = parent->next) + num_parents++; + + if (num_parents <= 2) { + list++; + continue; + } + + /* Since num_parents > 2, this initializer is safe. */ + for (parent = (*list)->parents->next; parent; parent = parent->next) { + int edge_value = sha1_pos(parent->item->object.oid.hash, + commits, + nr_commits, + commit_to_sha1); + + if (edge_value < 0) + edge_value = GRAPH_PARENT_MISSING; + else if (!parent->next) + edge_value |= GRAPH_LAST_EDGE; + + hashwrite_be32(f, edge_value); + } + + list++; + } +} + +static int commit_compare(const void *_a, const void *_b) +{ + const struct object_id *a = (const struct object_id *)_a; + const struct object_id *b = (const struct object_id *)_b; + return oidcmp(a, b); +} + +struct packed_commit_list { + struct commit **list; + int nr; + int alloc; +}; + +struct packed_oid_list { + struct object_id *list; + int nr; + int alloc; +}; + +static int add_packed_commits(const struct object_id *oid, + struct packed_git *pack, + uint32_t pos, + void *data) +{ + struct packed_oid_list *list = (struct packed_oid_list*)data; + enum object_type type; + off_t offset = nth_packed_object_offset(pack, pos); + struct object_info oi = OBJECT_INFO_INIT; + + oi.typep = &type; + if (packed_object_info(the_repository, pack, offset, &oi) < 0) + die("unable to get type of object %s", oid_to_hex(oid)); + + if (type != OBJ_COMMIT) + return 0; + + ALLOC_GROW(list->list, list->nr + 1, list->alloc); + oidcpy(&(list->list[list->nr]), oid); + list->nr++; + + return 0; +} + +static void add_missing_parents(struct packed_oid_list *oids, struct commit *commit) +{ + struct commit_list *parent; + for (parent = commit->parents; parent; parent = parent->next) { + if (!(parent->item->object.flags & UNINTERESTING)) { + ALLOC_GROW(oids->list, oids->nr + 1, oids->alloc); + oidcpy(&oids->list[oids->nr], &(parent->item->object.oid)); + oids->nr++; + parent->item->object.flags |= UNINTERESTING; + } + } +} + +static void close_reachable(struct packed_oid_list *oids) +{ + int i; + struct commit *commit; + + for (i = 0; i < oids->nr; i++) { + commit = lookup_commit(&oids->list[i]); + if (commit) + commit->object.flags |= UNINTERESTING; + } + + /* + * As this loop runs, oids->nr may grow, but not more + * than the number of missing commits in the reachable + * closure. + */ + for (i = 0; i < oids->nr; i++) { + commit = lookup_commit(&oids->list[i]); + + if (commit && !parse_commit(commit)) + add_missing_parents(oids, commit); + } + + for (i = 0; i < oids->nr; i++) { + commit = lookup_commit(&oids->list[i]); + + if (commit) + commit->object.flags &= ~UNINTERESTING; + } +} + +void write_commit_graph(const char *obj_dir, + const char **pack_indexes, + int nr_packs, + const char **commit_hex, + int nr_commits, + int append) +{ + struct packed_oid_list oids; + struct packed_commit_list commits; + struct hashfile *f; + uint32_t i, count_distinct = 0; + char *graph_name; + int fd; + struct lock_file lk = LOCK_INIT; + uint32_t chunk_ids[5]; + uint64_t chunk_offsets[5]; + int num_chunks; + int num_extra_edges; + struct commit_list *parent; + + oids.nr = 0; + oids.alloc = approximate_object_count() / 4; + + if (append) { + prepare_commit_graph_one(obj_dir); + if (commit_graph) + oids.alloc += commit_graph->num_commits; + } + + if (oids.alloc < 1024) + oids.alloc = 1024; + ALLOC_ARRAY(oids.list, oids.alloc); + + if (append && commit_graph) { + for (i = 0; i < commit_graph->num_commits; i++) { + const unsigned char *hash = commit_graph->chunk_oid_lookup + + commit_graph->hash_len * i; + hashcpy(oids.list[oids.nr++].hash, hash); + } + } + + if (pack_indexes) { + struct strbuf packname = STRBUF_INIT; + int dirlen; + strbuf_addf(&packname, "%s/pack/", obj_dir); + dirlen = packname.len; + for (i = 0; i < nr_packs; i++) { + struct packed_git *p; + strbuf_setlen(&packname, dirlen); + strbuf_addstr(&packname, pack_indexes[i]); + p = add_packed_git(packname.buf, packname.len, 1); + if (!p) + die("error adding pack %s", packname.buf); + if (open_pack_index(p)) + die("error opening index for %s", packname.buf); + for_each_object_in_pack(p, add_packed_commits, &oids); + close_pack(p); + } + strbuf_release(&packname); + } + + if (commit_hex) { + for (i = 0; i < nr_commits; i++) { + const char *end; + struct object_id oid; + struct commit *result; + + if (commit_hex[i] && parse_oid_hex(commit_hex[i], &oid, &end)) + continue; + + result = lookup_commit_reference_gently(&oid, 1); + + if (result) { + ALLOC_GROW(oids.list, oids.nr + 1, oids.alloc); + oidcpy(&oids.list[oids.nr], &(result->object.oid)); + oids.nr++; + } + } + } + + if (!pack_indexes && !commit_hex) + for_each_packed_object(add_packed_commits, &oids, 0); + + close_reachable(&oids); + + QSORT(oids.list, oids.nr, commit_compare); + + count_distinct = 1; + for (i = 1; i < oids.nr; i++) { + if (oidcmp(&oids.list[i-1], &oids.list[i])) + count_distinct++; + } + + if (count_distinct >= GRAPH_PARENT_MISSING) + die(_("the commit graph format cannot write %d commits"), count_distinct); + + commits.nr = 0; + commits.alloc = count_distinct; + ALLOC_ARRAY(commits.list, commits.alloc); + + num_extra_edges = 0; + for (i = 0; i < oids.nr; i++) { + int num_parents = 0; + if (i > 0 && !oidcmp(&oids.list[i-1], &oids.list[i])) + continue; + + commits.list[commits.nr] = lookup_commit(&oids.list[i]); + parse_commit(commits.list[commits.nr]); + + for (parent = commits.list[commits.nr]->parents; + parent; parent = parent->next) + num_parents++; + + if (num_parents > 2) + num_extra_edges += num_parents - 1; + + commits.nr++; + } + num_chunks = num_extra_edges ? 4 : 3; + + if (commits.nr >= GRAPH_PARENT_MISSING) + die(_("too many commits to write graph")); + + graph_name = get_commit_graph_filename(obj_dir); + fd = hold_lock_file_for_update(&lk, graph_name, 0); + + if (fd < 0) { + struct strbuf folder = STRBUF_INIT; + strbuf_addstr(&folder, graph_name); + strbuf_setlen(&folder, strrchr(folder.buf, '/') - folder.buf); + + if (mkdir(folder.buf, 0777) < 0) + die_errno(_("cannot mkdir %s"), folder.buf); + strbuf_release(&folder); + + fd = hold_lock_file_for_update(&lk, graph_name, LOCK_DIE_ON_ERROR); + + if (fd < 0) + die_errno("unable to create '%s'", graph_name); + } + + f = hashfd(lk.tempfile->fd, lk.tempfile->filename.buf); + + hashwrite_be32(f, GRAPH_SIGNATURE); + + hashwrite_u8(f, GRAPH_VERSION); + hashwrite_u8(f, GRAPH_OID_VERSION); + hashwrite_u8(f, num_chunks); + hashwrite_u8(f, 0); /* unused padding byte */ + + chunk_ids[0] = GRAPH_CHUNKID_OIDFANOUT; + chunk_ids[1] = GRAPH_CHUNKID_OIDLOOKUP; + chunk_ids[2] = GRAPH_CHUNKID_DATA; + if (num_extra_edges) + chunk_ids[3] = GRAPH_CHUNKID_LARGEEDGES; + else + chunk_ids[3] = 0; + chunk_ids[4] = 0; + + chunk_offsets[0] = 8 + (num_chunks + 1) * GRAPH_CHUNKLOOKUP_WIDTH; + chunk_offsets[1] = chunk_offsets[0] + GRAPH_FANOUT_SIZE; + chunk_offsets[2] = chunk_offsets[1] + GRAPH_OID_LEN * commits.nr; + chunk_offsets[3] = chunk_offsets[2] + (GRAPH_OID_LEN + 16) * commits.nr; + chunk_offsets[4] = chunk_offsets[3] + 4 * num_extra_edges; + + for (i = 0; i <= num_chunks; i++) { + uint32_t chunk_write[3]; + + chunk_write[0] = htonl(chunk_ids[i]); + chunk_write[1] = htonl(chunk_offsets[i] >> 32); + chunk_write[2] = htonl(chunk_offsets[i] & 0xffffffff); + hashwrite(f, chunk_write, 12); + } + + write_graph_chunk_fanout(f, commits.list, commits.nr); + write_graph_chunk_oids(f, GRAPH_OID_LEN, commits.list, commits.nr); + write_graph_chunk_data(f, GRAPH_OID_LEN, commits.list, commits.nr); + write_graph_chunk_large_edges(f, commits.list, commits.nr); + + close_commit_graph(); + finalize_hashfile(f, NULL, CSUM_HASH_IN_STREAM | CSUM_FSYNC); + commit_lock_file(&lk); + + free(oids.list); + oids.alloc = 0; + oids.nr = 0; +} diff --git a/commit-graph.h b/commit-graph.h new file mode 100644 index 0000000000..260a468e73 --- /dev/null +++ b/commit-graph.h @@ -0,0 +1,48 @@ +#ifndef COMMIT_GRAPH_H +#define COMMIT_GRAPH_H + +#include "git-compat-util.h" + +char *get_commit_graph_filename(const char *obj_dir); + +/* + * Given a commit struct, try to fill the commit struct info, including: + * 1. tree object + * 2. date + * 3. parents. + * + * Returns 1 if and only if the commit was found in the packed graph. + * + * See parse_commit_buffer() for the fallback after this call. + */ +int parse_commit_in_graph(struct commit *item); + +struct tree *get_commit_tree_in_graph(const struct commit *c); + +struct commit_graph { + int graph_fd; + + const unsigned char *data; + size_t data_len; + + unsigned char hash_len; + unsigned char num_chunks; + uint32_t num_commits; + struct object_id oid; + + const uint32_t *chunk_oid_fanout; + const unsigned char *chunk_oid_lookup; + const unsigned char *chunk_commit_data; + const unsigned char *chunk_large_edges; +}; + +struct commit_graph *load_commit_graph_one(const char *graph_file); + +void write_commit_graph(const char *obj_dir, + const char **pack_indexes, + int nr_packs, + const char **commit_hex, + int nr_commits, + int append); + +#endif @@ -1,6 +1,7 @@ #include "cache.h" #include "tag.h" #include "commit.h" +#include "commit-graph.h" #include "pkt-line.h" #include "utf8.h" #include "diff.h" @@ -12,6 +13,7 @@ #include "prio-queue.h" #include "sha1-lookup.h" #include "wt-status.h" +#include "advice.h" static struct commit_extra_header *read_commit_extra_header_lines(const char *buf, size_t len, const char **); @@ -176,6 +178,15 @@ static int read_graft_file(const char *graft_file) struct strbuf buf = STRBUF_INIT; if (!fp) return -1; + if (advice_graft_file_deprecated) + advise(_("Support for <GIT_DIR>/info/grafts is deprecated\n" + "and will be removed in a future Git version.\n" + "\n" + "Please use \"git replace --convert-graft-file\"\n" + "to convert the grafts into replace refs.\n" + "\n" + "Turn this message off by running\n" + "\"git config advice.graftFileDeprecated false\"")); while (!strbuf_getwholeline(&buf, fp, '\n')) { /* The format is just "Commit Parent1 Parent2 ...\n" */ struct commit_graft *graft = read_graft_line(&buf); @@ -295,6 +306,22 @@ void free_commit_buffer(struct commit *commit) } } +struct tree *get_commit_tree(const struct commit *commit) +{ + if (commit->maybe_tree || !commit->object.parsed) + return commit->maybe_tree; + + if (commit->graph_pos == COMMIT_NOT_FROM_GRAPH) + BUG("commit has NULL tree, but was not loaded from commit-graph"); + + return get_commit_tree_in_graph(commit); +} + +struct object_id *get_commit_tree_oid(const struct commit *commit) +{ + return &get_commit_tree(commit)->object.oid; +} + const void *detach_commit_buffer(struct commit *commit, unsigned long *sizep) { struct commit_buffer *v = buffer_slab_peek(&buffer_slab, commit); @@ -334,7 +361,7 @@ int parse_commit_buffer(struct commit *item, const void *buffer, unsigned long s if (get_sha1_hex(bufptr + 5, parent.hash) < 0) return error("bad tree pointer in commit %s", oid_to_hex(&item->object.oid)); - item->tree = lookup_tree(&parent); + item->maybe_tree = lookup_tree(&parent); bufptr += tree_entry_len + 1; /* "tree " + "hex sha1" + "\n" */ pptr = &item->parents; @@ -383,6 +410,8 @@ int parse_commit_gently(struct commit *item, int quiet_on_missing) return -1; if (item->object.parsed) return 0; + if (parse_commit_in_graph(item)) + return 0; buffer = read_object_file(&item->object.oid, &type, &size); if (!buffer) return quiet_on_missing ? -1 : @@ -1288,17 +1317,19 @@ struct commit_extra_header *read_commit_extra_headers(struct commit *commit, return extra; } -void for_each_mergetag(each_mergetag_fn fn, struct commit *commit, void *data) +int for_each_mergetag(each_mergetag_fn fn, struct commit *commit, void *data) { struct commit_extra_header *extra, *to_free; + int res = 0; to_free = read_commit_extra_headers(commit, NULL); - for (extra = to_free; extra; extra = extra->next) { + for (extra = to_free; !res && extra; extra = extra->next) { if (strcmp(extra->key, "mergetag")) continue; /* not a merge tag */ - fn(commit, extra, data); + res = fn(commit, extra, data); } free_commit_extra_headers(to_free); + return res; } static inline int standard_header_field(const char *field, size_t len) @@ -9,6 +9,8 @@ #include "string-list.h" #include "pretty.h" +#define COMMIT_NOT_FROM_GRAPH 0xFFFFFFFF + struct commit_list { struct commit *item; struct commit_list *next; @@ -20,7 +22,14 @@ struct commit { unsigned int index; timestamp_t date; struct commit_list *parents; - struct tree *tree; + + /* + * If the commit is loaded from the commit-graph file, then this + * member may be NULL. Only access it through get_commit_tree() + * or get_commit_tree_oid(). + */ + struct tree *maybe_tree; + uint32_t graph_pos; }; extern int save_commit_buffer; @@ -99,6 +108,9 @@ void unuse_commit_buffer(const struct commit *, const void *buffer); */ void free_commit_buffer(struct commit *); +struct tree *get_commit_tree(const struct commit *); +struct object_id *get_commit_tree_oid(const struct commit *); + /* * Disassociate any cached object buffer from the commit, but do not free it. * The buffer (or NULL, if none) is returned. @@ -291,10 +303,10 @@ extern const char *find_commit_header(const char *msg, const char *key, /* Find the end of the log message, the right place for a new trailer. */ extern int ignore_non_trailer(const char *buf, size_t len); -typedef void (*each_mergetag_fn)(struct commit *commit, struct commit_extra_header *extra, +typedef int (*each_mergetag_fn)(struct commit *commit, struct commit_extra_header *extra, void *cb_data); -extern void for_each_mergetag(each_mergetag_fn fn, struct commit *commit, void *data); +extern int for_each_mergetag(each_mergetag_fn fn, struct commit *commit, void *data); struct merge_remote_desc { struct object *obj; /* the named object, could be a tag */ diff --git a/common-main.c b/common-main.c index b989e136b5..3728f66b4c 100644 --- a/common-main.c +++ b/common-main.c @@ -32,14 +32,14 @@ int main(int argc, const char **argv) */ sanitize_stdfds(); + git_resolve_executable_dir(argv[0]); + git_setup_gettext(); initialize_the_repository(); attr_start(); - git_extract_argv0_path(argv[0]); - restore_sigpipe_to_default(); return cmd_main(argc, argv); diff --git a/compat/mingw.c b/compat/mingw.c index a67872babf..6ded1c859f 100644 --- a/compat/mingw.c +++ b/compat/mingw.c @@ -2221,7 +2221,7 @@ void mingw_startup(void) die_startup(); /* determine size of argv and environ conversion buffer */ - maxlen = wcslen(_wpgmptr); + maxlen = wcslen(wargv[0]); for (i = 1; i < argc; i++) maxlen = max(maxlen, wcslen(wargv[i])); for (i = 0; wenv[i]; i++) @@ -2241,8 +2241,7 @@ void mingw_startup(void) buffer = malloc_startup(maxlen); /* convert command line arguments and environment to UTF-8 */ - __argv[0] = wcstoutfdup_startup(buffer, _wpgmptr, maxlen); - for (i = 1; i < argc; i++) + for (i = 0; i < argc; i++) __argv[i] = wcstoutfdup_startup(buffer, wargv[i], maxlen); for (i = 0; wenv[i]; i++) environ[i] = wcstoutfdup_startup(buffer, wenv[i], maxlen); @@ -16,6 +16,7 @@ #include "string-list.h" #include "utf8.h" #include "dir.h" +#include "color.h" struct config_source { struct config_source *prev; @@ -653,7 +654,45 @@ static int get_base_var(struct strbuf *name) } } -static int git_parse_source(config_fn_t fn, void *data) +struct parse_event_data { + enum config_event_t previous_type; + size_t previous_offset; + const struct config_options *opts; +}; + +static int do_event(enum config_event_t type, struct parse_event_data *data) +{ + size_t offset; + + if (!data->opts || !data->opts->event_fn) + return 0; + + if (type == CONFIG_EVENT_WHITESPACE && + data->previous_type == type) + return 0; + + offset = cf->do_ftell(cf); + /* + * At EOF, the parser always "inserts" an extra '\n', therefore + * the end offset of the event is the current file position, otherwise + * we will already have advanced to the next event. + */ + if (type != CONFIG_EVENT_EOF) + offset--; + + if (data->previous_type != CONFIG_EVENT_EOF && + data->opts->event_fn(data->previous_type, data->previous_offset, + offset, data->opts->event_fn_data) < 0) + return -1; + + data->previous_type = type; + data->previous_offset = offset; + + return 0; +} + +static int git_parse_source(config_fn_t fn, void *data, + const struct config_options *opts) { int comment = 0; int baselen = 0; @@ -664,8 +703,15 @@ static int git_parse_source(config_fn_t fn, void *data) /* U+FEFF Byte Order Mark in UTF8 */ const char *bomptr = utf8_bom; + /* For the parser event callback */ + struct parse_event_data event_data = { + CONFIG_EVENT_EOF, 0, opts + }; + for (;;) { - int c = get_next_char(); + int c; + + c = get_next_char(); if (bomptr && *bomptr) { /* We are at the file beginning; skip UTF8-encoded BOM * if present. Sane editors won't put this in on their @@ -682,18 +728,33 @@ static int git_parse_source(config_fn_t fn, void *data) } } if (c == '\n') { - if (cf->eof) + if (cf->eof) { + if (do_event(CONFIG_EVENT_EOF, &event_data) < 0) + return -1; return 0; + } + if (do_event(CONFIG_EVENT_WHITESPACE, &event_data) < 0) + return -1; comment = 0; continue; } - if (comment || isspace(c)) + if (comment) continue; + if (isspace(c)) { + if (do_event(CONFIG_EVENT_WHITESPACE, &event_data) < 0) + return -1; + continue; + } if (c == '#' || c == ';') { + if (do_event(CONFIG_EVENT_COMMENT, &event_data) < 0) + return -1; comment = 1; continue; } if (c == '[') { + if (do_event(CONFIG_EVENT_SECTION, &event_data) < 0) + return -1; + /* Reset prior to determining a new stem */ strbuf_reset(var); if (get_base_var(var) < 0 || var->len < 1) @@ -704,6 +765,10 @@ static int git_parse_source(config_fn_t fn, void *data) } if (!isalpha(c)) break; + + if (do_event(CONFIG_EVENT_ENTRY, &event_data) < 0) + return -1; + /* * Truncate the var name back to the section header * stem prior to grabbing the suffix part of the name @@ -715,6 +780,9 @@ static int git_parse_source(config_fn_t fn, void *data) break; } + if (do_event(CONFIG_EVENT_ERROR, &event_data) < 0) + return -1; + switch (cf->origin_type) { case CONFIG_ORIGIN_BLOB: error_msg = xstrfmt(_("bad config line %d in blob %s"), @@ -1000,6 +1068,15 @@ int git_config_expiry_date(timestamp_t *timestamp, const char *var, const char * return 0; } +int git_config_color(char *dest, const char *var, const char *value) +{ + if (!value) + return config_error_nonbool(var); + if (color_parse(value, dest) < 0) + return -1; + return 0; +} + static int git_default_core_config(const char *var, const char *value) { /* This needs a better name */ @@ -1172,6 +1249,11 @@ static int git_default_core_config(const char *var, const char *value) return 0; } + if (!strcmp(var, "core.checkroundtripencoding")) { + check_roundtrip_encoding = xstrdup(value); + return 0; + } + if (!strcmp(var, "core.notesref")) { notes_ref_name = xstrdup(value); return 0; @@ -1226,6 +1308,11 @@ static int git_default_core_config(const char *var, const char *value) return 0; } + if (!strcmp(var, "core.commitgraph")) { + core_commit_graph = git_config_bool(var, value); + return 0; + } + if (!strcmp(var, "core.sparsecheckout")) { core_apply_sparse_checkout = git_config_bool(var, value); return 0; @@ -1365,7 +1452,7 @@ int git_default_config(const char *var, const char *value, void *dummy) if (starts_with(var, "mailmap.")) return git_default_mailmap_config(var, value); - if (starts_with(var, "advice.")) + if (starts_with(var, "advice.") || starts_with(var, "color.advice")) return git_default_advice_config(var, value); if (!strcmp(var, "pager.color") || !strcmp(var, "color.pager")) { @@ -1398,7 +1485,8 @@ int git_default_config(const char *var, const char *value, void *dummy) * fgetc, ungetc, ftell of top need to be initialized before calling * this function. */ -static int do_config_from(struct config_source *top, config_fn_t fn, void *data) +static int do_config_from(struct config_source *top, config_fn_t fn, void *data, + const struct config_options *opts) { int ret; @@ -1410,7 +1498,7 @@ static int do_config_from(struct config_source *top, config_fn_t fn, void *data) strbuf_init(&top->var, 1024); cf = top; - ret = git_parse_source(fn, data); + ret = git_parse_source(fn, data, opts); /* pop config-file parsing state stack */ strbuf_release(&top->value); @@ -1423,7 +1511,7 @@ static int do_config_from(struct config_source *top, config_fn_t fn, void *data) static int do_config_from_file(config_fn_t fn, const enum config_origin_type origin_type, const char *name, const char *path, FILE *f, - void *data) + void *data, const struct config_options *opts) { struct config_source top; int ret; @@ -1438,29 +1526,38 @@ static int do_config_from_file(config_fn_t fn, top.do_ftell = config_file_ftell; flockfile(f); - ret = do_config_from(&top, fn, data); + ret = do_config_from(&top, fn, data, opts); funlockfile(f); return ret; } static int git_config_from_stdin(config_fn_t fn, void *data) { - return do_config_from_file(fn, CONFIG_ORIGIN_STDIN, "", NULL, stdin, data); + return do_config_from_file(fn, CONFIG_ORIGIN_STDIN, "", NULL, stdin, + data, NULL); } -int git_config_from_file(config_fn_t fn, const char *filename, void *data) +int git_config_from_file_with_options(config_fn_t fn, const char *filename, + void *data, + const struct config_options *opts) { int ret = -1; FILE *f; f = fopen_or_warn(filename, "r"); if (f) { - ret = do_config_from_file(fn, CONFIG_ORIGIN_FILE, filename, filename, f, data); + ret = do_config_from_file(fn, CONFIG_ORIGIN_FILE, filename, + filename, f, data, opts); fclose(f); } return ret; } +int git_config_from_file(config_fn_t fn, const char *filename, void *data) +{ + return git_config_from_file_with_options(fn, filename, data, NULL); +} + int git_config_from_mem(config_fn_t fn, const enum config_origin_type origin_type, const char *name, const char *buf, size_t len, void *data) { @@ -1477,7 +1574,7 @@ int git_config_from_mem(config_fn_t fn, const enum config_origin_type origin_typ top.do_ungetc = config_buf_ungetc; top.do_ftell = config_buf_ftell; - return do_config_from(&top, fn, data); + return do_config_from(&top, fn, data, NULL); } int git_config_from_blob_oid(config_fn_t fn, @@ -2221,96 +2318,98 @@ void git_die_config(const char *key, const char *err, ...) * Find all the stuff for git_config_set() below. */ -static struct { +struct config_store_data { int baselen; char *key; int do_not_match; regex_t *value_regex; int multi_replace; - size_t *offset; - unsigned int offset_alloc; - enum { START, SECTION_SEEN, SECTION_END_SEEN, KEY_SEEN } state; - unsigned int seen; -} store; + struct { + size_t begin, end; + enum config_event_t type; + int is_keys_section; + } *parsed; + unsigned int parsed_nr, parsed_alloc, *seen, seen_nr, seen_alloc; + unsigned int key_seen:1, section_seen:1, is_keys_section:1; +}; -static int matches(const char *key, const char *value) +static int matches(const char *key, const char *value, + const struct config_store_data *store) { - if (strcmp(key, store.key)) + if (strcmp(key, store->key)) return 0; /* not ours */ - if (!store.value_regex) + if (!store->value_regex) return 1; /* always matches */ - if (store.value_regex == CONFIG_REGEX_NONE) + if (store->value_regex == CONFIG_REGEX_NONE) return 0; /* never matches */ - return store.do_not_match ^ - (value && !regexec(store.value_regex, value, 0, NULL, 0)); + return store->do_not_match ^ + (value && !regexec(store->value_regex, value, 0, NULL, 0)); +} + +static int store_aux_event(enum config_event_t type, + size_t begin, size_t end, void *data) +{ + struct config_store_data *store = data; + + ALLOC_GROW(store->parsed, store->parsed_nr + 1, store->parsed_alloc); + store->parsed[store->parsed_nr].begin = begin; + store->parsed[store->parsed_nr].end = end; + store->parsed[store->parsed_nr].type = type; + + if (type == CONFIG_EVENT_SECTION) { + if (cf->var.len < 2 || cf->var.buf[cf->var.len - 1] != '.') + BUG("Invalid section name '%s'", cf->var.buf); + + /* Is this the section we were looking for? */ + store->is_keys_section = + store->parsed[store->parsed_nr].is_keys_section = + cf->var.len - 1 == store->baselen && + !strncasecmp(cf->var.buf, store->key, store->baselen); + if (store->is_keys_section) { + store->section_seen = 1; + ALLOC_GROW(store->seen, store->seen_nr + 1, + store->seen_alloc); + store->seen[store->seen_nr] = store->parsed_nr; + } + } + + store->parsed_nr++; + + return 0; } static int store_aux(const char *key, const char *value, void *cb) { - const char *ep; - size_t section_len; + struct config_store_data *store = cb; - switch (store.state) { - case KEY_SEEN: - if (matches(key, value)) { - if (store.seen == 1 && store.multi_replace == 0) { + if (store->key_seen) { + if (matches(key, value, store)) { + if (store->seen_nr == 1 && store->multi_replace == 0) { warning(_("%s has multiple values"), key); } - ALLOC_GROW(store.offset, store.seen + 1, - store.offset_alloc); + ALLOC_GROW(store->seen, store->seen_nr + 1, + store->seen_alloc); - store.offset[store.seen] = cf->do_ftell(cf); - store.seen++; + store->seen[store->seen_nr] = store->parsed_nr; + store->seen_nr++; } - break; - case SECTION_SEEN: + } else if (store->is_keys_section) { /* - * What we are looking for is in store.key (both - * section and var), and its section part is baselen - * long. We found key (again, both section and var). - * We would want to know if this key is in the same - * section as what we are looking for. We already - * know we are in the same section as what should - * hold store.key. + * Do not increment matches yet: this may not be a match, but we + * are in the desired section. */ - ep = strrchr(key, '.'); - section_len = ep - key; + ALLOC_GROW(store->seen, store->seen_nr + 1, store->seen_alloc); + store->seen[store->seen_nr] = store->parsed_nr; + store->section_seen = 1; - if ((section_len != store.baselen) || - memcmp(key, store.key, section_len+1)) { - store.state = SECTION_END_SEEN; - break; - } - - /* - * Do not increment matches: this is no match, but we - * just made sure we are in the desired section. - */ - ALLOC_GROW(store.offset, store.seen + 1, - store.offset_alloc); - store.offset[store.seen] = cf->do_ftell(cf); - /* fallthru */ - case SECTION_END_SEEN: - case START: - if (matches(key, value)) { - ALLOC_GROW(store.offset, store.seen + 1, - store.offset_alloc); - store.offset[store.seen] = cf->do_ftell(cf); - store.state = KEY_SEEN; - store.seen++; - } else { - if (strrchr(key, '.') - key == store.baselen && - !strncmp(key, store.key, store.baselen)) { - store.state = SECTION_SEEN; - ALLOC_GROW(store.offset, - store.seen + 1, - store.offset_alloc); - store.offset[store.seen] = cf->do_ftell(cf); - } + if (matches(key, value, store)) { + store->seen_nr++; + store->key_seen = 1; } } + return 0; } @@ -2322,31 +2421,33 @@ static int write_error(const char *filename) return 4; } -static struct strbuf store_create_section(const char *key) +static struct strbuf store_create_section(const char *key, + const struct config_store_data *store) { const char *dot; int i; struct strbuf sb = STRBUF_INIT; - dot = memchr(key, '.', store.baselen); + dot = memchr(key, '.', store->baselen); if (dot) { strbuf_addf(&sb, "[%.*s \"", (int)(dot - key), key); - for (i = dot - key + 1; i < store.baselen; i++) { + for (i = dot - key + 1; i < store->baselen; i++) { if (key[i] == '"' || key[i] == '\\') strbuf_addch(&sb, '\\'); strbuf_addch(&sb, key[i]); } strbuf_addstr(&sb, "\"]\n"); } else { - strbuf_addf(&sb, "[%.*s]\n", store.baselen, key); + strbuf_addf(&sb, "[%.*s]\n", store->baselen, key); } return sb; } -static ssize_t write_section(int fd, const char *key) +static ssize_t write_section(int fd, const char *key, + const struct config_store_data *store) { - struct strbuf sb = store_create_section(key); + struct strbuf sb = store_create_section(key, store); ssize_t ret; ret = write_in_full(fd, sb.buf, sb.len); @@ -2355,11 +2456,12 @@ static ssize_t write_section(int fd, const char *key) return ret; } -static ssize_t write_pair(int fd, const char *key, const char *value) +static ssize_t write_pair(int fd, const char *key, const char *value, + const struct config_store_data *store) { int i; ssize_t ret; - int length = strlen(key + store.baselen + 1); + int length = strlen(key + store->baselen + 1); const char *quote = ""; struct strbuf sb = STRBUF_INIT; @@ -2379,7 +2481,7 @@ static ssize_t write_pair(int fd, const char *key, const char *value) quote = "\""; strbuf_addf(&sb, "\t%.*s = %s", - length, key + store.baselen + 1, quote); + length, key + store->baselen + 1, quote); for (i = 0; value[i]; i++) switch (value[i]) { @@ -2405,30 +2507,85 @@ static ssize_t write_pair(int fd, const char *key, const char *value) return ret; } -static ssize_t find_beginning_of_line(const char *contents, size_t size, - size_t offset_, int *found_bracket) +/* + * If we are about to unset the last key(s) in a section, and if there are + * no comments surrounding (or included in) the section, we will want to + * extend begin/end to remove the entire section. + * + * Note: the parameter `seen_ptr` points to the index into the store.seen + * array. * This index may be incremented if a section has more than one + * entry (which all are to be removed). + */ +static void maybe_remove_section(struct config_store_data *store, + const char *contents, + size_t *begin_offset, size_t *end_offset, + int *seen_ptr) { - size_t equal_offset = size, bracket_offset = size; - ssize_t offset; + size_t begin; + int i, seen, section_seen = 0; + + /* + * First, ensure that this is the first key, and that there are no + * comments before the entry nor before the section header. + */ + seen = *seen_ptr; + for (i = store->seen[seen]; i > 0; i--) { + enum config_event_t type = store->parsed[i - 1].type; + + if (type == CONFIG_EVENT_COMMENT) + /* There is a comment before this entry or section */ + return; + if (type == CONFIG_EVENT_ENTRY) { + if (!section_seen) + /* This is not the section's first entry. */ + return; + /* We encountered no comment before the section. */ + break; + } + if (type == CONFIG_EVENT_SECTION) { + if (!store->parsed[i - 1].is_keys_section) + break; + section_seen = 1; + } + } + begin = store->parsed[i].begin; + + /* + * Next, make sure that we are removing he last key(s) in the section, + * and that there are no comments that are possibly about the current + * section. + */ + for (i = store->seen[seen] + 1; i < store->parsed_nr; i++) { + enum config_event_t type = store->parsed[i].type; -contline: - for (offset = offset_-2; offset > 0 - && contents[offset] != '\n'; offset--) - switch (contents[offset]) { - case '=': equal_offset = offset; break; - case ']': bracket_offset = offset; break; + if (type == CONFIG_EVENT_COMMENT) + return; + if (type == CONFIG_EVENT_SECTION) { + if (store->parsed[i].is_keys_section) + continue; + break; + } + if (type == CONFIG_EVENT_ENTRY) { + if (++seen < store->seen_nr && + i == store->seen[seen]) + /* We want to remove this entry, too */ + continue; + /* There is another entry in this section. */ + return; } - if (offset > 0 && contents[offset-1] == '\\') { - offset_ = offset; - goto contline; } - if (bracket_offset < equal_offset) { - *found_bracket = 1; - offset = bracket_offset+1; - } else - offset++; - return offset; + /* + * We are really removing the last entry/entries from this section, and + * there are no enclosed or surrounding comments. Remove the entire, + * now-empty section. + */ + *seen_ptr = seen; + *begin_offset = begin; + if (i < store->parsed_nr) + *end_offset = store->parsed[i].begin; + else + *end_offset = store->parsed[store->parsed_nr - 1].end; } int git_config_set_in_file_gently(const char *config_filename, @@ -2489,6 +2646,9 @@ int git_config_set_multivar_in_file_gently(const char *config_filename, char *filename_buf = NULL; char *contents = NULL; size_t contents_sz; + struct config_store_data store; + + memset(&store, 0, sizeof(store)); /* parse-key returns negative; flip the sign to feed exit(3) */ ret = 0 - git_config_parse_key(key, &store.key, &store.baselen); @@ -2531,13 +2691,14 @@ int git_config_set_multivar_in_file_gently(const char *config_filename, } store.key = (char *)key; - if (write_section(fd, key) < 0 || - write_pair(fd, key, value) < 0) + if (write_section(fd, key, &store) < 0 || + write_pair(fd, key, value, &store) < 0) goto write_err_out; } else { struct stat st; size_t copy_begin, copy_end; int i, new_line = 0; + struct config_options opts; if (value_regex == NULL) store.value_regex = NULL; @@ -2560,18 +2721,24 @@ int git_config_set_multivar_in_file_gently(const char *config_filename, } } - ALLOC_GROW(store.offset, 1, store.offset_alloc); - store.offset[0] = 0; - store.state = START; - store.seen = 0; + ALLOC_GROW(store.parsed, 1, store.parsed_alloc); + store.parsed[0].end = 0; + + memset(&opts, 0, sizeof(opts)); + opts.event_fn = store_aux_event; + opts.event_fn_data = &store; /* - * After this, store.offset will contain the *end* offset - * of the last match, or remain at 0 if no match was found. + * After this, store.parsed will contain offsets of all the + * parsed elements, and store.seen will contain a list of + * matches, as indices into store.parsed. + * * As a side effect, we make sure to transform only a valid * existing config file. */ - if (git_config_from_file(store_aux, config_filename, NULL)) { + if (git_config_from_file_with_options(store_aux, + config_filename, + &store, &opts)) { error("invalid config file %s", config_filename); free(store.key); if (store.value_regex != NULL && @@ -2591,8 +2758,8 @@ int git_config_set_multivar_in_file_gently(const char *config_filename, } /* if nothing to unset, or too many matches, error out */ - if ((store.seen == 0 && value == NULL) || - (store.seen > 1 && multi_replace == 0)) { + if ((store.seen_nr == 0 && value == NULL) || + (store.seen_nr > 1 && multi_replace == 0)) { ret = CONFIG_NOTHING_SET; goto out_free; } @@ -2623,18 +2790,49 @@ int git_config_set_multivar_in_file_gently(const char *config_filename, goto out_free; } - if (store.seen == 0) - store.seen = 1; + if (store.seen_nr == 0) { + if (!store.seen_alloc) { + /* Did not see key nor section */ + ALLOC_GROW(store.seen, 1, store.seen_alloc); + store.seen[0] = store.parsed_nr + - !!store.parsed_nr; + } + store.seen_nr = 1; + } - for (i = 0, copy_begin = 0; i < store.seen; i++) { - if (store.offset[i] == 0) { - store.offset[i] = copy_end = contents_sz; - } else if (store.state != KEY_SEEN) { - copy_end = store.offset[i]; - } else - copy_end = find_beginning_of_line( - contents, contents_sz, - store.offset[i]-2, &new_line); + for (i = 0, copy_begin = 0; i < store.seen_nr; i++) { + size_t replace_end; + int j = store.seen[i]; + + new_line = 0; + if (!store.key_seen) { + copy_end = store.parsed[j].end; + /* include '\n' when copying section header */ + if (copy_end > 0 && copy_end < contents_sz && + contents[copy_end - 1] != '\n' && + contents[copy_end] == '\n') + copy_end++; + replace_end = copy_end; + } else { + replace_end = store.parsed[j].end; + copy_end = store.parsed[j].begin; + if (!value) + maybe_remove_section(&store, contents, + ©_end, + &replace_end, &i); + /* + * Swallow preceding white-space on the same + * line. + */ + while (copy_end > 0 ) { + char c = contents[copy_end - 1]; + + if (isspace(c) && c != '\n') + copy_end--; + else + break; + } + } if (copy_end > 0 && contents[copy_end-1] != '\n') new_line = 1; @@ -2648,16 +2846,16 @@ int git_config_set_multivar_in_file_gently(const char *config_filename, write_str_in_full(fd, "\n") < 0) goto write_err_out; } - copy_begin = store.offset[i]; + copy_begin = replace_end; } /* write the pair (value == NULL means unset) */ if (value != NULL) { - if (store.state == START) { - if (write_section(fd, key) < 0) + if (!store.section_seen) { + if (write_section(fd, key, &store) < 0) goto write_err_out; } - if (write_pair(fd, key, value) < 0) + if (write_pair(fd, key, value, &store) < 0) goto write_err_out; } @@ -2781,7 +2979,8 @@ static int section_name_is_ok(const char *name) /* if new_name == NULL, the section is removed instead */ static int git_config_copy_or_rename_section_in_file(const char *config_filename, - const char *old_name, const char *new_name, int copy) + const char *old_name, + const char *new_name, int copy) { int ret = 0, remove = 0; char *filename_buf = NULL; @@ -2791,6 +2990,9 @@ static int git_config_copy_or_rename_section_in_file(const char *config_filename FILE *config_file = NULL; struct stat st; struct strbuf copystr = STRBUF_INIT; + struct config_store_data store; + + memset(&store, 0, sizeof(store)); if (new_name && !section_name_is_ok(new_name)) { ret = error("invalid section name: %s", new_name); @@ -2860,7 +3062,7 @@ static int git_config_copy_or_rename_section_in_file(const char *config_filename } store.baselen = strlen(new_name); if (!copy) { - if (write_section(out_fd, new_name) < 0) { + if (write_section(out_fd, new_name, &store) < 0) { ret = write_error(get_lock_file_path(&lock)); goto out; } @@ -2881,7 +3083,7 @@ static int git_config_copy_or_rename_section_in_file(const char *config_filename output[0] = '\t'; } } else { - copystr = store_create_section(new_name); + copystr = store_create_section(new_name, &store); } } remove = 0; @@ -28,15 +28,40 @@ enum config_origin_type { CONFIG_ORIGIN_CMDLINE }; +enum config_event_t { + CONFIG_EVENT_SECTION, + CONFIG_EVENT_ENTRY, + CONFIG_EVENT_WHITESPACE, + CONFIG_EVENT_COMMENT, + CONFIG_EVENT_EOF, + CONFIG_EVENT_ERROR +}; + +/* + * The parser event function (if not NULL) is called with the event type and + * the begin/end offsets of the parsed elements. + * + * Note: for CONFIG_EVENT_ENTRY (i.e. config variables), the trailing newline + * character is considered part of the element. + */ +typedef int (*config_parser_event_fn_t)(enum config_event_t type, + size_t begin_offset, size_t end_offset, + void *event_fn_data); + struct config_options { unsigned int respect_includes : 1; const char *commondir; const char *git_dir; + config_parser_event_fn_t event_fn; + void *event_fn_data; }; typedef int (*config_fn_t)(const char *, const char *, void *); extern int git_default_config(const char *, const char *, void *); extern int git_config_from_file(config_fn_t fn, const char *, void *); +extern int git_config_from_file_with_options(config_fn_t fn, const char *, + void *, + const struct config_options *); extern int git_config_from_mem(config_fn_t fn, const enum config_origin_type, const char *name, const char *buf, size_t len, void *data); extern int git_config_from_blob_oid(config_fn_t fn, const char *name, @@ -59,6 +84,7 @@ extern int git_config_bool(const char *, const char *); extern int git_config_string(const char **, const char *, const char *); extern int git_config_pathname(const char **, const char *, const char *); extern int git_config_expiry_date(timestamp_t *, const char *, const char *); +extern int git_config_color(char *, const char *, const char *); extern int git_config_set_in_file_gently(const char *, const char *, const char *); extern void git_config_set_in_file(const char *, const char *, const char *); extern int git_config_set_gently(const char *, const char *); diff --git a/config.mak.dev b/config.mak.dev new file mode 100644 index 0000000000..2d244ca470 --- /dev/null +++ b/config.mak.dev @@ -0,0 +1,42 @@ +ifeq ($(filter no-error,$(DEVOPTS)),) +CFLAGS += -Werror +endif +CFLAGS += -Wdeclaration-after-statement +CFLAGS += -Wno-format-zero-length +CFLAGS += -Wold-style-definition +CFLAGS += -Woverflow +CFLAGS += -Wpointer-arith +CFLAGS += -Wstrict-prototypes +CFLAGS += -Wunused +CFLAGS += -Wvla + +ifndef COMPILER_FEATURES +COMPILER_FEATURES := $(shell ./detect-compiler $(CC)) +endif + +ifneq ($(filter clang4,$(COMPILER_FEATURES)),) +CFLAGS += -Wtautological-constant-out-of-range-compare +endif + +ifneq ($(or $(filter gcc6,$(COMPILER_FEATURES)),$(filter clang4,$(COMPILER_FEATURES))),) +CFLAGS += -Wextra +# if a function is public, there should be a prototype and the right +# header file should be included. If not, it should be static. +CFLAGS += -Wmissing-prototypes +ifeq ($(filter extra-all,$(DEVOPTS)),) +# These are disabled because we have these all over the place. +CFLAGS += -Wno-empty-body +CFLAGS += -Wno-missing-field-initializers +CFLAGS += -Wno-sign-compare +CFLAGS += -Wno-unused-function +CFLAGS += -Wno-unused-parameter +endif +endif + +# uninitialized warnings on gcc 4.9.2 in xdiff/xdiffi.c and config.c +# not worth fixing since newer compilers correctly stop complaining +ifneq ($(filter gcc4,$(COMPILER_FEATURES)),) +ifeq ($(filter gcc5,$(COMPILER_FEATURES)),) +CFLAGS += -Wno-uninitialized +endif +endif diff --git a/config.mak.uname b/config.mak.uname index 6a1d0de0cc..684fc5bf02 100644 --- a/config.mak.uname +++ b/config.mak.uname @@ -37,6 +37,8 @@ ifeq ($(uname_S),Linux) HAVE_GETDELIM = YesPlease SANE_TEXT_GREP=-a FREAD_READS_DIRECTORIES = UnfortunatelyYes + BASIC_CFLAGS += -DHAVE_SYSINFO + PROCFS_EXECUTABLE_PATH = /proc/self/exe endif ifeq ($(uname_S),GNU/kFreeBSD) HAVE_ALLOCA_H = YesPlease @@ -111,6 +113,7 @@ ifeq ($(uname_S),Darwin) BASIC_CFLAGS += -DPROTECT_HFS_DEFAULT=1 HAVE_BSD_SYSCTL = YesPlease FREAD_READS_DIRECTORIES = UnfortunatelyYes + HAVE_NS_GET_EXECUTABLE_PATH = YesPlease endif ifeq ($(uname_S),SunOS) NEEDS_SOCKET = YesPlease @@ -205,6 +208,7 @@ ifeq ($(uname_S),FreeBSD) HAVE_PATHS_H = YesPlease GMTIME_UNRELIABLE_ERRORS = UnfortunatelyYes HAVE_BSD_SYSCTL = YesPlease + HAVE_BSD_KERN_PROC_SYSCTL = YesPlease PAGER_ENV = LESS=FRX LV=-c MORE=FRX FREAD_READS_DIRECTORIES = UnfortunatelyYes endif @@ -217,6 +221,8 @@ ifeq ($(uname_S),OpenBSD) BASIC_LDFLAGS += -L/usr/local/lib HAVE_PATHS_H = YesPlease HAVE_BSD_SYSCTL = YesPlease + HAVE_BSD_KERN_PROC_SYSCTL = YesPlease + PROCFS_EXECUTABLE_PATH = /proc/curproc/file endif ifeq ($(uname_S),MirBSD) NO_STRCASESTR = YesPlease @@ -235,6 +241,8 @@ ifeq ($(uname_S),NetBSD) USE_ST_TIMESPEC = YesPlease HAVE_PATHS_H = YesPlease HAVE_BSD_SYSCTL = YesPlease + HAVE_BSD_KERN_PROC_SYSCTL = YesPlease + PROCFS_EXECUTABLE_PATH = /proc/curproc/exe endif ifeq ($(uname_S),AIX) DEFAULT_PAGER = more @@ -350,6 +358,7 @@ ifeq ($(uname_S),Windows) SNPRINTF_RETURNS_BOGUS = YesPlease NO_SVN_TESTS = YesPlease RUNTIME_PREFIX = YesPlease + HAVE_WPGMPTR = YesWeDo NO_ST_BLOCKS_IN_STRUCT_STAT = YesPlease NO_NSEC = YesPlease USE_WIN32_MMAP = YesPlease @@ -499,6 +508,7 @@ ifneq (,$(findstring MINGW,$(uname_S))) NO_SVN_TESTS = YesPlease NO_PERL_MAKEMAKER = YesPlease RUNTIME_PREFIX = YesPlease + HAVE_WPGMPTR = YesWeDo NO_ST_BLOCKS_IN_STRUCT_STAT = YesPlease NO_NSEC = YesPlease USE_WIN32_MMAP = YesPlease @@ -12,9 +12,11 @@ #include "sha1-array.h" #include "transport.h" #include "strbuf.h" +#include "version.h" #include "protocol.h" -static char *server_capabilities; +static char *server_capabilities_v1; +static struct argv_array server_capabilities_v2 = ARGV_ARRAY_INIT; static const char *parse_feature_value(const char *, const char *, int *); static int check_ref(const char *name, unsigned int flags) @@ -46,8 +48,14 @@ int check_ref_type(const struct ref *ref, int flags) return check_ref(ref->name, flags); } -static void die_initial_contact(int unexpected) +static NORETURN void die_initial_contact(int unexpected) { + /* + * A hang-up after seeing some response from the other end + * means that it is unexpected, as we know the other end is + * willing to talk to us. A hang-up before seeing any + * response does not necessarily mean an ACL problem, though. + */ if (unexpected) die(_("The remote end hung up upon initial contact")); else @@ -56,6 +64,92 @@ static void die_initial_contact(int unexpected) "and the repository exists.")); } +/* Checks if the server supports the capability 'c' */ +int server_supports_v2(const char *c, int die_on_error) +{ + int i; + + for (i = 0; i < server_capabilities_v2.argc; i++) { + const char *out; + if (skip_prefix(server_capabilities_v2.argv[i], c, &out) && + (!*out || *out == '=')) + return 1; + } + + if (die_on_error) + die("server doesn't support '%s'", c); + + return 0; +} + +int server_supports_feature(const char *c, const char *feature, + int die_on_error) +{ + int i; + + for (i = 0; i < server_capabilities_v2.argc; i++) { + const char *out; + if (skip_prefix(server_capabilities_v2.argv[i], c, &out) && + (!*out || *(out++) == '=')) { + if (parse_feature_request(out, feature)) + return 1; + else + break; + } + } + + if (die_on_error) + die("server doesn't support feature '%s'", feature); + + return 0; +} + +static void process_capabilities_v2(struct packet_reader *reader) +{ + while (packet_reader_read(reader) == PACKET_READ_NORMAL) + argv_array_push(&server_capabilities_v2, reader->line); + + if (reader->status != PACKET_READ_FLUSH) + die("expected flush after capabilities"); +} + +enum protocol_version discover_version(struct packet_reader *reader) +{ + enum protocol_version version = protocol_unknown_version; + + /* + * Peek the first line of the server's response to + * determine the protocol version the server is speaking. + */ + switch (packet_reader_peek(reader)) { + case PACKET_READ_EOF: + die_initial_contact(0); + case PACKET_READ_FLUSH: + case PACKET_READ_DELIM: + version = protocol_v0; + break; + case PACKET_READ_NORMAL: + version = determine_protocol_version_client(reader->line); + break; + } + + switch (version) { + case protocol_v2: + process_capabilities_v2(reader); + break; + case protocol_v1: + /* Read the peeked version line */ + packet_reader_read(reader); + break; + case protocol_v0: + break; + case protocol_unknown_version: + BUG("unknown protocol version"); + } + + return version; +} + static void parse_one_symref_info(struct string_list *symref, const char *val, int len) { char *sym, *target; @@ -85,7 +179,7 @@ reject: static void annotate_refs_with_symref_info(struct ref *ref) { struct string_list symref = STRING_LIST_INIT_DUP; - const char *feature_list = server_capabilities; + const char *feature_list = server_capabilities_v1; while (feature_list) { int len; @@ -109,60 +203,21 @@ static void annotate_refs_with_symref_info(struct ref *ref) string_list_clear(&symref, 0); } -/* - * Read one line of a server's ref advertisement into packet_buffer. - */ -static int read_remote_ref(int in, char **src_buf, size_t *src_len, - int *responded) -{ - int len = packet_read(in, src_buf, src_len, - packet_buffer, sizeof(packet_buffer), - PACKET_READ_GENTLE_ON_EOF | - PACKET_READ_CHOMP_NEWLINE); - const char *arg; - if (len < 0) - die_initial_contact(*responded); - if (len > 4 && skip_prefix(packet_buffer, "ERR ", &arg)) - die("remote error: %s", arg); - - *responded = 1; - - return len; -} - -#define EXPECTING_PROTOCOL_VERSION 0 -#define EXPECTING_FIRST_REF 1 -#define EXPECTING_REF 2 -#define EXPECTING_SHALLOW 3 - -/* Returns 1 if packet_buffer is a protocol version pkt-line, 0 otherwise. */ -static int process_protocol_version(void) +static void process_capabilities(const char *line, int *len) { - switch (determine_protocol_version_client(packet_buffer)) { - case protocol_v1: - return 1; - case protocol_v0: - return 0; - default: - die("server is speaking an unknown protocol"); - } -} - -static void process_capabilities(int *len) -{ - int nul_location = strlen(packet_buffer); + int nul_location = strlen(line); if (nul_location == *len) return; - server_capabilities = xstrdup(packet_buffer + nul_location + 1); + server_capabilities_v1 = xstrdup(line + nul_location + 1); *len = nul_location; } -static int process_dummy_ref(void) +static int process_dummy_ref(const char *line) { struct object_id oid; const char *name; - if (parse_oid_hex(packet_buffer, &oid, &name)) + if (parse_oid_hex(line, &oid, &name)) return 0; if (*name != ' ') return 0; @@ -171,20 +226,20 @@ static int process_dummy_ref(void) return !oidcmp(&null_oid, &oid) && !strcmp(name, "capabilities^{}"); } -static void check_no_capabilities(int len) +static void check_no_capabilities(const char *line, int len) { - if (strlen(packet_buffer) != len) + if (strlen(line) != len) warning("Ignoring capabilities after first line '%s'", - packet_buffer + strlen(packet_buffer)); + line + strlen(line)); } -static int process_ref(int len, struct ref ***list, unsigned int flags, - struct oid_array *extra_have) +static int process_ref(const char *line, int len, struct ref ***list, + unsigned int flags, struct oid_array *extra_have) { struct object_id old_oid; const char *name; - if (parse_oid_hex(packet_buffer, &old_oid, &name)) + if (parse_oid_hex(line, &old_oid, &name)) return 0; if (*name != ' ') return 0; @@ -200,16 +255,17 @@ static int process_ref(int len, struct ref ***list, unsigned int flags, **list = ref; *list = &ref->next; } - check_no_capabilities(len); + check_no_capabilities(line, len); return 1; } -static int process_shallow(int len, struct oid_array *shallow_points) +static int process_shallow(const char *line, int len, + struct oid_array *shallow_points) { const char *arg; struct object_id old_oid; - if (!skip_prefix(packet_buffer, "shallow ", &arg)) + if (!skip_prefix(line, "shallow ", &arg)) return 0; if (get_oid_hex(arg, &old_oid)) @@ -217,60 +273,68 @@ static int process_shallow(int len, struct oid_array *shallow_points) if (!shallow_points) die("repository on the other end cannot be shallow"); oid_array_append(shallow_points, &old_oid); - check_no_capabilities(len); + check_no_capabilities(line, len); return 1; } +enum get_remote_heads_state { + EXPECTING_FIRST_REF = 0, + EXPECTING_REF, + EXPECTING_SHALLOW, + EXPECTING_DONE, +}; + /* * Read all the refs from the other end */ -struct ref **get_remote_heads(int in, char *src_buf, size_t src_len, +struct ref **get_remote_heads(struct packet_reader *reader, struct ref **list, unsigned int flags, struct oid_array *extra_have, struct oid_array *shallow_points) { struct ref **orig_list = list; - - /* - * A hang-up after seeing some response from the other end - * means that it is unexpected, as we know the other end is - * willing to talk to us. A hang-up before seeing any - * response does not necessarily mean an ACL problem, though. - */ - int responded = 0; - int len; - int state = EXPECTING_PROTOCOL_VERSION; + int len = 0; + enum get_remote_heads_state state = EXPECTING_FIRST_REF; + const char *arg; *list = NULL; - while ((len = read_remote_ref(in, &src_buf, &src_len, &responded))) { + while (state != EXPECTING_DONE) { + switch (packet_reader_read(reader)) { + case PACKET_READ_EOF: + die_initial_contact(1); + case PACKET_READ_NORMAL: + len = reader->pktlen; + if (len > 4 && skip_prefix(reader->line, "ERR ", &arg)) + die("remote error: %s", arg); + break; + case PACKET_READ_FLUSH: + state = EXPECTING_DONE; + break; + case PACKET_READ_DELIM: + die("invalid packet"); + } + switch (state) { - case EXPECTING_PROTOCOL_VERSION: - if (process_protocol_version()) { - state = EXPECTING_FIRST_REF; - break; - } - state = EXPECTING_FIRST_REF; - /* fallthrough */ case EXPECTING_FIRST_REF: - process_capabilities(&len); - if (process_dummy_ref()) { + process_capabilities(reader->line, &len); + if (process_dummy_ref(reader->line)) { state = EXPECTING_SHALLOW; break; } state = EXPECTING_REF; /* fallthrough */ case EXPECTING_REF: - if (process_ref(len, &list, flags, extra_have)) + if (process_ref(reader->line, len, &list, flags, extra_have)) break; state = EXPECTING_SHALLOW; /* fallthrough */ case EXPECTING_SHALLOW: - if (process_shallow(len, shallow_points)) + if (process_shallow(reader->line, len, shallow_points)) break; - die("protocol error: unexpected '%s'", packet_buffer); - default: - die("unexpected state %d", state); + die("protocol error: unexpected '%s'", reader->line); + case EXPECTING_DONE: + break; } } @@ -279,6 +343,112 @@ struct ref **get_remote_heads(int in, char *src_buf, size_t src_len, return list; } +/* Returns 1 when a valid ref has been added to `list`, 0 otherwise */ +static int process_ref_v2(const char *line, struct ref ***list) +{ + int ret = 1; + int i = 0; + struct object_id old_oid; + struct ref *ref; + struct string_list line_sections = STRING_LIST_INIT_DUP; + const char *end; + + /* + * Ref lines have a number of fields which are space deliminated. The + * first field is the OID of the ref. The second field is the ref + * name. Subsequent fields (symref-target and peeled) are optional and + * don't have a particular order. + */ + if (string_list_split(&line_sections, line, ' ', -1) < 2) { + ret = 0; + goto out; + } + + if (parse_oid_hex(line_sections.items[i++].string, &old_oid, &end) || + *end) { + ret = 0; + goto out; + } + + ref = alloc_ref(line_sections.items[i++].string); + + oidcpy(&ref->old_oid, &old_oid); + **list = ref; + *list = &ref->next; + + for (; i < line_sections.nr; i++) { + const char *arg = line_sections.items[i].string; + if (skip_prefix(arg, "symref-target:", &arg)) + ref->symref = xstrdup(arg); + + if (skip_prefix(arg, "peeled:", &arg)) { + struct object_id peeled_oid; + char *peeled_name; + struct ref *peeled; + if (parse_oid_hex(arg, &peeled_oid, &end) || *end) { + ret = 0; + goto out; + } + + peeled_name = xstrfmt("%s^{}", ref->name); + peeled = alloc_ref(peeled_name); + + oidcpy(&peeled->old_oid, &peeled_oid); + **list = peeled; + *list = &peeled->next; + + free(peeled_name); + } + } + +out: + string_list_clear(&line_sections, 0); + return ret; +} + +struct ref **get_remote_refs(int fd_out, struct packet_reader *reader, + struct ref **list, int for_push, + const struct argv_array *ref_prefixes, + const struct string_list *server_options) +{ + int i; + *list = NULL; + + if (server_supports_v2("ls-refs", 1)) + packet_write_fmt(fd_out, "command=ls-refs\n"); + + if (server_supports_v2("agent", 0)) + packet_write_fmt(fd_out, "agent=%s", git_user_agent_sanitized()); + + if (server_options && server_options->nr && + server_supports_v2("server-option", 1)) + for (i = 0; i < server_options->nr; i++) + packet_write_fmt(fd_out, "server-option=%s", + server_options->items[i].string); + + packet_delim(fd_out); + /* When pushing we don't want to request the peeled tags */ + if (!for_push) + packet_write_fmt(fd_out, "peel\n"); + packet_write_fmt(fd_out, "symrefs\n"); + for (i = 0; ref_prefixes && i < ref_prefixes->argc; i++) { + packet_write_fmt(fd_out, "ref-prefix %s\n", + ref_prefixes->argv[i]); + } + packet_flush(fd_out); + + /* Process response from server */ + while (packet_reader_read(reader) == PACKET_READ_NORMAL) { + if (!process_ref_v2(reader->line, &list)) + die("invalid ls-refs response: %s", reader->line); + } + + if (reader->status != PACKET_READ_FLUSH) + die("expected flush after ref listing"); + + return list; +} + static const char *parse_feature_value(const char *feature_list, const char *feature, int *lenp) { int len; @@ -323,7 +493,7 @@ int parse_feature_request(const char *feature_list, const char *feature) const char *server_feature_value(const char *feature, int *len) { - return parse_feature_value(server_capabilities, feature, len); + return parse_feature_value(server_capabilities_v1, feature, len); } int server_supports(const char *feature) @@ -872,6 +1042,7 @@ static enum ssh_variant determine_ssh_variant(const char *ssh_command, */ static struct child_process *git_connect_git(int fd[2], char *hostandport, const char *path, const char *prog, + enum protocol_version version, int flags) { struct child_process *conn; @@ -910,10 +1081,10 @@ static struct child_process *git_connect_git(int fd[2], char *hostandport, target_host, 0); /* If using a new version put that stuff here after a second null byte */ - if (get_protocol_version_config() > 0) { + if (version > 0) { strbuf_addch(&request, '\0'); strbuf_addf(&request, "version=%d%c", - get_protocol_version_config(), '\0'); + version, '\0'); } packet_write(fd[1], request.buf, request.len); @@ -929,14 +1100,14 @@ static struct child_process *git_connect_git(int fd[2], char *hostandport, */ static void push_ssh_options(struct argv_array *args, struct argv_array *env, enum ssh_variant variant, const char *port, - int flags) + enum protocol_version version, int flags) { if (variant == VARIANT_SSH && - get_protocol_version_config() > 0) { + version > 0) { argv_array_push(args, "-o"); argv_array_push(args, "SendEnv=" GIT_PROTOCOL_ENVIRONMENT); argv_array_pushf(env, GIT_PROTOCOL_ENVIRONMENT "=version=%d", - get_protocol_version_config()); + version); } if (flags & CONNECT_IPV4) { @@ -989,7 +1160,8 @@ static void push_ssh_options(struct argv_array *args, struct argv_array *env, /* Prepare a child_process for use by Git's SSH-tunneled transport. */ static void fill_ssh_args(struct child_process *conn, const char *ssh_host, - const char *port, int flags) + const char *port, enum protocol_version version, + int flags) { const char *ssh; enum ssh_variant variant; @@ -1023,14 +1195,14 @@ static void fill_ssh_args(struct child_process *conn, const char *ssh_host, argv_array_push(&detect.args, ssh); argv_array_push(&detect.args, "-G"); push_ssh_options(&detect.args, &detect.env_array, - VARIANT_SSH, port, flags); + VARIANT_SSH, port, version, flags); argv_array_push(&detect.args, ssh_host); variant = run_command(&detect) ? VARIANT_SIMPLE : VARIANT_SSH; } argv_array_push(&conn->args, ssh); - push_ssh_options(&conn->args, &conn->env_array, variant, port, flags); + push_ssh_options(&conn->args, &conn->env_array, variant, port, version, flags); argv_array_push(&conn->args, ssh_host); } @@ -1051,6 +1223,15 @@ struct child_process *git_connect(int fd[2], const char *url, char *hostandport, *path; struct child_process *conn; enum protocol protocol; + enum protocol_version version = get_protocol_version_config(); + + /* + * NEEDSWORK: If we are trying to use protocol v2 and we are planning + * to perform a push, then fallback to v0 since the client doesn't know + * how to push yet using v2. + */ + if (version == protocol_v2 && !strcmp("git-receive-pack", prog)) + version = protocol_v0; /* Without this we cannot rely on waitpid() to tell * what happened to our children. @@ -1065,7 +1246,7 @@ struct child_process *git_connect(int fd[2], const char *url, printf("Diag: path=%s\n", path ? path : "NULL"); conn = NULL; } else if (protocol == PROTO_GIT) { - conn = git_connect_git(fd, hostandport, path, prog, flags); + conn = git_connect_git(fd, hostandport, path, prog, version, flags); } else { struct strbuf cmd = STRBUF_INIT; const char *const *var; @@ -1108,12 +1289,12 @@ struct child_process *git_connect(int fd[2], const char *url, strbuf_release(&cmd); return NULL; } - fill_ssh_args(conn, ssh_host, port, flags); + fill_ssh_args(conn, ssh_host, port, version, flags); } else { transport_check_allowed("file"); - if (get_protocol_version_config() > 0) { + if (version > 0) { argv_array_pushf(&conn->env_array, GIT_PROTOCOL_ENVIRONMENT "=version=%d", - get_protocol_version_config()); + version); } } argv_array_push(&conn->args, cmd.buf); @@ -13,4 +13,11 @@ extern int parse_feature_request(const char *features, const char *feature); extern const char *server_feature_value(const char *feature, int *len_ret); extern int url_is_local_not_ssh(const char *url); +struct packet_reader; +extern enum protocol_version discover_version(struct packet_reader *reader); + +extern int server_supports_v2(const char *c, int die_on_error); +extern int server_supports_feature(const char *c, const char *feature, + int die_on_error); + #endif diff --git a/contrib/coccinelle/commit.cocci b/contrib/coccinelle/commit.cocci new file mode 100644 index 0000000000..a7e9215ffc --- /dev/null +++ b/contrib/coccinelle/commit.cocci @@ -0,0 +1,28 @@ +@@ +expression c; +@@ +- &c->maybe_tree->object.oid ++ get_commit_tree_oid(c) + +@@ +expression c; +@@ +- c->maybe_tree->object.oid.hash ++ get_commit_tree_oid(c)->hash + +// These excluded functions must access c->maybe_tree direcly. +@@ +identifier f !~ "^(get_commit_tree|get_commit_tree_in_graph|load_tree_for_commit)$"; +expression c; +@@ + f(...) {... +- c->maybe_tree ++ get_commit_tree(c) + ...} + +@@ +expression c; +expression s; +@@ +- get_commit_tree(c) = s ++ c->maybe_tree = s diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash index 01dd9ff07a..961a0ed76f 100644 --- a/contrib/completion/git-completion.bash +++ b/contrib/completion/git-completion.bash @@ -284,7 +284,11 @@ __gitcomp () # Clear the variables caching builtins' options when (re-)sourcing # the completion script. -unset $(set |sed -ne 's/^\(__gitcomp_builtin_[a-zA-Z0-9_][a-zA-Z0-9_]*\)=.*/\1/p') 2>/dev/null +if [[ -n ${ZSH_VERSION-} ]]; then + unset $(set |sed -ne 's/^\(__gitcomp_builtin_[a-zA-Z0-9_][a-zA-Z0-9_]*\)=.*/\1/p') 2>/dev/null +else + unset $(compgen -v __gitcomp_builtin_) +fi # This function is equivalent to # @@ -875,6 +879,7 @@ __git_list_porcelain_commands () check-ref-format) : plumbing;; checkout-index) : plumbing;; column) : internal helper;; + commit-graph) : plumbing;; commit-tree) : plumbing;; count-objects) : infrequent;; credential) : credentials;; @@ -1944,7 +1949,7 @@ _git_rebase () --*) __gitcomp " --onto --merge --strategy --interactive - --preserve-merges --stat --no-stat + --rebase-merges --preserve-merges --stat --no-stat --committer-date-is-author-date --ignore-date --ignore-whitespace --whitespace= --autosquash --no-autosquash @@ -2115,7 +2120,7 @@ _git_config () return ;; branch.*.rebase) - __gitcomp "false true preserve interactive" + __gitcomp "false true merges preserve interactive" return ;; remote.pushdefault) @@ -2172,7 +2177,7 @@ _git_config () __gitcomp "$__git_log_date_formats" return ;; - sendemail.aliasesfiletype) + sendemail.aliasfiletype) __gitcomp "mutt mailrc pine elm gnus" return ;; @@ -2345,6 +2350,7 @@ _git_config () core.bigFileThreshold core.checkStat core.commentChar + core.commitGraph core.compression core.createObject core.deltaBaseCacheLimit @@ -2769,13 +2775,21 @@ _git_show_branch () _git_stash () { local save_opts='--all --keep-index --no-keep-index --quiet --patch --include-untracked' - local subcommands='push save list show apply clear drop pop create branch' - local subcommand="$(__git_find_on_cmdline "$subcommands")" + local subcommands='push list show apply clear drop pop create branch' + local subcommand="$(__git_find_on_cmdline "$subcommands save")" + if [ -n "$(__git_find_on_cmdline "-p")" ]; then + subcommand="push" + fi if [ -z "$subcommand" ]; then case "$cur" in --*) __gitcomp "$save_opts" ;; + sa*) + if [ -z "$(__git_find_on_cmdline "$save_opts")" ]; then + __gitcomp "save" + fi + ;; *) if [ -z "$(__git_find_on_cmdline "$save_opts")" ]; then __gitcomp "$subcommands" @@ -3059,10 +3073,17 @@ __git_support_parseopt_helper () { __git_complete_command () { local command="$1" local completion_func="_git_${command//-/_}" - if declare -f $completion_func >/dev/null 2>/dev/null; then + if ! declare -f $completion_func >/dev/null 2>/dev/null && + declare -f _completion_loader >/dev/null 2>/dev/null + then + _completion_loader "git-$command" + fi + if declare -f $completion_func >/dev/null 2>/dev/null + then $completion_func return 0 - elif __git_support_parseopt_helper "$command"; then + elif __git_support_parseopt_helper "$command" + then __git_complete_common "$command" return 0 else diff --git a/contrib/convert-grafts-to-replace-refs.sh b/contrib/convert-grafts-to-replace-refs.sh deleted file mode 100755 index 0cbc917b8c..0000000000 --- a/contrib/convert-grafts-to-replace-refs.sh +++ /dev/null @@ -1,28 +0,0 @@ -#!/bin/sh - -# You should execute this script in the repository where you -# want to convert grafts to replace refs. - -GRAFTS_FILE="${GIT_DIR:-.git}/info/grafts" - -. $(git --exec-path)/git-sh-setup - -test -f "$GRAFTS_FILE" || die "Could not find graft file: '$GRAFTS_FILE'" - -grep '^[^# ]' "$GRAFTS_FILE" | -while read definition -do - if test -n "$definition" - then - echo "Converting: $definition" - git replace --graft $definition || - die "Conversion failed for: $definition" - fi -done - -mv "$GRAFTS_FILE" "$GRAFTS_FILE.bak" || - die "Could not rename '$GRAFTS_FILE' to '$GRAFTS_FILE.bak'" - -echo "Success!" -echo "All the grafts in '$GRAFTS_FILE' have been converted to replace refs!" -echo "The grafts file '$GRAFTS_FILE' has been renamed: '$GRAFTS_FILE.bak'" diff --git a/contrib/emacs/.gitignore b/contrib/emacs/.gitignore deleted file mode 100644 index c531d9867f..0000000000 --- a/contrib/emacs/.gitignore +++ /dev/null @@ -1 +0,0 @@ -*.elc diff --git a/contrib/emacs/Makefile b/contrib/emacs/Makefile deleted file mode 100644 index 24d9312941..0000000000 --- a/contrib/emacs/Makefile +++ /dev/null @@ -1,21 +0,0 @@ -## Build and install stuff - -EMACS = emacs - -ELC = git.elc git-blame.elc -INSTALL ?= install -INSTALL_ELC = $(INSTALL) -m 644 -prefix ?= $(HOME) -emacsdir = $(prefix)/share/emacs/site-lisp -RM ?= rm -f - -all: $(ELC) - -install: all - $(INSTALL) -d $(DESTDIR)$(emacsdir) - $(INSTALL_ELC) $(ELC:.elc=.el) $(ELC) $(DESTDIR)$(emacsdir) - -%.elc: %.el - $(EMACS) -batch -f batch-byte-compile $< - -clean:; $(RM) $(ELC) diff --git a/contrib/emacs/README b/contrib/emacs/README index 82368bdbff..977a16f1e3 100644 --- a/contrib/emacs/README +++ b/contrib/emacs/README @@ -1,30 +1,24 @@ -This directory contains various modules for Emacs support. +This directory used to contain various modules for Emacs support. -To make the modules available to Emacs, you should add this directory -to your load-path, and then require the modules you want. This can be -done by adding to your .emacs something like this: +These were added shortly after Git was first released. Since then +Emacs's own support for Git got better than what was offered by these +modes. There are also popular 3rd-party Git modes such as Magit which +offer replacements for these. - (add-to-list 'load-path ".../git/contrib/emacs") - (require 'git) - (require 'git-blame) - - -The following modules are available: +The following modules were available, and can be dug up from the Git +history: * git.el: - Status manager that displays the state of all the files of the - project, and provides easy access to the most frequently used git - commands. The user interface is as far as possible compatible with - the pcl-cvs mode. It can be started with `M-x git-status'. + Wrapper for "git status" that provided access to other git commands. + + Modern alternatives to this include Magit, and VC mode that ships + with Emacs. * git-blame.el: - Emacs implementation of incremental git-blame. When you turn it on - while viewing a file, the editor buffer will be updated by setting - the background of individual lines to a color that reflects which - commit it comes from. And when you move around the buffer, a - one-line summary will be shown in the echo area. + A wrapper for "git blame" written before Emacs's own vc-annotate + mode learned to invoke git-blame, which can be done via C-x v g. * vc-git.el: diff --git a/contrib/emacs/git-blame.el b/contrib/emacs/git-blame.el index 510e0f7103..6a8a2b8ff1 100644 --- a/contrib/emacs/git-blame.el +++ b/contrib/emacs/git-blame.el @@ -1,483 +1,6 @@ -;;; git-blame.el --- Minor mode for incremental blame for Git -*- coding: utf-8 -*- -;; -;; Copyright (C) 2007 David KÃ¥gedal -;; -;; Authors: David KÃ¥gedal <davidk@lysator.liu.se> -;; Created: 31 Jan 2007 -;; Message-ID: <87iren2vqx.fsf@morpheus.local> -;; License: GPL -;; Keywords: git, version control, release management -;; -;; Compatibility: Emacs21, Emacs22 and EmacsCVS -;; Git 1.5 and up - -;; This file is *NOT* part of GNU Emacs. -;; This file is distributed under the same terms as GNU Emacs. - -;; This program is free software; you can redistribute it and/or -;; modify it under the terms of the GNU General Public License as -;; published by the Free Software Foundation; either version 2 of -;; the License, or (at your option) any later version. - -;; This program is distributed in the hope that it will be -;; useful, but WITHOUT ANY WARRANTY; without even the implied -;; warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR -;; PURPOSE. See the GNU General Public License for more details. - -;; You should have received a copy of the GNU General Public -;; License along with this program; if not, see -;; <http://www.gnu.org/licenses/>. - -;; http://www.fsf.org/copyleft/gpl.html - - -;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; -;; -;;; Commentary: -;; -;; Here is an Emacs implementation of incremental git-blame. When you -;; turn it on while viewing a file, the editor buffer will be updated by -;; setting the background of individual lines to a color that reflects -;; which commit it comes from. And when you move around the buffer, a -;; one-line summary will be shown in the echo area. - -;;; Installation: -;; -;; To use this package, put it somewhere in `load-path' (or add -;; directory with git-blame.el to `load-path'), and add the following -;; line to your .emacs: -;; -;; (require 'git-blame) -;; -;; If you do not want to load this package before it is necessary, you -;; can make use of the `autoload' feature, e.g. by adding to your .emacs -;; the following lines -;; -;; (autoload 'git-blame-mode "git-blame" -;; "Minor mode for incremental blame for Git." t) -;; -;; Then first use of `M-x git-blame-mode' would load the package. - -;;; Compatibility: -;; -;; It requires GNU Emacs 21 or later and Git 1.5.0 and up -;; -;; If you'are using Emacs 20, try changing this: -;; -;; (overlay-put ovl 'face (list :background -;; (cdr (assq 'color (cddddr info))))) -;; -;; to -;; -;; (overlay-put ovl 'face (cons 'background-color -;; (cdr (assq 'color (cddddr info))))) - - -;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; -;; -;;; Code: - -(eval-when-compile (require 'cl)) ; to use `push', `pop' -(require 'format-spec) - -(defface git-blame-prefix-face - '((((background dark)) (:foreground "gray" - :background "black")) - (((background light)) (:foreground "gray" - :background "white")) - (t (:weight bold))) - "The face used for the hash prefix." - :group 'git-blame) - -(defgroup git-blame nil - "A minor mode showing Git blame information." - :group 'git - :link '(function-link git-blame-mode)) - - -(defcustom git-blame-use-colors t - "Use colors to indicate commits in `git-blame-mode'." - :type 'boolean - :group 'git-blame) - -(defcustom git-blame-prefix-format - "%h %20A:" - "The format of the prefix added to each line in `git-blame' -mode. The format is passed to `format-spec' with the following format keys: - - %h - the abbreviated hash - %H - the full hash - %a - the author name - %A - the author email - %c - the committer name - %C - the committer email - %s - the commit summary -" - :group 'git-blame) - -(defcustom git-blame-mouseover-format - "%h %a %A: %s" - "The format of the description shown when pointing at a line in -`git-blame' mode. The format string is passed to `format-spec' -with the following format keys: - - %h - the abbreviated hash - %H - the full hash - %a - the author name - %A - the author email - %c - the committer name - %C - the committer email - %s - the commit summary -" - :group 'git-blame) - - -(defun git-blame-color-scale (&rest elements) - "Given a list, returns a list of triples formed with each -elements of the list. - -a b => bbb bba bab baa abb aba aaa aab" - (let (result) - (dolist (a elements) - (dolist (b elements) - (dolist (c elements) - (setq result (cons (format "#%s%s%s" a b c) result))))) - result)) - -;; (git-blame-color-scale "0c" "04" "24" "1c" "2c" "34" "14" "3c") => -;; ("#3c3c3c" "#3c3c14" "#3c3c34" "#3c3c2c" "#3c3c1c" "#3c3c24" -;; "#3c3c04" "#3c3c0c" "#3c143c" "#3c1414" "#3c1434" "#3c142c" ...) - -(defmacro git-blame-random-pop (l) - "Select a random element from L and returns it. Also remove -selected element from l." - ;; only works on lists with unique elements - `(let ((e (elt ,l (random (length ,l))))) - (setq ,l (remove e ,l)) - e)) - -(defvar git-blame-log-oneline-format - "format:[%cr] %cn: %s" - "*Formatting option used for describing current line in the minibuffer. - -This option is used to pass to git log --pretty= command-line option, -and describe which commit the current line was made.") - -(defvar git-blame-dark-colors - (git-blame-color-scale "0c" "04" "24" "1c" "2c" "34" "14" "3c") - "*List of colors (format #RGB) to use in a dark environment. - -To check out the list, evaluate (list-colors-display git-blame-dark-colors).") - -(defvar git-blame-light-colors - (git-blame-color-scale "c4" "d4" "cc" "dc" "f4" "e4" "fc" "ec") - "*List of colors (format #RGB) to use in a light environment. - -To check out the list, evaluate (list-colors-display git-blame-light-colors).") - -(defvar git-blame-colors '() - "Colors used by git-blame. The list is built once when activating git-blame -minor mode.") - -(defvar git-blame-ancient-color "dark green" - "*Color to be used for ancient commit.") - -(defvar git-blame-autoupdate t - "*Automatically update the blame display while editing") - -(defvar git-blame-proc nil - "The running git-blame process") -(make-variable-buffer-local 'git-blame-proc) - -(defvar git-blame-overlays nil - "The git-blame overlays used in the current buffer.") -(make-variable-buffer-local 'git-blame-overlays) - -(defvar git-blame-cache nil - "A cache of git-blame information for the current buffer") -(make-variable-buffer-local 'git-blame-cache) - -(defvar git-blame-idle-timer nil - "An idle timer that updates the blame") -(make-variable-buffer-local 'git-blame-cache) - -(defvar git-blame-update-queue nil - "A queue of update requests") -(make-variable-buffer-local 'git-blame-update-queue) - -;; FIXME: docstrings -(defvar git-blame-file nil) -(defvar git-blame-current nil) - -(defvar git-blame-mode nil) -(make-variable-buffer-local 'git-blame-mode) - -(defvar git-blame-mode-line-string " blame" - "String to display on the mode line when git-blame is active.") - -(or (assq 'git-blame-mode minor-mode-alist) - (setq minor-mode-alist - (cons '(git-blame-mode git-blame-mode-line-string) minor-mode-alist))) - -;;;###autoload -(defun git-blame-mode (&optional arg) - "Toggle minor mode for displaying Git blame - -With prefix ARG, turn the mode on if ARG is positive." - (interactive "P") - (cond - ((null arg) - (if git-blame-mode (git-blame-mode-off) (git-blame-mode-on))) - ((> (prefix-numeric-value arg) 0) (git-blame-mode-on)) - (t (git-blame-mode-off)))) - -(defun git-blame-mode-on () - "Turn on git-blame mode. - -See also function `git-blame-mode'." - (make-local-variable 'git-blame-colors) - (if git-blame-autoupdate - (add-hook 'after-change-functions 'git-blame-after-change nil t) - (remove-hook 'after-change-functions 'git-blame-after-change t)) - (git-blame-cleanup) - (let ((bgmode (cdr (assoc 'background-mode (frame-parameters))))) - (if (eq bgmode 'dark) - (setq git-blame-colors git-blame-dark-colors) - (setq git-blame-colors git-blame-light-colors))) - (setq git-blame-cache (make-hash-table :test 'equal)) - (setq git-blame-mode t) - (git-blame-run)) - -(defun git-blame-mode-off () - "Turn off git-blame mode. - -See also function `git-blame-mode'." - (git-blame-cleanup) - (if git-blame-idle-timer (cancel-timer git-blame-idle-timer)) - (setq git-blame-mode nil)) - -;;;###autoload -(defun git-reblame () - "Recalculate all blame information in the current buffer" - (interactive) - (unless git-blame-mode - (error "Git-blame is not active")) - - (git-blame-cleanup) - (git-blame-run)) - -(defun git-blame-run (&optional startline endline) - (if git-blame-proc - ;; Should maybe queue up a new run here - (message "Already running git blame") - (let ((display-buf (current-buffer)) - (blame-buf (get-buffer-create - (concat " git blame for " (buffer-name)))) - (args '("--incremental" "--contents" "-"))) - (if startline - (setq args (append args - (list "-L" (format "%d,%d" startline endline))))) - (setq args (append args - (list (file-name-nondirectory buffer-file-name)))) - (setq git-blame-proc - (apply 'start-process - "git-blame" blame-buf - "git" "blame" - args)) - (with-current-buffer blame-buf - (erase-buffer) - (make-local-variable 'git-blame-file) - (make-local-variable 'git-blame-current) - (setq git-blame-file display-buf) - (setq git-blame-current nil)) - (set-process-filter git-blame-proc 'git-blame-filter) - (set-process-sentinel git-blame-proc 'git-blame-sentinel) - (process-send-region git-blame-proc (point-min) (point-max)) - (process-send-eof git-blame-proc)))) - -(defun remove-git-blame-text-properties (start end) - (let ((modified (buffer-modified-p)) - (inhibit-read-only t)) - (remove-text-properties start end '(point-entered nil)) - (set-buffer-modified-p modified))) - -(defun git-blame-cleanup () - "Remove all blame properties" - (mapc 'delete-overlay git-blame-overlays) - (setq git-blame-overlays nil) - (remove-git-blame-text-properties (point-min) (point-max))) - -(defun git-blame-update-region (start end) - "Rerun blame to get updates between START and END" - (let ((overlays (overlays-in start end))) - (while overlays - (let ((overlay (pop overlays))) - (if (< (overlay-start overlay) start) - (setq start (overlay-start overlay))) - (if (> (overlay-end overlay) end) - (setq end (overlay-end overlay))) - (setq git-blame-overlays (delete overlay git-blame-overlays)) - (delete-overlay overlay)))) - (remove-git-blame-text-properties start end) - ;; We can be sure that start and end are at line breaks - (git-blame-run (1+ (count-lines (point-min) start)) - (count-lines (point-min) end))) - -(defun git-blame-sentinel (proc status) - (with-current-buffer (process-buffer proc) - (with-current-buffer git-blame-file - (setq git-blame-proc nil) - (if git-blame-update-queue - (git-blame-delayed-update)))) - ;;(kill-buffer (process-buffer proc)) - ;;(message "git blame finished") - ) - -(defvar in-blame-filter nil) - -(defun git-blame-filter (proc str) - (with-current-buffer (process-buffer proc) - (save-excursion - (goto-char (process-mark proc)) - (insert-before-markers str) - (goto-char (point-min)) - (unless in-blame-filter - (let ((more t) - (in-blame-filter t)) - (while more - (setq more (git-blame-parse)))))))) - -(defun git-blame-parse () - (cond ((looking-at "\\([0-9a-f]\\{40\\}\\) \\([0-9]+\\) \\([0-9]+\\) \\([0-9]+\\)\n") - (let ((hash (match-string 1)) - (src-line (string-to-number (match-string 2))) - (res-line (string-to-number (match-string 3))) - (num-lines (string-to-number (match-string 4)))) - (delete-region (point) (match-end 0)) - (setq git-blame-current (list (git-blame-new-commit hash) - src-line res-line num-lines))) - t) - ((looking-at "\\([a-z-]+\\) \\(.+\\)\n") - (let ((key (match-string 1)) - (value (match-string 2))) - (delete-region (point) (match-end 0)) - (git-blame-add-info (car git-blame-current) key value) - (when (string= key "filename") - (git-blame-create-overlay (car git-blame-current) - (caddr git-blame-current) - (cadddr git-blame-current)) - (setq git-blame-current nil))) - t) - (t - nil))) - -(defun git-blame-new-commit (hash) - (with-current-buffer git-blame-file - (or (gethash hash git-blame-cache) - ;; Assign a random color to each new commit info - ;; Take care not to select the same color multiple times - (let* ((color (if git-blame-colors - (git-blame-random-pop git-blame-colors) - git-blame-ancient-color)) - (info `(,hash (color . ,color)))) - (puthash hash info git-blame-cache) - info)))) - -(defun git-blame-create-overlay (info start-line num-lines) - (with-current-buffer git-blame-file - (save-excursion - (let ((inhibit-point-motion-hooks t) - (inhibit-modification-hooks t)) - (goto-char (point-min)) - (forward-line (1- start-line)) - (let* ((start (point)) - (end (progn (forward-line num-lines) (point))) - (ovl (make-overlay start end)) - (hash (car info)) - (spec `((?h . ,(substring hash 0 6)) - (?H . ,hash) - (?a . ,(git-blame-get-info info 'author)) - (?A . ,(git-blame-get-info info 'author-mail)) - (?c . ,(git-blame-get-info info 'committer)) - (?C . ,(git-blame-get-info info 'committer-mail)) - (?s . ,(git-blame-get-info info 'summary))))) - (push ovl git-blame-overlays) - (overlay-put ovl 'git-blame info) - (overlay-put ovl 'help-echo - (format-spec git-blame-mouseover-format spec)) - (if git-blame-use-colors - (overlay-put ovl 'face (list :background - (cdr (assq 'color (cdr info)))))) - (overlay-put ovl 'line-prefix - (propertize (format-spec git-blame-prefix-format spec) - 'face 'git-blame-prefix-face))))))) - -(defun git-blame-add-info (info key value) - (nconc info (list (cons (intern key) value)))) - -(defun git-blame-get-info (info key) - (cdr (assq key (cdr info)))) - -(defun git-blame-current-commit () - (let ((info (get-char-property (point) 'git-blame))) - (if info - (car info) - (error "No commit info")))) - -(defun git-describe-commit (hash) - (with-temp-buffer - (call-process "git" nil t nil - "log" "-1" - (concat "--pretty=" git-blame-log-oneline-format) - hash) - (buffer-substring (point-min) (point-max)))) - -(defvar git-blame-last-identification nil) -(make-variable-buffer-local 'git-blame-last-identification) -(defun git-blame-identify (&optional hash) - (interactive) - (let ((info (gethash (or hash (git-blame-current-commit)) git-blame-cache))) - (when (and info (not (eq info git-blame-last-identification))) - (message "%s" (nth 4 info)) - (setq git-blame-last-identification info)))) - -;; (defun git-blame-after-save () -;; (when git-blame-mode -;; (git-blame-cleanup) -;; (git-blame-run))) -;; (add-hook 'after-save-hook 'git-blame-after-save) - -(defun git-blame-after-change (start end length) - (when git-blame-mode - (git-blame-enq-update start end))) - -(defvar git-blame-last-update nil) -(make-variable-buffer-local 'git-blame-last-update) -(defun git-blame-enq-update (start end) - "Mark the region between START and END as needing blame update" - ;; Try to be smart and avoid multiple callouts for sequential - ;; editing - (cond ((and git-blame-last-update - (= start (cdr git-blame-last-update))) - (setcdr git-blame-last-update end)) - ((and git-blame-last-update - (= end (car git-blame-last-update))) - (setcar git-blame-last-update start)) - (t - (setq git-blame-last-update (cons start end)) - (setq git-blame-update-queue (nconc git-blame-update-queue - (list git-blame-last-update))))) - (unless (or git-blame-proc git-blame-idle-timer) - (setq git-blame-idle-timer - (run-with-idle-timer 0.5 nil 'git-blame-delayed-update)))) - -(defun git-blame-delayed-update () - (setq git-blame-idle-timer nil) - (if git-blame-update-queue - (let ((first (pop git-blame-update-queue)) - (inhibit-point-motion-hooks t)) - (git-blame-update-region (car first) (cdr first))))) - -(provide 'git-blame) - -;;; git-blame.el ends here +(error "git-blame.el no longer ships with git. It's recommended +to replace its use with Emacs's own vc-annotate. See +contrib/emacs/README in git's +sources (https://github.com/git/git/blob/master/contrib/emacs/README) +for more info on suggested alternatives and for why this +happened.") diff --git a/contrib/emacs/git.el b/contrib/emacs/git.el index 97919f2d73..03f926281f 100644 --- a/contrib/emacs/git.el +++ b/contrib/emacs/git.el @@ -1,1704 +1,6 @@ -;;; git.el --- A user interface for git - -;; Copyright (C) 2005, 2006, 2007, 2008, 2009 Alexandre Julliard <julliard@winehq.org> - -;; Version: 1.0 - -;; This program is free software; you can redistribute it and/or -;; modify it under the terms of the GNU General Public License as -;; published by the Free Software Foundation; either version 2 of -;; the License, or (at your option) any later version. -;; -;; This program is distributed in the hope that it will be -;; useful, but WITHOUT ANY WARRANTY; without even the implied -;; warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR -;; PURPOSE. See the GNU General Public License for more details. -;; -;; You should have received a copy of the GNU General Public -;; License along with this program; if not, see -;; <http://www.gnu.org/licenses/>. - -;;; Commentary: - -;; This file contains an interface for the git version control -;; system. It provides easy access to the most frequently used git -;; commands. The user interface is as far as possible identical to -;; that of the PCL-CVS mode. -;; -;; To install: put this file on the load-path and place the following -;; in your .emacs file: -;; -;; (require 'git) -;; -;; To start: `M-x git-status' -;; -;; TODO -;; - diff against other branch -;; - renaming files from the status buffer -;; - creating tags -;; - fetch/pull -;; - revlist browser -;; - git-show-branch browser -;; - -;;; Compatibility: -;; -;; This file works on GNU Emacs 21 or later. It may work on older -;; versions but this is not guaranteed. -;; -;; It may work on XEmacs 21, provided that you first install the ewoc -;; and log-edit packages. -;; - -(eval-when-compile (require 'cl)) -(require 'ewoc) -(require 'log-edit) -(require 'easymenu) - - -;;;; Customizations -;;;; ------------------------------------------------------------ - -(defgroup git nil - "A user interface for the git versioning system." - :group 'tools) - -(defcustom git-committer-name nil - "User name to use for commits. -The default is to fall back to the repository config, -then to `add-log-full-name' and then to `user-full-name'." - :group 'git - :type '(choice (const :tag "Default" nil) - (string :tag "Name"))) - -(defcustom git-committer-email nil - "Email address to use for commits. -The default is to fall back to the git repository config, -then to `add-log-mailing-address' and then to `user-mail-address'." - :group 'git - :type '(choice (const :tag "Default" nil) - (string :tag "Email"))) - -(defcustom git-commits-coding-system nil - "Default coding system for the log message of git commits." - :group 'git - :type '(choice (const :tag "From repository config" nil) - (coding-system))) - -(defcustom git-append-signed-off-by nil - "Whether to append a Signed-off-by line to the commit message before editing." - :group 'git - :type 'boolean) - -(defcustom git-reuse-status-buffer t - "Whether `git-status' should try to reuse an existing buffer -if there is already one that displays the same directory." - :group 'git - :type 'boolean) - -(defcustom git-per-dir-ignore-file ".gitignore" - "Name of the per-directory ignore file." - :group 'git - :type 'string) - -(defcustom git-show-uptodate nil - "Whether to display up-to-date files." - :group 'git - :type 'boolean) - -(defcustom git-show-ignored nil - "Whether to display ignored files." - :group 'git - :type 'boolean) - -(defcustom git-show-unknown t - "Whether to display unknown files." - :group 'git - :type 'boolean) - - -(defface git-status-face - '((((class color) (background light)) (:foreground "purple")) - (((class color) (background dark)) (:foreground "salmon"))) - "Git mode face used to highlight added and modified files." - :group 'git) - -(defface git-unmerged-face - '((((class color) (background light)) (:foreground "red" :bold t)) - (((class color) (background dark)) (:foreground "red" :bold t))) - "Git mode face used to highlight unmerged files." - :group 'git) - -(defface git-unknown-face - '((((class color) (background light)) (:foreground "goldenrod" :bold t)) - (((class color) (background dark)) (:foreground "goldenrod" :bold t))) - "Git mode face used to highlight unknown files." - :group 'git) - -(defface git-uptodate-face - '((((class color) (background light)) (:foreground "grey60")) - (((class color) (background dark)) (:foreground "grey40"))) - "Git mode face used to highlight up-to-date files." - :group 'git) - -(defface git-ignored-face - '((((class color) (background light)) (:foreground "grey60")) - (((class color) (background dark)) (:foreground "grey40"))) - "Git mode face used to highlight ignored files." - :group 'git) - -(defface git-mark-face - '((((class color) (background light)) (:foreground "red" :bold t)) - (((class color) (background dark)) (:foreground "tomato" :bold t))) - "Git mode face used for the file marks." - :group 'git) - -(defface git-header-face - '((((class color) (background light)) (:foreground "blue")) - (((class color) (background dark)) (:foreground "blue"))) - "Git mode face used for commit headers." - :group 'git) - -(defface git-separator-face - '((((class color) (background light)) (:foreground "brown")) - (((class color) (background dark)) (:foreground "brown"))) - "Git mode face used for commit separator." - :group 'git) - -(defface git-permission-face - '((((class color) (background light)) (:foreground "green" :bold t)) - (((class color) (background dark)) (:foreground "green" :bold t))) - "Git mode face used for permission changes." - :group 'git) - - -;;;; Utilities -;;;; ------------------------------------------------------------ - -(defconst git-log-msg-separator "--- log message follows this line ---") - -(defvar git-log-edit-font-lock-keywords - `(("^\\(Author:\\|Date:\\|Merge:\\|Signed-off-by:\\)\\(.*\\)$" - (1 font-lock-keyword-face) - (2 font-lock-function-name-face)) - (,(concat "^\\(" (regexp-quote git-log-msg-separator) "\\)$") - (1 font-lock-comment-face)))) - -(defun git-get-env-strings (env) - "Build a list of NAME=VALUE strings from a list of environment strings." - (mapcar (lambda (entry) (concat (car entry) "=" (cdr entry))) env)) - -(defun git-call-process (buffer &rest args) - "Wrapper for call-process that sets environment strings." - (apply #'call-process "git" nil buffer nil args)) - -(defun git-call-process-display-error (&rest args) - "Wrapper for call-process that displays error messages." - (let* ((dir default-directory) - (buffer (get-buffer-create "*Git Command Output*")) - (ok (with-current-buffer buffer - (let ((default-directory dir) - (buffer-read-only nil)) - (erase-buffer) - (eq 0 (apply #'git-call-process (list buffer t) args)))))) - (unless ok (display-message-or-buffer buffer)) - ok)) - -(defun git-call-process-string (&rest args) - "Wrapper for call-process that returns the process output as a string, -or nil if the git command failed." - (with-temp-buffer - (and (eq 0 (apply #'git-call-process t args)) - (buffer-string)))) - -(defun git-call-process-string-display-error (&rest args) - "Wrapper for call-process that displays error message and returns -the process output as a string, or nil if the git command failed." - (with-temp-buffer - (if (eq 0 (apply #'git-call-process (list t t) args)) - (buffer-string) - (display-message-or-buffer (current-buffer)) - nil))) - -(defun git-run-process-region (buffer start end program args) - "Run a git process with a buffer region as input." - (let ((output-buffer (current-buffer)) - (dir default-directory)) - (with-current-buffer buffer - (cd dir) - (apply #'call-process-region start end program - nil (list output-buffer t) nil args)))) - -(defun git-run-command-buffer (buffer-name &rest args) - "Run a git command, sending the output to a buffer named BUFFER-NAME." - (let ((dir default-directory) - (buffer (get-buffer-create buffer-name))) - (message "Running git %s..." (car args)) - (with-current-buffer buffer - (let ((default-directory dir) - (buffer-read-only nil)) - (erase-buffer) - (apply #'git-call-process buffer args))) - (message "Running git %s...done" (car args)) - buffer)) - -(defun git-run-command-region (buffer start end env &rest args) - "Run a git command with specified buffer region as input." - (with-temp-buffer - (if (eq 0 (if env - (git-run-process-region - buffer start end "env" - (append (git-get-env-strings env) (list "git") args)) - (git-run-process-region buffer start end "git" args))) - (buffer-string) - (display-message-or-buffer (current-buffer)) - nil))) - -(defun git-run-hook (hook env &rest args) - "Run a git hook and display its output if any." - (let ((dir default-directory) - (hook-name (expand-file-name (concat ".git/hooks/" hook)))) - (or (not (file-executable-p hook-name)) - (let (status (buffer (get-buffer-create "*Git Hook Output*"))) - (with-current-buffer buffer - (erase-buffer) - (cd dir) - (setq status - (if env - (apply #'call-process "env" nil (list buffer t) nil - (append (git-get-env-strings env) (list hook-name) args)) - (apply #'call-process hook-name nil (list buffer t) nil args)))) - (display-message-or-buffer buffer) - (eq 0 status))))) - -(defun git-get-string-sha1 (string) - "Read a SHA1 from the specified string." - (and string - (string-match "[0-9a-f]\\{40\\}" string) - (match-string 0 string))) - -(defun git-get-committer-name () - "Return the name to use as GIT_COMMITTER_NAME." - ; copied from log-edit - (or git-committer-name - (git-config "user.name") - (and (boundp 'add-log-full-name) add-log-full-name) - (and (fboundp 'user-full-name) (user-full-name)) - (and (boundp 'user-full-name) user-full-name))) - -(defun git-get-committer-email () - "Return the email address to use as GIT_COMMITTER_EMAIL." - ; copied from log-edit - (or git-committer-email - (git-config "user.email") - (and (boundp 'add-log-mailing-address) add-log-mailing-address) - (and (fboundp 'user-mail-address) (user-mail-address)) - (and (boundp 'user-mail-address) user-mail-address))) - -(defun git-get-commits-coding-system () - "Return the coding system to use for commits." - (let ((repo-config (git-config "i18n.commitencoding"))) - (or git-commits-coding-system - (and repo-config - (fboundp 'locale-charset-to-coding-system) - (locale-charset-to-coding-system repo-config)) - 'utf-8))) - -(defun git-get-logoutput-coding-system () - "Return the coding system used for git-log output." - (let ((repo-config (or (git-config "i18n.logoutputencoding") - (git-config "i18n.commitencoding")))) - (or git-commits-coding-system - (and repo-config - (fboundp 'locale-charset-to-coding-system) - (locale-charset-to-coding-system repo-config)) - 'utf-8))) - -(defun git-escape-file-name (name) - "Escape a file name if necessary." - (if (string-match "[\n\t\"\\]" name) - (concat "\"" - (mapconcat (lambda (c) - (case c - (?\n "\\n") - (?\t "\\t") - (?\\ "\\\\") - (?\" "\\\"") - (t (char-to-string c)))) - name "") - "\"") - name)) - -(defun git-success-message (text files) - "Print a success message after having handled FILES." - (let ((n (length files))) - (if (equal n 1) - (message "%s %s" text (car files)) - (message "%s %d files" text n)))) - -(defun git-get-top-dir (dir) - "Retrieve the top-level directory of a git tree." - (let ((cdup (with-output-to-string - (with-current-buffer standard-output - (cd dir) - (unless (eq 0 (git-call-process t "rev-parse" "--show-cdup")) - (error "cannot find top-level git tree for %s." dir)))))) - (expand-file-name (concat (file-name-as-directory dir) - (car (split-string cdup "\n")))))) - -;stolen from pcl-cvs -(defun git-append-to-ignore (file) - "Add a file name to the ignore file in its directory." - (let* ((fullname (expand-file-name file)) - (dir (file-name-directory fullname)) - (name (file-name-nondirectory fullname)) - (ignore-name (expand-file-name git-per-dir-ignore-file dir)) - (created (not (file-exists-p ignore-name)))) - (save-window-excursion - (set-buffer (find-file-noselect ignore-name)) - (goto-char (point-max)) - (unless (zerop (current-column)) (insert "\n")) - (insert "/" name "\n") - (sort-lines nil (point-min) (point-max)) - (save-buffer)) - (when created - (git-call-process nil "update-index" "--add" "--" (file-relative-name ignore-name))) - (git-update-status-files (list (file-relative-name ignore-name))))) - -; propertize definition for XEmacs, stolen from erc-compat -(eval-when-compile - (unless (fboundp 'propertize) - (defun propertize (string &rest props) - (let ((string (copy-sequence string))) - (while props - (put-text-property 0 (length string) (nth 0 props) (nth 1 props) string) - (setq props (cddr props))) - string)))) - -;;;; Wrappers for basic git commands -;;;; ------------------------------------------------------------ - -(defun git-rev-parse (rev) - "Parse a revision name and return its SHA1." - (git-get-string-sha1 - (git-call-process-string "rev-parse" rev))) - -(defun git-config (key) - "Retrieve the value associated to KEY in the git repository config file." - (let ((str (git-call-process-string "config" key))) - (and str (car (split-string str "\n"))))) - -(defun git-symbolic-ref (ref) - "Wrapper for the git-symbolic-ref command." - (let ((str (git-call-process-string "symbolic-ref" ref))) - (and str (car (split-string str "\n"))))) - -(defun git-update-ref (ref newval &optional oldval reason) - "Update a reference by calling git-update-ref." - (let ((args (and oldval (list oldval)))) - (when newval (push newval args)) - (push ref args) - (when reason - (push reason args) - (push "-m" args)) - (unless newval (push "-d" args)) - (apply 'git-call-process-display-error "update-ref" args))) - -(defun git-for-each-ref (&rest specs) - "Return a list of refs using git-for-each-ref. -Each entry is a cons of (SHORT-NAME . FULL-NAME)." - (let (refs) - (with-temp-buffer - (apply #'git-call-process t "for-each-ref" "--format=%(refname)" specs) - (goto-char (point-min)) - (while (re-search-forward "^[^/\n]+/[^/\n]+/\\(.+\\)$" nil t) - (push (cons (match-string 1) (match-string 0)) refs))) - (nreverse refs))) - -(defun git-read-tree (tree &optional index-file) - "Read a tree into the index file." - (let ((process-environment - (append (and index-file (list (concat "GIT_INDEX_FILE=" index-file))) process-environment))) - (apply 'git-call-process-display-error "read-tree" (if tree (list tree))))) - -(defun git-write-tree (&optional index-file) - "Call git-write-tree and return the resulting tree SHA1 as a string." - (let ((process-environment - (append (and index-file (list (concat "GIT_INDEX_FILE=" index-file))) process-environment))) - (git-get-string-sha1 - (git-call-process-string-display-error "write-tree")))) - -(defun git-commit-tree (buffer tree parent) - "Create a commit and possibly update HEAD. -Create a commit with the message in BUFFER using the tree with hash TREE. -Use PARENT as the parent of the new commit. If PARENT is the current \"HEAD\", -update the \"HEAD\" reference to the new commit." - (let ((author-name (git-get-committer-name)) - (author-email (git-get-committer-email)) - (subject "commit (initial): ") - author-date log-start log-end args coding-system-for-write) - (when parent - (setq subject "commit: ") - (push "-p" args) - (push parent args)) - (with-current-buffer buffer - (goto-char (point-min)) - (if - (setq log-start (re-search-forward (concat "^" (regexp-quote git-log-msg-separator) "\n") nil t)) - (save-restriction - (narrow-to-region (point-min) log-start) - (goto-char (point-min)) - (when (re-search-forward "^Author: +\\(.*?\\) *<\\(.*\\)> *$" nil t) - (setq author-name (match-string 1) - author-email (match-string 2))) - (goto-char (point-min)) - (when (re-search-forward "^Date: +\\(.*\\)$" nil t) - (setq author-date (match-string 1))) - (goto-char (point-min)) - (when (re-search-forward "^Merge: +\\(.*\\)" nil t) - (setq subject "commit (merge): ") - (dolist (parent (split-string (match-string 1) " +" t)) - (push "-p" args) - (push parent args)))) - (setq log-start (point-min))) - (setq log-end (point-max)) - (goto-char log-start) - (when (re-search-forward ".*$" nil t) - (setq subject (concat subject (match-string 0)))) - (setq coding-system-for-write buffer-file-coding-system)) - (let ((commit - (git-get-string-sha1 - (let ((env `(("GIT_AUTHOR_NAME" . ,author-name) - ("GIT_AUTHOR_EMAIL" . ,author-email) - ("GIT_COMMITTER_NAME" . ,(git-get-committer-name)) - ("GIT_COMMITTER_EMAIL" . ,(git-get-committer-email))))) - (when author-date (push `("GIT_AUTHOR_DATE" . ,author-date) env)) - (apply #'git-run-command-region - buffer log-start log-end env - "commit-tree" tree (nreverse args)))))) - (when commit (git-update-ref "HEAD" commit parent subject)) - commit))) - -(defun git-empty-db-p () - "Check if the git db is empty (no commit done yet)." - (not (eq 0 (git-call-process nil "rev-parse" "--verify" "HEAD")))) - -(defun git-get-merge-heads () - "Retrieve the merge heads from the MERGE_HEAD file if present." - (let (heads) - (when (file-readable-p ".git/MERGE_HEAD") - (with-temp-buffer - (insert-file-contents ".git/MERGE_HEAD" nil nil nil t) - (goto-char (point-min)) - (while (re-search-forward "[0-9a-f]\\{40\\}" nil t) - (push (match-string 0) heads)))) - (nreverse heads))) - -(defun git-get-commit-description (commit) - "Get a one-line description of COMMIT." - (let ((coding-system-for-read (git-get-logoutput-coding-system))) - (let ((descr (git-call-process-string "log" "--max-count=1" "--pretty=oneline" commit))) - (if (and descr (string-match "\\`\\([0-9a-f]\\{40\\}\\) *\\(.*\\)$" descr)) - (concat (substring (match-string 1 descr) 0 10) " - " (match-string 2 descr)) - descr)))) - -;;;; File info structure -;;;; ------------------------------------------------------------ - -; fileinfo structure stolen from pcl-cvs -(defstruct (git-fileinfo - (:copier nil) - (:constructor git-create-fileinfo (state name &optional old-perm new-perm rename-state orig-name marked)) - (:conc-name git-fileinfo->)) - marked ;; t/nil - state ;; current state - name ;; file name - old-perm new-perm ;; permission flags - rename-state ;; rename or copy state - orig-name ;; original name for renames or copies - needs-update ;; whether file needs to be updated - needs-refresh) ;; whether file needs to be refreshed - -(defvar git-status nil) - -(defun git-set-fileinfo-state (info state) - "Set the state of a file info." - (unless (eq (git-fileinfo->state info) state) - (setf (git-fileinfo->state info) state - (git-fileinfo->new-perm info) (git-fileinfo->old-perm info) - (git-fileinfo->rename-state info) nil - (git-fileinfo->orig-name info) nil - (git-fileinfo->needs-update info) nil - (git-fileinfo->needs-refresh info) t))) - -(defun git-status-filenames-map (status func files &rest args) - "Apply FUNC to the status files names in the FILES list. -The list must be sorted." - (when files - (let ((file (pop files)) - (node (ewoc-nth status 0))) - (while (and file node) - (let* ((info (ewoc-data node)) - (name (git-fileinfo->name info))) - (if (string-lessp name file) - (setq node (ewoc-next status node)) - (if (string-equal name file) - (apply func info args)) - (setq file (pop files)))))))) - -(defun git-set-filenames-state (status files state) - "Set the state of a list of named files. The list must be sorted" - (when files - (git-status-filenames-map status #'git-set-fileinfo-state files state) - (unless state ;; delete files whose state has been set to nil - (ewoc-filter status (lambda (info) (git-fileinfo->state info)))))) - -(defun git-state-code (code) - "Convert from a string to a added/deleted/modified state." - (case (string-to-char code) - (?M 'modified) - (?? 'unknown) - (?A 'added) - (?D 'deleted) - (?U 'unmerged) - (?T 'modified) - (t nil))) - -(defun git-status-code-as-string (code) - "Format a git status code as string." - (case code - ('modified (propertize "Modified" 'face 'git-status-face)) - ('unknown (propertize "Unknown " 'face 'git-unknown-face)) - ('added (propertize "Added " 'face 'git-status-face)) - ('deleted (propertize "Deleted " 'face 'git-status-face)) - ('unmerged (propertize "Unmerged" 'face 'git-unmerged-face)) - ('uptodate (propertize "Uptodate" 'face 'git-uptodate-face)) - ('ignored (propertize "Ignored " 'face 'git-ignored-face)) - (t "? "))) - -(defun git-file-type-as-string (old-perm new-perm) - "Return a string describing the file type based on its permissions." - (let* ((old-type (lsh (or old-perm 0) -9)) - (new-type (lsh (or new-perm 0) -9)) - (str (case new-type - (64 ;; file - (case old-type - (64 nil) - (80 " (type change symlink -> file)") - (112 " (type change subproject -> file)"))) - (80 ;; symlink - (case old-type - (64 " (type change file -> symlink)") - (112 " (type change subproject -> symlink)") - (t " (symlink)"))) - (112 ;; subproject - (case old-type - (64 " (type change file -> subproject)") - (80 " (type change symlink -> subproject)") - (t " (subproject)"))) - (72 nil) ;; directory (internal, not a real git state) - (0 ;; deleted or unknown - (case old-type - (80 " (symlink)") - (112 " (subproject)"))) - (t (format " (unknown type %o)" new-type))))) - (cond (str (propertize str 'face 'git-status-face)) - ((eq new-type 72) "/") - (t "")))) - -(defun git-rename-as-string (info) - "Return a string describing the copy or rename associated with INFO, or an empty string if none." - (let ((state (git-fileinfo->rename-state info))) - (if state - (propertize - (concat " (" - (if (eq state 'copy) "copied from " - (if (eq (git-fileinfo->state info) 'added) "renamed from " - "renamed to ")) - (git-escape-file-name (git-fileinfo->orig-name info)) - ")") 'face 'git-status-face) - ""))) - -(defun git-permissions-as-string (old-perm new-perm) - "Format a permission change as string." - (propertize - (if (or (not old-perm) - (not new-perm) - (eq 0 (logand ?\111 (logxor old-perm new-perm)))) - " " - (if (eq 0 (logand ?\111 old-perm)) "+x" "-x")) - 'face 'git-permission-face)) - -(defun git-fileinfo-prettyprint (info) - "Pretty-printer for the git-fileinfo structure." - (let ((old-perm (git-fileinfo->old-perm info)) - (new-perm (git-fileinfo->new-perm info))) - (insert (concat " " (if (git-fileinfo->marked info) (propertize "*" 'face 'git-mark-face) " ") - " " (git-status-code-as-string (git-fileinfo->state info)) - " " (git-permissions-as-string old-perm new-perm) - " " (git-escape-file-name (git-fileinfo->name info)) - (git-file-type-as-string old-perm new-perm) - (git-rename-as-string info))))) - -(defun git-update-node-fileinfo (node info) - "Update the fileinfo of the specified node. The names are assumed to match already." - (let ((data (ewoc-data node))) - (setf - ;; preserve the marked flag - (git-fileinfo->marked info) (git-fileinfo->marked data) - (git-fileinfo->needs-update data) nil) - (when (not (equal info data)) - (setf (git-fileinfo->needs-refresh info) t - (ewoc-data node) info)))) - -(defun git-insert-info-list (status infolist files) - "Insert a sorted list of file infos in the status buffer, replacing existing ones if any." - (let* ((info (pop infolist)) - (node (ewoc-nth status 0)) - (name (and info (git-fileinfo->name info))) - remaining) - (while info - (let ((nodename (and node (git-fileinfo->name (ewoc-data node))))) - (while (and files (string-lessp (car files) name)) - (push (pop files) remaining)) - (when (and files (string-equal (car files) name)) - (setq files (cdr files))) - (cond ((not nodename) - (setq node (ewoc-enter-last status info)) - (setq info (pop infolist)) - (setq name (and info (git-fileinfo->name info)))) - ((string-lessp nodename name) - (setq node (ewoc-next status node))) - ((string-equal nodename name) - ;; preserve the marked flag - (git-update-node-fileinfo node info) - (setq info (pop infolist)) - (setq name (and info (git-fileinfo->name info)))) - (t - (setq node (ewoc-enter-before status node info)) - (setq info (pop infolist)) - (setq name (and info (git-fileinfo->name info))))))) - (nconc (nreverse remaining) files))) - -(defun git-run-diff-index (status files) - "Run git-diff-index on FILES and parse the results into STATUS. -Return the list of files that haven't been handled." - (let (infolist) - (with-temp-buffer - (apply #'git-call-process t "diff-index" "-z" "-M" "HEAD" "--" files) - (goto-char (point-min)) - (while (re-search-forward - ":\\([0-7]\\{6\\}\\) \\([0-7]\\{6\\}\\) [0-9a-f]\\{40\\} [0-9a-f]\\{40\\} \\(\\([ADMUT]\\)\0\\([^\0]+\\)\\|\\([CR]\\)[0-9]*\0\\([^\0]+\\)\0\\([^\0]+\\)\\)\0" - nil t 1) - (let ((old-perm (string-to-number (match-string 1) 8)) - (new-perm (string-to-number (match-string 2) 8)) - (state (or (match-string 4) (match-string 6))) - (name (or (match-string 5) (match-string 7))) - (new-name (match-string 8))) - (if new-name ; copy or rename - (if (eq ?C (string-to-char state)) - (push (git-create-fileinfo 'added new-name old-perm new-perm 'copy name) infolist) - (push (git-create-fileinfo 'deleted name 0 0 'rename new-name) infolist) - (push (git-create-fileinfo 'added new-name old-perm new-perm 'rename name) infolist)) - (push (git-create-fileinfo (git-state-code state) name old-perm new-perm) infolist))))) - (setq infolist (sort (nreverse infolist) - (lambda (info1 info2) - (string-lessp (git-fileinfo->name info1) - (git-fileinfo->name info2))))) - (git-insert-info-list status infolist files))) - -(defun git-find-status-file (status file) - "Find a given file in the status ewoc and return its node." - (let ((node (ewoc-nth status 0))) - (while (and node (not (string= file (git-fileinfo->name (ewoc-data node))))) - (setq node (ewoc-next status node))) - node)) - -(defun git-run-ls-files (status files default-state &rest options) - "Run git-ls-files on FILES and parse the results into STATUS. -Return the list of files that haven't been handled." - (let (infolist) - (with-temp-buffer - (apply #'git-call-process t "ls-files" "-z" (append options (list "--") files)) - (goto-char (point-min)) - (while (re-search-forward "\\([^\0]*?\\)\\(/?\\)\0" nil t 1) - (let ((name (match-string 1))) - (push (git-create-fileinfo default-state name 0 - (if (string-equal "/" (match-string 2)) (lsh ?\110 9) 0)) - infolist)))) - (setq infolist (nreverse infolist)) ;; assume it is sorted already - (git-insert-info-list status infolist files))) - -(defun git-run-ls-files-cached (status files default-state) - "Run git-ls-files -c on FILES and parse the results into STATUS. -Return the list of files that haven't been handled." - (let (infolist) - (with-temp-buffer - (apply #'git-call-process t "ls-files" "-z" "-s" "-c" "--" files) - (goto-char (point-min)) - (while (re-search-forward "\\([0-7]\\{6\\}\\) [0-9a-f]\\{40\\} 0\t\\([^\0]+\\)\0" nil t) - (let* ((new-perm (string-to-number (match-string 1) 8)) - (old-perm (if (eq default-state 'added) 0 new-perm)) - (name (match-string 2))) - (push (git-create-fileinfo default-state name old-perm new-perm) infolist)))) - (setq infolist (nreverse infolist)) ;; assume it is sorted already - (git-insert-info-list status infolist files))) - -(defun git-run-ls-unmerged (status files) - "Run git-ls-files -u on FILES and parse the results into STATUS." - (with-temp-buffer - (apply #'git-call-process t "ls-files" "-z" "-u" "--" files) - (goto-char (point-min)) - (let (unmerged-files) - (while (re-search-forward "[0-7]\\{6\\} [0-9a-f]\\{40\\} [123]\t\\([^\0]+\\)\0" nil t) - (push (match-string 1) unmerged-files)) - (setq unmerged-files (nreverse unmerged-files)) ;; assume it is sorted already - (git-set-filenames-state status unmerged-files 'unmerged)))) - -(defun git-get-exclude-files () - "Get the list of exclude files to pass to git-ls-files." - (let (files - (config (git-config "core.excludesfile"))) - (when (file-readable-p ".git/info/exclude") - (push ".git/info/exclude" files)) - (when (and config (file-readable-p config)) - (push config files)) - files)) - -(defun git-run-ls-files-with-excludes (status files default-state &rest options) - "Run git-ls-files on FILES with appropriate --exclude-from options." - (let ((exclude-files (git-get-exclude-files))) - (apply #'git-run-ls-files status files default-state "--directory" "--no-empty-directory" - (concat "--exclude-per-directory=" git-per-dir-ignore-file) - (append options (mapcar (lambda (f) (concat "--exclude-from=" f)) exclude-files))))) - -(defun git-update-status-files (&optional files mark-files) - "Update the status of FILES from the index. -The FILES list must be sorted." - (unless git-status (error "Not in git-status buffer.")) - ;; set the needs-update flag on existing files - (if files - (git-status-filenames-map - git-status (lambda (info) (setf (git-fileinfo->needs-update info) t)) files) - (ewoc-map (lambda (info) (setf (git-fileinfo->needs-update info) t) nil) git-status) - (git-call-process nil "update-index" "--refresh") - (when git-show-uptodate - (git-run-ls-files-cached git-status nil 'uptodate))) - (let ((remaining-files - (if (git-empty-db-p) ; we need some special handling for an empty db - (git-run-ls-files-cached git-status files 'added) - (git-run-diff-index git-status files)))) - (git-run-ls-unmerged git-status files) - (when (or remaining-files (and git-show-unknown (not files))) - (setq remaining-files (git-run-ls-files-with-excludes git-status remaining-files 'unknown "-o"))) - (when (or remaining-files (and git-show-ignored (not files))) - (setq remaining-files (git-run-ls-files-with-excludes git-status remaining-files 'ignored "-o" "-i"))) - (unless files - (setq remaining-files (git-get-filenames (ewoc-collect git-status #'git-fileinfo->needs-update)))) - (when remaining-files - (setq remaining-files (git-run-ls-files-cached git-status remaining-files 'uptodate))) - (git-set-filenames-state git-status remaining-files nil) - (when mark-files (git-mark-files git-status files)) - (git-refresh-files) - (git-refresh-ewoc-hf git-status))) - -(defun git-mark-files (status files) - "Mark all the specified FILES, and unmark the others." - (let ((file (and files (pop files))) - (node (ewoc-nth status 0))) - (while node - (let ((info (ewoc-data node))) - (if (and file (string-equal (git-fileinfo->name info) file)) - (progn - (unless (git-fileinfo->marked info) - (setf (git-fileinfo->marked info) t) - (setf (git-fileinfo->needs-refresh info) t)) - (setq file (pop files)) - (setq node (ewoc-next status node))) - (when (git-fileinfo->marked info) - (setf (git-fileinfo->marked info) nil) - (setf (git-fileinfo->needs-refresh info) t)) - (if (and file (string-lessp file (git-fileinfo->name info))) - (setq file (pop files)) - (setq node (ewoc-next status node)))))))) - -(defun git-marked-files () - "Return a list of all marked files, or if none a list containing just the file at cursor position." - (unless git-status (error "Not in git-status buffer.")) - (or (ewoc-collect git-status (lambda (info) (git-fileinfo->marked info))) - (list (ewoc-data (ewoc-locate git-status))))) - -(defun git-marked-files-state (&rest states) - "Return a sorted list of marked files that are in the specified states." - (let ((files (git-marked-files)) - result) - (dolist (info files) - (when (memq (git-fileinfo->state info) states) - (push info result))) - (nreverse result))) - -(defun git-refresh-files () - "Refresh all files that need it and clear the needs-refresh flag." - (unless git-status (error "Not in git-status buffer.")) - (ewoc-map - (lambda (info) - (let ((refresh (git-fileinfo->needs-refresh info))) - (setf (git-fileinfo->needs-refresh info) nil) - refresh)) - git-status) - ; move back to goal column - (when goal-column (move-to-column goal-column))) - -(defun git-refresh-ewoc-hf (status) - "Refresh the ewoc header and footer." - (let ((branch (git-symbolic-ref "HEAD")) - (head (if (git-empty-db-p) "Nothing committed yet" - (git-get-commit-description "HEAD"))) - (merge-heads (git-get-merge-heads))) - (ewoc-set-hf status - (format "Directory: %s\nBranch: %s\nHead: %s%s\n" - default-directory - (if branch - (if (string-match "^refs/heads/" branch) - (substring branch (match-end 0)) - branch) - "none (detached HEAD)") - head - (if merge-heads - (concat "\nMerging: " - (mapconcat (lambda (str) (git-get-commit-description str)) merge-heads "\n ")) - "")) - (if (ewoc-nth status 0) "" " No changes.")))) - -(defun git-get-filenames (files) - (mapcar (lambda (info) (git-fileinfo->name info)) files)) - -(defun git-update-index (index-file files) - "Run git-update-index on a list of files." - (let ((process-environment (append (and index-file (list (concat "GIT_INDEX_FILE=" index-file))) - process-environment)) - added deleted modified) - (dolist (info files) - (case (git-fileinfo->state info) - ('added (push info added)) - ('deleted (push info deleted)) - ('modified (push info modified)))) - (and - (or (not added) (apply #'git-call-process-display-error "update-index" "--add" "--" (git-get-filenames added))) - (or (not deleted) (apply #'git-call-process-display-error "update-index" "--remove" "--" (git-get-filenames deleted))) - (or (not modified) (apply #'git-call-process-display-error "update-index" "--" (git-get-filenames modified)))))) - -(defun git-run-pre-commit-hook () - "Run the pre-commit hook if any." - (unless git-status (error "Not in git-status buffer.")) - (let ((files (git-marked-files-state 'added 'deleted 'modified))) - (or (not files) - (not (file-executable-p ".git/hooks/pre-commit")) - (let ((index-file (make-temp-file "gitidx"))) - (unwind-protect - (let ((head-tree (unless (git-empty-db-p) (git-rev-parse "HEAD^{tree}")))) - (git-read-tree head-tree index-file) - (git-update-index index-file files) - (git-run-hook "pre-commit" `(("GIT_INDEX_FILE" . ,index-file)))) - (delete-file index-file)))))) - -(defun git-do-commit () - "Perform the actual commit using the current buffer as log message." - (interactive) - (let ((buffer (current-buffer)) - (index-file (make-temp-file "gitidx"))) - (with-current-buffer log-edit-parent-buffer - (if (git-marked-files-state 'unmerged) - (message "You cannot commit unmerged files, resolve them first.") - (unwind-protect - (let ((files (git-marked-files-state 'added 'deleted 'modified)) - head tree head-tree) - (unless (git-empty-db-p) - (setq head (git-rev-parse "HEAD") - head-tree (git-rev-parse "HEAD^{tree}"))) - (message "Running git commit...") - (when - (and - (git-read-tree head-tree index-file) - (git-update-index nil files) ;update both the default index - (git-update-index index-file files) ;and the temporary one - (setq tree (git-write-tree index-file))) - (if (or (not (string-equal tree head-tree)) - (yes-or-no-p "The tree was not modified, do you really want to perform an empty commit? ")) - (let ((commit (git-commit-tree buffer tree head))) - (when commit - (condition-case nil (delete-file ".git/MERGE_HEAD") (error nil)) - (condition-case nil (delete-file ".git/MERGE_MSG") (error nil)) - (with-current-buffer buffer (erase-buffer)) - (git-update-status-files (git-get-filenames files)) - (git-call-process nil "rerere") - (git-call-process nil "gc" "--auto") - (message "Committed %s." commit) - (git-run-hook "post-commit" nil))) - (message "Commit aborted.")))) - (delete-file index-file)))))) - - -;;;; Interactive functions -;;;; ------------------------------------------------------------ - -(defun git-mark-file () - "Mark the file that the cursor is on and move to the next one." - (interactive) - (unless git-status (error "Not in git-status buffer.")) - (let* ((pos (ewoc-locate git-status)) - (info (ewoc-data pos))) - (setf (git-fileinfo->marked info) t) - (ewoc-invalidate git-status pos) - (ewoc-goto-next git-status 1))) - -(defun git-unmark-file () - "Unmark the file that the cursor is on and move to the next one." - (interactive) - (unless git-status (error "Not in git-status buffer.")) - (let* ((pos (ewoc-locate git-status)) - (info (ewoc-data pos))) - (setf (git-fileinfo->marked info) nil) - (ewoc-invalidate git-status pos) - (ewoc-goto-next git-status 1))) - -(defun git-unmark-file-up () - "Unmark the file that the cursor is on and move to the previous one." - (interactive) - (unless git-status (error "Not in git-status buffer.")) - (let* ((pos (ewoc-locate git-status)) - (info (ewoc-data pos))) - (setf (git-fileinfo->marked info) nil) - (ewoc-invalidate git-status pos) - (ewoc-goto-prev git-status 1))) - -(defun git-mark-all () - "Mark all files." - (interactive) - (unless git-status (error "Not in git-status buffer.")) - (ewoc-map (lambda (info) (unless (git-fileinfo->marked info) - (setf (git-fileinfo->marked info) t))) git-status) - ; move back to goal column after invalidate - (when goal-column (move-to-column goal-column))) - -(defun git-unmark-all () - "Unmark all files." - (interactive) - (unless git-status (error "Not in git-status buffer.")) - (ewoc-map (lambda (info) (when (git-fileinfo->marked info) - (setf (git-fileinfo->marked info) nil) - t)) git-status) - ; move back to goal column after invalidate - (when goal-column (move-to-column goal-column))) - -(defun git-toggle-all-marks () - "Toggle all file marks." - (interactive) - (unless git-status (error "Not in git-status buffer.")) - (ewoc-map (lambda (info) (setf (git-fileinfo->marked info) (not (git-fileinfo->marked info))) t) git-status) - ; move back to goal column after invalidate - (when goal-column (move-to-column goal-column))) - -(defun git-next-file (&optional n) - "Move the selection down N files." - (interactive "p") - (unless git-status (error "Not in git-status buffer.")) - (ewoc-goto-next git-status n)) - -(defun git-prev-file (&optional n) - "Move the selection up N files." - (interactive "p") - (unless git-status (error "Not in git-status buffer.")) - (ewoc-goto-prev git-status n)) - -(defun git-next-unmerged-file (&optional n) - "Move the selection down N unmerged files." - (interactive "p") - (unless git-status (error "Not in git-status buffer.")) - (let* ((last (ewoc-locate git-status)) - (node (ewoc-next git-status last))) - (while (and node (> n 0)) - (when (eq 'unmerged (git-fileinfo->state (ewoc-data node))) - (setq n (1- n)) - (setq last node)) - (setq node (ewoc-next git-status node))) - (ewoc-goto-node git-status last))) - -(defun git-prev-unmerged-file (&optional n) - "Move the selection up N unmerged files." - (interactive "p") - (unless git-status (error "Not in git-status buffer.")) - (let* ((last (ewoc-locate git-status)) - (node (ewoc-prev git-status last))) - (while (and node (> n 0)) - (when (eq 'unmerged (git-fileinfo->state (ewoc-data node))) - (setq n (1- n)) - (setq last node)) - (setq node (ewoc-prev git-status node))) - (ewoc-goto-node git-status last))) - -(defun git-insert-file (file) - "Insert file(s) into the git-status buffer." - (interactive "fInsert file: ") - (git-update-status-files (list (file-relative-name file)))) - -(defun git-add-file () - "Add marked file(s) to the index cache." - (interactive) - (let ((files (git-get-filenames (git-marked-files-state 'unknown 'ignored 'unmerged)))) - ;; FIXME: add support for directories - (unless files - (push (file-relative-name (read-file-name "File to add: " nil nil t)) files)) - (when (apply 'git-call-process-display-error "update-index" "--add" "--" files) - (git-update-status-files files) - (git-success-message "Added" files)))) - -(defun git-ignore-file () - "Add marked file(s) to the ignore list." - (interactive) - (let ((files (git-get-filenames (git-marked-files-state 'unknown)))) - (unless files - (push (file-relative-name (read-file-name "File to ignore: " nil nil t)) files)) - (dolist (f files) (git-append-to-ignore f)) - (git-update-status-files files) - (git-success-message "Ignored" files))) - -(defun git-remove-file () - "Remove the marked file(s)." - (interactive) - (let ((files (git-get-filenames (git-marked-files-state 'added 'modified 'unknown 'uptodate 'ignored)))) - (unless files - (push (file-relative-name (read-file-name "File to remove: " nil nil t)) files)) - (if (yes-or-no-p - (if (cdr files) - (format "Remove %d files? " (length files)) - (format "Remove %s? " (car files)))) - (progn - (dolist (name files) - (ignore-errors - (if (file-directory-p name) - (delete-directory name) - (delete-file name)))) - (when (apply 'git-call-process-display-error "update-index" "--remove" "--" files) - (git-update-status-files files) - (git-success-message "Removed" files))) - (message "Aborting")))) - -(defun git-revert-file () - "Revert changes to the marked file(s)." - (interactive) - (let ((files (git-marked-files-state 'added 'deleted 'modified 'unmerged)) - added modified) - (when (and files - (yes-or-no-p - (if (cdr files) - (format "Revert %d files? " (length files)) - (format "Revert %s? " (git-fileinfo->name (car files)))))) - (dolist (info files) - (case (git-fileinfo->state info) - ('added (push (git-fileinfo->name info) added)) - ('deleted (push (git-fileinfo->name info) modified)) - ('unmerged (push (git-fileinfo->name info) modified)) - ('modified (push (git-fileinfo->name info) modified)))) - ;; check if a buffer contains one of the files and isn't saved - (dolist (file modified) - (let ((buffer (get-file-buffer file))) - (when (and buffer (buffer-modified-p buffer)) - (error "Buffer %s is modified. Please kill or save modified buffers before reverting." (buffer-name buffer))))) - (let ((ok (and - (or (not added) - (apply 'git-call-process-display-error "update-index" "--force-remove" "--" added)) - (or (not modified) - (apply 'git-call-process-display-error "checkout" "HEAD" modified)))) - (names (git-get-filenames files))) - (git-update-status-files names) - (when ok - (dolist (file modified) - (let ((buffer (get-file-buffer file))) - (when buffer (with-current-buffer buffer (revert-buffer t t t))))) - (git-success-message "Reverted" names)))))) - -(defun git-remove-handled () - "Remove handled files from the status list." - (interactive) - (ewoc-filter git-status - (lambda (info) - (case (git-fileinfo->state info) - ('ignored git-show-ignored) - ('uptodate git-show-uptodate) - ('unknown git-show-unknown) - (t t)))) - (unless (ewoc-nth git-status 0) ; refresh header if list is empty - (git-refresh-ewoc-hf git-status))) - -(defun git-toggle-show-uptodate () - "Toogle the option for showing up-to-date files." - (interactive) - (if (setq git-show-uptodate (not git-show-uptodate)) - (git-refresh-status) - (git-remove-handled))) - -(defun git-toggle-show-ignored () - "Toogle the option for showing ignored files." - (interactive) - (if (setq git-show-ignored (not git-show-ignored)) - (progn - (message "Inserting ignored files...") - (git-run-ls-files-with-excludes git-status nil 'ignored "-o" "-i") - (git-refresh-files) - (git-refresh-ewoc-hf git-status) - (message "Inserting ignored files...done")) - (git-remove-handled))) - -(defun git-toggle-show-unknown () - "Toogle the option for showing unknown files." - (interactive) - (if (setq git-show-unknown (not git-show-unknown)) - (progn - (message "Inserting unknown files...") - (git-run-ls-files-with-excludes git-status nil 'unknown "-o") - (git-refresh-files) - (git-refresh-ewoc-hf git-status) - (message "Inserting unknown files...done")) - (git-remove-handled))) - -(defun git-expand-directory (info) - "Expand the directory represented by INFO to list its files." - (when (eq (lsh (git-fileinfo->new-perm info) -9) ?\110) - (let ((dir (git-fileinfo->name info))) - (git-set-filenames-state git-status (list dir) nil) - (git-run-ls-files-with-excludes git-status (list (concat dir "/")) 'unknown "-o") - (git-refresh-files) - (git-refresh-ewoc-hf git-status) - t))) - -(defun git-setup-diff-buffer (buffer) - "Setup a buffer for displaying a diff." - (let ((dir default-directory)) - (with-current-buffer buffer - (diff-mode) - (goto-char (point-min)) - (setq default-directory dir) - (setq buffer-read-only t))) - (display-buffer buffer) - ; shrink window only if it displays the status buffer - (when (eq (window-buffer) (current-buffer)) - (shrink-window-if-larger-than-buffer))) - -(defun git-diff-file () - "Diff the marked file(s) against HEAD." - (interactive) - (let ((files (git-marked-files))) - (git-setup-diff-buffer - (apply #'git-run-command-buffer "*git-diff*" "diff-index" "-p" "-M" "HEAD" "--" (git-get-filenames files))))) - -(defun git-diff-file-merge-head (arg) - "Diff the marked file(s) against the first merge head (or the nth one with a numeric prefix)." - (interactive "p") - (let ((files (git-marked-files)) - (merge-heads (git-get-merge-heads))) - (unless merge-heads (error "No merge in progress")) - (git-setup-diff-buffer - (apply #'git-run-command-buffer "*git-diff*" "diff-index" "-p" "-M" - (or (nth (1- arg) merge-heads) "HEAD") "--" (git-get-filenames files))))) - -(defun git-diff-unmerged-file (stage) - "Diff the marked unmerged file(s) against the specified stage." - (let ((files (git-marked-files))) - (git-setup-diff-buffer - (apply #'git-run-command-buffer "*git-diff*" "diff-files" "-p" stage "--" (git-get-filenames files))))) - -(defun git-diff-file-base () - "Diff the marked unmerged file(s) against the common base file." - (interactive) - (git-diff-unmerged-file "-1")) - -(defun git-diff-file-mine () - "Diff the marked unmerged file(s) against my pre-merge version." - (interactive) - (git-diff-unmerged-file "-2")) - -(defun git-diff-file-other () - "Diff the marked unmerged file(s) against the other's pre-merge version." - (interactive) - (git-diff-unmerged-file "-3")) - -(defun git-diff-file-combined () - "Do a combined diff of the marked unmerged file(s)." - (interactive) - (git-diff-unmerged-file "-c")) - -(defun git-diff-file-idiff () - "Perform an interactive diff on the current file." - (interactive) - (let ((files (git-marked-files-state 'added 'deleted 'modified))) - (unless (eq 1 (length files)) - (error "Cannot perform an interactive diff on multiple files.")) - (let* ((filename (car (git-get-filenames files))) - (buff1 (find-file-noselect filename)) - (buff2 (git-run-command-buffer (concat filename ".~HEAD~") "cat-file" "blob" (concat "HEAD:" filename)))) - (ediff-buffers buff1 buff2)))) - -(defun git-log-file () - "Display a log of changes to the marked file(s)." - (interactive) - (let* ((files (git-marked-files)) - (coding-system-for-read git-commits-coding-system) - (buffer (apply #'git-run-command-buffer "*git-log*" "rev-list" "--pretty" "HEAD" "--" (git-get-filenames files)))) - (with-current-buffer buffer - ; (git-log-mode) FIXME: implement log mode - (goto-char (point-min)) - (setq buffer-read-only t)) - (display-buffer buffer))) - -(defun git-log-edit-files () - "Return a list of marked files for use in the log-edit buffer." - (with-current-buffer log-edit-parent-buffer - (git-get-filenames (git-marked-files-state 'added 'deleted 'modified)))) - -(defun git-log-edit-diff () - "Run a diff of the current files being committed from a log-edit buffer." - (with-current-buffer log-edit-parent-buffer - (git-diff-file))) - -(defun git-append-sign-off (name email) - "Append a Signed-off-by entry to the current buffer, avoiding duplicates." - (let ((sign-off (format "Signed-off-by: %s <%s>" name email)) - (case-fold-search t)) - (goto-char (point-min)) - (unless (re-search-forward (concat "^" (regexp-quote sign-off)) nil t) - (goto-char (point-min)) - (unless (re-search-forward "^Signed-off-by: " nil t) - (setq sign-off (concat "\n" sign-off))) - (goto-char (point-max)) - (insert sign-off "\n")))) - -(defun git-setup-log-buffer (buffer &optional merge-heads author-name author-email subject date msg) - "Setup the log buffer for a commit." - (unless git-status (error "Not in git-status buffer.")) - (let ((dir default-directory) - (committer-name (git-get-committer-name)) - (committer-email (git-get-committer-email)) - (sign-off git-append-signed-off-by)) - (with-current-buffer buffer - (cd dir) - (erase-buffer) - (insert - (propertize - (format "Author: %s <%s>\n%s%s" - (or author-name committer-name) - (or author-email committer-email) - (if date (format "Date: %s\n" date) "") - (if merge-heads - (format "Merge: %s\n" - (mapconcat 'identity merge-heads " ")) - "")) - 'face 'git-header-face) - (propertize git-log-msg-separator 'face 'git-separator-face) - "\n") - (when subject (insert subject "\n\n")) - (cond (msg (insert msg "\n")) - ((file-readable-p ".git/rebase-apply/msg") - (insert-file-contents ".git/rebase-apply/msg")) - ((file-readable-p ".git/MERGE_MSG") - (insert-file-contents ".git/MERGE_MSG"))) - ; delete empty lines at end - (goto-char (point-min)) - (when (re-search-forward "\n+\\'" nil t) - (replace-match "\n" t t)) - (when sign-off (git-append-sign-off committer-name committer-email))) - buffer)) - -(define-derived-mode git-log-edit-mode log-edit-mode "Git-Log-Edit" - "Major mode for editing git log messages. - -Set up git-specific `font-lock-keywords' for `log-edit-mode'." - (set (make-local-variable 'font-lock-defaults) - '(git-log-edit-font-lock-keywords t t))) - -(defun git-commit-file () - "Commit the marked file(s), asking for a commit message." - (interactive) - (unless git-status (error "Not in git-status buffer.")) - (when (git-run-pre-commit-hook) - (let ((buffer (get-buffer-create "*git-commit*")) - (coding-system (git-get-commits-coding-system)) - author-name author-email subject date) - (when (eq 0 (buffer-size buffer)) - (when (file-readable-p ".git/rebase-apply/info") - (with-temp-buffer - (insert-file-contents ".git/rebase-apply/info") - (goto-char (point-min)) - (when (re-search-forward "^Author: \\(.*\\)\nEmail: \\(.*\\)$" nil t) - (setq author-name (match-string 1)) - (setq author-email (match-string 2))) - (goto-char (point-min)) - (when (re-search-forward "^Subject: \\(.*\\)$" nil t) - (setq subject (match-string 1))) - (goto-char (point-min)) - (when (re-search-forward "^Date: \\(.*\\)$" nil t) - (setq date (match-string 1))))) - (git-setup-log-buffer buffer (git-get-merge-heads) author-name author-email subject date)) - (if (boundp 'log-edit-diff-function) - (log-edit 'git-do-commit nil '((log-edit-listfun . git-log-edit-files) - (log-edit-diff-function . git-log-edit-diff)) buffer 'git-log-edit-mode) - (log-edit 'git-do-commit nil 'git-log-edit-files buffer - 'git-log-edit-mode)) - (setq paragraph-separate (concat (regexp-quote git-log-msg-separator) "$\\|Author: \\|Date: \\|Merge: \\|Signed-off-by: \\|\f\\|[ ]*$")) - (setq buffer-file-coding-system coding-system) - (re-search-forward (regexp-quote (concat git-log-msg-separator "\n")) nil t)))) - -(defun git-setup-commit-buffer (commit) - "Setup the commit buffer with the contents of COMMIT." - (let (parents author-name author-email subject date msg) - (with-temp-buffer - (let ((coding-system (git-get-logoutput-coding-system))) - (git-call-process t "log" "-1" "--pretty=medium" "--abbrev=40" commit) - (goto-char (point-min)) - (when (re-search-forward "^Merge: *\\(.*\\)$" nil t) - (setq parents (cdr (split-string (match-string 1) " +")))) - (when (re-search-forward "^Author: *\\(.*\\) <\\(.*\\)>$" nil t) - (setq author-name (match-string 1)) - (setq author-email (match-string 2))) - (when (re-search-forward "^Date: *\\(.*\\)$" nil t) - (setq date (match-string 1))) - (while (re-search-forward "^ \\(.*\\)$" nil t) - (push (match-string 1) msg)) - (setq msg (nreverse msg)) - (setq subject (pop msg)) - (while (and msg (zerop (length (car msg))) (pop msg))))) - (git-setup-log-buffer (get-buffer-create "*git-commit*") - parents author-name author-email subject date - (mapconcat #'identity msg "\n")))) - -(defun git-get-commit-files (commit) - "Retrieve a sorted list of files modified by COMMIT." - (let (files) - (with-temp-buffer - (git-call-process t "diff-tree" "-m" "-r" "-z" "--name-only" "--no-commit-id" "--root" commit) - (goto-char (point-min)) - (while (re-search-forward "\\([^\0]*\\)\0" nil t 1) - (push (match-string 1) files))) - (sort files #'string-lessp))) - -(defun git-read-commit-name (prompt &optional default) - "Ask for a commit name, with completion for local branch, remote branch and tag." - (completing-read prompt - (list* "HEAD" "ORIG_HEAD" "FETCH_HEAD" (mapcar #'car (git-for-each-ref))) - nil nil nil nil default)) - -(defun git-checkout (branch &optional merge) - "Checkout a branch, tag, or any commit. -Use a prefix arg if git should merge while checking out." - (interactive - (list (git-read-commit-name "Checkout: ") - current-prefix-arg)) - (unless git-status (error "Not in git-status buffer.")) - (let ((args (list branch "--"))) - (when merge (push "-m" args)) - (when (apply #'git-call-process-display-error "checkout" args) - (git-update-status-files)))) - -(defun git-branch (branch) - "Create a branch from the current HEAD and switch to it." - (interactive (list (git-read-commit-name "Branch: "))) - (unless git-status (error "Not in git-status buffer.")) - (if (git-rev-parse (concat "refs/heads/" branch)) - (if (yes-or-no-p (format "Branch %s already exists, replace it? " branch)) - (and (git-call-process-display-error "branch" "-f" branch) - (git-call-process-display-error "checkout" branch)) - (message "Canceled.")) - (git-call-process-display-error "checkout" "-b" branch)) - (git-refresh-ewoc-hf git-status)) - -(defun git-amend-commit () - "Undo the last commit on HEAD, and set things up to commit an -amended version of it." - (interactive) - (unless git-status (error "Not in git-status buffer.")) - (when (git-empty-db-p) (error "No commit to amend.")) - (let* ((commit (git-rev-parse "HEAD")) - (files (git-get-commit-files commit))) - (when (if (git-rev-parse "HEAD^") - (git-call-process-display-error "reset" "--soft" "HEAD^") - (and (git-update-ref "ORIG_HEAD" commit) - (git-update-ref "HEAD" nil commit))) - (git-update-status-files files t) - (git-setup-commit-buffer commit) - (git-commit-file)))) - -(defun git-cherry-pick-commit (arg) - "Cherry-pick a commit." - (interactive (list (git-read-commit-name "Cherry-pick commit: "))) - (unless git-status (error "Not in git-status buffer.")) - (let ((commit (git-rev-parse (concat arg "^0")))) - (unless commit (error "Not a valid commit '%s'." arg)) - (when (git-rev-parse (concat commit "^2")) - (error "Cannot cherry-pick a merge commit.")) - (let ((files (git-get-commit-files commit)) - (ok (git-call-process-display-error "cherry-pick" "-n" commit))) - (git-update-status-files files ok) - (with-current-buffer (git-setup-commit-buffer commit) - (goto-char (point-min)) - (if (re-search-forward "^\n*Signed-off-by:" nil t 1) - (goto-char (match-beginning 0)) - (goto-char (point-max))) - (insert "(cherry picked from commit " commit ")\n")) - (when ok (git-commit-file))))) - -(defun git-revert-commit (arg) - "Revert a commit." - (interactive (list (git-read-commit-name "Revert commit: "))) - (unless git-status (error "Not in git-status buffer.")) - (let ((commit (git-rev-parse (concat arg "^0")))) - (unless commit (error "Not a valid commit '%s'." arg)) - (when (git-rev-parse (concat commit "^2")) - (error "Cannot revert a merge commit.")) - (let ((files (git-get-commit-files commit)) - (subject (git-get-commit-description commit)) - (ok (git-call-process-display-error "revert" "-n" commit))) - (git-update-status-files files ok) - (when (string-match "^[0-9a-f]+ - \\(.*\\)$" subject) - (setq subject (match-string 1 subject))) - (git-setup-log-buffer (get-buffer-create "*git-commit*") - (git-get-merge-heads) nil nil (format "Revert \"%s\"" subject) nil - (format "This reverts commit %s.\n" commit)) - (when ok (git-commit-file))))) - -(defun git-find-file () - "Visit the current file in its own buffer." - (interactive) - (unless git-status (error "Not in git-status buffer.")) - (let ((info (ewoc-data (ewoc-locate git-status)))) - (unless (git-expand-directory info) - (find-file (git-fileinfo->name info)) - (when (eq 'unmerged (git-fileinfo->state info)) - (smerge-mode 1))))) - -(defun git-find-file-other-window () - "Visit the current file in its own buffer in another window." - (interactive) - (unless git-status (error "Not in git-status buffer.")) - (let ((info (ewoc-data (ewoc-locate git-status)))) - (find-file-other-window (git-fileinfo->name info)) - (when (eq 'unmerged (git-fileinfo->state info)) - (smerge-mode)))) - -(defun git-find-file-imerge () - "Visit the current file in interactive merge mode." - (interactive) - (unless git-status (error "Not in git-status buffer.")) - (let ((info (ewoc-data (ewoc-locate git-status)))) - (find-file (git-fileinfo->name info)) - (smerge-ediff))) - -(defun git-view-file () - "View the current file in its own buffer." - (interactive) - (unless git-status (error "Not in git-status buffer.")) - (let ((info (ewoc-data (ewoc-locate git-status)))) - (view-file (git-fileinfo->name info)))) - -(defun git-refresh-status () - "Refresh the git status buffer." - (interactive) - (unless git-status (error "Not in git-status buffer.")) - (message "Refreshing git status...") - (git-update-status-files) - (message "Refreshing git status...done")) - -(defun git-status-quit () - "Quit git-status mode." - (interactive) - (bury-buffer)) - -;;;; Major Mode -;;;; ------------------------------------------------------------ - -(defvar git-status-mode-hook nil - "Run after `git-status-mode' is setup.") - -(defvar git-status-mode-map nil - "Keymap for git major mode.") - -(defvar git-status nil - "List of all files managed by the git-status mode.") - -(unless git-status-mode-map - (let ((map (make-keymap)) - (commit-map (make-sparse-keymap)) - (diff-map (make-sparse-keymap)) - (toggle-map (make-sparse-keymap))) - (suppress-keymap map) - (define-key map "?" 'git-help) - (define-key map "h" 'git-help) - (define-key map " " 'git-next-file) - (define-key map "a" 'git-add-file) - (define-key map "c" 'git-commit-file) - (define-key map "\C-c" commit-map) - (define-key map "d" diff-map) - (define-key map "=" 'git-diff-file) - (define-key map "f" 'git-find-file) - (define-key map "\r" 'git-find-file) - (define-key map "g" 'git-refresh-status) - (define-key map "i" 'git-ignore-file) - (define-key map "I" 'git-insert-file) - (define-key map "l" 'git-log-file) - (define-key map "m" 'git-mark-file) - (define-key map "M" 'git-mark-all) - (define-key map "n" 'git-next-file) - (define-key map "N" 'git-next-unmerged-file) - (define-key map "o" 'git-find-file-other-window) - (define-key map "p" 'git-prev-file) - (define-key map "P" 'git-prev-unmerged-file) - (define-key map "q" 'git-status-quit) - (define-key map "r" 'git-remove-file) - (define-key map "t" toggle-map) - (define-key map "T" 'git-toggle-all-marks) - (define-key map "u" 'git-unmark-file) - (define-key map "U" 'git-revert-file) - (define-key map "v" 'git-view-file) - (define-key map "x" 'git-remove-handled) - (define-key map "\C-?" 'git-unmark-file-up) - (define-key map "\M-\C-?" 'git-unmark-all) - ; the commit submap - (define-key commit-map "\C-a" 'git-amend-commit) - (define-key commit-map "\C-b" 'git-branch) - (define-key commit-map "\C-o" 'git-checkout) - (define-key commit-map "\C-p" 'git-cherry-pick-commit) - (define-key commit-map "\C-v" 'git-revert-commit) - ; the diff submap - (define-key diff-map "b" 'git-diff-file-base) - (define-key diff-map "c" 'git-diff-file-combined) - (define-key diff-map "=" 'git-diff-file) - (define-key diff-map "e" 'git-diff-file-idiff) - (define-key diff-map "E" 'git-find-file-imerge) - (define-key diff-map "h" 'git-diff-file-merge-head) - (define-key diff-map "m" 'git-diff-file-mine) - (define-key diff-map "o" 'git-diff-file-other) - ; the toggle submap - (define-key toggle-map "u" 'git-toggle-show-uptodate) - (define-key toggle-map "i" 'git-toggle-show-ignored) - (define-key toggle-map "k" 'git-toggle-show-unknown) - (define-key toggle-map "m" 'git-toggle-all-marks) - (setq git-status-mode-map map)) - (easy-menu-define git-menu git-status-mode-map - "Git Menu" - `("Git" - ["Refresh" git-refresh-status t] - ["Commit" git-commit-file t] - ["Checkout..." git-checkout t] - ["New Branch..." git-branch t] - ["Cherry-pick Commit..." git-cherry-pick-commit t] - ["Revert Commit..." git-revert-commit t] - ("Merge" - ["Next Unmerged File" git-next-unmerged-file t] - ["Prev Unmerged File" git-prev-unmerged-file t] - ["Interactive Merge File" git-find-file-imerge t] - ["Diff Against Common Base File" git-diff-file-base t] - ["Diff Combined" git-diff-file-combined t] - ["Diff Against Merge Head" git-diff-file-merge-head t] - ["Diff Against Mine" git-diff-file-mine t] - ["Diff Against Other" git-diff-file-other t]) - "--------" - ["Add File" git-add-file t] - ["Revert File" git-revert-file t] - ["Ignore File" git-ignore-file t] - ["Remove File" git-remove-file t] - ["Insert File" git-insert-file t] - "--------" - ["Find File" git-find-file t] - ["View File" git-view-file t] - ["Diff File" git-diff-file t] - ["Interactive Diff File" git-diff-file-idiff t] - ["Log" git-log-file t] - "--------" - ["Mark" git-mark-file t] - ["Mark All" git-mark-all t] - ["Unmark" git-unmark-file t] - ["Unmark All" git-unmark-all t] - ["Toggle All Marks" git-toggle-all-marks t] - ["Hide Handled Files" git-remove-handled t] - "--------" - ["Show Uptodate Files" git-toggle-show-uptodate :style toggle :selected git-show-uptodate] - ["Show Ignored Files" git-toggle-show-ignored :style toggle :selected git-show-ignored] - ["Show Unknown Files" git-toggle-show-unknown :style toggle :selected git-show-unknown] - "--------" - ["Quit" git-status-quit t]))) - - -;; git mode should only run in the *git status* buffer -(put 'git-status-mode 'mode-class 'special) - -(defun git-status-mode () - "Major mode for interacting with Git. -Commands: -\\{git-status-mode-map}" - (kill-all-local-variables) - (buffer-disable-undo) - (setq mode-name "git status" - major-mode 'git-status-mode - goal-column 17 - buffer-read-only t) - (use-local-map git-status-mode-map) - (let ((buffer-read-only nil)) - (erase-buffer) - (let ((status (ewoc-create 'git-fileinfo-prettyprint "" ""))) - (set (make-local-variable 'git-status) status)) - (set (make-local-variable 'list-buffers-directory) default-directory) - (make-local-variable 'git-show-uptodate) - (make-local-variable 'git-show-ignored) - (make-local-variable 'git-show-unknown) - (run-hooks 'git-status-mode-hook))) - -(defun git-find-status-buffer (dir) - "Find the git status buffer handling a specified directory." - (let ((list (buffer-list)) - (fulldir (expand-file-name dir)) - found) - (while (and list (not found)) - (let ((buffer (car list))) - (with-current-buffer buffer - (when (and list-buffers-directory - (string-equal fulldir (expand-file-name list-buffers-directory)) - (eq major-mode 'git-status-mode)) - (setq found buffer)))) - (setq list (cdr list))) - found)) - -(defun git-status (dir) - "Entry point into git-status mode." - (interactive "DSelect directory: ") - (setq dir (git-get-top-dir dir)) - (if (file-exists-p (concat (file-name-as-directory dir) ".git")) - (let ((buffer (or (and git-reuse-status-buffer (git-find-status-buffer dir)) - (create-file-buffer (expand-file-name "*git-status*" dir))))) - (switch-to-buffer buffer) - (cd dir) - (git-status-mode) - (git-refresh-status) - (goto-char (point-min)) - (add-hook 'after-save-hook 'git-update-saved-file)) - (message "%s is not a git working tree." dir))) - -(defun git-update-saved-file () - "Update the corresponding git-status buffer when a file is saved. -Meant to be used in `after-save-hook'." - (let* ((file (expand-file-name buffer-file-name)) - (dir (condition-case nil (git-get-top-dir (file-name-directory file)) (error nil))) - (buffer (and dir (git-find-status-buffer dir)))) - (when buffer - (with-current-buffer buffer - (let ((filename (file-relative-name file dir))) - ; skip files located inside the .git directory - (unless (string-match "^\\.git/" filename) - (git-call-process nil "add" "--refresh" "--" filename) - (git-update-status-files (list filename)))))))) - -(defun git-help () - "Display help for Git mode." - (interactive) - (describe-function 'git-status-mode)) - -(provide 'git) -;;; git.el ends here +(error "git.el no longer ships with git. It's recommended to +replace its use with Magit, or simply delete references to git.el +in your initialization file(s). See contrib/emacs/README in git's +sources (https://github.com/git/git/blob/master/contrib/emacs/README) +for suggested alternatives and for why this happened. Emacs's own +VC mode and Magit are viable alternatives.") diff --git a/contrib/mw-to-git/Makefile b/contrib/mw-to-git/Makefile index a4b6f7a2cd..4e603512a3 100644 --- a/contrib/mw-to-git/Makefile +++ b/contrib/mw-to-git/Makefile @@ -21,8 +21,9 @@ HERE=contrib/mw-to-git/ INSTALL = install SCRIPT_PERL_FULL=$(patsubst %,$(HERE)/%,$(SCRIPT_PERL)) -INSTLIBDIR=$(shell $(MAKE) -C $(GIT_ROOT_DIR)/perl \ - -s --no-print-directory instlibdir) +INSTLIBDIR=$(shell $(MAKE) -C $(GIT_ROOT_DIR)/ \ + -s --no-print-directory prefix=$(prefix) \ + perllibdir=$(perllibdir) perllibdir) DESTDIR_SQ = $(subst ','\'',$(DESTDIR)) INSTLIBDIR_SQ = $(subst ','\'',$(INSTLIBDIR)) @@ -7,6 +7,7 @@ #include "sigchain.h" #include "pkt-line.h" #include "sub-process.h" +#include "utf8.h" /* * convert.c - convert a file when checking it out and checking it in. @@ -265,6 +266,241 @@ static int will_convert_lf_to_crlf(size_t len, struct text_stat *stats, } +static int validate_encoding(const char *path, const char *enc, + const char *data, size_t len, int die_on_error) +{ + /* We only check for UTF here as UTF?? can be an alias for UTF-?? */ + if (istarts_with(enc, "UTF")) { + /* + * Check for detectable errors in UTF encodings + */ + if (has_prohibited_utf_bom(enc, data, len)) { + const char *error_msg = _( + "BOM is prohibited in '%s' if encoded as %s"); + /* + * This advice is shown for UTF-??BE and UTF-??LE encodings. + * We cut off the last two characters of the encoding name + * to generate the encoding name suitable for BOMs. + */ + const char *advise_msg = _( + "The file '%s' contains a byte order " + "mark (BOM). Please use UTF-%s as " + "working-tree-encoding."); + const char *stripped = NULL; + char *upper = xstrdup_toupper(enc); + upper[strlen(upper)-2] = '\0'; + if (!skip_prefix(upper, "UTF-", &stripped)) + skip_prefix(stripped, "UTF", &stripped); + advise(advise_msg, path, stripped); + free(upper); + if (die_on_error) + die(error_msg, path, enc); + else { + return error(error_msg, path, enc); + } + + } else if (is_missing_required_utf_bom(enc, data, len)) { + const char *error_msg = _( + "BOM is required in '%s' if encoded as %s"); + const char *advise_msg = _( + "The file '%s' is missing a byte order " + "mark (BOM). Please use UTF-%sBE or UTF-%sLE " + "(depending on the byte order) as " + "working-tree-encoding."); + const char *stripped = NULL; + char *upper = xstrdup_toupper(enc); + if (!skip_prefix(upper, "UTF-", &stripped)) + skip_prefix(stripped, "UTF", &stripped); + advise(advise_msg, path, stripped, stripped); + free(upper); + if (die_on_error) + die(error_msg, path, enc); + else { + return error(error_msg, path, enc); + } + } + + } + return 0; +} + +static void trace_encoding(const char *context, const char *path, + const char *encoding, const char *buf, size_t len) +{ + static struct trace_key coe = TRACE_KEY_INIT(WORKING_TREE_ENCODING); + struct strbuf trace = STRBUF_INIT; + int i; + + strbuf_addf(&trace, "%s (%s, considered %s):\n", context, path, encoding); + for (i = 0; i < len && buf; ++i) { + strbuf_addf( + &trace,"| \e[2m%2i:\e[0m %2x \e[2m%c\e[0m%c", + i, + (unsigned char) buf[i], + (buf[i] > 32 && buf[i] < 127 ? buf[i] : ' '), + ((i+1) % 8 && (i+1) < len ? ' ' : '\n') + ); + } + strbuf_addchars(&trace, '\n', 1); + + trace_strbuf(&coe, &trace); + strbuf_release(&trace); +} + +static int check_roundtrip(const char *enc_name) +{ + /* + * check_roundtrip_encoding contains a string of comma and/or + * space separated encodings (eg. "UTF-16, ASCII, CP1125"). + * Search for the given encoding in that string. + */ + const char *found = strcasestr(check_roundtrip_encoding, enc_name); + const char *next; + int len; + if (!found) + return 0; + next = found + strlen(enc_name); + len = strlen(check_roundtrip_encoding); + return (found && ( + /* + * check that the found encoding is at the + * beginning of check_roundtrip_encoding or + * that it is prefixed with a space or comma + */ + found == check_roundtrip_encoding || ( + (isspace(found[-1]) || found[-1] == ',') + ) + ) && ( + /* + * check that the found encoding is at the + * end of check_roundtrip_encoding or + * that it is suffixed with a space or comma + */ + next == check_roundtrip_encoding + len || ( + next < check_roundtrip_encoding + len && + (isspace(next[0]) || next[0] == ',') + ) + )); +} + +static const char *default_encoding = "UTF-8"; + +static int encode_to_git(const char *path, const char *src, size_t src_len, + struct strbuf *buf, const char *enc, int conv_flags) +{ + char *dst; + int dst_len; + int die_on_error = conv_flags & CONV_WRITE_OBJECT; + + /* + * No encoding is specified or there is nothing to encode. + * Tell the caller that the content was not modified. + */ + if (!enc || (src && !src_len)) + return 0; + + /* + * Looks like we got called from "would_convert_to_git()". + * This means Git wants to know if it would encode (= modify!) + * the content. Let's answer with "yes", since an encoding was + * specified. + */ + if (!buf && !src) + return 1; + + if (validate_encoding(path, enc, src, src_len, die_on_error)) + return 0; + + trace_encoding("source", path, enc, src, src_len); + dst = reencode_string_len(src, src_len, default_encoding, enc, + &dst_len); + if (!dst) { + /* + * We could add the blob "as-is" to Git. However, on checkout + * we would try to reencode to the original encoding. This + * would fail and we would leave the user with a messed-up + * working tree. Let's try to avoid this by screaming loud. + */ + const char* msg = _("failed to encode '%s' from %s to %s"); + if (die_on_error) + die(msg, path, enc, default_encoding); + else { + error(msg, path, enc, default_encoding); + return 0; + } + } + trace_encoding("destination", path, default_encoding, dst, dst_len); + + /* + * UTF supports lossless conversion round tripping [1] and conversions + * between UTF and other encodings are mostly round trip safe as + * Unicode aims to be a superset of all other character encodings. + * However, certain encodings (e.g. SHIFT-JIS) are known to have round + * trip issues [2]. Check the round trip conversion for all encodings + * listed in core.checkRoundtripEncoding. + * + * The round trip check is only performed if content is written to Git. + * This ensures that no information is lost during conversion to/from + * the internal UTF-8 representation. + * + * Please note, the code below is not tested because I was not able to + * generate a faulty round trip without an iconv error. Iconv errors + * are already caught above. + * + * [1] http://unicode.org/faq/utf_bom.html#gen2 + * [2] https://support.microsoft.com/en-us/help/170559/prb-conversion-problem-between-shift-jis-and-unicode + */ + if (die_on_error && check_roundtrip(enc)) { + char *re_src; + int re_src_len; + + re_src = reencode_string_len(dst, dst_len, + enc, default_encoding, + &re_src_len); + + trace_printf("Checking roundtrip encoding for %s...\n", enc); + trace_encoding("reencoded source", path, enc, + re_src, re_src_len); + + if (!re_src || src_len != re_src_len || + memcmp(src, re_src, src_len)) { + const char* msg = _("encoding '%s' from %s to %s and " + "back is not the same"); + die(msg, path, enc, default_encoding); + } + + free(re_src); + } + + strbuf_attach(buf, dst, dst_len, dst_len + 1); + return 1; +} + +static int encode_to_worktree(const char *path, const char *src, size_t src_len, + struct strbuf *buf, const char *enc) +{ + char *dst; + int dst_len; + + /* + * No encoding is specified or there is nothing to encode. + * Tell the caller that the content was not modified. + */ + if (!enc || (src && !src_len)) + return 0; + + dst = reencode_string_len(src, src_len, enc, default_encoding, + &dst_len); + if (!dst) { + error("failed to encode '%s' from %s to %s", + path, default_encoding, enc); + return 0; + } + + strbuf_attach(buf, dst, dst_len, dst_len + 1); + return 1; +} + static int crlf_to_git(const struct index_state *istate, const char *path, const char *src, size_t len, struct strbuf *buf, @@ -978,6 +1214,24 @@ static int ident_to_worktree(const char *path, const char *src, size_t len, return 1; } +static const char *git_path_check_encoding(struct attr_check_item *check) +{ + const char *value = check->value; + + if (ATTR_UNSET(value) || !strlen(value)) + return NULL; + + if (ATTR_TRUE(value) || ATTR_FALSE(value)) { + die(_("true/false are no valid working-tree-encodings")); + } + + /* Don't encode to the default encoding */ + if (same_encoding(value, default_encoding)) + return NULL; + + return value; +} + static enum crlf_action git_path_check_crlf(struct attr_check_item *check) { const char *value = check->value; @@ -1033,6 +1287,7 @@ struct conv_attrs { enum crlf_action attr_action; /* What attr says */ enum crlf_action crlf_action; /* When no attr is set, use core.autocrlf */ int ident; + const char *working_tree_encoding; /* Supported encoding or default encoding if NULL */ }; static void convert_attrs(struct conv_attrs *ca, const char *path) @@ -1041,7 +1296,8 @@ static void convert_attrs(struct conv_attrs *ca, const char *path) if (!check) { check = attr_check_initl("crlf", "ident", "filter", - "eol", "text", NULL); + "eol", "text", "working-tree-encoding", + NULL); user_convert_tail = &user_convert; git_config(read_convert_config, NULL); } @@ -1064,6 +1320,7 @@ static void convert_attrs(struct conv_attrs *ca, const char *path) else if (eol_attr == EOL_CRLF) ca->crlf_action = CRLF_TEXT_CRLF; } + ca->working_tree_encoding = git_path_check_encoding(ccheck + 5); } else { ca->drv = NULL; ca->crlf_action = CRLF_UNDEFINED; @@ -1144,6 +1401,13 @@ int convert_to_git(const struct index_state *istate, src = dst->buf; len = dst->len; } + + ret |= encode_to_git(path, src, len, dst, ca.working_tree_encoding, conv_flags); + if (ret && dst) { + src = dst->buf; + len = dst->len; + } + if (!(conv_flags & CONV_EOL_KEEP_CRLF)) { ret |= crlf_to_git(istate, path, src, len, dst, ca.crlf_action, conv_flags); if (ret && dst) { @@ -1167,6 +1431,7 @@ void convert_to_git_filter_fd(const struct index_state *istate, if (!apply_filter(path, NULL, 0, fd, dst, ca.drv, CAP_CLEAN, NULL)) die("%s: clean filter '%s' failed", path, ca.drv->name); + encode_to_git(path, dst->buf, dst->len, dst, ca.working_tree_encoding, conv_flags); crlf_to_git(istate, path, dst->buf, dst->len, dst, ca.crlf_action, conv_flags); ident_to_git(path, dst->buf, dst->len, dst, ca.ident); } @@ -1198,6 +1463,12 @@ static int convert_to_working_tree_internal(const char *path, const char *src, } } + ret |= encode_to_worktree(path, src, len, dst, ca.working_tree_encoding); + if (ret) { + src = dst->buf; + len = dst->len; + } + ret_filter = apply_filter( path, src, len, -1, dst, ca.drv, CAP_SMUDGE, dco); if (!ret_filter && ca.drv && ca.drv->required) @@ -1664,6 +1935,9 @@ struct stream_filter *get_stream_filter(const char *path, const struct object_id if (ca.drv && (ca.drv->process || ca.drv->smudge || ca.drv->clean)) return NULL; + if (ca.working_tree_encoding) + return NULL; + if (ca.crlf_action == CRLF_AUTO || ca.crlf_action == CRLF_AUTO_CRLF) return NULL; @@ -12,6 +12,7 @@ struct index_state; #define CONV_EOL_RNDTRP_WARN (1<<1) /* Warn if CRLF to LF to CRLF is different */ #define CONV_EOL_RENORMALIZE (1<<2) /* Convert CRLF to LF */ #define CONV_EOL_KEEP_CRLF (1<<3) /* Keep CRLF line endings as is */ +#define CONV_WRITE_OBJECT (1<<4) /* Content is written to the index */ extern int global_conv_flags_eol; @@ -55,6 +56,7 @@ struct delayed_checkout { }; extern enum eol core_eol; +extern char *check_roundtrip_encoding; extern const char *get_cached_convert_stats_ascii(const struct index_state *istate, const char *path); extern const char *get_wt_convert_stats_ascii(const char *path); diff --git a/csum-file.c b/csum-file.c index 5eda7fb6af..53ce37f7ca 100644 --- a/csum-file.c +++ b/csum-file.c @@ -53,7 +53,7 @@ void hashflush(struct hashfile *f) } } -int hashclose(struct hashfile *f, unsigned char *result, unsigned int flags) +int finalize_hashfile(struct hashfile *f, unsigned char *result, unsigned int flags) { int fd; @@ -61,11 +61,11 @@ int hashclose(struct hashfile *f, unsigned char *result, unsigned int flags) the_hash_algo->final_fn(f->buffer, &f->ctx); if (result) hashcpy(result, f->buffer); - if (flags & (CSUM_CLOSE | CSUM_FSYNC)) { - /* write checksum and close fd */ + if (flags & CSUM_HASH_IN_STREAM) flush(f, f->buffer, the_hash_algo->rawsz); - if (flags & CSUM_FSYNC) - fsync_or_die(f->fd, f->name); + if (flags & CSUM_FSYNC) + fsync_or_die(f->fd, f->name); + if (flags & CSUM_CLOSE) { if (close(f->fd)) die_errno("%s: sha1 file error on close", f->name); fd = 0; diff --git a/csum-file.h b/csum-file.h index 992e5c0141..c5a2e335e7 100644 --- a/csum-file.h +++ b/csum-file.h @@ -26,14 +26,15 @@ struct hashfile_checkpoint { extern void hashfile_checkpoint(struct hashfile *, struct hashfile_checkpoint *); extern int hashfile_truncate(struct hashfile *, struct hashfile_checkpoint *); -/* hashclose flags */ -#define CSUM_CLOSE 1 -#define CSUM_FSYNC 2 +/* finalize_hashfile flags */ +#define CSUM_CLOSE 1 +#define CSUM_FSYNC 2 +#define CSUM_HASH_IN_STREAM 4 extern struct hashfile *hashfd(int fd, const char *name); extern struct hashfile *hashfd_check(const char *name); extern struct hashfile *hashfd_throughput(int fd, const char *name, struct progress *tp); -extern int hashclose(struct hashfile *, unsigned char *, unsigned int); +extern int finalize_hashfile(struct hashfile *, unsigned char *, unsigned int); extern void hashwrite(struct hashfile *, const void *, unsigned int); extern void hashflush(struct hashfile *f); extern void crc32_begin(struct hashfile *); diff --git a/detect-compiler b/detect-compiler new file mode 100755 index 0000000000..70b754481c --- /dev/null +++ b/detect-compiler @@ -0,0 +1,53 @@ +#!/bin/sh +# +# Probe the compiler for vintage, version, etc. This is used for setting +# optional make knobs under the DEVELOPER knob. + +CC="$*" + +# we get something like (this is at least true for gcc and clang) +# +# FreeBSD clang version 3.4.1 (tags/RELEASE...) +get_version_line() { + $CC -v 2>&1 | grep ' version ' +} + +get_family() { + get_version_line | sed 's/^\(.*\) version [0-9][^ ]* .*/\1/' +} + +get_version() { + get_version_line | sed 's/^.* version \([0-9][^ ]*\) .*/\1/' +} + +print_flags() { + family=$1 + version=$(get_version | cut -f 1 -d .) + + # Print a feature flag not only for the current version, but also + # for any prior versions we encompass. This avoids needing to do + # numeric comparisons in make, which are awkward. + while test "$version" -gt 0 + do + echo $family$version + version=$((version - 1)) + done +} + +case "$(get_family)" in +gcc) + print_flags gcc + ;; +clang) + print_flags clang + ;; +"FreeBSD clang") + print_flags clang + ;; +"Apple LLVM") + print_flags clang + ;; +*) + : unknown compiler family + ;; +esac @@ -177,7 +177,7 @@ static int parse_submodule_params(struct diff_options *options, const char *valu return 0; } -static int git_config_rename(const char *var, const char *value) +int git_config_rename(const char *var, const char *value) { if (!value) return DIFF_DETECT_RENAME; @@ -3638,7 +3638,8 @@ int diff_populate_filespec(struct diff_filespec *s, unsigned int flags) else { enum object_type type; if (size_only || (flags & CHECK_BINARY)) { - type = oid_object_info(&s->oid, &s->size); + type = oid_object_info(the_repository, &s->oid, + &s->size); if (type < 0) die("unable to read %s", oid_to_hex(&s->oid)); @@ -324,6 +324,7 @@ extern int git_diff_ui_config(const char *var, const char *value, void *cb); extern void diff_setup(struct diff_options *); extern int diff_opt_parse(struct diff_options *, const char **, int, const char *); extern void diff_setup_done(struct diff_options *); +extern int git_config_rename(const char *var, const char *value); #define DIFF_DETECT_RENAME 1 #define DIFF_DETECT_COPY 2 @@ -19,6 +19,7 @@ #include "varint.h" #include "ewah/ewok.h" #include "fsmonitor.h" +#include "submodule-config.h" /* * Tells read_directory_recursive how a file or directory should be treated. @@ -2992,7 +2993,7 @@ void untracked_cache_invalidate_path(struct index_state *istate, { if (!istate->untracked || !istate->untracked->root) return; - if (!safe_path && !verify_path(path)) + if (!safe_path && !verify_path(path, 0)) return; invalidate_one_component(istate->untracked, istate->untracked->root, path, strlen(path)); @@ -3010,8 +3011,57 @@ void untracked_cache_add_to_index(struct index_state *istate, untracked_cache_invalidate_path(istate, path, 1); } -/* Update gitfile and core.worktree setting to connect work tree and git dir */ -void connect_work_tree_and_git_dir(const char *work_tree_, const char *git_dir_) +static void connect_wt_gitdir_in_nested(const char *sub_worktree, + const char *sub_gitdir) +{ + int i; + struct repository subrepo; + struct strbuf sub_wt = STRBUF_INIT; + struct strbuf sub_gd = STRBUF_INIT; + + const struct submodule *sub; + + /* If the submodule has no working tree, we can ignore it. */ + if (repo_init(&subrepo, sub_gitdir, sub_worktree)) + return; + + if (repo_read_index(&subrepo) < 0) + die("index file corrupt in repo %s", subrepo.gitdir); + + for (i = 0; i < subrepo.index->cache_nr; i++) { + const struct cache_entry *ce = subrepo.index->cache[i]; + + if (!S_ISGITLINK(ce->ce_mode)) + continue; + + while (i + 1 < subrepo.index->cache_nr && + !strcmp(ce->name, subrepo.index->cache[i + 1]->name)) + /* + * Skip entries with the same name in different stages + * to make sure an entry is returned only once. + */ + i++; + + sub = submodule_from_path(&subrepo, &null_oid, ce->name); + if (!sub || !is_submodule_active(&subrepo, ce->name)) + /* .gitmodules broken or inactive sub */ + continue; + + strbuf_reset(&sub_wt); + strbuf_reset(&sub_gd); + strbuf_addf(&sub_wt, "%s/%s", sub_worktree, sub->path); + strbuf_addf(&sub_gd, "%s/modules/%s", sub_gitdir, sub->name); + + connect_work_tree_and_git_dir(sub_wt.buf, sub_gd.buf, 1); + } + strbuf_release(&sub_wt); + strbuf_release(&sub_gd); + repo_clear(&subrepo); +} + +void connect_work_tree_and_git_dir(const char *work_tree_, + const char *git_dir_, + int recurse_into_nested) { struct strbuf gitfile_sb = STRBUF_INIT; struct strbuf cfg_sb = STRBUF_INIT; @@ -3041,6 +3091,10 @@ void connect_work_tree_and_git_dir(const char *work_tree_, const char *git_dir_) strbuf_release(&gitfile_sb); strbuf_release(&cfg_sb); strbuf_release(&rel_path); + + if (recurse_into_nested) + connect_wt_gitdir_in_nested(work_tree, git_dir); + free(work_tree); free(git_dir); } @@ -3054,5 +3108,5 @@ void relocate_gitdir(const char *path, const char *old_git_dir, const char *new_ die_errno(_("could not migrate git directory from '%s' to '%s'"), old_git_dir, new_git_dir); - connect_work_tree_and_git_dir(path, new_git_dir); + connect_work_tree_and_git_dir(path, new_git_dir, 0); } @@ -359,7 +359,17 @@ struct untracked_cache *read_untracked_extension(const void *data, unsigned long void write_untracked_extension(struct strbuf *out, struct untracked_cache *untracked); void add_untracked_cache(struct index_state *istate); void remove_untracked_cache(struct index_state *istate); -extern void connect_work_tree_and_git_dir(const char *work_tree, const char *git_dir); + +/* + * Connect a worktree to a git directory by creating (or overwriting) a + * '.git' file containing the location of the git directory. In the git + * directory set the core.worktree setting to indicate where the worktree is. + * When `recurse_into_nested` is set, recurse into any nested submodules, + * connecting them as well. + */ +extern void connect_work_tree_and_git_dir(const char *work_tree, + const char *git_dir, + int recurse_into_nested); extern void relocate_gitdir(const char *path, const char *old_git_dir, const char *new_git_dir); diff --git a/environment.c b/environment.c index fd970b81bd..2a6de2330b 100644 --- a/environment.c +++ b/environment.c @@ -51,10 +51,11 @@ const char *editor_program; const char *askpass_program; const char *excludes_file; enum auto_crlf auto_crlf = AUTO_CRLF_FALSE; -int check_replace_refs = 1; +int check_replace_refs = 1; /* NEEDSWORK: rename to read_replace_refs */ char *git_replace_ref_base; enum eol core_eol = EOL_UNSET; int global_conv_flags_eol = CONV_EOL_RNDTRP_WARN; +char *check_roundtrip_encoding = "SHIFT-JIS"; unsigned whitespace_rule_cfg = WS_DEFAULT_RULE; enum branch_track git_branch_track = BRANCH_TRACK_REMOTE; enum rebase_setup_type autorebase = AUTOREBASE_NEVER; @@ -65,6 +66,7 @@ enum push_default_type push_default = PUSH_DEFAULT_UNSPECIFIED; enum object_creation_mode object_creation_mode = OBJECT_CREATION_MODE; char *notes_ref_name; int grafts_replace_parents = 1; +int core_commit_graph; int core_apply_sparse_checkout; int merge_log_config = -1; int precomposed_unicode = -1; /* see probe_utf8_pathname_composition() */ diff --git a/exec-cmd.c b/exec-cmd.c index 8a8261746a..02d31ee897 100644 --- a/exec-cmd.c +++ b/exec-cmd.c @@ -2,25 +2,53 @@ #include "exec-cmd.h" #include "quote.h" #include "argv-array.h" -#define MAX_ARGS 32 -static const char *argv_exec_path; +#if defined(RUNTIME_PREFIX) + +#if defined(HAVE_NS_GET_EXECUTABLE_PATH) +#include <mach-o/dyld.h> +#endif + +#if defined(HAVE_BSD_KERN_PROC_SYSCTL) +#include <sys/param.h> +#include <sys/types.h> +#include <sys/sysctl.h> +#endif + +#endif /* RUNTIME_PREFIX */ + +#define MAX_ARGS 32 + +static const char *system_prefix(void); #ifdef RUNTIME_PREFIX -static const char *argv0_path; + +/** + * When using a runtime prefix, Git dynamically resolves paths relative to its + * executable. + * + * The method for determining the path of the executable is highly + * platform-specific. + */ + +/** + * Path to the current Git executable. Resolved on startup by + * 'git_resolve_executable_dir'. + */ +static const char *executable_dirname; static const char *system_prefix(void) { static const char *prefix; - assert(argv0_path); - assert(is_absolute_path(argv0_path)); + assert(executable_dirname); + assert(is_absolute_path(executable_dirname)); if (!prefix && - !(prefix = strip_path_suffix(argv0_path, GIT_EXEC_PATH)) && - !(prefix = strip_path_suffix(argv0_path, BINDIR)) && - !(prefix = strip_path_suffix(argv0_path, "git"))) { - prefix = PREFIX; + !(prefix = strip_path_suffix(executable_dirname, GIT_EXEC_PATH)) && + !(prefix = strip_path_suffix(executable_dirname, BINDIR)) && + !(prefix = strip_path_suffix(executable_dirname, "git"))) { + prefix = FALLBACK_RUNTIME_PREFIX; trace_printf("RUNTIME_PREFIX requested, " "but prefix computation failed. " "Using static fallback '%s'.\n", prefix); @@ -28,27 +56,201 @@ static const char *system_prefix(void) return prefix; } -void git_extract_argv0_path(const char *argv0) +/* + * Resolves the executable path from argv[0], only if it is absolute. + * + * Returns 0 on success, -1 on failure. + */ +static int git_get_exec_path_from_argv0(struct strbuf *buf, const char *argv0) { const char *slash; if (!argv0 || !*argv0) - return; + return -1; slash = find_last_dir_sep(argv0); + if (slash) { + trace_printf("trace: resolved executable path from argv0: %s\n", + argv0); + strbuf_add_absolute_path(buf, argv0); + return 0; + } + return -1; +} + +#ifdef PROCFS_EXECUTABLE_PATH +/* + * Resolves the executable path by examining a procfs symlink. + * + * Returns 0 on success, -1 on failure. + */ +static int git_get_exec_path_procfs(struct strbuf *buf) +{ + if (strbuf_realpath(buf, PROCFS_EXECUTABLE_PATH, 0)) { + trace_printf( + "trace: resolved executable path from procfs: %s\n", + buf->buf); + return 0; + } + return -1; +} +#endif /* PROCFS_EXECUTABLE_PATH */ + +#ifdef HAVE_BSD_KERN_PROC_SYSCTL +/* + * Resolves the executable path using KERN_PROC_PATHNAME BSD sysctl. + * + * Returns 0 on success, -1 on failure. + */ +static int git_get_exec_path_bsd_sysctl(struct strbuf *buf) +{ + int mib[4]; + char path[MAXPATHLEN]; + size_t cb = sizeof(path); + + mib[0] = CTL_KERN; + mib[1] = KERN_PROC; + mib[2] = KERN_PROC_PATHNAME; + mib[3] = -1; + if (!sysctl(mib, 4, path, &cb, NULL, 0)) { + trace_printf( + "trace: resolved executable path from sysctl: %s\n", + path); + strbuf_addstr(buf, path); + return 0; + } + return -1; +} +#endif /* HAVE_BSD_KERN_PROC_SYSCTL */ + +#ifdef HAVE_NS_GET_EXECUTABLE_PATH +/* + * Resolves the executable path by querying Darwin application stack. + * + * Returns 0 on success, -1 on failure. + */ +static int git_get_exec_path_darwin(struct strbuf *buf) +{ + char path[PATH_MAX]; + uint32_t size = sizeof(path); + if (!_NSGetExecutablePath(path, &size)) { + trace_printf( + "trace: resolved executable path from Darwin stack: %s\n", + path); + strbuf_addstr(buf, path); + return 0; + } + return -1; +} +#endif /* HAVE_NS_GET_EXECUTABLE_PATH */ + +#ifdef HAVE_WPGMPTR +/* + * Resolves the executable path by using the global variable _wpgmptr. + * + * Returns 0 on success, -1 on failure. + */ +static int git_get_exec_path_wpgmptr(struct strbuf *buf) +{ + int len = wcslen(_wpgmptr) * 3 + 1; + strbuf_grow(buf, len); + len = xwcstoutf(buf->buf, _wpgmptr, len); + if (len < 0) + return -1; + buf->len += len; + return 0; +} +#endif /* HAVE_WPGMPTR */ + +/* + * Resolves the absolute path of the current executable. + * + * Returns 0 on success, -1 on failure. + */ +static int git_get_exec_path(struct strbuf *buf, const char *argv0) +{ + /* + * Identifying the executable path is operating system specific. + * Selectively employ all available methods in order of preference, + * preferring highly-available authoritative methods over + * selectively-available or non-authoritative methods. + * + * All cases fall back on resolving against argv[0] if there isn't a + * better functional method. However, note that argv[0] can be + * used-supplied on many operating systems, and is not authoritative + * in those cases. + * + * Each of these functions returns 0 on success, so evaluation will stop + * after the first successful method. + */ + if ( +#ifdef HAVE_BSD_KERN_PROC_SYSCTL + git_get_exec_path_bsd_sysctl(buf) && +#endif /* HAVE_BSD_KERN_PROC_SYSCTL */ + +#ifdef HAVE_NS_GET_EXECUTABLE_PATH + git_get_exec_path_darwin(buf) && +#endif /* HAVE_NS_GET_EXECUTABLE_PATH */ + +#ifdef PROCFS_EXECUTABLE_PATH + git_get_exec_path_procfs(buf) && +#endif /* PROCFS_EXECUTABLE_PATH */ + +#ifdef HAVE_WPGMPTR + git_get_exec_path_wpgmptr(buf) && +#endif /* HAVE_WPGMPTR */ + + git_get_exec_path_from_argv0(buf, argv0)) { + return -1; + } + + if (strbuf_normalize_path(buf)) { + trace_printf("trace: could not normalize path: %s\n", buf->buf); + return -1; + } + + return 0; +} +void git_resolve_executable_dir(const char *argv0) +{ + struct strbuf buf = STRBUF_INIT; + char *resolved; + const char *slash; + + if (git_get_exec_path(&buf, argv0)) { + trace_printf( + "trace: could not determine executable path from: %s\n", + argv0); + strbuf_release(&buf); + return; + } + + resolved = strbuf_detach(&buf, NULL); + slash = find_last_dir_sep(resolved); if (slash) - argv0_path = xstrndup(argv0, slash - argv0); + resolved[slash - resolved] = '\0'; + + executable_dirname = resolved; + trace_printf("trace: resolved executable dir: %s\n", + executable_dirname); } #else +/* + * When not using a runtime prefix, Git uses a hard-coded path. + */ static const char *system_prefix(void) { - return PREFIX; + return FALLBACK_RUNTIME_PREFIX; } -void git_extract_argv0_path(const char *argv0) +/* + * This is called during initialization, but No work needs to be done here when + * runtime prefix is not being used. + */ +void git_resolve_executable_dir(const char *argv0) { } @@ -65,32 +267,28 @@ char *system_path(const char *path) return strbuf_detach(&d, NULL); } -void git_set_argv_exec_path(const char *exec_path) +static const char *exec_path_value; + +void git_set_exec_path(const char *exec_path) { - argv_exec_path = exec_path; + exec_path_value = exec_path; /* * Propagate this setting to external programs. */ setenv(EXEC_PATH_ENVIRONMENT, exec_path, 1); } - -/* Returns the highest-priority, location to look for git programs. */ +/* Returns the highest-priority location to look for git programs. */ const char *git_exec_path(void) { - static char *cached_exec_path; - - if (argv_exec_path) - return argv_exec_path; - - if (!cached_exec_path) { + if (!exec_path_value) { const char *env = getenv(EXEC_PATH_ENVIRONMENT); if (env && *env) - cached_exec_path = xstrdup(env); + exec_path_value = xstrdup(env); else - cached_exec_path = system_path(GIT_EXEC_PATH); + exec_path_value = system_path(GIT_EXEC_PATH); } - return cached_exec_path; + return exec_path_value; } static void add_path(struct strbuf *out, const char *path) @@ -103,10 +301,12 @@ static void add_path(struct strbuf *out, const char *path) void setup_path(void) { + const char *exec_path = git_exec_path(); const char *old_path = getenv("PATH"); struct strbuf new_path = STRBUF_INIT; - add_path(&new_path, git_exec_path()); + git_set_exec_path(exec_path); + add_path(&new_path, exec_path); if (old_path) strbuf_addstr(&new_path, old_path); @@ -125,7 +325,8 @@ const char **prepare_git_cmd(struct argv_array *out, const char **argv) return out->argv; } -int execv_git_cmd(const char **argv) { +int execv_git_cmd(const char **argv) +{ struct argv_array nargv = ARGV_ARRAY_INIT; prepare_git_cmd(&nargv, argv); @@ -140,8 +341,7 @@ int execv_git_cmd(const char **argv) { return -1; } - -int execl_git_cmd(const char *cmd,...) +int execl_git_cmd(const char *cmd, ...) { int argc; const char *argv[MAX_ARGS + 1]; diff --git a/exec-cmd.h b/exec-cmd.h index ff0b48048a..2522453cda 100644 --- a/exec-cmd.h +++ b/exec-cmd.h @@ -3,8 +3,8 @@ struct argv_array; -extern void git_set_argv_exec_path(const char *exec_path); -extern void git_extract_argv0_path(const char *path); +extern void git_set_exec_path(const char *exec_path); +extern void git_resolve_executable_dir(const char *path); extern const char *git_exec_path(void); extern void setup_path(void); extern const char **prepare_git_cmd(struct argv_array *out, const char **argv); diff --git a/fast-import.c b/fast-import.c index 05d1079d23..4d55910ab9 100644 --- a/fast-import.c +++ b/fast-import.c @@ -973,7 +973,7 @@ static void end_packfile(void) struct tag *t; close_pack_windows(pack_data); - hashclose(pack_file, cur_pack_oid.hash, 0); + finalize_hashfile(pack_file, cur_pack_oid.hash, 0); fixup_pack_header_footer(pack_data->pack_fd, pack_data->sha1, pack_data->pack_name, object_count, cur_pack_oid.hash, pack_size); @@ -1331,7 +1331,7 @@ static void *gfi_unpack_entry( */ p->pack_size = pack_size + the_hash_algo->rawsz; } - return unpack_entry(p, oe->idx.offset, &type, sizep); + return unpack_entry(the_repository, p, oe->idx.offset, &type, sizep); } static const char *get_mode(const char *str, uint16_t *modep) @@ -1817,7 +1817,7 @@ static void dump_marks_helper(FILE *f, static void dump_marks(void) { - static struct lock_file mark_lock; + struct lock_file mark_lock = LOCK_INIT; FILE *f; if (!export_marks_file || (import_marks_file && !import_marks_file_done)) @@ -1872,7 +1872,8 @@ static void read_marks(void) die("corrupt mark line: %s", line); e = find_object(&oid); if (!e) { - enum object_type type = oid_object_info(&oid, NULL); + enum object_type type = oid_object_info(the_repository, + &oid, NULL); if (type < 0) die("object not found: %s", oid_to_hex(&oid)); e = insert_object(&oid); @@ -2402,7 +2403,8 @@ static void file_change_m(const char *p, struct branch *b) enum object_type expected = S_ISDIR(mode) ? OBJ_TREE: OBJ_BLOB; enum object_type type = oe ? oe->type : - oid_object_info(&oid, NULL); + oid_object_info(the_repository, &oid, + NULL); if (type < 0) die("%s not found: %s", S_ISDIR(mode) ? "Tree" : "Blob", @@ -2563,7 +2565,8 @@ static void note_change_n(const char *p, struct branch *b, unsigned char *old_fa die("Not a blob (actually a %s): %s", type_name(oe->type), command_buf.buf); } else if (!is_null_oid(&oid)) { - enum object_type type = oid_object_info(&oid, NULL); + enum object_type type = oid_object_info(the_repository, &oid, + NULL); if (type < 0) die("Blob not found: %s", command_buf.buf); if (type != OBJ_BLOB) @@ -2850,7 +2853,7 @@ static void parse_new_tag(const char *arg) } else if (!get_oid(from, &oid)) { struct object_entry *oe = find_object(&oid); if (!oe) { - type = oid_object_info(&oid, NULL); + type = oid_object_info(the_repository, &oid, NULL); if (type < 0) die("Not a valid object: %s", from); } else @@ -3008,7 +3011,8 @@ static struct object_entry *dereference(struct object_entry *oe, unsigned long size; char *buf = NULL; if (!oe) { - enum object_type type = oid_object_info(oid, NULL); + enum object_type type = oid_object_info(the_repository, oid, + NULL); if (type < 0) die("object not found: %s", oid_to_hex(oid)); /* cache it! */ diff --git a/fetch-pack.c b/fetch-pack.c index 4a8bad8487..490c38f833 100644 --- a/fetch-pack.c +++ b/fetch-pack.c @@ -305,9 +305,9 @@ static void insert_one_alternate_object(struct object *obj) #define PIPESAFE_FLUSH 32 #define LARGE_FLUSH 16384 -static int next_flush(struct fetch_pack_args *args, int count) +static int next_flush(int stateless_rpc, int count) { - if (args->stateless_rpc) { + if (stateless_rpc) { if (count < LARGE_FLUSH) count <<= 1; else @@ -470,7 +470,7 @@ static int find_common(struct fetch_pack_args *args, send_request(args, fd[1], &req_buf); strbuf_setlen(&req_buf, state_len); flushes++; - flush_at = next_flush(args, count); + flush_at = next_flush(args->stateless_rpc, count); /* * We keep one window "ahead" of the other side, and @@ -1080,6 +1080,335 @@ static struct ref *do_fetch_pack(struct fetch_pack_args *args, return ref; } +static void add_shallow_requests(struct strbuf *req_buf, + const struct fetch_pack_args *args) +{ + if (is_repository_shallow()) + write_shallow_commits(req_buf, 1, NULL); + if (args->depth > 0) + packet_buf_write(req_buf, "deepen %d", args->depth); + if (args->deepen_since) { + timestamp_t max_age = approxidate(args->deepen_since); + packet_buf_write(req_buf, "deepen-since %"PRItime, max_age); + } + if (args->deepen_not) { + int i; + for (i = 0; i < args->deepen_not->nr; i++) { + struct string_list_item *s = args->deepen_not->items + i; + packet_buf_write(req_buf, "deepen-not %s", s->string); + } + } +} + +static void add_wants(const struct ref *wants, struct strbuf *req_buf) +{ + for ( ; wants ; wants = wants->next) { + const struct object_id *remote = &wants->old_oid; + const char *remote_hex; + struct object *o; + + /* + * If that object is complete (i.e. it is an ancestor of a + * local ref), we tell them we have it but do not have to + * tell them about its ancestors, which they already know + * about. + * + * We use lookup_object here because we are only + * interested in the case we *know* the object is + * reachable and we have already scanned it. + */ + if (((o = lookup_object(remote->hash)) != NULL) && + (o->flags & COMPLETE)) { + continue; + } + + remote_hex = oid_to_hex(remote); + packet_buf_write(req_buf, "want %s\n", remote_hex); + } +} + +static void add_common(struct strbuf *req_buf, struct oidset *common) +{ + struct oidset_iter iter; + const struct object_id *oid; + oidset_iter_init(common, &iter); + + while ((oid = oidset_iter_next(&iter))) { + packet_buf_write(req_buf, "have %s\n", oid_to_hex(oid)); + } +} + +static int add_haves(struct strbuf *req_buf, int *haves_to_send, int *in_vain) +{ + int ret = 0; + int haves_added = 0; + const struct object_id *oid; + + while ((oid = get_rev())) { + packet_buf_write(req_buf, "have %s\n", oid_to_hex(oid)); + if (++haves_added >= *haves_to_send) + break; + } + + *in_vain += haves_added; + if (!haves_added || *in_vain >= MAX_IN_VAIN) { + /* Send Done */ + packet_buf_write(req_buf, "done\n"); + ret = 1; + } + + /* Increase haves to send on next round */ + *haves_to_send = next_flush(1, *haves_to_send); + + return ret; +} + +static int send_fetch_request(int fd_out, const struct fetch_pack_args *args, + const struct ref *wants, struct oidset *common, + int *haves_to_send, int *in_vain) +{ + int ret = 0; + struct strbuf req_buf = STRBUF_INIT; + + if (server_supports_v2("fetch", 1)) + packet_buf_write(&req_buf, "command=fetch"); + if (server_supports_v2("agent", 0)) + packet_buf_write(&req_buf, "agent=%s", git_user_agent_sanitized()); + if (args->server_options && args->server_options->nr && + server_supports_v2("server-option", 1)) { + int i; + for (i = 0; i < args->server_options->nr; i++) + packet_write_fmt(fd_out, "server-option=%s", + args->server_options->items[i].string); + } + + packet_buf_delim(&req_buf); + if (args->use_thin_pack) + packet_buf_write(&req_buf, "thin-pack"); + if (args->no_progress) + packet_buf_write(&req_buf, "no-progress"); + if (args->include_tag) + packet_buf_write(&req_buf, "include-tag"); + if (prefer_ofs_delta) + packet_buf_write(&req_buf, "ofs-delta"); + + /* Add shallow-info and deepen request */ + if (server_supports_feature("fetch", "shallow", 0)) + add_shallow_requests(&req_buf, args); + else if (is_repository_shallow() || args->deepen) + die(_("Server does not support shallow requests")); + + /* add wants */ + add_wants(wants, &req_buf); + + /* Add all of the common commits we've found in previous rounds */ + add_common(&req_buf, common); + + /* Add initial haves */ + ret = add_haves(&req_buf, haves_to_send, in_vain); + + /* Send request */ + packet_buf_flush(&req_buf); + write_or_die(fd_out, req_buf.buf, req_buf.len); + + strbuf_release(&req_buf); + return ret; +} + +/* + * Processes a section header in a server's response and checks if it matches + * `section`. If the value of `peek` is 1, the header line will be peeked (and + * not consumed); if 0, the line will be consumed and the function will die if + * the section header doesn't match what was expected. + */ +static int process_section_header(struct packet_reader *reader, + const char *section, int peek) +{ + int ret; + + if (packet_reader_peek(reader) != PACKET_READ_NORMAL) + die("error reading section header '%s'", section); + + ret = !strcmp(reader->line, section); + + if (!peek) { + if (!ret) + die("expected '%s', received '%s'", + section, reader->line); + packet_reader_read(reader); + } + + return ret; +} + +static int process_acks(struct packet_reader *reader, struct oidset *common) +{ + /* received */ + int received_ready = 0; + int received_ack = 0; + + process_section_header(reader, "acknowledgments", 0); + while (packet_reader_read(reader) == PACKET_READ_NORMAL) { + const char *arg; + + if (!strcmp(reader->line, "NAK")) + continue; + + if (skip_prefix(reader->line, "ACK ", &arg)) { + struct object_id oid; + if (!get_oid_hex(arg, &oid)) { + struct commit *commit; + oidset_insert(common, &oid); + commit = lookup_commit(&oid); + mark_common(commit, 0, 1); + } + continue; + } + + if (!strcmp(reader->line, "ready")) { + clear_prio_queue(&rev_list); + received_ready = 1; + continue; + } + + die("unexpected acknowledgment line: '%s'", reader->line); + } + + if (reader->status != PACKET_READ_FLUSH && + reader->status != PACKET_READ_DELIM) + die("error processing acks: %d", reader->status); + + /* return 0 if no common, 1 if there are common, or 2 if ready */ + return received_ready ? 2 : (received_ack ? 1 : 0); +} + +static void receive_shallow_info(struct fetch_pack_args *args, + struct packet_reader *reader) +{ + process_section_header(reader, "shallow-info", 0); + while (packet_reader_read(reader) == PACKET_READ_NORMAL) { + const char *arg; + struct object_id oid; + + if (skip_prefix(reader->line, "shallow ", &arg)) { + if (get_oid_hex(arg, &oid)) + die(_("invalid shallow line: %s"), reader->line); + register_shallow(&oid); + continue; + } + if (skip_prefix(reader->line, "unshallow ", &arg)) { + if (get_oid_hex(arg, &oid)) + die(_("invalid unshallow line: %s"), reader->line); + if (!lookup_object(oid.hash)) + die(_("object not found: %s"), reader->line); + /* make sure that it is parsed as shallow */ + if (!parse_object(&oid)) + die(_("error in object: %s"), reader->line); + if (unregister_shallow(&oid)) + die(_("no shallow found: %s"), reader->line); + continue; + } + die(_("expected shallow/unshallow, got %s"), reader->line); + } + + if (reader->status != PACKET_READ_FLUSH && + reader->status != PACKET_READ_DELIM) + die("error processing shallow info: %d", reader->status); + + setup_alternate_shallow(&shallow_lock, &alternate_shallow_file, NULL); + args->deepen = 1; +} + +enum fetch_state { + FETCH_CHECK_LOCAL = 0, + FETCH_SEND_REQUEST, + FETCH_PROCESS_ACKS, + FETCH_GET_PACK, + FETCH_DONE, +}; + +static struct ref *do_fetch_pack_v2(struct fetch_pack_args *args, + int fd[2], + const struct ref *orig_ref, + struct ref **sought, int nr_sought, + char **pack_lockfile) +{ + struct ref *ref = copy_ref_list(orig_ref); + enum fetch_state state = FETCH_CHECK_LOCAL; + struct oidset common = OIDSET_INIT; + struct packet_reader reader; + int in_vain = 0; + int haves_to_send = INITIAL_FLUSH; + packet_reader_init(&reader, fd[0], NULL, 0, + PACKET_READ_CHOMP_NEWLINE); + + while (state != FETCH_DONE) { + switch (state) { + case FETCH_CHECK_LOCAL: + sort_ref_list(&ref, ref_compare_name); + QSORT(sought, nr_sought, cmp_ref_by_name); + + /* v2 supports these by default */ + allow_unadvertised_object_request |= ALLOW_REACHABLE_SHA1; + use_sideband = 2; + if (args->depth > 0 || args->deepen_since || args->deepen_not) + args->deepen = 1; + + if (marked) + for_each_ref(clear_marks, NULL); + marked = 1; + + for_each_ref(rev_list_insert_ref_oid, NULL); + for_each_cached_alternate(insert_one_alternate_object); + + /* Filter 'ref' by 'sought' and those that aren't local */ + if (everything_local(args, &ref, sought, nr_sought)) + state = FETCH_DONE; + else + state = FETCH_SEND_REQUEST; + break; + case FETCH_SEND_REQUEST: + if (send_fetch_request(fd[1], args, ref, &common, + &haves_to_send, &in_vain)) + state = FETCH_GET_PACK; + else + state = FETCH_PROCESS_ACKS; + break; + case FETCH_PROCESS_ACKS: + /* Process ACKs/NAKs */ + switch (process_acks(&reader, &common)) { + case 2: + state = FETCH_GET_PACK; + break; + case 1: + in_vain = 0; + /* fallthrough */ + default: + state = FETCH_SEND_REQUEST; + break; + } + break; + case FETCH_GET_PACK: + /* Check for shallow-info section */ + if (process_section_header(&reader, "shallow-info", 1)) + receive_shallow_info(args, &reader); + + /* get the pack */ + process_section_header(&reader, "packfile", 0); + if (get_pack(args, fd, pack_lockfile)) + die(_("git fetch-pack: fetch failed.")); + + state = FETCH_DONE; + break; + case FETCH_DONE: + continue; + } + } + + oidset_clear(&common); + return ref; +} + static void fetch_pack_config(void) { git_config_get_int("fetch.unpacklimit", &fetch_unpack_limit); @@ -1225,7 +1554,8 @@ struct ref *fetch_pack(struct fetch_pack_args *args, const char *dest, struct ref **sought, int nr_sought, struct oid_array *shallow, - char **pack_lockfile) + char **pack_lockfile, + enum protocol_version version) { struct ref *ref_cpy; struct shallow_info si; @@ -1239,8 +1569,12 @@ struct ref *fetch_pack(struct fetch_pack_args *args, die(_("no matching remote head")); } prepare_shallow_info(&si, shallow); - ref_cpy = do_fetch_pack(args, fd, ref, sought, nr_sought, - &si, pack_lockfile); + if (version == protocol_v2) + ref_cpy = do_fetch_pack_v2(args, fd, ref, sought, nr_sought, + pack_lockfile); + else + ref_cpy = do_fetch_pack(args, fd, ref, sought, nr_sought, + &si, pack_lockfile); reprepare_packed_git(the_repository); update_shallow(args, sought, nr_sought, &si); clear_shallow_info(&si); diff --git a/fetch-pack.h b/fetch-pack.h index 3e224a1822..bb45a366a8 100644 --- a/fetch-pack.h +++ b/fetch-pack.h @@ -3,6 +3,7 @@ #include "string-list.h" #include "run-command.h" +#include "protocol.h" #include "list-objects-filter-options.h" struct oid_array; @@ -14,6 +15,7 @@ struct fetch_pack_args { const char *deepen_since; const struct string_list *deepen_not; struct list_objects_filter_options filter_options; + const struct string_list *server_options; unsigned deepen_relative:1; unsigned quiet:1; unsigned keep_pack:1; @@ -53,7 +55,8 @@ struct ref *fetch_pack(struct fetch_pack_args *args, struct ref **sought, int nr_sought, struct oid_array *shallow, - char **pack_lockfile); + char **pack_lockfile, + enum protocol_version version); /* * Print an appropriate error message for each sought ref that wasn't @@ -10,6 +10,13 @@ #include "utf8.h" #include "sha1-array.h" #include "decorate.h" +#include "oidset.h" +#include "packfile.h" +#include "submodule-config.h" +#include "config.h" + +static struct oidset gitmodules_found = OIDSET_INIT; +static struct oidset gitmodules_done = OIDSET_INIT; #define FSCK_FATAL -1 #define FSCK_INFO -2 @@ -44,6 +51,7 @@ FUNC(MISSING_TAG_ENTRY, ERROR) \ FUNC(MISSING_TAG_OBJECT, ERROR) \ FUNC(MISSING_TREE, ERROR) \ + FUNC(MISSING_TREE_OBJECT, ERROR) \ FUNC(MISSING_TYPE, ERROR) \ FUNC(MISSING_TYPE_ENTRY, ERROR) \ FUNC(MULTIPLE_AUTHORS, ERROR) \ @@ -51,6 +59,11 @@ FUNC(TREE_NOT_SORTED, ERROR) \ FUNC(UNKNOWN_TYPE, ERROR) \ FUNC(ZERO_PADDED_DATE, ERROR) \ + FUNC(GITMODULES_MISSING, ERROR) \ + FUNC(GITMODULES_BLOB, ERROR) \ + FUNC(GITMODULES_PARSE, ERROR) \ + FUNC(GITMODULES_NAME, ERROR) \ + FUNC(GITMODULES_SYMLINK, ERROR) \ /* warnings */ \ FUNC(BAD_FILEMODE, WARN) \ FUNC(EMPTY_NAME, WARN) \ @@ -396,9 +409,11 @@ static int fsck_walk_commit(struct commit *commit, void *data, struct fsck_optio name = get_object_name(options, &commit->object); if (name) - put_object_name(options, &commit->tree->object, "%s:", name); + put_object_name(options, &get_commit_tree(commit)->object, + "%s:", name); - result = options->walk((struct object *)commit->tree, OBJ_TREE, data, options); + result = options->walk((struct object *)get_commit_tree(commit), + OBJ_TREE, data, options); if (result < 0) return result; res = result; @@ -561,10 +576,18 @@ static int fsck_tree(struct tree *item, struct fsck_options *options) has_empty_name |= !*name; has_dot |= !strcmp(name, "."); has_dotdot |= !strcmp(name, ".."); - has_dotgit |= (!strcmp(name, ".git") || - is_hfs_dotgit(name) || - is_ntfs_dotgit(name)); + has_dotgit |= is_hfs_dotgit(name) || is_ntfs_dotgit(name); has_zero_pad |= *(char *)desc.buffer == '0'; + + if (is_hfs_dotgitmodules(name) || is_ntfs_dotgitmodules(name)) { + if (!S_ISLNK(mode)) + oidset_insert(&gitmodules_found, oid); + else + retval += report(options, &item->object, + FSCK_MSG_GITMODULES_SYMLINK, + ".gitmodules is a symbolic link"); + } + if (update_tree_entry_gently(&desc)) { retval += report(options, &item->object, FSCK_MSG_BAD_TREE, "cannot be parsed as a tree"); break; @@ -772,7 +795,7 @@ static int fsck_commit_buffer(struct commit *commit, const char *buffer, err = fsck_ident(&buffer, &commit->object, options); if (err) return err; - if (!commit->tree) { + if (!get_commit_tree(commit)) { err = report(options, &commit->object, FSCK_MSG_BAD_TREE, "could not load commit's tree %s", sha1_to_hex(tree_sha1)); if (err) return err; @@ -901,6 +924,66 @@ static int fsck_tag(struct tag *tag, const char *data, return fsck_tag_buffer(tag, data, size, options); } +struct fsck_gitmodules_data { + struct object *obj; + struct fsck_options *options; + int ret; +}; + +static int fsck_gitmodules_fn(const char *var, const char *value, void *vdata) +{ + struct fsck_gitmodules_data *data = vdata; + const char *subsection, *key; + int subsection_len; + char *name; + + if (parse_config_key(var, "submodule", &subsection, &subsection_len, &key) < 0 || + !subsection) + return 0; + + name = xmemdupz(subsection, subsection_len); + if (check_submodule_name(name) < 0) + data->ret |= report(data->options, data->obj, + FSCK_MSG_GITMODULES_NAME, + "disallowed submodule name: %s", + name); + free(name); + + return 0; +} + +static int fsck_blob(struct blob *blob, const char *buf, + unsigned long size, struct fsck_options *options) +{ + struct fsck_gitmodules_data data; + + if (!oidset_contains(&gitmodules_found, &blob->object.oid)) + return 0; + oidset_insert(&gitmodules_done, &blob->object.oid); + + if (!buf) { + /* + * A missing buffer here is a sign that the caller found the + * blob too gigantic to load into memory. Let's just consider + * that an error. + */ + return report(options, &blob->object, + FSCK_MSG_GITMODULES_PARSE, + ".gitmodules too large to parse"); + } + + data.obj = &blob->object; + data.options = options; + data.ret = 0; + if (git_config_from_mem(fsck_gitmodules_fn, CONFIG_ORIGIN_BLOB, + ".gitmodules", buf, size, &data)) + data.ret |= report(options, &blob->object, + FSCK_MSG_GITMODULES_PARSE, + "could not parse gitmodules blob"); + + return data.ret; +} + int fsck_object(struct object *obj, void *data, unsigned long size, struct fsck_options *options) { @@ -908,7 +991,7 @@ int fsck_object(struct object *obj, void *data, unsigned long size, return report(options, obj, FSCK_MSG_BAD_OBJECT_SHA1, "no valid object to fsck"); if (obj->type == OBJ_BLOB) - return 0; + return fsck_blob((struct blob *)obj, data, size, options); if (obj->type == OBJ_TREE) return fsck_tree((struct tree *) obj, options); if (obj->type == OBJ_COMMIT) @@ -932,3 +1015,52 @@ int fsck_error_function(struct fsck_options *o, error("object %s: %s", describe_object(o, obj), message); return 1; } + +int fsck_finish(struct fsck_options *options) +{ + int ret = 0; + struct oidset_iter iter; + const struct object_id *oid; + + oidset_iter_init(&gitmodules_found, &iter); + while ((oid = oidset_iter_next(&iter))) { + struct blob *blob; + enum object_type type; + unsigned long size; + char *buf; + + if (oidset_contains(&gitmodules_done, oid)) + continue; + + blob = lookup_blob(oid); + if (!blob) { + ret |= report(options, &blob->object, + FSCK_MSG_GITMODULES_BLOB, + "non-blob found at .gitmodules"); + continue; + } + + buf = read_object_file(oid, &type, &size); + if (!buf) { + if (is_promisor_object(&blob->object.oid)) + continue; + ret |= report(options, &blob->object, + FSCK_MSG_GITMODULES_MISSING, + "unable to read .gitmodules blob"); + continue; + } + + if (type == OBJ_BLOB) + ret |= fsck_blob(blob, buf, size, options); + else + ret |= report(options, &blob->object, + FSCK_MSG_GITMODULES_BLOB, + "non-blob found at .gitmodules"); + free(buf); + } + + + oidset_clear(&gitmodules_found); + oidset_clear(&gitmodules_done); + return ret; +} @@ -53,4 +53,11 @@ int fsck_walk(struct object *obj, void *data, struct fsck_options *options); int fsck_object(struct object *obj, void *data, unsigned long size, struct fsck_options *options); +/* + * Some fsck checks are context-dependent, and may end up queued; run this + * after completing all fsck_object() calls in order to resolve any remaining + * checks. + */ +int fsck_finish(struct fsck_options *options); + #endif @@ -2,7 +2,8 @@ * Copyright (c) 2010 Ævar Arnfjörð Bjarmason */ -#include "git-compat-util.h" +#include "cache.h" +#include "exec-cmd.h" #include "gettext.h" #include "strbuf.h" #include "utf8.h" @@ -157,15 +158,24 @@ static void init_gettext_charset(const char *domain) void git_setup_gettext(void) { - const char *podir = getenv("GIT_TEXTDOMAINDIR"); + const char *podir = getenv(GIT_TEXT_DOMAIN_DIR_ENVIRONMENT); + char *p = NULL; if (!podir) - podir = GIT_LOCALE_PATH; + podir = p = system_path(GIT_LOCALE_PATH); + + if (!is_directory(podir)) { + free(p); + return; + } + bindtextdomain("git", podir); setlocale(LC_MESSAGES, ""); setlocale(LC_TIME, ""); init_gettext_charset("git"); textdomain("git"); + + free(p); } /* return the number of columns of string 's' in current locale */ diff --git a/git-compat-util.h b/git-compat-util.h index 3a051de450..9a64998b24 100644 --- a/git-compat-util.h +++ b/git-compat-util.h @@ -284,6 +284,10 @@ extern char *gitdirname(char *); #include <openssl/err.h> #endif +#ifdef HAVE_SYSINFO +# include <sys/sysinfo.h> +#endif + /* On most systems <netdb.h> would have given us this, but * not on some systems (e.g. z/OS). */ @@ -455,6 +459,7 @@ extern void (*get_warn_routine(void))(const char *warn, va_list params); extern void set_die_is_recursing_routine(int (*routine)(void)); extern int starts_with(const char *str, const char *prefix); +extern int istarts_with(const char *str, const char *prefix); /* * If the string "str" begins with the string found in "prefix", return 1. @@ -1001,6 +1006,23 @@ static inline int sane_iscase(int x, int is_lower) return (x & 0x20) == 0; } +/* + * Like skip_prefix, but compare case-insensitively. Note that the comparison + * is done via tolower(), so it is strictly ASCII (no multi-byte characters or + * locale-specific conversions). + */ +static inline int skip_iprefix(const char *str, const char *prefix, + const char **out) +{ + do { + if (!*prefix) { + *out = str; + return 1; + } + } while (tolower(*str++) == tolower(*prefix++)); + return 0; +} + static inline int strtoul_ui(char const *s, int base, unsigned int *result) { unsigned long ul; diff --git a/git-rebase--interactive.sh b/git-rebase--interactive.sh index 9947e6265f..2f4941d0fc 100644 --- a/git-rebase--interactive.sh +++ b/git-rebase--interactive.sh @@ -155,13 +155,19 @@ reschedule_last_action () { append_todo_help () { gettext " Commands: -p, pick = use commit -r, reword = use commit, but edit the commit message -e, edit = use commit, but stop for amending -s, squash = use commit, but meld into previous commit -f, fixup = like \"squash\", but discard this commit's log message -x, exec = run command (the rest of the line) using shell -d, drop = remove commit +p, pick <commit> = use commit +r, reword <commit> = use commit, but edit the commit message +e, edit <commit> = use commit, but stop for amending +s, squash <commit> = use commit, but meld into previous commit +f, fixup <commit> = like \"squash\", but discard this commit's log message +x, exec <commit> = run command (the rest of the line) using shell +d, drop <commit> = remove commit +l, label <label> = label current HEAD with a name +t, reset <label> = reset HEAD to a label +m, merge [-C <commit> | -c <commit>] <label> [# <oneline>] +. create a merge commit using the original merge commit's +. message (or the oneline, if no original merge commit was +. specified). Use -c <commit> to reword the commit message. These lines can be re-ordered; they are executed from top to bottom. " | git stripspace --comment-lines >>"$todo" @@ -888,6 +894,8 @@ init_revisions_and_shortrevisions () { else revisions=$onto...$orig_head shortrevisions=$shorthead + test -z "$squash_onto" || + echo "$squash_onto" >"$state_dir"/squash-onto fi } @@ -942,7 +950,7 @@ EOF die "Could not skip unnecessary pick commands" checkout_onto - if test -z "$rebase_root" && test ! -d "$rewritten" + if test ! -d "$rewritten" then require_clean_work_tree "rebase" exec git rebase--helper ${force_rebase:+--no-ff} $allow_empty_message \ @@ -964,6 +972,8 @@ git_rebase__interactive () { init_revisions_and_shortrevisions git rebase--helper --make-script ${keep_empty:+--keep-empty} \ + ${rebase_merges:+--rebase-merges} \ + ${rebase_cousins:+--rebase-cousins} \ $revisions ${restrict_revision+^$restrict_revision} >"$todo" || die "$(gettext "Could not generate todo list")" diff --git a/git-rebase.sh b/git-rebase.sh index ded5de085a..40be59ecc4 100755 --- a/git-rebase.sh +++ b/git-rebase.sh @@ -17,6 +17,7 @@ q,quiet! be quiet. implies --no-stat autostash automatically stash/stash pop before and after fork-point use 'merge-base --fork-point' to refine upstream onto=! rebase onto given branch instead of upstream +r,rebase-merges? try to rebase merges instead of skipping them p,preserve-merges! try to recreate merges instead of ignoring them s,strategy=! use the given merge strategy no-ff! cherry-pick all commits, even if unchanged @@ -89,6 +90,8 @@ type= state_dir= # One of {'', continue, skip, abort}, as parsed from command line action= +rebase_merges= +rebase_cousins= preserve_merges= autosquash= keep_empty= @@ -280,6 +283,19 @@ do --no-keep-empty) keep_empty= ;; + --rebase-merges) + rebase_merges=t + test -z "$interactive_rebase" && interactive_rebase=implied + ;; + --rebase-merges=*) + rebase_merges=t + case "${1#*=}" in + rebase-cousins) rebase_cousins=t;; + no-rebase-cousins) rebase_cousins=;; + *) die "Unknown mode: $1";; + esac + test -z "$interactive_rebase" && interactive_rebase=implied + ;; --preserve-merges) preserve_merges=t test -z "$interactive_rebase" && interactive_rebase=implied diff --git a/git-send-email.perl b/git-send-email.perl index 2fa7818ca9..8ec70e58ed 100755 --- a/git-send-email.perl +++ b/git-send-email.perl @@ -1330,9 +1330,14 @@ sub file_name_is_absolute { return File::Spec::Functions::file_name_is_absolute($path); } -# Returns 1 if the message was sent, and 0 otherwise. -# In actuality, the whole program dies when there -# is an error sending a message. +# Prepares the email, then asks the user what to do. +# +# If the user chooses to send the email, it's sent and 1 is returned. +# If the user chooses not to send the email, 0 is returned. +# If the user decides they want to make further edits, -1 is returned and the +# caller is expected to call send_message again after the edits are performed. +# +# If an error occurs sending the email, this just dies. sub send_message { my @recipients = unique_email_list(@to); @@ -1404,15 +1409,17 @@ Message-Id: $message_id EOF } - # TRANSLATORS: Make sure to include [y] [n] [q] [a] in your + # TRANSLATORS: Make sure to include [y] [n] [e] [q] [a] in your # translation. The program will only accept English input # at this point. - $_ = ask(__("Send this email? ([y]es|[n]o|[q]uit|[a]ll): "), - valid_re => qr/^(?:yes|y|no|n|quit|q|all|a)/i, + $_ = ask(__("Send this email? ([y]es|[n]o|[e]dit|[q]uit|[a]ll): "), + valid_re => qr/^(?:yes|y|no|n|edit|e|quit|q|all|a)/i, default => $ask_default); die __("Send this email reply required") unless defined $_; if (/^n/i) { return 0; + } elsif (/^e/i) { + return -1; } elsif (/^q/i) { cleanup_compose_files(); exit(0); @@ -1552,7 +1559,12 @@ $references = $initial_in_reply_to || ''; $subject = $initial_subject; $message_num = 0; -foreach my $t (@files) { +# Prepares the email, prompts the user, sends it out +# Returns 0 if an edit was done and the function should be called again, or 1 +# otherwise. +sub process_file { + my ($t) = @_; + open my $fh, "<", $t or die sprintf(__("can't open file %s"), $t); my $author = undef; @@ -1642,10 +1654,15 @@ foreach my $t (@files) { elsif (/^Content-Transfer-Encoding: (.*)/i) { $xfer_encoding = $1 if not defined $xfer_encoding; } + elsif (/^In-Reply-To: (.*)/i) { + $in_reply_to = $1; + } + elsif (/^References: (.*)/i) { + $references = $1; + } elsif (!/^Date:\s/i && /^[-A-Za-z]+:\s+\S/) { push @xh, $_; } - } else { # In the traditional # "send lots of email" format, @@ -1755,6 +1772,10 @@ foreach my $t (@files) { } my $message_was_sent = send_message(); + if ($message_was_sent == -1) { + do_edit($t); + return 0; + } # set up for the next message if ($thread && $message_was_sent && @@ -1776,6 +1797,14 @@ foreach my $t (@files) { undef $auth; sleep($relogin_delay) if defined $relogin_delay; } + + return 1; +} + +foreach my $t (@files) { + while (!process_file($t)) { + # user edited the file + } } # Execute a command (e.g. $to_cmd) to get a list of email addresses diff --git a/git-submodule.sh b/git-submodule.sh index 24914963ca..7e27d0a0da 100755 --- a/git-submodule.sh +++ b/git-submodule.sh @@ -229,6 +229,11 @@ Use -f if you really want to add it." >&2 sm_name="$sm_path" fi + if ! git submodule--helper check-name "$sm_name" + then + die "$(eval_gettext "'$sm_name' is not a valid submodule name")" + fi + # perhaps the path exists and is already a git repo, else clone it if test -e "$sm_path" then @@ -25,7 +25,7 @@ struct cmd_struct { const char git_usage_string[] = N_("git [--version] [--help] [-C <path>] [-c <name>=<value>]\n" " [--exec-path[=<path>]] [--html-path] [--man-path] [--info-path]\n" - " [-p | --paginate | --no-pager] [--no-replace-objects] [--bare]\n" + " [-p | --paginate | -P | --no-pager] [--no-replace-objects] [--bare]\n" " [--git-dir=<path>] [--work-tree=<path>] [--namespace=<name>]\n" " <command> [<args>]"); @@ -83,7 +83,7 @@ static int handle_options(const char ***argv, int *argc, int *envchanged) */ if (skip_prefix(cmd, "--exec-path", &cmd)) { if (*cmd == '=') - git_set_argv_exec_path(cmd + 1); + git_set_exec_path(cmd + 1); else { puts(git_exec_path()); exit(0); @@ -99,7 +99,7 @@ static int handle_options(const char ***argv, int *argc, int *envchanged) exit(0); } else if (!strcmp(cmd, "-p") || !strcmp(cmd, "--paginate")) { use_pager = 1; - } else if (!strcmp(cmd, "--no-pager")) { + } else if (!strcmp(cmd, "-P") || !strcmp(cmd, "--no-pager")) { use_pager = 0; if (envchanged) *envchanged = 1; @@ -392,6 +392,7 @@ static struct cmd_struct commands[] = { { "clone", cmd_clone }, { "column", cmd_column, RUN_SETUP_GENTLY }, { "commit", cmd_commit, RUN_SETUP | NEED_WORK_TREE }, + { "commit-graph", cmd_commit_graph, RUN_SETUP }, { "commit-tree", cmd_commit_tree, RUN_SETUP | NO_PARSEOPT }, { "config", cmd_config, RUN_SETUP_GENTLY | DELAY_PAGER_CONFIG }, { "count-objects", cmd_count_objects, RUN_SETUP }, @@ -465,6 +466,7 @@ static struct cmd_struct commands[] = { { "revert", cmd_revert, RUN_SETUP | NEED_WORK_TREE }, { "rm", cmd_rm, RUN_SETUP }, { "send-pack", cmd_send_pack, RUN_SETUP }, + { "serve", cmd_serve, RUN_SETUP }, { "shortlog", cmd_shortlog, RUN_SETUP_GENTLY | USE_PAGER }, { "show", cmd_show, RUN_SETUP }, { "show-branch", cmd_show_branch, RUN_SETUP }, @@ -482,6 +484,7 @@ static struct cmd_struct commands[] = { { "update-server-info", cmd_update_server_info, RUN_SETUP }, { "upload-archive", cmd_upload_archive, NO_PARSEOPT }, { "upload-archive--writer", cmd_upload_archive_writer, NO_PARSEOPT }, + { "upload-pack", cmd_upload_pack }, { "var", cmd_var, RUN_SETUP_GENTLY | NO_PARSEOPT }, { "verify-commit", cmd_verify_commit, RUN_SETUP }, { "verify-pack", cmd_verify_pack }, diff --git a/gpg-interface.c b/gpg-interface.c index 4feacf16e5..0647bd6348 100644 --- a/gpg-interface.c +++ b/gpg-interface.c @@ -101,22 +101,26 @@ void print_signature_buffer(const struct signature_check *sigc, unsigned flags) fputs(output, stderr); } -/* - * Look at GPG signed content (e.g. a signed tag object), whose - * payload is followed by a detached signature on it. Return the - * offset where the embedded detached signature begins, or the end of - * the data when there is no such signature. - */ -size_t parse_signature(const char *buf, unsigned long size) +static int is_gpg_start(const char *line) +{ + return starts_with(line, PGP_SIGNATURE) || + starts_with(line, PGP_MESSAGE); +} + +size_t parse_signature(const char *buf, size_t size) { - char *eol; size_t len = 0; - while (len < size && !starts_with(buf + len, PGP_SIGNATURE) && - !starts_with(buf + len, PGP_MESSAGE)) { + size_t match = size; + while (len < size) { + const char *eol; + + if (is_gpg_start(buf + len)) + match = len; + eol = memchr(buf + len, '\n', size - len); len += eol ? eol - (buf + len) + 1 : size - len; } - return len; + return match; } void set_signing_key(const char *key) @@ -128,13 +132,19 @@ void set_signing_key(const char *key) int git_gpg_config(const char *var, const char *value, void *cb) { if (!strcmp(var, "user.signingkey")) { + if (!value) + return config_error_nonbool(var); set_signing_key(value); + return 0; } + if (!strcmp(var, "gpg.program")) { if (!value) return config_error_nonbool(var); gpg_program = xstrdup(value); + return 0; } + return 0; } @@ -145,12 +155,6 @@ const char *get_signing_key(void) return git_committer_info(IDENT_STRICT|IDENT_NO_DATE); } -/* - * Create a detached signature for the contents of "buffer" and append - * it after "signature"; "buffer" and "signature" can be the same - * strbuf instance, which would cause the detached signature appended - * at the end. - */ int sign_buffer(struct strbuf *buffer, struct strbuf *signature, const char *signing_key) { struct child_process gpg = CHILD_PROCESS_INIT; @@ -192,11 +196,6 @@ int sign_buffer(struct strbuf *buffer, struct strbuf *signature, const char *sig return 0; } -/* - * Run "gpg" to see if the payload matches the detached signature. - * gpg_output, when set, receives the diagnostic output from GPG. - * gpg_status, when set, receives the status output from GPG. - */ int verify_signed_buffer(const char *payload, size_t payload_size, const char *signature, size_t signature_size, struct strbuf *gpg_output, struct strbuf *gpg_status) diff --git a/gpg-interface.h b/gpg-interface.h index d2d4fd3a65..a5e6517ae6 100644 --- a/gpg-interface.h +++ b/gpg-interface.h @@ -23,16 +23,43 @@ struct signature_check { char *key; }; -extern void signature_check_clear(struct signature_check *sigc); -extern size_t parse_signature(const char *buf, unsigned long size); -extern void parse_gpg_output(struct signature_check *); -extern int sign_buffer(struct strbuf *buffer, struct strbuf *signature, const char *signing_key); -extern int verify_signed_buffer(const char *payload, size_t payload_size, const char *signature, size_t signature_size, struct strbuf *gpg_output, struct strbuf *gpg_status); -extern int git_gpg_config(const char *, const char *, void *); -extern void set_signing_key(const char *); -extern const char *get_signing_key(void); -extern int check_signature(const char *payload, size_t plen, - const char *signature, size_t slen, struct signature_check *sigc); -void print_signature_buffer(const struct signature_check *sigc, unsigned flags); +void signature_check_clear(struct signature_check *sigc); + +/* + * Look at GPG signed content (e.g. a signed tag object), whose + * payload is followed by a detached signature on it. Return the + * offset where the embedded detached signature begins, or the end of + * the data when there is no such signature. + */ +size_t parse_signature(const char *buf, size_t size); + +void parse_gpg_output(struct signature_check *); + +/* + * Create a detached signature for the contents of "buffer" and append + * it after "signature"; "buffer" and "signature" can be the same + * strbuf instance, which would cause the detached signature appended + * at the end. + */ +int sign_buffer(struct strbuf *buffer, struct strbuf *signature, + const char *signing_key); + +/* + * Run "gpg" to see if the payload matches the detached signature. + * gpg_output, when set, receives the diagnostic output from GPG. + * gpg_status, when set, receives the status output from GPG. + */ +int verify_signed_buffer(const char *payload, size_t payload_size, + const char *signature, size_t signature_size, + struct strbuf *gpg_output, struct strbuf *gpg_status); + +int git_gpg_config(const char *, const char *, void *); +void set_signing_key(const char *); +const char *get_signing_key(void); +int check_signature(const char *payload, size_t plen, + const char *signature, size_t slen, + struct signature_check *sigc); +void print_signature_buffer(const struct signature_check *sigc, + unsigned flags); #endif diff --git a/http-backend.c b/http-backend.c index cc16cd04ad..adaef16fad 100644 --- a/http-backend.c +++ b/http-backend.c @@ -12,6 +12,7 @@ #include "argv-array.h" #include "packfile.h" #include "object-store.h" +#include "protocol.h" static const char content_type[] = "Content-Type"; static const char content_length[] = "Content-Length"; @@ -468,8 +469,11 @@ static void get_info_refs(struct strbuf *hdr, char *arg) hdr_str(hdr, content_type, buf.buf); end_headers(hdr); - packet_write_fmt(1, "# service=git-%s\n", svc->name); - packet_flush(1); + + if (determine_protocol_version_server() != protocol_v2) { + packet_write_fmt(1, "# service=git-%s\n", svc->name); + packet_flush(1); + } argv[0] = svc->name; run_service(argv, 0); diff --git a/http-fetch.c b/http-fetch.c index 885e471501..a32ac118d9 100644 --- a/http-fetch.c +++ b/http-fetch.c @@ -17,21 +17,13 @@ int cmd_main(int argc, const char **argv) char *url = NULL; int arg = 1; int rc = 0; - int get_tree = 0; - int get_history = 0; - int get_all = 0; int get_verbosely = 0; int get_recover = 0; while (arg < argc && argv[arg][0] == '-') { if (argv[arg][1] == 't') { - get_tree = 1; } else if (argv[arg][1] == 'c') { - get_history = 1; } else if (argv[arg][1] == 'a') { - get_all = 1; - get_tree = 1; - get_history = 1; } else if (argv[arg][1] == 'v') { get_verbosely = 1; } else if (argv[arg][1] == 'w') { @@ -55,10 +47,6 @@ int cmd_main(int argc, const char **argv) commits = 1; } - if (get_all == 0) - warning("http-fetch: use without -a is deprecated.\n" - "In a future release, -a will become the default."); - if (argv[arg]) str_end_url_with_slash(argv[arg], &url); @@ -68,9 +56,6 @@ int cmd_main(int argc, const char **argv) http_init(NULL, url, 0); walker = get_http_walker(url); - walker->get_tree = get_tree; - walker->get_history = get_history; - walker->get_all = get_all; walker->get_verbosely = get_verbosely; walker->get_recover = get_recover; diff --git a/http-push.c b/http-push.c index f308ce0195..2669f4bfa1 100644 --- a/http-push.c +++ b/http-push.c @@ -1331,7 +1331,7 @@ static int get_delta(struct rev_info *revs, struct remote_lock *lock) int count = 0; while ((commit = get_revision(revs)) != NULL) { - p = process_tree(commit->tree, p); + p = process_tree(get_commit_tree(commit), p); commit->object.flags |= LOCAL; if (!(commit->object.flags & UNINTERESTING)) count += add_send_request(&commit->object, lock); @@ -976,21 +976,6 @@ static void set_from_env(const char **var, const char *envname) *var = val; } -static void protocol_http_header(void) -{ - if (get_protocol_version_config() > 0) { - struct strbuf protocol_header = STRBUF_INIT; - - strbuf_addf(&protocol_header, GIT_PROTOCOL_HEADER ": version=%d", - get_protocol_version_config()); - - - extra_http_headers = curl_slist_append(extra_http_headers, - protocol_header.buf); - strbuf_release(&protocol_header); - } -} - void http_init(struct remote *remote, const char *url, int proactive_auth) { char *low_speed_limit; @@ -1021,8 +1006,6 @@ void http_init(struct remote *remote, const char *url, int proactive_auth) if (remote) var_override(&http_proxy_authmethod, remote->http_proxy_authmethod); - protocol_http_header(); - pragma_header = curl_slist_append(http_copy_default_headers(), "Pragma: no-cache"); no_pragma_header = curl_slist_append(http_copy_default_headers(), @@ -1795,6 +1778,14 @@ static int http_request(const char *url, headers = curl_slist_append(headers, buf.buf); + /* Add additional headers here */ + if (options && options->extra_headers) { + const struct string_list_item *item; + for_each_string_list_item(item, options->extra_headers) { + headers = curl_slist_append(headers, item->string); + } + } + curl_easy_setopt(slot->curl, CURLOPT_URL, url); curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers); curl_easy_setopt(slot->curl, CURLOPT_ENCODING, "gzip"); @@ -172,6 +172,13 @@ struct http_get_options { * for details. */ struct strbuf *base_url; + + /* + * If not NULL, contains additional HTTP headers to be sent with the + * request. The strings in the list must not be freed until after the + * request has completed. + */ + struct string_list *extra_headers; }; /* Return values for http_get_*() */ diff --git a/line-log.c b/line-log.c index ecdce08c4b..fa9cfd5bdb 100644 --- a/line-log.c +++ b/line-log.c @@ -816,8 +816,8 @@ static void queue_diffs(struct line_log_data *range, assert(commit); DIFF_QUEUE_CLEAR(&diff_queued_diff); - diff_tree_oid(parent ? &parent->tree->object.oid : NULL, - &commit->tree->object.oid, "", opt); + diff_tree_oid(parent ? get_commit_tree_oid(parent) : NULL, + get_commit_tree_oid(commit), "", opt); if (opt->detect_rename) { filter_diffs_for_paths(range, 1); if (diff_might_be_rename()) diff --git a/list-objects-filter.c b/list-objects-filter.c index 247717561f..5b14d2711a 100644 --- a/list-objects-filter.c +++ b/list-objects-filter.c @@ -117,7 +117,7 @@ static enum list_objects_filter_result filter_blobs_limit( assert(obj->type == OBJ_BLOB); assert((obj->flags & SEEN) == 0); - t = oid_object_info(&obj->oid, &object_length); + t = oid_object_info(the_repository, &obj->oid, &object_length); if (t != OBJ_BLOB) { /* probably OBJ_NONE */ /* * We DO NOT have the blob locally, so we cannot diff --git a/list-objects.c b/list-objects.c index 168bef688a..3eec510357 100644 --- a/list-objects.c +++ b/list-objects.c @@ -195,7 +195,7 @@ static void mark_edge_parents_uninteresting(struct commit *commit, struct commit *parent = parents->item; if (!(parent->object.flags & UNINTERESTING)) continue; - mark_tree_uninteresting(parent->tree); + mark_tree_uninteresting(get_commit_tree(parent)); if (revs->edge_hint && !(parent->object.flags & SHOWN)) { parent->object.flags |= SHOWN; show_edge(parent); @@ -212,7 +212,7 @@ void mark_edges_uninteresting(struct rev_info *revs, show_edge_fn show_edge) struct commit *commit = list->item; if (commit->object.flags & UNINTERESTING) { - mark_tree_uninteresting(commit->tree); + mark_tree_uninteresting(get_commit_tree(commit)); if (revs->edge_hint_aggressive && !(commit->object.flags & SHOWN)) { commit->object.flags |= SHOWN; show_edge(commit); @@ -227,7 +227,7 @@ void mark_edges_uninteresting(struct rev_info *revs, show_edge_fn show_edge) struct commit *commit = (struct commit *)obj; if (obj->type != OBJ_COMMIT || !(obj->flags & UNINTERESTING)) continue; - mark_tree_uninteresting(commit->tree); + mark_tree_uninteresting(get_commit_tree(commit)); if (!(obj->flags & SHOWN)) { obj->flags |= SHOWN; show_edge(commit); @@ -300,8 +300,8 @@ static void do_traverse(struct rev_info *revs, * an uninteresting boundary commit may not have its tree * parsed yet, but we are not going to show them anyway */ - if (commit->tree) - add_pending_tree(revs, commit->tree); + if (get_commit_tree(commit)) + add_pending_tree(revs, get_commit_tree(commit)); show_commit(commit, show_data); if (revs->tree_blobs_in_commit_order) diff --git a/log-tree.c b/log-tree.c index d1c0bedf24..724bae0de2 100644 --- a/log-tree.c +++ b/log-tree.c @@ -362,7 +362,8 @@ void fmt_output_email_subject(struct strbuf *sb, struct rev_info *opt) void log_write_email_headers(struct rev_info *opt, struct commit *commit, const char **extra_headers_p, - int *need_8bit_cte_p) + int *need_8bit_cte_p, + int maybe_multipart) { const char *extra_headers = opt->extra_headers; const char *name = oid_to_hex(opt->zero_commit ? @@ -385,7 +386,7 @@ void log_write_email_headers(struct rev_info *opt, struct commit *commit, opt->ref_message_ids->items[i].string); graph_show_oneline(opt->graph); } - if (opt->mime_boundary) { + if (opt->mime_boundary && maybe_multipart) { static char subject_buffer[1024]; static char buffer[1024]; struct strbuf filename = STRBUF_INIT; @@ -488,9 +489,9 @@ static int is_common_merge(const struct commit *commit) && !commit->parents->next->next); } -static void show_one_mergetag(struct commit *commit, - struct commit_extra_header *extra, - void *data) +static int show_one_mergetag(struct commit *commit, + struct commit_extra_header *extra, + void *data) { struct rev_info *opt = (struct rev_info *)data; struct object_id oid; @@ -502,7 +503,7 @@ static void show_one_mergetag(struct commit *commit, hash_object_file(extra->value, extra->len, type_name(OBJ_TAG), &oid); tag = lookup_tag(&oid); if (!tag) - return; /* error message already given */ + return -1; /* error message already given */ strbuf_init(&verify_message, 256); if (parse_tag_buffer(tag, extra->value, extra->len)) @@ -536,11 +537,12 @@ static void show_one_mergetag(struct commit *commit, show_sig_lines(opt, status, verify_message.buf); strbuf_release(&verify_message); + return 0; } -static void show_mergetag(struct rev_info *opt, struct commit *commit) +static int show_mergetag(struct rev_info *opt, struct commit *commit) { - for_each_mergetag(show_one_mergetag, commit, opt); + return for_each_mergetag(show_one_mergetag, commit, opt); } void show_log(struct rev_info *opt) @@ -610,7 +612,7 @@ void show_log(struct rev_info *opt) if (cmit_fmt_is_mail(opt->commit_format)) { log_write_email_headers(opt, commit, &extra_headers, - &ctx.need_8bit_cte); + &ctx.need_8bit_cte, 1); ctx.rev = opt; ctx.print_email_subject = 1; } else if (opt->commit_format != CMIT_FMT_USERFORMAT) { @@ -806,7 +808,7 @@ static int log_tree_diff(struct rev_info *opt, struct commit *commit, struct log return 0; parse_commit_or_die(commit); - oid = &commit->tree->object.oid; + oid = get_commit_tree_oid(commit); /* Root commit? */ parents = get_saved_parents(opt, commit); @@ -831,7 +833,7 @@ static int log_tree_diff(struct rev_info *opt, struct commit *commit, struct log * we merged _in_. */ parse_commit_or_die(parents->item); - diff_tree_oid(&parents->item->tree->object.oid, + diff_tree_oid(get_commit_tree_oid(parents->item), oid, "", &opt->diffopt); log_tree_diff_flush(opt); return !opt->loginfo; @@ -846,7 +848,7 @@ static int log_tree_diff(struct rev_info *opt, struct commit *commit, struct log struct commit *parent = parents->item; parse_commit_or_die(parent); - diff_tree_oid(&parent->tree->object.oid, + diff_tree_oid(get_commit_tree_oid(parent), oid, "", &opt->diffopt); log_tree_diff_flush(opt); diff --git a/log-tree.h b/log-tree.h index deba035187..e668628074 100644 --- a/log-tree.h +++ b/log-tree.h @@ -27,7 +27,8 @@ void format_decorations_extended(struct strbuf *sb, const struct commit *commit, void show_decorations(struct rev_info *opt, struct commit *commit); void log_write_email_headers(struct rev_info *opt, struct commit *commit, const char **extra_headers_p, - int *need_8bit_cte_p); + int *need_8bit_cte_p, + int maybe_multipart); void load_ref_decorations(struct decoration_filter *filter, int flags); #define FORMAT_PATCH_NAME_MAX 64 diff --git a/ls-refs.c b/ls-refs.c new file mode 100644 index 0000000000..a06f12eca8 --- /dev/null +++ b/ls-refs.c @@ -0,0 +1,96 @@ +#include "cache.h" +#include "repository.h" +#include "refs.h" +#include "remote.h" +#include "argv-array.h" +#include "ls-refs.h" +#include "pkt-line.h" + +/* + * Check if one of the prefixes is a prefix of the ref. + * If no prefixes were provided, all refs match. + */ +static int ref_match(const struct argv_array *prefixes, const char *refname) +{ + int i; + + if (!prefixes->argc) + return 1; /* no restriction */ + + for (i = 0; i < prefixes->argc; i++) { + const char *prefix = prefixes->argv[i]; + + if (starts_with(refname, prefix)) + return 1; + } + + return 0; +} + +struct ls_refs_data { + unsigned peel; + unsigned symrefs; + struct argv_array prefixes; +}; + +static int send_ref(const char *refname, const struct object_id *oid, + int flag, void *cb_data) +{ + struct ls_refs_data *data = cb_data; + const char *refname_nons = strip_namespace(refname); + struct strbuf refline = STRBUF_INIT; + + if (!ref_match(&data->prefixes, refname)) + return 0; + + strbuf_addf(&refline, "%s %s", oid_to_hex(oid), refname_nons); + if (data->symrefs && flag & REF_ISSYMREF) { + struct object_id unused; + const char *symref_target = resolve_ref_unsafe(refname, 0, + &unused, + &flag); + + if (!symref_target) + die("'%s' is a symref but it is not?", refname); + + strbuf_addf(&refline, " symref-target:%s", symref_target); + } + + if (data->peel) { + struct object_id peeled; + if (!peel_ref(refname, &peeled)) + strbuf_addf(&refline, " peeled:%s", oid_to_hex(&peeled)); + } + + strbuf_addch(&refline, '\n'); + packet_write(1, refline.buf, refline.len); + + strbuf_release(&refline); + return 0; +} + +int ls_refs(struct repository *r, struct argv_array *keys, + struct packet_reader *request) +{ + struct ls_refs_data data; + + memset(&data, 0, sizeof(data)); + + while (packet_reader_read(request) != PACKET_READ_FLUSH) { + const char *arg = request->line; + const char *out; + + if (!strcmp("peel", arg)) + data.peel = 1; + else if (!strcmp("symrefs", arg)) + data.symrefs = 1; + else if (skip_prefix(arg, "ref-prefix ", &out)) + argv_array_push(&data.prefixes, out); + } + + head_ref_namespaced(send_ref, &data); + for_each_namespaced_ref(send_ref, &data); + packet_flush(1); + argv_array_clear(&data.prefixes); + return 0; +} diff --git a/ls-refs.h b/ls-refs.h new file mode 100644 index 0000000000..b62877e8da --- /dev/null +++ b/ls-refs.h @@ -0,0 +1,10 @@ +#ifndef LS_REFS_H +#define LS_REFS_H + +struct repository; +struct argv_array; +struct packet_reader; +extern int ls_refs(struct repository *r, struct argv_array *keys, + struct packet_reader *request); + +#endif /* LS_REFS_H */ diff --git a/merge-recursive.c b/merge-recursive.c index 6409d0770f..e64b4b9d03 100644 --- a/merge-recursive.c +++ b/merge-recursive.c @@ -49,6 +49,67 @@ static unsigned int path_hash(const char *path) return ignore_case ? strihash(path) : strhash(path); } +static struct dir_rename_entry *dir_rename_find_entry(struct hashmap *hashmap, + char *dir) +{ + struct dir_rename_entry key; + + if (dir == NULL) + return NULL; + hashmap_entry_init(&key, strhash(dir)); + key.dir = dir; + return hashmap_get(hashmap, &key, NULL); +} + +static int dir_rename_cmp(const void *unused_cmp_data, + const void *entry, + const void *entry_or_key, + const void *unused_keydata) +{ + const struct dir_rename_entry *e1 = entry; + const struct dir_rename_entry *e2 = entry_or_key; + + return strcmp(e1->dir, e2->dir); +} + +static void dir_rename_init(struct hashmap *map) +{ + hashmap_init(map, dir_rename_cmp, NULL, 0); +} + +static void dir_rename_entry_init(struct dir_rename_entry *entry, + char *directory) +{ + hashmap_entry_init(entry, strhash(directory)); + entry->dir = directory; + entry->non_unique_new_dir = 0; + strbuf_init(&entry->new_dir, 0); + string_list_init(&entry->possible_new_dirs, 0); +} + +static struct collision_entry *collision_find_entry(struct hashmap *hashmap, + char *target_file) +{ + struct collision_entry key; + + hashmap_entry_init(&key, strhash(target_file)); + key.target_file = target_file; + return hashmap_get(hashmap, &key, NULL); +} + +static int collision_cmp(void *unused_cmp_data, + const struct collision_entry *e1, + const struct collision_entry *e2, + const void *unused_keydata) +{ + return strcmp(e1->target_file, e2->target_file); +} + +static void collision_init(struct hashmap *map) +{ + hashmap_init(map, (hashmap_cmp_fn) collision_cmp, NULL, 0); +} + static void flush_output(struct merge_options *o) { if (o->buffer_output < 2 && o->obuf.len) { @@ -101,7 +162,7 @@ static struct commit *make_virtual_commit(struct tree *tree, const char *comment struct commit *commit = alloc_commit_node(); set_merge_remote_desc(commit, comment, (struct object *)commit); - commit->tree = tree; + commit->maybe_tree = tree; commit->object.parsed = 1; return commit; } @@ -119,6 +180,7 @@ static int oid_eq(const struct object_id *a, const struct object_id *b) enum rename_type { RENAME_NORMAL = 0, + RENAME_DIR, RENAME_DELETE, RENAME_ONE_FILE_TO_ONE, RENAME_ONE_FILE_TO_TWO, @@ -254,7 +316,7 @@ static int add_cacheinfo(struct merge_options *o, ce = make_cache_entry(mode, oid ? oid->hash : null_sha1, path, stage, 0); if (!ce) - return err(o, _("addinfo_cache failed for path '%s'"), path); + return err(o, _("add_cacheinfo failed for path '%s'; merge aborting."), path); ret = add_cache_entry(ce, options); if (refresh) { @@ -262,7 +324,7 @@ static int add_cacheinfo(struct merge_options *o, nce = refresh_cache_entry(ce, CE_MATCH_REFRESH | CE_MATCH_IGNORE_MISSING); if (!nce) - return err(o, _("addinfo_cache failed for path '%s'"), path); + return err(o, _("add_cacheinfo failed to refresh for path '%s'; merge aborting."), path); if (nce != ce) ret = add_cache_entry(nce, options); } @@ -275,33 +337,45 @@ static void init_tree_desc_from_tree(struct tree_desc *desc, struct tree *tree) init_tree_desc(desc, tree->buffer, tree->size); } -static int git_merge_trees(int index_only, +static int git_merge_trees(struct merge_options *o, struct tree *common, struct tree *head, struct tree *merge) { int rc; struct tree_desc t[3]; - struct unpack_trees_options opts; + struct index_state tmp_index = { NULL }; - memset(&opts, 0, sizeof(opts)); - if (index_only) - opts.index_only = 1; + memset(&o->unpack_opts, 0, sizeof(o->unpack_opts)); + if (o->call_depth) + o->unpack_opts.index_only = 1; else - opts.update = 1; - opts.merge = 1; - opts.head_idx = 2; - opts.fn = threeway_merge; - opts.src_index = &the_index; - opts.dst_index = &the_index; - setup_unpack_trees_porcelain(&opts, "merge"); + o->unpack_opts.update = 1; + o->unpack_opts.merge = 1; + o->unpack_opts.head_idx = 2; + o->unpack_opts.fn = threeway_merge; + o->unpack_opts.src_index = &the_index; + o->unpack_opts.dst_index = &tmp_index; + o->unpack_opts.aggressive = !merge_detect_rename(o); + setup_unpack_trees_porcelain(&o->unpack_opts, "merge"); init_tree_desc_from_tree(t+0, common); init_tree_desc_from_tree(t+1, head); init_tree_desc_from_tree(t+2, merge); - rc = unpack_trees(3, t, &opts); + rc = unpack_trees(3, t, &o->unpack_opts); cache_tree_free(&active_cache_tree); + + /* + * Update the_index to match the new results, AFTER saving a copy + * in o->orig_index. Update src_index to point to the saved copy. + * (verify_uptodate() checks src_index, and the original index is + * the one that had the necessary modification timestamps.) + */ + o->orig_index = the_index; + the_index = tmp_index; + o->unpack_opts.src_index = &o->orig_index; + return rc; } @@ -360,6 +434,21 @@ static void get_files_dirs(struct merge_options *o, struct tree *tree) read_tree_recursive(tree, "", 0, 0, &match_all, save_files_dirs, o); } +static int get_tree_entry_if_blob(const struct object_id *tree, + const char *path, + struct object_id *hashy, + unsigned int *mode_o) +{ + int ret; + + ret = get_tree_entry(tree, path, hashy, mode_o); + if (S_ISDIR(*mode_o)) { + oidcpy(hashy, &null_oid); + *mode_o = 0; + } + return ret; +} + /* * Returns an index_entry instance which doesn't have to correspond to * a real cache entry in Git's index. @@ -370,12 +459,12 @@ static struct stage_data *insert_stage_data(const char *path, { struct string_list_item *item; struct stage_data *e = xcalloc(1, sizeof(struct stage_data)); - get_tree_entry(&o->object.oid, path, - &e->stages[1].oid, &e->stages[1].mode); - get_tree_entry(&a->object.oid, path, - &e->stages[2].oid, &e->stages[2].mode); - get_tree_entry(&b->object.oid, path, - &e->stages[3].oid, &e->stages[3].mode); + get_tree_entry_if_blob(&o->object.oid, path, + &e->stages[1].oid, &e->stages[1].mode); + get_tree_entry_if_blob(&a->object.oid, path, + &e->stages[2].oid, &e->stages[2].mode); + get_tree_entry_if_blob(&b->object.oid, path, + &e->stages[3].oid, &e->stages[3].mode); item = string_list_insert(entries, path); item->util = e; return e; @@ -534,78 +623,10 @@ struct rename { */ struct stage_data *src_entry; struct stage_data *dst_entry; + unsigned add_turned_into_rename:1; unsigned processed:1; }; -/* - * Get information of all renames which occurred between 'o_tree' and - * 'tree'. We need the three trees in the merge ('o_tree', 'a_tree' and - * 'b_tree') to be able to associate the correct cache entries with - * the rename information. 'tree' is always equal to either a_tree or b_tree. - */ -static struct string_list *get_renames(struct merge_options *o, - struct tree *tree, - struct tree *o_tree, - struct tree *a_tree, - struct tree *b_tree, - struct string_list *entries) -{ - int i; - struct string_list *renames; - struct diff_options opts; - - renames = xcalloc(1, sizeof(struct string_list)); - if (!o->detect_rename) - return renames; - - diff_setup(&opts); - opts.flags.recursive = 1; - opts.flags.rename_empty = 0; - opts.detect_rename = DIFF_DETECT_RENAME; - opts.rename_limit = o->merge_rename_limit >= 0 ? o->merge_rename_limit : - o->diff_rename_limit >= 0 ? o->diff_rename_limit : - 1000; - opts.rename_score = o->rename_score; - opts.show_rename_progress = o->show_rename_progress; - opts.output_format = DIFF_FORMAT_NO_OUTPUT; - diff_setup_done(&opts); - diff_tree_oid(&o_tree->object.oid, &tree->object.oid, "", &opts); - diffcore_std(&opts); - if (opts.needed_rename_limit > o->needed_rename_limit) - o->needed_rename_limit = opts.needed_rename_limit; - for (i = 0; i < diff_queued_diff.nr; ++i) { - struct string_list_item *item; - struct rename *re; - struct diff_filepair *pair = diff_queued_diff.queue[i]; - if (pair->status != 'R') { - diff_free_filepair(pair); - continue; - } - re = xmalloc(sizeof(*re)); - re->processed = 0; - re->pair = pair; - item = string_list_lookup(entries, re->pair->one->path); - if (!item) - re->src_entry = insert_stage_data(re->pair->one->path, - o_tree, a_tree, b_tree, entries); - else - re->src_entry = item->util; - - item = string_list_lookup(entries, re->pair->two->path); - if (!item) - re->dst_entry = insert_stage_data(re->pair->two->path, - o_tree, a_tree, b_tree, entries); - else - re->dst_entry = item->util; - item = string_list_insert(renames, pair->one->path); - item->util = re; - } - opts.output_format = DIFF_FORMAT_NO_OUTPUT; - diff_queued_diff.nr = 0; - diff_flush(&opts); - return renames; -} - static int update_stages(struct merge_options *opt, const char *path, const struct diff_filespec *o, const struct diff_filespec *a, @@ -637,6 +658,27 @@ static int update_stages(struct merge_options *opt, const char *path, return 0; } +static int update_stages_for_stage_data(struct merge_options *opt, + const char *path, + const struct stage_data *stage_data) +{ + struct diff_filespec o, a, b; + + o.mode = stage_data->stages[1].mode; + oidcpy(&o.oid, &stage_data->stages[1].oid); + + a.mode = stage_data->stages[2].mode; + oidcpy(&a.oid, &stage_data->stages[2].oid); + + b.mode = stage_data->stages[3].mode; + oidcpy(&b.oid, &stage_data->stages[3].oid); + + return update_stages(opt, path, + is_null_oid(&o.oid) ? NULL : &o, + is_null_oid(&a.oid) ? NULL : &a, + is_null_oid(&b.oid) ? NULL : &b); +} + static void update_entry(struct stage_data *entry, struct diff_filespec *o, struct diff_filespec *a, @@ -738,31 +780,92 @@ static int dir_in_way(const char *path, int check_working_copy, int empty_ok) !(empty_ok && is_empty_dir(path)); } -static int was_tracked(const char *path) +/* + * Returns whether path was tracked in the index before the merge started, + * and its oid and mode match the specified values + */ +static int was_tracked_and_matches(struct merge_options *o, const char *path, + const struct object_id *oid, unsigned mode) { - int pos = cache_name_pos(path, strlen(path)); + int pos = index_name_pos(&o->orig_index, path, strlen(path)); + struct cache_entry *ce; + + if (0 > pos) + /* we were not tracking this path before the merge */ + return 0; + + /* See if the file we were tracking before matches */ + ce = o->orig_index.cache[pos]; + return (oid_eq(&ce->oid, oid) && ce->ce_mode == mode); +} + +/* + * Returns whether path was tracked in the index before the merge started + */ +static int was_tracked(struct merge_options *o, const char *path) +{ + int pos = index_name_pos(&o->orig_index, path, strlen(path)); if (0 <= pos) - /* we have been tracking this path */ + /* we were tracking this path before the merge */ return 1; - /* - * Look for an unmerged entry for the path, - * specifically stage #2, which would indicate - * that "our" side before the merge started - * had the path tracked (and resulted in a conflict). - */ - for (pos = -1 - pos; - pos < active_nr && !strcmp(path, active_cache[pos]->name); - pos++) - if (ce_stage(active_cache[pos]) == 2) - return 1; return 0; } static int would_lose_untracked(const char *path) { - return !was_tracked(path) && file_exists(path); + /* + * This may look like it can be simplified to: + * return !was_tracked(o, path) && file_exists(path) + * but it can't. This function needs to know whether path was in + * the working tree due to EITHER having been tracked in the index + * before the merge OR having been put into the working copy and + * index by unpack_trees(). Due to that either-or requirement, we + * check the current index instead of the original one. + * + * Note that we do not need to worry about merge-recursive itself + * updating the index after unpack_trees() and before calling this + * function, because we strictly require all code paths in + * merge-recursive to update the working tree first and the index + * second. Doing otherwise would break + * update_file()/would_lose_untracked(); see every comment in this + * file which mentions "update_stages". + */ + int pos = cache_name_pos(path, strlen(path)); + + if (pos < 0) + pos = -1 - pos; + while (pos < active_nr && + !strcmp(path, active_cache[pos]->name)) { + /* + * If stage #0, it is definitely tracked. + * If it has stage #2 then it was tracked + * before this merge started. All other + * cases the path was not tracked. + */ + switch (ce_stage(active_cache[pos])) { + case 0: + case 2: + return 0; + } + pos++; + } + return file_exists(path); +} + +static int was_dirty(struct merge_options *o, const char *path) +{ + struct cache_entry *ce; + int dirty = 1; + + if (o->call_depth || !was_tracked(o, path)) + return !dirty; + + ce = index_file_exists(o->unpack_opts.src_index, + path, strlen(path), ignore_case); + dirty = verify_uptodate(ce, &o->unpack_opts) != 0; + return dirty; } static int make_room_for_path(struct merge_options *o, const char *path) @@ -893,7 +996,9 @@ static int update_file_flags(struct merge_options *o, } update_index: if (!ret && update_cache) - add_cacheinfo(o, mode, oid, path, 0, update_wd, ADD_CACHE_OK_TO_ADD); + if (add_cacheinfo(o, mode, oid, path, 0, update_wd, + ADD_CACHE_OK_TO_ADD)) + return -1; return ret; } @@ -978,12 +1083,13 @@ static int merge_3way(struct merge_options *o, } static int merge_file_1(struct merge_options *o, - const struct diff_filespec *one, - const struct diff_filespec *a, - const struct diff_filespec *b, - const char *branch1, - const char *branch2, - struct merge_file_info *result) + const struct diff_filespec *one, + const struct diff_filespec *a, + const struct diff_filespec *b, + const char *filename, + const char *branch1, + const char *branch2, + struct merge_file_info *result) { result->merge = 0; result->clean = 1; @@ -1063,18 +1169,22 @@ static int merge_file_1(struct merge_options *o, BUG("unsupported object type in the tree"); } + if (result->merge) + output(o, 2, _("Auto-merging %s"), filename); + return 0; } static int merge_file_special_markers(struct merge_options *o, - const struct diff_filespec *one, - const struct diff_filespec *a, - const struct diff_filespec *b, - const char *branch1, - const char *filename1, - const char *branch2, - const char *filename2, - struct merge_file_info *mfi) + const struct diff_filespec *one, + const struct diff_filespec *a, + const struct diff_filespec *b, + const char *target_filename, + const char *branch1, + const char *filename1, + const char *branch2, + const char *filename2, + struct merge_file_info *mfi) { char *side1 = NULL; char *side2 = NULL; @@ -1085,22 +1195,23 @@ static int merge_file_special_markers(struct merge_options *o, if (filename2) side2 = xstrfmt("%s:%s", branch2, filename2); - ret = merge_file_1(o, one, a, b, + ret = merge_file_1(o, one, a, b, target_filename, side1 ? side1 : branch1, side2 ? side2 : branch2, mfi); + free(side1); free(side2); return ret; } static int merge_file_one(struct merge_options *o, - const char *path, - const struct object_id *o_oid, int o_mode, - const struct object_id *a_oid, int a_mode, - const struct object_id *b_oid, int b_mode, - const char *branch1, - const char *branch2, - struct merge_file_info *mfi) + const char *path, + const struct object_id *o_oid, int o_mode, + const struct object_id *a_oid, int a_mode, + const struct object_id *b_oid, int b_mode, + const char *branch1, + const char *branch2, + struct merge_file_info *mfi) { struct diff_filespec one, a, b; @@ -1111,7 +1222,39 @@ static int merge_file_one(struct merge_options *o, a.mode = a_mode; oidcpy(&b.oid, b_oid); b.mode = b_mode; - return merge_file_1(o, &one, &a, &b, branch1, branch2, mfi); + return merge_file_1(o, &one, &a, &b, path, branch1, branch2, mfi); +} + +static int conflict_rename_dir(struct merge_options *o, + struct diff_filepair *pair, + const char *rename_branch, + const char *other_branch) +{ + const struct diff_filespec *dest = pair->two; + + if (!o->call_depth && would_lose_untracked(dest->path)) { + char *alt_path = unique_path(o, dest->path, rename_branch); + + output(o, 1, _("Error: Refusing to lose untracked file at %s; " + "writing to %s instead."), + dest->path, alt_path); + /* + * Write the file in worktree at alt_path, but not in the + * index. Instead, write to dest->path for the index but + * only at the higher appropriate stage. + */ + if (update_file(o, 0, &dest->oid, dest->mode, alt_path)) + return -1; + free(alt_path); + return update_stages(o, dest->path, NULL, + rename_branch == o->branch1 ? dest : NULL, + rename_branch == o->branch1 ? NULL : dest); + } + + /* Update dest->path both in index and in worktree */ + if (update_file(o, 1, &dest->oid, dest->mode, dest->path)) + return -1; + return 0; } static int handle_change_delete(struct merge_options *o, @@ -1127,7 +1270,8 @@ static int handle_change_delete(struct merge_options *o, const char *update_path = path; int ret = 0; - if (dir_in_way(path, !o->call_depth, 0)) { + if (dir_in_way(path, !o->call_depth, 0) || + (!o->call_depth && would_lose_untracked(path))) { update_path = alt_path = unique_path(o, path, change_branch); } @@ -1242,17 +1386,34 @@ static int handle_file(struct merge_options *o, add = filespec_from_entry(&other, dst_entry, stage ^ 1); if (add) { + int ren_src_was_dirty = was_dirty(o, rename->path); char *add_name = unique_path(o, rename->path, other_branch); if (update_file(o, 0, &add->oid, add->mode, add_name)) return -1; - remove_file(o, 0, rename->path, 0); + if (ren_src_was_dirty) { + output(o, 1, _("Refusing to lose dirty file at %s"), + rename->path); + } + /* + * Because the double negatives somehow keep confusing me... + * 1) update_wd iff !ren_src_was_dirty. + * 2) no_wd iff !update_wd + * 3) so, no_wd == !!ren_src_was_dirty == ren_src_was_dirty + */ + remove_file(o, 0, rename->path, ren_src_was_dirty); dst_name = unique_path(o, rename->path, cur_branch); } else { if (dir_in_way(rename->path, !o->call_depth, 0)) { dst_name = unique_path(o, rename->path, cur_branch); output(o, 1, _("%s is a directory in %s adding as %s instead"), rename->path, other_branch, dst_name); + } else if (!o->call_depth && + would_lose_untracked(rename->path)) { + dst_name = unique_path(o, rename->path, cur_branch); + output(o, 1, _("Refusing to lose untracked file at %s; " + "adding as %s instead"), + rename->path, dst_name); } } if ((ret = update_file(o, 0, &rename->oid, rename->mode, dst_name))) @@ -1339,6 +1500,8 @@ static int conflict_rename_rename_2to1(struct merge_options *o, struct diff_filespec *c1 = ci->pair1->two; struct diff_filespec *c2 = ci->pair2->two; char *path = c1->path; /* == c2->path */ + char *path_side_1_desc; + char *path_side_2_desc; struct merge_file_info mfi_c1; struct merge_file_info mfi_c2; int ret; @@ -1352,13 +1515,19 @@ static int conflict_rename_rename_2to1(struct merge_options *o, remove_file(o, 1, a->path, o->call_depth || would_lose_untracked(a->path)); remove_file(o, 1, b->path, o->call_depth || would_lose_untracked(b->path)); + path_side_1_desc = xstrfmt("%s (was %s)", path, a->path); + path_side_2_desc = xstrfmt("%s (was %s)", path, b->path); if (merge_file_special_markers(o, a, c1, &ci->ren1_other, + path_side_1_desc, o->branch1, c1->path, o->branch2, ci->ren1_other.path, &mfi_c1) || merge_file_special_markers(o, b, &ci->ren2_other, c2, + path_side_2_desc, o->branch1, ci->ren2_other.path, o->branch2, c2->path, &mfi_c2)) return -1; + free(path_side_1_desc); + free(path_side_2_desc); if (o->call_depth) { /* @@ -1378,11 +1547,43 @@ static int conflict_rename_rename_2to1(struct merge_options *o, char *new_path2 = unique_path(o, path, ci->branch2); output(o, 1, _("Renaming %s to %s and %s to %s instead"), a->path, new_path1, b->path, new_path2); - remove_file(o, 0, path, 0); + if (was_dirty(o, path)) + output(o, 1, _("Refusing to lose dirty file at %s"), + path); + else if (would_lose_untracked(path)) + /* + * Only way we get here is if both renames were from + * a directory rename AND user had an untracked file + * at the location where both files end up after the + * two directory renames. See testcase 10d of t6043. + */ + output(o, 1, _("Refusing to lose untracked file at " + "%s, even though it's in the way."), + path); + else + remove_file(o, 0, path, 0); ret = update_file(o, 0, &mfi_c1.oid, mfi_c1.mode, new_path1); if (!ret) ret = update_file(o, 0, &mfi_c2.oid, mfi_c2.mode, new_path2); + /* + * unpack_trees() actually populates the index for us for + * "normal" rename/rename(2to1) situtations so that the + * correct entries are at the higher stages, which would + * make the call below to update_stages_for_stage_data + * unnecessary. However, if either of the renames came + * from a directory rename, then unpack_trees() will not + * have gotten the right data loaded into the index, so we + * need to do so now. (While it'd be tempting to move this + * call to update_stages_for_stage_data() to + * apply_directory_rename_modifications(), that would break + * our intermediate calls to would_lose_untracked() since + * those rely on the current in-memory index. See also the + * big "NOTE" in update_stages()). + */ + if (update_stages_for_stage_data(o, path, ci->dst_entry1)) + ret = -1; + free(new_path2); free(new_path1); } @@ -1390,6 +1591,762 @@ static int conflict_rename_rename_2to1(struct merge_options *o, return ret; } +/* + * Get the diff_filepairs changed between o_tree and tree. + */ +static struct diff_queue_struct *get_diffpairs(struct merge_options *o, + struct tree *o_tree, + struct tree *tree) +{ + struct diff_queue_struct *ret; + struct diff_options opts; + + diff_setup(&opts); + opts.flags.recursive = 1; + opts.flags.rename_empty = 0; + opts.detect_rename = merge_detect_rename(o); + /* + * We do not have logic to handle the detection of copies. In + * fact, it may not even make sense to add such logic: would we + * really want a change to a base file to be propagated through + * multiple other files by a merge? + */ + if (opts.detect_rename > DIFF_DETECT_RENAME) + opts.detect_rename = DIFF_DETECT_RENAME; + opts.rename_limit = o->merge_rename_limit >= 0 ? o->merge_rename_limit : + o->diff_rename_limit >= 0 ? o->diff_rename_limit : + 1000; + opts.rename_score = o->rename_score; + opts.show_rename_progress = o->show_rename_progress; + opts.output_format = DIFF_FORMAT_NO_OUTPUT; + diff_setup_done(&opts); + diff_tree_oid(&o_tree->object.oid, &tree->object.oid, "", &opts); + diffcore_std(&opts); + if (opts.needed_rename_limit > o->needed_rename_limit) + o->needed_rename_limit = opts.needed_rename_limit; + + ret = xmalloc(sizeof(*ret)); + *ret = diff_queued_diff; + + opts.output_format = DIFF_FORMAT_NO_OUTPUT; + diff_queued_diff.nr = 0; + diff_queued_diff.queue = NULL; + diff_flush(&opts); + return ret; +} + +static int tree_has_path(struct tree *tree, const char *path) +{ + struct object_id hashy; + unsigned int mode_o; + + return !get_tree_entry(&tree->object.oid, path, + &hashy, &mode_o); +} + +/* + * Return a new string that replaces the beginning portion (which matches + * entry->dir), with entry->new_dir. In perl-speak: + * new_path_name = (old_path =~ s/entry->dir/entry->new_dir/); + * NOTE: + * Caller must ensure that old_path starts with entry->dir + '/'. + */ +static char *apply_dir_rename(struct dir_rename_entry *entry, + const char *old_path) +{ + struct strbuf new_path = STRBUF_INIT; + int oldlen, newlen; + + if (entry->non_unique_new_dir) + return NULL; + + oldlen = strlen(entry->dir); + newlen = entry->new_dir.len + (strlen(old_path) - oldlen) + 1; + strbuf_grow(&new_path, newlen); + strbuf_addbuf(&new_path, &entry->new_dir); + strbuf_addstr(&new_path, &old_path[oldlen]); + + return strbuf_detach(&new_path, NULL); +} + +static void get_renamed_dir_portion(const char *old_path, const char *new_path, + char **old_dir, char **new_dir) +{ + char *end_of_old, *end_of_new; + int old_len, new_len; + + *old_dir = NULL; + *new_dir = NULL; + + /* + * For + * "a/b/c/d/e/foo.c" -> "a/b/some/thing/else/e/foo.c" + * the "e/foo.c" part is the same, we just want to know that + * "a/b/c/d" was renamed to "a/b/some/thing/else" + * so, for this example, this function returns "a/b/c/d" in + * *old_dir and "a/b/some/thing/else" in *new_dir. + * + * Also, if the basename of the file changed, we don't care. We + * want to know which portion of the directory, if any, changed. + */ + end_of_old = strrchr(old_path, '/'); + end_of_new = strrchr(new_path, '/'); + + if (end_of_old == NULL || end_of_new == NULL) + return; + while (*--end_of_new == *--end_of_old && + end_of_old != old_path && + end_of_new != new_path) + ; /* Do nothing; all in the while loop */ + /* + * We've found the first non-matching character in the directory + * paths. That means the current directory we were comparing + * represents the rename. Move end_of_old and end_of_new back + * to the full directory name. + */ + if (*end_of_old == '/') + end_of_old++; + if (*end_of_old != '/') + end_of_new++; + end_of_old = strchr(end_of_old, '/'); + end_of_new = strchr(end_of_new, '/'); + + /* + * It may have been the case that old_path and new_path were the same + * directory all along. Don't claim a rename if they're the same. + */ + old_len = end_of_old - old_path; + new_len = end_of_new - new_path; + + if (old_len != new_len || strncmp(old_path, new_path, old_len)) { + *old_dir = xstrndup(old_path, old_len); + *new_dir = xstrndup(new_path, new_len); + } +} + +static void remove_hashmap_entries(struct hashmap *dir_renames, + struct string_list *items_to_remove) +{ + int i; + struct dir_rename_entry *entry; + + for (i = 0; i < items_to_remove->nr; i++) { + entry = items_to_remove->items[i].util; + hashmap_remove(dir_renames, entry, NULL); + } + string_list_clear(items_to_remove, 0); +} + +/* + * See if there is a directory rename for path, and if there are any file + * level conflicts for the renamed location. If there is a rename and + * there are no conflicts, return the new name. Otherwise, return NULL. + */ +static char *handle_path_level_conflicts(struct merge_options *o, + const char *path, + struct dir_rename_entry *entry, + struct hashmap *collisions, + struct tree *tree) +{ + char *new_path = NULL; + struct collision_entry *collision_ent; + int clean = 1; + struct strbuf collision_paths = STRBUF_INIT; + + /* + * entry has the mapping of old directory name to new directory name + * that we want to apply to path. + */ + new_path = apply_dir_rename(entry, path); + + if (!new_path) { + /* This should only happen when entry->non_unique_new_dir set */ + if (!entry->non_unique_new_dir) + BUG("entry->non_unqiue_dir not set and !new_path"); + output(o, 1, _("CONFLICT (directory rename split): " + "Unclear where to place %s because directory " + "%s was renamed to multiple other directories, " + "with no destination getting a majority of the " + "files."), + path, entry->dir); + clean = 0; + return NULL; + } + + /* + * The caller needs to have ensured that it has pre-populated + * collisions with all paths that map to new_path. Do a quick check + * to ensure that's the case. + */ + collision_ent = collision_find_entry(collisions, new_path); + if (collision_ent == NULL) + BUG("collision_ent is NULL"); + + /* + * Check for one-sided add/add/.../add conflicts, i.e. + * where implicit renames from the other side doing + * directory rename(s) can affect this side of history + * to put multiple paths into the same location. Warn + * and bail on directory renames for such paths. + */ + if (collision_ent->reported_already) { + clean = 0; + } else if (tree_has_path(tree, new_path)) { + collision_ent->reported_already = 1; + strbuf_add_separated_string_list(&collision_paths, ", ", + &collision_ent->source_files); + output(o, 1, _("CONFLICT (implicit dir rename): Existing " + "file/dir at %s in the way of implicit " + "directory rename(s) putting the following " + "path(s) there: %s."), + new_path, collision_paths.buf); + clean = 0; + } else if (collision_ent->source_files.nr > 1) { + collision_ent->reported_already = 1; + strbuf_add_separated_string_list(&collision_paths, ", ", + &collision_ent->source_files); + output(o, 1, _("CONFLICT (implicit dir rename): Cannot map " + "more than one path to %s; implicit directory " + "renames tried to put these paths there: %s"), + new_path, collision_paths.buf); + clean = 0; + } + + /* Free memory we no longer need */ + strbuf_release(&collision_paths); + if (!clean && new_path) { + free(new_path); + return NULL; + } + + return new_path; +} + +/* + * There are a couple things we want to do at the directory level: + * 1. Check for both sides renaming to the same thing, in order to avoid + * implicit renaming of files that should be left in place. (See + * testcase 6b in t6043 for details.) + * 2. Prune directory renames if there are still files left in the + * the original directory. These represent a partial directory rename, + * i.e. a rename where only some of the files within the directory + * were renamed elsewhere. (Technically, this could be done earlier + * in get_directory_renames(), except that would prevent us from + * doing the previous check and thus failing testcase 6b.) + * 3. Check for rename/rename(1to2) conflicts (at the directory level). + * In the future, we could potentially record this info as well and + * omit reporting rename/rename(1to2) conflicts for each path within + * the affected directories, thus cleaning up the merge output. + * NOTE: We do NOT check for rename/rename(2to1) conflicts at the + * directory level, because merging directories is fine. If it + * causes conflicts for files within those merged directories, then + * that should be detected at the individual path level. + */ +static void handle_directory_level_conflicts(struct merge_options *o, + struct hashmap *dir_re_head, + struct tree *head, + struct hashmap *dir_re_merge, + struct tree *merge) +{ + struct hashmap_iter iter; + struct dir_rename_entry *head_ent; + struct dir_rename_entry *merge_ent; + + struct string_list remove_from_head = STRING_LIST_INIT_NODUP; + struct string_list remove_from_merge = STRING_LIST_INIT_NODUP; + + hashmap_iter_init(dir_re_head, &iter); + while ((head_ent = hashmap_iter_next(&iter))) { + merge_ent = dir_rename_find_entry(dir_re_merge, head_ent->dir); + if (merge_ent && + !head_ent->non_unique_new_dir && + !merge_ent->non_unique_new_dir && + !strbuf_cmp(&head_ent->new_dir, &merge_ent->new_dir)) { + /* 1. Renamed identically; remove it from both sides */ + string_list_append(&remove_from_head, + head_ent->dir)->util = head_ent; + strbuf_release(&head_ent->new_dir); + string_list_append(&remove_from_merge, + merge_ent->dir)->util = merge_ent; + strbuf_release(&merge_ent->new_dir); + } else if (tree_has_path(head, head_ent->dir)) { + /* 2. This wasn't a directory rename after all */ + string_list_append(&remove_from_head, + head_ent->dir)->util = head_ent; + strbuf_release(&head_ent->new_dir); + } + } + + remove_hashmap_entries(dir_re_head, &remove_from_head); + remove_hashmap_entries(dir_re_merge, &remove_from_merge); + + hashmap_iter_init(dir_re_merge, &iter); + while ((merge_ent = hashmap_iter_next(&iter))) { + head_ent = dir_rename_find_entry(dir_re_head, merge_ent->dir); + if (tree_has_path(merge, merge_ent->dir)) { + /* 2. This wasn't a directory rename after all */ + string_list_append(&remove_from_merge, + merge_ent->dir)->util = merge_ent; + } else if (head_ent && + !head_ent->non_unique_new_dir && + !merge_ent->non_unique_new_dir) { + /* 3. rename/rename(1to2) */ + /* + * We can assume it's not rename/rename(1to1) because + * that was case (1), already checked above. So we + * know that head_ent->new_dir and merge_ent->new_dir + * are different strings. + */ + output(o, 1, _("CONFLICT (rename/rename): " + "Rename directory %s->%s in %s. " + "Rename directory %s->%s in %s"), + head_ent->dir, head_ent->new_dir.buf, o->branch1, + head_ent->dir, merge_ent->new_dir.buf, o->branch2); + string_list_append(&remove_from_head, + head_ent->dir)->util = head_ent; + strbuf_release(&head_ent->new_dir); + string_list_append(&remove_from_merge, + merge_ent->dir)->util = merge_ent; + strbuf_release(&merge_ent->new_dir); + } + } + + remove_hashmap_entries(dir_re_head, &remove_from_head); + remove_hashmap_entries(dir_re_merge, &remove_from_merge); +} + +static struct hashmap *get_directory_renames(struct diff_queue_struct *pairs, + struct tree *tree) +{ + struct hashmap *dir_renames; + struct hashmap_iter iter; + struct dir_rename_entry *entry; + int i; + + /* + * Typically, we think of a directory rename as all files from a + * certain directory being moved to a target directory. However, + * what if someone first moved two files from the original + * directory in one commit, and then renamed the directory + * somewhere else in a later commit? At merge time, we just know + * that files from the original directory went to two different + * places, and that the bulk of them ended up in the same place. + * We want each directory rename to represent where the bulk of the + * files from that directory end up; this function exists to find + * where the bulk of the files went. + * + * The first loop below simply iterates through the list of file + * renames, finding out how often each directory rename pair + * possibility occurs. + */ + dir_renames = xmalloc(sizeof(*dir_renames)); + dir_rename_init(dir_renames); + for (i = 0; i < pairs->nr; ++i) { + struct string_list_item *item; + int *count; + struct diff_filepair *pair = pairs->queue[i]; + char *old_dir, *new_dir; + + /* File not part of directory rename if it wasn't renamed */ + if (pair->status != 'R') + continue; + + get_renamed_dir_portion(pair->one->path, pair->two->path, + &old_dir, &new_dir); + if (!old_dir) + /* Directory didn't change at all; ignore this one. */ + continue; + + entry = dir_rename_find_entry(dir_renames, old_dir); + if (!entry) { + entry = xmalloc(sizeof(*entry)); + dir_rename_entry_init(entry, old_dir); + hashmap_put(dir_renames, entry); + } else { + free(old_dir); + } + item = string_list_lookup(&entry->possible_new_dirs, new_dir); + if (!item) { + item = string_list_insert(&entry->possible_new_dirs, + new_dir); + item->util = xcalloc(1, sizeof(int)); + } else { + free(new_dir); + } + count = item->util; + *count += 1; + } + + /* + * For each directory with files moved out of it, we find out which + * target directory received the most files so we can declare it to + * be the "winning" target location for the directory rename. This + * winner gets recorded in new_dir. If there is no winner + * (multiple target directories received the same number of files), + * we set non_unique_new_dir. Once we've determined the winner (or + * that there is no winner), we no longer need possible_new_dirs. + */ + hashmap_iter_init(dir_renames, &iter); + while ((entry = hashmap_iter_next(&iter))) { + int max = 0; + int bad_max = 0; + char *best = NULL; + + for (i = 0; i < entry->possible_new_dirs.nr; i++) { + int *count = entry->possible_new_dirs.items[i].util; + + if (*count == max) + bad_max = max; + else if (*count > max) { + max = *count; + best = entry->possible_new_dirs.items[i].string; + } + } + if (bad_max == max) + entry->non_unique_new_dir = 1; + else { + assert(entry->new_dir.len == 0); + strbuf_addstr(&entry->new_dir, best); + } + /* + * The relevant directory sub-portion of the original full + * filepaths were xstrndup'ed before inserting into + * possible_new_dirs, and instead of manually iterating the + * list and free'ing each, just lie and tell + * possible_new_dirs that it did the strdup'ing so that it + * will free them for us. + */ + entry->possible_new_dirs.strdup_strings = 1; + string_list_clear(&entry->possible_new_dirs, 1); + } + + return dir_renames; +} + +static struct dir_rename_entry *check_dir_renamed(const char *path, + struct hashmap *dir_renames) +{ + char temp[PATH_MAX]; + char *end; + struct dir_rename_entry *entry; + + strcpy(temp, path); + while ((end = strrchr(temp, '/'))) { + *end = '\0'; + entry = dir_rename_find_entry(dir_renames, temp); + if (entry) + return entry; + } + return NULL; +} + +static void compute_collisions(struct hashmap *collisions, + struct hashmap *dir_renames, + struct diff_queue_struct *pairs) +{ + int i; + + /* + * Multiple files can be mapped to the same path due to directory + * renames done by the other side of history. Since that other + * side of history could have merged multiple directories into one, + * if our side of history added the same file basename to each of + * those directories, then all N of them would get implicitly + * renamed by the directory rename detection into the same path, + * and we'd get an add/add/.../add conflict, and all those adds + * from *this* side of history. This is not representable in the + * index, and users aren't going to easily be able to make sense of + * it. So we need to provide a good warning about what's + * happening, and fall back to no-directory-rename detection + * behavior for those paths. + * + * See testcases 9e and all of section 5 from t6043 for examples. + */ + collision_init(collisions); + + for (i = 0; i < pairs->nr; ++i) { + struct dir_rename_entry *dir_rename_ent; + struct collision_entry *collision_ent; + char *new_path; + struct diff_filepair *pair = pairs->queue[i]; + + if (pair->status != 'A' && pair->status != 'R') + continue; + dir_rename_ent = check_dir_renamed(pair->two->path, + dir_renames); + if (!dir_rename_ent) + continue; + + new_path = apply_dir_rename(dir_rename_ent, pair->two->path); + if (!new_path) + /* + * dir_rename_ent->non_unique_new_path is true, which + * means there is no directory rename for us to use, + * which means it won't cause us any additional + * collisions. + */ + continue; + collision_ent = collision_find_entry(collisions, new_path); + if (!collision_ent) { + collision_ent = xcalloc(1, + sizeof(struct collision_entry)); + hashmap_entry_init(collision_ent, strhash(new_path)); + hashmap_put(collisions, collision_ent); + collision_ent->target_file = new_path; + } else { + free(new_path); + } + string_list_insert(&collision_ent->source_files, + pair->two->path); + } +} + +static char *check_for_directory_rename(struct merge_options *o, + const char *path, + struct tree *tree, + struct hashmap *dir_renames, + struct hashmap *dir_rename_exclusions, + struct hashmap *collisions, + int *clean_merge) +{ + char *new_path = NULL; + struct dir_rename_entry *entry = check_dir_renamed(path, dir_renames); + struct dir_rename_entry *oentry = NULL; + + if (!entry) + return new_path; + + /* + * This next part is a little weird. We do not want to do an + * implicit rename into a directory we renamed on our side, because + * that will result in a spurious rename/rename(1to2) conflict. An + * example: + * Base commit: dumbdir/afile, otherdir/bfile + * Side 1: smrtdir/afile, otherdir/bfile + * Side 2: dumbdir/afile, dumbdir/bfile + * Here, while working on Side 1, we could notice that otherdir was + * renamed/merged to dumbdir, and change the diff_filepair for + * otherdir/bfile into a rename into dumbdir/bfile. However, Side + * 2 will notice the rename from dumbdir to smrtdir, and do the + * transitive rename to move it from dumbdir/bfile to + * smrtdir/bfile. That gives us bfile in dumbdir vs being in + * smrtdir, a rename/rename(1to2) conflict. We really just want + * the file to end up in smrtdir. And the way to achieve that is + * to not let Side1 do the rename to dumbdir, since we know that is + * the source of one of our directory renames. + * + * That's why oentry and dir_rename_exclusions is here. + * + * As it turns out, this also prevents N-way transient rename + * confusion; See testcases 9c and 9d of t6043. + */ + oentry = dir_rename_find_entry(dir_rename_exclusions, entry->new_dir.buf); + if (oentry) { + output(o, 1, _("WARNING: Avoiding applying %s -> %s rename " + "to %s, because %s itself was renamed."), + entry->dir, entry->new_dir.buf, path, entry->new_dir.buf); + } else { + new_path = handle_path_level_conflicts(o, path, entry, + collisions, tree); + *clean_merge &= (new_path != NULL); + } + + return new_path; +} + +static void apply_directory_rename_modifications(struct merge_options *o, + struct diff_filepair *pair, + char *new_path, + struct rename *re, + struct tree *tree, + struct tree *o_tree, + struct tree *a_tree, + struct tree *b_tree, + struct string_list *entries, + int *clean) +{ + struct string_list_item *item; + int stage = (tree == a_tree ? 2 : 3); + int update_wd; + + /* + * In all cases where we can do directory rename detection, + * unpack_trees() will have read pair->two->path into the + * index and the working copy. We need to remove it so that + * we can instead place it at new_path. It is guaranteed to + * not be untracked (unpack_trees() would have errored out + * saying the file would have been overwritten), but it might + * be dirty, though. + */ + update_wd = !was_dirty(o, pair->two->path); + if (!update_wd) + output(o, 1, _("Refusing to lose dirty file at %s"), + pair->two->path); + remove_file(o, 1, pair->two->path, !update_wd); + + /* Find or create a new re->dst_entry */ + item = string_list_lookup(entries, new_path); + if (item) { + /* + * Since we're renaming on this side of history, and it's + * due to a directory rename on the other side of history + * (which we only allow when the directory in question no + * longer exists on the other side of history), the + * original entry for re->dst_entry is no longer + * necessary... + */ + re->dst_entry->processed = 1; + + /* + * ...because we'll be using this new one. + */ + re->dst_entry = item->util; + } else { + /* + * re->dst_entry is for the before-dir-rename path, and we + * need it to hold information for the after-dir-rename + * path. Before creating a new entry, we need to mark the + * old one as unnecessary (...unless it is shared by + * src_entry, i.e. this didn't use to be a rename, in which + * case we can just allow the normal processing to happen + * for it). + */ + if (pair->status == 'R') + re->dst_entry->processed = 1; + + re->dst_entry = insert_stage_data(new_path, + o_tree, a_tree, b_tree, + entries); + item = string_list_insert(entries, new_path); + item->util = re->dst_entry; + } + + /* + * Update the stage_data with the information about the path we are + * moving into place. That slot will be empty and available for us + * to write to because of the collision checks in + * handle_path_level_conflicts(). In other words, + * re->dst_entry->stages[stage].oid will be the null_oid, so it's + * open for us to write to. + * + * It may be tempting to actually update the index at this point as + * well, using update_stages_for_stage_data(), but as per the big + * "NOTE" in update_stages(), doing so will modify the current + * in-memory index which will break calls to would_lose_untracked() + * that we need to make. Instead, we need to just make sure that + * the various conflict_rename_*() functions update the index + * explicitly rather than relying on unpack_trees() to have done it. + */ + get_tree_entry(&tree->object.oid, + pair->two->path, + &re->dst_entry->stages[stage].oid, + &re->dst_entry->stages[stage].mode); + + /* Update pair status */ + if (pair->status == 'A') { + /* + * Recording rename information for this add makes it look + * like a rename/delete conflict. Make sure we can + * correctly handle this as an add that was moved to a new + * directory instead of reporting a rename/delete conflict. + */ + re->add_turned_into_rename = 1; + } + /* + * We don't actually look at pair->status again, but it seems + * pedagogically correct to adjust it. + */ + pair->status = 'R'; + + /* + * Finally, record the new location. + */ + pair->two->path = new_path; +} + +/* + * Get information of all renames which occurred in 'pairs', making use of + * any implicit directory renames inferred from the other side of history. + * We need the three trees in the merge ('o_tree', 'a_tree' and 'b_tree') + * to be able to associate the correct cache entries with the rename + * information; tree is always equal to either a_tree or b_tree. + */ +static struct string_list *get_renames(struct merge_options *o, + struct diff_queue_struct *pairs, + struct hashmap *dir_renames, + struct hashmap *dir_rename_exclusions, + struct tree *tree, + struct tree *o_tree, + struct tree *a_tree, + struct tree *b_tree, + struct string_list *entries, + int *clean_merge) +{ + int i; + struct hashmap collisions; + struct hashmap_iter iter; + struct collision_entry *e; + struct string_list *renames; + + compute_collisions(&collisions, dir_renames, pairs); + renames = xcalloc(1, sizeof(struct string_list)); + + for (i = 0; i < pairs->nr; ++i) { + struct string_list_item *item; + struct rename *re; + struct diff_filepair *pair = pairs->queue[i]; + char *new_path; /* non-NULL only with directory renames */ + + if (pair->status != 'A' && pair->status != 'R') { + diff_free_filepair(pair); + continue; + } + new_path = check_for_directory_rename(o, pair->two->path, tree, + dir_renames, + dir_rename_exclusions, + &collisions, + clean_merge); + if (pair->status != 'R' && !new_path) { + diff_free_filepair(pair); + continue; + } + + re = xmalloc(sizeof(*re)); + re->processed = 0; + re->add_turned_into_rename = 0; + re->pair = pair; + item = string_list_lookup(entries, re->pair->one->path); + if (!item) + re->src_entry = insert_stage_data(re->pair->one->path, + o_tree, a_tree, b_tree, entries); + else + re->src_entry = item->util; + + item = string_list_lookup(entries, re->pair->two->path); + if (!item) + re->dst_entry = insert_stage_data(re->pair->two->path, + o_tree, a_tree, b_tree, entries); + else + re->dst_entry = item->util; + item = string_list_insert(renames, pair->one->path); + item->util = re; + if (new_path) + apply_directory_rename_modifications(o, pair, new_path, + re, tree, o_tree, + a_tree, b_tree, + entries, + clean_merge); + } + + hashmap_iter_init(&collisions, &iter); + while ((e = hashmap_iter_next(&iter))) { + free(e->target_file); + string_list_clear(&e->source_files, 0); + } + hashmap_free(&collisions, 1); + return renames; +} + static int process_renames(struct merge_options *o, struct string_list *a_renames, struct string_list *b_renames) @@ -1538,7 +2495,7 @@ static int process_renames(struct merge_options *o, * add-source case). */ remove_file(o, 1, ren1_src, - renamed_stage == 2 || !was_tracked(ren1_src)); + renamed_stage == 2 || !was_tracked(o, ren1_src)); oidcpy(&src_other.oid, &ren1->src_entry->stages[other_stage].oid); @@ -1548,7 +2505,19 @@ static int process_renames(struct merge_options *o, dst_other.mode = ren1->dst_entry->stages[other_stage].mode; try_merge = 0; - if (oid_eq(&src_other.oid, &null_oid)) { + if (oid_eq(&src_other.oid, &null_oid) && + ren1->add_turned_into_rename) { + setup_rename_conflict_info(RENAME_DIR, + ren1->pair, + NULL, + branch1, + branch2, + ren1->dst_entry, + NULL, + o, + NULL, + NULL); + } else if (oid_eq(&src_other.oid, &null_oid)) { setup_rename_conflict_info(RENAME_DELETE, ren1->pair, NULL, @@ -1645,6 +2614,105 @@ cleanup_and_return: return clean_merge; } +struct rename_info { + struct string_list *head_renames; + struct string_list *merge_renames; +}; + +static void initial_cleanup_rename(struct diff_queue_struct *pairs, + struct hashmap *dir_renames) +{ + struct hashmap_iter iter; + struct dir_rename_entry *e; + + hashmap_iter_init(dir_renames, &iter); + while ((e = hashmap_iter_next(&iter))) { + free(e->dir); + strbuf_release(&e->new_dir); + /* possible_new_dirs already cleared in get_directory_renames */ + } + hashmap_free(dir_renames, 1); + free(dir_renames); + + free(pairs->queue); + free(pairs); +} + +static int handle_renames(struct merge_options *o, + struct tree *common, + struct tree *head, + struct tree *merge, + struct string_list *entries, + struct rename_info *ri) +{ + struct diff_queue_struct *head_pairs, *merge_pairs; + struct hashmap *dir_re_head, *dir_re_merge; + int clean = 1; + + ri->head_renames = NULL; + ri->merge_renames = NULL; + + if (!merge_detect_rename(o)) + return 1; + + head_pairs = get_diffpairs(o, common, head); + merge_pairs = get_diffpairs(o, common, merge); + + dir_re_head = get_directory_renames(head_pairs, head); + dir_re_merge = get_directory_renames(merge_pairs, merge); + + handle_directory_level_conflicts(o, + dir_re_head, head, + dir_re_merge, merge); + + ri->head_renames = get_renames(o, head_pairs, + dir_re_merge, dir_re_head, head, + common, head, merge, entries, + &clean); + if (clean < 0) + goto cleanup; + ri->merge_renames = get_renames(o, merge_pairs, + dir_re_head, dir_re_merge, merge, + common, head, merge, entries, + &clean); + if (clean < 0) + goto cleanup; + clean &= process_renames(o, ri->head_renames, ri->merge_renames); + +cleanup: + /* + * Some cleanup is deferred until cleanup_renames() because the + * data structures are still needed and referenced in + * process_entry(). But there are a few things we can free now. + */ + initial_cleanup_rename(head_pairs, dir_re_head); + initial_cleanup_rename(merge_pairs, dir_re_merge); + + return clean; +} + +static void final_cleanup_rename(struct string_list *rename) +{ + const struct rename *re; + int i; + + if (rename == NULL) + return; + + for (i = 0; i < rename->nr; i++) { + re = rename->items[i].util; + diff_free_filepair(re->pair); + } + string_list_clear(rename, 1); + free(rename); +} + +static void final_cleanup_renames(struct rename_info *re_info) +{ + final_cleanup_rename(re_info->head_renames); + final_cleanup_rename(re_info->merge_renames); +} + static struct object_id *stage_oid(const struct object_id *oid, unsigned mode) { return (is_null_oid(oid) || mode == 0) ? NULL: (struct object_id *)oid; @@ -1735,6 +2803,7 @@ static int handle_modify_delete(struct merge_options *o, static int merge_content(struct merge_options *o, const char *path, + int is_dirty, struct object_id *o_oid, int o_mode, struct object_id *a_oid, int a_mode, struct object_id *b_oid, int b_mode, @@ -1775,29 +2844,26 @@ static int merge_content(struct merge_options *o, S_ISGITLINK(pair1->two->mode))) df_conflict_remains = 1; } - if (merge_file_special_markers(o, &one, &a, &b, + if (merge_file_special_markers(o, &one, &a, &b, path, o->branch1, path1, o->branch2, path2, &mfi)) return -1; - if (mfi.clean && !df_conflict_remains && - oid_eq(&mfi.oid, a_oid) && mfi.mode == a_mode) { - int path_renamed_outside_HEAD; + /* + * We can skip updating the working tree file iff: + * a) The merge is clean + * b) The merge matches what was in HEAD (content, mode, pathname) + * c) The target path is usable (i.e. not involved in D/F conflict) + */ + if (mfi.clean && + was_tracked_and_matches(o, path, &mfi.oid, mfi.mode) && + !df_conflict_remains) { output(o, 3, _("Skipped %s (merged same as existing)"), path); - /* - * The content merge resulted in the same file contents we - * already had. We can return early if those file contents - * are recorded at the correct path (which may not be true - * if the merge involves a rename). - */ - path_renamed_outside_HEAD = !path2 || !strcmp(path, path2); - if (!path_renamed_outside_HEAD) { - add_cacheinfo(o, mfi.mode, &mfi.oid, path, - 0, (!o->call_depth), 0); - return mfi.clean; - } - } else - output(o, 2, _("Auto-merging %s"), path); + if (add_cacheinfo(o, mfi.mode, &mfi.oid, path, + 0, (!o->call_depth && !is_dirty), 0)) + return -1; + return mfi.clean; + } if (!mfi.clean) { if (S_ISGITLINK(mfi.mode)) @@ -1809,7 +2875,7 @@ static int merge_content(struct merge_options *o, return -1; } - if (df_conflict_remains) { + if (df_conflict_remains || is_dirty) { char *new_path; if (o->call_depth) { remove_file_from_cache(path); @@ -1818,7 +2884,7 @@ static int merge_content(struct merge_options *o, if (update_stages(o, path, &one, &a, &b)) return -1; } else { - int file_from_stage2 = was_tracked(path); + int file_from_stage2 = was_tracked(o, path); struct diff_filespec merged; oidcpy(&merged.oid, &mfi.oid); merged.mode = mfi.mode; @@ -1831,6 +2897,10 @@ static int merge_content(struct merge_options *o, } new_path = unique_path(o, path, rename_conflict_info->branch1); + if (is_dirty) { + output(o, 1, _("Refusing to lose dirty file at %s"), + path); + } output(o, 1, _("Adding as %s instead"), new_path); if (update_file(o, 0, &mfi.oid, mfi.mode, new_path)) { free(new_path); @@ -1840,7 +2910,20 @@ static int merge_content(struct merge_options *o, mfi.clean = 0; } else if (update_file(o, mfi.clean, &mfi.oid, mfi.mode, path)) return -1; - return mfi.clean; + return !is_dirty && mfi.clean; +} + +static int conflict_rename_normal(struct merge_options *o, + const char *path, + struct object_id *o_oid, unsigned int o_mode, + struct object_id *a_oid, unsigned int a_mode, + struct object_id *b_oid, unsigned int b_mode, + struct rename_conflict_info *ci) +{ + /* Merge the content and write it out */ + return merge_content(o, path, was_dirty(o, path), + o_oid, o_mode, a_oid, a_mode, b_oid, b_mode, + ci); } /* Per entry merge function */ @@ -1862,9 +2945,20 @@ static int process_entry(struct merge_options *o, switch (conflict_info->rename_type) { case RENAME_NORMAL: case RENAME_ONE_FILE_TO_ONE: - clean_merge = merge_content(o, path, - o_oid, o_mode, a_oid, a_mode, b_oid, b_mode, - conflict_info); + clean_merge = conflict_rename_normal(o, + path, + o_oid, o_mode, + a_oid, a_mode, + b_oid, b_mode, + conflict_info); + break; + case RENAME_DIR: + clean_merge = 1; + if (conflict_rename_dir(o, + conflict_info->pair1, + conflict_info->branch1, + conflict_info->branch2)) + clean_merge = -1; break; case RENAME_DELETE: clean_merge = 0; @@ -1952,7 +3046,8 @@ static int process_entry(struct merge_options *o, } else if (a_oid && b_oid) { /* Case C: Added in both (check for same permissions) and */ /* case D: Modified in both, but differently. */ - clean_merge = merge_content(o, path, + int is_dirty = 0; /* unpack_trees would have bailed if dirty */ + clean_merge = merge_content(o, path, is_dirty, o_oid, o_mode, a_oid, a_mode, b_oid, b_mode, NULL); } else if (!o_oid && !a_oid && !b_oid) { @@ -1993,7 +3088,7 @@ int merge_trees(struct merge_options *o, return 1; } - code = git_merge_trees(o->call_depth, common, head, merge); + code = git_merge_trees(o, common, head, merge); if (code != 0) { if (show(o, 4) || o->call_depth) @@ -2004,7 +3099,8 @@ int merge_trees(struct merge_options *o, } if (unmerged_cache()) { - struct string_list *entries, *re_head, *re_merge; + struct string_list *entries; + struct rename_info re_info; int i; /* * Only need the hashmap while processing entries, so @@ -2018,9 +3114,8 @@ int merge_trees(struct merge_options *o, get_files_dirs(o, merge); entries = get_unmerged(); - re_head = get_renames(o, head, common, head, merge, entries); - re_merge = get_renames(o, merge, common, head, merge, entries); - clean = process_renames(o, re_head, re_merge); + clean = handle_renames(o, common, head, merge, entries, + &re_info); record_df_conflict_files(o, entries); if (clean < 0) goto cleanup; @@ -2045,22 +3140,28 @@ int merge_trees(struct merge_options *o, } cleanup: - string_list_clear(re_merge, 0); - string_list_clear(re_head, 0); + final_cleanup_renames(&re_info); + string_list_clear(entries, 1); + free(entries); hashmap_free(&o->current_file_dir_set, 1); - free(re_merge); - free(re_head); - free(entries); - if (clean < 0) return clean; } else clean = 1; + /* Free the extra index left from git_merge_trees() */ + /* + * FIXME: Need to also free data allocated by + * setup_unpack_trees_porcelain() tucked away in o->unpack_opts.msgs, + * but the problem is that only half of it refers to dynamically + * allocated data, while the other half points at static strings. + */ + discard_index(&o->orig_index); + if (o->call_depth && !(*result = write_tree_from_memory(o))) return -1; @@ -2154,7 +3255,8 @@ int merge_recursive(struct merge_options *o, read_cache(); o->ancestor = "merged common ancestors"; - clean = merge_trees(o, h1->tree, h2->tree, merged_common_ancestors->tree, + clean = merge_trees(o, get_commit_tree(h1), get_commit_tree(h2), + get_commit_tree(merged_common_ancestors), &mrtree); if (clean < 0) { flush_output(o); @@ -2232,9 +3334,18 @@ int merge_recursive_generic(struct merge_options *o, static void merge_recursive_config(struct merge_options *o) { + char *value = NULL; git_config_get_int("merge.verbosity", &o->verbosity); git_config_get_int("diff.renamelimit", &o->diff_rename_limit); git_config_get_int("merge.renamelimit", &o->merge_rename_limit); + if (!git_config_get_string("diff.renames", &value)) { + o->diff_detect_rename = git_config_rename("diff.renames", value); + free(value); + } + if (!git_config_get_string("merge.renames", &value)) { + o->merge_detect_rename = git_config_rename("merge.renames", value); + free(value); + } git_config(git_xmerge_config, NULL); } @@ -2247,7 +3358,8 @@ void init_merge_options(struct merge_options *o) o->diff_rename_limit = -1; o->merge_rename_limit = -1; o->renormalize = 0; - o->detect_rename = 1; + o->diff_detect_rename = -1; + o->merge_detect_rename = -1; merge_recursive_config(o); merge_verbosity = getenv("GIT_MERGE_VERBOSITY"); if (merge_verbosity) @@ -2298,16 +3410,16 @@ int parse_merge_opt(struct merge_options *o, const char *s) else if (!strcmp(s, "no-renormalize")) o->renormalize = 0; else if (!strcmp(s, "no-renames")) - o->detect_rename = 0; + o->merge_detect_rename = 0; else if (!strcmp(s, "find-renames")) { - o->detect_rename = 1; + o->merge_detect_rename = 1; o->rename_score = 0; } else if (skip_prefix(s, "find-renames=", &arg) || skip_prefix(s, "rename-threshold=", &arg)) { if ((o->rename_score = parse_rename_score(&arg)) == -1 || *arg != 0) return -1; - o->detect_rename = 1; + o->merge_detect_rename = 1; } else return -1; diff --git a/merge-recursive.h b/merge-recursive.h index 80d69d1401..fa7bc6b683 100644 --- a/merge-recursive.h +++ b/merge-recursive.h @@ -1,6 +1,7 @@ #ifndef MERGE_RECURSIVE_H #define MERGE_RECURSIVE_H +#include "unpack-trees.h" #include "string-list.h" struct merge_options { @@ -17,7 +18,8 @@ struct merge_options { unsigned renormalize : 1; long xdl_opts; int verbosity; - int detect_rename; + int diff_detect_rename; + int merge_detect_rename; int diff_rename_limit; int merge_rename_limit; int rename_score; @@ -27,8 +29,41 @@ struct merge_options { struct strbuf obuf; struct hashmap current_file_dir_set; struct string_list df_conflict_file_set; + struct unpack_trees_options unpack_opts; + struct index_state orig_index; }; +/* + * For dir_rename_entry, directory names are stored as a full path from the + * toplevel of the repository and do not include a trailing '/'. Also: + * + * dir: original name of directory being renamed + * non_unique_new_dir: if true, could not determine new_dir + * new_dir: final name of directory being renamed + * possible_new_dirs: temporary used to help determine new_dir; see comments + * in get_directory_renames() for details + */ +struct dir_rename_entry { + struct hashmap_entry ent; /* must be the first member! */ + char *dir; + unsigned non_unique_new_dir:1; + struct strbuf new_dir; + struct string_list possible_new_dirs; +}; + +struct collision_entry { + struct hashmap_entry ent; /* must be the first member! */ + char *target_file; + struct string_list source_files; + unsigned reported_already:1; +}; + +static inline int merge_detect_rename(struct merge_options *o) +{ + return o->merge_detect_rename >= 0 ? o->merge_detect_rename : + o->diff_detect_rename >= 0 ? o->diff_detect_rename : 1; +} + /* merge_trees() but with recursive ancestor consolidation */ int merge_recursive(struct merge_options *o, struct commit *h1, diff --git a/notes-merge.c b/notes-merge.c index 720e24784c..d613e06574 100644 --- a/notes-merge.c +++ b/notes-merge.c @@ -600,14 +600,14 @@ int notes_merge(struct notes_merge_options *o, printf("No merge base found; doing history-less merge\n"); } else if (!bases->next) { base_oid = &bases->item->object.oid; - base_tree_oid = &bases->item->tree->object.oid; + base_tree_oid = get_commit_tree_oid(bases->item); if (o->verbosity >= 4) printf("One merge base found (%.7s)\n", oid_to_hex(base_oid)); } else { /* TODO: How to handle multiple merge-bases? */ base_oid = &bases->item->object.oid; - base_tree_oid = &bases->item->tree->object.oid; + base_tree_oid = get_commit_tree_oid(bases->item); if (o->verbosity >= 3) printf("Multiple merge bases found. Using the first " "(%.7s)\n", oid_to_hex(base_oid)); @@ -634,8 +634,9 @@ int notes_merge(struct notes_merge_options *o, goto found_result; } - result = merge_from_diffs(o, base_tree_oid, &local->tree->object.oid, - &remote->tree->object.oid, local_tree); + result = merge_from_diffs(o, base_tree_oid, + get_commit_tree_oid(local), + get_commit_tree_oid(remote), local_tree); if (result != 0) { /* non-trivial merge (with or without conflicts) */ /* Commit (partial) result */ diff --git a/object-store.h b/object-store.h index fef33f345f..d683112fd7 100644 --- a/object-store.h +++ b/object-store.h @@ -1,6 +1,8 @@ #ifndef OBJECT_STORE_H #define OBJECT_STORE_H +#include "oidmap.h" + struct alternate_object_database { struct alternate_object_database *next; @@ -69,8 +71,10 @@ struct packed_git { int index_version; time_t mtime; int pack_fd; + int index; /* for builtin/pack-objects.c */ unsigned pack_local:1, pack_keep:1, + pack_keep_in_core:1, freshened:1, do_not_close:1, pack_promisor:1; @@ -94,6 +98,12 @@ struct raw_object_store { struct alternate_object_database **alt_odb_tail; /* + * Objects that should be substituted by other objects + * (see git-replace(1)). + */ + struct oidmap *replace_map; + + /* * private data * * should only be accessed directly by packfile.c @@ -1,5 +1,6 @@ #include "cache.h" #include "object.h" +#include "replace-object.h" #include "blob.h" #include "tree.h" #include "commit.h" @@ -246,7 +247,7 @@ struct object *parse_object(const struct object_id *oid) unsigned long size; enum object_type type; int eaten; - const struct object_id *repl = lookup_replace_object(oid); + const struct object_id *repl = lookup_replace_object(the_repository, oid); void *buffer; struct object *obj; @@ -256,7 +257,7 @@ struct object *parse_object(const struct object_id *oid) if ((obj && obj->type == OBJ_BLOB && has_object_file(oid)) || (!obj && has_object_file(oid) && - oid_object_info(oid, NULL) == OBJ_BLOB)) { + oid_object_info(the_repository, oid, NULL) == OBJ_BLOB)) { if (check_object_signature(repl, NULL, 0, NULL) < 0) { error("sha1 mismatch %s", oid_to_hex(oid)); return NULL; @@ -480,6 +481,9 @@ void raw_object_store_clear(struct raw_object_store *o) FREE_AND_NULL(o->objectdir); FREE_AND_NULL(o->alternate_db); + oidmap_free(o->replace_map, 1); + FREE_AND_NULL(o->replace_map); + free_alt_odbs(o); o->alt_odb_tail = NULL; @@ -25,7 +25,6 @@ struct object_array { #define OBJECT_ARRAY_INIT { 0, 0, NULL } -#define TYPE_BITS 3 /* * object flag allocation: * revision.h: 0---------10 26 diff --git a/pack-bitmap-write.c b/pack-bitmap-write.c index 3c7b5edda8..7b2dc3e7dc 100644 --- a/pack-bitmap-write.c +++ b/pack-bitmap-write.c @@ -48,7 +48,8 @@ void bitmap_writer_show_progress(int show) /** * Build the initial type index for the packfile */ -void bitmap_writer_build_type_index(struct pack_idx_entry **index, +void bitmap_writer_build_type_index(struct packing_data *to_pack, + struct pack_idx_entry **index, uint32_t index_nr) { uint32_t i; @@ -57,23 +58,25 @@ void bitmap_writer_build_type_index(struct pack_idx_entry **index, writer.trees = ewah_new(); writer.blobs = ewah_new(); writer.tags = ewah_new(); + ALLOC_ARRAY(to_pack->in_pack_pos, to_pack->nr_objects); for (i = 0; i < index_nr; ++i) { struct object_entry *entry = (struct object_entry *)index[i]; enum object_type real_type; - entry->in_pack_pos = i; + oe_set_in_pack_pos(to_pack, entry, i); - switch (entry->type) { + switch (oe_type(entry)) { case OBJ_COMMIT: case OBJ_TREE: case OBJ_BLOB: case OBJ_TAG: - real_type = entry->type; + real_type = oe_type(entry); break; default: - real_type = oid_object_info(&entry->idx.oid, NULL); + real_type = oid_object_info(the_repository, + &entry->idx.oid, NULL); break; } @@ -97,7 +100,7 @@ void bitmap_writer_build_type_index(struct pack_idx_entry **index, default: die("Missing type information for %s (%d/%d)", oid_to_hex(&entry->idx.oid), real_type, - entry->type); + oe_type(entry)); } } } @@ -146,7 +149,7 @@ static uint32_t find_object_pos(const unsigned char *sha1) "(object %s is missing)", sha1_to_hex(sha1)); } - return entry->in_pack_pos; + return oe_in_pack_pos(writer.to_pack, entry); } static void show_object(struct object *object, const char *name, void *data) @@ -534,7 +537,7 @@ void bitmap_writer_finish(struct pack_idx_entry **index, if (options & BITMAP_OPT_HASH_CACHE) write_hash_cache(f, index, index_nr); - hashclose(f, NULL, CSUM_FSYNC); + finalize_hashfile(f, NULL, CSUM_HASH_IN_STREAM | CSUM_FSYNC | CSUM_CLOSE); if (adjust_shared_perm(tmp_file.buf)) die_errno("unable to make temporary bitmap file readable"); diff --git a/pack-bitmap.c b/pack-bitmap.c index a4837af0f4..06771113fb 100644 --- a/pack-bitmap.c +++ b/pack-bitmap.c @@ -1033,7 +1033,7 @@ int rebuild_existing_bitmaps(struct packing_data *mapping, oe = packlist_find(mapping, sha1, NULL); if (oe) - reposition[i] = oe->in_pack_pos + 1; + reposition[i] = oe_in_pack_pos(mapping, oe) + 1; } rebuild = bitmap_new(); diff --git a/pack-bitmap.h b/pack-bitmap.h index 3742a00e14..5ded2f139a 100644 --- a/pack-bitmap.h +++ b/pack-bitmap.h @@ -44,7 +44,9 @@ int rebuild_existing_bitmaps(struct packing_data *mapping, khash_sha1 *reused_bi void bitmap_writer_show_progress(int show); void bitmap_writer_set_checksum(unsigned char *sha1); -void bitmap_writer_build_type_index(struct pack_idx_entry **index, uint32_t index_nr); +void bitmap_writer_build_type_index(struct packing_data *to_pack, + struct pack_idx_entry **index, + uint32_t index_nr); void bitmap_writer_reuse_bitmaps(struct packing_data *to_pack); void bitmap_writer_select_commits(struct commit **indexed_commits, unsigned int indexed_commits_nr, int max_bitmaps); diff --git a/pack-check.c b/pack-check.c index 385d964bdd..d3a57df34f 100644 --- a/pack-check.c +++ b/pack-check.c @@ -1,4 +1,5 @@ #include "cache.h" +#include "repository.h" #include "pack.h" #include "pack-revindex.h" #include "progress.h" @@ -134,7 +135,7 @@ static int verify_packfile(struct packed_git *p, data = NULL; data_valid = 0; } else { - data = unpack_entry(p, entries[i].offset, &type, &size); + data = unpack_entry(the_repository, p, entries[i].offset, &type, &size); data_valid = 1; } diff --git a/pack-objects.c b/pack-objects.c index 0acab27133..92708522e7 100644 --- a/pack-objects.c +++ b/pack-objects.c @@ -2,6 +2,8 @@ #include "object.h" #include "pack.h" #include "pack-objects.h" +#include "packfile.h" +#include "config.h" static uint32_t locate_object_entry_hash(struct packing_data *pdata, const unsigned char *sha1, @@ -86,6 +88,66 @@ struct object_entry *packlist_find(struct packing_data *pdata, return &pdata->objects[pdata->index[i] - 1]; } +static void prepare_in_pack_by_idx(struct packing_data *pdata) +{ + struct packed_git **mapping, *p; + int cnt = 0, nr = 1U << OE_IN_PACK_BITS; + + ALLOC_ARRAY(mapping, nr); + /* + * oe_in_pack() on an all-zero'd object_entry + * (i.e. in_pack_idx also zero) should return NULL. + */ + mapping[cnt++] = NULL; + for (p = get_packed_git(the_repository); p; p = p->next, cnt++) { + if (cnt == nr) { + free(mapping); + return; + } + p->index = cnt; + mapping[cnt] = p; + } + pdata->in_pack_by_idx = mapping; +} + +/* + * A new pack appears after prepare_in_pack_by_idx() has been + * run. This is likely a race. + * + * We could map this new pack to in_pack_by_idx[] array, but then we + * have to deal with full array anyway. And since it's hard to test + * this fall back code, just stay simple and fall back to using + * in_pack[] array. + */ +void oe_map_new_pack(struct packing_data *pack, + struct packed_git *p) +{ + uint32_t i; + + REALLOC_ARRAY(pack->in_pack, pack->nr_alloc); + + for (i = 0; i < pack->nr_objects; i++) + pack->in_pack[i] = oe_in_pack(pack, pack->objects + i); + + FREE_AND_NULL(pack->in_pack_by_idx); +} + +/* assume pdata is already zero'd by caller */ +void prepare_packing_data(struct packing_data *pdata) +{ + if (git_env_bool("GIT_TEST_FULL_IN_PACK_ARRAY", 0)) { + /* + * do not initialize in_pack_by_idx[] to force the + * slow path in oe_in_pack() + */ + } else { + prepare_in_pack_by_idx(pdata); + } + + pdata->oe_size_limit = git_env_ulong("GIT_TEST_OE_SIZE", + 1U << OE_SIZE_BITS); +} + struct object_entry *packlist_alloc(struct packing_data *pdata, const unsigned char *sha1, uint32_t index_pos) @@ -95,6 +157,9 @@ struct object_entry *packlist_alloc(struct packing_data *pdata, if (pdata->nr_objects >= pdata->nr_alloc) { pdata->nr_alloc = (pdata->nr_alloc + 1024) * 3 / 2; REALLOC_ARRAY(pdata->objects, pdata->nr_alloc); + + if (!pdata->in_pack_by_idx) + REALLOC_ARRAY(pdata->in_pack, pdata->nr_alloc); } new_entry = pdata->objects + pdata->nr_objects++; @@ -107,5 +172,8 @@ struct object_entry *packlist_alloc(struct packing_data *pdata, else pdata->index[index_pos] = pdata->nr_objects; + if (pdata->in_pack) + pdata->in_pack[pdata->nr_objects - 1] = NULL; + return new_entry; } diff --git a/pack-objects.h b/pack-objects.h index 03f1191659..edf74dabdd 100644 --- a/pack-objects.h +++ b/pack-objects.h @@ -1,45 +1,125 @@ #ifndef PACK_OBJECTS_H #define PACK_OBJECTS_H +#include "object-store.h" + +#define DEFAULT_DELTA_CACHE_SIZE (256 * 1024 * 1024) + +#define OE_DFS_STATE_BITS 2 +#define OE_DEPTH_BITS 12 +#define OE_IN_PACK_BITS 10 +#define OE_Z_DELTA_BITS 20 +/* + * Note that oe_set_size() becomes expensive when the given size is + * above this limit. Don't lower it too much. + */ +#define OE_SIZE_BITS 31 +#define OE_DELTA_SIZE_BITS 20 + +/* + * State flags for depth-first search used for analyzing delta cycles. + * + * The depth is measured in delta-links to the base (so if A is a delta + * against B, then A has a depth of 1, and B a depth of 0). + */ +enum dfs_state { + DFS_NONE = 0, + DFS_ACTIVE, + DFS_DONE, + DFS_NUM_STATES +}; + +/* + * The size of struct nearly determines pack-objects's memory + * consumption. This struct is packed tight for that reason. When you + * add or reorder something in this struct, think a bit about this. + * + * basic object info + * ----------------- + * idx.oid is filled up before delta searching starts. idx.crc32 is + * only valid after the object is written out and will be used for + * generating the index. idx.offset will be both gradually set and + * used in writing phase (base objects get offset first, then deltas + * refer to them) + * + * "size" is the uncompressed object size. Compressed size of the raw + * data for an object in a pack is not stored anywhere but is computed + * and made available when reverse .idx is made. Note that when a + * delta is reused, "size" is the uncompressed _delta_ size, not the + * canonical one after the delta has been applied. + * + * "hash" contains a path name hash which is used for sorting the + * delta list and also during delta searching. Once prepare_pack() + * returns it's no longer needed. + * + * source pack info + * ---------------- + * The (in_pack, in_pack_offset) tuple contains the location of the + * object in the source pack. in_pack_header_size allows quickly + * skipping the header and going straight to the zlib stream. + * + * "type" and "in_pack_type" both describe object type. in_pack_type + * may contain a delta type, while type is always the canonical type. + * + * deltas + * ------ + * Delta links (delta, delta_child and delta_sibling) are created to + * reflect that delta graph from the source pack then updated or added + * during delta searching phase when we find better deltas. + * + * delta_child and delta_sibling are last needed in + * compute_write_order(). "delta" and "delta_size" must remain valid + * at object writing phase in case the delta is not cached. + * + * If a delta is cached in memory and is compressed, delta_data points + * to the data and z_delta_size contains the compressed size. If it's + * uncompressed [1], z_delta_size must be zero. delta_size is always + * the uncompressed size and must be valid even if the delta is not + * cached. + * + * [1] during try_delta phase we don't bother with compressing because + * the delta could be quickly replaced with a better one. + */ struct object_entry { struct pack_idx_entry idx; - unsigned long size; /* uncompressed size */ - struct packed_git *in_pack; /* already in pack */ - off_t in_pack_offset; - struct object_entry *delta; /* delta base object */ - struct object_entry *delta_child; /* deltified objects who bases me */ - struct object_entry *delta_sibling; /* other deltified objects who - * uses the same base as me - */ void *delta_data; /* cached delta (uncompressed) */ - unsigned long delta_size; /* delta data size (uncompressed) */ - unsigned long z_delta_size; /* delta data size (compressed) */ - enum object_type type; - enum object_type in_pack_type; /* could be delta */ + off_t in_pack_offset; uint32_t hash; /* name hint hash */ - unsigned int in_pack_pos; - unsigned char in_pack_header_size; + unsigned size_:OE_SIZE_BITS; + unsigned size_valid:1; + uint32_t delta_idx; /* delta base object */ + uint32_t delta_child_idx; /* deltified objects who bases me */ + uint32_t delta_sibling_idx; /* other deltified objects who + * uses the same base as me + */ + unsigned delta_size_:OE_DELTA_SIZE_BITS; /* delta data size (uncompressed) */ + unsigned delta_size_valid:1; + unsigned in_pack_idx:OE_IN_PACK_BITS; /* already in pack */ + unsigned z_delta_size:OE_Z_DELTA_BITS; + unsigned type_valid:1; + unsigned type_:TYPE_BITS; + unsigned no_try_delta:1; + unsigned in_pack_type:TYPE_BITS; /* could be delta */ unsigned preferred_base:1; /* * we do not pack this, but is available * to be used as the base object to delta * objects against. */ - unsigned no_try_delta:1; unsigned tagged:1; /* near the very tip of refs */ unsigned filled:1; /* assigned write-order */ + unsigned dfs_state:OE_DFS_STATE_BITS; + unsigned char in_pack_header_size; + unsigned depth:OE_DEPTH_BITS; /* - * State flags for depth-first search used for analyzing delta cycles. + * pahole results on 64-bit linux (gcc and clang) + * + * size: 80, bit_padding: 20 bits, holes: 8 bits + * + * and on 32-bit (gcc) * - * The depth is measured in delta-links to the base (so if A is a delta - * against B, then A has a depth of 1, and B a depth of 0). + * size: 76, bit_padding: 20 bits, holes: 8 bits */ - enum { - DFS_NONE = 0, - DFS_ACTIVE, - DFS_DONE - } dfs_state; - int depth; }; struct packing_data { @@ -48,8 +128,22 @@ struct packing_data { int32_t *index; uint32_t index_size; + + unsigned int *in_pack_pos; + + /* + * Only one of these can be non-NULL and they have different + * sizes. if in_pack_by_idx is allocated, oe_in_pack() returns + * the pack of an object using in_pack_idx field. If not, + * in_pack[] array is used the same way as in_pack_pos[] + */ + struct packed_git **in_pack_by_idx; + struct packed_git **in_pack; + + uintmax_t oe_size_limit; }; +void prepare_packing_data(struct packing_data *pdata); struct object_entry *packlist_alloc(struct packing_data *pdata, const unsigned char *sha1, uint32_t index_pos); @@ -78,4 +172,178 @@ static inline uint32_t pack_name_hash(const char *name) return hash; } +static inline enum object_type oe_type(const struct object_entry *e) +{ + return e->type_valid ? e->type_ : OBJ_BAD; +} + +static inline void oe_set_type(struct object_entry *e, + enum object_type type) +{ + if (type >= OBJ_ANY) + BUG("OBJ_ANY cannot be set in pack-objects code"); + + e->type_valid = type >= OBJ_NONE; + e->type_ = (unsigned)type; +} + +static inline unsigned int oe_in_pack_pos(const struct packing_data *pack, + const struct object_entry *e) +{ + return pack->in_pack_pos[e - pack->objects]; +} + +static inline void oe_set_in_pack_pos(const struct packing_data *pack, + const struct object_entry *e, + unsigned int pos) +{ + pack->in_pack_pos[e - pack->objects] = pos; +} + +static inline struct packed_git *oe_in_pack(const struct packing_data *pack, + const struct object_entry *e) +{ + if (pack->in_pack_by_idx) + return pack->in_pack_by_idx[e->in_pack_idx]; + else + return pack->in_pack[e - pack->objects]; +} + +void oe_map_new_pack(struct packing_data *pack, + struct packed_git *p); +static inline void oe_set_in_pack(struct packing_data *pack, + struct object_entry *e, + struct packed_git *p) +{ + if (!p->index) + oe_map_new_pack(pack, p); + if (pack->in_pack_by_idx) + e->in_pack_idx = p->index; + else + pack->in_pack[e - pack->objects] = p; +} + +static inline struct object_entry *oe_delta( + const struct packing_data *pack, + const struct object_entry *e) +{ + if (e->delta_idx) + return &pack->objects[e->delta_idx - 1]; + return NULL; +} + +static inline void oe_set_delta(struct packing_data *pack, + struct object_entry *e, + struct object_entry *delta) +{ + if (delta) + e->delta_idx = (delta - pack->objects) + 1; + else + e->delta_idx = 0; +} + +static inline struct object_entry *oe_delta_child( + const struct packing_data *pack, + const struct object_entry *e) +{ + if (e->delta_child_idx) + return &pack->objects[e->delta_child_idx - 1]; + return NULL; +} + +static inline void oe_set_delta_child(struct packing_data *pack, + struct object_entry *e, + struct object_entry *delta) +{ + if (delta) + e->delta_child_idx = (delta - pack->objects) + 1; + else + e->delta_child_idx = 0; +} + +static inline struct object_entry *oe_delta_sibling( + const struct packing_data *pack, + const struct object_entry *e) +{ + if (e->delta_sibling_idx) + return &pack->objects[e->delta_sibling_idx - 1]; + return NULL; +} + +static inline void oe_set_delta_sibling(struct packing_data *pack, + struct object_entry *e, + struct object_entry *delta) +{ + if (delta) + e->delta_sibling_idx = (delta - pack->objects) + 1; + else + e->delta_sibling_idx = 0; +} + +unsigned long oe_get_size_slow(struct packing_data *pack, + const struct object_entry *e); +static inline unsigned long oe_size(struct packing_data *pack, + const struct object_entry *e) +{ + if (e->size_valid) + return e->size_; + + return oe_get_size_slow(pack, e); +} + +static inline int oe_size_less_than(struct packing_data *pack, + const struct object_entry *lhs, + unsigned long rhs) +{ + if (lhs->size_valid) + return lhs->size_ < rhs; + if (rhs < pack->oe_size_limit) /* rhs < 2^x <= lhs ? */ + return 0; + return oe_get_size_slow(pack, lhs) < rhs; +} + +static inline int oe_size_greater_than(struct packing_data *pack, + const struct object_entry *lhs, + unsigned long rhs) +{ + if (lhs->size_valid) + return lhs->size_ > rhs; + if (rhs < pack->oe_size_limit) /* rhs < 2^x <= lhs ? */ + return 1; + return oe_get_size_slow(pack, lhs) > rhs; +} + +static inline void oe_set_size(struct packing_data *pack, + struct object_entry *e, + unsigned long size) +{ + if (size < pack->oe_size_limit) { + e->size_ = size; + e->size_valid = 1; + } else { + e->size_valid = 0; + if (oe_get_size_slow(pack, e) != size) + BUG("'size' is supposed to be the object size!"); + } +} + +static inline unsigned long oe_delta_size(struct packing_data *pack, + const struct object_entry *e) +{ + if (e->delta_size_valid) + return e->delta_size_; + return oe_size(pack, e); +} + +static inline void oe_set_delta_size(struct packing_data *pack, + struct object_entry *e, + unsigned long size) +{ + e->delta_size_ = size; + e->delta_size_valid = e->delta_size_ == size; + if (!e->delta_size_valid && size != oe_size(pack, e)) + BUG("this can only happen in check_object() " + "where delta size is the same as entry size"); +} + #endif diff --git a/pack-write.c b/pack-write.c index d775c7406d..a9d46bc03f 100644 --- a/pack-write.c +++ b/pack-write.c @@ -170,8 +170,9 @@ const char *write_idx_file(const char *index_name, struct pack_idx_entry **objec } hashwrite(f, sha1, the_hash_algo->rawsz); - hashclose(f, NULL, ((opts->flags & WRITE_IDX_VERIFY) - ? CSUM_CLOSE : CSUM_FSYNC)); + finalize_hashfile(f, NULL, CSUM_HASH_IN_STREAM | CSUM_CLOSE | + ((opts->flags & WRITE_IDX_VERIFY) + ? 0 : CSUM_FSYNC)); return index_name; } diff --git a/packfile.c b/packfile.c index 9df0dab44d..d625481b7a 100644 --- a/packfile.c +++ b/packfile.c @@ -304,7 +304,7 @@ void close_pack_index(struct packed_git *p) } } -static void close_pack(struct packed_git *p) +void close_pack(struct packed_git *p) { close_pack_windows(p); close_pack_fd(p); @@ -1104,7 +1104,9 @@ static const unsigned char *get_delta_base_sha1(struct packed_git *p, return NULL; } -static int retry_bad_packed_offset(struct packed_git *p, off_t obj_offset) +static int retry_bad_packed_offset(struct repository *r, + struct packed_git *p, + off_t obj_offset) { int type; struct revindex_entry *revidx; @@ -1114,7 +1116,7 @@ static int retry_bad_packed_offset(struct packed_git *p, off_t obj_offset) return OBJ_BAD; nth_packed_object_oid(&oid, p, revidx->nr); mark_bad_packed_object(p, oid.hash); - type = oid_object_info(&oid, NULL); + type = oid_object_info(r, &oid, NULL); if (type <= OBJ_NONE) return OBJ_BAD; return type; @@ -1122,7 +1124,8 @@ static int retry_bad_packed_offset(struct packed_git *p, off_t obj_offset) #define POI_STACK_PREALLOC 64 -static enum object_type packed_to_object_type(struct packed_git *p, +static enum object_type packed_to_object_type(struct repository *r, + struct packed_git *p, off_t obj_offset, enum object_type type, struct pack_window **w_curs, @@ -1153,7 +1156,7 @@ static enum object_type packed_to_object_type(struct packed_git *p, if (type <= OBJ_NONE) { /* If getting the base itself fails, we first * retry the base, otherwise unwind */ - type = retry_bad_packed_offset(p, base_offset); + type = retry_bad_packed_offset(r, p, base_offset); if (type > OBJ_NONE) goto out; goto unwind; @@ -1181,7 +1184,7 @@ out: unwind: while (poi_stack_nr) { obj_offset = poi_stack[--poi_stack_nr]; - type = retry_bad_packed_offset(p, obj_offset); + type = retry_bad_packed_offset(r, p, obj_offset); if (type > OBJ_NONE) goto out; } @@ -1268,14 +1271,15 @@ static void detach_delta_base_cache_entry(struct delta_base_cache_entry *ent) free(ent); } -static void *cache_or_unpack_entry(struct packed_git *p, off_t base_offset, - unsigned long *base_size, enum object_type *type) +static void *cache_or_unpack_entry(struct repository *r, struct packed_git *p, + off_t base_offset, unsigned long *base_size, + enum object_type *type) { struct delta_base_cache_entry *ent; ent = get_delta_base_cache_entry(p, base_offset); if (!ent) - return unpack_entry(p, base_offset, type, base_size); + return unpack_entry(r, p, base_offset, type, base_size); if (type) *type = ent->type; @@ -1329,8 +1333,8 @@ static void add_delta_base_cache(struct packed_git *p, off_t base_offset, hashmap_add(&delta_base_cache, ent); } -int packed_object_info(struct packed_git *p, off_t obj_offset, - struct object_info *oi) +int packed_object_info(struct repository *r, struct packed_git *p, + off_t obj_offset, struct object_info *oi) { struct pack_window *w_curs = NULL; unsigned long size; @@ -1342,7 +1346,7 @@ int packed_object_info(struct packed_git *p, off_t obj_offset, * a "real" type later if the caller is interested. */ if (oi->contentp) { - *oi->contentp = cache_or_unpack_entry(p, obj_offset, oi->sizep, + *oi->contentp = cache_or_unpack_entry(r, p, obj_offset, oi->sizep, &type); if (!*oi->contentp) type = OBJ_BAD; @@ -1376,8 +1380,8 @@ int packed_object_info(struct packed_git *p, off_t obj_offset, if (oi->typep || oi->type_name) { enum object_type ptot; - ptot = packed_to_object_type(p, obj_offset, type, &w_curs, - curpos); + ptot = packed_to_object_type(r, p, obj_offset, + type, &w_curs, curpos); if (oi->typep) *oi->typep = ptot; if (oi->type_name) { @@ -1465,7 +1469,9 @@ struct unpack_entry_stack_ent { unsigned long size; }; -static void *read_object(const struct object_id *oid, enum object_type *type, +static void *read_object(struct repository *r, + const struct object_id *oid, + enum object_type *type, unsigned long *size) { struct object_info oi = OBJECT_INFO_INIT; @@ -1474,12 +1480,12 @@ static void *read_object(const struct object_id *oid, enum object_type *type, oi.sizep = size; oi.contentp = &content; - if (oid_object_info_extended(oid, &oi, 0) < 0) + if (oid_object_info_extended(r, oid, &oi, 0) < 0) return NULL; return content; } -void *unpack_entry(struct packed_git *p, off_t obj_offset, +void *unpack_entry(struct repository *r, struct packed_git *p, off_t obj_offset, enum object_type *final_type, unsigned long *final_size) { struct pack_window *w_curs = NULL; @@ -1610,7 +1616,7 @@ void *unpack_entry(struct packed_git *p, off_t obj_offset, oid_to_hex(&base_oid), (uintmax_t)obj_offset, p->pack_name); mark_bad_packed_object(p, base_oid.hash); - base = read_object(&base_oid, &type, &base_size); + base = read_object(r, &base_oid, &type, &base_size); external_base = base; } } @@ -1869,7 +1875,7 @@ int has_pack_index(const unsigned char *sha1) return 1; } -static int for_each_object_in_pack(struct packed_git *p, each_packed_object_fn cb, void *data) +int for_each_object_in_pack(struct packed_git *p, each_packed_object_fn cb, void *data) { uint32_t i; int r = 0; @@ -1944,7 +1950,7 @@ static int add_promisor_object(const struct object_id *oid, struct commit *commit = (struct commit *) obj; struct commit_list *parents = commit->parents; - oidset_insert(set, &commit->tree->object.oid); + oidset_insert(set, get_commit_tree_oid(commit)); for (; parents; parents = parents->next) oidset_insert(set, &parents->item->object.oid); } else if (obj->type == OBJ_TAG) { diff --git a/packfile.h b/packfile.h index a92c0b241c..bfd0b5399d 100644 --- a/packfile.h +++ b/packfile.h @@ -65,6 +65,7 @@ extern void close_pack_index(struct packed_git *); extern unsigned char *use_pack(struct packed_git *, struct pack_window **, off_t, unsigned long *); extern void close_pack_windows(struct packed_git *); +extern void close_pack(struct packed_git *); extern void close_all_packs(struct raw_object_store *o); extern void unuse_pack(struct pack_window **); extern void clear_delta_base_cache(void); @@ -115,7 +116,7 @@ extern off_t nth_packed_object_offset(const struct packed_git *, uint32_t n); extern off_t find_pack_entry_one(const unsigned char *sha1, struct packed_git *); extern int is_pack_valid(struct packed_git *); -extern void *unpack_entry(struct packed_git *, off_t, enum object_type *, unsigned long *); +extern void *unpack_entry(struct repository *r, struct packed_git *, off_t, enum object_type *, unsigned long *); extern unsigned long unpack_object_header_buffer(const unsigned char *buf, unsigned long len, enum object_type *type, unsigned long *sizep); extern unsigned long get_size_from_delta(struct packed_git *, struct pack_window **, off_t); extern int unpack_object_header(struct packed_git *, struct pack_window **, off_t *, unsigned long *); @@ -125,7 +126,9 @@ extern void release_pack_memory(size_t); /* global flag to enable extra checks when accessing packed objects */ extern int do_check_packed_object_crc; -extern int packed_object_info(struct packed_git *pack, off_t offset, struct object_info *); +extern int packed_object_info(struct repository *r, + struct packed_git *pack, + off_t offset, struct object_info *); extern void mark_bad_packed_object(struct packed_git *p, const unsigned char *sha1); extern const struct packed_git *has_packed_and_bad(const unsigned char *sha1); @@ -154,6 +157,7 @@ typedef int each_packed_object_fn(const struct object_id *oid, struct packed_git *pack, uint32_t pos, void *data); +extern int for_each_object_in_pack(struct packed_git *p, each_packed_object_fn, void *data); extern int for_each_packed_object(each_packed_object_fn, void *, unsigned flags); /* @@ -109,10 +109,15 @@ void setup_pager(void) return; /* - * force computing the width of the terminal before we redirect - * the standard output to the pager. + * After we redirect standard output, we won't be able to use an ioctl + * to get the terminal size. Let's grab it now, and then set $COLUMNS + * to communicate it to any sub-processes. */ - (void) term_columns(); + { + char buf[64]; + xsnprintf(buf, sizeof(buf), "%d", term_columns()); + setenv("COLUMNS", buf, 0); + } setenv("GIT_PAGER_IN_USE", "true", 1); diff --git a/parse-options-cb.c b/parse-options-cb.c index c6679cb2cd..0f9f311a7a 100644 --- a/parse-options-cb.c +++ b/parse-options-cb.c @@ -38,7 +38,11 @@ int parse_opt_approxidate_cb(const struct option *opt, const char *arg, int parse_opt_expiry_date_cb(const struct option *opt, const char *arg, int unset) { - return parse_expiry_date(arg, (timestamp_t *)opt->value); + if (unset) + arg = "never"; + if (parse_expiry_date(arg, (timestamp_t *)opt->value)) + die(_("malformed expiration date '%s'"), arg); + return 0; } int parse_opt_color_flag_cb(const struct option *opt, const char *arg, @@ -1306,7 +1306,7 @@ static int only_spaces_and_periods(const char *path, size_t len, size_t skip) int is_ntfs_dotgit(const char *name) { - int len; + size_t len; for (len = 0; ; len++) if (!name[len] || name[len] == '\\' || is_dir_sep(name[len])) { @@ -1323,6 +1323,90 @@ int is_ntfs_dotgit(const char *name) } } +static int is_ntfs_dot_generic(const char *name, + const char *dotgit_name, + size_t len, + const char *dotgit_ntfs_shortname_prefix) +{ + int saw_tilde; + size_t i; + + if ((name[0] == '.' && !strncasecmp(name + 1, dotgit_name, len))) { + i = len + 1; +only_spaces_and_periods: + for (;;) { + char c = name[i++]; + if (!c) + return 1; + if (c != ' ' && c != '.') + return 0; + } + } + + /* + * Is it a regular NTFS short name, i.e. shortened to 6 characters, + * followed by ~1, ... ~4? + */ + if (!strncasecmp(name, dotgit_name, 6) && name[6] == '~' && + name[7] >= '1' && name[7] <= '4') { + i = 8; + goto only_spaces_and_periods; + } + + /* + * Is it a fall-back NTFS short name (for details, see + * https://en.wikipedia.org/wiki/8.3_filename? + */ + for (i = 0, saw_tilde = 0; i < 8; i++) + if (name[i] == '\0') + return 0; + else if (saw_tilde) { + if (name[i] < '0' || name[i] > '9') + return 0; + } else if (name[i] == '~') { + if (name[++i] < '1' || name[i] > '9') + return 0; + saw_tilde = 1; + } else if (i >= 6) + return 0; + else if (name[i] < 0) { + /* + * We know our needles contain only ASCII, so we clamp + * here to make the results of tolower() sane. + */ + return 0; + } else if (tolower(name[i]) != dotgit_ntfs_shortname_prefix[i]) + return 0; + + goto only_spaces_and_periods; +} + +/* + * Inline helper to make sure compiler resolves strlen() on literals at + * compile time. + */ +static inline int is_ntfs_dot_str(const char *name, const char *dotgit_name, + const char *dotgit_ntfs_shortname_prefix) +{ + return is_ntfs_dot_generic(name, dotgit_name, strlen(dotgit_name), + dotgit_ntfs_shortname_prefix); +} + +int is_ntfs_dotgitmodules(const char *name) +{ + return is_ntfs_dot_str(name, "gitmodules", "gi7eba"); +} + +int is_ntfs_dotgitignore(const char *name) +{ + return is_ntfs_dot_str(name, "gitignore", "gi250a"); +} + +int is_ntfs_dotgitattributes(const char *name) +{ + return is_ntfs_dot_str(name, "gitattributes", "gi7d29"); +} + int looks_like_command_line_option(const char *str) { return str && str[0] == '-'; diff --git a/perl/Git.pm b/perl/Git.pm index 16ebcc612c..d856930b2e 100644 --- a/perl/Git.pm +++ b/perl/Git.pm @@ -554,7 +554,7 @@ sub get_record { my ($fh, $rs) = @_; local $/ = $rs; my $rec = <$fh>; - chomp $rec if defined $rs; + chomp $rec if defined $rec; $rec; } diff --git a/perl/Git/I18N.pm b/perl/Git/I18N.pm index dba96fff0a..bfb4fb67a1 100644 --- a/perl/Git/I18N.pm +++ b/perl/Git/I18N.pm @@ -18,7 +18,7 @@ our @EXPORT_OK = @EXPORT; sub __bootstrap_locale_messages { our $TEXTDOMAIN = 'git'; - our $TEXTDOMAINDIR = $ENV{GIT_TEXTDOMAINDIR} || '@@LOCALEDIR@@'; + our $TEXTDOMAINDIR ||= $ENV{GIT_TEXTDOMAINDIR} || '@@LOCALEDIR@@'; require POSIX; POSIX->import(qw(setlocale)); diff --git a/perl/header_templates/fixed_prefix.template.pl b/perl/header_templates/fixed_prefix.template.pl new file mode 100644 index 0000000000..857b4391a4 --- /dev/null +++ b/perl/header_templates/fixed_prefix.template.pl @@ -0,0 +1 @@ +use lib (split(/@@PATHSEP@@/, $ENV{GITPERLLIB} || '@@INSTLIBDIR@@')); diff --git a/perl/header_templates/runtime_prefix.template.pl b/perl/header_templates/runtime_prefix.template.pl new file mode 100644 index 0000000000..9d28b3d863 --- /dev/null +++ b/perl/header_templates/runtime_prefix.template.pl @@ -0,0 +1,42 @@ +# BEGIN RUNTIME_PREFIX generated code. +# +# This finds our Git::* libraries relative to the script's runtime path. +sub __git_system_path { + my ($relpath) = @_; + my $gitexecdir_relative = '@@GITEXECDIR_REL@@'; + + # GIT_EXEC_PATH is supplied by `git` or the test suite. + my $exec_path; + if (exists $ENV{GIT_EXEC_PATH}) { + $exec_path = $ENV{GIT_EXEC_PATH}; + } else { + # This can happen if this script is being directly invoked instead of run + # by "git". + require FindBin; + $exec_path = $FindBin::Bin; + } + + # Trim off the relative gitexecdir path to get the system path. + (my $prefix = $exec_path) =~ s/\Q$gitexecdir_relative\E$//; + + require File::Spec; + return File::Spec->catdir($prefix, $relpath); +} + +BEGIN { + use lib split /@@PATHSEP@@/, + ( + $ENV{GITPERLLIB} || + do { + my $perllibdir = __git_system_path('@@PERLLIBDIR_REL@@'); + (-e $perllibdir) || die("Invalid system path ($relpath): $path"); + $perllibdir; + } + ); + + # Export the system locale directory to the I18N module. The locale directory + # is only installed if NO_GETTEXT is set. + $Git::I18N::TEXTDOMAINDIR = __git_system_path('@@LOCALEDIR_REL@@'); +} + +# END RUNTIME_PREFIX generated code. diff --git a/pkt-line.c b/pkt-line.c index cd3dab4025..a593c08aad 100644 --- a/pkt-line.c +++ b/pkt-line.c @@ -91,6 +91,12 @@ void packet_flush(int fd) write_or_die(fd, "0000", 4); } +void packet_delim(int fd) +{ + packet_trace("0001", 4, 1); + write_or_die(fd, "0001", 4); +} + int packet_flush_gently(int fd) { packet_trace("0000", 4, 1); @@ -105,6 +111,12 @@ void packet_buf_flush(struct strbuf *buf) strbuf_add(buf, "0000", 4); } +void packet_buf_delim(struct strbuf *buf) +{ + packet_trace("0001", 4, 1); + strbuf_add(buf, "0001", 4); +} + static void set_packet_header(char *buf, const int size) { static char hexchar[] = "0123456789abcdef"; @@ -203,6 +215,22 @@ void packet_buf_write(struct strbuf *buf, const char *fmt, ...) va_end(args); } +void packet_buf_write_len(struct strbuf *buf, const char *data, size_t len) +{ + size_t orig_len, n; + + orig_len = buf->len; + strbuf_addstr(buf, "0000"); + strbuf_add(buf, data, len); + n = buf->len - orig_len; + + if (n > LARGE_PACKET_MAX) + die("protocol error: impossibly long line"); + + set_packet_header(&buf->buf[orig_len], n); + packet_trace(data, len, 1); +} + int write_packetized_from_fd(int fd_in, int fd_out) { static char buf[LARGE_PACKET_DATA_MAX]; @@ -280,28 +308,43 @@ static int packet_length(const char *linelen) return (val < 0) ? val : (val << 8) | hex2chr(linelen + 2); } -int packet_read(int fd, char **src_buf, size_t *src_len, - char *buffer, unsigned size, int options) +enum packet_read_status packet_read_with_status(int fd, char **src_buffer, + size_t *src_len, char *buffer, + unsigned size, int *pktlen, + int options) { - int len, ret; + int len; char linelen[4]; - ret = get_packet_data(fd, src_buf, src_len, linelen, 4, options); - if (ret < 0) - return ret; + if (get_packet_data(fd, src_buffer, src_len, linelen, 4, options) < 0) { + *pktlen = -1; + return PACKET_READ_EOF; + } + len = packet_length(linelen); - if (len < 0) + + if (len < 0) { die("protocol error: bad line length character: %.4s", linelen); - if (!len) { + } else if (!len) { packet_trace("0000", 4, 0); - return 0; + *pktlen = 0; + return PACKET_READ_FLUSH; + } else if (len == 1) { + packet_trace("0001", 4, 0); + *pktlen = 0; + return PACKET_READ_DELIM; + } else if (len < 4) { + die("protocol error: bad line length %d", len); } + len -= 4; - if (len >= size) + if ((unsigned)len >= size) die("protocol error: bad line length %d", len); - ret = get_packet_data(fd, src_buf, src_len, buffer, len, options); - if (ret < 0) - return ret; + + if (get_packet_data(fd, src_buffer, src_len, buffer, len, options) < 0) { + *pktlen = -1; + return PACKET_READ_EOF; + } if ((options & PACKET_READ_CHOMP_NEWLINE) && len && buffer[len-1] == '\n') @@ -309,7 +352,19 @@ int packet_read(int fd, char **src_buf, size_t *src_len, buffer[len] = 0; packet_trace(buffer, len, 0); - return len; + *pktlen = len; + return PACKET_READ_NORMAL; +} + +int packet_read(int fd, char **src_buffer, size_t *src_len, + char *buffer, unsigned size, int options) +{ + int pktlen = -1; + + packet_read_with_status(fd, src_buffer, src_len, buffer, size, + &pktlen, options); + + return pktlen; } static char *packet_read_line_generic(int fd, @@ -377,3 +432,53 @@ ssize_t read_packetized_to_strbuf(int fd_in, struct strbuf *sb_out) } return sb_out->len - orig_len; } + +/* Packet Reader Functions */ +void packet_reader_init(struct packet_reader *reader, int fd, + char *src_buffer, size_t src_len, + int options) +{ + memset(reader, 0, sizeof(*reader)); + + reader->fd = fd; + reader->src_buffer = src_buffer; + reader->src_len = src_len; + reader->buffer = packet_buffer; + reader->buffer_size = sizeof(packet_buffer); + reader->options = options; +} + +enum packet_read_status packet_reader_read(struct packet_reader *reader) +{ + if (reader->line_peeked) { + reader->line_peeked = 0; + return reader->status; + } + + reader->status = packet_read_with_status(reader->fd, + &reader->src_buffer, + &reader->src_len, + reader->buffer, + reader->buffer_size, + &reader->pktlen, + reader->options); + + if (reader->status == PACKET_READ_NORMAL) + reader->line = reader->buffer; + else + reader->line = NULL; + + return reader->status; +} + +enum packet_read_status packet_reader_peek(struct packet_reader *reader) +{ + /* Only allow peeking a single line */ + if (reader->line_peeked) + return reader->status; + + /* Peek a line by reading it and setting peeked flag */ + packet_reader_read(reader); + reader->line_peeked = 1; + return reader->status; +} diff --git a/pkt-line.h b/pkt-line.h index 3dad583e2d..5b28d43472 100644 --- a/pkt-line.h +++ b/pkt-line.h @@ -20,10 +20,13 @@ * side can't, we stay with pure read/write interfaces. */ void packet_flush(int fd); +void packet_delim(int fd); void packet_write_fmt(int fd, const char *fmt, ...) __attribute__((format (printf, 2, 3))); void packet_buf_flush(struct strbuf *buf); +void packet_buf_delim(struct strbuf *buf); void packet_write(int fd_out, const char *buf, size_t size); void packet_buf_write(struct strbuf *buf, const char *fmt, ...) __attribute__((format (printf, 2, 3))); +void packet_buf_write_len(struct strbuf *buf, const char *data, size_t len); int packet_flush_gently(int fd); int packet_write_fmt_gently(int fd, const char *fmt, ...) __attribute__((format (printf, 2, 3))); int write_packetized_from_fd(int fd_in, int fd_out); @@ -66,6 +69,23 @@ int packet_read(int fd, char **src_buffer, size_t *src_len, char *buffer, unsigned size, int options); /* + * Read a packetized line into a buffer like the 'packet_read()' function but + * returns an 'enum packet_read_status' which indicates the status of the read. + * The number of bytes read will be assigined to *pktlen if the status of the + * read was 'PACKET_READ_NORMAL'. + */ +enum packet_read_status { + PACKET_READ_EOF, + PACKET_READ_NORMAL, + PACKET_READ_FLUSH, + PACKET_READ_DELIM, +}; +enum packet_read_status packet_read_with_status(int fd, char **src_buffer, + size_t *src_len, char *buffer, + unsigned size, int *pktlen, + int options); + +/* * Convenience wrapper for packet_read that is not gentle, and sets the * CHOMP_NEWLINE option. The return value is NULL for a flush packet, * and otherwise points to a static buffer (that may be overwritten by @@ -96,6 +116,64 @@ char *packet_read_line_buf(char **src_buf, size_t *src_len, int *size); */ ssize_t read_packetized_to_strbuf(int fd_in, struct strbuf *sb_out); +struct packet_reader { + /* source file descriptor */ + int fd; + + /* source buffer and its size */ + char *src_buffer; + size_t src_len; + + /* buffer that pkt-lines are read into and its size */ + char *buffer; + unsigned buffer_size; + + /* options to be used during reads */ + int options; + + /* status of the last read */ + enum packet_read_status status; + + /* length of data read during the last read */ + int pktlen; + + /* the last line read */ + const char *line; + + /* indicates if a line has been peeked */ + int line_peeked; +}; + +/* + * Initialize a 'struct packet_reader' object which is an + * abstraction around the 'packet_read_with_status()' function. + */ +extern void packet_reader_init(struct packet_reader *reader, int fd, + char *src_buffer, size_t src_len, + int options); + +/* + * Perform a packet read and return the status of the read. + * The values of 'pktlen' and 'line' are updated based on the status of the + * read as follows: + * + * PACKET_READ_ERROR: 'pktlen' is set to '-1' and 'line' is set to NULL + * PACKET_READ_NORMAL: 'pktlen' is set to the number of bytes read + * 'line' is set to point at the read line + * PACKET_READ_FLUSH: 'pktlen' is set to '0' and 'line' is set to NULL + */ +extern enum packet_read_status packet_reader_read(struct packet_reader *reader); + +/* + * Peek the next packet line without consuming it and return the status. + * The next call to 'packet_reader_read()' will perform a read of the same line + * that was peeked, consuming the line. + * + * Peeking multiple times without calling 'packet_reader_read()' will return + * the same result. + */ +extern enum packet_read_status packet_reader_peek(struct packet_reader *reader); + #define DEFAULT_PACKET_MAX 1000 #define LARGE_PACKET_MAX 65520 #define LARGE_PACKET_DATA_MAX (LARGE_PACKET_MAX - 4) @@ -1161,10 +1161,11 @@ static size_t format_commit_one(struct strbuf *sb, /* in UTF-8 */ strbuf_addstr(sb, diff_get_color(c->auto_color, DIFF_RESET)); return 1; case 'T': /* tree hash */ - strbuf_addstr(sb, oid_to_hex(&commit->tree->object.oid)); + strbuf_addstr(sb, oid_to_hex(get_commit_tree_oid(commit))); return 1; case 't': /* abbreviated tree hash */ - strbuf_add_unique_abbrev(sb, &commit->tree->object.oid, + strbuf_add_unique_abbrev(sb, + get_commit_tree_oid(commit), c->pretty_ctx->abbrev); return 1; case 'P': /* parent hashes */ diff --git a/protocol.c b/protocol.c index 43012b7eb6..5e636785d1 100644 --- a/protocol.c +++ b/protocol.c @@ -8,6 +8,8 @@ static enum protocol_version parse_protocol_version(const char *value) return protocol_v0; else if (!strcmp(value, "1")) return protocol_v1; + else if (!strcmp(value, "2")) + return protocol_v2; else return protocol_unknown_version; } diff --git a/protocol.h b/protocol.h index 1b2bc94a8d..2ad35e433c 100644 --- a/protocol.h +++ b/protocol.h @@ -5,6 +5,7 @@ enum protocol_version { protocol_unknown_version = -1, protocol_v0 = 0, protocol_v1 = 1, + protocol_v2 = 2, }; /* diff --git a/reachable.c b/reachable.c index a6ea33a5db..ffb976c33c 100644 --- a/reachable.c +++ b/reachable.c @@ -78,7 +78,7 @@ static void add_recent_object(const struct object_id *oid, * later processing, and the revision machinery expects * commits and tags to have been parsed. */ - type = oid_object_info(oid, NULL); + type = oid_object_info(the_repository, oid, NULL); if (type < 0) die("unable to get object info for %s", oid_to_hex(oid)); diff --git a/read-cache.c b/read-cache.c index 10f1c6bb8a..cebd24849d 100644 --- a/read-cache.c +++ b/read-cache.c @@ -752,7 +752,7 @@ struct cache_entry *make_cache_entry(unsigned int mode, int size, len; struct cache_entry *ce, *ret; - if (!verify_path(path)) { + if (!verify_path(path, mode)) { error("Invalid path '%s'", path); return NULL; } @@ -817,7 +817,7 @@ int ce_same_name(const struct cache_entry *a, const struct cache_entry *b) * Also, we don't want double slashes or slashes at the * end that can make pathnames ambiguous. */ -static int verify_dotfile(const char *rest) +static int verify_dotfile(const char *rest, unsigned mode) { /* * The first character was '.', but that @@ -831,8 +831,13 @@ static int verify_dotfile(const char *rest) switch (*rest) { /* - * ".git" followed by NUL or slash is bad. This - * shares the path end test with the ".." case. + * ".git" followed by NUL or slash is bad. Note that we match + * case-insensitively here, even if ignore_case is not set. + * This outlaws ".GIT" everywhere out of an abundance of caution, + * since there's really no good reason to allow it. + * + * Once we've seen ".git", we can also find ".gitmodules", etc (also + * case-insensitively). */ case 'g': case 'G': @@ -840,8 +845,15 @@ static int verify_dotfile(const char *rest) break; if (rest[2] != 't' && rest[2] != 'T') break; - rest += 2; - /* fallthrough */ + if (rest[3] == '\0' || is_dir_sep(rest[3])) + return 0; + if (S_ISLNK(mode)) { + rest += 3; + if (skip_iprefix(rest, "modules", &rest) && + (*rest == '\0' || is_dir_sep(*rest))) + return 0; + } + break; case '.': if (rest[1] == '\0' || is_dir_sep(rest[1])) return 0; @@ -849,7 +861,7 @@ static int verify_dotfile(const char *rest) return 1; } -int verify_path(const char *path) +int verify_path(const char *path, unsigned mode) { char c; @@ -862,12 +874,25 @@ int verify_path(const char *path) return 1; if (is_dir_sep(c)) { inside: - if (protect_hfs && is_hfs_dotgit(path)) - return 0; - if (protect_ntfs && is_ntfs_dotgit(path)) - return 0; + if (protect_hfs) { + if (is_hfs_dotgit(path)) + return 0; + if (S_ISLNK(mode)) { + if (is_hfs_dotgitmodules(path)) + return 0; + } + } + if (protect_ntfs) { + if (is_ntfs_dotgit(path)) + return 0; + if (S_ISLNK(mode)) { + if (is_ntfs_dotgitmodules(path)) + return 0; + } + } + c = *path++; - if ((c == '.' && !verify_dotfile(path)) || + if ((c == '.' && !verify_dotfile(path, mode)) || is_dir_sep(c) || c == '\0') return 0; } @@ -1184,7 +1209,7 @@ static int add_index_entry_with_check(struct index_state *istate, struct cache_e if (!ok_to_add) return -1; - if (!verify_path(ce->name)) + if (!verify_path(ce->name, ce->ce_mode)) return error("Invalid path '%s'", ce->name); if (!skip_df_check && @@ -2268,7 +2293,7 @@ static int do_write_index(struct index_state *istate, struct tempfile *tempfile, if (!istate->version) { istate->version = get_index_format_default(); - if (getenv("GIT_TEST_SPLIT_INDEX")) + if (git_env_bool("GIT_TEST_SPLIT_INDEX", 0)) init_split_index(istate); } @@ -2559,7 +2584,7 @@ int write_locked_index(struct index_state *istate, struct lock_file *lock, goto out; } - if (getenv("GIT_TEST_SPLIT_INDEX")) { + if (git_env_bool("GIT_TEST_SPLIT_INDEX", 0)) { int v = si->base_sha1[0]; if ((v & 15) < 6) istate->cache_changed |= SPLIT_INDEX_ORDERED; diff --git a/ref-filter.c b/ref-filter.c index 0291feaf0d..01c1a82075 100644 --- a/ref-filter.c +++ b/ref-filter.c @@ -101,22 +101,38 @@ static struct used_atom { } *used_atom; static int used_atom_cnt, need_tagged, need_symref; -static void color_atom_parser(const struct ref_format *format, struct used_atom *atom, const char *color_value) +/* + * Expand string, append it to strbuf *sb, then return error code ret. + * Allow to save few lines of code. + */ +static int strbuf_addf_ret(struct strbuf *sb, int ret, const char *fmt, ...) +{ + va_list ap; + va_start(ap, fmt); + strbuf_vaddf(sb, fmt, ap); + va_end(ap); + return ret; +} + +static int color_atom_parser(const struct ref_format *format, struct used_atom *atom, + const char *color_value, struct strbuf *err) { if (!color_value) - die(_("expected format: %%(color:<color>)")); + return strbuf_addf_ret(err, -1, _("expected format: %%(color:<color>)")); if (color_parse(color_value, atom->u.color) < 0) - die(_("unrecognized color: %%(color:%s)"), color_value); + return strbuf_addf_ret(err, -1, _("unrecognized color: %%(color:%s)"), + color_value); /* * We check this after we've parsed the color, which lets us complain * about syntactically bogus color names even if they won't be used. */ if (!want_color(format->use_color)) color_parse("", atom->u.color); + return 0; } -static void refname_atom_parser_internal(struct refname_atom *atom, - const char *arg, const char *name) +static int refname_atom_parser_internal(struct refname_atom *atom, const char *arg, + const char *name, struct strbuf *err) { if (!arg) atom->option = R_NORMAL; @@ -126,16 +142,18 @@ static void refname_atom_parser_internal(struct refname_atom *atom, skip_prefix(arg, "strip=", &arg)) { atom->option = R_LSTRIP; if (strtol_i(arg, 10, &atom->lstrip)) - die(_("Integer value expected refname:lstrip=%s"), arg); + return strbuf_addf_ret(err, -1, _("Integer value expected refname:lstrip=%s"), arg); } else if (skip_prefix(arg, "rstrip=", &arg)) { atom->option = R_RSTRIP; if (strtol_i(arg, 10, &atom->rstrip)) - die(_("Integer value expected refname:rstrip=%s"), arg); + return strbuf_addf_ret(err, -1, _("Integer value expected refname:rstrip=%s"), arg); } else - die(_("unrecognized %%(%s) argument: %s"), name, arg); + return strbuf_addf_ret(err, -1, _("unrecognized %%(%s) argument: %s"), name, arg); + return 0; } -static void remote_ref_atom_parser(const struct ref_format *format, struct used_atom *atom, const char *arg) +static int remote_ref_atom_parser(const struct ref_format *format, struct used_atom *atom, + const char *arg, struct strbuf *err) { struct string_list params = STRING_LIST_INIT_DUP; int i; @@ -145,9 +163,8 @@ static void remote_ref_atom_parser(const struct ref_format *format, struct used_ if (!arg) { atom->u.remote_ref.option = RR_REF; - refname_atom_parser_internal(&atom->u.remote_ref.refname, - arg, atom->name); - return; + return refname_atom_parser_internal(&atom->u.remote_ref.refname, + arg, atom->name, err); } atom->u.remote_ref.nobracket = 0; @@ -170,29 +187,38 @@ static void remote_ref_atom_parser(const struct ref_format *format, struct used_ atom->u.remote_ref.push_remote = 1; } else { atom->u.remote_ref.option = RR_REF; - refname_atom_parser_internal(&atom->u.remote_ref.refname, - arg, atom->name); + if (refname_atom_parser_internal(&atom->u.remote_ref.refname, + arg, atom->name, err)) { + string_list_clear(¶ms, 0); + return -1; + } } } string_list_clear(¶ms, 0); + return 0; } -static void body_atom_parser(const struct ref_format *format, struct used_atom *atom, const char *arg) +static int body_atom_parser(const struct ref_format *format, struct used_atom *atom, + const char *arg, struct strbuf *err) { if (arg) - die(_("%%(body) does not take arguments")); + return strbuf_addf_ret(err, -1, _("%%(body) does not take arguments")); atom->u.contents.option = C_BODY_DEP; + return 0; } -static void subject_atom_parser(const struct ref_format *format, struct used_atom *atom, const char *arg) +static int subject_atom_parser(const struct ref_format *format, struct used_atom *atom, + const char *arg, struct strbuf *err) { if (arg) - die(_("%%(subject) does not take arguments")); + return strbuf_addf_ret(err, -1, _("%%(subject) does not take arguments")); atom->u.contents.option = C_SUB; + return 0; } -static void trailers_atom_parser(const struct ref_format *format, struct used_atom *atom, const char *arg) +static int trailers_atom_parser(const struct ref_format *format, struct used_atom *atom, + const char *arg, struct strbuf *err) { struct string_list params = STRING_LIST_INIT_DUP; int i; @@ -205,15 +231,20 @@ static void trailers_atom_parser(const struct ref_format *format, struct used_at atom->u.contents.trailer_opts.unfold = 1; else if (!strcmp(s, "only")) atom->u.contents.trailer_opts.only_trailers = 1; - else - die(_("unknown %%(trailers) argument: %s"), s); + else { + strbuf_addf(err, _("unknown %%(trailers) argument: %s"), s); + string_list_clear(¶ms, 0); + return -1; + } } } atom->u.contents.option = C_TRAILERS; string_list_clear(¶ms, 0); + return 0; } -static void contents_atom_parser(const struct ref_format *format, struct used_atom *atom, const char *arg) +static int contents_atom_parser(const struct ref_format *format, struct used_atom *atom, + const char *arg, struct strbuf *err) { if (!arg) atom->u.contents.option = C_BARE; @@ -225,16 +256,19 @@ static void contents_atom_parser(const struct ref_format *format, struct used_at atom->u.contents.option = C_SUB; else if (skip_prefix(arg, "trailers", &arg)) { skip_prefix(arg, ":", &arg); - trailers_atom_parser(format, atom, *arg ? arg : NULL); + if (trailers_atom_parser(format, atom, *arg ? arg : NULL, err)) + return -1; } else if (skip_prefix(arg, "lines=", &arg)) { atom->u.contents.option = C_LINES; if (strtoul_ui(arg, 10, &atom->u.contents.nlines)) - die(_("positive value expected contents:lines=%s"), arg); + return strbuf_addf_ret(err, -1, _("positive value expected contents:lines=%s"), arg); } else - die(_("unrecognized %%(contents) argument: %s"), arg); + return strbuf_addf_ret(err, -1, _("unrecognized %%(contents) argument: %s"), arg); + return 0; } -static void objectname_atom_parser(const struct ref_format *format, struct used_atom *atom, const char *arg) +static int objectname_atom_parser(const struct ref_format *format, struct used_atom *atom, + const char *arg, struct strbuf *err) { if (!arg) atom->u.objectname.option = O_FULL; @@ -244,16 +278,18 @@ static void objectname_atom_parser(const struct ref_format *format, struct used_ atom->u.objectname.option = O_LENGTH; if (strtoul_ui(arg, 10, &atom->u.objectname.length) || atom->u.objectname.length == 0) - die(_("positive value expected objectname:short=%s"), arg); + return strbuf_addf_ret(err, -1, _("positive value expected objectname:short=%s"), arg); if (atom->u.objectname.length < MINIMUM_ABBREV) atom->u.objectname.length = MINIMUM_ABBREV; } else - die(_("unrecognized %%(objectname) argument: %s"), arg); + return strbuf_addf_ret(err, -1, _("unrecognized %%(objectname) argument: %s"), arg); + return 0; } -static void refname_atom_parser(const struct ref_format *format, struct used_atom *atom, const char *arg) +static int refname_atom_parser(const struct ref_format *format, struct used_atom *atom, + const char *arg, struct strbuf *err) { - refname_atom_parser_internal(&atom->u.refname, arg, atom->name); + return refname_atom_parser_internal(&atom->u.refname, arg, atom->name, err); } static align_type parse_align_position(const char *s) @@ -267,7 +303,8 @@ static align_type parse_align_position(const char *s) return -1; } -static void align_atom_parser(const struct ref_format *format, struct used_atom *atom, const char *arg) +static int align_atom_parser(const struct ref_format *format, struct used_atom *atom, + const char *arg, struct strbuf *err) { struct align *align = &atom->u.align; struct string_list params = STRING_LIST_INIT_DUP; @@ -275,7 +312,7 @@ static void align_atom_parser(const struct ref_format *format, struct used_atom unsigned int width = ~0U; if (!arg) - die(_("expected format: %%(align:<width>,<position>)")); + return strbuf_addf_ret(err, -1, _("expected format: %%(align:<width>,<position>)")); align->position = ALIGN_LEFT; @@ -286,49 +323,65 @@ static void align_atom_parser(const struct ref_format *format, struct used_atom if (skip_prefix(s, "position=", &s)) { position = parse_align_position(s); - if (position < 0) - die(_("unrecognized position:%s"), s); + if (position < 0) { + strbuf_addf(err, _("unrecognized position:%s"), s); + string_list_clear(¶ms, 0); + return -1; + } align->position = position; } else if (skip_prefix(s, "width=", &s)) { - if (strtoul_ui(s, 10, &width)) - die(_("unrecognized width:%s"), s); + if (strtoul_ui(s, 10, &width)) { + strbuf_addf(err, _("unrecognized width:%s"), s); + string_list_clear(¶ms, 0); + return -1; + } } else if (!strtoul_ui(s, 10, &width)) ; else if ((position = parse_align_position(s)) >= 0) align->position = position; - else - die(_("unrecognized %%(align) argument: %s"), s); + else { + strbuf_addf(err, _("unrecognized %%(align) argument: %s"), s); + string_list_clear(¶ms, 0); + return -1; + } } - if (width == ~0U) - die(_("positive width expected with the %%(align) atom")); + if (width == ~0U) { + string_list_clear(¶ms, 0); + return strbuf_addf_ret(err, -1, _("positive width expected with the %%(align) atom")); + } align->width = width; string_list_clear(¶ms, 0); + return 0; } -static void if_atom_parser(const struct ref_format *format, struct used_atom *atom, const char *arg) +static int if_atom_parser(const struct ref_format *format, struct used_atom *atom, + const char *arg, struct strbuf *err) { if (!arg) { atom->u.if_then_else.cmp_status = COMPARE_NONE; - return; + return 0; } else if (skip_prefix(arg, "equals=", &atom->u.if_then_else.str)) { atom->u.if_then_else.cmp_status = COMPARE_EQUAL; } else if (skip_prefix(arg, "notequals=", &atom->u.if_then_else.str)) { atom->u.if_then_else.cmp_status = COMPARE_UNEQUAL; - } else { - die(_("unrecognized %%(if) argument: %s"), arg); - } + } else + return strbuf_addf_ret(err, -1, _("unrecognized %%(if) argument: %s"), arg); + return 0; } -static void head_atom_parser(const struct ref_format *format, struct used_atom *atom, const char *arg) +static int head_atom_parser(const struct ref_format *format, struct used_atom *atom, + const char *arg, struct strbuf *unused_err) { atom->u.head = resolve_refdup("HEAD", RESOLVE_REF_READING, NULL, NULL); + return 0; } static struct { const char *name; cmp_type cmp_type; - void (*parser)(const struct ref_format *format, struct used_atom *atom, const char *arg); + int (*parser)(const struct ref_format *format, struct used_atom *atom, + const char *arg, struct strbuf *err); } valid_atom[] = { { "refname" , FIELD_STR, refname_atom_parser }, { "objecttype" }, @@ -387,7 +440,8 @@ struct ref_formatting_state { struct atom_value { const char *s; - void (*handler)(struct atom_value *atomv, struct ref_formatting_state *state); + int (*handler)(struct atom_value *atomv, struct ref_formatting_state *state, + struct strbuf *err); uintmax_t value; /* used for sorting when not FIELD_STR */ struct used_atom *atom; }; @@ -396,7 +450,8 @@ struct atom_value { * Used to parse format string and sort specifiers */ static int parse_ref_filter_atom(const struct ref_format *format, - const char *atom, const char *ep) + const char *atom, const char *ep, + struct strbuf *err) { const char *sp; const char *arg; @@ -406,7 +461,8 @@ static int parse_ref_filter_atom(const struct ref_format *format, if (*sp == '*' && sp < ep) sp++; /* deref */ if (ep <= sp) - die(_("malformed field name: %.*s"), (int)(ep-atom), atom); + return strbuf_addf_ret(err, -1, _("malformed field name: %.*s"), + (int)(ep-atom), atom); /* Do we have the atom already used elsewhere? */ for (i = 0; i < used_atom_cnt; i++) { @@ -432,7 +488,8 @@ static int parse_ref_filter_atom(const struct ref_format *format, } if (ARRAY_SIZE(valid_atom) <= i) - die(_("unknown field name: %.*s"), (int)(ep-atom), atom); + return strbuf_addf_ret(err, -1, _("unknown field name: %.*s"), + (int)(ep-atom), atom); /* Add it in, including the deref prefix */ at = used_atom_cnt; @@ -451,8 +508,8 @@ static int parse_ref_filter_atom(const struct ref_format *format, } } memset(&used_atom[at].u, 0, sizeof(used_atom[at].u)); - if (valid_atom[i].parser) - valid_atom[i].parser(format, &used_atom[at], arg); + if (valid_atom[i].parser && valid_atom[i].parser(format, &used_atom[at], arg, err)) + return -1; if (*atom == '*') need_tagged = 1; if (!strcmp(valid_atom[i].name, "symref")) @@ -481,7 +538,8 @@ static void quote_formatting(struct strbuf *s, const char *str, int quote_style) } } -static void append_atom(struct atom_value *v, struct ref_formatting_state *state) +static int append_atom(struct atom_value *v, struct ref_formatting_state *state, + struct strbuf *unused_err) { /* * Quote formatting is only done when the stack has a single @@ -493,6 +551,7 @@ static void append_atom(struct atom_value *v, struct ref_formatting_state *state quote_formatting(&state->stack->output, v->s, state->quote_style); else strbuf_addstr(&state->stack->output, v->s); + return 0; } static void push_stack_element(struct ref_formatting_stack **stack) @@ -527,7 +586,8 @@ static void end_align_handler(struct ref_formatting_stack **stack) strbuf_release(&s); } -static void align_atom_handler(struct atom_value *atomv, struct ref_formatting_state *state) +static int align_atom_handler(struct atom_value *atomv, struct ref_formatting_state *state, + struct strbuf *unused_err) { struct ref_formatting_stack *new_stack; @@ -535,6 +595,7 @@ static void align_atom_handler(struct atom_value *atomv, struct ref_formatting_s new_stack = state->stack; new_stack->at_end = end_align_handler; new_stack->at_end_data = &atomv->atom->u.align; + return 0; } static void if_then_else_handler(struct ref_formatting_stack **stack) @@ -572,7 +633,8 @@ static void if_then_else_handler(struct ref_formatting_stack **stack) free(if_then_else); } -static void if_atom_handler(struct atom_value *atomv, struct ref_formatting_state *state) +static int if_atom_handler(struct atom_value *atomv, struct ref_formatting_state *state, + struct strbuf *unused_err) { struct ref_formatting_stack *new_stack; struct if_then_else *if_then_else = xcalloc(sizeof(struct if_then_else), 1); @@ -584,6 +646,7 @@ static void if_atom_handler(struct atom_value *atomv, struct ref_formatting_stat new_stack = state->stack; new_stack->at_end = if_then_else_handler; new_stack->at_end_data = if_then_else; + return 0; } static int is_empty(const char *s) @@ -596,7 +659,8 @@ static int is_empty(const char *s) return 1; } -static void then_atom_handler(struct atom_value *atomv, struct ref_formatting_state *state) +static int then_atom_handler(struct atom_value *atomv, struct ref_formatting_state *state, + struct strbuf *err) { struct ref_formatting_stack *cur = state->stack; struct if_then_else *if_then_else = NULL; @@ -604,11 +668,11 @@ static void then_atom_handler(struct atom_value *atomv, struct ref_formatting_st if (cur->at_end == if_then_else_handler) if_then_else = (struct if_then_else *)cur->at_end_data; if (!if_then_else) - die(_("format: %%(then) atom used without an %%(if) atom")); + return strbuf_addf_ret(err, -1, _("format: %%(then) atom used without an %%(if) atom")); if (if_then_else->then_atom_seen) - die(_("format: %%(then) atom used more than once")); + return strbuf_addf_ret(err, -1, _("format: %%(then) atom used more than once")); if (if_then_else->else_atom_seen) - die(_("format: %%(then) atom used after %%(else)")); + return strbuf_addf_ret(err, -1, _("format: %%(then) atom used after %%(else)")); if_then_else->then_atom_seen = 1; /* * If the 'equals' or 'notequals' attribute is used then @@ -624,9 +688,11 @@ static void then_atom_handler(struct atom_value *atomv, struct ref_formatting_st } else if (cur->output.len && !is_empty(cur->output.buf)) if_then_else->condition_satisfied = 1; strbuf_reset(&cur->output); + return 0; } -static void else_atom_handler(struct atom_value *atomv, struct ref_formatting_state *state) +static int else_atom_handler(struct atom_value *atomv, struct ref_formatting_state *state, + struct strbuf *err) { struct ref_formatting_stack *prev = state->stack; struct if_then_else *if_then_else = NULL; @@ -634,24 +700,26 @@ static void else_atom_handler(struct atom_value *atomv, struct ref_formatting_st if (prev->at_end == if_then_else_handler) if_then_else = (struct if_then_else *)prev->at_end_data; if (!if_then_else) - die(_("format: %%(else) atom used without an %%(if) atom")); + return strbuf_addf_ret(err, -1, _("format: %%(else) atom used without an %%(if) atom")); if (!if_then_else->then_atom_seen) - die(_("format: %%(else) atom used without a %%(then) atom")); + return strbuf_addf_ret(err, -1, _("format: %%(else) atom used without a %%(then) atom")); if (if_then_else->else_atom_seen) - die(_("format: %%(else) atom used more than once")); + return strbuf_addf_ret(err, -1, _("format: %%(else) atom used more than once")); if_then_else->else_atom_seen = 1; push_stack_element(&state->stack); state->stack->at_end_data = prev->at_end_data; state->stack->at_end = prev->at_end; + return 0; } -static void end_atom_handler(struct atom_value *atomv, struct ref_formatting_state *state) +static int end_atom_handler(struct atom_value *atomv, struct ref_formatting_state *state, + struct strbuf *err) { struct ref_formatting_stack *current = state->stack; struct strbuf s = STRBUF_INIT; if (!current->at_end) - die(_("format: %%(end) atom used without corresponding atom")); + return strbuf_addf_ret(err, -1, _("format: %%(end) atom used without corresponding atom")); current->at_end(&state->stack); /* Stack may have been popped within at_end(), hence reset the current pointer */ @@ -668,6 +736,7 @@ static void end_atom_handler(struct atom_value *atomv, struct ref_formatting_sta } strbuf_release(&s); pop_stack_element(&state->stack); + return 0; } /* @@ -702,17 +771,21 @@ int verify_ref_format(struct ref_format *format) format->need_color_reset_at_eol = 0; for (cp = format->format; *cp && (sp = find_next(cp)); ) { + struct strbuf err = STRBUF_INIT; const char *color, *ep = strchr(sp, ')'); int at; if (!ep) return error(_("malformed format string %s"), sp); /* sp points at "%(" and ep points at the closing ")" */ - at = parse_ref_filter_atom(format, sp + 2, ep); + at = parse_ref_filter_atom(format, sp + 2, ep, &err); + if (at < 0) + die("%s", err.buf); cp = ep + 1; if (skip_prefix(used_atom[at].name, "color:", &color)) format->need_color_reset_at_eol = !!strcmp(color, "reset"); + strbuf_release(&err); } if (format->need_color_reset_at_eol && !want_color(format->use_color)) format->need_color_reset_at_eol = 0; @@ -815,7 +888,7 @@ static void grab_commit_values(struct atom_value *val, int deref, struct object if (deref) name++; if (!strcmp(name, "tree")) { - v->s = xstrdup(oid_to_hex(&commit->tree->object.oid)); + v->s = xstrdup(oid_to_hex(get_commit_tree_oid(commit))); } else if (!strcmp(name, "numparent")) { v->value = commit_list_count(commit->parents); @@ -1358,28 +1431,30 @@ static const char *get_refname(struct used_atom *atom, struct ref_array_item *re return show_ref(&atom->u.refname, ref->refname); } -static void get_object(struct ref_array_item *ref, const struct object_id *oid, - int deref, struct object **obj) +static int get_object(struct ref_array_item *ref, const struct object_id *oid, + int deref, struct object **obj, struct strbuf *err) { int eaten; + int ret = 0; unsigned long size; void *buf = get_obj(oid, obj, &size, &eaten); if (!buf) - die(_("missing object %s for %s"), - oid_to_hex(oid), ref->refname); - if (!*obj) - die(_("parse_object_buffer failed on %s for %s"), - oid_to_hex(oid), ref->refname); - - grab_values(ref->value, deref, *obj, buf, size); + ret = strbuf_addf_ret(err, -1, _("missing object %s for %s"), + oid_to_hex(oid), ref->refname); + else if (!*obj) + ret = strbuf_addf_ret(err, -1, _("parse_object_buffer failed on %s for %s"), + oid_to_hex(oid), ref->refname); + else + grab_values(ref->value, deref, *obj, buf, size); if (!eaten) free(buf); + return ret; } /* * Parse the object referred by ref, and grab needed value. */ -static void populate_value(struct ref_array_item *ref) +static int populate_value(struct ref_array_item *ref, struct strbuf *err) { struct object *obj; int i; @@ -1501,16 +1576,17 @@ static void populate_value(struct ref_array_item *ref) break; } if (used_atom_cnt <= i) - return; + return 0; - get_object(ref, &ref->objectname, 0, &obj); + if (get_object(ref, &ref->objectname, 0, &obj, err)) + return -1; /* * If there is no atom that wants to know about tagged * object, we are done. */ if (!need_tagged || (obj->type != OBJ_TAG)) - return; + return 0; /* * If it is a tag object, see if we use a value that derefs @@ -1524,20 +1600,23 @@ static void populate_value(struct ref_array_item *ref) * is not consistent with what deref_tag() does * which peels the onion to the core. */ - get_object(ref, tagged, 1, &obj); + return get_object(ref, tagged, 1, &obj, err); } /* * Given a ref, return the value for the atom. This lazily gets value * out of the object by calling populate value. */ -static void get_ref_atom_value(struct ref_array_item *ref, int atom, struct atom_value **v) +static int get_ref_atom_value(struct ref_array_item *ref, int atom, + struct atom_value **v, struct strbuf *err) { if (!ref->value) { - populate_value(ref); + if (populate_value(ref, err)) + return -1; fill_missing_values(ref->value); } *v = &ref->value[atom]; + return 0; } /* @@ -2075,9 +2154,13 @@ static int cmp_ref_sorting(struct ref_sorting *s, struct ref_array_item *a, stru int cmp; cmp_type cmp_type = used_atom[s->atom].type; int (*cmp_fn)(const char *, const char *); + struct strbuf err = STRBUF_INIT; - get_ref_atom_value(a, s->atom, &va); - get_ref_atom_value(b, s->atom, &vb); + if (get_ref_atom_value(a, s->atom, &va, &err)) + die("%s", err.buf); + if (get_ref_atom_value(b, s->atom, &vb, &err)) + die("%s", err.buf); + strbuf_release(&err); cmp_fn = s->ignore_case ? strcasecmp : strcmp; if (s->version) cmp = versioncmp(va->s, vb->s); @@ -2136,9 +2219,10 @@ static void append_literal(const char *cp, const char *ep, struct ref_formatting } } -void format_ref_array_item(struct ref_array_item *info, +int format_ref_array_item(struct ref_array_item *info, const struct ref_format *format, - struct strbuf *final_buf) + struct strbuf *final_buf, + struct strbuf *error_buf) { const char *cp, *sp, *ep; struct ref_formatting_state state = REF_FORMATTING_STATE_INIT; @@ -2148,14 +2232,17 @@ void format_ref_array_item(struct ref_array_item *info, for (cp = format->format; *cp && (sp = find_next(cp)); cp = ep + 1) { struct atom_value *atomv; + int pos; ep = strchr(sp, ')'); if (cp < sp) append_literal(cp, sp, &state); - get_ref_atom_value(info, - parse_ref_filter_atom(format, sp + 2, ep), - &atomv); - atomv->handler(atomv, &state); + pos = parse_ref_filter_atom(format, sp + 2, ep, error_buf); + if (pos < 0 || get_ref_atom_value(info, pos, &atomv, error_buf) || + atomv->handler(atomv, &state, error_buf)) { + pop_stack_element(&state.stack); + return -1; + } } if (*cp) { sp = cp + strlen(cp); @@ -2164,21 +2251,30 @@ void format_ref_array_item(struct ref_array_item *info, if (format->need_color_reset_at_eol) { struct atom_value resetv; resetv.s = GIT_COLOR_RESET; - append_atom(&resetv, &state); + if (append_atom(&resetv, &state, error_buf)) { + pop_stack_element(&state.stack); + return -1; + } + } + if (state.stack->prev) { + pop_stack_element(&state.stack); + return strbuf_addf_ret(error_buf, -1, _("format: %%(end) atom missing")); } - if (state.stack->prev) - die(_("format: %%(end) atom missing")); strbuf_addbuf(final_buf, &state.stack->output); pop_stack_element(&state.stack); + return 0; } void show_ref_array_item(struct ref_array_item *info, const struct ref_format *format) { struct strbuf final_buf = STRBUF_INIT; + struct strbuf error_buf = STRBUF_INIT; - format_ref_array_item(info, format, &final_buf); + if (format_ref_array_item(info, format, &final_buf, &error_buf)) + die("%s", error_buf.buf); fwrite(final_buf.buf, 1, final_buf.len, stdout); + strbuf_release(&error_buf); strbuf_release(&final_buf); putchar('\n'); } @@ -2201,7 +2297,12 @@ static int parse_sorting_atom(const char *atom) */ struct ref_format dummy = REF_FORMAT_INIT; const char *end = atom + strlen(atom); - return parse_ref_filter_atom(&dummy, atom, end); + struct strbuf err = STRBUF_INIT; + int res = parse_ref_filter_atom(&dummy, atom, end, &err); + if (res < 0) + die("%s", err.buf); + strbuf_release(&err); + return res; } /* If no sorting option is given, use refname to sort as default */ diff --git a/ref-filter.h b/ref-filter.h index 76cf87cb6c..85c8ebc3b9 100644 --- a/ref-filter.h +++ b/ref-filter.h @@ -110,9 +110,10 @@ int verify_ref_format(struct ref_format *format); /* Sort the given ref_array as per the ref_sorting provided */ void ref_array_sort(struct ref_sorting *sort, struct ref_array *array); /* Based on the given format and quote_style, fill the strbuf */ -void format_ref_array_item(struct ref_array_item *info, - const struct ref_format *format, - struct strbuf *final_buf); +int format_ref_array_item(struct ref_array_item *info, + const struct ref_format *format, + struct strbuf *final_buf, + struct strbuf *error_buf); /* Print the ref using the given format and quote_style */ void show_ref_array_item(struct ref_array_item *info, const struct ref_format *format); /* Parse a single sort specifier and add it to the list */ @@ -13,6 +13,8 @@ #include "tag.h" #include "submodule.h" #include "worktree.h" +#include "argv-array.h" +#include "repository.h" /* * List of all available backends @@ -206,7 +208,7 @@ char *refs_resolve_refdup(struct ref_store *refs, char *resolve_refdup(const char *refname, int resolve_flags, struct object_id *oid, int *flags) { - return refs_resolve_refdup(get_main_ref_store(), + return refs_resolve_refdup(get_main_ref_store(the_repository), refname, resolve_flags, oid, flags); } @@ -228,7 +230,7 @@ int refs_read_ref_full(struct ref_store *refs, const char *refname, int read_ref_full(const char *refname, int resolve_flags, struct object_id *oid, int *flags) { - return refs_read_ref_full(get_main_ref_store(), refname, + return refs_read_ref_full(get_main_ref_store(the_repository), refname, resolve_flags, oid, flags); } @@ -301,7 +303,7 @@ enum peel_status peel_object(const struct object_id *name, struct object_id *oid struct object *o = lookup_unknown_object(name->hash); if (o->type == OBJ_NONE) { - int type = oid_object_info(name, NULL); + int type = oid_object_info(the_repository, name, NULL); if (type < 0 || !object_as_type(o, type, 0)) return PEEL_INVALID; } @@ -375,7 +377,7 @@ int refs_for_each_tag_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) int for_each_tag_ref(each_ref_fn fn, void *cb_data) { - return refs_for_each_tag_ref(get_main_ref_store(), fn, cb_data); + return refs_for_each_tag_ref(get_main_ref_store(the_repository), fn, cb_data); } int refs_for_each_branch_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) @@ -385,7 +387,7 @@ int refs_for_each_branch_ref(struct ref_store *refs, each_ref_fn fn, void *cb_da int for_each_branch_ref(each_ref_fn fn, void *cb_data) { - return refs_for_each_branch_ref(get_main_ref_store(), fn, cb_data); + return refs_for_each_branch_ref(get_main_ref_store(the_repository), fn, cb_data); } int refs_for_each_remote_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) @@ -395,7 +397,7 @@ int refs_for_each_remote_ref(struct ref_store *refs, each_ref_fn fn, void *cb_da int for_each_remote_ref(each_ref_fn fn, void *cb_data) { - return refs_for_each_remote_ref(get_main_ref_store(), fn, cb_data); + return refs_for_each_remote_ref(get_main_ref_store(the_repository), fn, cb_data); } int head_ref_namespaced(each_ref_fn fn, void *cb_data) @@ -502,6 +504,19 @@ int refname_match(const char *abbrev_name, const char *full_name) } /* + * Given a 'prefix' expand it by the rules in 'ref_rev_parse_rules' and add + * the results to 'prefixes' + */ +void expand_ref_prefix(struct argv_array *prefixes, const char *prefix) +{ + const char **p; + int len = strlen(prefix); + + for (p = ref_rev_parse_rules; *p; p++) + argv_array_pushf(prefixes, *p, len, prefix); +} + +/* * *string and *len will only be substituted, and *string returned (for * later free()ing) if the string passed in is a magic short-hand form * to name a branch. @@ -600,7 +615,8 @@ int dwim_log(const char *str, int len, struct object_id *oid, char **log) static int is_per_worktree_ref(const char *refname) { return !strcmp(refname, "HEAD") || - starts_with(refname, "refs/bisect/"); + starts_with(refname, "refs/bisect/") || + starts_with(refname, "refs/rewritten/"); } static int is_pseudoref_syntax(const char *refname) @@ -644,7 +660,7 @@ static int write_pseudoref(const char *pseudoref, const struct object_id *oid, { const char *filename; int fd; - static struct lock_file lock; + struct lock_file lock = LOCK_INIT; struct strbuf buf = STRBUF_INIT; int ret = -1; @@ -654,8 +670,7 @@ static int write_pseudoref(const char *pseudoref, const struct object_id *oid, strbuf_addf(&buf, "%s\n", oid_to_hex(oid)); filename = git_path("%s", pseudoref); - fd = hold_lock_file_for_update_timeout(&lock, filename, - LOCK_DIE_ON_ERROR, + fd = hold_lock_file_for_update_timeout(&lock, filename, 0, get_files_ref_lock_timeout_ms()); if (fd < 0) { strbuf_addf(err, "could not open '%s' for writing: %s", @@ -690,20 +705,23 @@ done: static int delete_pseudoref(const char *pseudoref, const struct object_id *old_oid) { - static struct lock_file lock; const char *filename; filename = git_path("%s", pseudoref); if (old_oid && !is_null_oid(old_oid)) { + struct lock_file lock = LOCK_INIT; int fd; struct object_id actual_old_oid; fd = hold_lock_file_for_update_timeout( - &lock, filename, LOCK_DIE_ON_ERROR, + &lock, filename, 0, get_files_ref_lock_timeout_ms()); - if (fd < 0) - die_errno(_("Could not open '%s' for writing"), filename); + if (fd < 0) { + error_errno(_("could not open '%s' for writing"), + filename); + return -1; + } if (read_ref(pseudoref, &actual_old_oid)) die("could not read ref '%s'", pseudoref); if (oidcmp(&actual_old_oid, old_oid)) { @@ -730,7 +748,7 @@ int refs_delete_ref(struct ref_store *refs, const char *msg, struct strbuf err = STRBUF_INIT; if (ref_type(refname) == REF_TYPE_PSEUDOREF) { - assert(refs == get_main_ref_store()); + assert(refs == get_main_ref_store(the_repository)); return delete_pseudoref(refname, old_oid); } @@ -752,7 +770,7 @@ int refs_delete_ref(struct ref_store *refs, const char *msg, int delete_ref(const char *msg, const char *refname, const struct object_id *old_oid, unsigned int flags) { - return refs_delete_ref(get_main_ref_store(), msg, refname, + return refs_delete_ref(get_main_ref_store(the_repository), msg, refname, old_oid, flags); } @@ -928,7 +946,7 @@ struct ref_transaction *ref_store_transaction_begin(struct ref_store *refs, struct ref_transaction *ref_transaction_begin(struct strbuf *err) { - return ref_store_transaction_begin(get_main_ref_store(), err); + return ref_store_transaction_begin(get_main_ref_store(the_repository), err); } void ref_transaction_free(struct ref_transaction *transaction) @@ -1060,7 +1078,7 @@ int refs_update_ref(struct ref_store *refs, const char *msg, int ret = 0; if (ref_type(refname) == REF_TYPE_PSEUDOREF) { - assert(refs == get_main_ref_store()); + assert(refs == get_main_ref_store(the_repository)); ret = write_pseudoref(refname, new_oid, old_oid, &err); } else { t = ref_store_transaction_begin(refs, &err); @@ -1099,7 +1117,7 @@ int update_ref(const char *msg, const char *refname, const struct object_id *old_oid, unsigned int flags, enum action_on_err onerr) { - return refs_update_ref(get_main_ref_store(), msg, refname, new_oid, + return refs_update_ref(get_main_ref_store(the_repository), msg, refname, new_oid, old_oid, flags, onerr); } @@ -1320,7 +1338,7 @@ int refs_head_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) int head_ref(each_ref_fn fn, void *cb_data) { - return refs_head_ref(get_main_ref_store(), fn, cb_data); + return refs_head_ref(get_main_ref_store(the_repository), fn, cb_data); } struct ref_iterator *refs_ref_iterator_begin( @@ -1379,7 +1397,7 @@ int refs_for_each_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) int for_each_ref(each_ref_fn fn, void *cb_data) { - return refs_for_each_ref(get_main_ref_store(), fn, cb_data); + return refs_for_each_ref(get_main_ref_store(the_repository), fn, cb_data); } int refs_for_each_ref_in(struct ref_store *refs, const char *prefix, @@ -1390,7 +1408,7 @@ int refs_for_each_ref_in(struct ref_store *refs, const char *prefix, int for_each_ref_in(const char *prefix, each_ref_fn fn, void *cb_data) { - return refs_for_each_ref_in(get_main_ref_store(), prefix, fn, cb_data); + return refs_for_each_ref_in(get_main_ref_store(the_repository), prefix, fn, cb_data); } int for_each_fullref_in(const char *prefix, each_ref_fn fn, void *cb_data, unsigned int broken) @@ -1399,7 +1417,7 @@ int for_each_fullref_in(const char *prefix, each_ref_fn fn, void *cb_data, unsig if (broken) flag = DO_FOR_EACH_INCLUDE_BROKEN; - return do_for_each_ref(get_main_ref_store(), + return do_for_each_ref(get_main_ref_store(the_repository), prefix, fn, 0, flag, cb_data); } @@ -1414,9 +1432,9 @@ int refs_for_each_fullref_in(struct ref_store *refs, const char *prefix, return do_for_each_ref(refs, prefix, fn, 0, flag, cb_data); } -int for_each_replace_ref(each_ref_fn fn, void *cb_data) +int for_each_replace_ref(struct repository *r, each_ref_fn fn, void *cb_data) { - return do_for_each_ref(get_main_ref_store(), + return do_for_each_ref(get_main_ref_store(r), git_replace_ref_base, fn, strlen(git_replace_ref_base), DO_FOR_EACH_INCLUDE_BROKEN, cb_data); @@ -1427,7 +1445,7 @@ int for_each_namespaced_ref(each_ref_fn fn, void *cb_data) struct strbuf buf = STRBUF_INIT; int ret; strbuf_addf(&buf, "%srefs/", get_git_namespace()); - ret = do_for_each_ref(get_main_ref_store(), + ret = do_for_each_ref(get_main_ref_store(the_repository), buf.buf, fn, 0, 0, cb_data); strbuf_release(&buf); return ret; @@ -1441,7 +1459,7 @@ int refs_for_each_rawref(struct ref_store *refs, each_ref_fn fn, void *cb_data) int for_each_rawref(each_ref_fn fn, void *cb_data) { - return refs_for_each_rawref(get_main_ref_store(), fn, cb_data); + return refs_for_each_rawref(get_main_ref_store(the_repository), fn, cb_data); } int refs_read_raw_ref(struct ref_store *ref_store, @@ -1547,7 +1565,7 @@ const char *refs_resolve_ref_unsafe(struct ref_store *refs, /* backend functions */ int refs_init_db(struct strbuf *err) { - struct ref_store *refs = get_main_ref_store(); + struct ref_store *refs = get_main_ref_store(the_repository); return refs->be->init_db(refs, err); } @@ -1555,7 +1573,7 @@ int refs_init_db(struct strbuf *err) const char *resolve_ref_unsafe(const char *refname, int resolve_flags, struct object_id *oid, int *flags) { - return refs_resolve_ref_unsafe(get_main_ref_store(), refname, + return refs_resolve_ref_unsafe(get_main_ref_store(the_repository), refname, resolve_flags, oid, flags); } @@ -1607,9 +1625,6 @@ static struct ref_store_hash_entry *alloc_ref_store_hash_entry( return entry; } -/* A pointer to the ref_store for the main repository: */ -static struct ref_store *main_ref_store; - /* A hashmap of ref_stores, stored by submodule name: */ static struct hashmap submodule_ref_stores; @@ -1651,13 +1666,16 @@ static struct ref_store *ref_store_init(const char *gitdir, return refs; } -struct ref_store *get_main_ref_store(void) +struct ref_store *get_main_ref_store(struct repository *r) { - if (main_ref_store) - return main_ref_store; + if (r->refs) + return r->refs; + + if (!r->gitdir) + BUG("attempting to get main_ref_store outside of repository"); - main_ref_store = ref_store_init(get_git_dir(), REF_STORE_ALL_CAPS); - return main_ref_store; + r->refs = ref_store_init(r->gitdir, REF_STORE_ALL_CAPS); + return r->refs; } /* @@ -1726,7 +1744,7 @@ struct ref_store *get_worktree_ref_store(const struct worktree *wt) const char *id; if (wt->is_current) - return get_main_ref_store(); + return get_main_ref_store(the_repository); id = wt->id ? wt->id : "/"; refs = lookup_ref_store_map(&worktree_ref_stores, id); @@ -1782,7 +1800,7 @@ int refs_peel_ref(struct ref_store *refs, const char *refname, int peel_ref(const char *refname, struct object_id *oid) { - return refs_peel_ref(get_main_ref_store(), refname, oid); + return refs_peel_ref(get_main_ref_store(the_repository), refname, oid); } int refs_create_symref(struct ref_store *refs, @@ -1798,7 +1816,7 @@ int refs_create_symref(struct ref_store *refs, int create_symref(const char *ref_target, const char *refs_heads_master, const char *logmsg) { - return refs_create_symref(get_main_ref_store(), ref_target, + return refs_create_symref(get_main_ref_store(the_repository), ref_target, refs_heads_master, logmsg); } @@ -2006,7 +2024,7 @@ int refs_for_each_reflog(struct ref_store *refs, each_ref_fn fn, void *cb_data) int for_each_reflog(each_ref_fn fn, void *cb_data) { - return refs_for_each_reflog(get_main_ref_store(), fn, cb_data); + return refs_for_each_reflog(get_main_ref_store(the_repository), fn, cb_data); } int refs_for_each_reflog_ent_reverse(struct ref_store *refs, @@ -2021,7 +2039,7 @@ int refs_for_each_reflog_ent_reverse(struct ref_store *refs, int for_each_reflog_ent_reverse(const char *refname, each_reflog_ent_fn fn, void *cb_data) { - return refs_for_each_reflog_ent_reverse(get_main_ref_store(), + return refs_for_each_reflog_ent_reverse(get_main_ref_store(the_repository), refname, fn, cb_data); } @@ -2034,7 +2052,7 @@ int refs_for_each_reflog_ent(struct ref_store *refs, const char *refname, int for_each_reflog_ent(const char *refname, each_reflog_ent_fn fn, void *cb_data) { - return refs_for_each_reflog_ent(get_main_ref_store(), refname, + return refs_for_each_reflog_ent(get_main_ref_store(the_repository), refname, fn, cb_data); } @@ -2045,7 +2063,7 @@ int refs_reflog_exists(struct ref_store *refs, const char *refname) int reflog_exists(const char *refname) { - return refs_reflog_exists(get_main_ref_store(), refname); + return refs_reflog_exists(get_main_ref_store(the_repository), refname); } int refs_create_reflog(struct ref_store *refs, const char *refname, @@ -2057,7 +2075,7 @@ int refs_create_reflog(struct ref_store *refs, const char *refname, int safe_create_reflog(const char *refname, int force_create, struct strbuf *err) { - return refs_create_reflog(get_main_ref_store(), refname, + return refs_create_reflog(get_main_ref_store(the_repository), refname, force_create, err); } @@ -2068,7 +2086,7 @@ int refs_delete_reflog(struct ref_store *refs, const char *refname) int delete_reflog(const char *refname) { - return refs_delete_reflog(get_main_ref_store(), refname); + return refs_delete_reflog(get_main_ref_store(the_repository), refname); } int refs_reflog_expire(struct ref_store *refs, @@ -2091,7 +2109,7 @@ int reflog_expire(const char *refname, const struct object_id *oid, reflog_expiry_cleanup_fn cleanup_fn, void *policy_cb_data) { - return refs_reflog_expire(get_main_ref_store(), + return refs_reflog_expire(get_main_ref_store(the_repository), refname, oid, flags, prepare_fn, should_prune_fn, cleanup_fn, policy_cb_data); @@ -2114,7 +2132,7 @@ int refs_delete_refs(struct ref_store *refs, const char *msg, int delete_refs(const char *msg, struct string_list *refnames, unsigned int flags) { - return refs_delete_refs(get_main_ref_store(), msg, refnames, flags); + return refs_delete_refs(get_main_ref_store(the_repository), msg, refnames, flags); } int refs_rename_ref(struct ref_store *refs, const char *oldref, @@ -2125,7 +2143,7 @@ int refs_rename_ref(struct ref_store *refs, const char *oldref, int rename_ref(const char *oldref, const char *newref, const char *logmsg) { - return refs_rename_ref(get_main_ref_store(), oldref, newref, logmsg); + return refs_rename_ref(get_main_ref_store(the_repository), oldref, newref, logmsg); } int refs_copy_existing_ref(struct ref_store *refs, const char *oldref, @@ -2136,5 +2154,5 @@ int refs_copy_existing_ref(struct ref_store *refs, const char *oldref, int copy_existing_ref(const char *oldref, const char *newref, const char *logmsg) { - return refs_copy_existing_ref(get_main_ref_store(), oldref, newref, logmsg); + return refs_copy_existing_ref(get_main_ref_store(the_repository), oldref, newref, logmsg); } @@ -139,6 +139,13 @@ int resolve_gitlink_ref(const char *submodule, const char *refname, */ int refname_match(const char *abbrev_name, const char *full_name); +/* + * Given a 'prefix' expand it by the rules in 'ref_rev_parse_rules' and add + * the results to 'prefixes' + */ +struct argv_array; +void expand_ref_prefix(struct argv_array *prefixes, const char *prefix); + int expand_ref(const char *str, int len, struct object_id *oid, char **ref); int dwim_ref(const char *str, int len, struct object_id *oid, char **ref); int dwim_log(const char *str, int len, struct object_id *oid, char **ref); @@ -300,7 +307,7 @@ int for_each_fullref_in(const char *prefix, each_ref_fn fn, void *cb_data, int for_each_tag_ref(each_ref_fn fn, void *cb_data); int for_each_branch_ref(each_ref_fn fn, void *cb_data); int for_each_remote_ref(each_ref_fn fn, void *cb_data); -int for_each_replace_ref(each_ref_fn fn, void *cb_data); +int for_each_replace_ref(struct repository *r, each_ref_fn fn, void *cb_data); int for_each_glob_ref(each_ref_fn fn, const char *pattern, void *cb_data); int for_each_glob_ref_in(each_ref_fn fn, const char *pattern, const char *prefix, void *cb_data); @@ -758,7 +765,7 @@ int reflog_expire(const char *refname, const struct object_id *oid, int ref_storage_backend_exists(const char *name); -struct ref_store *get_main_ref_store(void); +struct ref_store *get_main_ref_store(struct repository *r); /* * Return the ref_store instance for the specified submodule. For the * main repository, use submodule==NULL; such a call cannot fail. For diff --git a/refs/files-backend.c b/refs/files-backend.c index 332da47edd..a9a066dcfb 100644 --- a/refs/files-backend.c +++ b/refs/files-backend.c @@ -62,10 +62,6 @@ struct ref_lock { struct object_id old_oid; }; -/* - * Future: need to be in "struct repository" - * when doing a full libification. - */ struct files_ref_store { struct ref_store base; unsigned int store_flags; @@ -2995,7 +2991,7 @@ static int files_reflog_expire(struct ref_store *ref_store, { struct files_ref_store *refs = files_downcast(ref_store, REF_STORE_WRITE, "reflog_expire"); - static struct lock_file reflog_lock; + struct lock_file reflog_lock = LOCK_INIT; struct expire_reflog_cb cb; struct ref_lock *lock; struct strbuf log_file_sb = STRBUF_INIT; diff --git a/remote-curl.c b/remote-curl.c index 8d2ffaf8de..ceb05347bd 100644 --- a/remote-curl.c +++ b/remote-curl.c @@ -1,6 +1,7 @@ #include "cache.h" #include "config.h" #include "remote.h" +#include "connect.h" #include "strbuf.h" #include "walker.h" #include "http.h" @@ -13,6 +14,7 @@ #include "credential.h" #include "sha1-array.h" #include "send-pack.h" +#include "protocol.h" #include "quote.h" static struct remote *remote; @@ -184,12 +186,13 @@ static int set_option(const char *name, const char *value) } struct discovery { - const char *service; + char *service; char *buf_alloc; char *buf; size_t len; struct ref *refs; struct oid_array shallow; + enum protocol_version version; unsigned proto_git : 1; }; static struct discovery *last_discovery; @@ -197,8 +200,31 @@ static struct discovery *last_discovery; static struct ref *parse_git_refs(struct discovery *heads, int for_push) { struct ref *list = NULL; - get_remote_heads(-1, heads->buf, heads->len, &list, - for_push ? REF_NORMAL : 0, NULL, &heads->shallow); + struct packet_reader reader; + + packet_reader_init(&reader, -1, heads->buf, heads->len, + PACKET_READ_CHOMP_NEWLINE | + PACKET_READ_GENTLE_ON_EOF); + + heads->version = discover_version(&reader); + switch (heads->version) { + case protocol_v2: + /* + * Do nothing. This isn't a list of refs but rather a + * capability advertisement. Client would have run + * 'stateless-connect' so we'll dump this capability listing + * and let them request the refs themselves. + */ + break; + case protocol_v1: + case protocol_v0: + get_remote_heads(&reader, &list, for_push ? REF_NORMAL : 0, + NULL, &heads->shallow); + break; + case protocol_unknown_version: + BUG("unknown protocol version"); + } + return list; } @@ -259,6 +285,7 @@ static void free_discovery(struct discovery *d) free(d->shallow.oid); free(d->buf_alloc); free_refs(d->refs); + free(d->service); free(d); } } @@ -290,6 +317,19 @@ static int show_http_message(struct strbuf *type, struct strbuf *charset, return 0; } +static int get_protocol_http_header(enum protocol_version version, + struct strbuf *header) +{ + if (version > 0) { + strbuf_addf(header, GIT_PROTOCOL_HEADER ": version=%d", + version); + + return 1; + } + + return 0; +} + static struct discovery *discover_refs(const char *service, int for_push) { struct strbuf exp = STRBUF_INIT; @@ -298,9 +338,12 @@ static struct discovery *discover_refs(const char *service, int for_push) struct strbuf buffer = STRBUF_INIT; struct strbuf refs_url = STRBUF_INIT; struct strbuf effective_url = STRBUF_INIT; + struct strbuf protocol_header = STRBUF_INIT; + struct string_list extra_headers = STRING_LIST_INIT_DUP; struct discovery *last = last_discovery; int http_ret, maybe_smart = 0; struct http_get_options http_options; + enum protocol_version version = get_protocol_version_config(); if (last && !strcmp(service, last->service)) return last; @@ -317,11 +360,24 @@ static struct discovery *discover_refs(const char *service, int for_push) strbuf_addf(&refs_url, "service=%s", service); } + /* + * NEEDSWORK: If we are trying to use protocol v2 and we are planning + * to perform a push, then fallback to v0 since the client doesn't know + * how to push yet using v2. + */ + if (version == protocol_v2 && !strcmp("git-receive-pack", service)) + version = protocol_v0; + + /* Add the extra Git-Protocol header */ + if (get_protocol_http_header(version, &protocol_header)) + string_list_append(&extra_headers, protocol_header.buf); + memset(&http_options, 0, sizeof(http_options)); http_options.content_type = &type; http_options.charset = &charset; http_options.effective_url = &effective_url; http_options.base_url = &url; + http_options.extra_headers = &extra_headers; http_options.initial_request = 1; http_options.no_cache = 1; http_options.keep_error = 1; @@ -345,7 +401,7 @@ static struct discovery *discover_refs(const char *service, int for_push) warning(_("redirecting to %s"), url.buf); last= xcalloc(1, sizeof(*last_discovery)); - last->service = service; + last->service = xstrdup(service); last->buf_alloc = strbuf_detach(&buffer, &last->len); last->buf = last->buf_alloc; @@ -377,6 +433,9 @@ static struct discovery *discover_refs(const char *service, int for_push) ; last->proto_git = 1; + } else if (maybe_smart && + last->len > 5 && starts_with(last->buf + 4, "version 2")) { + last->proto_git = 1; } if (last->proto_git) @@ -390,6 +449,8 @@ static struct discovery *discover_refs(const char *service, int for_push) strbuf_release(&charset); strbuf_release(&effective_url); strbuf_release(&buffer); + strbuf_release(&protocol_header); + string_list_clear(&extra_headers, 0); last_discovery = last; return last; } @@ -426,6 +487,7 @@ struct rpc_state { char *service_url; char *hdr_content_type; char *hdr_accept; + char *protocol_header; char *buf; size_t alloc; size_t len; @@ -612,6 +674,10 @@ static int post_rpc(struct rpc_state *rpc) headers = curl_slist_append(headers, needs_100_continue ? "Expect: 100-continue" : "Expect:"); + /* Add the extra Git-Protocol header */ + if (rpc->protocol_header) + headers = curl_slist_append(headers, rpc->protocol_header); + retry: slot = get_active_slot(); @@ -752,6 +818,11 @@ static int rpc_service(struct rpc_state *rpc, struct discovery *heads) strbuf_addf(&buf, "Accept: application/x-%s-result", svc); rpc->hdr_accept = strbuf_detach(&buf, NULL); + if (get_protocol_http_header(heads->version, &buf)) + rpc->protocol_header = strbuf_detach(&buf, NULL); + else + rpc->protocol_header = NULL; + while (!err) { int n = packet_read(rpc->out, NULL, NULL, rpc->buf, rpc->alloc, 0); if (!n) @@ -779,6 +850,7 @@ static int rpc_service(struct rpc_state *rpc, struct discovery *heads) free(rpc->service_url); free(rpc->hdr_content_type); free(rpc->hdr_accept); + free(rpc->protocol_header); free(rpc->buf); strbuf_release(&buf); return err; @@ -797,9 +869,6 @@ static int fetch_dumb(int nr_heads, struct ref **to_fetch) targets[i] = xstrdup(oid_to_hex(&to_fetch[i]->old_oid)); walker = get_http_walker(url.buf); - walker->get_all = 1; - walker->get_tree = 1; - walker->get_history = 1; walker->get_verbosely = options.verbosity >= 3; walker->get_recover = 0; ret = walker_fetch(walker, nr_heads, targets, NULL, NULL); @@ -1056,6 +1125,202 @@ static void parse_push(struct strbuf *buf) free(specs); } +/* + * Used to represent the state of a connection to an HTTP server when + * communicating using git's wire-protocol version 2. + */ +struct proxy_state { + char *service_name; + char *service_url; + struct curl_slist *headers; + struct strbuf request_buffer; + int in; + int out; + struct packet_reader reader; + size_t pos; + int seen_flush; +}; + +static void proxy_state_init(struct proxy_state *p, const char *service_name, + enum protocol_version version) +{ + struct strbuf buf = STRBUF_INIT; + + memset(p, 0, sizeof(*p)); + p->service_name = xstrdup(service_name); + + p->in = 0; + p->out = 1; + strbuf_init(&p->request_buffer, 0); + + strbuf_addf(&buf, "%s%s", url.buf, p->service_name); + p->service_url = strbuf_detach(&buf, NULL); + + p->headers = http_copy_default_headers(); + + strbuf_addf(&buf, "Content-Type: application/x-%s-request", p->service_name); + p->headers = curl_slist_append(p->headers, buf.buf); + strbuf_reset(&buf); + + strbuf_addf(&buf, "Accept: application/x-%s-result", p->service_name); + p->headers = curl_slist_append(p->headers, buf.buf); + strbuf_reset(&buf); + + p->headers = curl_slist_append(p->headers, "Transfer-Encoding: chunked"); + + /* Add the Git-Protocol header */ + if (get_protocol_http_header(version, &buf)) + p->headers = curl_slist_append(p->headers, buf.buf); + + packet_reader_init(&p->reader, p->in, NULL, 0, + PACKET_READ_GENTLE_ON_EOF); + + strbuf_release(&buf); +} + +static void proxy_state_clear(struct proxy_state *p) +{ + free(p->service_name); + free(p->service_url); + curl_slist_free_all(p->headers); + strbuf_release(&p->request_buffer); +} + +/* + * CURLOPT_READFUNCTION callback function. + * Attempts to copy over a single packet-line at a time into the + * curl provided buffer. + */ +static size_t proxy_in(char *buffer, size_t eltsize, + size_t nmemb, void *userdata) +{ + size_t max; + struct proxy_state *p = userdata; + size_t avail = p->request_buffer.len - p->pos; + + + if (eltsize != 1) + BUG("curl read callback called with size = %"PRIuMAX" != 1", + (uintmax_t)eltsize); + max = nmemb; + + if (!avail) { + if (p->seen_flush) { + p->seen_flush = 0; + return 0; + } + + strbuf_reset(&p->request_buffer); + switch (packet_reader_read(&p->reader)) { + case PACKET_READ_EOF: + die("unexpected EOF when reading from parent process"); + case PACKET_READ_NORMAL: + packet_buf_write_len(&p->request_buffer, p->reader.line, + p->reader.pktlen); + break; + case PACKET_READ_DELIM: + packet_buf_delim(&p->request_buffer); + break; + case PACKET_READ_FLUSH: + packet_buf_flush(&p->request_buffer); + p->seen_flush = 1; + break; + } + p->pos = 0; + avail = p->request_buffer.len; + } + + if (max < avail) + avail = max; + memcpy(buffer, p->request_buffer.buf + p->pos, avail); + p->pos += avail; + return avail; +} + +static size_t proxy_out(char *buffer, size_t eltsize, + size_t nmemb, void *userdata) +{ + size_t size; + struct proxy_state *p = userdata; + + if (eltsize != 1) + BUG("curl read callback called with size = %"PRIuMAX" != 1", + (uintmax_t)eltsize); + size = nmemb; + + write_or_die(p->out, buffer, size); + return size; +} + +/* Issues a request to the HTTP server configured in `p` */ +static int proxy_request(struct proxy_state *p) +{ + struct active_request_slot *slot; + + slot = get_active_slot(); + + curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0); + curl_easy_setopt(slot->curl, CURLOPT_POST, 1); + curl_easy_setopt(slot->curl, CURLOPT_URL, p->service_url); + curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, p->headers); + + /* Setup function to read request from client */ + curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, proxy_in); + curl_easy_setopt(slot->curl, CURLOPT_READDATA, p); + + /* Setup function to write server response to client */ + curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, proxy_out); + curl_easy_setopt(slot->curl, CURLOPT_WRITEDATA, p); + + if (run_slot(slot, NULL) != HTTP_OK) + return -1; + + return 0; +} + +static int stateless_connect(const char *service_name) +{ + struct discovery *discover; + struct proxy_state p; + + /* + * Run the info/refs request and see if the server supports protocol + * v2. If and only if the server supports v2 can we successfully + * establish a stateless connection, otherwise we need to tell the + * client to fallback to using other transport helper functions to + * complete their request. + */ + discover = discover_refs(service_name, 0); + if (discover->version != protocol_v2) { + printf("fallback\n"); + fflush(stdout); + return -1; + } else { + /* Stateless Connection established */ + printf("\n"); + fflush(stdout); + } + + proxy_state_init(&p, service_name, discover->version); + + /* + * Dump the capability listing that we got from the server earlier + * during the info/refs request. + */ + write_or_die(p.out, discover->buf, discover->len); + + /* Peek the next packet line. Until we see EOF keep sending POSTs */ + while (packet_reader_peek(&p.reader) != PACKET_READ_EOF) { + if (proxy_request(&p)) { + /* We would have an err here */ + break; + } + } + + proxy_state_clear(&p); + return 0; +} + int cmd_main(int argc, const char **argv) { struct strbuf buf = STRBUF_INIT; @@ -1124,12 +1389,16 @@ int cmd_main(int argc, const char **argv) fflush(stdout); } else if (!strcmp(buf.buf, "capabilities")) { + printf("stateless-connect\n"); printf("fetch\n"); printf("option\n"); printf("push\n"); printf("check-connectivity\n"); printf("\n"); fflush(stdout); + } else if (skip_prefix(buf.buf, "stateless-connect ", &arg)) { + if (!stateless_connect(arg)) + break; } else { error("remote-curl: unknown command '%s' from git", buf.buf); return 1; @@ -1376,7 +1376,7 @@ static void add_missing_tags(struct ref *src, struct ref **dst, struct ref ***ds continue; /* not a tag */ if (string_list_has_string(&dst_tag, ref->name)) continue; /* they already have it */ - if (oid_object_info(&ref->new_oid, NULL) != OBJ_TAG) + if (oid_object_info(the_repository, &ref->new_oid, NULL) != OBJ_TAG) continue; /* be conservative */ item = string_list_append(&src_tag, ref->name); item->util = ref; @@ -151,10 +151,19 @@ int check_ref_type(const struct ref *ref, int flags); void free_refs(struct ref *ref); struct oid_array; -extern struct ref **get_remote_heads(int in, char *src_buf, size_t src_len, +struct packet_reader; +struct argv_array; +struct string_list; +extern struct ref **get_remote_heads(struct packet_reader *reader, struct ref **list, unsigned int flags, struct oid_array *extra_have, - struct oid_array *shallow); + struct oid_array *shallow_points); + +/* Used for protocol v2 in order to retrieve refs from a remote */ +extern struct ref **get_remote_refs(int fd_out, struct packet_reader *reader, + struct ref **list, int for_push, + const struct argv_array *ref_prefixes, + const struct string_list *server_options); int resolve_remote_symref(struct ref *ref, struct ref *list); int ref_newer(const struct object_id *new_oid, const struct object_id *old_oid); diff --git a/replace-object.c b/replace-object.c index 336357394d..801b5c1678 100644 --- a/replace-object.c +++ b/replace-object.c @@ -1,55 +1,11 @@ #include "cache.h" -#include "sha1-lookup.h" +#include "oidmap.h" +#include "object-store.h" +#include "replace-object.h" #include "refs.h" +#include "repository.h" #include "commit.h" -/* - * An array of replacements. The array is kept sorted by the original - * sha1. - */ -static struct replace_object { - struct object_id original; - struct object_id replacement; -} **replace_object; - -static int replace_object_alloc, replace_object_nr; - -static const unsigned char *replace_sha1_access(size_t index, void *table) -{ - struct replace_object **replace = table; - return replace[index]->original.hash; -} - -static int replace_object_pos(const unsigned char *sha1) -{ - return sha1_pos(sha1, replace_object, replace_object_nr, - replace_sha1_access); -} - -static int register_replace_object(struct replace_object *replace, - int ignore_dups) -{ - int pos = replace_object_pos(replace->original.hash); - - if (0 <= pos) { - if (ignore_dups) - free(replace); - else { - free(replace_object[pos]); - replace_object[pos] = replace; - } - return 1; - } - pos = -pos - 1; - ALLOC_GROW(replace_object, replace_object_nr + 1, replace_object_alloc); - replace_object_nr++; - if (pos < replace_object_nr) - MOVE_ARRAY(replace_object + pos + 1, replace_object + pos, - replace_object_nr - pos - 1); - replace_object[pos] = replace; - return 0; -} - static int register_replace_ref(const char *refname, const struct object_id *oid, int flag, void *cb_data) @@ -59,7 +15,7 @@ static int register_replace_ref(const char *refname, const char *hash = slash ? slash + 1 : refname; struct replace_object *repl_obj = xmalloc(sizeof(*repl_obj)); - if (get_oid_hex(hash, &repl_obj->original)) { + if (get_oid_hex(hash, &repl_obj->original.oid)) { free(repl_obj); warning("bad replace ref name: %s", refname); return 0; @@ -69,23 +25,22 @@ static int register_replace_ref(const char *refname, oidcpy(&repl_obj->replacement, oid); /* Register new object */ - if (register_replace_object(repl_obj, 1)) + if (oidmap_put(the_repository->objects->replace_map, repl_obj)) die("duplicate replace ref: %s", refname); return 0; } -static void prepare_replace_object(void) +static void prepare_replace_object(struct repository *r) { - static int replace_object_prepared; - - if (replace_object_prepared) + if (r->objects->replace_map) return; - for_each_replace_ref(register_replace_ref, NULL); - replace_object_prepared = 1; - if (!replace_object_nr) - check_replace_refs = 0; + r->objects->replace_map = + xmalloc(sizeof(*r->objects->replace_map)); + oidmap_init(r->objects->replace_map, 0); + + for_each_replace_ref(r, register_replace_ref, NULL); } /* We allow "recursive" replacement. Only within reason, though */ @@ -98,23 +53,21 @@ static void prepare_replace_object(void) * permanently-allocated value. This function always respects replace * references, regardless of the value of check_replace_refs. */ -const struct object_id *do_lookup_replace_object(const struct object_id *oid) +const struct object_id *do_lookup_replace_object(struct repository *r, + const struct object_id *oid) { - int pos, depth = MAXREPLACEDEPTH; + int depth = MAXREPLACEDEPTH; const struct object_id *cur = oid; - prepare_replace_object(); + prepare_replace_object(r); /* Try to recursively replace the object */ - do { - if (--depth < 0) - die("replace depth too high for object %s", - oid_to_hex(oid)); - - pos = replace_object_pos(cur->hash); - if (0 <= pos) - cur = &replace_object[pos]->replacement; - } while (0 <= pos); - - return cur; + while (depth-- > 0) { + struct replace_object *repl_obj = + oidmap_get(r->objects->replace_map, cur); + if (!repl_obj) + return cur; + cur = &repl_obj->replacement; + } + die("replace depth too high for object %s", oid_to_hex(oid)); } diff --git a/replace-object.h b/replace-object.h new file mode 100644 index 0000000000..f996de3d62 --- /dev/null +++ b/replace-object.h @@ -0,0 +1,36 @@ +#ifndef REPLACE_OBJECT_H +#define REPLACE_OBJECT_H + +#include "oidmap.h" +#include "repository.h" +#include "object-store.h" + +struct replace_object { + struct oidmap_entry original; + struct object_id replacement; +}; + +/* + * This internal function is only declared here for the benefit of + * lookup_replace_object(). Please do not call it directly. + */ +extern const struct object_id *do_lookup_replace_object(struct repository *r, + const struct object_id *oid); + +/* + * If object sha1 should be replaced, return the replacement object's + * name (replaced recursively, if necessary). The return value is + * either sha1 or a pointer to a permanently-allocated value. When + * object replacement is suppressed, always return sha1. + */ +static inline const struct object_id *lookup_replace_object(struct repository *r, + const struct object_id *oid) +{ + if (!check_replace_refs || + (r->objects->replace_map && + r->objects->replace_map->map.tablesize == 0)) + return oid; + return do_lookup_replace_object(r, oid); +} + +#endif /* REPLACE_OBJECT_H */ diff --git a/repository.c b/repository.c index a4848c1bd0..02fe884603 100644 --- a/repository.c +++ b/repository.c @@ -135,9 +135,9 @@ static int read_and_verify_repository_format(struct repository_format *format, * Initialize 'repo' based on the provided 'gitdir'. * Return 0 upon success and a non-zero value upon failure. */ -static int repo_init(struct repository *repo, - const char *gitdir, - const char *worktree) +int repo_init(struct repository *repo, + const char *gitdir, + const char *worktree) { struct repository_format format; memset(repo, 0, sizeof(*repo)); @@ -176,7 +176,7 @@ int repo_submodule_init(struct repository *submodule, struct strbuf worktree = STRBUF_INIT; int ret = 0; - sub = submodule_from_cache(superproject, &null_oid, path); + sub = submodule_from_path(superproject, &null_oid, path); if (!sub) { ret = -1; goto out; @@ -238,7 +238,8 @@ void repo_clear(struct repository *repo) if (repo->index) { discard_index(repo->index); - FREE_AND_NULL(repo->index); + if (repo->index != &the_index) + FREE_AND_NULL(repo->index); } } diff --git a/repository.h b/repository.h index 09df94a472..f2646f0c52 100644 --- a/repository.h +++ b/repository.h @@ -26,6 +26,9 @@ struct repository { */ struct raw_object_store *objects; + /* The store in which the refs are held. */ + struct ref_store *refs; + /* * Path to the repository's graft file. * Cannot be NULL after initialization. @@ -97,6 +100,9 @@ extern void repo_set_gitdir(struct repository *repo, extern void repo_set_worktree(struct repository *repo, const char *path); extern void repo_set_hash_algo(struct repository *repo, int algo); extern void initialize_the_repository(void); +extern int repo_init(struct repository *r, + const char *gitdir, + const char *worktree); extern int repo_submodule_init(struct repository *submodule, struct repository *superproject, const char *path); @@ -703,10 +703,9 @@ out: return ret; } -static struct lock_file index_lock; - static void update_paths(struct string_list *update) { + struct lock_file index_lock = LOCK_INIT; int i; hold_locked_index(&index_lock, LOCK_DIE_ON_ERROR); diff --git a/revision.c b/revision.c index 67f8e74cbb..dc756918e8 100644 --- a/revision.c +++ b/revision.c @@ -6,6 +6,7 @@ #include "diff.h" #include "refs.h" #include "revision.h" +#include "repository.h" #include "graph.h" #include "grep.h" #include "reflog-walk.h" @@ -440,8 +441,8 @@ static void file_change(struct diff_options *options, static int rev_compare_tree(struct rev_info *revs, struct commit *parent, struct commit *commit) { - struct tree *t1 = parent->tree; - struct tree *t2 = commit->tree; + struct tree *t1 = get_commit_tree(parent); + struct tree *t2 = get_commit_tree(commit); if (!t1) return REV_TREE_NEW; @@ -477,7 +478,7 @@ static int rev_compare_tree(struct rev_info *revs, static int rev_same_tree_as_empty(struct rev_info *revs, struct commit *commit) { int retval; - struct tree *t1 = commit->tree; + struct tree *t1 = get_commit_tree(commit); if (!t1) return 0; @@ -615,7 +616,7 @@ static void try_to_simplify_commit(struct rev_info *revs, struct commit *commit) if (!revs->prune) return; - if (!commit->tree) + if (!get_commit_tree(commit)) return; if (!commit->parents) { @@ -1285,7 +1286,7 @@ void add_reflogs_to_pending(struct rev_info *revs, unsigned flags) cb.all_revs = revs; cb.all_flags = flags; - cb.refs = get_main_ref_store(); + cb.refs = get_main_ref_store(the_repository); for_each_reflog(handle_one_reflog, &cb); if (!revs->single_worktree) @@ -2176,7 +2177,7 @@ static int handle_revision_pseudo_opt(const char *submodule, BUG("--single-worktree cannot be used together with submodule"); refs = get_submodule_ref_store(submodule); } else - refs = get_main_ref_store(); + refs = get_main_ref_store(the_repository); /* * NOTE! diff --git a/sequencer.c b/sequencer.c index 5e3a50fafc..abb6c5dc26 100644 --- a/sequencer.c +++ b/sequencer.c @@ -23,6 +23,10 @@ #include "hashmap.h" #include "notes-utils.h" #include "sigchain.h" +#include "unpack-trees.h" +#include "worktree.h" +#include "oidmap.h" +#include "oidset.h" #define GIT_REFLOG_ACTION "GIT_REFLOG_ACTION" @@ -74,13 +78,6 @@ static GIT_PATH_FUNC(rebase_path_message, "rebase-merge/message") * previous commit and from the first squash/fixup commit are written * to it. The commit message for each subsequent squash/fixup commit * is appended to the file as it is processed. - * - * The first line of the file is of the form - * # This is a combination of $count commits. - * where $count is the number of commits whose messages have been - * written to the file so far (including the initial "pick" commit). - * Each time that a commit message is processed, this line is read and - * updated. It is deleted just before the combined commit is made. */ static GIT_PATH_FUNC(rebase_path_squash_msg, "rebase-merge/message-squash") /* @@ -92,6 +89,11 @@ static GIT_PATH_FUNC(rebase_path_squash_msg, "rebase-merge/message-squash") */ static GIT_PATH_FUNC(rebase_path_fixup_msg, "rebase-merge/message-fixup") /* + * This file contains the list fixup/squash commands that have been + * accumulated into message-fixup or message-squash so far. + */ +static GIT_PATH_FUNC(rebase_path_current_fixups, "rebase-merge/current-fixups") +/* * A script to set the GIT_AUTHOR_NAME, GIT_AUTHOR_EMAIL, and * GIT_AUTHOR_DATE that will be used for the commit that is currently * being rebased. @@ -120,6 +122,19 @@ static GIT_PATH_FUNC(rebase_path_stopped_sha, "rebase-merge/stopped-sha") static GIT_PATH_FUNC(rebase_path_rewritten_list, "rebase-merge/rewritten-list") static GIT_PATH_FUNC(rebase_path_rewritten_pending, "rebase-merge/rewritten-pending") + +/* + * The path of the file containig the OID of the "squash onto" commit, i.e. + * the dummy commit used for `reset [new root]`. + */ +static GIT_PATH_FUNC(rebase_path_squash_onto, "rebase-merge/squash-onto") + +/* + * The path of the file listing refs that need to be deleted after the rebase + * finishes. This is used by the `label` command to record the need for cleanup. + */ +static GIT_PATH_FUNC(rebase_path_refs_to_delete, "rebase-merge/refs-to-delete") + /* * The following files are written by git-rebase just after parsing the * command-line (and are only consumed, not modified, by the sequencer). @@ -245,18 +260,35 @@ static const char *gpg_sign_opt_quoted(struct replay_opts *opts) int sequencer_remove_state(struct replay_opts *opts) { - struct strbuf dir = STRBUF_INIT; + struct strbuf buf = STRBUF_INIT; int i; + if (is_rebase_i(opts) && + strbuf_read_file(&buf, rebase_path_refs_to_delete(), 0) > 0) { + char *p = buf.buf; + while (*p) { + char *eol = strchr(p, '\n'); + if (eol) + *eol = '\0'; + if (delete_ref("(rebase -i) cleanup", p, NULL, 0) < 0) + warning(_("could not delete '%s'"), p); + if (!eol) + break; + p = eol + 1; + } + } + free(opts->gpg_sign); free(opts->strategy); for (i = 0; i < opts->xopts_nr; i++) free(opts->xopts[i]); free(opts->xopts); + strbuf_release(&opts->current_fixups); - strbuf_addstr(&dir, get_dir(opts)); - remove_dir_recursively(&dir, 0); - strbuf_release(&dir); + strbuf_reset(&buf); + strbuf_addstr(&buf, get_dir(opts)); + remove_dir_recursively(&buf, 0); + strbuf_release(&buf); return 0; } @@ -346,12 +378,14 @@ static int write_message(const void *buf, size_t len, const char *filename, if (msg_fd < 0) return error_errno(_("could not lock '%s'"), filename); if (write_in_full(msg_fd, buf, len) < 0) { + error_errno(_("could not write to '%s'"), filename); rollback_lock_file(&msg_file); - return error_errno(_("could not write to '%s'"), filename); + return -1; } if (append_eol && write(msg_fd, "\n", 1) < 0) { + error_errno(_("could not write eol to '%s'"), filename); rollback_lock_file(&msg_file); - return error_errno(_("could not write eol to '%s'"), filename); + return -1; } if (commit_lock_file(&msg_file) < 0) return error(_("failed to finalize '%s'"), filename); @@ -441,7 +475,8 @@ static int fast_forward_to(const struct object_id *to, const struct object_id *f transaction = ref_transaction_begin(&err); if (!transaction || ref_transaction_update(transaction, "HEAD", - to, unborn ? &null_oid : from, + to, unborn && !is_rebase_i(opts) ? + &null_oid : from, 0, sb.buf, &err) || ref_transaction_commit(transaction, &err)) { ref_transaction_free(transaction); @@ -500,8 +535,8 @@ static int do_recursive_merge(struct commit *base, struct commit *next, o.show_rename_progress = 1; head_tree = parse_tree_indirect(head); - next_tree = next ? next->tree : empty_tree(); - base_tree = base ? base->tree : empty_tree(); + next_tree = next ? get_commit_tree(next) : empty_tree(); + base_tree = base ? get_commit_tree(base) : empty_tree(); for (xopt = opts->xopts; xopt != opts->xopts + opts->xopts_nr; xopt++) parse_merge_opt(&o, *xopt); @@ -533,9 +568,23 @@ static int do_recursive_merge(struct commit *base, struct commit *next, return !clean; } +static struct object_id *get_cache_tree_oid(void) +{ + if (!active_cache_tree) + active_cache_tree = cache_tree(); + + if (!cache_tree_fully_valid(active_cache_tree)) + if (cache_tree_update(&the_index, 0)) { + error(_("unable to update cache tree")); + return NULL; + } + + return &active_cache_tree->oid; +} + static int is_index_unchanged(void) { - struct object_id head_oid; + struct object_id head_oid, *cache_tree_oid; struct commit *head_commit; if (!resolve_ref_unsafe("HEAD", RESOLVE_REF_READING, &head_oid, NULL)) @@ -554,15 +603,10 @@ static int is_index_unchanged(void) if (parse_commit(head_commit)) return -1; - if (!active_cache_tree) - active_cache_tree = cache_tree(); - - if (!cache_tree_fully_valid(active_cache_tree)) - if (cache_tree_update(&the_index, 0)) - return error(_("unable to update cache tree")); + if (!(cache_tree_oid = get_cache_tree_oid())) + return -1; - return !oidcmp(&active_cache_tree->oid, - &head_commit->tree->object.oid); + return !oidcmp(cache_tree_oid, get_commit_tree_oid(head_commit)); } static int write_author_script(const char *message) @@ -654,6 +698,52 @@ static char *get_author(const char *message) return NULL; } +/* Read author-script and return an ident line (author <email> timestamp) */ +static const char *read_author_ident(struct strbuf *buf) +{ + const char *keys[] = { + "GIT_AUTHOR_NAME=", "GIT_AUTHOR_EMAIL=", "GIT_AUTHOR_DATE=" + }; + char *in, *out, *eol; + int i = 0, len; + + if (strbuf_read_file(buf, rebase_path_author_script(), 256) <= 0) + return NULL; + + /* dequote values and construct ident line in-place */ + for (in = out = buf->buf; i < 3 && in - buf->buf < buf->len; i++) { + if (!skip_prefix(in, keys[i], (const char **)&in)) { + warning("could not parse '%s' (looking for '%s'", + rebase_path_author_script(), keys[i]); + return NULL; + } + + eol = strchrnul(in, '\n'); + *eol = '\0'; + sq_dequote(in); + len = strlen(in); + + if (i > 0) /* separate values by spaces */ + *(out++) = ' '; + if (i == 1) /* email needs to be surrounded by <...> */ + *(out++) = '<'; + memmove(out, in, len); + out += len; + if (i == 1) /* email needs to be surrounded by <...> */ + *(out++) = '>'; + in = eol + 1; + } + + if (i < 3) { + warning("could not parse '%s' (looking for '%s')", + rebase_path_author_script(), keys[i]); + return NULL; + } + + buf->len = out - buf->buf; + return buf->buf; +} + static const char staged_changes_advice[] = N_("you have staged changes in your working tree\n" "If these changes are meant to be squashed into the previous commit, run:\n" @@ -673,6 +763,7 @@ N_("you have staged changes in your working tree\n" #define AMEND_MSG (1<<2) #define CLEANUP_MSG (1<<3) #define VERIFY_MSG (1<<4) +#define CREATE_ROOT_COMMIT (1<<5) /* * If we are cherry-pick, and if the merge did not result in @@ -692,6 +783,40 @@ static int run_git_commit(const char *defmsg, struct replay_opts *opts, struct child_process cmd = CHILD_PROCESS_INIT; const char *value; + if (flags & CREATE_ROOT_COMMIT) { + struct strbuf msg = STRBUF_INIT, script = STRBUF_INIT; + const char *author = is_rebase_i(opts) ? + read_author_ident(&script) : NULL; + struct object_id root_commit, *cache_tree_oid; + int res = 0; + + if (!defmsg) + BUG("root commit without message"); + + if (!(cache_tree_oid = get_cache_tree_oid())) + res = -1; + + if (!res) + res = strbuf_read_file(&msg, defmsg, 0); + + if (res <= 0) + res = error_errno(_("could not read '%s'"), defmsg); + else + res = commit_tree(msg.buf, msg.len, cache_tree_oid, + NULL, &root_commit, author, + opts->gpg_sign); + + strbuf_release(&msg); + strbuf_release(&script); + if (!res) { + update_ref(NULL, "CHERRY_PICK_HEAD", &root_commit, NULL, + REF_NO_DEREF, UPDATE_REFS_MSG_ON_ERR); + res = update_ref(NULL, "HEAD", &root_commit, NULL, 0, + UPDATE_REFS_MSG_ON_ERR); + } + return res < 0 ? error(_("writing root commit")) : 0; + } + cmd.git_cmd = 1; if (is_rebase_i(opts)) { @@ -718,6 +843,8 @@ static int run_git_commit(const char *defmsg, struct replay_opts *opts, argv_array_pushf(&cmd.args, "-S%s", opts->gpg_sign); if (defmsg) argv_array_pushl(&cmd.args, "-F", defmsg, NULL); + else if (!(flags & EDIT_MSG)) + argv_array_pushl(&cmd.args, "-C", "HEAD", NULL); if ((flags & CLEANUP_MSG)) argv_array_push(&cmd.args, "--cleanup=strip"); if ((flags & EDIT_MSG)) @@ -1119,7 +1246,7 @@ static int try_to_commit(struct strbuf *msg, const char *author, } if (!(flags & ALLOW_EMPTY) && !oidcmp(current_head ? - ¤t_head->tree->object.oid : + get_commit_tree_oid(current_head) : &empty_tree_oid, &tree)) { res = 1; /* run 'git commit' to display error message */ goto out; @@ -1149,6 +1276,8 @@ static int try_to_commit(struct strbuf *msg, const char *author, goto out; } + reset_ident_date(); + if (commit_tree_extended(msg->buf, msg->len, &tree, parents, oid, author, opts->gpg_sign, extra)) { res = error(_("failed to write commit object")); @@ -1178,7 +1307,8 @@ static int do_commit(const char *msg_file, const char *author, { int res = 1; - if (!(flags & EDIT_MSG) && !(flags & VERIFY_MSG)) { + if (!(flags & EDIT_MSG) && !(flags & VERIFY_MSG) && + !(flags & CREATE_ROOT_COMMIT)) { struct object_id oid; struct strbuf sb = STRBUF_INIT; @@ -1217,12 +1347,12 @@ static int is_original_commit_empty(struct commit *commit) if (parse_commit(parent)) return error(_("could not parse parent commit %s"), oid_to_hex(&parent->object.oid)); - ptree_oid = &parent->tree->object.oid; + ptree_oid = get_commit_tree_oid(parent); } else { ptree_oid = the_hash_algo->empty_tree; /* commit is root */ } - return !oidcmp(ptree_oid, &commit->tree->object.oid); + return !oidcmp(ptree_oid, get_commit_tree_oid(commit)); } /* @@ -1278,6 +1408,9 @@ enum todo_command { TODO_SQUASH, /* commands that do something else than handling a single commit */ TODO_EXEC, + TODO_LABEL, + TODO_RESET, + TODO_MERGE, /* commands that do nothing but are counted for reporting progress */ TODO_NOOP, TODO_DROP, @@ -1296,6 +1429,9 @@ static struct { { 'f', "fixup" }, { 's', "squash" }, { 'x', "exec" }, + { 'l', "label" }, + { 't', "reset" }, + { 'm', "merge" }, { 0, "noop" }, { 'd', "drop" }, { 0, NULL } @@ -1325,38 +1461,43 @@ static int is_fixup(enum todo_command command) return command == TODO_FIXUP || command == TODO_SQUASH; } +/* Does this command create a (non-merge) commit? */ +static int is_pick_or_similar(enum todo_command command) +{ + switch (command) { + case TODO_PICK: + case TODO_REVERT: + case TODO_EDIT: + case TODO_REWORD: + case TODO_FIXUP: + case TODO_SQUASH: + return 1; + default: + return 0; + } +} + static int update_squash_messages(enum todo_command command, struct commit *commit, struct replay_opts *opts) { struct strbuf buf = STRBUF_INIT; - int count, res; + int res; const char *message, *body; - if (file_exists(rebase_path_squash_msg())) { + if (opts->current_fixup_count > 0) { struct strbuf header = STRBUF_INIT; - char *eol, *p; + char *eol; - if (strbuf_read_file(&buf, rebase_path_squash_msg(), 2048) <= 0) + if (strbuf_read_file(&buf, rebase_path_squash_msg(), 9) <= 0) return error(_("could not read '%s'"), rebase_path_squash_msg()); - p = buf.buf + 1; - eol = strchrnul(buf.buf, '\n'); - if (buf.buf[0] != comment_line_char || - (p += strcspn(p, "0123456789\n")) == eol) - return error(_("unexpected 1st line of squash message:" - "\n\n\t%.*s"), - (int)(eol - buf.buf), buf.buf); - count = strtol(p, NULL, 10); - - if (count < 1) - return error(_("invalid 1st line of squash message:\n" - "\n\t%.*s"), - (int)(eol - buf.buf), buf.buf); + eol = buf.buf[0] != comment_line_char ? + buf.buf : strchrnul(buf.buf, '\n'); strbuf_addf(&header, "%c ", comment_line_char); - strbuf_addf(&header, - _("This is a combination of %d commits."), ++count); + strbuf_addf(&header, _("This is a combination of %d commits."), + opts->current_fixup_count + 2); strbuf_splice(&buf, 0, eol - buf.buf, header.buf, header.len); strbuf_release(&header); } else { @@ -1379,10 +1520,8 @@ static int update_squash_messages(enum todo_command command, rebase_path_fixup_msg()); } - count = 2; strbuf_addf(&buf, "%c ", comment_line_char); - strbuf_addf(&buf, _("This is a combination of %d commits."), - count); + strbuf_addf(&buf, _("This is a combination of %d commits."), 2); strbuf_addf(&buf, "\n%c ", comment_line_char); strbuf_addstr(&buf, _("This is the 1st commit message:")); strbuf_addstr(&buf, "\n\n"); @@ -1399,13 +1538,14 @@ static int update_squash_messages(enum todo_command command, if (command == TODO_SQUASH) { unlink(rebase_path_fixup_msg()); strbuf_addf(&buf, "\n%c ", comment_line_char); - strbuf_addf(&buf, _("This is the commit message #%d:"), count); + strbuf_addf(&buf, _("This is the commit message #%d:"), + ++opts->current_fixup_count); strbuf_addstr(&buf, "\n\n"); strbuf_addstr(&buf, body); } else if (command == TODO_FIXUP) { strbuf_addf(&buf, "\n%c ", comment_line_char); strbuf_addf(&buf, _("The commit message #%d will be skipped:"), - count); + ++opts->current_fixup_count); strbuf_addstr(&buf, "\n\n"); strbuf_add_commented_lines(&buf, body, strlen(body)); } else @@ -1414,6 +1554,17 @@ static int update_squash_messages(enum todo_command command, res = write_message(buf.buf, buf.len, rebase_path_squash_msg(), 0); strbuf_release(&buf); + + if (!res) { + strbuf_addf(&opts->current_fixups, "%s%s %s", + opts->current_fixups.len ? "\n" : "", + command_to_string(command), + oid_to_hex(&commit->object.oid)); + res = write_message(opts->current_fixups.buf, + opts->current_fixups.len, + rebase_path_current_fixups(), 0); + } + return res; } @@ -1479,7 +1630,14 @@ static int do_pick_commit(enum todo_command command, struct commit *commit, return error(_("your index file is unmerged.")); } else { unborn = get_oid("HEAD", &head); - if (unborn) + /* Do we want to generate a root commit? */ + if (is_pick_or_similar(command) && opts->have_squash_onto && + !oidcmp(&head, &opts->squash_onto)) { + if (is_fixup(command)) + return error(_("cannot fixup root commit")); + flags |= CREATE_ROOT_COMMIT; + unborn = 1; + } else if (unborn) oidcpy(&head, the_hash_algo->empty_tree); if (index_differs_from(unborn ? EMPTY_TREE_SHA1_HEX : "HEAD", NULL, 0)) @@ -1676,6 +1834,9 @@ fast_forward_edit: if (!res && final_fixup) { unlink(rebase_path_fixup_msg()); unlink(rebase_path_squash_msg()); + unlink(rebase_path_current_fixups()); + strbuf_reset(&opts->current_fixups); + opts->current_fixup_count = 0; } leave: @@ -1723,9 +1884,14 @@ static int read_and_refresh_cache(struct replay_opts *opts) return 0; } +enum todo_item_flags { + TODO_EDIT_MERGE_MSG = 1 +}; + struct todo_item { enum todo_command command; struct commit *commit; + unsigned int flags; const char *arg; int arg_len; size_t offset_in_buf; @@ -1760,6 +1926,8 @@ static int parse_insn_line(struct todo_item *item, const char *bol, char *eol) char *end_of_object_name; int i, saved, status, padding; + item->flags = 0; + /* left-trim */ bol += strspn(bol, " \t"); @@ -1801,13 +1969,29 @@ static int parse_insn_line(struct todo_item *item, const char *bol, char *eol) return error(_("missing arguments for %s"), command_to_string(item->command)); - if (item->command == TODO_EXEC) { + if (item->command == TODO_EXEC || item->command == TODO_LABEL || + item->command == TODO_RESET) { item->commit = NULL; item->arg = bol; item->arg_len = (int)(eol - bol); return 0; } + if (item->command == TODO_MERGE) { + if (skip_prefix(bol, "-C", &bol)) + bol += strspn(bol, " \t"); + else if (skip_prefix(bol, "-c", &bol)) { + bol += strspn(bol, " \t"); + item->flags |= TODO_EDIT_MERGE_MSG; + } else { + item->flags |= TODO_EDIT_MERGE_MSG; + item->commit = NULL; + item->arg = bol; + item->arg_len = (int)(eol - bol); + return 0; + } + } + end_of_object_name = (char *) bol + strcspn(bol, " \t\n"); saved = *end_of_object_name; *end_of_object_name = '\0'; @@ -1869,6 +2053,23 @@ static int count_commands(struct todo_list *todo_list) return count; } +static int get_item_line_offset(struct todo_list *todo_list, int index) +{ + return index < todo_list->nr ? + todo_list->items[index].offset_in_buf : todo_list->buf.len; +} + +static const char *get_item_line(struct todo_list *todo_list, int index) +{ + return todo_list->buf.buf + get_item_line_offset(todo_list, index); +} + +static int get_item_line_length(struct todo_list *todo_list, int index) +{ + return get_item_line_offset(todo_list, index + 1) + - get_item_line_offset(todo_list, index); +} + static ssize_t strbuf_read_file_or_whine(struct strbuf *sb, const char *path) { int fd; @@ -2052,6 +2253,22 @@ static int read_populate_opts(struct replay_opts *opts) read_strategy_opts(opts, &buf); strbuf_release(&buf); + if (read_oneliner(&opts->current_fixups, + rebase_path_current_fixups(), 1)) { + const char *p = opts->current_fixups.buf; + opts->current_fixup_count = 1; + while ((p = strchr(p, '\n'))) { + opts->current_fixup_count++; + p++; + } + } + + if (read_oneliner(&buf, rebase_path_squash_onto(), 0)) { + if (get_oid_hex(buf.buf, &opts->squash_onto) < 0) + return error(_("unusable squash-onto")); + opts->have_squash_onto = 1; + } + return 0; } @@ -2125,9 +2342,9 @@ static int save_head(const char *head) written = write_in_full(fd, buf.buf, buf.len); strbuf_release(&buf); if (written < 0) { + error_errno(_("could not write to '%s'"), git_path_head_file()); rollback_lock_file(&head_lock); - return error_errno(_("could not write to '%s'"), - git_path_head_file()); + return -1; } if (commit_lock_file(&head_lock) < 0) return error(_("failed to finalize '%s'"), git_path_head_file()); @@ -2248,29 +2465,27 @@ static int save_todo(struct todo_list *todo_list, struct replay_opts *opts) fd = hold_lock_file_for_update(&todo_lock, todo_path, 0); if (fd < 0) return error_errno(_("could not lock '%s'"), todo_path); - offset = next < todo_list->nr ? - todo_list->items[next].offset_in_buf : todo_list->buf.len; + offset = get_item_line_offset(todo_list, next); if (write_in_full(fd, todo_list->buf.buf + offset, todo_list->buf.len - offset) < 0) return error_errno(_("could not write to '%s'"), todo_path); if (commit_lock_file(&todo_lock) < 0) return error(_("failed to finalize '%s'"), todo_path); - if (is_rebase_i(opts)) { - const char *done_path = rebase_path_done(); - int fd = open(done_path, O_CREAT | O_WRONLY | O_APPEND, 0666); - int prev_offset = !next ? 0 : - todo_list->items[next - 1].offset_in_buf; + if (is_rebase_i(opts) && next > 0) { + const char *done = rebase_path_done(); + int fd = open(done, O_CREAT | O_WRONLY | O_APPEND, 0666); + int ret = 0; - if (fd >= 0 && offset > prev_offset && - write_in_full(fd, todo_list->buf.buf + prev_offset, - offset - prev_offset) < 0) { - close(fd); - return error_errno(_("could not write to '%s'"), - done_path); - } - if (fd >= 0) - close(fd); + if (fd < 0) + return 0; + if (write_in_full(fd, get_item_line(todo_list, next - 1), + get_item_line_length(todo_list, next - 1)) + < 0) + ret = error_errno(_("could not write to '%s'"), done); + if (close(fd) < 0) + ret = error_errno(_("failed to finalize '%s'"), done); + return ret; } return 0; } @@ -2398,10 +2613,9 @@ static int error_with_patch(struct commit *commit, static int error_failed_squash(struct commit *commit, struct replay_opts *opts, int subject_len, const char *subject) { - if (rename(rebase_path_squash_msg(), rebase_path_message())) - return error(_("could not rename '%s' to '%s'"), + if (copy_file(rebase_path_message(), rebase_path_squash_msg(), 0666)) + return error(_("could not copy '%s' to '%s'"), rebase_path_squash_msg(), rebase_path_message()); - unlink(rebase_path_fixup_msg()); unlink(git_path_merge_msg()); if (copy_file(git_path_merge_msg(), rebase_path_message(), 0666)) return error(_("could not copy '%s' to '%s'"), @@ -2454,6 +2668,377 @@ static int do_exec(const char *command_line) return status; } +static int safe_append(const char *filename, const char *fmt, ...) +{ + va_list ap; + struct lock_file lock = LOCK_INIT; + int fd = hold_lock_file_for_update(&lock, filename, + LOCK_REPORT_ON_ERROR); + struct strbuf buf = STRBUF_INIT; + + if (fd < 0) + return -1; + + if (strbuf_read_file(&buf, filename, 0) < 0 && errno != ENOENT) { + error_errno(_("could not read '%s'"), filename); + rollback_lock_file(&lock); + return -1; + } + strbuf_complete(&buf, '\n'); + va_start(ap, fmt); + strbuf_vaddf(&buf, fmt, ap); + va_end(ap); + + if (write_in_full(fd, buf.buf, buf.len) < 0) { + error_errno(_("could not write to '%s'"), filename); + strbuf_release(&buf); + rollback_lock_file(&lock); + return -1; + } + if (commit_lock_file(&lock) < 0) { + strbuf_release(&buf); + rollback_lock_file(&lock); + return error(_("failed to finalize '%s'"), filename); + } + + strbuf_release(&buf); + return 0; +} + +static int do_label(const char *name, int len) +{ + struct ref_store *refs = get_main_ref_store(the_repository); + struct ref_transaction *transaction; + struct strbuf ref_name = STRBUF_INIT, err = STRBUF_INIT; + struct strbuf msg = STRBUF_INIT; + int ret = 0; + struct object_id head_oid; + + if (len == 1 && *name == '#') + return error("Illegal label name: '%.*s'", len, name); + + strbuf_addf(&ref_name, "refs/rewritten/%.*s", len, name); + strbuf_addf(&msg, "rebase -i (label) '%.*s'", len, name); + + transaction = ref_store_transaction_begin(refs, &err); + if (!transaction) { + error("%s", err.buf); + ret = -1; + } else if (get_oid("HEAD", &head_oid)) { + error(_("could not read HEAD")); + ret = -1; + } else if (ref_transaction_update(transaction, ref_name.buf, &head_oid, + NULL, 0, msg.buf, &err) < 0 || + ref_transaction_commit(transaction, &err)) { + error("%s", err.buf); + ret = -1; + } + ref_transaction_free(transaction); + strbuf_release(&err); + strbuf_release(&msg); + + if (!ret) + ret = safe_append(rebase_path_refs_to_delete(), + "%s\n", ref_name.buf); + strbuf_release(&ref_name); + + return ret; +} + +static const char *reflog_message(struct replay_opts *opts, + const char *sub_action, const char *fmt, ...); + +static int do_reset(const char *name, int len, struct replay_opts *opts) +{ + struct strbuf ref_name = STRBUF_INIT; + struct object_id oid; + struct lock_file lock = LOCK_INIT; + struct tree_desc desc; + struct tree *tree; + struct unpack_trees_options unpack_tree_opts; + int ret = 0, i; + + if (hold_locked_index(&lock, LOCK_REPORT_ON_ERROR) < 0) + return -1; + + if (len == 10 && !strncmp("[new root]", name, len)) { + if (!opts->have_squash_onto) { + const char *hex; + if (commit_tree("", 0, the_hash_algo->empty_tree, + NULL, &opts->squash_onto, + NULL, NULL)) + return error(_("writing fake root commit")); + opts->have_squash_onto = 1; + hex = oid_to_hex(&opts->squash_onto); + if (write_message(hex, strlen(hex), + rebase_path_squash_onto(), 0)) + return error(_("writing squash-onto")); + } + oidcpy(&oid, &opts->squash_onto); + } else { + /* Determine the length of the label */ + for (i = 0; i < len; i++) + if (isspace(name[i])) + len = i; + + strbuf_addf(&ref_name, "refs/rewritten/%.*s", len, name); + if (get_oid(ref_name.buf, &oid) && + get_oid(ref_name.buf + strlen("refs/rewritten/"), &oid)) { + error(_("could not read '%s'"), ref_name.buf); + rollback_lock_file(&lock); + strbuf_release(&ref_name); + return -1; + } + } + + memset(&unpack_tree_opts, 0, sizeof(unpack_tree_opts)); + setup_unpack_trees_porcelain(&unpack_tree_opts, "reset"); + unpack_tree_opts.head_idx = 1; + unpack_tree_opts.src_index = &the_index; + unpack_tree_opts.dst_index = &the_index; + unpack_tree_opts.fn = oneway_merge; + unpack_tree_opts.merge = 1; + unpack_tree_opts.update = 1; + + if (read_cache_unmerged()) { + rollback_lock_file(&lock); + strbuf_release(&ref_name); + return error_resolve_conflict(_(action_name(opts))); + } + + if (!fill_tree_descriptor(&desc, &oid)) { + error(_("failed to find tree of %s"), oid_to_hex(&oid)); + rollback_lock_file(&lock); + free((void *)desc.buffer); + strbuf_release(&ref_name); + return -1; + } + + if (unpack_trees(1, &desc, &unpack_tree_opts)) { + rollback_lock_file(&lock); + free((void *)desc.buffer); + strbuf_release(&ref_name); + return -1; + } + + tree = parse_tree_indirect(&oid); + prime_cache_tree(&the_index, tree); + + if (write_locked_index(&the_index, &lock, COMMIT_LOCK) < 0) + ret = error(_("could not write index")); + free((void *)desc.buffer); + + if (!ret) + ret = update_ref(reflog_message(opts, "reset", "'%.*s'", + len, name), "HEAD", &oid, + NULL, 0, UPDATE_REFS_MSG_ON_ERR); + + strbuf_release(&ref_name); + return ret; +} + +static int do_merge(struct commit *commit, const char *arg, int arg_len, + int flags, struct replay_opts *opts) +{ + int run_commit_flags = (flags & TODO_EDIT_MERGE_MSG) ? + EDIT_MSG | VERIFY_MSG : 0; + struct strbuf ref_name = STRBUF_INIT; + struct commit *head_commit, *merge_commit, *i; + struct commit_list *bases, *j, *reversed = NULL; + struct merge_options o; + int merge_arg_len, oneline_offset, can_fast_forward, ret; + static struct lock_file lock; + const char *p; + + if (hold_locked_index(&lock, LOCK_REPORT_ON_ERROR) < 0) { + ret = -1; + goto leave_merge; + } + + head_commit = lookup_commit_reference_by_name("HEAD"); + if (!head_commit) { + ret = error(_("cannot merge without a current revision")); + goto leave_merge; + } + + oneline_offset = arg_len; + merge_arg_len = strcspn(arg, " \t\n"); + p = arg + merge_arg_len; + p += strspn(p, " \t\n"); + if (*p == '#' && (!p[1] || isspace(p[1]))) { + p += 1 + strspn(p + 1, " \t\n"); + oneline_offset = p - arg; + } else if (p - arg < arg_len) + BUG("octopus merges are not supported yet: '%s'", p); + + strbuf_addf(&ref_name, "refs/rewritten/%.*s", merge_arg_len, arg); + merge_commit = lookup_commit_reference_by_name(ref_name.buf); + if (!merge_commit) { + /* fall back to non-rewritten ref or commit */ + strbuf_splice(&ref_name, 0, strlen("refs/rewritten/"), "", 0); + merge_commit = lookup_commit_reference_by_name(ref_name.buf); + } + + if (!merge_commit) { + ret = error(_("could not resolve '%s'"), ref_name.buf); + goto leave_merge; + } + + if (opts->have_squash_onto && + !oidcmp(&head_commit->object.oid, &opts->squash_onto)) { + /* + * When the user tells us to "merge" something into a + * "[new root]", let's simply fast-forward to the merge head. + */ + rollback_lock_file(&lock); + ret = fast_forward_to(&merge_commit->object.oid, + &head_commit->object.oid, 0, opts); + goto leave_merge; + } + + if (commit) { + const char *message = get_commit_buffer(commit, NULL); + const char *body; + int len; + + if (!message) { + ret = error(_("could not get commit message of '%s'"), + oid_to_hex(&commit->object.oid)); + goto leave_merge; + } + write_author_script(message); + find_commit_subject(message, &body); + len = strlen(body); + ret = write_message(body, len, git_path_merge_msg(), 0); + unuse_commit_buffer(commit, message); + if (ret) { + error_errno(_("could not write '%s'"), + git_path_merge_msg()); + goto leave_merge; + } + } else { + struct strbuf buf = STRBUF_INIT; + int len; + + strbuf_addf(&buf, "author %s", git_author_info(0)); + write_author_script(buf.buf); + strbuf_reset(&buf); + + if (oneline_offset < arg_len) { + p = arg + oneline_offset; + len = arg_len - oneline_offset; + } else { + strbuf_addf(&buf, "Merge branch '%.*s'", + merge_arg_len, arg); + p = buf.buf; + len = buf.len; + } + + ret = write_message(p, len, git_path_merge_msg(), 0); + strbuf_release(&buf); + if (ret) { + error_errno(_("could not write '%s'"), + git_path_merge_msg()); + goto leave_merge; + } + } + + /* + * If HEAD is not identical to the first parent of the original merge + * commit, we cannot fast-forward. + */ + can_fast_forward = opts->allow_ff && commit && commit->parents && + !oidcmp(&commit->parents->item->object.oid, + &head_commit->object.oid); + + /* + * If the merge head is different from the original one, we cannot + * fast-forward. + */ + if (can_fast_forward) { + struct commit_list *second_parent = commit->parents->next; + + if (second_parent && !second_parent->next && + oidcmp(&merge_commit->object.oid, + &second_parent->item->object.oid)) + can_fast_forward = 0; + } + + if (can_fast_forward && commit->parents->next && + !commit->parents->next->next && + !oidcmp(&commit->parents->next->item->object.oid, + &merge_commit->object.oid)) { + rollback_lock_file(&lock); + ret = fast_forward_to(&commit->object.oid, + &head_commit->object.oid, 0, opts); + goto leave_merge; + } + + write_message(oid_to_hex(&merge_commit->object.oid), GIT_SHA1_HEXSZ, + git_path_merge_head(), 0); + write_message("no-ff", 5, git_path_merge_mode(), 0); + + bases = get_merge_bases(head_commit, merge_commit); + if (bases && !oidcmp(&merge_commit->object.oid, + &bases->item->object.oid)) { + ret = 0; + /* skip merging an ancestor of HEAD */ + goto leave_merge; + } + + for (j = bases; j; j = j->next) + commit_list_insert(j->item, &reversed); + free_commit_list(bases); + + read_cache(); + init_merge_options(&o); + o.branch1 = "HEAD"; + o.branch2 = ref_name.buf; + o.buffer_output = 2; + + ret = merge_recursive(&o, head_commit, merge_commit, reversed, &i); + if (ret <= 0) + fputs(o.obuf.buf, stdout); + strbuf_release(&o.obuf); + if (ret < 0) { + error(_("could not even attempt to merge '%.*s'"), + merge_arg_len, arg); + goto leave_merge; + } + /* + * The return value of merge_recursive() is 1 on clean, and 0 on + * unclean merge. + * + * Let's reverse that, so that do_merge() returns 0 upon success and + * 1 upon failed merge (keeping the return value -1 for the cases where + * we will want to reschedule the `merge` command). + */ + ret = !ret; + + if (active_cache_changed && + write_locked_index(&the_index, &lock, COMMIT_LOCK)) { + ret = error(_("merge: Unable to write new index file")); + goto leave_merge; + } + + rollback_lock_file(&lock); + if (ret) + rerere(opts->allow_rerere_auto); + else + /* + * In case of problems, we now want to return a positive + * value (a negative one would indicate that the `merge` + * command needs to be rescheduled). + */ + ret = !!run_git_commit(git_path_merge_msg(), opts, + run_commit_flags); + +leave_merge: + strbuf_release(&ref_name); + rollback_lock_file(&lock); + return ret; +} + static int is_final_fixup(struct todo_list *todo_list) { int i = todo_list->current; @@ -2544,9 +3129,20 @@ static const char *reflog_message(struct replay_opts *opts, return buf.buf; } +static const char rescheduled_advice[] = +N_("Could not execute the todo command\n" +"\n" +" %.*s" +"\n" +"It has been rescheduled; To edit the command before continuing, please\n" +"edit the todo list first:\n" +"\n" +" git rebase --edit-todo\n" +" git rebase --continue\n"); + static int pick_commits(struct todo_list *todo_list, struct replay_opts *opts) { - int res = 0; + int res = 0, reschedule = 0; setenv(GIT_REFLOG_ACTION, action_name(opts), 0); if (opts->allow_ff) @@ -2589,6 +3185,11 @@ static int pick_commits(struct todo_list *todo_list, struct replay_opts *opts) opts, is_final_fixup(todo_list)); if (is_rebase_i(opts) && res < 0) { /* Reschedule */ + advise(_(rescheduled_advice), + get_item_line_length(todo_list, + todo_list->current), + get_item_line(todo_list, + todo_list->current)); todo_list->current--; if (save_todo(todo_list, opts)) return -1; @@ -2612,7 +3213,7 @@ static int pick_commits(struct todo_list *todo_list, struct replay_opts *opts) intend_to_amend(); return error_failed_squash(item->commit, opts, item->arg_len, item->arg); - } else if (res && is_rebase_i(opts)) + } else if (res && is_rebase_i(opts) && item->commit) return res | error_with_patch(item->commit, item->arg, item->arg_len, opts, res, item->command == TODO_REWORD); @@ -2638,9 +3239,44 @@ static int pick_commits(struct todo_list *todo_list, struct replay_opts *opts) /* `current` will be incremented below */ todo_list->current = -1; } + } else if (item->command == TODO_LABEL) { + if ((res = do_label(item->arg, item->arg_len))) + reschedule = 1; + } else if (item->command == TODO_RESET) { + if ((res = do_reset(item->arg, item->arg_len, opts))) + reschedule = 1; + } else if (item->command == TODO_MERGE) { + if ((res = do_merge(item->commit, + item->arg, item->arg_len, + item->flags, opts)) < 0) + reschedule = 1; + else if (item->commit) + record_in_rewritten(&item->commit->object.oid, + peek_command(todo_list, 1)); + if (res > 0) + /* failed with merge conflicts */ + return error_with_patch(item->commit, + item->arg, + item->arg_len, opts, + res, 0); } else if (!is_noop(item->command)) return error(_("unknown command %d"), item->command); + if (reschedule) { + advise(_(rescheduled_advice), + get_item_line_length(todo_list, + todo_list->current), + get_item_line(todo_list, todo_list->current)); + todo_list->current--; + if (save_todo(todo_list, opts)) + return -1; + if (item->commit) + return error_with_patch(item->commit, + item->arg, + item->arg_len, opts, + res, 0); + } + todo_list->current++; if (res) return res; @@ -2767,19 +3403,16 @@ static int continue_single_pick(void) return run_command_v_opt(argv, RUN_GIT_CMD); } -static int commit_staged_changes(struct replay_opts *opts) +static int commit_staged_changes(struct replay_opts *opts, + struct todo_list *todo_list) { unsigned int flags = ALLOW_EMPTY | EDIT_MSG; + unsigned int final_fixup = 0, is_clean; if (has_unstaged_changes(1)) return error(_("cannot rebase: You have unstaged changes.")); - if (!has_uncommitted_changes(0)) { - const char *cherry_pick_head = git_path_cherry_pick_head(); - if (file_exists(cherry_pick_head) && unlink(cherry_pick_head)) - return error(_("could not remove CHERRY_PICK_HEAD")); - return 0; - } + is_clean = !has_uncommitted_changes(0); if (file_exists(rebase_path_amend())) { struct strbuf rev = STRBUF_INIT; @@ -2792,19 +3425,107 @@ static int commit_staged_changes(struct replay_opts *opts) if (get_oid_hex(rev.buf, &to_amend)) return error(_("invalid contents: '%s'"), rebase_path_amend()); - if (oidcmp(&head, &to_amend)) + if (!is_clean && oidcmp(&head, &to_amend)) return error(_("\nYou have uncommitted changes in your " "working tree. Please, commit them\n" "first and then run 'git rebase " "--continue' again.")); + /* + * When skipping a failed fixup/squash, we need to edit the + * commit message, the current fixup list and count, and if it + * was the last fixup/squash in the chain, we need to clean up + * the commit message and if there was a squash, let the user + * edit it. + */ + if (is_clean && !oidcmp(&head, &to_amend) && + opts->current_fixup_count > 0 && + file_exists(rebase_path_stopped_sha())) { + const char *p = opts->current_fixups.buf; + int len = opts->current_fixups.len; + + opts->current_fixup_count--; + if (!len) + BUG("Incorrect current_fixups:\n%s", p); + while (len && p[len - 1] != '\n') + len--; + strbuf_setlen(&opts->current_fixups, len); + if (write_message(p, len, rebase_path_current_fixups(), + 0) < 0) + return error(_("could not write file: '%s'"), + rebase_path_current_fixups()); + + /* + * If a fixup/squash in a fixup/squash chain failed, the + * commit message is already correct, no need to commit + * it again. + * + * Only if it is the final command in the fixup/squash + * chain, and only if the chain is longer than a single + * fixup/squash command (which was just skipped), do we + * actually need to re-commit with a cleaned up commit + * message. + */ + if (opts->current_fixup_count > 0 && + !is_fixup(peek_command(todo_list, 0))) { + final_fixup = 1; + /* + * If there was not a single "squash" in the + * chain, we only need to clean up the commit + * message, no need to bother the user with + * opening the commit message in the editor. + */ + if (!starts_with(p, "squash ") && + !strstr(p, "\nsquash ")) + flags = (flags & ~EDIT_MSG) | CLEANUP_MSG; + } else if (is_fixup(peek_command(todo_list, 0))) { + /* + * We need to update the squash message to skip + * the latest commit message. + */ + struct commit *commit; + const char *path = rebase_path_squash_msg(); + + if (parse_head(&commit) || + !(p = get_commit_buffer(commit, NULL)) || + write_message(p, strlen(p), path, 0)) { + unuse_commit_buffer(commit, p); + return error(_("could not write file: " + "'%s'"), path); + } + unuse_commit_buffer(commit, p); + } + } strbuf_release(&rev); flags |= AMEND_MSG; } - if (run_git_commit(rebase_path_message(), opts, flags)) + if (is_clean) { + const char *cherry_pick_head = git_path_cherry_pick_head(); + + if (file_exists(cherry_pick_head) && unlink(cherry_pick_head)) + return error(_("could not remove CHERRY_PICK_HEAD")); + if (!final_fixup) + return 0; + } + + if (run_git_commit(final_fixup ? NULL : rebase_path_message(), + opts, flags)) return error(_("could not commit staged changes.")); unlink(rebase_path_amend()); + if (final_fixup) { + unlink(rebase_path_fixup_msg()); + unlink(rebase_path_squash_msg()); + } + if (opts->current_fixup_count > 0) { + /* + * Whether final fixup or not, we just cleaned up the commit + * message... + */ + unlink(rebase_path_current_fixups()); + strbuf_reset(&opts->current_fixups); + opts->current_fixup_count = 0; + } return 0; } @@ -2816,14 +3537,16 @@ int sequencer_continue(struct replay_opts *opts) if (read_and_refresh_cache(opts)) return -1; + if (read_populate_opts(opts)) + return -1; if (is_rebase_i(opts)) { - if (commit_staged_changes(opts)) + if ((res = read_populate_todo(&todo_list, opts))) + goto release_todo_list; + if (commit_staged_changes(opts, &todo_list)) return -1; } else if (!file_exists(get_todo_path(opts))) return continue_single_pick(); - if (read_populate_opts(opts)) - return -1; - if ((res = read_populate_todo(&todo_list, opts))) + else if ((res = read_populate_todo(&todo_list, opts))) goto release_todo_list; if (!is_rebase_i(opts)) { @@ -2882,7 +3605,8 @@ int sequencer_pick_revisions(struct replay_opts *opts) if (!get_oid(name, &oid)) { if (!lookup_commit_reference_gently(&oid, 1)) { - enum object_type type = oid_object_info(&oid, + enum object_type type = oid_object_info(the_repository, + &oid, NULL); return error(_("%s: can't cherry-pick a %s"), name, type_name(type)); @@ -2993,6 +3717,348 @@ void append_signoff(struct strbuf *msgbuf, int ignore_footer, unsigned flag) strbuf_release(&sob); } +struct labels_entry { + struct hashmap_entry entry; + char label[FLEX_ARRAY]; +}; + +static int labels_cmp(const void *fndata, const struct labels_entry *a, + const struct labels_entry *b, const void *key) +{ + return key ? strcmp(a->label, key) : strcmp(a->label, b->label); +} + +struct string_entry { + struct oidmap_entry entry; + char string[FLEX_ARRAY]; +}; + +struct label_state { + struct oidmap commit2label; + struct hashmap labels; + struct strbuf buf; +}; + +static const char *label_oid(struct object_id *oid, const char *label, + struct label_state *state) +{ + struct labels_entry *labels_entry; + struct string_entry *string_entry; + struct object_id dummy; + size_t len; + int i; + + string_entry = oidmap_get(&state->commit2label, oid); + if (string_entry) + return string_entry->string; + + /* + * For "uninteresting" commits, i.e. commits that are not to be + * rebased, and which can therefore not be labeled, we use a unique + * abbreviation of the commit name. This is slightly more complicated + * than calling find_unique_abbrev() because we also need to make + * sure that the abbreviation does not conflict with any other + * label. + * + * We disallow "interesting" commits to be labeled by a string that + * is a valid full-length hash, to ensure that we always can find an + * abbreviation for any uninteresting commit's names that does not + * clash with any other label. + */ + if (!label) { + char *p; + + strbuf_reset(&state->buf); + strbuf_grow(&state->buf, GIT_SHA1_HEXSZ); + label = p = state->buf.buf; + + find_unique_abbrev_r(p, oid, default_abbrev); + + /* + * We may need to extend the abbreviated hash so that there is + * no conflicting label. + */ + if (hashmap_get_from_hash(&state->labels, strihash(p), p)) { + size_t i = strlen(p) + 1; + + oid_to_hex_r(p, oid); + for (; i < GIT_SHA1_HEXSZ; i++) { + char save = p[i]; + p[i] = '\0'; + if (!hashmap_get_from_hash(&state->labels, + strihash(p), p)) + break; + p[i] = save; + } + } + } else if (((len = strlen(label)) == GIT_SHA1_RAWSZ && + !get_oid_hex(label, &dummy)) || + (len == 1 && *label == '#') || + hashmap_get_from_hash(&state->labels, + strihash(label), label)) { + /* + * If the label already exists, or if the label is a valid full + * OID, or the label is a '#' (which we use as a separator + * between merge heads and oneline), we append a dash and a + * number to make it unique. + */ + struct strbuf *buf = &state->buf; + + strbuf_reset(buf); + strbuf_add(buf, label, len); + + for (i = 2; ; i++) { + strbuf_setlen(buf, len); + strbuf_addf(buf, "-%d", i); + if (!hashmap_get_from_hash(&state->labels, + strihash(buf->buf), + buf->buf)) + break; + } + + label = buf->buf; + } + + FLEX_ALLOC_STR(labels_entry, label, label); + hashmap_entry_init(labels_entry, strihash(label)); + hashmap_add(&state->labels, labels_entry); + + FLEX_ALLOC_STR(string_entry, string, label); + oidcpy(&string_entry->entry.oid, oid); + oidmap_put(&state->commit2label, string_entry); + + return string_entry->string; +} + +static int make_script_with_merges(struct pretty_print_context *pp, + struct rev_info *revs, FILE *out, + unsigned flags) +{ + int keep_empty = flags & TODO_LIST_KEEP_EMPTY; + int rebase_cousins = flags & TODO_LIST_REBASE_COUSINS; + struct strbuf buf = STRBUF_INIT, oneline = STRBUF_INIT; + struct strbuf label = STRBUF_INIT; + struct commit_list *commits = NULL, **tail = &commits, *iter; + struct commit_list *tips = NULL, **tips_tail = &tips; + struct commit *commit; + struct oidmap commit2todo = OIDMAP_INIT; + struct string_entry *entry; + struct oidset interesting = OIDSET_INIT, child_seen = OIDSET_INIT, + shown = OIDSET_INIT; + struct label_state state = { OIDMAP_INIT, { NULL }, STRBUF_INIT }; + + int abbr = flags & TODO_LIST_ABBREVIATE_CMDS; + const char *cmd_pick = abbr ? "p" : "pick", + *cmd_label = abbr ? "l" : "label", + *cmd_reset = abbr ? "t" : "reset", + *cmd_merge = abbr ? "m" : "merge"; + + oidmap_init(&commit2todo, 0); + oidmap_init(&state.commit2label, 0); + hashmap_init(&state.labels, (hashmap_cmp_fn) labels_cmp, NULL, 0); + strbuf_init(&state.buf, 32); + + if (revs->cmdline.nr && (revs->cmdline.rev[0].flags & BOTTOM)) { + struct object_id *oid = &revs->cmdline.rev[0].item->oid; + FLEX_ALLOC_STR(entry, string, "onto"); + oidcpy(&entry->entry.oid, oid); + oidmap_put(&state.commit2label, entry); + } + + /* + * First phase: + * - get onelines for all commits + * - gather all branch tips (i.e. 2nd or later parents of merges) + * - label all branch tips + */ + while ((commit = get_revision(revs))) { + struct commit_list *to_merge; + int is_octopus; + const char *p1, *p2; + struct object_id *oid; + int is_empty; + + tail = &commit_list_insert(commit, tail)->next; + oidset_insert(&interesting, &commit->object.oid); + + is_empty = is_original_commit_empty(commit); + if (!is_empty && (commit->object.flags & PATCHSAME)) + continue; + + strbuf_reset(&oneline); + pretty_print_commit(pp, commit, &oneline); + + to_merge = commit->parents ? commit->parents->next : NULL; + if (!to_merge) { + /* non-merge commit: easy case */ + strbuf_reset(&buf); + if (!keep_empty && is_empty) + strbuf_addf(&buf, "%c ", comment_line_char); + strbuf_addf(&buf, "%s %s %s", cmd_pick, + oid_to_hex(&commit->object.oid), + oneline.buf); + + FLEX_ALLOC_STR(entry, string, buf.buf); + oidcpy(&entry->entry.oid, &commit->object.oid); + oidmap_put(&commit2todo, entry); + + continue; + } + + is_octopus = to_merge && to_merge->next; + + if (is_octopus) + BUG("Octopus merges not yet supported"); + + /* Create a label */ + strbuf_reset(&label); + if (skip_prefix(oneline.buf, "Merge ", &p1) && + (p1 = strchr(p1, '\'')) && + (p2 = strchr(++p1, '\''))) + strbuf_add(&label, p1, p2 - p1); + else if (skip_prefix(oneline.buf, "Merge pull request ", + &p1) && + (p1 = strstr(p1, " from "))) + strbuf_addstr(&label, p1 + strlen(" from ")); + else + strbuf_addbuf(&label, &oneline); + + for (p1 = label.buf; *p1; p1++) + if (isspace(*p1)) + *(char *)p1 = '-'; + + strbuf_reset(&buf); + strbuf_addf(&buf, "%s -C %s", + cmd_merge, oid_to_hex(&commit->object.oid)); + + /* label the tip of merged branch */ + oid = &to_merge->item->object.oid; + strbuf_addch(&buf, ' '); + + if (!oidset_contains(&interesting, oid)) + strbuf_addstr(&buf, label_oid(oid, NULL, &state)); + else { + tips_tail = &commit_list_insert(to_merge->item, + tips_tail)->next; + + strbuf_addstr(&buf, label_oid(oid, label.buf, &state)); + } + strbuf_addf(&buf, " # %s", oneline.buf); + + FLEX_ALLOC_STR(entry, string, buf.buf); + oidcpy(&entry->entry.oid, &commit->object.oid); + oidmap_put(&commit2todo, entry); + } + + /* + * Second phase: + * - label branch points + * - add HEAD to the branch tips + */ + for (iter = commits; iter; iter = iter->next) { + struct commit_list *parent = iter->item->parents; + for (; parent; parent = parent->next) { + struct object_id *oid = &parent->item->object.oid; + if (!oidset_contains(&interesting, oid)) + continue; + if (!oidset_contains(&child_seen, oid)) + oidset_insert(&child_seen, oid); + else + label_oid(oid, "branch-point", &state); + } + + /* Add HEAD as implict "tip of branch" */ + if (!iter->next) + tips_tail = &commit_list_insert(iter->item, + tips_tail)->next; + } + + /* + * Third phase: output the todo list. This is a bit tricky, as we + * want to avoid jumping back and forth between revisions. To + * accomplish that goal, we walk backwards from the branch tips, + * gathering commits not yet shown, reversing the list on the fly, + * then outputting that list (labeling revisions as needed). + */ + fprintf(out, "%s onto\n", cmd_label); + for (iter = tips; iter; iter = iter->next) { + struct commit_list *list = NULL, *iter2; + + commit = iter->item; + if (oidset_contains(&shown, &commit->object.oid)) + continue; + entry = oidmap_get(&state.commit2label, &commit->object.oid); + + if (entry) + fprintf(out, "\n# Branch %s\n", entry->string); + else + fprintf(out, "\n"); + + while (oidset_contains(&interesting, &commit->object.oid) && + !oidset_contains(&shown, &commit->object.oid)) { + commit_list_insert(commit, &list); + if (!commit->parents) { + commit = NULL; + break; + } + commit = commit->parents->item; + } + + if (!commit) + fprintf(out, "%s %s\n", cmd_reset, + rebase_cousins ? "onto" : "[new root]"); + else { + const char *to = NULL; + + entry = oidmap_get(&state.commit2label, + &commit->object.oid); + if (entry) + to = entry->string; + else if (!rebase_cousins) + to = label_oid(&commit->object.oid, NULL, + &state); + + if (!to || !strcmp(to, "onto")) + fprintf(out, "%s onto\n", cmd_reset); + else { + strbuf_reset(&oneline); + pretty_print_commit(pp, commit, &oneline); + fprintf(out, "%s %s # %s\n", + cmd_reset, to, oneline.buf); + } + } + + for (iter2 = list; iter2; iter2 = iter2->next) { + struct object_id *oid = &iter2->item->object.oid; + entry = oidmap_get(&commit2todo, oid); + /* only show if not already upstream */ + if (entry) + fprintf(out, "%s\n", entry->string); + entry = oidmap_get(&state.commit2label, oid); + if (entry) + fprintf(out, "%s %s\n", + cmd_label, entry->string); + oidset_insert(&shown, oid); + } + + free_commit_list(list); + } + + free_commit_list(commits); + free_commit_list(tips); + + strbuf_release(&label); + strbuf_release(&oneline); + strbuf_release(&buf); + + oidmap_free(&commit2todo, 1); + oidmap_free(&state.commit2label, 1); + hashmap_free(&state.labels, 1); + strbuf_release(&state.buf); + + return 0; +} + int sequencer_make_script(FILE *out, int argc, const char **argv, unsigned flags) { @@ -3003,10 +4069,12 @@ int sequencer_make_script(FILE *out, int argc, const char **argv, struct commit *commit; int keep_empty = flags & TODO_LIST_KEEP_EMPTY; const char *insn = flags & TODO_LIST_ABBREVIATE_CMDS ? "p" : "pick"; + int rebase_merges = flags & TODO_LIST_REBASE_MERGES; init_revisions(&revs, NULL); revs.verbose_header = 1; - revs.max_parents = 1; + if (!rebase_merges) + revs.max_parents = 1; revs.cherry_mark = 1; revs.limited = 1; revs.reverse = 1; @@ -3031,6 +4099,9 @@ int sequencer_make_script(FILE *out, int argc, const char **argv, if (prepare_revision_walk(&revs) < 0) return error(_("make_script: error preparing revisions")); + if (rebase_merges) + return make_script_with_merges(&pp, &revs, out, flags); + while ((commit = get_revision(&revs))) { int is_empty = is_original_commit_empty(commit); @@ -3124,8 +4195,16 @@ int transform_todos(unsigned flags) short_commit_name(item->commit) : oid_to_hex(&item->commit->object.oid); + if (item->command == TODO_MERGE) { + if (item->flags & TODO_EDIT_MERGE_MSG) + strbuf_addstr(&buf, " -c"); + else + strbuf_addstr(&buf, " -C"); + } + strbuf_addf(&buf, " %s", oid); } + /* add all the rest */ if (!item->arg_len) strbuf_addch(&buf, '\n'); @@ -3305,8 +4384,7 @@ int skip_unnecessary_picks(void) oid = &item->commit->object.oid; } if (i > 0) { - int offset = i < todo_list.nr ? - todo_list.items[i].offset_in_buf : todo_list.buf.len; + int offset = get_item_line_offset(&todo_list, i); const char *done_path = rebase_path_done(); fd = open(done_path, O_CREAT | O_WRONLY | O_APPEND, 0666); @@ -3401,7 +4479,7 @@ int rearrange_squash(void) struct subject2item_entry *entry; next[i] = tail[i] = -1; - if (item->command >= TODO_EXEC) { + if (!item->commit || item->command == TODO_DROP) { subjects[i] = NULL; continue; } @@ -3486,12 +4564,10 @@ int rearrange_squash(void) continue; while (cur >= 0) { - int offset = todo_list.items[cur].offset_in_buf; - int end_offset = cur + 1 < todo_list.nr ? - todo_list.items[cur + 1].offset_in_buf : - todo_list.buf.len; - char *bol = todo_list.buf.buf + offset; - char *eol = todo_list.buf.buf + end_offset; + const char *bol = + get_item_line(&todo_list, cur); + const char *eol = + get_item_line(&todo_list, cur + 1); /* replace 'pick', by 'fixup' or 'squash' */ command = todo_list.items[cur].command; diff --git a/sequencer.h b/sequencer.h index e45b178dfc..c5787c6b56 100644 --- a/sequencer.h +++ b/sequencer.h @@ -44,10 +44,18 @@ struct replay_opts { char **xopts; size_t xopts_nr, xopts_alloc; + /* Used by fixup/squash */ + struct strbuf current_fixups; + int current_fixup_count; + + /* placeholder commit for -i --root */ + struct object_id squash_onto; + int have_squash_onto; + /* Only used by REPLAY_NONE */ struct rev_info *revs; }; -#define REPLAY_OPTS_INIT { -1 } +#define REPLAY_OPTS_INIT { .action = -1, .current_fixups = STRBUF_INIT } /* Call this to setup defaults before parsing command line options */ void sequencer_init_config(struct replay_opts *opts); @@ -59,6 +67,13 @@ int sequencer_remove_state(struct replay_opts *opts); #define TODO_LIST_KEEP_EMPTY (1U << 0) #define TODO_LIST_SHORTEN_IDS (1U << 1) #define TODO_LIST_ABBREVIATE_CMDS (1U << 2) +#define TODO_LIST_REBASE_MERGES (1U << 3) +/* + * When rebasing merges, commits that do have the base commit as ancestor + * ("cousins") are *not* rebased onto the new base by default. If those + * commits should be rebased onto the new base, this flag needs to be passed. + */ +#define TODO_LIST_REBASE_COUSINS (1U << 4) int sequencer_make_script(FILE *out, int argc, const char **argv, unsigned flags); diff --git a/serve.c b/serve.c new file mode 100644 index 0000000000..bda085f09c --- /dev/null +++ b/serve.c @@ -0,0 +1,258 @@ +#include "cache.h" +#include "repository.h" +#include "config.h" +#include "pkt-line.h" +#include "version.h" +#include "argv-array.h" +#include "ls-refs.h" +#include "serve.h" +#include "upload-pack.h" + +static int always_advertise(struct repository *r, + struct strbuf *value) +{ + return 1; +} + +static int agent_advertise(struct repository *r, + struct strbuf *value) +{ + if (value) + strbuf_addstr(value, git_user_agent_sanitized()); + return 1; +} + +struct protocol_capability { + /* + * The name of the capability. The server uses this name when + * advertising this capability, and the client uses this name to + * specify this capability. + */ + const char *name; + + /* + * Function queried to see if a capability should be advertised. + * Optionally a value can be specified by adding it to 'value'. + * If a value is added to 'value', the server will advertise this + * capability as "<name>=<value>" instead of "<name>". + */ + int (*advertise)(struct repository *r, struct strbuf *value); + + /* + * Function called when a client requests the capability as a command. + * The function will be provided the capabilities requested via 'keys' + * as well as a struct packet_reader 'request' which the command should + * use to read the command specific part of the request. Every command + * MUST read until a flush packet is seen before sending a response. + * + * This field should be NULL for capabilities which are not commands. + */ + int (*command)(struct repository *r, + struct argv_array *keys, + struct packet_reader *request); +}; + +static struct protocol_capability capabilities[] = { + { "agent", agent_advertise, NULL }, + { "ls-refs", always_advertise, ls_refs }, + { "fetch", upload_pack_advertise, upload_pack_v2 }, + { "server-option", always_advertise, NULL }, +}; + +static void advertise_capabilities(void) +{ + struct strbuf capability = STRBUF_INIT; + struct strbuf value = STRBUF_INIT; + int i; + + for (i = 0; i < ARRAY_SIZE(capabilities); i++) { + struct protocol_capability *c = &capabilities[i]; + + if (c->advertise(the_repository, &value)) { + strbuf_addstr(&capability, c->name); + + if (value.len) { + strbuf_addch(&capability, '='); + strbuf_addbuf(&capability, &value); + } + + strbuf_addch(&capability, '\n'); + packet_write(1, capability.buf, capability.len); + } + + strbuf_reset(&capability); + strbuf_reset(&value); + } + + packet_flush(1); + strbuf_release(&capability); + strbuf_release(&value); +} + +static struct protocol_capability *get_capability(const char *key) +{ + int i; + + if (!key) + return NULL; + + for (i = 0; i < ARRAY_SIZE(capabilities); i++) { + struct protocol_capability *c = &capabilities[i]; + const char *out; + if (skip_prefix(key, c->name, &out) && (!*out || *out == '=')) + return c; + } + + return NULL; +} + +static int is_valid_capability(const char *key) +{ + const struct protocol_capability *c = get_capability(key); + + return c && c->advertise(the_repository, NULL); +} + +static int is_command(const char *key, struct protocol_capability **command) +{ + const char *out; + + if (skip_prefix(key, "command=", &out)) { + struct protocol_capability *cmd = get_capability(out); + + if (*command) + die("command '%s' requested after already requesting command '%s'", + out, (*command)->name); + if (!cmd || !cmd->advertise(the_repository, NULL) || !cmd->command) + die("invalid command '%s'", out); + + *command = cmd; + return 1; + } + + return 0; +} + +int has_capability(const struct argv_array *keys, const char *capability, + const char **value) +{ + int i; + for (i = 0; i < keys->argc; i++) { + const char *out; + if (skip_prefix(keys->argv[i], capability, &out) && + (!*out || *out == '=')) { + if (value) { + if (*out == '=') + out++; + *value = out; + } + return 1; + } + } + + return 0; +} + +enum request_state { + PROCESS_REQUEST_KEYS, + PROCESS_REQUEST_DONE, +}; + +static int process_request(void) +{ + enum request_state state = PROCESS_REQUEST_KEYS; + struct packet_reader reader; + struct argv_array keys = ARGV_ARRAY_INIT; + struct protocol_capability *command = NULL; + + packet_reader_init(&reader, 0, NULL, 0, + PACKET_READ_CHOMP_NEWLINE | + PACKET_READ_GENTLE_ON_EOF); + + /* + * Check to see if the client closed their end before sending another + * request. If so we can terminate the connection. + */ + if (packet_reader_peek(&reader) == PACKET_READ_EOF) + return 1; + reader.options = PACKET_READ_CHOMP_NEWLINE; + + while (state != PROCESS_REQUEST_DONE) { + switch (packet_reader_peek(&reader)) { + case PACKET_READ_EOF: + BUG("Should have already died when seeing EOF"); + case PACKET_READ_NORMAL: + /* collect request; a sequence of keys and values */ + if (is_command(reader.line, &command) || + is_valid_capability(reader.line)) + argv_array_push(&keys, reader.line); + else + die("unknown capability '%s'", reader.line); + + /* Consume the peeked line */ + packet_reader_read(&reader); + break; + case PACKET_READ_FLUSH: + /* + * If no command and no keys were given then the client + * wanted to terminate the connection. + */ + if (!keys.argc) + return 1; + + /* + * The flush packet isn't consume here like it is in + * the other parts of this switch statement. This is + * so that the command can read the flush packet and + * see the end of the request in the same way it would + * if command specific arguments were provided after a + * delim packet. + */ + state = PROCESS_REQUEST_DONE; + break; + case PACKET_READ_DELIM: + /* Consume the peeked line */ + packet_reader_read(&reader); + + state = PROCESS_REQUEST_DONE; + break; + } + } + + if (!command) + die("no command requested"); + + command->command(the_repository, &keys, &reader); + + argv_array_clear(&keys); + return 0; +} + +/* Main serve loop for protocol version 2 */ +void serve(struct serve_options *options) +{ + if (options->advertise_capabilities || !options->stateless_rpc) { + /* serve by default supports v2 */ + packet_write_fmt(1, "version 2\n"); + + advertise_capabilities(); + /* + * If only the list of capabilities was requested exit + * immediately after advertising capabilities + */ + if (options->advertise_capabilities) + return; + } + + /* + * If stateless-rpc was requested then exit after + * a single request/response exchange + */ + if (options->stateless_rpc) { + process_request(); + } else { + for (;;) + if (process_request()) + break; + } +} diff --git a/serve.h b/serve.h new file mode 100644 index 0000000000..fe65ba9f46 --- /dev/null +++ b/serve.h @@ -0,0 +1,15 @@ +#ifndef SERVE_H +#define SERVE_H + +struct argv_array; +extern int has_capability(const struct argv_array *keys, const char *capability, + const char **value); + +struct serve_options { + unsigned advertise_capabilities; + unsigned stateless_rpc; +}; +#define SERVE_OPTIONS_INIT { 0 } +extern void serve(struct serve_options *options); + +#endif /* SERVE_H */ diff --git a/sha1-file.c b/sha1-file.c index 77ccaab928..e47098eff2 100644 --- a/sha1-file.c +++ b/sha1-file.c @@ -23,6 +23,7 @@ #include "sha1-lookup.h" #include "bulk-checkin.h" #include "repository.h" +#include "replace-object.h" #include "streaming.h" #include "dir.h" #include "list.h" @@ -141,7 +142,7 @@ static int get_conv_flags(unsigned flags) if (flags & HASH_RENORMALIZE) return CONV_EOL_RENORMALIZE; else if (flags & HASH_WRITE_OBJECT) - return global_conv_flags_eol; + return global_conv_flags_eol | CONV_WRITE_OBJECT; else return 0; } @@ -1230,7 +1231,8 @@ static int sha1_loose_object_info(struct repository *r, int fetch_if_missing = 1; -int oid_object_info_extended(const struct object_id *oid, struct object_info *oi, unsigned flags) +int oid_object_info_extended(struct repository *r, const struct object_id *oid, + struct object_info *oi, unsigned flags) { static struct object_info blank_oi = OBJECT_INFO_INIT; struct pack_entry e; @@ -1239,7 +1241,7 @@ int oid_object_info_extended(const struct object_id *oid, struct object_info *oi int already_retried = 0; if (flags & OBJECT_INFO_LOOKUP_REPLACE) - real = lookup_replace_object(oid); + real = lookup_replace_object(r, oid); if (is_null_oid(real)) return -1; @@ -1268,29 +1270,31 @@ int oid_object_info_extended(const struct object_id *oid, struct object_info *oi } while (1) { - if (find_pack_entry(the_repository, real->hash, &e)) + if (find_pack_entry(r, real->hash, &e)) break; if (flags & OBJECT_INFO_IGNORE_LOOSE) return -1; /* Most likely it's a loose object. */ - if (!sha1_loose_object_info(the_repository, real->hash, oi, flags)) + if (!sha1_loose_object_info(r, real->hash, oi, flags)) return 0; /* Not a loose object; someone else may have just packed it. */ if (!(flags & OBJECT_INFO_QUICK)) { - reprepare_packed_git(the_repository); - if (find_pack_entry(the_repository, real->hash, &e)) + reprepare_packed_git(r); + if (find_pack_entry(r, real->hash, &e)) break; } /* Check if it is a missing object */ if (fetch_if_missing && repository_format_partial_clone && - !already_retried) { + !already_retried && r == the_repository) { /* - * TODO Investigate haveing fetch_object() return + * TODO Investigate having fetch_object() return * TODO error/success and stopping the music here. + * TODO Pass a repository struct through fetch_object, + * such that arbitrary repositories work. */ fetch_object(repository_format_partial_clone, real->hash); already_retried = 1; @@ -1306,10 +1310,10 @@ int oid_object_info_extended(const struct object_id *oid, struct object_info *oi * information below, so return early. */ return 0; - rtype = packed_object_info(e.p, e.offset, oi); + rtype = packed_object_info(r, e.p, e.offset, oi); if (rtype < 0) { mark_bad_packed_object(e.p, real->hash); - return oid_object_info_extended(real, oi, 0); + return oid_object_info_extended(r, real, oi, 0); } else if (oi->whence == OI_PACKED) { oi->u.packed.offset = e.offset; oi->u.packed.pack = e.p; @@ -1321,15 +1325,17 @@ int oid_object_info_extended(const struct object_id *oid, struct object_info *oi } /* returns enum object_type or negative */ -int oid_object_info(const struct object_id *oid, unsigned long *sizep) +int oid_object_info(struct repository *r, + const struct object_id *oid, + unsigned long *sizep) { enum object_type type; struct object_info oi = OBJECT_INFO_INIT; oi.typep = &type; oi.sizep = sizep; - if (oid_object_info_extended(oid, &oi, - OBJECT_INFO_LOOKUP_REPLACE) < 0) + if (oid_object_info_extended(r, oid, &oi, + OBJECT_INFO_LOOKUP_REPLACE) < 0) return -1; return type; } @@ -1346,7 +1352,7 @@ static void *read_object(const unsigned char *sha1, enum object_type *type, hashcpy(oid.hash, sha1); - if (oid_object_info_extended(&oid, &oi, 0) < 0) + if (oid_object_info_extended(the_repository, &oid, &oi, 0) < 0) return NULL; return content; } @@ -1383,8 +1389,8 @@ void *read_object_file_extended(const struct object_id *oid, const struct packed_git *p; const char *path; struct stat st; - const struct object_id *repl = lookup_replace ? lookup_replace_object(oid) - : oid; + const struct object_id *repl = lookup_replace ? + lookup_replace_object(the_repository, oid) : oid; errno = 0; data = read_object(repl->hash, type, size); @@ -1744,7 +1750,7 @@ int has_sha1_file_with_flags(const unsigned char *sha1, int flags) if (!startup_info->have_repository) return 0; hashcpy(oid.hash, sha1); - return oid_object_info_extended(&oid, NULL, + return oid_object_info_extended(the_repository, &oid, NULL, flags | OBJECT_INFO_SKIP_CACHED) >= 0; } @@ -1987,7 +1993,7 @@ int read_pack_header(int fd, struct pack_header *header) void assert_oid_type(const struct object_id *oid, enum object_type expect) { - enum object_type type = oid_object_info(oid, NULL); + enum object_type type = oid_object_info(the_repository, oid, NULL); if (type < 0) die("%s is not a valid object", oid_to_hex(oid)); if (type != expect) @@ -2226,7 +2232,7 @@ int read_loose_object(const char *path, goto out; } - if (*type == OBJ_BLOB) { + if (*type == OBJ_BLOB && *size > big_file_threshold) { if (check_stream_sha1(&stream, hdr, *size, path, expected_oid->hash) < 0) goto out; } else { diff --git a/sha1-name.c b/sha1-name.c index 60d04bf74e..60b8a935cc 100644 --- a/sha1-name.c +++ b/sha1-name.c @@ -223,7 +223,7 @@ static int finish_object_disambiguation(struct disambiguate_state *ds, static int disambiguate_commit_only(const struct object_id *oid, void *cb_data_unused) { - int kind = oid_object_info(oid, NULL); + int kind = oid_object_info(the_repository, oid, NULL); return kind == OBJ_COMMIT; } @@ -232,7 +232,7 @@ static int disambiguate_committish_only(const struct object_id *oid, void *cb_da struct object *obj; int kind; - kind = oid_object_info(oid, NULL); + kind = oid_object_info(the_repository, oid, NULL); if (kind == OBJ_COMMIT) return 1; if (kind != OBJ_TAG) @@ -247,7 +247,7 @@ static int disambiguate_committish_only(const struct object_id *oid, void *cb_da static int disambiguate_tree_only(const struct object_id *oid, void *cb_data_unused) { - int kind = oid_object_info(oid, NULL); + int kind = oid_object_info(the_repository, oid, NULL); return kind == OBJ_TREE; } @@ -256,7 +256,7 @@ static int disambiguate_treeish_only(const struct object_id *oid, void *cb_data_ struct object *obj; int kind; - kind = oid_object_info(oid, NULL); + kind = oid_object_info(the_repository, oid, NULL); if (kind == OBJ_TREE || kind == OBJ_COMMIT) return 1; if (kind != OBJ_TAG) @@ -271,7 +271,7 @@ static int disambiguate_treeish_only(const struct object_id *oid, void *cb_data_ static int disambiguate_blob_only(const struct object_id *oid, void *cb_data_unused) { - int kind = oid_object_info(oid, NULL); + int kind = oid_object_info(the_repository, oid, NULL); return kind == OBJ_BLOB; } @@ -350,7 +350,7 @@ static int show_ambiguous_object(const struct object_id *oid, void *data) if (ds->fn && !ds->fn(oid, ds->cb_data)) return 0; - type = oid_object_info(oid, NULL); + type = oid_object_info(the_repository, oid, NULL); if (type == OBJ_COMMIT) { struct commit *commit = lookup_commit(oid); if (commit) { @@ -864,7 +864,7 @@ struct object *peel_to_type(const char *name, int namelen, if (o->type == OBJ_TAG) o = ((struct tag*) o)->tagged; else if (o->type == OBJ_COMMIT) - o = &(((struct commit *) o)->tree->object); + o = &(get_commit_tree(((struct commit *)o))->object); else { if (name) error("%.*s: expected %s type, but the object " @@ -353,7 +353,7 @@ void advertise_shallow_grafts(int fd) */ void prune_shallow(int show_only) { - static struct lock_file shallow_lock; + struct lock_file shallow_lock = LOCK_INIT; struct strbuf sb = STRBUF_INIT; int fd; diff --git a/sideband.c b/sideband.c index 6d7f943e43..325bf0e974 100644 --- a/sideband.c +++ b/sideband.c @@ -13,7 +13,7 @@ * the remote died unexpectedly. A flush() concludes the stream. */ -#define PREFIX "remote: " +#define DISPLAY_PREFIX "remote: " #define ANSI_SUFFIX "\033[K" #define DUMB_SUFFIX " " @@ -49,7 +49,7 @@ int recv_sideband(const char *me, int in_stream, int out) switch (band) { case 3: strbuf_addf(&outbuf, "%s%s%s", outbuf.len ? "\n" : "", - PREFIX, buf + 1); + DISPLAY_PREFIX, buf + 1); retval = SIDEBAND_REMOTE_ERROR; break; case 2: @@ -67,7 +67,7 @@ int recv_sideband(const char *me, int in_stream, int out) int linelen = brk - b; if (!outbuf.len) - strbuf_addstr(&outbuf, PREFIX); + strbuf_addstr(&outbuf, DISPLAY_PREFIX); if (linelen > 0) { strbuf_addf(&outbuf, "%.*s%s%c", linelen, b, suffix, *brk); @@ -81,8 +81,8 @@ int recv_sideband(const char *me, int in_stream, int out) } if (*b) - strbuf_addf(&outbuf, "%s%s", - outbuf.len ? "" : PREFIX, b); + strbuf_addf(&outbuf, "%s%s", outbuf.len ? + "" : DISPLAY_PREFIX, b); break; case 1: write_or_die(out, buf + 1, len); @@ -1,5 +1,6 @@ #include "cache.h" #include "refs.h" +#include "string-list.h" #include "utf8.h" int starts_with(const char *str, const char *prefix) @@ -11,6 +12,15 @@ int starts_with(const char *str, const char *prefix) return 0; } +int istarts_with(const char *str, const char *prefix) +{ + for (; ; str++, prefix++) + if (!*prefix) + return 1; + else if (tolower(*str) != tolower(*prefix)) + return 0; +} + int skip_to_optional_arg_default(const char *str, const char *prefix, const char **arg, const char *def) { @@ -171,6 +181,21 @@ struct strbuf **strbuf_split_buf(const char *str, size_t slen, return ret; } +void strbuf_add_separated_string_list(struct strbuf *str, + const char *sep, + struct string_list *slist) +{ + struct string_list_item *item; + int sep_needed = 0; + + for_each_string_list_item(item, slist) { + if (sep_needed) + strbuf_addstr(str, sep); + strbuf_addstr(str, item->string); + sep_needed = 1; + } +} + void strbuf_list_free(struct strbuf **sbs) { struct strbuf **s = sbs; @@ -793,7 +818,18 @@ char *xstrdup_tolower(const char *string) result = xmallocz(len); for (i = 0; i < len; i++) result[i] = tolower(string[i]); - result[i] = '\0'; + return result; +} + +char *xstrdup_toupper(const char *string) +{ + char *result; + size_t len, i; + + len = strlen(string); + result = xmallocz(len); + for (i = 0; i < len; i++) + result[i] = toupper(string[i]); return result; } @@ -1,6 +1,8 @@ #ifndef STRBUF_H #define STRBUF_H +struct string_list; + /** * strbuf's are meant to be used with all the usual C string and memory * APIs. Given that the length of the buffer is known, it's often better to @@ -537,6 +539,20 @@ static inline struct strbuf **strbuf_split(const struct strbuf *sb, return strbuf_split_max(sb, terminator, 0); } +/* + * Adds all strings of a string list to the strbuf, separated by the given + * separator. For example, if sep is + * ', ' + * and slist contains + * ['element1', 'element2', ..., 'elementN'], + * then write: + * 'element1, element2, ..., elementN' + * to str. If only one element, just write "element1" to str. + */ +extern void strbuf_add_separated_string_list(struct strbuf *str, + const char *sep, + struct string_list *slist); + /** * Free a NULL-terminated list of strbufs (for example, the return * values of the strbuf_split*() functions). @@ -616,6 +632,7 @@ __attribute__((format (printf,2,3))) extern int fprintf_ln(FILE *fp, const char *fmt, ...); char *xstrdup_tolower(const char *); +char *xstrdup_toupper(const char *); /** * Create a newly allocated string using printf format. You can do this easily diff --git a/streaming.c b/streaming.c index 7d55ba64c7..d1e6b2dce6 100644 --- a/streaming.c +++ b/streaming.c @@ -5,6 +5,7 @@ #include "streaming.h" #include "repository.h" #include "object-store.h" +#include "replace-object.h" #include "packfile.h" enum input_source { @@ -116,7 +117,7 @@ static enum input_source istream_source(const struct object_id *oid, oi->typep = type; oi->sizep = &size; - status = oid_object_info_extended(oid, oi, 0); + status = oid_object_info_extended(the_repository, oid, oi, 0); if (status < 0) return stream_error; @@ -139,7 +140,7 @@ struct git_istream *open_istream(const struct object_id *oid, { struct git_istream *st; struct object_info oi = OBJECT_INFO_INIT; - const struct object_id *real = lookup_replace_object(oid); + const struct object_id *real = lookup_replace_object(the_repository, oid); enum input_source src = istream_source(real, type, &oi); if (src < 0) diff --git a/submodule-config.c b/submodule-config.c index 3f2075764f..90d29348d3 100644 --- a/submodule-config.c +++ b/submodule-config.c @@ -190,6 +190,31 @@ static struct submodule *cache_lookup_name(struct submodule_cache *cache, return NULL; } +int check_submodule_name(const char *name) +{ + /* Disallow empty names */ + if (!*name) + return -1; + + /* + * Look for '..' as a path component. Check both '/' and '\\' as + * separators rather than is_dir_sep(), because we want the name rules + * to be consistent across platforms. + */ + goto in_component; /* always start inside component */ + while (*name) { + char c = *name++; + if (c == '/' || c == '\\') { +in_component: + if (name[0] == '.' && name[1] == '.' && + (!name[2] || name[2] == '/' || name[2] == '\\')) + return -1; + } + } + + return 0; +} + static int name_and_item_from_var(const char *var, struct strbuf *name, struct strbuf *item) { @@ -201,6 +226,12 @@ static int name_and_item_from_var(const char *var, struct strbuf *name, return 0; strbuf_add(name, subsection, subsection_len); + if (check_submodule_name(name->buf) < 0) { + warning(_("ignoring suspicious submodule name: %s"), name->buf); + strbuf_release(name); + return 0; + } + strbuf_addstr(item, key); return 1; @@ -619,31 +650,24 @@ static void gitmodules_read_check(struct repository *repo) repo_read_gitmodules(repo); } -const struct submodule *submodule_from_name(const struct object_id *treeish_name, +const struct submodule *submodule_from_name(struct repository *r, + const struct object_id *treeish_name, const char *name) { - gitmodules_read_check(the_repository); - return config_from(the_repository->submodule_cache, treeish_name, name, lookup_name); + gitmodules_read_check(r); + return config_from(r->submodule_cache, treeish_name, name, lookup_name); } -const struct submodule *submodule_from_path(const struct object_id *treeish_name, +const struct submodule *submodule_from_path(struct repository *r, + const struct object_id *treeish_name, const char *path) { - gitmodules_read_check(the_repository); - return config_from(the_repository->submodule_cache, treeish_name, path, lookup_path); -} - -const struct submodule *submodule_from_cache(struct repository *repo, - const struct object_id *treeish_name, - const char *key) -{ - gitmodules_read_check(repo); - return config_from(repo->submodule_cache, treeish_name, - key, lookup_path); + gitmodules_read_check(r); + return config_from(r->submodule_cache, treeish_name, path, lookup_path); } -void submodule_free(void) +void submodule_free(struct repository *r) { - if (the_repository->submodule_cache) - submodule_cache_clear(the_repository->submodule_cache); + if (r->submodule_cache) + submodule_cache_clear(r->submodule_cache); } diff --git a/submodule-config.h b/submodule-config.h index a5503a5d17..21273f56a3 100644 --- a/submodule-config.h +++ b/submodule-config.h @@ -39,13 +39,19 @@ extern int parse_update_recurse_submodules_arg(const char *opt, const char *arg) extern int parse_push_recurse_submodules_arg(const char *opt, const char *arg); extern void repo_read_gitmodules(struct repository *repo); extern void gitmodules_config_oid(const struct object_id *commit_oid); -extern const struct submodule *submodule_from_name( - const struct object_id *commit_or_tree, const char *name); -extern const struct submodule *submodule_from_path( - const struct object_id *commit_or_tree, const char *path); -extern const struct submodule *submodule_from_cache(struct repository *repo, - const struct object_id *treeish_name, - const char *key); -extern void submodule_free(void); +const struct submodule *submodule_from_name(struct repository *r, + const struct object_id *commit_or_tree, + const char *name); +const struct submodule *submodule_from_path(struct repository *r, + const struct object_id *commit_or_tree, + const char *path); +void submodule_free(struct repository *r); + +/* + * Returns 0 if the name is syntactically acceptable as a submodule "name" + * (e.g., that may be found in the subsection of a .gitmodules file) and -1 + * otherwise. + */ +int check_submodule_name(const char *name); #endif /* SUBMODULE_CONFIG_H */ diff --git a/submodule.c b/submodule.c index c282fa8fe5..eb08cf0782 100644 --- a/submodule.c +++ b/submodule.c @@ -96,7 +96,7 @@ int update_path_in_gitmodules(const char *oldpath, const char *newpath) if (is_gitmodules_unmerged(&the_index)) die(_("Cannot change unmerged .gitmodules, resolve merge conflicts first")); - submodule = submodule_from_path(&null_oid, oldpath); + submodule = submodule_from_path(the_repository, &null_oid, oldpath); if (!submodule || !submodule->name) { warning(_("Could not find section in .gitmodules where path=%s"), oldpath); return -1; @@ -130,7 +130,7 @@ int remove_path_from_gitmodules(const char *path) if (is_gitmodules_unmerged(&the_index)) die(_("Cannot change unmerged .gitmodules, resolve merge conflicts first")); - submodule = submodule_from_path(&null_oid, path); + submodule = submodule_from_path(the_repository, &null_oid, path); if (!submodule || !submodule->name) { warning(_("Could not find section in .gitmodules where path=%s"), path); return -1; @@ -174,7 +174,8 @@ done: void set_diffopt_flags_from_submodule_config(struct diff_options *diffopt, const char *path) { - const struct submodule *submodule = submodule_from_path(&null_oid, path); + const struct submodule *submodule = submodule_from_path(the_repository, + &null_oid, path); if (submodule) { const char *ignore; char *key; @@ -230,7 +231,7 @@ int is_submodule_active(struct repository *repo, const char *path) const struct string_list *sl; const struct submodule *module; - module = submodule_from_cache(repo, &null_oid, path); + module = submodule_from_path(repo, &null_oid, path); /* early return if there isn't a path->module mapping */ if (!module) @@ -674,7 +675,7 @@ const struct submodule *submodule_from_ce(const struct cache_entry *ce) if (!should_update_submodules()) return NULL; - return submodule_from_path(&null_oid, ce->name); + return submodule_from_path(the_repository, &null_oid, ce->name); } static struct oid_array *submodule_commits(struct string_list *submodules, @@ -731,13 +732,14 @@ static void collect_changed_submodules_cb(struct diff_queue_struct *q, if (!S_ISGITLINK(p->two->mode)) continue; - submodule = submodule_from_path(commit_oid, p->two->path); + submodule = submodule_from_path(the_repository, + commit_oid, p->two->path); if (submodule) name = submodule->name; else { name = default_name_or_path(p->two->path); /* make sure name does not collide with existing one */ - submodule = submodule_from_name(commit_oid, name); + submodule = submodule_from_name(the_repository, commit_oid, name); if (submodule) { warning("Submodule in commit %s at path: " "'%s' collides with a submodule named " @@ -818,7 +820,7 @@ static int check_has_commit(const struct object_id *oid, void *data) { struct has_commit_data *cb = data; - enum object_type type = oid_object_info(oid, NULL); + enum object_type type = oid_object_info(the_repository, oid, NULL); switch (type) { case OBJ_COMMIT: @@ -945,7 +947,7 @@ int find_unpushed_submodules(struct oid_array *commits, const struct submodule *submodule; const char *path = NULL; - submodule = submodule_from_name(&null_oid, name->string); + submodule = submodule_from_name(the_repository, &null_oid, name->string); if (submodule) path = submodule->path; else @@ -1113,7 +1115,7 @@ static void calculate_changed_submodule_paths(void) const struct string_list_item *name; /* No need to check if there are no submodules configured */ - if (!submodule_from_path(NULL, NULL)) + if (!submodule_from_path(the_repository, NULL, NULL)) return; argv_array_push(&argv, "--"); /* argv[0] program name */ @@ -1134,7 +1136,7 @@ static void calculate_changed_submodule_paths(void) const struct submodule *submodule; const char *path = NULL; - submodule = submodule_from_name(&null_oid, name->string); + submodule = submodule_from_name(the_repository, &null_oid, name->string); if (submodule) path = submodule->path; else @@ -1162,7 +1164,7 @@ int submodule_touches_in_range(struct object_id *excl_oid, int ret; /* No need to check if there are no submodules configured */ - if (!submodule_from_path(NULL, NULL)) + if (!submodule_from_path(the_repository, NULL, NULL)) return 0; argv_array_push(&args, "--"); /* args[0] program name */ @@ -1234,7 +1236,7 @@ static int get_next_submodule(struct child_process *cp, if (!S_ISGITLINK(ce->ce_mode)) continue; - submodule = submodule_from_cache(spf->r, &null_oid, ce->name); + submodule = submodule_from_path(spf->r, &null_oid, ce->name); if (!submodule) { const char *name = default_name_or_path(ce->name); if (name) { @@ -1604,7 +1606,7 @@ int submodule_move_head(const char *path, if (old_head && !is_submodule_populated_gently(path, error_code_ptr)) return 0; - sub = submodule_from_path(&null_oid, path); + sub = submodule_from_path(the_repository, &null_oid, path); if (!sub) BUG("could not get submodule information for '%s'", path); @@ -1623,7 +1625,7 @@ int submodule_move_head(const char *path, } else { char *gitdir = xstrfmt("%s/modules/%s", get_git_common_dir(), sub->name); - connect_work_tree_and_git_dir(path, gitdir); + connect_work_tree_and_git_dir(path, gitdir, 0); free(gitdir); /* make sure the index is clean as well */ @@ -1633,7 +1635,7 @@ int submodule_move_head(const char *path, if (old_head && (flags & SUBMODULE_MOVE_HEAD_FORCE)) { char *gitdir = xstrfmt("%s/modules/%s", get_git_common_dir(), sub->name); - connect_work_tree_and_git_dir(path, gitdir); + connect_work_tree_and_git_dir(path, gitdir, 1); free(gitdir); } } @@ -1886,7 +1888,7 @@ static void relocate_single_git_dir_into_superproject(const char *prefix, real_old_git_dir = real_pathdup(old_git_dir, 1); - sub = submodule_from_path(&null_oid, path); + sub = submodule_from_path(the_repository, &null_oid, path); if (!sub) die(_("could not lookup name for submodule '%s'"), path); @@ -1942,11 +1944,11 @@ void absorb_git_dir_into_superproject(const char *prefix, * superproject did not rewrite the git file links yet, * fix it now. */ - sub = submodule_from_path(&null_oid, path); + sub = submodule_from_path(the_repository, &null_oid, path); if (!sub) die(_("could not lookup name for submodule '%s'"), path); connect_work_tree_and_git_dir(path, - git_path("modules/%s", sub->name)); + git_path("modules/%s", sub->name), 0); } else { /* Is it already absorbed into the superprojects git dir? */ char *real_sub_git_dir = real_pathdup(sub_git_dir, 1); @@ -2088,7 +2090,7 @@ int submodule_to_gitdir(struct strbuf *buf, const char *submodule) strbuf_addstr(buf, git_dir); } if (!is_git_directory(buf->buf)) { - sub = submodule_from_path(&null_oid, submodule); + sub = submodule_from_path(the_repository, &null_oid, submodule); if (!sub) { ret = -1; goto cleanup; diff --git a/submodule.h b/submodule.h index 9589f13127..e5526f6aaa 100644 --- a/submodule.h +++ b/submodule.h @@ -105,7 +105,6 @@ extern int push_unpushed_submodules(struct oid_array *commits, const char **refspec, int refspec_nr, const struct string_list *push_options, int dry_run); -extern void connect_work_tree_and_git_dir(const char *work_tree, const char *git_dir); /* * Given a submodule path (as in the index), return the repository * path of that submodule in 'buf'. Return -1 on error or when the @@ -293,6 +293,28 @@ and know what setup is needed for it. Or when you want to run everything up to a certain test. +Running tests with special setups +--------------------------------- + +The whole test suite could be run to test some special features +that cannot be easily covered by a few specific test cases. These +could be enabled by running the test suite with correct GIT_TEST_ +environment set. + +GIT_TEST_SPLIT_INDEX=<boolean> forces split-index mode on the whole +test suite. Accept any boolean values that are accepted by git-config. + +GIT_TEST_FULL_IN_PACK_ARRAY=<boolean> exercises the uncommon +pack-objects code path where there are more than 1024 packs even if +the actual number of packs in repository is below this limit. Accept +any boolean values that are accepted by git-config. + +GIT_TEST_OE_SIZE=<n> exercises the uncommon pack-objects code path +where we do not cache object size in memory and read it from existing +packs on demand. This normally only happens when the object size is +over 2GB. This variable forces the code path on any object larger than +<n> bytes. + Naming Tests ------------ diff --git a/t/helper/test-drop-caches.c b/t/helper/test-drop-caches.c index 838760898b..d6bcfddf13 100644 --- a/t/helper/test-drop-caches.c +++ b/t/helper/test-drop-caches.c @@ -2,6 +2,7 @@ #include "git-compat-util.h" #if defined(GIT_WINDOWS_NATIVE) +#include "lazyload.h" static int cmd_sync(void) { @@ -82,8 +83,7 @@ static int cmd_dropcaches(void) { HANDLE hProcess = GetCurrentProcess(); HANDLE hToken; - HMODULE ntdll; - DWORD(WINAPI *NtSetSystemInformation)(INT, PVOID, ULONG); + DECLARE_PROC_ADDR(ntdll.dll, DWORD, NtSetSystemInformation, INT, PVOID, ULONG); SYSTEM_MEMORY_LIST_COMMAND command; int status; @@ -95,14 +95,8 @@ static int cmd_dropcaches(void) CloseHandle(hToken); - ntdll = LoadLibrary("ntdll.dll"); - if (!ntdll) - return error("Can't load ntdll.dll, wrong Windows version?"); - - NtSetSystemInformation = - (DWORD(WINAPI *)(INT, PVOID, ULONG))GetProcAddress(ntdll, "NtSetSystemInformation"); - if (!NtSetSystemInformation) - return error("Can't get function addresses, wrong Windows version?"); + if (!INIT_PROC_ADDR(NtSetSystemInformation)) + return error("Could not find NtSetSystemInformation() function"); command = MemoryPurgeStandbyList; status = NtSetSystemInformation( @@ -115,8 +109,6 @@ static int cmd_dropcaches(void) else if (status != STATUS_SUCCESS) error("Unable to execute the memory list command %d", status); - FreeLibrary(ntdll); - return status; } diff --git a/t/helper/test-path-utils.c b/t/helper/test-path-utils.c index e115d44ac2..ae091d9b3e 100644 --- a/t/helper/test-path-utils.c +++ b/t/helper/test-path-utils.c @@ -1,6 +1,7 @@ #include "test-tool.h" #include "cache.h" #include "string-list.h" +#include "utf8.h" /* * A "string_list_each_func_t" function that normalizes an entry from @@ -171,6 +172,11 @@ static struct test_data dirname_data[] = { { NULL, NULL } }; +static int is_dotgitmodules(const char *path) +{ + return is_hfs_dotgitmodules(path) || is_ntfs_dotgitmodules(path); +} + int cmd__path_utils(int argc, const char **argv) { if (argc == 3 && !strcmp(argv[1], "normalize_path_copy")) { @@ -271,6 +277,20 @@ int cmd__path_utils(int argc, const char **argv) if (argc == 2 && !strcmp(argv[1], "dirname")) return test_function(dirname_data, posix_dirname, argv[1]); + if (argc > 2 && !strcmp(argv[1], "is_dotgitmodules")) { + int res = 0, expect = 1, i; + for (i = 2; i < argc; i++) + if (!strcmp("--not", argv[i])) + expect = !expect; + else if (expect != is_dotgitmodules(argv[i])) + res = error("'%s' is %s.gitmodules", argv[i], + expect ? "not " : ""); + else + fprintf(stderr, "ok: '%s' is %s.gitmodules\n", + argv[i], expect ? "" : "not "); + return !!res; + } + fprintf(stderr, "%s: unknown function name: %s\n", argv[0], argv[1] ? argv[1] : "(there was none)"); return 1; diff --git a/t/helper/test-pkt-line.c b/t/helper/test-pkt-line.c new file mode 100644 index 0000000000..0f19e53c75 --- /dev/null +++ b/t/helper/test-pkt-line.c @@ -0,0 +1,64 @@ +#include "pkt-line.h" + +static void pack_line(const char *line) +{ + if (!strcmp(line, "0000") || !strcmp(line, "0000\n")) + packet_flush(1); + else if (!strcmp(line, "0001") || !strcmp(line, "0001\n")) + packet_delim(1); + else + packet_write_fmt(1, "%s", line); +} + +static void pack(int argc, const char **argv) +{ + if (argc) { /* read from argv */ + int i; + for (i = 0; i < argc; i++) + pack_line(argv[i]); + } else { /* read from stdin */ + char line[LARGE_PACKET_MAX]; + while (fgets(line, sizeof(line), stdin)) { + pack_line(line); + } + } +} + +static void unpack(void) +{ + struct packet_reader reader; + packet_reader_init(&reader, 0, NULL, 0, + PACKET_READ_GENTLE_ON_EOF | + PACKET_READ_CHOMP_NEWLINE); + + while (packet_reader_read(&reader) != PACKET_READ_EOF) { + switch (reader.status) { + case PACKET_READ_EOF: + break; + case PACKET_READ_NORMAL: + printf("%s\n", reader.line); + break; + case PACKET_READ_FLUSH: + printf("0000\n"); + break; + case PACKET_READ_DELIM: + printf("0001\n"); + break; + } + } +} + +int cmd_main(int argc, const char **argv) +{ + if (argc < 2) + die("too few arguments"); + + if (!strcmp(argv[1], "pack")) + pack(argc - 2, argv + 2); + else if (!strcmp(argv[1], "unpack")) + unpack(); + else + die("invalid argument '%s'", argv[1]); + + return 0; +} diff --git a/t/helper/test-ref-store.c b/t/helper/test-ref-store.c index 7c4f43746e..e9e0541276 100644 --- a/t/helper/test-ref-store.c +++ b/t/helper/test-ref-store.c @@ -3,6 +3,7 @@ #include "refs.h" #include "worktree.h" #include "object-store.h" +#include "repository.h" static const char *notnull(const char *arg, const char *name) { @@ -23,7 +24,7 @@ static const char **get_store(const char **argv, struct ref_store **refs) if (!argv[0]) { die("ref store required"); } else if (!strcmp(argv[0], "main")) { - *refs = get_main_ref_store(); + *refs = get_main_ref_store(the_repository); } else if (skip_prefix(argv[0], "submodule:", &gitdir)) { struct strbuf sb = STRBUF_INIT; int ret; diff --git a/t/helper/test-scrap-cache-tree.c b/t/helper/test-scrap-cache-tree.c index d26d3e7c8b..393f1604ff 100644 --- a/t/helper/test-scrap-cache-tree.c +++ b/t/helper/test-scrap-cache-tree.c @@ -4,10 +4,10 @@ #include "tree.h" #include "cache-tree.h" -static struct lock_file index_lock; - int cmd__scrap_cache_tree(int ac, const char **av) { + struct lock_file index_lock = LOCK_INIT; + setup_git_directory(); hold_locked_index(&index_lock, LOCK_DIE_ON_ERROR); if (read_cache() < 0) diff --git a/t/helper/test-submodule-config.c b/t/helper/test-submodule-config.c index 5c6e4b010d..e2692746df 100644 --- a/t/helper/test-submodule-config.c +++ b/t/helper/test-submodule-config.c @@ -49,9 +49,11 @@ int cmd__submodule_config(int argc, const char **argv) die_usage(argc, argv, "Commit not found."); if (lookup_name) { - submodule = submodule_from_name(&commit_oid, path_or_name); + submodule = submodule_from_name(the_repository, + &commit_oid, path_or_name); } else - submodule = submodule_from_path(&commit_oid, path_or_name); + submodule = submodule_from_path(the_repository, + &commit_oid, path_or_name); if (!submodule) die_usage(argc, argv, "Submodule not found."); @@ -65,7 +67,7 @@ int cmd__submodule_config(int argc, const char **argv) arg += 2; } - submodule_free(); + submodule_free(the_repository); return 0; } diff --git a/t/helper/test-write-cache.c b/t/helper/test-write-cache.c index 017dc30380..8837717d36 100644 --- a/t/helper/test-write-cache.c +++ b/t/helper/test-write-cache.c @@ -2,22 +2,18 @@ #include "cache.h" #include "lockfile.h" -static struct lock_file index_lock; - int cmd__write_cache(int argc, const char **argv) { - int i, cnt = 1, lockfd; + struct lock_file index_lock = LOCK_INIT; + int i, cnt = 1; if (argc == 2) cnt = strtol(argv[1], NULL, 0); setup_git_directory(); read_cache(); for (i = 0; i < cnt; i++) { - lockfd = hold_locked_index(&index_lock, LOCK_DIE_ON_ERROR); - if (0 <= lockfd) { - write_locked_index(&the_index, &index_lock, COMMIT_LOCK); - } else { - rollback_lock_file(&index_lock); - } + hold_locked_index(&index_lock, LOCK_DIE_ON_ERROR); + if (write_locked_index(&the_index, &index_lock, COMMIT_LOCK)) + die("unable to write index file"); } return 0; diff --git a/t/lib-pack.sh b/t/lib-pack.sh index 501078249d..c4d907a450 100644 --- a/t/lib-pack.sh +++ b/t/lib-pack.sh @@ -79,6 +79,18 @@ pack_obj () { ;; esac + # If it's not a delta, we can convince pack-objects to generate a pack + # with just our entry, and then strip off the header (12 bytes) and + # trailer (20 bytes). + if test -z "$2" + then + echo "$1" | git pack-objects --stdout >pack_obj.tmp && + size=$(wc -c <pack_obj.tmp) && + dd if=pack_obj.tmp bs=1 count=$((size - 20 - 12)) skip=12 && + rm -f pack_obj.tmp + return + fi + echo >&2 "BUG: don't know how to print $1${2:+ (from $2)}" return 1 } diff --git a/t/perf/aggregate.perl b/t/perf/aggregate.perl index 48637ef64b..bc865160e7 100755 --- a/t/perf/aggregate.perl +++ b/t/perf/aggregate.perl @@ -4,6 +4,7 @@ use lib '../../perl/build/lib'; use strict; use warnings; use JSON; +use Getopt::Long; use Git; sub get_times { @@ -36,46 +37,34 @@ sub format_times { return $out; } +sub usage { + print <<EOT; +./aggregate.perl [options] [--] [<dir_or_rev>...] [--] [<test_script>...] > + + Options: + --codespeed * Format output for Codespeed + --reponame <str> * Send given reponame to codespeed + --sort-by <str> * Sort output (only "regression" criteria is supported) + --subsection <str> * Use results from given subsection + +EOT + exit(1); +} + my (@dirs, %dirnames, %dirabbrevs, %prefixes, @tests, $codespeed, $sortby, $subsection, $reponame); + +Getopt::Long::Configure qw/ require_order /; + +my $rc = GetOptions("codespeed" => \$codespeed, + "reponame=s" => \$reponame, + "sort-by=s" => \$sortby, + "subsection=s" => \$subsection); +usage() unless $rc; + while (scalar @ARGV) { my $arg = $ARGV[0]; my $dir; - if ($arg eq "--codespeed") { - $codespeed = 1; - shift @ARGV; - next; - } - if ($arg =~ /--sort-by(?:=(.*))?/) { - shift @ARGV; - if (defined $1) { - $sortby = $1; - } else { - $sortby = shift @ARGV; - if (! defined $sortby) { - die "'--sort-by' requires an argument"; - } - } - next; - } - if ($arg eq "--subsection") { - shift @ARGV; - $subsection = $ARGV[0]; - shift @ARGV; - if (! $subsection) { - die "empty subsection"; - } - next; - } - if ($arg eq "--reponame") { - shift @ARGV; - $reponame = $ARGV[0]; - shift @ARGV; - if (! $reponame) { - die "empty reponame"; - } - next; - } last if -f $arg or $arg eq "--"; if (! -d $arg) { my $rev = Git::command_oneline(qw(rev-parse --verify), $arg); @@ -225,7 +214,8 @@ sub print_sorted_results { my ($sortby) = @_; if ($sortby ne "regression") { - die "only 'regression' is supported as '--sort-by' argument"; + print "Only 'regression' is supported as '--sort-by' argument\n"; + usage(); } my @evolutions; diff --git a/t/perf/bisect_run_script b/t/perf/bisect_run_script index 038255df4b..3ebaf15521 100755 --- a/t/perf/bisect_run_script +++ b/t/perf/bisect_run_script @@ -24,6 +24,12 @@ result_file="$info_dir/perf_${script_number}_${bisect_head}_results.txt" GIT_PERF_DIRS_OR_REVS="$bisect_head" export GIT_PERF_DIRS_OR_REVS +# Don't use codespeed +GIT_PERF_CODESPEED_OUTPUT= +GIT_PERF_SEND_TO_CODESPEED= +export GIT_PERF_CODESPEED_OUTPUT +export GIT_PERF_SEND_TO_CODESPEED + ./run "$script" >"$result_file" 2>&1 || die "Failed to run perf test '$script'" rtime=$(sed -n "s/^$script_number\.$test_number:.*\([0-9]\+\.[0-9]\+\)(.*).*\$/\1/p" "$result_file") diff --git a/t/t0028-working-tree-encoding.sh b/t/t0028-working-tree-encoding.sh new file mode 100755 index 0000000000..12b8eb963a --- /dev/null +++ b/t/t0028-working-tree-encoding.sh @@ -0,0 +1,245 @@ +#!/bin/sh + +test_description='working-tree-encoding conversion via gitattributes' + +. ./test-lib.sh + +GIT_TRACE_WORKING_TREE_ENCODING=1 && export GIT_TRACE_WORKING_TREE_ENCODING + +test_expect_success 'setup test files' ' + git config core.eol lf && + + text="hallo there!\ncan you read me?" && + echo "*.utf16 text working-tree-encoding=utf-16" >.gitattributes && + printf "$text" >test.utf8.raw && + printf "$text" | iconv -f UTF-8 -t UTF-16 >test.utf16.raw && + printf "$text" | iconv -f UTF-8 -t UTF-32 >test.utf32.raw && + + # Line ending tests + printf "one\ntwo\nthree\n" >lf.utf8.raw && + printf "one\r\ntwo\r\nthree\r\n" >crlf.utf8.raw && + + # BOM tests + printf "\0a\0b\0c" >nobom.utf16be.raw && + printf "a\0b\0c\0" >nobom.utf16le.raw && + printf "\376\777\0a\0b\0c" >bebom.utf16be.raw && + printf "\777\376a\0b\0c\0" >lebom.utf16le.raw && + printf "\0\0\0a\0\0\0b\0\0\0c" >nobom.utf32be.raw && + printf "a\0\0\0b\0\0\0c\0\0\0" >nobom.utf32le.raw && + printf "\0\0\376\777\0\0\0a\0\0\0b\0\0\0c" >bebom.utf32be.raw && + printf "\777\376\0\0a\0\0\0b\0\0\0c\0\0\0" >lebom.utf32le.raw && + + # Add only UTF-16 file, we will add the UTF-32 file later + cp test.utf16.raw test.utf16 && + cp test.utf32.raw test.utf32 && + git add .gitattributes test.utf16 && + git commit -m initial +' + +test_expect_success 'ensure UTF-8 is stored in Git' ' + test_when_finished "rm -f test.utf16.git" && + + git cat-file -p :test.utf16 >test.utf16.git && + test_cmp_bin test.utf8.raw test.utf16.git +' + +test_expect_success 're-encode to UTF-16 on checkout' ' + test_when_finished "rm -f test.utf16.raw" && + + rm test.utf16 && + git checkout test.utf16 && + test_cmp_bin test.utf16.raw test.utf16 +' + +test_expect_success 'check $GIT_DIR/info/attributes support' ' + test_when_finished "rm -f test.utf32.git" && + test_when_finished "git reset --hard HEAD" && + + echo "*.utf32 text working-tree-encoding=utf-32" >.git/info/attributes && + git add test.utf32 && + + git cat-file -p :test.utf32 >test.utf32.git && + test_cmp_bin test.utf8.raw test.utf32.git +' + +for i in 16 32 +do + test_expect_success "check prohibited UTF-${i} BOM" ' + test_when_finished "git reset --hard HEAD" && + + echo "*.utf${i}be text working-tree-encoding=utf-${i}be" >>.gitattributes && + echo "*.utf${i}le text working-tree-encoding=utf-${i}LE" >>.gitattributes && + + # Here we add a UTF-16 (resp. UTF-32) files with BOM (big/little-endian) + # but we tell Git to treat it as UTF-16BE/UTF-16LE (resp. UTF-32). + # In these cases the BOM is prohibited. + cp bebom.utf${i}be.raw bebom.utf${i}be && + test_must_fail git add bebom.utf${i}be 2>err.out && + test_i18ngrep "fatal: BOM is prohibited .* utf-${i}be" err.out && + test_i18ngrep "use UTF-${i} as working-tree-encoding" err.out && + + cp lebom.utf${i}le.raw lebom.utf${i}be && + test_must_fail git add lebom.utf${i}be 2>err.out && + test_i18ngrep "fatal: BOM is prohibited .* utf-${i}be" err.out && + test_i18ngrep "use UTF-${i} as working-tree-encoding" err.out && + + cp bebom.utf${i}be.raw bebom.utf${i}le && + test_must_fail git add bebom.utf${i}le 2>err.out && + test_i18ngrep "fatal: BOM is prohibited .* utf-${i}LE" err.out && + test_i18ngrep "use UTF-${i} as working-tree-encoding" err.out && + + cp lebom.utf${i}le.raw lebom.utf${i}le && + test_must_fail git add lebom.utf${i}le 2>err.out && + test_i18ngrep "fatal: BOM is prohibited .* utf-${i}LE" err.out && + test_i18ngrep "use UTF-${i} as working-tree-encoding" err.out + ' + + test_expect_success "check required UTF-${i} BOM" ' + test_when_finished "git reset --hard HEAD" && + + echo "*.utf${i} text working-tree-encoding=utf-${i}" >>.gitattributes && + + cp nobom.utf${i}be.raw nobom.utf${i} && + test_must_fail git add nobom.utf${i} 2>err.out && + test_i18ngrep "fatal: BOM is required .* utf-${i}" err.out && + test_i18ngrep "use UTF-${i}BE or UTF-${i}LE" err.out && + + cp nobom.utf${i}le.raw nobom.utf${i} && + test_must_fail git add nobom.utf${i} 2>err.out && + test_i18ngrep "fatal: BOM is required .* utf-${i}" err.out && + test_i18ngrep "use UTF-${i}BE or UTF-${i}LE" err.out + ' + + test_expect_success "eol conversion for UTF-${i} encoded files on checkout" ' + test_when_finished "rm -f crlf.utf${i}.raw lf.utf${i}.raw" && + test_when_finished "git reset --hard HEAD^" && + + cat lf.utf8.raw | iconv -f UTF-8 -t UTF-${i} >lf.utf${i}.raw && + cat crlf.utf8.raw | iconv -f UTF-8 -t UTF-${i} >crlf.utf${i}.raw && + cp crlf.utf${i}.raw eol.utf${i} && + + cat >expectIndexLF <<-EOF && + i/lf w/-text attr/text eol.utf${i} + EOF + + git add eol.utf${i} && + git commit -m eol && + + # UTF-${i} with CRLF (Windows line endings) + rm eol.utf${i} && + git -c core.eol=crlf checkout eol.utf${i} && + test_cmp_bin crlf.utf${i}.raw eol.utf${i} && + + # Although the file has CRLF in the working tree, + # ensure LF in the index + git ls-files --eol eol.utf${i} >actual && + test_cmp expectIndexLF actual && + + # UTF-${i} with LF (Unix line endings) + rm eol.utf${i} && + git -c core.eol=lf checkout eol.utf${i} && + test_cmp_bin lf.utf${i}.raw eol.utf${i} && + + # The file LF in the working tree, ensure LF in the index + git ls-files --eol eol.utf${i} >actual && + test_cmp expectIndexLF actual + ' +done + +test_expect_success 'check unsupported encodings' ' + test_when_finished "git reset --hard HEAD" && + + echo "*.set text working-tree-encoding" >.gitattributes && + printf "set" >t.set && + test_must_fail git add t.set 2>err.out && + test_i18ngrep "true/false are no valid working-tree-encodings" err.out && + + echo "*.unset text -working-tree-encoding" >.gitattributes && + printf "unset" >t.unset && + git add t.unset && + + echo "*.empty text working-tree-encoding=" >.gitattributes && + printf "empty" >t.empty && + git add t.empty && + + echo "*.garbage text working-tree-encoding=garbage" >.gitattributes && + printf "garbage" >t.garbage && + test_must_fail git add t.garbage 2>err.out && + test_i18ngrep "failed to encode" err.out +' + +test_expect_success 'error if encoding round trip is not the same during refresh' ' + BEFORE_STATE=$(git rev-parse HEAD) && + test_when_finished "git reset --hard $BEFORE_STATE" && + + # Add and commit a UTF-16 file but skip the "working-tree-encoding" + # filter. Consequently, the in-repo representation is UTF-16 and not + # UTF-8. This simulates a Git version that has no working tree encoding + # support. + echo "*.utf16le text working-tree-encoding=utf-16le" >.gitattributes && + echo "hallo" >nonsense.utf16le && + TEST_HASH=$(git hash-object --no-filters -w nonsense.utf16le) && + git update-index --add --cacheinfo 100644 $TEST_HASH nonsense.utf16le && + COMMIT=$(git commit-tree -p $(git rev-parse HEAD) -m "plain commit" $(git write-tree)) && + git update-ref refs/heads/master $COMMIT && + + test_must_fail git checkout HEAD^ 2>err.out && + test_i18ngrep "error: .* overwritten by checkout:" err.out +' + +test_expect_success 'error if encoding garbage is already in Git' ' + BEFORE_STATE=$(git rev-parse HEAD) && + test_when_finished "git reset --hard $BEFORE_STATE" && + + # Skip the UTF-16 filter for the added file + # This simulates a Git version that has no checkoutEncoding support + cp nobom.utf16be.raw nonsense.utf16 && + TEST_HASH=$(git hash-object --no-filters -w nonsense.utf16) && + git update-index --add --cacheinfo 100644 $TEST_HASH nonsense.utf16 && + COMMIT=$(git commit-tree -p $(git rev-parse HEAD) -m "plain commit" $(git write-tree)) && + git update-ref refs/heads/master $COMMIT && + + git diff 2>err.out && + test_i18ngrep "error: BOM is required" err.out +' + +test_expect_success 'check roundtrip encoding' ' + test_when_finished "rm -f roundtrip.shift roundtrip.utf16" && + test_when_finished "git reset --hard HEAD" && + + text="hallo there!\nroundtrip test here!" && + printf "$text" | iconv -f UTF-8 -t SHIFT-JIS >roundtrip.shift && + printf "$text" | iconv -f UTF-8 -t UTF-16 >roundtrip.utf16 && + echo "*.shift text working-tree-encoding=SHIFT-JIS" >>.gitattributes && + + # SHIFT-JIS encoded files are round-trip checked by default... + GIT_TRACE=1 git add .gitattributes roundtrip.shift 2>&1 | + grep "Checking roundtrip encoding for SHIFT-JIS" && + git reset && + + # ... unless we overwrite the Git config! + ! GIT_TRACE=1 git -c core.checkRoundtripEncoding=garbage \ + add .gitattributes roundtrip.shift 2>&1 | + grep "Checking roundtrip encoding for SHIFT-JIS" && + git reset && + + # UTF-16 encoded files should not be round-trip checked by default... + ! GIT_TRACE=1 git add roundtrip.utf16 2>&1 | + grep "Checking roundtrip encoding for UTF-16" && + git reset && + + # ... unless we tell Git to check it! + GIT_TRACE=1 git -c core.checkRoundtripEncoding="UTF-16, UTF-32" \ + add roundtrip.utf16 2>&1 | + grep "Checking roundtrip encoding for utf-16" && + git reset && + + # ... unless we tell Git to check it! + # (here we also check that the casing of the encoding is irrelevant) + GIT_TRACE=1 git -c core.checkRoundtripEncoding="UTF-32, utf-16" \ + add roundtrip.utf16 2>&1 | + grep "Checking roundtrip encoding for utf-16" && + git reset +' + +test_done diff --git a/t/t0060-path-utils.sh b/t/t0060-path-utils.sh index f46e3c4995..21a8b53132 100755 --- a/t/t0060-path-utils.sh +++ b/t/t0060-path-utils.sh @@ -349,4 +349,90 @@ test_submodule_relative_url "(null)" "ssh://hostname:22/repo" "../subrepo" "ssh: test_submodule_relative_url "(null)" "user@host:path/to/repo" "../subrepo" "user@host:path/to/subrepo" test_submodule_relative_url "(null)" "user@host:repo" "../subrepo" "user@host:subrepo" +test_expect_success 'match .gitmodules' ' + test-tool path-utils is_dotgitmodules \ + .gitmodules \ + \ + .git${u200c}modules \ + \ + .Gitmodules \ + .gitmoduleS \ + \ + ".gitmodules " \ + ".gitmodules." \ + ".gitmodules " \ + ".gitmodules. " \ + ".gitmodules ." \ + ".gitmodules.." \ + ".gitmodules " \ + ".gitmodules. " \ + ".gitmodules . " \ + ".gitmodules ." \ + \ + ".Gitmodules " \ + ".Gitmodules." \ + ".Gitmodules " \ + ".Gitmodules. " \ + ".Gitmodules ." \ + ".Gitmodules.." \ + ".Gitmodules " \ + ".Gitmodules. " \ + ".Gitmodules . " \ + ".Gitmodules ." \ + \ + GITMOD~1 \ + gitmod~1 \ + GITMOD~2 \ + gitmod~3 \ + GITMOD~4 \ + \ + "GITMOD~1 " \ + "gitmod~2." \ + "GITMOD~3 " \ + "gitmod~4. " \ + "GITMOD~1 ." \ + "gitmod~2 " \ + "GITMOD~3. " \ + "gitmod~4 . " \ + \ + GI7EBA~1 \ + gi7eba~9 \ + \ + GI7EB~10 \ + GI7EB~11 \ + GI7EB~99 \ + GI7EB~10 \ + GI7E~100 \ + GI7E~101 \ + GI7E~999 \ + ~1000000 \ + ~9999999 \ + \ + --not \ + ".gitmodules x" \ + ".gitmodules .x" \ + \ + " .gitmodules" \ + \ + ..gitmodules \ + \ + gitmodules \ + \ + .gitmodule \ + \ + ".gitmodules x " \ + ".gitmodules .x" \ + \ + GI7EBA~ \ + GI7EBA~0 \ + GI7EBA~~1 \ + GI7EBA~X \ + Gx7EBA~1 \ + GI7EBX~1 \ + \ + GI7EB~1 \ + GI7EB~01 \ + GI7EB~1X +' + test_done diff --git a/t/t0061-run-command.sh b/t/t0061-run-command.sh index d03149be9f..c887ed5b45 100755 --- a/t/t0061-run-command.sh +++ b/t/t0061-run-command.sh @@ -145,7 +145,7 @@ test_trace () { expect="$1" shift GIT_TRACE=1 test-tool run-command "$@" run-command true 2>&1 >/dev/null | \ - sed 's/.* run_command: //' >actual && + sed -e 's/.* run_command: //' -e '/trace: .*/d' >actual && echo "$expect true" >expect && test_cmp expect actual } diff --git a/t/t1300-repo-config.sh b/t/t1300-config.sh index e95b1e67da..03c223708e 100755 --- a/t/t1300-repo-config.sh +++ b/t/t1300-config.sh @@ -108,6 +108,7 @@ bar = foo [beta] baz = multiple \ lines +foo = bar EOF test_expect_success 'unset with cont. lines' ' @@ -118,6 +119,7 @@ cat > expect <<\EOF [alpha] bar = foo [beta] +foo = bar EOF test_expect_success 'unset with cont. lines is correct' 'test_cmp expect .git/config' @@ -740,7 +742,7 @@ test_expect_success bool ' do git config --bool --get bool.true$i >>result git config --bool --get bool.false$i >>result - done && + done && test_cmp expect result' test_expect_success 'invalid bool (--get)' ' @@ -931,6 +933,36 @@ test_expect_success 'get --expiry-date' ' test_must_fail git config --expiry-date date.invalid1 ' +test_expect_success 'get --type=color' ' + rm .git/config && + git config foo.color "red" && + git config --get --type=color foo.color >actual.raw && + test_decode_color <actual.raw >actual && + echo "<RED>" >expect && + test_cmp expect actual +' + +cat >expect << EOF +[foo] + color = red +EOF + +test_expect_success 'set --type=color' ' + rm .git/config && + git config --type=color foo.color "red" && + test_cmp expect .git/config +' + +test_expect_success 'get --type=color barfs on non-color' ' + echo "[foo]bar=not-a-color" >.git/config && + test_must_fail git config --get --type=color foo.bar +' + +test_expect_success 'set --type=color barfs on non-color' ' + test_must_fail git config --type=color foo.color "not-a-color" 2>error && + test_i18ngrep "cannot parse color" error +' + cat > expect << EOF [quote] leading = " test" @@ -1411,7 +1443,7 @@ test_expect_success 'urlmatch with wildcard' ' ' # good section hygiene -test_expect_failure 'unsetting the last key in a section removes header' ' +test_expect_success '--unset last key removes section (except if commented)' ' cat >.git/config <<-\EOF && # some generic comment on the configuration file itself # a comment specific to this "section" section. @@ -1425,13 +1457,86 @@ test_expect_failure 'unsetting the last key in a section removes header' ' cat >expect <<-\EOF && # some generic comment on the configuration file itself + # a comment specific to this "section" section. + [section] + # some intervening lines + # that should also be dropped + + # please be careful when you update the above variable EOF git config --unset section.key && - test_cmp expect .git/config + test_cmp expect .git/config && + + cat >.git/config <<-\EOF && + [section] + key = value + [next-section] + EOF + + cat >expect <<-\EOF && + [next-section] + EOF + + git config --unset section.key && + test_cmp expect .git/config && + + q_to_tab >.git/config <<-\EOF && + [one] + Qkey = "multiline \ + QQ# with comment" + [two] + key = true + EOF + git config --unset two.key && + ! grep two .git/config && + + q_to_tab >.git/config <<-\EOF && + [one] + Qkey = "multiline \ + QQ# with comment" + [one] + key = true + EOF + git config --unset-all one.key && + test_line_count = 0 .git/config && + + q_to_tab >.git/config <<-\EOF && + [one] + Qkey = true + Q# a comment not at the start + [two] + Qkey = true + EOF + git config --unset two.key && + grep two .git/config && + + q_to_tab >.git/config <<-\EOF && + [one] + Qkey = not [two "subsection"] + [two "subsection"] + [two "subsection"] + Qkey = true + [TWO "subsection"] + [one] + EOF + git config --unset two.subsection.key && + test "not [two subsection]" = "$(git config one.key)" && + test_line_count = 3 .git/config ' -test_expect_failure 'adding a key into an empty section reuses header' ' +test_expect_success '--unset-all removes section if empty & uncommented' ' + cat >.git/config <<-\EOF && + [section] + key = value1 + key = value2 + EOF + + git config --unset-all section.key && + test_line_count = 0 .git/config +' + +test_expect_success 'adding a key into an empty section reuses header' ' cat >.git/config <<-\EOF && [section] EOF @@ -1611,4 +1716,88 @@ test_expect_success '--local requires a repo' ' test_expect_code 128 nongit git config --local foo.bar ' +cat >.git/config <<-\EOF && +[core] +foo = true +number = 10 +big = 1M +EOF + +test_expect_success 'identical modern --type specifiers are allowed' ' + git config --type=int --type=int core.big >actual && + echo 1048576 >expect && + test_cmp expect actual +' + +test_expect_success 'identical legacy --type specifiers are allowed' ' + git config --int --int core.big >actual && + echo 1048576 >expect && + test_cmp expect actual +' + +test_expect_success 'identical mixed --type specifiers are allowed' ' + git config --int --type=int core.big >actual && + echo 1048576 >expect && + test_cmp expect actual +' + +test_expect_success 'non-identical modern --type specifiers are not allowed' ' + test_must_fail git config --type=int --type=bool core.big 2>error && + test_i18ngrep "only one type at a time" error +' + +test_expect_success 'non-identical legacy --type specifiers are not allowed' ' + test_must_fail git config --int --bool core.big 2>error && + test_i18ngrep "only one type at a time" error +' + +test_expect_success 'non-identical mixed --type specifiers are not allowed' ' + test_must_fail git config --type=int --bool core.big 2>error && + test_i18ngrep "only one type at a time" error +' + +test_expect_success '--type allows valid type specifiers' ' + echo "true" >expect && + git config --type=bool core.foo >actual && + test_cmp expect actual +' + +test_expect_success '--no-type unsets type specifiers' ' + echo "10" >expect && + git config --type=bool --no-type core.number >actual && + test_cmp expect actual +' + +test_expect_success 'unset type specifiers may be reset to conflicting ones' ' + echo 1048576 >expect && + git config --type=bool --no-type --type=int core.big >actual && + test_cmp expect actual +' + +test_expect_success '--type rejects unknown specifiers' ' + test_must_fail git config --type=nonsense core.foo 2>error && + test_i18ngrep "unrecognized --type argument" error +' + +test_expect_success '--replace-all does not invent newlines' ' + q_to_tab >.git/config <<-\EOF && + [abc]key + QkeepSection + [xyz] + Qkey = 1 + [abc] + Qkey = a + EOF + q_to_tab >expect <<-\EOF && + [abc] + QkeepSection + [xyz] + Qkey = 1 + [abc] + Qkey = b + EOF + git config --replace-all abc.key b && + test_cmp .git/config expect +' + test_done diff --git a/t/t1310-config-default.sh b/t/t1310-config-default.sh new file mode 100755 index 0000000000..6049d91708 --- /dev/null +++ b/t/t1310-config-default.sh @@ -0,0 +1,36 @@ +#!/bin/sh + +test_description='Test git config in different settings (with --default)' + +. ./test-lib.sh + +test_expect_success 'uses --default when entry missing' ' + echo quux >expect && + git config -f config --default=quux core.foo >actual && + test_cmp expect actual +' + +test_expect_success 'does not use --default when entry present' ' + echo bar >expect && + git -c core.foo=bar config --default=baz core.foo >actual && + test_cmp expect actual +' + +test_expect_success 'canonicalizes --default with appropriate type' ' + echo true >expect && + git config -f config --default=yes --bool core.foo >actual && + test_cmp expect actual +' + +test_expect_success 'dies when --default cannot be parsed' ' + test_must_fail git config -f config --type=expiry-date --default=x --get \ + not.a.section 2>error && + test_i18ngrep "failed to format default config value" error +' + +test_expect_success 'does not allow --default without --get' ' + test_must_fail git config --default=quux --unset a.section >output 2>&1 && + test_i18ngrep "\-\-default is only applicable to" output +' + +test_done diff --git a/t/t1510-repo-setup.sh b/t/t1510-repo-setup.sh index e6854b828e..972bd9c785 100755 --- a/t/t1510-repo-setup.sh +++ b/t/t1510-repo-setup.sh @@ -238,7 +238,6 @@ test_expect_success '#0: nonbare repo, no explicit configuration' ' ' test_expect_success '#1: GIT_WORK_TREE without explicit GIT_DIR is accepted' ' - mkdir -p wt && try_repo 1 "$here" unset unset "" unset \ "$here/1/.git" "$here" "$here" 1/ \ "$here/1/.git" "$here" "$here" 1/sub/ 2>message && diff --git a/t/t2025-worktree-add.sh b/t/t2025-worktree-add.sh index d0d2e4f7ec..2240498924 100755 --- a/t/t2025-worktree-add.sh +++ b/t/t2025-worktree-add.sh @@ -198,13 +198,25 @@ test_expect_success '"add" with <branch> omitted' ' test_cmp_rev HEAD bat ' -test_expect_success '"add" auto-vivify does not clobber existing branch' ' - test_commit c1 && - test_commit c2 && - git branch precious HEAD~1 && - test_must_fail git worktree add precious && - test_cmp_rev HEAD~1 precious && - test_path_is_missing precious +test_expect_success '"add" checks out existing branch of dwimd name' ' + git branch dwim HEAD~1 && + git worktree add dwim && + test_cmp_rev HEAD~1 dwim && + ( + cd dwim && + test_cmp_rev HEAD dwim + ) +' + +test_expect_success '"add <path>" dwim fails with checked out branch' ' + git checkout -b test-branch && + test_must_fail git worktree add test-branch && + test_path_is_missing test-branch +' + +test_expect_success '"add --force" with existing dwimd name doesnt die' ' + git checkout test-branch && + git worktree add --force test-branch ' test_expect_success '"add" no auto-vivify with --detach and <branch> omitted' ' diff --git a/t/t3034-merge-recursive-rename-options.sh b/t/t3034-merge-recursive-rename-options.sh index b9c4028496..3d9fae68c4 100755 --- a/t/t3034-merge-recursive-rename-options.sh +++ b/t/t3034-merge-recursive-rename-options.sh @@ -309,4 +309,22 @@ test_expect_success 'last wins in --find-renames=<m> --rename-threshold=<n>' ' check_threshold_0 ' +test_expect_success 'merge.renames disables rename detection' ' + git read-tree --reset -u HEAD && + git -c merge.renames=false merge-recursive $tail && + check_no_renames +' + +test_expect_success 'merge.renames defaults to diff.renames' ' + git read-tree --reset -u HEAD && + git -c diff.renames=false merge-recursive $tail && + check_no_renames +' + +test_expect_success 'merge.renames overrides diff.renames' ' + git read-tree --reset -u HEAD && + test_must_fail git -c diff.renames=false -c merge.renames=true merge-recursive $tail && + $check_50 +' + test_done diff --git a/t/t3404-rebase-interactive.sh b/t/t3404-rebase-interactive.sh index 59c766540e..c65826ddac 100755 --- a/t/t3404-rebase-interactive.sh +++ b/t/t3404-rebase-interactive.sh @@ -1204,10 +1204,6 @@ test_expect_success 'drop' ' test A = $(git cat-file commit HEAD^^ | sed -ne \$p) ' -cat >expect <<EOF -Successfully rebased and updated refs/heads/missing-commit. -EOF - test_expect_success 'rebase -i respects rebase.missingCommitsCheck = ignore' ' test_config rebase.missingCommitsCheck ignore && rebase_setup_and_clean missing-commit && @@ -1215,7 +1211,9 @@ test_expect_success 'rebase -i respects rebase.missingCommitsCheck = ignore' ' FAKE_LINES="1 2 3 4" \ git rebase -i --root 2>actual && test D = $(git cat-file commit HEAD | sed -ne \$p) && - test_i18ncmp expect actual + test_i18ngrep \ + "Successfully rebased and updated refs/heads/missing-commit" \ + actual ' cat >expect <<EOF @@ -1227,15 +1225,24 @@ To avoid this message, use "drop" to explicitly remove a commit. Use 'git config rebase.missingCommitsCheck' to change the level of warnings. The possible behaviours are: ignore, warn, error. +Rebasing (1/4) +Rebasing (2/4) +Rebasing (3/4) +Rebasing (4/4) Successfully rebased and updated refs/heads/missing-commit. EOF +cr_to_nl () { + tr '\015' '\012' +} + test_expect_success 'rebase -i respects rebase.missingCommitsCheck = warn' ' test_config rebase.missingCommitsCheck warn && rebase_setup_and_clean missing-commit && set_fake_editor && FAKE_LINES="1 2 3 4" \ - git rebase -i --root 2>actual && + git rebase -i --root 2>actual.2 && + cr_to_nl <actual.2 >actual && test_i18ncmp expect actual && test D = $(git cat-file commit HEAD | sed -ne \$p) ' diff --git a/t/t3418-rebase-continue.sh b/t/t3418-rebase-continue.sh index 9214d0bb51..03bf1b8a3b 100755 --- a/t/t3418-rebase-continue.sh +++ b/t/t3418-rebase-continue.sh @@ -88,6 +88,55 @@ test_expect_success 'rebase passes merge strategy options correctly' ' git rebase --continue ' +test_expect_success '--skip after failed fixup cleans commit message' ' + test_when_finished "test_might_fail git rebase --abort" && + git checkout -b with-conflicting-fixup && + test_commit wants-fixup && + test_commit "fixup! wants-fixup" wants-fixup.t 1 wants-fixup-1 && + test_commit "fixup! wants-fixup" wants-fixup.t 2 wants-fixup-2 && + test_commit "fixup! wants-fixup" wants-fixup.t 3 wants-fixup-3 && + test_must_fail env FAKE_LINES="1 fixup 2 squash 4" \ + git rebase -i HEAD~4 && + + : now there is a conflict, and comments in the commit message && + git show HEAD >out && + grep "fixup! wants-fixup" out && + + : skip and continue && + echo "cp \"\$1\" .git/copy.txt" | write_script copy-editor.sh && + (test_set_editor "$PWD/copy-editor.sh" && git rebase --skip) && + + : the user should not have had to edit the commit message && + test_path_is_missing .git/copy.txt && + + : now the comments in the commit message should have been cleaned up && + git show HEAD >out && + ! grep "fixup! wants-fixup" out && + + : now, let us ensure that "squash" is handled correctly && + git reset --hard wants-fixup-3 && + test_must_fail env FAKE_LINES="1 squash 4 squash 2 squash 4" \ + git rebase -i HEAD~4 && + + : the first squash failed, but there are two more in the chain && + (test_set_editor "$PWD/copy-editor.sh" && + test_must_fail git rebase --skip) && + + : not the final squash, no need to edit the commit message && + test_path_is_missing .git/copy.txt && + + : The first squash was skipped, therefore: && + git show HEAD >out && + test_i18ngrep "# This is a combination of 2 commits" out && + + (test_set_editor "$PWD/copy-editor.sh" && git rebase --skip) && + git show HEAD >out && + test_i18ngrep ! "# This is a combination" out && + + : Final squash failed, but there was still a squash && + test_i18ngrep "# This is a combination of 2 commits" .git/copy.txt +' + test_expect_success 'setup rerere database' ' rm -fr .git/rebase-* && git reset --hard commit-new-file-F3-on-topic-branch && diff --git a/t/t3421-rebase-topology-linear.sh b/t/t3421-rebase-topology-linear.sh index b078f93046..99b2aac921 100755 --- a/t/t3421-rebase-topology-linear.sh +++ b/t/t3421-rebase-topology-linear.sh @@ -217,6 +217,7 @@ test_run_rebase success '' test_run_rebase success -m test_run_rebase success -i test_run_rebase failure -p +test_run_rebase success --rebase-merges # m # / @@ -327,9 +328,9 @@ test_run_rebase () { test_cmp_rev c HEAD " } -test_run_rebase failure '' -test_run_rebase failure -m -test_run_rebase failure -i +test_run_rebase success '' +test_run_rebase success -m +test_run_rebase success -i test_run_rebase failure -p test_run_rebase () { diff --git a/t/t3430-rebase-merges.sh b/t/t3430-rebase-merges.sh new file mode 100755 index 0000000000..ce6de6f491 --- /dev/null +++ b/t/t3430-rebase-merges.sh @@ -0,0 +1,316 @@ +#!/bin/sh +# +# Copyright (c) 2018 Johannes E. Schindelin +# + +test_description='git rebase -i --rebase-merges + +This test runs git rebase "interactively", retaining the branch structure by +recreating merge commits. + +Initial setup: + + -- B -- (first) + / \ + A - C - D - E - H (master) + \ / + F - G (second) +' +. ./test-lib.sh +. "$TEST_DIRECTORY"/lib-rebase.sh + +test_cmp_graph () { + cat >expect && + git log --graph --boundary --format=%s "$@" >output && + sed "s/ *$//" <output >output.trimmed && + test_cmp expect output.trimmed +} + +test_expect_success 'setup' ' + write_script replace-editor.sh <<-\EOF && + mv "$1" "$(git rev-parse --git-path ORIGINAL-TODO)" + cp script-from-scratch "$1" + EOF + + test_commit A && + git checkout -b first && + test_commit B && + git checkout master && + test_commit C && + test_commit D && + git merge --no-commit B && + test_tick && + git commit -m E && + git tag -m E E && + git checkout -b second C && + test_commit F && + test_commit G && + git checkout master && + git merge --no-commit G && + test_tick && + git commit -m H && + git tag -m H H +' + +test_expect_success 'create completely different structure' ' + cat >script-from-scratch <<-\EOF && + label onto + + # onebranch + pick G + pick D + label onebranch + + # second + reset onto + pick B + label second + + reset onto + merge -C H second + merge onebranch # Merge the topic branch '\''onebranch'\'' + EOF + test_config sequence.editor \""$PWD"/replace-editor.sh\" && + test_tick && + git rebase -i -r A && + test_cmp_graph <<-\EOF + * Merge the topic branch '\''onebranch'\'' + |\ + | * D + | * G + * | H + |\ \ + | |/ + |/| + | * B + |/ + * A + EOF +' + +test_expect_success 'generate correct todo list' ' + cat >expect <<-\EOF && + label onto + + reset onto + pick d9df450 B + label E + + reset onto + pick 5dee784 C + label branch-point + pick ca2c861 F + pick 088b00a G + label H + + reset branch-point # C + pick 12bd07b D + merge -C 2051b56 E # E + merge -C 233d48a H # H + + EOF + + grep -v "^#" <.git/ORIGINAL-TODO >output && + test_cmp expect output +' + +test_expect_success '`reset` refuses to overwrite untracked files' ' + git checkout -b refuse-to-reset && + test_commit dont-overwrite-untracked && + git checkout @{-1} && + : >dont-overwrite-untracked.t && + echo "reset refs/tags/dont-overwrite-untracked" >script-from-scratch && + test_config sequence.editor \""$PWD"/replace-editor.sh\" && + test_must_fail git rebase -r HEAD && + git rebase --abort +' + +test_expect_success 'failed `merge` writes patch (may be rescheduled, too)' ' + test_when_finished "test_might_fail git rebase --abort" && + git checkout -b conflicting-merge A && + + : fail because of conflicting untracked file && + >G.t && + echo "merge -C H G" >script-from-scratch && + test_config sequence.editor \""$PWD"/replace-editor.sh\" && + test_tick && + test_must_fail git rebase -ir HEAD && + grep "^merge -C .* G$" .git/rebase-merge/done && + grep "^merge -C .* G$" .git/rebase-merge/git-rebase-todo && + test_path_is_file .git/rebase-merge/patch && + + : fail because of merge conflict && + rm G.t .git/rebase-merge/patch && + git reset --hard && + test_commit conflicting-G G.t not-G conflicting-G && + test_must_fail git rebase --continue && + ! grep "^merge -C .* G$" .git/rebase-merge/git-rebase-todo && + test_path_is_file .git/rebase-merge/patch +' + +test_expect_success 'with a branch tip that was cherry-picked already' ' + git checkout -b already-upstream master && + base="$(git rev-parse --verify HEAD)" && + + test_commit A1 && + test_commit A2 && + git reset --hard $base && + test_commit B1 && + test_tick && + git merge -m "Merge branch A" A2 && + + git checkout -b upstream-with-a2 $base && + test_tick && + git cherry-pick A2 && + + git checkout already-upstream && + test_tick && + git rebase -i -r upstream-with-a2 && + test_cmp_graph upstream-with-a2.. <<-\EOF + * Merge branch A + |\ + | * A1 + * | B1 + |/ + o A2 + EOF +' + +test_expect_success 'do not rebase cousins unless asked for' ' + git checkout -b cousins master && + before="$(git rev-parse --verify HEAD)" && + test_tick && + git rebase -r HEAD^ && + test_cmp_rev HEAD $before && + test_tick && + git rebase --rebase-merges=rebase-cousins HEAD^ && + test_cmp_graph HEAD^.. <<-\EOF + * Merge the topic branch '\''onebranch'\'' + |\ + | * D + | * G + |/ + o H + EOF +' + +test_expect_success 'refs/rewritten/* is worktree-local' ' + git worktree add wt && + cat >wt/script-from-scratch <<-\EOF && + label xyz + exec GIT_DIR=../.git git rev-parse --verify refs/rewritten/xyz >a || : + exec git rev-parse --verify refs/rewritten/xyz >b + EOF + + test_config -C wt sequence.editor \""$PWD"/replace-editor.sh\" && + git -C wt rebase -i HEAD && + test_must_be_empty wt/a && + test_cmp_rev HEAD "$(cat wt/b)" +' + +test_expect_success 'post-rewrite hook and fixups work for merges' ' + git checkout -b post-rewrite && + test_commit same1 && + git reset --hard HEAD^ && + test_commit same2 && + git merge -m "to fix up" same1 && + echo same old same old >same2.t && + test_tick && + git commit --fixup HEAD same2.t && + fixup="$(git rev-parse HEAD)" && + + mkdir -p .git/hooks && + test_when_finished "rm .git/hooks/post-rewrite" && + echo "cat >actual" | write_script .git/hooks/post-rewrite && + + test_tick && + git rebase -i --autosquash -r HEAD^^^ && + printf "%s %s\n%s %s\n%s %s\n%s %s\n" >expect $(git rev-parse \ + $fixup^^2 HEAD^2 \ + $fixup^^ HEAD^ \ + $fixup^ HEAD \ + $fixup HEAD) && + test_cmp expect actual +' + +test_expect_success 'refuse to merge ancestors of HEAD' ' + echo "merge HEAD^" >script-from-scratch && + test_config -C wt sequence.editor \""$PWD"/replace-editor.sh\" && + before="$(git rev-parse HEAD)" && + git rebase -i HEAD && + test_cmp_rev HEAD $before +' + +test_expect_success 'root commits' ' + git checkout --orphan unrelated && + (GIT_AUTHOR_NAME="Parsnip" GIT_AUTHOR_EMAIL="root@example.com" \ + test_commit second-root) && + test_commit third-root && + cat >script-from-scratch <<-\EOF && + pick third-root + label first-branch + reset [new root] + pick second-root + merge first-branch # Merge the 3rd root + EOF + test_config sequence.editor \""$PWD"/replace-editor.sh\" && + test_tick && + git rebase -i --force --root -r && + test "Parsnip" = "$(git show -s --format=%an HEAD^)" && + test $(git rev-parse second-root^0) != $(git rev-parse HEAD^) && + test $(git rev-parse second-root:second-root.t) = \ + $(git rev-parse HEAD^:second-root.t) && + test_cmp_graph HEAD <<-\EOF && + * Merge the 3rd root + |\ + | * third-root + * second-root + EOF + + : fast forward if possible && + before="$(git rev-parse --verify HEAD)" && + test_might_fail git config --unset sequence.editor && + test_tick && + git rebase -i --root -r && + test_cmp_rev HEAD $before +' + +test_expect_success 'a "merge" into a root commit is a fast-forward' ' + head=$(git rev-parse HEAD) && + cat >script-from-scratch <<-EOF && + reset [new root] + merge $head + EOF + test_config sequence.editor \""$PWD"/replace-editor.sh\" && + test_tick && + git rebase -i -r HEAD^ && + test_cmp_rev HEAD $head +' + +test_expect_success 'A root commit can be a cousin, treat it that way' ' + git checkout --orphan khnum && + test_commit yama && + git checkout -b asherah master && + test_commit shamkat && + git merge --allow-unrelated-histories khnum && + test_tick && + git rebase -f -r HEAD^ && + ! test_cmp_rev HEAD^2 khnum && + test_cmp_graph HEAD^.. <<-\EOF && + * Merge branch '\''khnum'\'' into asherah + |\ + | * yama + o shamkat + EOF + test_tick && + git rebase --rebase-merges=rebase-cousins HEAD^ && + test_cmp_graph HEAD^.. <<-\EOF + * Merge branch '\''khnum'\'' into asherah + |\ + | * yama + |/ + o shamkat + EOF +' + +test_done diff --git a/t/t3501-revert-cherry-pick.sh b/t/t3501-revert-cherry-pick.sh index ccbc118514..d1c68af8c5 100755 --- a/t/t3501-revert-cherry-pick.sh +++ b/t/t3501-revert-cherry-pick.sh @@ -141,7 +141,7 @@ test_expect_success 'cherry-pick "-" works with arguments' ' test_cmp expect actual ' -test_expect_failure 'cherry-pick works with dirty renamed file' ' +test_expect_success 'cherry-pick works with dirty renamed file' ' test_commit to-rename && git checkout -b unrelated && test_commit unrelated && @@ -150,9 +150,8 @@ test_expect_failure 'cherry-pick works with dirty renamed file' ' test_tick && git commit -m renamed && echo modified >renamed && - test_must_fail git cherry-pick refs/heads/unrelated >out && - test_i18ngrep "Refusing to lose dirty file at renamed" out && - test $(git rev-parse :0:renamed) = $(git rev-parse HEAD^:to-rename.t) && + git cherry-pick refs/heads/unrelated >out && + test $(git rev-parse :0:renamed) = $(git rev-parse HEAD~2:to-rename.t) && grep -q "^modified$" renamed ' diff --git a/t/t4001-diff-rename.sh b/t/t4001-diff-rename.sh index a07816d560..bf4030371a 100755 --- a/t/t4001-diff-rename.sh +++ b/t/t4001-diff-rename.sh @@ -138,6 +138,18 @@ test_expect_success 'favour same basenames over different ones' ' test_i18ngrep "renamed: .*path1 -> subdir/path1" out ' +test_expect_success 'test diff.renames=true for git status' ' + git -c diff.renames=true status >out && + test_i18ngrep "renamed: .*path1 -> subdir/path1" out +' + +test_expect_success 'test diff.renames=false for git status' ' + git -c diff.renames=false status >out && + test_i18ngrep ! "renamed: .*path1 -> subdir/path1" out && + test_i18ngrep "new file: .*subdir/path1" out && + test_i18ngrep "deleted: .*[^/]path1" out +' + test_expect_success 'favour same basenames even with minor differences' ' git show HEAD:path1 | sed "s/15/16/" > subdir/path1 && git status >out && diff --git a/t/t4014-format-patch.sh b/t/t4014-format-patch.sh index 482112ca33..6ea08fd5e9 100755 --- a/t/t4014-format-patch.sh +++ b/t/t4014-format-patch.sh @@ -1661,6 +1661,15 @@ test_expect_success 'format-patch --base with --attach' ' test_write_lines 1 2 >expect && test_cmp expect actual ' +test_expect_success 'format-patch --attach cover-letter only is non-multipart' ' + test_when_finished "rm -fr patches" && + git format-patch -o patches --cover-letter --attach=mimemime --base=HEAD~ -1 && + ! egrep "^--+mimemime" patches/0000*.patch && + egrep "^--+mimemime$" patches/0001*.patch >output && + test_line_count = 2 output && + egrep "^--+mimemime--$" patches/0001*.patch >output && + test_line_count = 1 output +' test_expect_success 'format-patch --pretty=mboxrd' ' sp=" " && diff --git a/t/t5300-pack-object.sh b/t/t5300-pack-object.sh index 65ff60f2ee..54eff03851 100755 --- a/t/t5300-pack-object.sh +++ b/t/t5300-pack-object.sh @@ -457,6 +457,11 @@ test_expect_success !PTHREADS,C_LOCALE_OUTPUT 'pack-objects --threads=N or pack. grep -F "no threads support, ignoring pack.threads" err ' +test_expect_success 'pack-objects in too-many-packs mode' ' + GIT_TEST_FULL_IN_PACK_ARRAY=1 git repack -ad && + git fsck +' + # # WARNING! # diff --git a/t/t5304-prune.sh b/t/t5304-prune.sh index f0f6e2a5f3..f20f03c103 100755 --- a/t/t5304-prune.sh +++ b/t/t5304-prune.sh @@ -320,4 +320,14 @@ test_expect_success 'prune: handle HEAD reflog in multiple worktrees' ' test_cmp expected actual ' +test_expect_success 'prune: handle expire option correctly' ' + test_must_fail git prune --expire 2>error && + test_i18ngrep "requires a value" error && + + test_must_fail git prune --expire=nyah 2>error && + test_i18ngrep "malformed expiration" error && + + git prune --no-expire +' + test_done diff --git a/t/t5310-pack-bitmaps.sh b/t/t5310-pack-bitmaps.sh index f6d600fd82..423c0a475f 100755 --- a/t/t5310-pack-bitmaps.sh +++ b/t/t5310-pack-bitmaps.sh @@ -264,9 +264,9 @@ test_expect_success 'pack with missing parent' ' ' test_expect_success JGIT 'we can read jgit bitmaps' ' - git clone . compat-jgit && + git clone --bare . compat-jgit.git && ( - cd compat-jgit && + cd compat-jgit.git && rm -f .git/objects/pack/*.bitmap && jgit gc && git rev-list --test-bitmap HEAD @@ -274,9 +274,9 @@ test_expect_success JGIT 'we can read jgit bitmaps' ' ' test_expect_success JGIT 'jgit can read our bitmaps' ' - git clone . compat-us && + git clone --bare . compat-us.git && ( - cd compat-us && + cd compat-us.git && git repack -adb && # jgit gc will barf if it does not like our bitmaps jgit gc diff --git a/t/t5318-commit-graph.sh b/t/t5318-commit-graph.sh new file mode 100755 index 0000000000..a380419b65 --- /dev/null +++ b/t/t5318-commit-graph.sh @@ -0,0 +1,224 @@ +#!/bin/sh + +test_description='commit graph' +. ./test-lib.sh + +test_expect_success 'setup full repo' ' + mkdir full && + cd "$TRASH_DIRECTORY/full" && + git init && + git config core.commitGraph true && + objdir=".git/objects" +' + +test_expect_success 'write graph with no packs' ' + cd "$TRASH_DIRECTORY/full" && + git commit-graph write --object-dir . && + test_path_is_file info/commit-graph +' + +test_expect_success 'create commits and repack' ' + cd "$TRASH_DIRECTORY/full" && + for i in $(test_seq 3) + do + test_commit $i && + git branch commits/$i + done && + git repack +' + +graph_git_two_modes() { + git -c core.graph=true $1 >output + git -c core.graph=false $1 >expect + test_cmp output expect +} + +graph_git_behavior() { + MSG=$1 + DIR=$2 + BRANCH=$3 + COMPARE=$4 + test_expect_success "check normal git operations: $MSG" ' + cd "$TRASH_DIRECTORY/$DIR" && + graph_git_two_modes "log --oneline $BRANCH" && + graph_git_two_modes "log --topo-order $BRANCH" && + graph_git_two_modes "log --graph $COMPARE..$BRANCH" && + graph_git_two_modes "branch -vv" && + graph_git_two_modes "merge-base -a $BRANCH $COMPARE" + ' +} + +graph_git_behavior 'no graph' full commits/3 commits/1 + +graph_read_expect() { + OPTIONAL="" + NUM_CHUNKS=3 + if test ! -z $2 + then + OPTIONAL=" $2" + NUM_CHUNKS=$((3 + $(echo "$2" | wc -w))) + fi + cat >expect <<- EOF + header: 43475048 1 1 $NUM_CHUNKS 0 + num_commits: $1 + chunks: oid_fanout oid_lookup commit_metadata$OPTIONAL + EOF + git commit-graph read >output && + test_cmp expect output +} + +test_expect_success 'write graph' ' + cd "$TRASH_DIRECTORY/full" && + graph1=$(git commit-graph write) && + test_path_is_file $objdir/info/commit-graph && + graph_read_expect "3" +' + +graph_git_behavior 'graph exists' full commits/3 commits/1 + +test_expect_success 'Add more commits' ' + cd "$TRASH_DIRECTORY/full" && + git reset --hard commits/1 && + for i in $(test_seq 4 5) + do + test_commit $i && + git branch commits/$i + done && + git reset --hard commits/2 && + for i in $(test_seq 6 7) + do + test_commit $i && + git branch commits/$i + done && + git reset --hard commits/2 && + git merge commits/4 && + git branch merge/1 && + git reset --hard commits/4 && + git merge commits/6 && + git branch merge/2 && + git reset --hard commits/3 && + git merge commits/5 commits/7 && + git branch merge/3 && + git repack +' + +# Current graph structure: +# +# __M3___ +# / | \ +# 3 M1 5 M2 7 +# |/ \|/ \| +# 2 4 6 +# |___/____/ +# 1 + +test_expect_success 'write graph with merges' ' + cd "$TRASH_DIRECTORY/full" && + git commit-graph write && + test_path_is_file $objdir/info/commit-graph && + graph_read_expect "10" "large_edges" +' + +graph_git_behavior 'merge 1 vs 2' full merge/1 merge/2 +graph_git_behavior 'merge 1 vs 3' full merge/1 merge/3 +graph_git_behavior 'merge 2 vs 3' full merge/2 merge/3 + +test_expect_success 'Add one more commit' ' + cd "$TRASH_DIRECTORY/full" && + test_commit 8 && + git branch commits/8 && + ls $objdir/pack | grep idx >existing-idx && + git repack && + ls $objdir/pack| grep idx | grep -v --file=existing-idx >new-idx +' + +# Current graph structure: +# +# 8 +# | +# __M3___ +# / | \ +# 3 M1 5 M2 7 +# |/ \|/ \| +# 2 4 6 +# |___/____/ +# 1 + +graph_git_behavior 'mixed mode, commit 8 vs merge 1' full commits/8 merge/1 +graph_git_behavior 'mixed mode, commit 8 vs merge 2' full commits/8 merge/2 + +test_expect_success 'write graph with new commit' ' + cd "$TRASH_DIRECTORY/full" && + git commit-graph write && + test_path_is_file $objdir/info/commit-graph && + graph_read_expect "11" "large_edges" +' + +graph_git_behavior 'full graph, commit 8 vs merge 1' full commits/8 merge/1 +graph_git_behavior 'full graph, commit 8 vs merge 2' full commits/8 merge/2 + +test_expect_success 'write graph with nothing new' ' + cd "$TRASH_DIRECTORY/full" && + git commit-graph write && + test_path_is_file $objdir/info/commit-graph && + graph_read_expect "11" "large_edges" +' + +graph_git_behavior 'cleared graph, commit 8 vs merge 1' full commits/8 merge/1 +graph_git_behavior 'cleared graph, commit 8 vs merge 2' full commits/8 merge/2 + +test_expect_success 'build graph from latest pack with closure' ' + cd "$TRASH_DIRECTORY/full" && + cat new-idx | git commit-graph write --stdin-packs && + test_path_is_file $objdir/info/commit-graph && + graph_read_expect "9" "large_edges" +' + +graph_git_behavior 'graph from pack, commit 8 vs merge 1' full commits/8 merge/1 +graph_git_behavior 'graph from pack, commit 8 vs merge 2' full commits/8 merge/2 + +test_expect_success 'build graph from commits with closure' ' + cd "$TRASH_DIRECTORY/full" && + git tag -a -m "merge" tag/merge merge/2 && + git rev-parse tag/merge >commits-in && + git rev-parse merge/1 >>commits-in && + cat commits-in | git commit-graph write --stdin-commits && + test_path_is_file $objdir/info/commit-graph && + graph_read_expect "6" +' + +graph_git_behavior 'graph from commits, commit 8 vs merge 1' full commits/8 merge/1 +graph_git_behavior 'graph from commits, commit 8 vs merge 2' full commits/8 merge/2 + +test_expect_success 'build graph from commits with append' ' + cd "$TRASH_DIRECTORY/full" && + git rev-parse merge/3 | git commit-graph write --stdin-commits --append && + test_path_is_file $objdir/info/commit-graph && + graph_read_expect "10" "large_edges" +' + +graph_git_behavior 'append graph, commit 8 vs merge 1' full commits/8 merge/1 +graph_git_behavior 'append graph, commit 8 vs merge 2' full commits/8 merge/2 + +test_expect_success 'setup bare repo' ' + cd "$TRASH_DIRECTORY" && + git clone --bare --no-local full bare && + cd bare && + git config core.commitGraph true && + baredir="./objects" +' + +graph_git_behavior 'bare repo, commit 8 vs merge 1' bare commits/8 merge/1 +graph_git_behavior 'bare repo, commit 8 vs merge 2' bare commits/8 merge/2 + +test_expect_success 'write graph in bare repo' ' + cd "$TRASH_DIRECTORY/bare" && + git commit-graph write && + test_path_is_file $baredir/info/commit-graph && + graph_read_expect "11" "large_edges" +' + +graph_git_behavior 'bare repo with graph, commit 8 vs merge 1' bare commits/8 merge/1 +graph_git_behavior 'bare repo with graph, commit 8 vs merge 2' bare commits/8 merge/2 + +test_done diff --git a/t/t5512-ls-remote.sh b/t/t5512-ls-remote.sh index 02106c9226..6a949484d0 100755 --- a/t/t5512-ls-remote.sh +++ b/t/t5512-ls-remote.sh @@ -10,6 +10,9 @@ test_expect_success setup ' test_tick && git commit -m initial && git tag mark && + git tag mark1.1 && + git tag mark1.2 && + git tag mark1.10 && git show-ref --tags -d | sed -e "s/ / /" >expected.tag && ( echo "$(git rev-parse HEAD) HEAD" @@ -39,6 +42,39 @@ test_expect_success 'ls-remote self' ' test_cmp expected.all actual ' +test_expect_success 'ls-remote --sort="version:refname" --tags self' ' + cat >expect <<-EOF && + $(git rev-parse mark) refs/tags/mark + $(git rev-parse mark1.1) refs/tags/mark1.1 + $(git rev-parse mark1.2) refs/tags/mark1.2 + $(git rev-parse mark1.10) refs/tags/mark1.10 + EOF + git ls-remote --sort="version:refname" --tags self >actual && + test_cmp expect actual +' + +test_expect_success 'ls-remote --sort="-version:refname" --tags self' ' + cat >expect <<-EOF && + $(git rev-parse mark1.10) refs/tags/mark1.10 + $(git rev-parse mark1.2) refs/tags/mark1.2 + $(git rev-parse mark1.1) refs/tags/mark1.1 + $(git rev-parse mark) refs/tags/mark + EOF + git ls-remote --sort="-version:refname" --tags self >actual && + test_cmp expect actual +' + +test_expect_success 'ls-remote --sort="-refname" --tags self' ' + cat >expect <<-EOF && + $(git rev-parse mark1.2) refs/tags/mark1.2 + $(git rev-parse mark1.10) refs/tags/mark1.10 + $(git rev-parse mark1.1) refs/tags/mark1.1 + $(git rev-parse mark) refs/tags/mark + EOF + git ls-remote --sort="-refname" --tags self >actual && + test_cmp expect actual +' + test_expect_success 'dies when no remote specified and no default remotes found' ' test_must_fail git ls-remote ' @@ -131,7 +167,7 @@ test_expect_success 'Report no-match with --exit-code' ' test_expect_success 'Report match with --exit-code' ' git ls-remote --exit-code other.git "refs/tags/*" >actual && - git ls-remote . tags/mark >expect && + git ls-remote . tags/mark* >expect && test_cmp expect actual ' @@ -171,13 +207,17 @@ test_expect_success 'overrides work between mixed transfer/upload-pack hideRefs' ' test_expect_success 'ls-remote --symref' ' - cat >expect <<-\EOF && + git fetch origin && + cat >expect <<-EOF && ref: refs/heads/master HEAD - 1bd44cb9d13204b0fe1958db0082f5028a16eb3a HEAD - 1bd44cb9d13204b0fe1958db0082f5028a16eb3a refs/heads/master - 1bd44cb9d13204b0fe1958db0082f5028a16eb3a refs/remotes/origin/HEAD - 1bd44cb9d13204b0fe1958db0082f5028a16eb3a refs/remotes/origin/master - 1bd44cb9d13204b0fe1958db0082f5028a16eb3a refs/tags/mark + $(git rev-parse HEAD) HEAD + $(git rev-parse refs/heads/master) refs/heads/master + $(git rev-parse HEAD) refs/remotes/origin/HEAD + $(git rev-parse refs/remotes/origin/master) refs/remotes/origin/master + $(git rev-parse refs/tags/mark) refs/tags/mark + $(git rev-parse refs/tags/mark1.1) refs/tags/mark1.1 + $(git rev-parse refs/tags/mark1.10) refs/tags/mark1.10 + $(git rev-parse refs/tags/mark1.2) refs/tags/mark1.2 EOF git ls-remote --symref >actual && test_cmp expect actual diff --git a/t/t5516-fetch-push.sh b/t/t5516-fetch-push.sh index 82239138d5..3e8940eee5 100755 --- a/t/t5516-fetch-push.sh +++ b/t/t5516-fetch-push.sh @@ -94,6 +94,9 @@ mk_child() { } check_push_result () { + test $# -ge 3 || + error "bug in the test script: check_push_result requires at least 3 parameters" + repo_name="$1" shift @@ -553,10 +556,7 @@ test_expect_success 'branch.*.pushremote config order is irrelevant' ' test_expect_success 'push with dry-run' ' mk_test testrepo heads/master && - ( - cd testrepo && - old_commit=$(git show-ref -s --verify refs/heads/master) - ) && + old_commit=$(git -C testrepo show-ref -s --verify refs/heads/master) && git push --dry-run testrepo : && check_push_result testrepo $old_commit heads/master ' @@ -612,7 +612,7 @@ test_expect_success 'push does not update local refs on failure' ' chmod +x testrepo/.git/hooks/pre-receive && ( cd child && - git pull .. master + git pull .. master && test_must_fail git push && test $(git rev-parse master) != \ $(git rev-parse remotes/origin/master) diff --git a/t/t5541-http-push-smart.sh b/t/t5541-http-push-smart.sh index 21340e89c9..a2af693068 100755 --- a/t/t5541-http-push-smart.sh +++ b/t/t5541-http-push-smart.sh @@ -377,5 +377,17 @@ test_expect_success 'push status output scrubs password' ' grep "^To $HTTPD_URL/smart/test_repo.git" status ' +test_expect_success 'colorize errors/hints' ' + cd "$ROOT_PATH"/test_repo_clone && + test_must_fail git -c color.transport=always -c color.advice=always \ + -c color.push=always \ + push origin origin/master^:master 2>act && + test_decode_color <act >decoded && + test_i18ngrep "<RED>.*rejected.*<RESET>" decoded && + test_i18ngrep "<RED>error: failed to push some refs" decoded && + test_i18ngrep "<YELLOW>hint: " decoded && + test_i18ngrep ! "^hint: " decoded +' + stop_httpd test_done diff --git a/t/t5550-http-fetch-dumb.sh b/t/t5550-http-fetch-dumb.sh index 8552184e74..6d7d88ccc9 100755 --- a/t/t5550-http-fetch-dumb.sh +++ b/t/t5550-http-fetch-dumb.sh @@ -169,6 +169,17 @@ test_expect_success 'fetch changes via manual http-fetch' ' test_cmp file clone2/file ' +test_expect_success 'manual http-fetch without -a works just as well' ' + cp -R clone-tmpl clone3 && + + HEAD=$(git rev-parse --verify HEAD) && + (cd clone3 && + git http-fetch -w heads/master-new $HEAD $(git config remote.origin.url) && + git checkout master-new && + test $HEAD = $(git rev-parse --verify HEAD)) && + test_cmp file clone3/file +' + test_expect_success 'http remote detects correct HEAD' ' git push public master:other && (cd clone && diff --git a/t/t5701-git-serve.sh b/t/t5701-git-serve.sh new file mode 100755 index 0000000000..011a5796db --- /dev/null +++ b/t/t5701-git-serve.sh @@ -0,0 +1,197 @@ +#!/bin/sh + +test_description='test git-serve and server commands' + +. ./test-lib.sh + +test_expect_success 'test capability advertisement' ' + cat >expect <<-EOF && + version 2 + agent=git/$(git version | cut -d" " -f3) + ls-refs + fetch=shallow + server-option + 0000 + EOF + + git serve --advertise-capabilities >out && + test-pkt-line unpack <out >actual && + test_cmp actual expect +' + +test_expect_success 'stateless-rpc flag does not list capabilities' ' + # Empty request + test-pkt-line pack >in <<-EOF && + 0000 + EOF + git serve --stateless-rpc >out <in && + test_must_be_empty out && + + # EOF + git serve --stateless-rpc >out && + test_must_be_empty out +' + +test_expect_success 'request invalid capability' ' + test-pkt-line pack >in <<-EOF && + foobar + 0000 + EOF + test_must_fail git serve --stateless-rpc 2>err <in && + test_i18ngrep "unknown capability" err +' + +test_expect_success 'request with no command' ' + test-pkt-line pack >in <<-EOF && + agent=git/test + 0000 + EOF + test_must_fail git serve --stateless-rpc 2>err <in && + test_i18ngrep "no command requested" err +' + +test_expect_success 'request invalid command' ' + test-pkt-line pack >in <<-EOF && + command=foo + agent=git/test + 0000 + EOF + test_must_fail git serve --stateless-rpc 2>err <in && + test_i18ngrep "invalid command" err +' + +# Test the basics of ls-refs +# +test_expect_success 'setup some refs and tags' ' + test_commit one && + git branch dev master && + test_commit two && + git symbolic-ref refs/heads/release refs/heads/master && + git tag -a -m "annotated tag" annotated-tag +' + +test_expect_success 'basics of ls-refs' ' + test-pkt-line pack >in <<-EOF && + command=ls-refs + 0000 + EOF + + cat >expect <<-EOF && + $(git rev-parse HEAD) HEAD + $(git rev-parse refs/heads/dev) refs/heads/dev + $(git rev-parse refs/heads/master) refs/heads/master + $(git rev-parse refs/heads/release) refs/heads/release + $(git rev-parse refs/tags/annotated-tag) refs/tags/annotated-tag + $(git rev-parse refs/tags/one) refs/tags/one + $(git rev-parse refs/tags/two) refs/tags/two + 0000 + EOF + + git serve --stateless-rpc <in >out && + test-pkt-line unpack <out >actual && + test_cmp actual expect +' + +test_expect_success 'basic ref-prefixes' ' + test-pkt-line pack >in <<-EOF && + command=ls-refs + 0001 + ref-prefix refs/heads/master + ref-prefix refs/tags/one + 0000 + EOF + + cat >expect <<-EOF && + $(git rev-parse refs/heads/master) refs/heads/master + $(git rev-parse refs/tags/one) refs/tags/one + 0000 + EOF + + git serve --stateless-rpc <in >out && + test-pkt-line unpack <out >actual && + test_cmp actual expect +' + +test_expect_success 'refs/heads prefix' ' + test-pkt-line pack >in <<-EOF && + command=ls-refs + 0001 + ref-prefix refs/heads/ + 0000 + EOF + + cat >expect <<-EOF && + $(git rev-parse refs/heads/dev) refs/heads/dev + $(git rev-parse refs/heads/master) refs/heads/master + $(git rev-parse refs/heads/release) refs/heads/release + 0000 + EOF + + git serve --stateless-rpc <in >out && + test-pkt-line unpack <out >actual && + test_cmp actual expect +' + +test_expect_success 'peel parameter' ' + test-pkt-line pack >in <<-EOF && + command=ls-refs + 0001 + peel + ref-prefix refs/tags/ + 0000 + EOF + + cat >expect <<-EOF && + $(git rev-parse refs/tags/annotated-tag) refs/tags/annotated-tag peeled:$(git rev-parse refs/tags/annotated-tag^{}) + $(git rev-parse refs/tags/one) refs/tags/one + $(git rev-parse refs/tags/two) refs/tags/two + 0000 + EOF + + git serve --stateless-rpc <in >out && + test-pkt-line unpack <out >actual && + test_cmp actual expect +' + +test_expect_success 'symrefs parameter' ' + test-pkt-line pack >in <<-EOF && + command=ls-refs + 0001 + symrefs + ref-prefix refs/heads/ + 0000 + EOF + + cat >expect <<-EOF && + $(git rev-parse refs/heads/dev) refs/heads/dev + $(git rev-parse refs/heads/master) refs/heads/master + $(git rev-parse refs/heads/release) refs/heads/release symref-target:refs/heads/master + 0000 + EOF + + git serve --stateless-rpc <in >out && + test-pkt-line unpack <out >actual && + test_cmp actual expect +' + +test_expect_success 'sending server-options' ' + test-pkt-line pack >in <<-EOF && + command=ls-refs + server-option=hello + server-option=world + 0001 + ref-prefix HEAD + 0000 + EOF + + cat >expect <<-EOF && + $(git rev-parse HEAD) HEAD + 0000 + EOF + + git serve --stateless-rpc <in >out && + test-pkt-line unpack <out >actual && + test_cmp actual expect +' + +test_done diff --git a/t/t5702-protocol-v2.sh b/t/t5702-protocol-v2.sh new file mode 100755 index 0000000000..dbfd0691c0 --- /dev/null +++ b/t/t5702-protocol-v2.sh @@ -0,0 +1,305 @@ +#!/bin/sh + +test_description='test git wire-protocol version 2' + +TEST_NO_CREATE_REPO=1 + +. ./test-lib.sh + +# Test protocol v2 with 'git://' transport +# +. "$TEST_DIRECTORY"/lib-git-daemon.sh +start_git_daemon --export-all --enable=receive-pack +daemon_parent=$GIT_DAEMON_DOCUMENT_ROOT_PATH/parent + +test_expect_success 'create repo to be served by git-daemon' ' + git init "$daemon_parent" && + test_commit -C "$daemon_parent" one +' + +test_expect_success 'list refs with git:// using protocol v2' ' + test_when_finished "rm -f log" && + + GIT_TRACE_PACKET="$(pwd)/log" git -c protocol.version=2 \ + ls-remote --symref "$GIT_DAEMON_URL/parent" >actual && + + # Client requested to use protocol v2 + grep "git> .*\\\0\\\0version=2\\\0$" log && + # Server responded using protocol v2 + grep "git< version 2" log && + + git ls-remote --symref "$GIT_DAEMON_URL/parent" >expect && + test_cmp actual expect +' + +test_expect_success 'ref advertisment is filtered with ls-remote using protocol v2' ' + test_when_finished "rm -f log" && + + GIT_TRACE_PACKET="$(pwd)/log" git -c protocol.version=2 \ + ls-remote "$GIT_DAEMON_URL/parent" master >actual && + + cat >expect <<-EOF && + $(git -C "$daemon_parent" rev-parse refs/heads/master)$(printf "\t")refs/heads/master + EOF + + test_cmp actual expect +' + +test_expect_success 'clone with git:// using protocol v2' ' + test_when_finished "rm -f log" && + + GIT_TRACE_PACKET="$(pwd)/log" git -c protocol.version=2 \ + clone "$GIT_DAEMON_URL/parent" daemon_child && + + git -C daemon_child log -1 --format=%s >actual && + git -C "$daemon_parent" log -1 --format=%s >expect && + test_cmp expect actual && + + # Client requested to use protocol v2 + grep "clone> .*\\\0\\\0version=2\\\0$" log && + # Server responded using protocol v2 + grep "clone< version 2" log +' + +test_expect_success 'fetch with git:// using protocol v2' ' + test_when_finished "rm -f log" && + + test_commit -C "$daemon_parent" two && + + GIT_TRACE_PACKET="$(pwd)/log" git -C daemon_child -c protocol.version=2 \ + fetch && + + git -C daemon_child log -1 --format=%s origin/master >actual && + git -C "$daemon_parent" log -1 --format=%s >expect && + test_cmp expect actual && + + # Client requested to use protocol v2 + grep "fetch> .*\\\0\\\0version=2\\\0$" log && + # Server responded using protocol v2 + grep "fetch< version 2" log +' + +test_expect_success 'pull with git:// using protocol v2' ' + test_when_finished "rm -f log" && + + GIT_TRACE_PACKET="$(pwd)/log" git -C daemon_child -c protocol.version=2 \ + pull && + + git -C daemon_child log -1 --format=%s >actual && + git -C "$daemon_parent" log -1 --format=%s >expect && + test_cmp expect actual && + + # Client requested to use protocol v2 + grep "fetch> .*\\\0\\\0version=2\\\0$" log && + # Server responded using protocol v2 + grep "fetch< version 2" log +' + +test_expect_success 'push with git:// and a config of v2 does not request v2' ' + test_when_finished "rm -f log" && + + # Till v2 for push is designed, make sure that if a client has + # protocol.version configured to use v2, that the client instead falls + # back and uses v0. + + test_commit -C daemon_child three && + + # Push to another branch, as the target repository has the + # master branch checked out and we cannot push into it. + GIT_TRACE_PACKET="$(pwd)/log" git -C daemon_child -c protocol.version=2 \ + push origin HEAD:client_branch && + + git -C daemon_child log -1 --format=%s >actual && + git -C "$daemon_parent" log -1 --format=%s client_branch >expect && + test_cmp expect actual && + + # Client requested to use protocol v2 + ! grep "push> .*\\\0\\\0version=2\\\0$" log && + # Server responded using protocol v2 + ! grep "push< version 2" log +' + +stop_git_daemon + +# Test protocol v2 with 'file://' transport +# +test_expect_success 'create repo to be served by file:// transport' ' + git init file_parent && + test_commit -C file_parent one +' + +test_expect_success 'list refs with file:// using protocol v2' ' + test_when_finished "rm -f log" && + + GIT_TRACE_PACKET="$(pwd)/log" git -c protocol.version=2 \ + ls-remote --symref "file://$(pwd)/file_parent" >actual && + + # Server responded using protocol v2 + grep "git< version 2" log && + + git ls-remote --symref "file://$(pwd)/file_parent" >expect && + test_cmp actual expect +' + +test_expect_success 'ref advertisment is filtered with ls-remote using protocol v2' ' + test_when_finished "rm -f log" && + + GIT_TRACE_PACKET="$(pwd)/log" git -c protocol.version=2 \ + ls-remote "file://$(pwd)/file_parent" master >actual && + + cat >expect <<-EOF && + $(git -C file_parent rev-parse refs/heads/master)$(printf "\t")refs/heads/master + EOF + + test_cmp actual expect +' + +test_expect_success 'server-options are sent when using ls-remote' ' + test_when_finished "rm -f log" && + + GIT_TRACE_PACKET="$(pwd)/log" git -c protocol.version=2 \ + ls-remote -o hello -o world "file://$(pwd)/file_parent" master >actual && + + cat >expect <<-EOF && + $(git -C file_parent rev-parse refs/heads/master)$(printf "\t")refs/heads/master + EOF + + test_cmp actual expect && + grep "server-option=hello" log && + grep "server-option=world" log +' + + +test_expect_success 'clone with file:// using protocol v2' ' + test_when_finished "rm -f log" && + + GIT_TRACE_PACKET="$(pwd)/log" git -c protocol.version=2 \ + clone "file://$(pwd)/file_parent" file_child && + + git -C file_child log -1 --format=%s >actual && + git -C file_parent log -1 --format=%s >expect && + test_cmp expect actual && + + # Server responded using protocol v2 + grep "clone< version 2" log +' + +test_expect_success 'fetch with file:// using protocol v2' ' + test_when_finished "rm -f log" && + + test_commit -C file_parent two && + + GIT_TRACE_PACKET="$(pwd)/log" git -C file_child -c protocol.version=2 \ + fetch origin && + + git -C file_child log -1 --format=%s origin/master >actual && + git -C file_parent log -1 --format=%s >expect && + test_cmp expect actual && + + # Server responded using protocol v2 + grep "fetch< version 2" log +' + +test_expect_success 'ref advertisment is filtered during fetch using protocol v2' ' + test_when_finished "rm -f log" && + + test_commit -C file_parent three && + + GIT_TRACE_PACKET="$(pwd)/log" git -C file_child -c protocol.version=2 \ + fetch origin master && + + git -C file_child log -1 --format=%s origin/master >actual && + git -C file_parent log -1 --format=%s >expect && + test_cmp expect actual && + + ! grep "refs/tags/one" log && + ! grep "refs/tags/two" log && + ! grep "refs/tags/three" log +' + +test_expect_success 'server-options are sent when fetching' ' + test_when_finished "rm -f log" && + + test_commit -C file_parent four && + + GIT_TRACE_PACKET="$(pwd)/log" git -C file_child -c protocol.version=2 \ + fetch -o hello -o world origin master && + + git -C file_child log -1 --format=%s origin/master >actual && + git -C file_parent log -1 --format=%s >expect && + test_cmp expect actual && + + grep "server-option=hello" log && + grep "server-option=world" log +' + +# Test protocol v2 with 'http://' transport +# +. "$TEST_DIRECTORY"/lib-httpd.sh +start_httpd + +test_expect_success 'create repo to be served by http:// transport' ' + git init "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" && + git -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" config http.receivepack true && + test_commit -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" one +' + +test_expect_success 'clone with http:// using protocol v2' ' + test_when_finished "rm -f log" && + + GIT_TRACE_PACKET="$(pwd)/log" GIT_TRACE_CURL="$(pwd)/log" git -c protocol.version=2 \ + clone "$HTTPD_URL/smart/http_parent" http_child && + + git -C http_child log -1 --format=%s >actual && + git -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" log -1 --format=%s >expect && + test_cmp expect actual && + + # Client requested to use protocol v2 + grep "Git-Protocol: version=2" log && + # Server responded using protocol v2 + grep "git< version 2" log +' + +test_expect_success 'fetch with http:// using protocol v2' ' + test_when_finished "rm -f log" && + + test_commit -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" two && + + GIT_TRACE_PACKET="$(pwd)/log" git -C http_child -c protocol.version=2 \ + fetch && + + git -C http_child log -1 --format=%s origin/master >actual && + git -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" log -1 --format=%s >expect && + test_cmp expect actual && + + # Server responded using protocol v2 + grep "git< version 2" log +' + +test_expect_success 'push with http:// and a config of v2 does not request v2' ' + test_when_finished "rm -f log" && + # Till v2 for push is designed, make sure that if a client has + # protocol.version configured to use v2, that the client instead falls + # back and uses v0. + + test_commit -C http_child three && + + # Push to another branch, as the target repository has the + # master branch checked out and we cannot push into it. + GIT_TRACE_PACKET="$(pwd)/log" git -C http_child -c protocol.version=2 \ + push origin HEAD:client_branch && + + git -C http_child log -1 --format=%s >actual && + git -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" log -1 --format=%s client_branch >expect && + test_cmp expect actual && + + # Client didnt request to use protocol v2 + ! grep "Git-Protocol: version=2" log && + # Server didnt respond using protocol v2 + ! grep "git< version 2" log +' + + +stop_httpd + +test_done diff --git a/t/t6001-rev-list-graft.sh b/t/t6001-rev-list-graft.sh index 05ddc69cf2..7504ba4751 100755 --- a/t/t6001-rev-list-graft.sh +++ b/t/t6001-rev-list-graft.sh @@ -110,4 +110,13 @@ do " done + +test_expect_success 'show advice that grafts are deprecated' ' + git show HEAD 2>err && + test_i18ngrep "git replace" err && + test_config advice.graftFileDeprecated false && + git show HEAD 2>err && + test_i18ngrep ! "git replace" err +' + test_done diff --git a/t/t6022-merge-rename.sh b/t/t6022-merge-rename.sh index 48747e71df..b760c223c6 100755 --- a/t/t6022-merge-rename.sh +++ b/t/t6022-merge-rename.sh @@ -247,7 +247,7 @@ test_expect_success 'merge of identical changes in a renamed file' ' git reset --hard HEAD^ && git checkout change && GIT_MERGE_VERBOSITY=3 git merge change+rename >out && - test_i18ngrep "^Skipped B" out + test_i18ngrep ! "^Skipped B" out ' test_expect_success 'setup for rename + d/f conflicts' ' diff --git a/t/t6043-merge-rename-directories.sh b/t/t6043-merge-rename-directories.sh new file mode 100755 index 0000000000..2e28f2908d --- /dev/null +++ b/t/t6043-merge-rename-directories.sh @@ -0,0 +1,3998 @@ +#!/bin/sh + +test_description="recursive merge with directory renames" +# includes checking of many corner cases, with a similar methodology to: +# t6042: corner cases with renames but not criss-cross merges +# t6036: corner cases with both renames and criss-cross merges +# +# The setup for all of them, pictorially, is: +# +# A +# o +# / \ +# O o ? +# \ / +# o +# B +# +# To help make it easier to follow the flow of tests, they have been +# divided into sections and each test will start with a quick explanation +# of what commits O, A, and B contain. +# +# Notation: +# z/{b,c} means files z/b and z/c both exist +# x/d_1 means file x/d exists with content d1. (Purpose of the +# underscore notation is to differentiate different +# files that might be renamed into each other's paths.) + +. ./test-lib.sh + + +########################################################################### +# SECTION 1: Basic cases we should be able to handle +########################################################################### + +# Testcase 1a, Basic directory rename. +# Commit O: z/{b,c} +# Commit A: y/{b,c} +# Commit B: z/{b,c,d,e/f} +# Expected: y/{b,c,d,e/f} + +test_expect_success '1a-setup: Simple directory rename detection' ' + test_create_repo 1a && + ( + cd 1a && + + mkdir z && + echo b >z/b && + echo c >z/c && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z y && + test_tick && + git commit -m "A" && + + git checkout B && + echo d >z/d && + mkdir z/e && + echo f >z/e/f && + git add z/d z/e/f && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '1a-check: Simple directory rename detection' ' + ( + cd 1a && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 4 out && + + git rev-parse >actual \ + HEAD:y/b HEAD:y/c HEAD:y/d HEAD:y/e/f && + git rev-parse >expect \ + O:z/b O:z/c B:z/d B:z/e/f && + test_cmp expect actual && + + git hash-object y/d >actual && + git rev-parse B:z/d >expect && + test_cmp expect actual && + + test_must_fail git rev-parse HEAD:z/d && + test_must_fail git rev-parse HEAD:z/e/f && + test_path_is_missing z/d && + test_path_is_missing z/e/f + ) +' + +# Testcase 1b, Merge a directory with another +# Commit O: z/{b,c}, y/d +# Commit A: z/{b,c,e}, y/d +# Commit B: y/{b,c,d} +# Expected: y/{b,c,d,e} + +test_expect_success '1b-setup: Merge a directory with another' ' + test_create_repo 1b && + ( + cd 1b && + + mkdir z && + echo b >z/b && + echo c >z/c && + mkdir y && + echo d >y/d && + git add z y && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + echo e >z/e && + git add z/e && + test_tick && + git commit -m "A" && + + git checkout B && + git mv z/b y && + git mv z/c y && + rmdir z && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '1b-check: Merge a directory with another' ' + ( + cd 1b && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 4 out && + + git rev-parse >actual \ + HEAD:y/b HEAD:y/c HEAD:y/d HEAD:y/e && + git rev-parse >expect \ + O:z/b O:z/c O:y/d A:z/e && + test_cmp expect actual && + test_must_fail git rev-parse HEAD:z/e + ) +' + +# Testcase 1c, Transitive renaming +# (Related to testcases 3a and 6d -- when should a transitive rename apply?) +# (Related to testcases 9c and 9d -- can transitivity repeat?) +# (Related to testcase 12b -- joint-transitivity?) +# Commit O: z/{b,c}, x/d +# Commit A: y/{b,c}, x/d +# Commit B: z/{b,c,d} +# Expected: y/{b,c,d} (because x/d -> z/d -> y/d) + +test_expect_success '1c-setup: Transitive renaming' ' + test_create_repo 1c && + ( + cd 1c && + + mkdir z && + echo b >z/b && + echo c >z/c && + mkdir x && + echo d >x/d && + git add z x && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z y && + test_tick && + git commit -m "A" && + + git checkout B && + git mv x/d z/d && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '1c-check: Transitive renaming' ' + ( + cd 1c && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 3 out && + + git rev-parse >actual \ + HEAD:y/b HEAD:y/c HEAD:y/d && + git rev-parse >expect \ + O:z/b O:z/c O:x/d && + test_cmp expect actual && + test_must_fail git rev-parse HEAD:x/d && + test_must_fail git rev-parse HEAD:z/d && + test_path_is_missing z/d + ) +' + +# Testcase 1d, Directory renames (merging two directories into one new one) +# cause a rename/rename(2to1) conflict +# (Related to testcases 1c and 7b) +# Commit O. z/{b,c}, y/{d,e} +# Commit A. x/{b,c}, y/{d,e,m,wham_1} +# Commit B. z/{b,c,n,wham_2}, x/{d,e} +# Expected: x/{b,c,d,e,m,n}, CONFLICT:(y/wham_1 & z/wham_2 -> x/wham) +# Note: y/m & z/n should definitely move into x. By the same token, both +# y/wham_1 & z/wham_2 should too...giving us a conflict. + +test_expect_success '1d-setup: Directory renames cause a rename/rename(2to1) conflict' ' + test_create_repo 1d && + ( + cd 1d && + + mkdir z && + echo b >z/b && + echo c >z/c && + mkdir y && + echo d >y/d && + echo e >y/e && + git add z y && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z x && + echo m >y/m && + echo wham1 >y/wham && + git add y && + test_tick && + git commit -m "A" && + + git checkout B && + git mv y x && + echo n >z/n && + echo wham2 >z/wham && + git add z && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '1d-check: Directory renames cause a rename/rename(2to1) conflict' ' + ( + cd 1d && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 >out && + test_i18ngrep "CONFLICT (rename/rename)" out && + + git ls-files -s >out && + test_line_count = 8 out && + git ls-files -u >out && + test_line_count = 2 out && + git ls-files -o >out && + test_line_count = 3 out && + + git rev-parse >actual \ + :0:x/b :0:x/c :0:x/d :0:x/e :0:x/m :0:x/n && + git rev-parse >expect \ + O:z/b O:z/c O:y/d O:y/e A:y/m B:z/n && + test_cmp expect actual && + + test_must_fail git rev-parse :0:x/wham && + git rev-parse >actual \ + :2:x/wham :3:x/wham && + git rev-parse >expect \ + A:y/wham B:z/wham && + test_cmp expect actual && + + test_path_is_missing x/wham && + test_path_is_file x/wham~HEAD && + test_path_is_file x/wham~B^0 && + + git hash-object >actual \ + x/wham~HEAD x/wham~B^0 && + git rev-parse >expect \ + A:y/wham B:z/wham && + test_cmp expect actual + ) +' + +# Testcase 1e, Renamed directory, with all filenames being renamed too +# (Related to testcases 9f & 9g) +# Commit O: z/{oldb,oldc} +# Commit A: y/{newb,newc} +# Commit B: z/{oldb,oldc,d} +# Expected: y/{newb,newc,d} + +test_expect_success '1e-setup: Renamed directory, with all files being renamed too' ' + test_create_repo 1e && + ( + cd 1e && + + mkdir z && + echo b >z/oldb && + echo c >z/oldc && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + mkdir y && + git mv z/oldb y/newb && + git mv z/oldc y/newc && + test_tick && + git commit -m "A" && + + git checkout B && + echo d >z/d && + git add z/d && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '1e-check: Renamed directory, with all files being renamed too' ' + ( + cd 1e && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 3 out && + + git rev-parse >actual \ + HEAD:y/newb HEAD:y/newc HEAD:y/d && + git rev-parse >expect \ + O:z/oldb O:z/oldc B:z/d && + test_cmp expect actual && + test_must_fail git rev-parse HEAD:z/d + ) +' + +# Testcase 1f, Split a directory into two other directories +# (Related to testcases 3a, all of section 2, and all of section 4) +# Commit O: z/{b,c,d,e,f} +# Commit A: z/{b,c,d,e,f,g} +# Commit B: y/{b,c}, x/{d,e,f} +# Expected: y/{b,c}, x/{d,e,f,g} + +test_expect_success '1f-setup: Split a directory into two other directories' ' + test_create_repo 1f && + ( + cd 1f && + + mkdir z && + echo b >z/b && + echo c >z/c && + echo d >z/d && + echo e >z/e && + echo f >z/f && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + echo g >z/g && + git add z/g && + test_tick && + git commit -m "A" && + + git checkout B && + mkdir y && + mkdir x && + git mv z/b y/ && + git mv z/c y/ && + git mv z/d x/ && + git mv z/e x/ && + git mv z/f x/ && + rmdir z && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '1f-check: Split a directory into two other directories' ' + ( + cd 1f && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 6 out && + + git rev-parse >actual \ + HEAD:y/b HEAD:y/c HEAD:x/d HEAD:x/e HEAD:x/f HEAD:x/g && + git rev-parse >expect \ + O:z/b O:z/c O:z/d O:z/e O:z/f A:z/g && + test_cmp expect actual && + test_path_is_missing z/g && + test_must_fail git rev-parse HEAD:z/g + ) +' + +########################################################################### +# Rules suggested by testcases in section 1: +# +# We should still detect the directory rename even if it wasn't just +# the directory renamed, but the files within it. (see 1b) +# +# If renames split a directory into two or more others, the directory +# with the most renames, "wins" (see 1c). However, see the testcases +# in section 2, plus testcases 3a and 4a. +########################################################################### + + +########################################################################### +# SECTION 2: Split into multiple directories, with equal number of paths +# +# Explore the splitting-a-directory rules a bit; what happens in the +# edge cases? +# +# Note that there is a closely related case of a directory not being +# split on either side of history, but being renamed differently on +# each side. See testcase 8e for that. +########################################################################### + +# Testcase 2a, Directory split into two on one side, with equal numbers of paths +# Commit O: z/{b,c} +# Commit A: y/b, w/c +# Commit B: z/{b,c,d} +# Expected: y/b, w/c, z/d, with warning about z/ -> (y/ vs. w/) conflict +test_expect_success '2a-setup: Directory split into two on one side, with equal numbers of paths' ' + test_create_repo 2a && + ( + cd 2a && + + mkdir z && + echo b >z/b && + echo c >z/c && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + mkdir y && + mkdir w && + git mv z/b y/ && + git mv z/c w/ && + test_tick && + git commit -m "A" && + + git checkout B && + echo d >z/d && + git add z/d && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '2a-check: Directory split into two on one side, with equal numbers of paths' ' + ( + cd 2a && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 >out && + test_i18ngrep "CONFLICT.*directory rename split" out && + + git ls-files -s >out && + test_line_count = 3 out && + git ls-files -u >out && + test_line_count = 0 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + :0:y/b :0:w/c :0:z/d && + git rev-parse >expect \ + O:z/b O:z/c B:z/d && + test_cmp expect actual + ) +' + +# Testcase 2b, Directory split into two on one side, with equal numbers of paths +# Commit O: z/{b,c} +# Commit A: y/b, w/c +# Commit B: z/{b,c}, x/d +# Expected: y/b, w/c, x/d; No warning about z/ -> (y/ vs. w/) conflict +test_expect_success '2b-setup: Directory split into two on one side, with equal numbers of paths' ' + test_create_repo 2b && + ( + cd 2b && + + mkdir z && + echo b >z/b && + echo c >z/c && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + mkdir y && + mkdir w && + git mv z/b y/ && + git mv z/c w/ && + test_tick && + git commit -m "A" && + + git checkout B && + mkdir x && + echo d >x/d && + git add x/d && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '2b-check: Directory split into two on one side, with equal numbers of paths' ' + ( + cd 2b && + + git checkout A^0 && + + git merge -s recursive B^0 >out && + + git ls-files -s >out && + test_line_count = 3 out && + git ls-files -u >out && + test_line_count = 0 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + :0:y/b :0:w/c :0:x/d && + git rev-parse >expect \ + O:z/b O:z/c B:x/d && + test_cmp expect actual && + test_i18ngrep ! "CONFLICT.*directory rename split" out + ) +' + +########################################################################### +# Rules suggested by section 2: +# +# None; the rule was already covered in section 1. These testcases are +# here just to make sure the conflict resolution and necessary warning +# messages are handled correctly. +########################################################################### + + +########################################################################### +# SECTION 3: Path in question is the source path for some rename already +# +# Combining cases from Section 1 and trying to handle them could lead to +# directory renaming detection being over-applied. So, this section +# provides some good testcases to check that the implementation doesn't go +# too far. +########################################################################### + +# Testcase 3a, Avoid implicit rename if involved as source on other side +# (Related to testcases 1c, 1f, and 9h) +# Commit O: z/{b,c,d} +# Commit A: z/{b,c,d} (no change) +# Commit B: y/{b,c}, x/d +# Expected: y/{b,c}, x/d +test_expect_success '3a-setup: Avoid implicit rename if involved as source on other side' ' + test_create_repo 3a && + ( + cd 3a && + + mkdir z && + echo b >z/b && + echo c >z/c && + echo d >z/d && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + test_tick && + git commit --allow-empty -m "A" && + + git checkout B && + mkdir y && + mkdir x && + git mv z/b y/ && + git mv z/c y/ && + git mv z/d x/ && + rmdir z && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '3a-check: Avoid implicit rename if involved as source on other side' ' + ( + cd 3a && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 3 out && + + git rev-parse >actual \ + HEAD:y/b HEAD:y/c HEAD:x/d && + git rev-parse >expect \ + O:z/b O:z/c O:z/d && + test_cmp expect actual + ) +' + +# Testcase 3b, Avoid implicit rename if involved as source on other side +# (Related to testcases 5c and 7c, also kind of 1e and 1f) +# Commit O: z/{b,c,d} +# Commit A: y/{b,c}, x/d +# Commit B: z/{b,c}, w/d +# Expected: y/{b,c}, CONFLICT:(z/d -> x/d vs. w/d) +# NOTE: We're particularly checking that since z/d is already involved as +# a source in a file rename on the same side of history, that we don't +# get it involved in directory rename detection. If it were, we might +# end up with CONFLICT:(z/d -> y/d vs. x/d vs. w/d), i.e. a +# rename/rename/rename(1to3) conflict, which is just weird. +test_expect_success '3b-setup: Avoid implicit rename if involved as source on current side' ' + test_create_repo 3b && + ( + cd 3b && + + mkdir z && + echo b >z/b && + echo c >z/c && + echo d >z/d && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + mkdir y && + mkdir x && + git mv z/b y/ && + git mv z/c y/ && + git mv z/d x/ && + rmdir z && + test_tick && + git commit -m "A" && + + git checkout B && + mkdir w && + git mv z/d w/ && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '3b-check: Avoid implicit rename if involved as source on current side' ' + ( + cd 3b && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 >out && + test_i18ngrep CONFLICT.*rename/rename.*z/d.*x/d.*w/d out && + test_i18ngrep ! CONFLICT.*rename/rename.*y/d out && + + git ls-files -s >out && + test_line_count = 5 out && + git ls-files -u >out && + test_line_count = 3 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + :0:y/b :0:y/c :1:z/d :2:x/d :3:w/d && + git rev-parse >expect \ + O:z/b O:z/c O:z/d O:z/d O:z/d && + test_cmp expect actual && + + test_path_is_missing z/d && + git hash-object >actual \ + x/d w/d && + git rev-parse >expect \ + O:z/d O:z/d && + test_cmp expect actual + ) +' + +########################################################################### +# Rules suggested by section 3: +# +# Avoid directory-rename-detection for a path, if that path is the source +# of a rename on either side of a merge. +########################################################################### + + +########################################################################### +# SECTION 4: Partially renamed directory; still exists on both sides of merge +# +# What if we were to attempt to do directory rename detection when someone +# "mostly" moved a directory but still left some files around, or, +# equivalently, fully renamed a directory in one commmit and then recreated +# that directory in a later commit adding some new files and then tried to +# merge? +# +# It's hard to divine user intent in these cases, because you can make an +# argument that, depending on the intermediate history of the side being +# merged, that some users will want files in that directory to +# automatically be detected and renamed, while users with a different +# intermediate history wouldn't want that rename to happen. +# +# I think that it is best to simply not have directory rename detection +# apply to such cases. My reasoning for this is four-fold: (1) it's +# easiest for users in general to figure out what happened if we don't +# apply directory rename detection in any such case, (2) it's an easy rule +# to explain ["We don't do directory rename detection if the directory +# still exists on both sides of the merge"], (3) we can get some hairy +# edge/corner cases that would be really confusing and possibly not even +# representable in the index if we were to even try, and [related to 3] (4) +# attempting to resolve this issue of divining user intent by examining +# intermediate history goes against the spirit of three-way merges and is a +# path towards crazy corner cases that are far more complex than what we're +# already dealing with. +# +# Note that the wording of the rule ("We don't do directory rename +# detection if the directory still exists on both sides of the merge.") +# also excludes "renaming" of a directory into a subdirectory of itself +# (e.g. /some/dir/* -> /some/dir/subdir/*). It may be possible to carve +# out an exception for "renaming"-beneath-itself cases without opening +# weird edge/corner cases for other partial directory renames, but for now +# we are keeping the rule simple. +# +# This section contains a test for a partially-renamed-directory case. +########################################################################### + +# Testcase 4a, Directory split, with original directory still present +# (Related to testcase 1f) +# Commit O: z/{b,c,d,e} +# Commit A: y/{b,c,d}, z/e +# Commit B: z/{b,c,d,e,f} +# Expected: y/{b,c,d}, z/{e,f} +# NOTE: Even though most files from z moved to y, we don't want f to follow. + +test_expect_success '4a-setup: Directory split, with original directory still present' ' + test_create_repo 4a && + ( + cd 4a && + + mkdir z && + echo b >z/b && + echo c >z/c && + echo d >z/d && + echo e >z/e && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + mkdir y && + git mv z/b y/ && + git mv z/c y/ && + git mv z/d y/ && + test_tick && + git commit -m "A" && + + git checkout B && + echo f >z/f && + git add z/f && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '4a-check: Directory split, with original directory still present' ' + ( + cd 4a && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 5 out && + git ls-files -u >out && + test_line_count = 0 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + HEAD:y/b HEAD:y/c HEAD:y/d HEAD:z/e HEAD:z/f && + git rev-parse >expect \ + O:z/b O:z/c O:z/d O:z/e B:z/f && + test_cmp expect actual + ) +' + +########################################################################### +# Rules suggested by section 4: +# +# Directory-rename-detection should be turned off for any directories (as +# a source for renames) that exist on both sides of the merge. (The "as +# a source for renames" clarification is due to cases like 1c where +# the target directory exists on both sides and we do want the rename +# detection.) But, sadly, see testcase 8b. +########################################################################### + + +########################################################################### +# SECTION 5: Files/directories in the way of subset of to-be-renamed paths +# +# Implicitly renaming files due to a detected directory rename could run +# into problems if there are files or directories in the way of the paths +# we want to rename. Explore such cases in this section. +########################################################################### + +# Testcase 5a, Merge directories, other side adds files to original and target +# Commit O: z/{b,c}, y/d +# Commit A: z/{b,c,e_1,f}, y/{d,e_2} +# Commit B: y/{b,c,d} +# Expected: z/e_1, y/{b,c,d,e_2,f} + CONFLICT warning +# NOTE: While directory rename detection is active here causing z/f to +# become y/f, we did not apply this for z/e_1 because that would +# give us an add/add conflict for y/e_1 vs y/e_2. This problem with +# this add/add, is that both versions of y/e are from the same side +# of history, giving us no way to represent this conflict in the +# index. + +test_expect_success '5a-setup: Merge directories, other side adds files to original and target' ' + test_create_repo 5a && + ( + cd 5a && + + mkdir z && + echo b >z/b && + echo c >z/c && + mkdir y && + echo d >y/d && + git add z y && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + echo e1 >z/e && + echo f >z/f && + echo e2 >y/e && + git add z/e z/f y/e && + test_tick && + git commit -m "A" && + + git checkout B && + git mv z/b y/ && + git mv z/c y/ && + rmdir z && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '5a-check: Merge directories, other side adds files to original and target' ' + ( + cd 5a && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 >out && + test_i18ngrep "CONFLICT.*implicit dir rename" out && + + git ls-files -s >out && + test_line_count = 6 out && + git ls-files -u >out && + test_line_count = 0 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + :0:y/b :0:y/c :0:y/d :0:y/e :0:z/e :0:y/f && + git rev-parse >expect \ + O:z/b O:z/c O:y/d A:y/e A:z/e A:z/f && + test_cmp expect actual + ) +' + +# Testcase 5b, Rename/delete in order to get add/add/add conflict +# (Related to testcase 8d; these may appear slightly inconsistent to users; +# Also related to testcases 7d and 7e) +# Commit O: z/{b,c,d_1} +# Commit A: y/{b,c,d_2} +# Commit B: z/{b,c,d_1,e}, y/d_3 +# Expected: y/{b,c,e}, CONFLICT(add/add: y/d_2 vs. y/d_3) +# NOTE: If z/d_1 in commit B were to be involved in dir rename detection, as +# we normaly would since z/ is being renamed to y/, then this would be +# a rename/delete (z/d_1 -> y/d_1 vs. deleted) AND an add/add/add +# conflict of y/d_1 vs. y/d_2 vs. y/d_3. Add/add/add is not +# representable in the index, so the existence of y/d_3 needs to +# cause us to bail on directory rename detection for that path, falling +# back to git behavior without the directory rename detection. + +test_expect_success '5b-setup: Rename/delete in order to get add/add/add conflict' ' + test_create_repo 5b && + ( + cd 5b && + + mkdir z && + echo b >z/b && + echo c >z/c && + echo d1 >z/d && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git rm z/d && + git mv z y && + echo d2 >y/d && + git add y/d && + test_tick && + git commit -m "A" && + + git checkout B && + mkdir y && + echo d3 >y/d && + echo e >z/e && + git add y/d z/e && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '5b-check: Rename/delete in order to get add/add/add conflict' ' + ( + cd 5b && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 >out && + test_i18ngrep "CONFLICT (add/add).* y/d" out && + + git ls-files -s >out && + test_line_count = 5 out && + git ls-files -u >out && + test_line_count = 2 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + :0:y/b :0:y/c :0:y/e :2:y/d :3:y/d && + git rev-parse >expect \ + O:z/b O:z/c B:z/e A:y/d B:y/d && + test_cmp expect actual && + + test_must_fail git rev-parse :1:y/d && + test_path_is_file y/d + ) +' + +# Testcase 5c, Transitive rename would cause rename/rename/rename/add/add/add +# (Directory rename detection would result in transitive rename vs. +# rename/rename(1to2) and turn it into a rename/rename(1to3). Further, +# rename paths conflict with separate adds on the other side) +# (Related to testcases 3b and 7c) +# Commit O: z/{b,c}, x/d_1 +# Commit A: y/{b,c,d_2}, w/d_1 +# Commit B: z/{b,c,d_1,e}, w/d_3, y/d_4 +# Expected: A mess, but only a rename/rename(1to2)/add/add mess. Use the +# presence of y/d_4 in B to avoid doing transitive rename of +# x/d_1 -> z/d_1 -> y/d_1, so that the only paths we have at +# y/d are y/d_2 and y/d_4. We still do the move from z/e to y/e, +# though, because it doesn't have anything in the way. + +test_expect_success '5c-setup: Transitive rename would cause rename/rename/rename/add/add/add' ' + test_create_repo 5c && + ( + cd 5c && + + mkdir z && + echo b >z/b && + echo c >z/c && + mkdir x && + echo d1 >x/d && + git add z x && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z y && + echo d2 >y/d && + git add y/d && + git mv x w && + test_tick && + git commit -m "A" && + + git checkout B && + git mv x/d z/ && + mkdir w && + mkdir y && + echo d3 >w/d && + echo d4 >y/d && + echo e >z/e && + git add w/ y/ z/e && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '5c-check: Transitive rename would cause rename/rename/rename/add/add/add' ' + ( + cd 5c && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 >out && + test_i18ngrep "CONFLICT (rename/rename).*x/d.*w/d.*z/d" out && + test_i18ngrep "CONFLICT (add/add).* y/d" out && + + git ls-files -s >out && + test_line_count = 9 out && + git ls-files -u >out && + test_line_count = 6 out && + git ls-files -o >out && + test_line_count = 3 out && + + git rev-parse >actual \ + :0:y/b :0:y/c :0:y/e && + git rev-parse >expect \ + O:z/b O:z/c B:z/e && + test_cmp expect actual && + + test_must_fail git rev-parse :1:y/d && + git rev-parse >actual \ + :2:w/d :3:w/d :1:x/d :2:y/d :3:y/d :3:z/d && + git rev-parse >expect \ + O:x/d B:w/d O:x/d A:y/d B:y/d O:x/d && + test_cmp expect actual && + + git hash-object >actual \ + w/d~HEAD w/d~B^0 z/d && + git rev-parse >expect \ + O:x/d B:w/d O:x/d && + test_cmp expect actual && + test_path_is_missing x/d && + test_path_is_file y/d && + grep -q "<<<<" y/d # conflict markers should be present + ) +' + +# Testcase 5d, Directory/file/file conflict due to directory rename +# Commit O: z/{b,c} +# Commit A: y/{b,c,d_1} +# Commit B: z/{b,c,d_2,f}, y/d/e +# Expected: y/{b,c,d/e,f}, z/d_2, CONFLICT(file/directory), y/d_1~HEAD +# Note: The fact that y/d/ exists in B makes us bail on directory rename +# detection for z/d_2, but that doesn't prevent us from applying the +# directory rename detection for z/f -> y/f. + +test_expect_success '5d-setup: Directory/file/file conflict due to directory rename' ' + test_create_repo 5d && + ( + cd 5d && + + mkdir z && + echo b >z/b && + echo c >z/c && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z y && + echo d1 >y/d && + git add y/d && + test_tick && + git commit -m "A" && + + git checkout B && + mkdir -p y/d && + echo e >y/d/e && + echo d2 >z/d && + echo f >z/f && + git add y/d/e z/d z/f && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '5d-check: Directory/file/file conflict due to directory rename' ' + ( + cd 5d && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 >out && + test_i18ngrep "CONFLICT (file/directory).*y/d" out && + + git ls-files -s >out && + test_line_count = 6 out && + git ls-files -u >out && + test_line_count = 1 out && + git ls-files -o >out && + test_line_count = 2 out && + + git rev-parse >actual \ + :0:y/b :0:y/c :0:z/d :0:y/f :2:y/d :0:y/d/e && + git rev-parse >expect \ + O:z/b O:z/c B:z/d B:z/f A:y/d B:y/d/e && + test_cmp expect actual && + + git hash-object y/d~HEAD >actual && + git rev-parse A:y/d >expect && + test_cmp expect actual + ) +' + +########################################################################### +# Rules suggested by section 5: +# +# If a subset of to-be-renamed files have a file or directory in the way, +# "turn off" the directory rename for those specific sub-paths, falling +# back to old handling. But, sadly, see testcases 8a and 8b. +########################################################################### + + +########################################################################### +# SECTION 6: Same side of the merge was the one that did the rename +# +# It may sound obvious that you only want to apply implicit directory +# renames to directories if the _other_ side of history did the renaming. +# If you did make an implementation that didn't explicitly enforce this +# rule, the majority of cases that would fall under this section would +# also be solved by following the rules from the above sections. But +# there are still a few that stick out, so this section covers them just +# to make sure we also get them right. +########################################################################### + +# Testcase 6a, Tricky rename/delete +# Commit O: z/{b,c,d} +# Commit A: z/b +# Commit B: y/{b,c}, z/d +# Expected: y/b, CONFLICT(rename/delete, z/c -> y/c vs. NULL) +# Note: We're just checking here that the rename of z/b and z/c to put +# them under y/ doesn't accidentally catch z/d and make it look like +# it is also involved in a rename/delete conflict. + +test_expect_success '6a-setup: Tricky rename/delete' ' + test_create_repo 6a && + ( + cd 6a && + + mkdir z && + echo b >z/b && + echo c >z/c && + echo d >z/d && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git rm z/c && + git rm z/d && + test_tick && + git commit -m "A" && + + git checkout B && + mkdir y && + git mv z/b y/ && + git mv z/c y/ && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '6a-check: Tricky rename/delete' ' + ( + cd 6a && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 >out && + test_i18ngrep "CONFLICT (rename/delete).*z/c.*y/c" out && + + git ls-files -s >out && + test_line_count = 2 out && + git ls-files -u >out && + test_line_count = 1 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + :0:y/b :3:y/c && + git rev-parse >expect \ + O:z/b O:z/c && + test_cmp expect actual + ) +' + +# Testcase 6b, Same rename done on both sides +# (Related to testcases 6c and 8e) +# Commit O: z/{b,c} +# Commit A: y/{b,c} +# Commit B: y/{b,c}, z/d +# Expected: y/{b,c}, z/d +# Note: If we did directory rename detection here, we'd move z/d into y/, +# but B did that rename and still decided to put the file into z/, +# so we probably shouldn't apply directory rename detection for it. + +test_expect_success '6b-setup: Same rename done on both sides' ' + test_create_repo 6b && + ( + cd 6b && + + mkdir z && + echo b >z/b && + echo c >z/c && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z y && + test_tick && + git commit -m "A" && + + git checkout B && + git mv z y && + mkdir z && + echo d >z/d && + git add z/d && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '6b-check: Same rename done on both sides' ' + ( + cd 6b && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 3 out && + git ls-files -u >out && + test_line_count = 0 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + HEAD:y/b HEAD:y/c HEAD:z/d && + git rev-parse >expect \ + O:z/b O:z/c B:z/d && + test_cmp expect actual + ) +' + +# Testcase 6c, Rename only done on same side +# (Related to testcases 6b and 8e) +# Commit O: z/{b,c} +# Commit A: z/{b,c} (no change) +# Commit B: y/{b,c}, z/d +# Expected: y/{b,c}, z/d +# NOTE: Seems obvious, but just checking that the implementation doesn't +# "accidentally detect a rename" and give us y/{b,c,d}. + +test_expect_success '6c-setup: Rename only done on same side' ' + test_create_repo 6c && + ( + cd 6c && + + mkdir z && + echo b >z/b && + echo c >z/c && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + test_tick && + git commit --allow-empty -m "A" && + + git checkout B && + git mv z y && + mkdir z && + echo d >z/d && + git add z/d && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '6c-check: Rename only done on same side' ' + ( + cd 6c && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 3 out && + git ls-files -u >out && + test_line_count = 0 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + HEAD:y/b HEAD:y/c HEAD:z/d && + git rev-parse >expect \ + O:z/b O:z/c B:z/d && + test_cmp expect actual + ) +' + +# Testcase 6d, We don't always want transitive renaming +# (Related to testcase 1c) +# Commit O: z/{b,c}, x/d +# Commit A: z/{b,c}, x/d (no change) +# Commit B: y/{b,c}, z/d +# Expected: y/{b,c}, z/d +# NOTE: Again, this seems obvious but just checking that the implementation +# doesn't "accidentally detect a rename" and give us y/{b,c,d}. + +test_expect_success '6d-setup: We do not always want transitive renaming' ' + test_create_repo 6d && + ( + cd 6d && + + mkdir z && + echo b >z/b && + echo c >z/c && + mkdir x && + echo d >x/d && + git add z x && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + test_tick && + git commit --allow-empty -m "A" && + + git checkout B && + git mv z y && + git mv x z && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '6d-check: We do not always want transitive renaming' ' + ( + cd 6d && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 3 out && + git ls-files -u >out && + test_line_count = 0 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + HEAD:y/b HEAD:y/c HEAD:z/d && + git rev-parse >expect \ + O:z/b O:z/c O:x/d && + test_cmp expect actual + ) +' + +# Testcase 6e, Add/add from one-side +# Commit O: z/{b,c} +# Commit A: z/{b,c} (no change) +# Commit B: y/{b,c,d_1}, z/d_2 +# Expected: y/{b,c,d_1}, z/d_2 +# NOTE: Again, this seems obvious but just checking that the implementation +# doesn't "accidentally detect a rename" and give us y/{b,c} + +# add/add conflict on y/d_1 vs y/d_2. + +test_expect_success '6e-setup: Add/add from one side' ' + test_create_repo 6e && + ( + cd 6e && + + mkdir z && + echo b >z/b && + echo c >z/c && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + test_tick && + git commit --allow-empty -m "A" && + + git checkout B && + git mv z y && + echo d1 > y/d && + mkdir z && + echo d2 > z/d && + git add y/d z/d && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '6e-check: Add/add from one side' ' + ( + cd 6e && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 4 out && + git ls-files -u >out && + test_line_count = 0 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + HEAD:y/b HEAD:y/c HEAD:y/d HEAD:z/d && + git rev-parse >expect \ + O:z/b O:z/c B:y/d B:z/d && + test_cmp expect actual + ) +' + +########################################################################### +# Rules suggested by section 6: +# +# Only apply implicit directory renames to directories if the other +# side of history is the one doing the renaming. +########################################################################### + + +########################################################################### +# SECTION 7: More involved Edge/Corner cases +# +# The ruleset we have generated in the above sections seems to provide +# well-defined merges. But can we find edge/corner cases that either (a) +# are harder for users to understand, or (b) have a resolution that is +# non-intuitive or suboptimal? +# +# The testcases in this section dive into cases that I've tried to craft in +# a way to find some that might be surprising to users or difficult for +# them to understand (the next section will look at non-intuitive or +# suboptimal merge results). Some of the testcases are similar to ones +# from past sections, but have been simplified to try to highlight error +# messages using a "modified" path (due to the directory rename). Are +# users okay with these? +# +# In my opinion, testcases that are difficult to understand from this +# section is due to difficulty in the testcase rather than the directory +# renaming (similar to how t6042 and t6036 have difficult resolutions due +# to the problem setup itself being complex). And I don't think the +# error messages are a problem. +# +# On the other hand, the testcases in section 8 worry me slightly more... +########################################################################### + +# Testcase 7a, rename-dir vs. rename-dir (NOT split evenly) PLUS add-other-file +# Commit O: z/{b,c} +# Commit A: y/{b,c} +# Commit B: w/b, x/c, z/d +# Expected: y/d, CONFLICT(rename/rename for both z/b and z/c) +# NOTE: There's a rename of z/ here, y/ has more renames, so z/d -> y/d. + +test_expect_success '7a-setup: rename-dir vs. rename-dir (NOT split evenly) PLUS add-other-file' ' + test_create_repo 7a && + ( + cd 7a && + + mkdir z && + echo b >z/b && + echo c >z/c && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z y && + test_tick && + git commit -m "A" && + + git checkout B && + mkdir w && + mkdir x && + git mv z/b w/ && + git mv z/c x/ && + echo d > z/d && + git add z/d && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '7a-check: rename-dir vs. rename-dir (NOT split evenly) PLUS add-other-file' ' + ( + cd 7a && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 >out && + test_i18ngrep "CONFLICT (rename/rename).*z/b.*y/b.*w/b" out && + test_i18ngrep "CONFLICT (rename/rename).*z/c.*y/c.*x/c" out && + + git ls-files -s >out && + test_line_count = 7 out && + git ls-files -u >out && + test_line_count = 6 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + :1:z/b :2:y/b :3:w/b :1:z/c :2:y/c :3:x/c :0:y/d && + git rev-parse >expect \ + O:z/b O:z/b O:z/b O:z/c O:z/c O:z/c B:z/d && + test_cmp expect actual && + + git hash-object >actual \ + y/b w/b y/c x/c && + git rev-parse >expect \ + O:z/b O:z/b O:z/c O:z/c && + test_cmp expect actual + ) +' + +# Testcase 7b, rename/rename(2to1), but only due to transitive rename +# (Related to testcase 1d) +# Commit O: z/{b,c}, x/d_1, w/d_2 +# Commit A: y/{b,c,d_2}, x/d_1 +# Commit B: z/{b,c,d_1}, w/d_2 +# Expected: y/{b,c}, CONFLICT(rename/rename(2to1): x/d_1, w/d_2 -> y_d) + +test_expect_success '7b-setup: rename/rename(2to1), but only due to transitive rename' ' + test_create_repo 7b && + ( + cd 7b && + + mkdir z && + mkdir x && + mkdir w && + echo b >z/b && + echo c >z/c && + echo d1 > x/d && + echo d2 > w/d && + git add z x w && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z y && + git mv w/d y/ && + test_tick && + git commit -m "A" && + + git checkout B && + git mv x/d z/ && + rmdir x && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '7b-check: rename/rename(2to1), but only due to transitive rename' ' + ( + cd 7b && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 >out && + test_i18ngrep "CONFLICT (rename/rename)" out && + + git ls-files -s >out && + test_line_count = 4 out && + git ls-files -u >out && + test_line_count = 2 out && + git ls-files -o >out && + test_line_count = 3 out && + + git rev-parse >actual \ + :0:y/b :0:y/c :2:y/d :3:y/d && + git rev-parse >expect \ + O:z/b O:z/c O:w/d O:x/d && + test_cmp expect actual && + + test_path_is_missing y/d && + test_path_is_file y/d~HEAD && + test_path_is_file y/d~B^0 && + + git hash-object >actual \ + y/d~HEAD y/d~B^0 && + git rev-parse >expect \ + O:w/d O:x/d && + test_cmp expect actual + ) +' + +# Testcase 7c, rename/rename(1to...2or3); transitive rename may add complexity +# (Related to testcases 3b and 5c) +# Commit O: z/{b,c}, x/d +# Commit A: y/{b,c}, w/d +# Commit B: z/{b,c,d} +# Expected: y/{b,c}, CONFLICT(x/d -> w/d vs. y/d) +# NOTE: z/ was renamed to y/ so we do want to report +# neither CONFLICT(x/d -> w/d vs. z/d) +# nor CONFLiCT x/d -> w/d vs. y/d vs. z/d) + +test_expect_success '7c-setup: rename/rename(1to...2or3); transitive rename may add complexity' ' + test_create_repo 7c && + ( + cd 7c && + + mkdir z && + echo b >z/b && + echo c >z/c && + mkdir x && + echo d >x/d && + git add z x && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z y && + git mv x w && + test_tick && + git commit -m "A" && + + git checkout B && + git mv x/d z/ && + rmdir x && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '7c-check: rename/rename(1to...2or3); transitive rename may add complexity' ' + ( + cd 7c && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 >out && + test_i18ngrep "CONFLICT (rename/rename).*x/d.*w/d.*y/d" out && + + git ls-files -s >out && + test_line_count = 5 out && + git ls-files -u >out && + test_line_count = 3 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + :0:y/b :0:y/c :1:x/d :2:w/d :3:y/d && + git rev-parse >expect \ + O:z/b O:z/c O:x/d O:x/d O:x/d && + test_cmp expect actual + ) +' + +# Testcase 7d, transitive rename involved in rename/delete; how is it reported? +# (Related somewhat to testcases 5b and 8d) +# Commit O: z/{b,c}, x/d +# Commit A: y/{b,c} +# Commit B: z/{b,c,d} +# Expected: y/{b,c}, CONFLICT(delete x/d vs rename to y/d) +# NOTE: z->y so NOT CONFLICT(delete x/d vs rename to z/d) + +test_expect_success '7d-setup: transitive rename involved in rename/delete; how is it reported?' ' + test_create_repo 7d && + ( + cd 7d && + + mkdir z && + echo b >z/b && + echo c >z/c && + mkdir x && + echo d >x/d && + git add z x && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z y && + git rm -rf x && + test_tick && + git commit -m "A" && + + git checkout B && + git mv x/d z/ && + rmdir x && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '7d-check: transitive rename involved in rename/delete; how is it reported?' ' + ( + cd 7d && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 >out && + test_i18ngrep "CONFLICT (rename/delete).*x/d.*y/d" out && + + git ls-files -s >out && + test_line_count = 3 out && + git ls-files -u >out && + test_line_count = 1 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + :0:y/b :0:y/c :3:y/d && + git rev-parse >expect \ + O:z/b O:z/c O:x/d && + test_cmp expect actual + ) +' + +# Testcase 7e, transitive rename in rename/delete AND dirs in the way +# (Very similar to 'both rename source and destination involved in D/F conflict' from t6022-merge-rename.sh) +# (Also related to testcases 9c and 9d) +# Commit O: z/{b,c}, x/d_1 +# Commit A: y/{b,c,d/g}, x/d/f +# Commit B: z/{b,c,d_1} +# Expected: rename/delete(x/d_1->y/d_1 vs. None) + D/F conflict on y/d +# y/{b,c,d/g}, y/d_1~B^0, x/d/f + +# NOTE: The main path of interest here is d_1 and where it ends up, but +# this is actually a case that has two potential directory renames +# involved and D/F conflict(s), so it makes sense to walk through +# each step. +# +# Commit A renames z/ -> y/. Thus everything that B adds to z/ +# should be instead moved to y/. This gives us the D/F conflict on +# y/d because x/d_1 -> z/d_1 -> y/d_1 conflicts with y/d/g. +# +# Further, commit B renames x/ -> z/, thus everything A adds to x/ +# should instead be moved to z/...BUT we removed z/ and renamed it +# to y/, so maybe everything should move not from x/ to z/, but +# from x/ to z/ to y/. Doing so might make sense from the logic so +# far, but note that commit A had both an x/ and a y/; it did the +# renaming of z/ to y/ and created x/d/f and it clearly made these +# things separate, so it doesn't make much sense to push these +# together. Doing so is what I'd call a doubly transitive rename; +# see testcases 9c and 9d for further discussion of this issue and +# how it's resolved. + +test_expect_success '7e-setup: transitive rename in rename/delete AND dirs in the way' ' + test_create_repo 7e && + ( + cd 7e && + + mkdir z && + echo b >z/b && + echo c >z/c && + mkdir x && + echo d1 >x/d && + git add z x && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z y && + git rm x/d && + mkdir -p x/d && + mkdir -p y/d && + echo f >x/d/f && + echo g >y/d/g && + git add x/d/f y/d/g && + test_tick && + git commit -m "A" && + + git checkout B && + git mv x/d z/ && + rmdir x && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '7e-check: transitive rename in rename/delete AND dirs in the way' ' + ( + cd 7e && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 >out && + test_i18ngrep "CONFLICT (rename/delete).*x/d.*y/d" out && + + git ls-files -s >out && + test_line_count = 5 out && + git ls-files -u >out && + test_line_count = 1 out && + git ls-files -o >out && + test_line_count = 2 out && + + git rev-parse >actual \ + :0:x/d/f :0:y/d/g :0:y/b :0:y/c :3:y/d && + git rev-parse >expect \ + A:x/d/f A:y/d/g O:z/b O:z/c O:x/d && + test_cmp expect actual && + + git hash-object y/d~B^0 >actual && + git rev-parse O:x/d >expect && + test_cmp expect actual + ) +' + +########################################################################### +# SECTION 8: Suboptimal merges +# +# As alluded to in the last section, the ruleset we have built up for +# detecting directory renames unfortunately has some special cases where it +# results in slightly suboptimal or non-intuitive behavior. This section +# explores these cases. +# +# To be fair, we already had non-intuitive or suboptimal behavior for most +# of these cases in git before introducing implicit directory rename +# detection, but it'd be nice if there was a modified ruleset out there +# that handled these cases a bit better. +########################################################################### + +# Testcase 8a, Dual-directory rename, one into the others' way +# Commit O. x/{a,b}, y/{c,d} +# Commit A. x/{a,b,e}, y/{c,d,f} +# Commit B. y/{a,b}, z/{c,d} +# +# Possible Resolutions: +# w/o dir-rename detection: y/{a,b,f}, z/{c,d}, x/e +# Currently expected: y/{a,b,e,f}, z/{c,d} +# Optimal: y/{a,b,e}, z/{c,d,f} +# +# Note: Both x and y got renamed and it'd be nice to detect both, and we do +# better with directory rename detection than git did without, but the +# simple rule from section 5 prevents me from handling this as optimally as +# we potentially could. + +test_expect_success '8a-setup: Dual-directory rename, one into the others way' ' + test_create_repo 8a && + ( + cd 8a && + + mkdir x && + mkdir y && + echo a >x/a && + echo b >x/b && + echo c >y/c && + echo d >y/d && + git add x y && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + echo e >x/e && + echo f >y/f && + git add x/e y/f && + test_tick && + git commit -m "A" && + + git checkout B && + git mv y z && + git mv x y && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '8a-check: Dual-directory rename, one into the others way' ' + ( + cd 8a && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 6 out && + git ls-files -u >out && + test_line_count = 0 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + HEAD:y/a HEAD:y/b HEAD:y/e HEAD:y/f HEAD:z/c HEAD:z/d && + git rev-parse >expect \ + O:x/a O:x/b A:x/e A:y/f O:y/c O:y/d && + test_cmp expect actual + ) +' + +# Testcase 8b, Dual-directory rename, one into the others' way, with conflicting filenames +# Commit O. x/{a_1,b_1}, y/{a_2,b_2} +# Commit A. x/{a_1,b_1,e_1}, y/{a_2,b_2,e_2} +# Commit B. y/{a_1,b_1}, z/{a_2,b_2} +# +# w/o dir-rename detection: y/{a_1,b_1,e_2}, z/{a_2,b_2}, x/e_1 +# Currently expected: <same> +# Scary: y/{a_1,b_1}, z/{a_2,b_2}, CONFLICT(add/add, e_1 vs. e_2) +# Optimal: y/{a_1,b_1,e_1}, z/{a_2,b_2,e_2} +# +# Note: Very similar to 8a, except instead of 'e' and 'f' in directories x and +# y, both are named 'e'. Without directory rename detection, neither file +# moves directories. Implement directory rename detection suboptimally, and +# you get an add/add conflict, but both files were added in commit A, so this +# is an add/add conflict where one side of history added both files -- +# something we can't represent in the index. Obviously, we'd prefer the last +# resolution, but our previous rules are too coarse to allow it. Using both +# the rules from section 4 and section 5 save us from the Scary resolution, +# making us fall back to pre-directory-rename-detection behavior for both +# e_1 and e_2. + +test_expect_success '8b-setup: Dual-directory rename, one into the others way, with conflicting filenames' ' + test_create_repo 8b && + ( + cd 8b && + + mkdir x && + mkdir y && + echo a1 >x/a && + echo b1 >x/b && + echo a2 >y/a && + echo b2 >y/b && + git add x y && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + echo e1 >x/e && + echo e2 >y/e && + git add x/e y/e && + test_tick && + git commit -m "A" && + + git checkout B && + git mv y z && + git mv x y && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '8b-check: Dual-directory rename, one into the others way, with conflicting filenames' ' + ( + cd 8b && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 6 out && + git ls-files -u >out && + test_line_count = 0 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + HEAD:y/a HEAD:y/b HEAD:z/a HEAD:z/b HEAD:x/e HEAD:y/e && + git rev-parse >expect \ + O:x/a O:x/b O:y/a O:y/b A:x/e A:y/e && + test_cmp expect actual + ) +' + +# Testcase 8c, modify/delete or rename+modify/delete? +# (Related to testcases 5b, 8d, and 9h) +# Commit O: z/{b,c,d} +# Commit A: y/{b,c} +# Commit B: z/{b,c,d_modified,e} +# Expected: y/{b,c,e}, CONFLICT(modify/delete: on z/d) +# +# Note: It could easily be argued that the correct resolution here is +# y/{b,c,e}, CONFLICT(rename/delete: z/d -> y/d vs deleted) +# and that the modifed version of d should be present in y/ after +# the merge, just marked as conflicted. Indeed, I previously did +# argue that. But applying directory renames to the side of +# history where a file is merely modified results in spurious +# rename/rename(1to2) conflicts -- see testcase 9h. See also +# notes in 8d. + +test_expect_success '8c-setup: modify/delete or rename+modify/delete?' ' + test_create_repo 8c && + ( + cd 8c && + + mkdir z && + echo b >z/b && + echo c >z/c && + test_seq 1 10 >z/d && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git rm z/d && + git mv z y && + test_tick && + git commit -m "A" && + + git checkout B && + echo 11 >z/d && + test_chmod +x z/d && + echo e >z/e && + git add z/d z/e && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '8c-check: modify/delete or rename+modify/delete' ' + ( + cd 8c && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 >out && + test_i18ngrep "CONFLICT (modify/delete).* z/d" out && + + git ls-files -s >out && + test_line_count = 5 out && + git ls-files -u >out && + test_line_count = 2 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + :0:y/b :0:y/c :0:y/e :1:z/d :3:z/d && + git rev-parse >expect \ + O:z/b O:z/c B:z/e O:z/d B:z/d && + test_cmp expect actual && + + test_must_fail git rev-parse :2:z/d && + git ls-files -s z/d | grep ^100755 && + test_path_is_file z/d && + test_path_is_missing y/d + ) +' + +# Testcase 8d, rename/delete...or not? +# (Related to testcase 5b; these may appear slightly inconsistent to users; +# Also related to testcases 7d and 7e) +# Commit O: z/{b,c,d} +# Commit A: y/{b,c} +# Commit B: z/{b,c,d,e} +# Expected: y/{b,c,e} +# +# Note: It would also be somewhat reasonable to resolve this as +# y/{b,c,e}, CONFLICT(rename/delete: x/d -> y/d or deleted) +# +# In this case, I'm leaning towards: commit A was the one that deleted z/d +# and it did the rename of z to y, so the two "conflicts" (rename vs. +# delete) are both coming from commit A, which is illogical. Conflicts +# during merging are supposed to be about opposite sides doing things +# differently. + +test_expect_success '8d-setup: rename/delete...or not?' ' + test_create_repo 8d && + ( + cd 8d && + + mkdir z && + echo b >z/b && + echo c >z/c && + test_seq 1 10 >z/d && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git rm z/d && + git mv z y && + test_tick && + git commit -m "A" && + + git checkout B && + echo e >z/e && + git add z/e && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '8d-check: rename/delete...or not?' ' + ( + cd 8d && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 3 out && + + git rev-parse >actual \ + HEAD:y/b HEAD:y/c HEAD:y/e && + git rev-parse >expect \ + O:z/b O:z/c B:z/e && + test_cmp expect actual + ) +' + +# Testcase 8e, Both sides rename, one side adds to original directory +# Commit O: z/{b,c} +# Commit A: y/{b,c} +# Commit B: w/{b,c}, z/d +# +# Possible Resolutions: +# w/o dir-rename detection: z/d, CONFLICT(z/b -> y/b vs. w/b), +# CONFLICT(z/c -> y/c vs. w/c) +# Currently expected: y/d, CONFLICT(z/b -> y/b vs. w/b), +# CONFLICT(z/c -> y/c vs. w/c) +# Optimal: ?? +# +# Notes: In commit A, directory z got renamed to y. In commit B, directory z +# did NOT get renamed; the directory is still present; instead it is +# considered to have just renamed a subset of paths in directory z +# elsewhere. Therefore, the directory rename done in commit A to z/ +# applies to z/d and maps it to y/d. +# +# It's possible that users would get confused about this, but what +# should we do instead? Silently leaving at z/d seems just as bad or +# maybe even worse. Perhaps we could print a big warning about z/d +# and how we're moving to y/d in this case, but when I started thinking +# about the ramifications of doing that, I didn't know how to rule out +# that opening other weird edge and corner cases so I just punted. + +test_expect_success '8e-setup: Both sides rename, one side adds to original directory' ' + test_create_repo 8e && + ( + cd 8e && + + mkdir z && + echo b >z/b && + echo c >z/c && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z y && + test_tick && + git commit -m "A" && + + git checkout B && + git mv z w && + mkdir z && + echo d >z/d && + git add z/d && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '8e-check: Both sides rename, one side adds to original directory' ' + ( + cd 8e && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 >out 2>err && + test_i18ngrep CONFLICT.*rename/rename.*z/c.*y/c.*w/c out && + test_i18ngrep CONFLICT.*rename/rename.*z/b.*y/b.*w/b out && + + git ls-files -s >out && + test_line_count = 7 out && + git ls-files -u >out && + test_line_count = 6 out && + git ls-files -o >out && + test_line_count = 2 out && + + git rev-parse >actual \ + :1:z/b :2:y/b :3:w/b :1:z/c :2:y/c :3:w/c :0:y/d && + git rev-parse >expect \ + O:z/b O:z/b O:z/b O:z/c O:z/c O:z/c B:z/d && + test_cmp expect actual && + + git hash-object >actual \ + y/b w/b y/c w/c && + git rev-parse >expect \ + O:z/b O:z/b O:z/c O:z/c && + test_cmp expect actual && + + test_path_is_missing z/b && + test_path_is_missing z/c + ) +' + +########################################################################### +# SECTION 9: Other testcases +# +# This section consists of miscellaneous testcases I thought of during +# the implementation which round out the testing. +########################################################################### + +# Testcase 9a, Inner renamed directory within outer renamed directory +# (Related to testcase 1f) +# Commit O: z/{b,c,d/{e,f,g}} +# Commit A: y/{b,c}, x/w/{e,f,g} +# Commit B: z/{b,c,d/{e,f,g,h},i} +# Expected: y/{b,c,i}, x/w/{e,f,g,h} +# NOTE: The only reason this one is interesting is because when a directory +# is split into multiple other directories, we determine by the weight +# of which one had the most paths going to it. A naive implementation +# of that could take the new file in commit B at z/i to x/w/i or x/i. + +test_expect_success '9a-setup: Inner renamed directory within outer renamed directory' ' + test_create_repo 9a && + ( + cd 9a && + + mkdir -p z/d && + echo b >z/b && + echo c >z/c && + echo e >z/d/e && + echo f >z/d/f && + echo g >z/d/g && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + mkdir x && + git mv z/d x/w && + git mv z y && + test_tick && + git commit -m "A" && + + git checkout B && + echo h >z/d/h && + echo i >z/i && + git add z && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '9a-check: Inner renamed directory within outer renamed directory' ' + ( + cd 9a && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 7 out && + git ls-files -u >out && + test_line_count = 0 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + HEAD:y/b HEAD:y/c HEAD:y/i && + git rev-parse >expect \ + O:z/b O:z/c B:z/i && + test_cmp expect actual && + + git rev-parse >actual \ + HEAD:x/w/e HEAD:x/w/f HEAD:x/w/g HEAD:x/w/h && + git rev-parse >expect \ + O:z/d/e O:z/d/f O:z/d/g B:z/d/h && + test_cmp expect actual + ) +' + +# Testcase 9b, Transitive rename with content merge +# (Related to testcase 1c) +# Commit O: z/{b,c}, x/d_1 +# Commit A: y/{b,c}, x/d_2 +# Commit B: z/{b,c,d_3} +# Expected: y/{b,c,d_merged} + +test_expect_success '9b-setup: Transitive rename with content merge' ' + test_create_repo 9b && + ( + cd 9b && + + mkdir z && + echo b >z/b && + echo c >z/c && + mkdir x && + test_seq 1 10 >x/d && + git add z x && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z y && + test_seq 1 11 >x/d && + git add x/d && + test_tick && + git commit -m "A" && + + git checkout B && + test_seq 0 10 >x/d && + git mv x/d z/d && + git add z/d && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '9b-check: Transitive rename with content merge' ' + ( + cd 9b && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 3 out && + + test_seq 0 11 >expected && + test_cmp expected y/d && + git add expected && + git rev-parse >actual \ + HEAD:y/b HEAD:y/c HEAD:y/d && + git rev-parse >expect \ + O:z/b O:z/c :0:expected && + test_cmp expect actual && + test_must_fail git rev-parse HEAD:x/d && + test_must_fail git rev-parse HEAD:z/d && + test_path_is_missing z/d && + + test $(git rev-parse HEAD:y/d) != $(git rev-parse O:x/d) && + test $(git rev-parse HEAD:y/d) != $(git rev-parse A:x/d) && + test $(git rev-parse HEAD:y/d) != $(git rev-parse B:z/d) + ) +' + +# Testcase 9c, Doubly transitive rename? +# (Related to testcase 1c, 7e, and 9d) +# Commit O: z/{b,c}, x/{d,e}, w/f +# Commit A: y/{b,c}, x/{d,e,f,g} +# Commit B: z/{b,c,d,e}, w/f +# Expected: y/{b,c,d,e}, x/{f,g} +# +# NOTE: x/f and x/g may be slightly confusing here. The rename from w/f to +# x/f is clear. Let's look beyond that. Here's the logic: +# Commit B renamed x/ -> z/ +# Commit A renamed z/ -> y/ +# So, we could possibly further rename x/f to z/f to y/f, a doubly +# transient rename. However, where does it end? We can chain these +# indefinitely (see testcase 9d). What if there is a D/F conflict +# at z/f/ or y/f/? Or just another file conflict at one of those +# paths? In the case of an N-long chain of transient renamings, +# where do we "abort" the rename at? Can the user make sense of +# the resulting conflict and resolve it? +# +# To avoid this confusion I use the simple rule that if the other side +# of history did a directory rename to a path that your side renamed +# away, then ignore that particular rename from the other side of +# history for any implicit directory renames. + +test_expect_success '9c-setup: Doubly transitive rename?' ' + test_create_repo 9c && + ( + cd 9c && + + mkdir z && + echo b >z/b && + echo c >z/c && + mkdir x && + echo d >x/d && + echo e >x/e && + mkdir w && + echo f >w/f && + git add z x w && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z y && + git mv w/f x/ && + echo g >x/g && + git add x/g && + test_tick && + git commit -m "A" && + + git checkout B && + git mv x/d z/d && + git mv x/e z/e && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '9c-check: Doubly transitive rename?' ' + ( + cd 9c && + + git checkout A^0 && + + git merge -s recursive B^0 >out && + test_i18ngrep "WARNING: Avoiding applying x -> z rename to x/f" out && + + git ls-files -s >out && + test_line_count = 6 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + HEAD:y/b HEAD:y/c HEAD:y/d HEAD:y/e HEAD:x/f HEAD:x/g && + git rev-parse >expect \ + O:z/b O:z/c O:x/d O:x/e O:w/f A:x/g && + test_cmp expect actual + ) +' + +# Testcase 9d, N-fold transitive rename? +# (Related to testcase 9c...and 1c and 7e) +# Commit O: z/a, y/b, x/c, w/d, v/e, u/f +# Commit A: y/{a,b}, w/{c,d}, u/{e,f} +# Commit B: z/{a,t}, x/{b,c}, v/{d,e}, u/f +# Expected: <see NOTE first> +# +# NOTE: z/ -> y/ (in commit A) +# y/ -> x/ (in commit B) +# x/ -> w/ (in commit A) +# w/ -> v/ (in commit B) +# v/ -> u/ (in commit A) +# So, if we add a file to z, say z/t, where should it end up? In u? +# What if there's another file or directory named 't' in one of the +# intervening directories and/or in u itself? Also, shouldn't the +# same logic that places 't' in u/ also move ALL other files to u/? +# What if there are file or directory conflicts in any of them? If +# we attempted to do N-way (N-fold? N-ary? N-uple?) transitive renames +# like this, would the user have any hope of understanding any +# conflicts or how their working tree ended up? I think not, so I'm +# ruling out N-ary transitive renames for N>1. +# +# Therefore our expected result is: +# z/t, y/a, x/b, w/c, u/d, u/e, u/f +# The reason that v/d DOES get transitively renamed to u/d is that u/ isn't +# renamed somewhere. A slightly sub-optimal result, but it uses fairly +# simple rules that are consistent with what we need for all the other +# testcases and simplifies things for the user. + +test_expect_success '9d-setup: N-way transitive rename?' ' + test_create_repo 9d && + ( + cd 9d && + + mkdir z y x w v u && + echo a >z/a && + echo b >y/b && + echo c >x/c && + echo d >w/d && + echo e >v/e && + echo f >u/f && + git add z y x w v u && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z/a y/ && + git mv x/c w/ && + git mv v/e u/ && + test_tick && + git commit -m "A" && + + git checkout B && + echo t >z/t && + git mv y/b x/ && + git mv w/d v/ && + git add z/t && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '9d-check: N-way transitive rename?' ' + ( + cd 9d && + + git checkout A^0 && + + git merge -s recursive B^0 >out && + test_i18ngrep "WARNING: Avoiding applying z -> y rename to z/t" out && + test_i18ngrep "WARNING: Avoiding applying y -> x rename to y/a" out && + test_i18ngrep "WARNING: Avoiding applying x -> w rename to x/b" out && + test_i18ngrep "WARNING: Avoiding applying w -> v rename to w/c" out && + + git ls-files -s >out && + test_line_count = 7 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + HEAD:z/t \ + HEAD:y/a HEAD:x/b HEAD:w/c \ + HEAD:u/d HEAD:u/e HEAD:u/f && + git rev-parse >expect \ + B:z/t \ + O:z/a O:y/b O:x/c \ + O:w/d O:v/e A:u/f && + test_cmp expect actual + ) +' + +# Testcase 9e, N-to-1 whammo +# (Related to testcase 9c...and 1c and 7e) +# Commit O: dir1/{a,b}, dir2/{d,e}, dir3/{g,h}, dirN/{j,k} +# Commit A: dir1/{a,b,c,yo}, dir2/{d,e,f,yo}, dir3/{g,h,i,yo}, dirN/{j,k,l,yo} +# Commit B: combined/{a,b,d,e,g,h,j,k} +# Expected: combined/{a,b,c,d,e,f,g,h,i,j,k,l}, CONFLICT(Nto1) warnings, +# dir1/yo, dir2/yo, dir3/yo, dirN/yo + +test_expect_success '9e-setup: N-to-1 whammo' ' + test_create_repo 9e && + ( + cd 9e && + + mkdir dir1 dir2 dir3 dirN && + echo a >dir1/a && + echo b >dir1/b && + echo d >dir2/d && + echo e >dir2/e && + echo g >dir3/g && + echo h >dir3/h && + echo j >dirN/j && + echo k >dirN/k && + git add dir* && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + echo c >dir1/c && + echo yo >dir1/yo && + echo f >dir2/f && + echo yo >dir2/yo && + echo i >dir3/i && + echo yo >dir3/yo && + echo l >dirN/l && + echo yo >dirN/yo && + git add dir* && + test_tick && + git commit -m "A" && + + git checkout B && + git mv dir1 combined && + git mv dir2/* combined/ && + git mv dir3/* combined/ && + git mv dirN/* combined/ && + test_tick && + git commit -m "B" + ) +' + +test_expect_success C_LOCALE_OUTPUT '9e-check: N-to-1 whammo' ' + ( + cd 9e && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 >out && + grep "CONFLICT (implicit dir rename): Cannot map more than one path to combined/yo" out >error_line && + grep -q dir1/yo error_line && + grep -q dir2/yo error_line && + grep -q dir3/yo error_line && + grep -q dirN/yo error_line && + + git ls-files -s >out && + test_line_count = 16 out && + git ls-files -u >out && + test_line_count = 0 out && + git ls-files -o >out && + test_line_count = 2 out && + + git rev-parse >actual \ + :0:combined/a :0:combined/b :0:combined/c \ + :0:combined/d :0:combined/e :0:combined/f \ + :0:combined/g :0:combined/h :0:combined/i \ + :0:combined/j :0:combined/k :0:combined/l && + git rev-parse >expect \ + O:dir1/a O:dir1/b A:dir1/c \ + O:dir2/d O:dir2/e A:dir2/f \ + O:dir3/g O:dir3/h A:dir3/i \ + O:dirN/j O:dirN/k A:dirN/l && + test_cmp expect actual && + + git rev-parse >actual \ + :0:dir1/yo :0:dir2/yo :0:dir3/yo :0:dirN/yo && + git rev-parse >expect \ + A:dir1/yo A:dir2/yo A:dir3/yo A:dirN/yo && + test_cmp expect actual + ) +' + +# Testcase 9f, Renamed directory that only contained immediate subdirs +# (Related to testcases 1e & 9g) +# Commit O: goal/{a,b}/$more_files +# Commit A: priority/{a,b}/$more_files +# Commit B: goal/{a,b}/$more_files, goal/c +# Expected: priority/{a,b}/$more_files, priority/c + +test_expect_success '9f-setup: Renamed directory that only contained immediate subdirs' ' + test_create_repo 9f && + ( + cd 9f && + + mkdir -p goal/a && + mkdir -p goal/b && + echo foo >goal/a/foo && + echo bar >goal/b/bar && + echo baz >goal/b/baz && + git add goal && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv goal/ priority && + test_tick && + git commit -m "A" && + + git checkout B && + echo c >goal/c && + git add goal/c && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '9f-check: Renamed directory that only contained immediate subdirs' ' + ( + cd 9f && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 4 out && + + git rev-parse >actual \ + HEAD:priority/a/foo \ + HEAD:priority/b/bar \ + HEAD:priority/b/baz \ + HEAD:priority/c && + git rev-parse >expect \ + O:goal/a/foo \ + O:goal/b/bar \ + O:goal/b/baz \ + B:goal/c && + test_cmp expect actual && + test_must_fail git rev-parse HEAD:goal/c + ) +' + +# Testcase 9g, Renamed directory that only contained immediate subdirs, immediate subdirs renamed +# (Related to testcases 1e & 9f) +# Commit O: goal/{a,b}/$more_files +# Commit A: priority/{alpha,bravo}/$more_files +# Commit B: goal/{a,b}/$more_files, goal/c +# Expected: priority/{alpha,bravo}/$more_files, priority/c + +test_expect_success '9g-setup: Renamed directory that only contained immediate subdirs, immediate subdirs renamed' ' + test_create_repo 9g && + ( + cd 9g && + + mkdir -p goal/a && + mkdir -p goal/b && + echo foo >goal/a/foo && + echo bar >goal/b/bar && + echo baz >goal/b/baz && + git add goal && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + mkdir priority && + git mv goal/a/ priority/alpha && + git mv goal/b/ priority/beta && + rmdir goal/ && + test_tick && + git commit -m "A" && + + git checkout B && + echo c >goal/c && + git add goal/c && + test_tick && + git commit -m "B" + ) +' + +test_expect_failure '9g-check: Renamed directory that only contained immediate subdirs, immediate subdirs renamed' ' + ( + cd 9g && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 4 out && + + git rev-parse >actual \ + HEAD:priority/alpha/foo \ + HEAD:priority/beta/bar \ + HEAD:priority/beta/baz \ + HEAD:priority/c && + git rev-parse >expect \ + O:goal/a/foo \ + O:goal/b/bar \ + O:goal/b/baz \ + B:goal/c && + test_cmp expect actual && + test_must_fail git rev-parse HEAD:goal/c + ) +' + +# Testcase 9h, Avoid implicit rename if involved as source on other side +# (Extremely closely related to testcase 3a) +# Commit O: z/{b,c,d_1} +# Commit A: z/{b,c,d_2} +# Commit B: y/{b,c}, x/d_1 +# Expected: y/{b,c}, x/d_2 +# NOTE: If we applied the z/ -> y/ rename to z/d, then we'd end up with +# a rename/rename(1to2) conflict (z/d -> y/d vs. x/d) +test_expect_success '9h-setup: Avoid dir rename on merely modified path' ' + test_create_repo 9h && + ( + cd 9h && + + mkdir z && + echo b >z/b && + echo c >z/c && + printf "1\n2\n3\n4\n5\n6\n7\n8\nd\n" >z/d && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + test_tick && + echo more >>z/d && + git add z/d && + git commit -m "A" && + + git checkout B && + mkdir y && + mkdir x && + git mv z/b y/ && + git mv z/c y/ && + git mv z/d x/ && + rmdir z && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '9h-check: Avoid dir rename on merely modified path' ' + ( + cd 9h && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 3 out && + + git rev-parse >actual \ + HEAD:y/b HEAD:y/c HEAD:x/d && + git rev-parse >expect \ + O:z/b O:z/c A:z/d && + test_cmp expect actual + ) +' + +########################################################################### +# Rules suggested by section 9: +# +# If the other side of history did a directory rename to a path that your +# side renamed away, then ignore that particular rename from the other +# side of history for any implicit directory renames. +########################################################################### + +########################################################################### +# SECTION 10: Handling untracked files +# +# unpack_trees(), upon which the recursive merge algorithm is based, aborts +# the operation if untracked or dirty files would be deleted or overwritten +# by the merge. Unfortunately, unpack_trees() does not understand renames, +# and if it doesn't abort, then it muddies up the working directory before +# we even get to the point of detecting renames, so we need some special +# handling, at least in the case of directory renames. +########################################################################### + +# Testcase 10a, Overwrite untracked: normal rename/delete +# Commit O: z/{b,c_1} +# Commit A: z/b + untracked z/c + untracked z/d +# Commit B: z/{b,d_1} +# Expected: Aborted Merge + +# ERROR_MSG(untracked working tree files would be overwritten by merge) + +test_expect_success '10a-setup: Overwrite untracked with normal rename/delete' ' + test_create_repo 10a && + ( + cd 10a && + + mkdir z && + echo b >z/b && + echo c >z/c && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git rm z/c && + test_tick && + git commit -m "A" && + + git checkout B && + git mv z/c z/d && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '10a-check: Overwrite untracked with normal rename/delete' ' + ( + cd 10a && + + git checkout A^0 && + echo very >z/c && + echo important >z/d && + + test_must_fail git merge -s recursive B^0 >out 2>err && + test_i18ngrep "The following untracked working tree files would be overwritten by merge" err && + + git ls-files -s >out && + test_line_count = 1 out && + git ls-files -o >out && + test_line_count = 4 out && + + echo very >expect && + test_cmp expect z/c && + + echo important >expect && + test_cmp expect z/d && + + git rev-parse HEAD:z/b >actual && + git rev-parse O:z/b >expect && + test_cmp expect actual + ) +' + +# Testcase 10b, Overwrite untracked: dir rename + delete +# Commit O: z/{b,c_1} +# Commit A: y/b + untracked y/{c,d,e} +# Commit B: z/{b,d_1,e} +# Expected: Failed Merge; y/b + untracked y/c + untracked y/d on disk + +# z/c_1 -> z/d_1 rename recorded at stage 3 for y/d + +# ERROR_MSG(refusing to lose untracked file at 'y/d') + +test_expect_success '10b-setup: Overwrite untracked with dir rename + delete' ' + test_create_repo 10b && + ( + cd 10b && + + mkdir z && + echo b >z/b && + echo c >z/c && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git rm z/c && + git mv z/ y/ && + test_tick && + git commit -m "A" && + + git checkout B && + git mv z/c z/d && + echo e >z/e && + git add z/e && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '10b-check: Overwrite untracked with dir rename + delete' ' + ( + cd 10b && + + git checkout A^0 && + echo very >y/c && + echo important >y/d && + echo contents >y/e && + + test_must_fail git merge -s recursive B^0 >out 2>err && + test_i18ngrep "CONFLICT (rename/delete).*Version B\^0 of y/d left in tree at y/d~B\^0" out && + test_i18ngrep "Error: Refusing to lose untracked file at y/e; writing to y/e~B\^0 instead" out && + + git ls-files -s >out && + test_line_count = 3 out && + git ls-files -u >out && + test_line_count = 2 out && + git ls-files -o >out && + test_line_count = 5 out && + + git rev-parse >actual \ + :0:y/b :3:y/d :3:y/e && + git rev-parse >expect \ + O:z/b O:z/c B:z/e && + test_cmp expect actual && + + echo very >expect && + test_cmp expect y/c && + + echo important >expect && + test_cmp expect y/d && + + echo contents >expect && + test_cmp expect y/e + ) +' + +# Testcase 10c, Overwrite untracked: dir rename/rename(1to2) +# Commit O: z/{a,b}, x/{c,d} +# Commit A: y/{a,b}, w/c, x/d + different untracked y/c +# Commit B: z/{a,b,c}, x/d +# Expected: Failed Merge; y/{a,b} + x/d + untracked y/c + +# CONFLICT(rename/rename) x/c -> w/c vs y/c + +# y/c~B^0 + +# ERROR_MSG(Refusing to lose untracked file at y/c) + +test_expect_success '10c-setup: Overwrite untracked with dir rename/rename(1to2)' ' + test_create_repo 10c && + ( + cd 10c && + + mkdir z x && + echo a >z/a && + echo b >z/b && + echo c >x/c && + echo d >x/d && + git add z x && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + mkdir w && + git mv x/c w/c && + git mv z/ y/ && + test_tick && + git commit -m "A" && + + git checkout B && + git mv x/c z/ && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '10c-check: Overwrite untracked with dir rename/rename(1to2)' ' + ( + cd 10c && + + git checkout A^0 && + echo important >y/c && + + test_must_fail git merge -s recursive B^0 >out 2>err && + test_i18ngrep "CONFLICT (rename/rename)" out && + test_i18ngrep "Refusing to lose untracked file at y/c; adding as y/c~B\^0 instead" out && + + git ls-files -s >out && + test_line_count = 6 out && + git ls-files -u >out && + test_line_count = 3 out && + git ls-files -o >out && + test_line_count = 3 out && + + git rev-parse >actual \ + :0:y/a :0:y/b :0:x/d :1:x/c :2:w/c :3:y/c && + git rev-parse >expect \ + O:z/a O:z/b O:x/d O:x/c O:x/c O:x/c && + test_cmp expect actual && + + git hash-object y/c~B^0 >actual && + git rev-parse O:x/c >expect && + test_cmp expect actual && + + echo important >expect && + test_cmp expect y/c + ) +' + +# Testcase 10d, Delete untracked w/ dir rename/rename(2to1) +# Commit O: z/{a,b,c_1}, x/{d,e,f_2} +# Commit A: y/{a,b}, x/{d,e,f_2,wham_1} + untracked y/wham +# Commit B: z/{a,b,c_1,wham_2}, y/{d,e} +# Expected: Failed Merge; y/{a,b,d,e} + untracked y/{wham,wham~B^0,wham~HEAD}+ +# CONFLICT(rename/rename) z/c_1 vs x/f_2 -> y/wham +# ERROR_MSG(Refusing to lose untracked file at y/wham) + +test_expect_success '10d-setup: Delete untracked with dir rename/rename(2to1)' ' + test_create_repo 10d && + ( + cd 10d && + + mkdir z x && + echo a >z/a && + echo b >z/b && + echo c >z/c && + echo d >x/d && + echo e >x/e && + echo f >x/f && + git add z x && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z/c x/wham && + git mv z/ y/ && + test_tick && + git commit -m "A" && + + git checkout B && + git mv x/f z/wham && + git mv x/ y/ && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '10d-check: Delete untracked with dir rename/rename(2to1)' ' + ( + cd 10d && + + git checkout A^0 && + echo important >y/wham && + + test_must_fail git merge -s recursive B^0 >out 2>err && + test_i18ngrep "CONFLICT (rename/rename)" out && + test_i18ngrep "Refusing to lose untracked file at y/wham" out && + + git ls-files -s >out && + test_line_count = 6 out && + git ls-files -u >out && + test_line_count = 2 out && + git ls-files -o >out && + test_line_count = 4 out && + + git rev-parse >actual \ + :0:y/a :0:y/b :0:y/d :0:y/e :2:y/wham :3:y/wham && + git rev-parse >expect \ + O:z/a O:z/b O:x/d O:x/e O:z/c O:x/f && + test_cmp expect actual && + + test_must_fail git rev-parse :1:y/wham && + + echo important >expect && + test_cmp expect y/wham && + + git hash-object >actual \ + y/wham~B^0 y/wham~HEAD && + git rev-parse >expect \ + O:x/f O:z/c && + test_cmp expect actual + ) +' + +# Testcase 10e, Does git complain about untracked file that's not in the way? +# Commit O: z/{a,b} +# Commit A: y/{a,b} + untracked z/c +# Commit B: z/{a,b,c} +# Expected: y/{a,b,c} + untracked z/c + +test_expect_success '10e-setup: Does git complain about untracked file that is not really in the way?' ' + test_create_repo 10e && + ( + cd 10e && + + mkdir z && + echo a >z/a && + echo b >z/b && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z/ y/ && + test_tick && + git commit -m "A" && + + git checkout B && + echo c >z/c && + git add z/c && + test_tick && + git commit -m "B" + ) +' + +test_expect_failure '10e-check: Does git complain about untracked file that is not really in the way?' ' + ( + cd 10e && + + git checkout A^0 && + mkdir z && + echo random >z/c && + + git merge -s recursive B^0 >out 2>err && + test_i18ngrep ! "following untracked working tree files would be overwritten by merge" err && + + git ls-files -s >out && + test_line_count = 3 out && + git ls-files -u >out && + test_line_count = 0 out && + git ls-files -o >out && + test_line_count = 3 out && + + git rev-parse >actual \ + :0:y/a :0:y/b :0:y/c && + git rev-parse >expect \ + O:z/a O:z/b B:z/c && + test_cmp expect actual && + + echo random >expect && + test_cmp expect z/c + ) +' + +########################################################################### +# SECTION 11: Handling dirty (not up-to-date) files +# +# unpack_trees(), upon which the recursive merge algorithm is based, aborts +# the operation if untracked or dirty files would be deleted or overwritten +# by the merge. Unfortunately, unpack_trees() does not understand renames, +# and if it doesn't abort, then it muddies up the working directory before +# we even get to the point of detecting renames, so we need some special +# handling. This was true even of normal renames, but there are additional +# codepaths that need special handling with directory renames. Add +# testcases for both renamed-by-directory-rename-detection and standard +# rename cases. +########################################################################### + +# Testcase 11a, Avoid losing dirty contents with simple rename +# Commit O: z/{a,b_v1}, +# Commit A: z/{a,c_v1}, and z/c_v1 has uncommitted mods +# Commit B: z/{a,b_v2} +# Expected: ERROR_MSG(Refusing to lose dirty file at z/c) + +# z/a, staged version of z/c has sha1sum matching B:z/b_v2, +# z/c~HEAD with contents of B:z/b_v2, +# z/c with uncommitted mods on top of A:z/c_v1 + +test_expect_success '11a-setup: Avoid losing dirty contents with simple rename' ' + test_create_repo 11a && + ( + cd 11a && + + mkdir z && + echo a >z/a && + test_seq 1 10 >z/b && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z/b z/c && + test_tick && + git commit -m "A" && + + git checkout B && + echo 11 >>z/b && + git add z/b && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '11a-check: Avoid losing dirty contents with simple rename' ' + ( + cd 11a && + + git checkout A^0 && + echo stuff >>z/c && + + test_must_fail git merge -s recursive B^0 >out 2>err && + test_i18ngrep "Refusing to lose dirty file at z/c" out && + + test_seq 1 10 >expected && + echo stuff >>expected && + test_cmp expected z/c && + + git ls-files -s >out && + test_line_count = 2 out && + git ls-files -u >out && + test_line_count = 1 out && + git ls-files -o >out && + test_line_count = 4 out && + + git rev-parse >actual \ + :0:z/a :2:z/c && + git rev-parse >expect \ + O:z/a B:z/b && + test_cmp expect actual && + + git hash-object z/c~HEAD >actual && + git rev-parse B:z/b >expect && + test_cmp expect actual + ) +' + +# Testcase 11b, Avoid losing dirty file involved in directory rename +# Commit O: z/a, x/{b,c_v1} +# Commit A: z/{a,c_v1}, x/b, and z/c_v1 has uncommitted mods +# Commit B: y/a, x/{b,c_v2} +# Expected: y/{a,c_v2}, x/b, z/c_v1 with uncommitted mods untracked, +# ERROR_MSG(Refusing to lose dirty file at z/c) + + +test_expect_success '11b-setup: Avoid losing dirty file involved in directory rename' ' + test_create_repo 11b && + ( + cd 11b && + + mkdir z x && + echo a >z/a && + echo b >x/b && + test_seq 1 10 >x/c && + git add z x && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv x/c z/c && + test_tick && + git commit -m "A" && + + git checkout B && + git mv z y && + echo 11 >>x/c && + git add x/c && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '11b-check: Avoid losing dirty file involved in directory rename' ' + ( + cd 11b && + + git checkout A^0 && + echo stuff >>z/c && + + git merge -s recursive B^0 >out 2>err && + test_i18ngrep "Refusing to lose dirty file at z/c" out && + + grep -q stuff z/c && + test_seq 1 10 >expected && + echo stuff >>expected && + test_cmp expected z/c && + + git ls-files -s >out && + test_line_count = 3 out && + git ls-files -u >out && + test_line_count = 0 out && + git ls-files -m >out && + test_line_count = 0 out && + git ls-files -o >out && + test_line_count = 4 out && + + git rev-parse >actual \ + :0:x/b :0:y/a :0:y/c && + git rev-parse >expect \ + O:x/b O:z/a B:x/c && + test_cmp expect actual && + + git hash-object y/c >actual && + git rev-parse B:x/c >expect && + test_cmp expect actual + ) +' + +# Testcase 11c, Avoid losing not-up-to-date with rename + D/F conflict +# Commit O: y/a, x/{b,c_v1} +# Commit A: y/{a,c_v1}, x/b, and y/c_v1 has uncommitted mods +# Commit B: y/{a,c/d}, x/{b,c_v2} +# Expected: Abort_msg("following files would be overwritten by merge") + +# y/c left untouched (still has uncommitted mods) + +test_expect_success '11c-setup: Avoid losing not-uptodate with rename + D/F conflict' ' + test_create_repo 11c && + ( + cd 11c && + + mkdir y x && + echo a >y/a && + echo b >x/b && + test_seq 1 10 >x/c && + git add y x && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv x/c y/c && + test_tick && + git commit -m "A" && + + git checkout B && + mkdir y/c && + echo d >y/c/d && + echo 11 >>x/c && + git add x/c y/c/d && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '11c-check: Avoid losing not-uptodate with rename + D/F conflict' ' + ( + cd 11c && + + git checkout A^0 && + echo stuff >>y/c && + + test_must_fail git merge -s recursive B^0 >out 2>err && + test_i18ngrep "following files would be overwritten by merge" err && + + grep -q stuff y/c && + test_seq 1 10 >expected && + echo stuff >>expected && + test_cmp expected y/c && + + git ls-files -s >out && + test_line_count = 3 out && + git ls-files -u >out && + test_line_count = 0 out && + git ls-files -m >out && + test_line_count = 1 out && + git ls-files -o >out && + test_line_count = 3 out + ) +' + +# Testcase 11d, Avoid losing not-up-to-date with rename + D/F conflict +# Commit O: z/a, x/{b,c_v1} +# Commit A: z/{a,c_v1}, x/b, and z/c_v1 has uncommitted mods +# Commit B: y/{a,c/d}, x/{b,c_v2} +# Expected: D/F: y/c_v2 vs y/c/d) + +# Warning_Msg("Refusing to lose dirty file at z/c) + +# y/{a,c~HEAD,c/d}, x/b, now-untracked z/c_v1 with uncommitted mods + +test_expect_success '11d-setup: Avoid losing not-uptodate with rename + D/F conflict' ' + test_create_repo 11d && + ( + cd 11d && + + mkdir z x && + echo a >z/a && + echo b >x/b && + test_seq 1 10 >x/c && + git add z x && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv x/c z/c && + test_tick && + git commit -m "A" && + + git checkout B && + git mv z y && + mkdir y/c && + echo d >y/c/d && + echo 11 >>x/c && + git add x/c y/c/d && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '11d-check: Avoid losing not-uptodate with rename + D/F conflict' ' + ( + cd 11d && + + git checkout A^0 && + echo stuff >>z/c && + + test_must_fail git merge -s recursive B^0 >out 2>err && + test_i18ngrep "Refusing to lose dirty file at z/c" out && + + grep -q stuff z/c && + test_seq 1 10 >expected && + echo stuff >>expected && + test_cmp expected z/c + + git ls-files -s >out && + test_line_count = 4 out && + git ls-files -u >out && + test_line_count = 1 out && + git ls-files -o >out && + test_line_count = 5 out && + + git rev-parse >actual \ + :0:x/b :0:y/a :0:y/c/d :3:y/c && + git rev-parse >expect \ + O:x/b O:z/a B:y/c/d B:x/c && + test_cmp expect actual && + + git hash-object y/c~HEAD >actual && + git rev-parse B:x/c >expect && + test_cmp expect actual + ) +' + +# Testcase 11e, Avoid deleting not-up-to-date with dir rename/rename(1to2)/add +# Commit O: z/{a,b}, x/{c_1,d} +# Commit A: y/{a,b,c_2}, x/d, w/c_1, and y/c_2 has uncommitted mods +# Commit B: z/{a,b,c_1}, x/d +# Expected: Failed Merge; y/{a,b} + x/d + +# CONFLICT(rename/rename) x/c_1 -> w/c_1 vs y/c_1 + +# ERROR_MSG(Refusing to lose dirty file at y/c) +# y/c~B^0 has O:x/c_1 contents +# y/c~HEAD has A:y/c_2 contents +# y/c has dirty file from before merge + +test_expect_success '11e-setup: Avoid deleting not-uptodate with dir rename/rename(1to2)/add' ' + test_create_repo 11e && + ( + cd 11e && + + mkdir z x && + echo a >z/a && + echo b >z/b && + echo c >x/c && + echo d >x/d && + git add z x && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z/ y/ && + echo different >y/c && + mkdir w && + git mv x/c w/ && + git add y/c && + test_tick && + git commit -m "A" && + + git checkout B && + git mv x/c z/ && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '11e-check: Avoid deleting not-uptodate with dir rename/rename(1to2)/add' ' + ( + cd 11e && + + git checkout A^0 && + echo mods >>y/c && + + test_must_fail git merge -s recursive B^0 >out 2>err && + test_i18ngrep "CONFLICT (rename/rename)" out && + test_i18ngrep "Refusing to lose dirty file at y/c" out && + + git ls-files -s >out && + test_line_count = 7 out && + git ls-files -u >out && + test_line_count = 4 out && + git ls-files -o >out && + test_line_count = 4 out && + + echo different >expected && + echo mods >>expected && + test_cmp expected y/c && + + git rev-parse >actual \ + :0:y/a :0:y/b :0:x/d :1:x/c :2:w/c :2:y/c :3:y/c && + git rev-parse >expect \ + O:z/a O:z/b O:x/d O:x/c O:x/c A:y/c O:x/c && + test_cmp expect actual && + + git hash-object >actual \ + y/c~B^0 y/c~HEAD && + git rev-parse >expect \ + O:x/c A:y/c && + test_cmp expect actual + ) +' + +# Testcase 11f, Avoid deleting not-up-to-date w/ dir rename/rename(2to1) +# Commit O: z/{a,b}, x/{c_1,d_2} +# Commit A: y/{a,b,wham_1}, x/d_2, except y/wham has uncommitted mods +# Commit B: z/{a,b,wham_2}, x/c_1 +# Expected: Failed Merge; y/{a,b} + untracked y/{wham~B^0,wham~B^HEAD} + +# y/wham with dirty changes from before merge + +# CONFLICT(rename/rename) x/c vs x/d -> y/wham +# ERROR_MSG(Refusing to lose dirty file at y/wham) + +test_expect_success '11f-setup: Avoid deleting not-uptodate with dir rename/rename(2to1)' ' + test_create_repo 11f && + ( + cd 11f && + + mkdir z x && + echo a >z/a && + echo b >z/b && + test_seq 1 10 >x/c && + echo d >x/d && + git add z x && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z/ y/ && + git mv x/c y/wham && + test_tick && + git commit -m "A" && + + git checkout B && + git mv x/d z/wham && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '11f-check: Avoid deleting not-uptodate with dir rename/rename(2to1)' ' + ( + cd 11f && + + git checkout A^0 && + echo important >>y/wham && + + test_must_fail git merge -s recursive B^0 >out 2>err && + test_i18ngrep "CONFLICT (rename/rename)" out && + test_i18ngrep "Refusing to lose dirty file at y/wham" out && + + git ls-files -s >out && + test_line_count = 4 out && + git ls-files -u >out && + test_line_count = 2 out && + git ls-files -o >out && + test_line_count = 4 out && + + test_seq 1 10 >expected && + echo important >>expected && + test_cmp expected y/wham && + + test_must_fail git rev-parse :1:y/wham && + git hash-object >actual \ + y/wham~B^0 y/wham~HEAD && + git rev-parse >expect \ + O:x/d O:x/c && + test_cmp expect actual && + + git rev-parse >actual \ + :0:y/a :0:y/b :2:y/wham :3:y/wham && + git rev-parse >expect \ + O:z/a O:z/b O:x/c O:x/d && + test_cmp expect actual + ) +' + +########################################################################### +# SECTION 12: Everything else +# +# Tests suggested by others. Tests added after implementation completed +# and submitted. Grab bag. +########################################################################### + +# Testcase 12a, Moving one directory hierarchy into another +# (Related to testcase 9a) +# Commit O: node1/{leaf1,leaf2}, node2/{leaf3,leaf4} +# Commit A: node1/{leaf1,leaf2,node2/{leaf3,leaf4}} +# Commit B: node1/{leaf1,leaf2,leaf5}, node2/{leaf3,leaf4,leaf6} +# Expected: node1/{leaf1,leaf2,leaf5,node2/{leaf3,leaf4,leaf6}} + +test_expect_success '12a-setup: Moving one directory hierarchy into another' ' + test_create_repo 12a && + ( + cd 12a && + + mkdir -p node1 node2 && + echo leaf1 >node1/leaf1 && + echo leaf2 >node1/leaf2 && + echo leaf3 >node2/leaf3 && + echo leaf4 >node2/leaf4 && + git add node1 node2 && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv node2/ node1/ && + test_tick && + git commit -m "A" && + + git checkout B && + echo leaf5 >node1/leaf5 && + echo leaf6 >node2/leaf6 && + git add node1 node2 && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '12a-check: Moving one directory hierarchy into another' ' + ( + cd 12a && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 6 out && + + git rev-parse >actual \ + HEAD:node1/leaf1 HEAD:node1/leaf2 HEAD:node1/leaf5 \ + HEAD:node1/node2/leaf3 \ + HEAD:node1/node2/leaf4 \ + HEAD:node1/node2/leaf6 && + git rev-parse >expect \ + O:node1/leaf1 O:node1/leaf2 B:node1/leaf5 \ + O:node2/leaf3 \ + O:node2/leaf4 \ + B:node2/leaf6 && + test_cmp expect actual + ) +' + +# Testcase 12b, Moving two directory hierarchies into each other +# (Related to testcases 1c and 12c) +# Commit O: node1/{leaf1, leaf2}, node2/{leaf3, leaf4} +# Commit A: node1/{leaf1, leaf2, node2/{leaf3, leaf4}} +# Commit B: node2/{leaf3, leaf4, node1/{leaf1, leaf2}} +# Expected: node1/node2/node1/{leaf1, leaf2}, +# node2/node1/node2/{leaf3, leaf4} +# NOTE: Without directory renames, we would expect +# node2/node1/{leaf1, leaf2}, +# node1/node2/{leaf3, leaf4} +# with directory rename detection, we note that +# commit A renames node2/ -> node1/node2/ +# commit B renames node1/ -> node2/node1/ +# therefore, applying those directory renames to the initial result +# (making all four paths experience a transitive renaming), yields +# the expected result. +# +# You may ask, is it weird to have two directories rename each other? +# To which, I can do no more than shrug my shoulders and say that +# even simple rules give weird results when given weird inputs. + +test_expect_success '12b-setup: Moving one directory hierarchy into another' ' + test_create_repo 12b && + ( + cd 12b && + + mkdir -p node1 node2 && + echo leaf1 >node1/leaf1 && + echo leaf2 >node1/leaf2 && + echo leaf3 >node2/leaf3 && + echo leaf4 >node2/leaf4 && + git add node1 node2 && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv node2/ node1/ && + test_tick && + git commit -m "A" && + + git checkout B && + git mv node1/ node2/ && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '12b-check: Moving one directory hierarchy into another' ' + ( + cd 12b && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 4 out && + + git rev-parse >actual \ + HEAD:node1/node2/node1/leaf1 \ + HEAD:node1/node2/node1/leaf2 \ + HEAD:node2/node1/node2/leaf3 \ + HEAD:node2/node1/node2/leaf4 && + git rev-parse >expect \ + O:node1/leaf1 \ + O:node1/leaf2 \ + O:node2/leaf3 \ + O:node2/leaf4 && + test_cmp expect actual + ) +' + +# Testcase 12c, Moving two directory hierarchies into each other w/ content merge +# (Related to testcase 12b) +# Commit O: node1/{ leaf1_1, leaf2_1}, node2/{leaf3_1, leaf4_1} +# Commit A: node1/{ leaf1_2, leaf2_2, node2/{leaf3_2, leaf4_2}} +# Commit B: node2/{node1/{leaf1_3, leaf2_3}, leaf3_3, leaf4_3} +# Expected: Content merge conflicts for each of: +# node1/node2/node1/{leaf1, leaf2}, +# node2/node1/node2/{leaf3, leaf4} +# NOTE: This is *exactly* like 12c, except that every path is modified on +# each side of the merge. + +test_expect_success '12c-setup: Moving one directory hierarchy into another w/ content merge' ' + test_create_repo 12c && + ( + cd 12c && + + mkdir -p node1 node2 && + printf "1\n2\n3\n4\n5\n6\n7\n8\nleaf1\n" >node1/leaf1 && + printf "1\n2\n3\n4\n5\n6\n7\n8\nleaf2\n" >node1/leaf2 && + printf "1\n2\n3\n4\n5\n6\n7\n8\nleaf3\n" >node2/leaf3 && + printf "1\n2\n3\n4\n5\n6\n7\n8\nleaf4\n" >node2/leaf4 && + git add node1 node2 && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv node2/ node1/ && + for i in `git ls-files`; do echo side A >>$i; done && + git add -u && + test_tick && + git commit -m "A" && + + git checkout B && + git mv node1/ node2/ && + for i in `git ls-files`; do echo side B >>$i; done && + git add -u && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '12c-check: Moving one directory hierarchy into another w/ content merge' ' + ( + cd 12c && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 && + + git ls-files -u >out && + test_line_count = 12 out && + + git rev-parse >actual \ + :1:node1/node2/node1/leaf1 \ + :1:node1/node2/node1/leaf2 \ + :1:node2/node1/node2/leaf3 \ + :1:node2/node1/node2/leaf4 \ + :2:node1/node2/node1/leaf1 \ + :2:node1/node2/node1/leaf2 \ + :2:node2/node1/node2/leaf3 \ + :2:node2/node1/node2/leaf4 \ + :3:node1/node2/node1/leaf1 \ + :3:node1/node2/node1/leaf2 \ + :3:node2/node1/node2/leaf3 \ + :3:node2/node1/node2/leaf4 && + git rev-parse >expect \ + O:node1/leaf1 \ + O:node1/leaf2 \ + O:node2/leaf3 \ + O:node2/leaf4 \ + A:node1/leaf1 \ + A:node1/leaf2 \ + A:node1/node2/leaf3 \ + A:node1/node2/leaf4 \ + B:node2/node1/leaf1 \ + B:node2/node1/leaf2 \ + B:node2/leaf3 \ + B:node2/leaf4 && + test_cmp expect actual + ) +' + +test_done diff --git a/t/t6046-merge-skip-unneeded-updates.sh b/t/t6046-merge-skip-unneeded-updates.sh new file mode 100755 index 0000000000..fcefffcaec --- /dev/null +++ b/t/t6046-merge-skip-unneeded-updates.sh @@ -0,0 +1,761 @@ +#!/bin/sh + +test_description="merge cases" + +# The setup for all of them, pictorially, is: +# +# A +# o +# / \ +# O o ? +# \ / +# o +# B +# +# To help make it easier to follow the flow of tests, they have been +# divided into sections and each test will start with a quick explanation +# of what commits O, A, and B contain. +# +# Notation: +# z/{b,c} means files z/b and z/c both exist +# x/d_1 means file x/d exists with content d1. (Purpose of the +# underscore notation is to differentiate different +# files that might be renamed into each other's paths.) + +. ./test-lib.sh + + +########################################################################### +# SECTION 1: Cases involving no renames (one side has subset of changes of +# the other side) +########################################################################### + +# Testcase 1a, Changes on A, subset of changes on B +# Commit O: b_1 +# Commit A: b_2 +# Commit B: b_3 +# Expected: b_2 + +test_expect_success '1a-setup: Modify(A)/Modify(B), change on B subset of A' ' + test_create_repo 1a && + ( + cd 1a && + + test_write_lines 1 2 3 4 5 6 7 8 9 10 >b && + git add b && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + test_write_lines 1 2 3 4 5 5.5 6 7 8 9 10 10.5 >b && + git add b && + test_tick && + git commit -m "A" && + + git checkout B && + test_write_lines 1 2 3 4 5 5.5 6 7 8 9 10 >b && + git add b && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '1a-check-L: Modify(A)/Modify(B), change on B subset of A' ' + test_when_finished "git -C 1a reset --hard" && + test_when_finished "git -C 1a clean -fd" && + ( + cd 1a && + + git checkout A^0 && + + test-tool chmtime =31337 b && + test-tool chmtime -v +0 b >expected-mtime && + + GIT_MERGE_VERBOSITY=3 git merge -s recursive B^0 >out 2>err && + + test_i18ngrep "Skipped b" out && + test_must_be_empty err && + + test-tool chmtime -v +0 b >actual-mtime && + test_cmp expected-mtime actual-mtime && + + git ls-files -s >index_files && + test_line_count = 1 index_files && + + git rev-parse >actual HEAD:b && + git rev-parse >expect A:b && + test_cmp expect actual && + + git hash-object b >actual && + git rev-parse A:b >expect && + test_cmp expect actual + ) +' + +test_expect_success '1a-check-R: Modify(A)/Modify(B), change on B subset of A' ' + test_when_finished "git -C 1a reset --hard" && + test_when_finished "git -C 1a clean -fd" && + ( + cd 1a && + + git checkout B^0 && + + GIT_MERGE_VERBOSITY=3 git merge -s recursive A^0 >out 2>err && + + test_i18ngrep "Auto-merging b" out && + test_must_be_empty err && + + git ls-files -s >index_files && + test_line_count = 1 index_files && + + git rev-parse >actual HEAD:b && + git rev-parse >expect A:b && + test_cmp expect actual && + + git hash-object b >actual && + git rev-parse A:b >expect && + test_cmp expect actual + ) +' + + +########################################################################### +# SECTION 2: Cases involving basic renames +########################################################################### + +# Testcase 2a, Changes on A, rename on B +# Commit O: b_1 +# Commit A: b_2 +# Commit B: c_1 +# Expected: c_2 + +test_expect_success '2a-setup: Modify(A)/rename(B)' ' + test_create_repo 2a && + ( + cd 2a && + + test_seq 1 10 >b && + git add b && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + test_seq 1 11 >b && + git add b && + test_tick && + git commit -m "A" && + + git checkout B && + git mv b c && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '2a-check-L: Modify/rename, merge into modify side' ' + test_when_finished "git -C 2a reset --hard" && + test_when_finished "git -C 2a clean -fd" && + ( + cd 2a && + + git checkout A^0 && + + GIT_MERGE_VERBOSITY=3 git merge -s recursive B^0 >out 2>err && + + test_i18ngrep ! "Skipped c" out && + test_must_be_empty err && + + git ls-files -s >index_files && + test_line_count = 1 index_files && + + git rev-parse >actual HEAD:c && + git rev-parse >expect A:b && + test_cmp expect actual && + + git hash-object c >actual && + git rev-parse A:b >expect && + test_cmp expect actual && + + test_must_fail git rev-parse HEAD:b && + test_path_is_missing b + ) +' + +test_expect_success '2a-check-R: Modify/rename, merge into rename side' ' + test_when_finished "git -C 2a reset --hard" && + test_when_finished "git -C 2a clean -fd" && + ( + cd 2a && + + git checkout B^0 && + + GIT_MERGE_VERBOSITY=3 git merge -s recursive A^0 >out 2>err && + + test_i18ngrep ! "Skipped c" out && + test_must_be_empty err && + + git ls-files -s >index_files && + test_line_count = 1 index_files && + + git rev-parse >actual HEAD:c && + git rev-parse >expect A:b && + test_cmp expect actual && + + git hash-object c >actual && + git rev-parse A:b >expect && + test_cmp expect actual && + + test_must_fail git rev-parse HEAD:b && + test_path_is_missing b + ) +' + +# Testcase 2b, Changed and renamed on A, subset of changes on B +# Commit O: b_1 +# Commit A: c_2 +# Commit B: b_3 +# Expected: c_2 + +test_expect_success '2b-setup: Rename+Mod(A)/Mod(B), B mods subset of A' ' + test_create_repo 2b && + ( + cd 2b && + + test_write_lines 1 2 3 4 5 6 7 8 9 10 >b && + git add b && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + test_write_lines 1 2 3 4 5 5.5 6 7 8 9 10 10.5 >b && + git add b && + git mv b c && + test_tick && + git commit -m "A" && + + git checkout B && + test_write_lines 1 2 3 4 5 5.5 6 7 8 9 10 >b && + git add b && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '2b-check-L: Rename+Mod(A)/Mod(B), B mods subset of A' ' + test_when_finished "git -C 2b reset --hard" && + test_when_finished "git -C 2b clean -fd" && + ( + cd 2b && + + git checkout A^0 && + + test-tool chmtime =31337 c && + test-tool chmtime -v +0 c >expected-mtime && + + GIT_MERGE_VERBOSITY=3 git merge -s recursive B^0 >out 2>err && + + test_i18ngrep "Skipped c" out && + test_must_be_empty err && + + test-tool chmtime -v +0 c >actual-mtime && + test_cmp expected-mtime actual-mtime && + + git ls-files -s >index_files && + test_line_count = 1 index_files && + + git rev-parse >actual HEAD:c && + git rev-parse >expect A:c && + test_cmp expect actual && + + git hash-object c >actual && + git rev-parse A:c >expect && + test_cmp expect actual && + + test_must_fail git rev-parse HEAD:b && + test_path_is_missing b + ) +' + +test_expect_success '2b-check-R: Rename+Mod(A)/Mod(B), B mods subset of A' ' + test_when_finished "git -C 2b reset --hard" && + test_when_finished "git -C 2b clean -fd" && + ( + cd 2b && + + git checkout B^0 && + + GIT_MERGE_VERBOSITY=3 git merge -s recursive A^0 >out 2>err && + + test_i18ngrep "Auto-merging c" out && + test_must_be_empty err && + + git ls-files -s >index_files && + test_line_count = 1 index_files && + + git rev-parse >actual HEAD:c && + git rev-parse >expect A:c && + test_cmp expect actual && + + git hash-object c >actual && + git rev-parse A:c >expect && + test_cmp expect actual && + + test_must_fail git rev-parse HEAD:b && + test_path_is_missing b + ) +' + +# Testcase 2c, Changes on A, rename on B +# Commit O: b_1 +# Commit A: b_2, c_3 +# Commit B: c_1 +# Expected: rename/add conflict c_2 vs c_3 +# +# NOTE: Since A modified b_1->b_2, and B renamed b_1->c_1, the threeway +# merge of those files should result in c_2. We then should have a +# rename/add conflict between c_2 and c_3. However, if we note in +# merge_content() that A had the right contents (b_2 has same +# contents as c_2, just at a different name), and that A had the +# right path present (c_3 existed) and thus decides that it can +# skip the update, then we're in trouble. This test verifies we do +# not make that particular mistake. + +test_expect_success '2c-setup: Modify b & add c VS rename b->c' ' + test_create_repo 2c && + ( + cd 2c && + + test_seq 1 10 >b && + git add b && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + test_seq 1 11 >b && + echo whatever >c && + git add b c && + test_tick && + git commit -m "A" && + + git checkout B && + git mv b c && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '2c-check: Modify b & add c VS rename b->c' ' + ( + cd 2c && + + git checkout A^0 && + + GIT_MERGE_VERBOSITY=3 test_must_fail git merge -s recursive B^0 >out 2>err && + + test_i18ngrep "CONFLICT (rename/add): Rename b->c" out && + test_i18ngrep ! "Skipped c" out && + test_must_be_empty err + + # FIXME: rename/add conflicts are horribly broken right now; + # when I get back to my patch series fixing it and + # rename/rename(2to1) conflicts to bring them in line with + # how add/add conflicts behave, then checks like the below + # could be added. But that patch series is waiting until + # the rename-directory-detection series lands, which this + # is part of. And in the mean time, I do not want to further + # enforce broken behavior. So for now, the main test is the + # one above that err is an empty file. + + #git ls-files -s >index_files && + #test_line_count = 2 index_files && + + #git rev-parse >actual :2:c :3:c && + #git rev-parse >expect A:b A:c && + #test_cmp expect actual && + + #git cat-file -p A:b >>merged && + #git cat-file -p A:c >>merge-me && + #>empty && + #test_must_fail git merge-file \ + # -L "Temporary merge branch 1" \ + # -L "" \ + # -L "Temporary merge branch 2" \ + # merged empty merge-me && + #sed -e "s/^\([<=>]\)/\1\1\1/" merged >merged-internal && + + #git hash-object c >actual && + #git hash-object merged-internal >expect && + #test_cmp expect actual && + + #test_path_is_missing b + ) +' + + +########################################################################### +# SECTION 3: Cases involving directory renames +# +# NOTE: +# Directory renames only apply when one side renames a directory, and the +# other side adds or renames a path into that directory. Applying the +# directory rename to that new path creates a new pathname that didn't +# exist on either side of history. Thus, it is impossible for the +# merge contents to already be at the right path, so all of these checks +# exist just to make sure that updates are not skipped. +########################################################################### + +# Testcase 3a, Change + rename into dir foo on A, dir rename foo->bar on B +# Commit O: bq_1, foo/whatever +# Commit A: foo/{bq_2, whatever} +# Commit B: bq_1, bar/whatever +# Expected: bar/{bq_2, whatever} + +test_expect_success '3a-setup: bq_1->foo/bq_2 on A, foo/->bar/ on B' ' + test_create_repo 3a && + ( + cd 3a && + + mkdir foo && + test_seq 1 10 >bq && + test_write_lines a b c d e f g h i j k >foo/whatever && + git add bq foo/whatever && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + test_seq 1 11 >bq && + git add bq && + git mv bq foo/ && + test_tick && + git commit -m "A" && + + git checkout B && + git mv foo/ bar/ && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '3a-check-L: bq_1->foo/bq_2 on A, foo/->bar/ on B' ' + test_when_finished "git -C 3a reset --hard" && + test_when_finished "git -C 3a clean -fd" && + ( + cd 3a && + + git checkout A^0 && + + GIT_MERGE_VERBOSITY=3 git merge -s recursive B^0 >out 2>err && + + test_i18ngrep ! "Skipped bar/bq" out && + test_must_be_empty err && + + git ls-files -s >index_files && + test_line_count = 2 index_files && + + git rev-parse >actual HEAD:bar/bq HEAD:bar/whatever && + git rev-parse >expect A:foo/bq A:foo/whatever && + test_cmp expect actual && + + git hash-object bar/bq bar/whatever >actual && + git rev-parse A:foo/bq A:foo/whatever >expect && + test_cmp expect actual && + + test_must_fail git rev-parse HEAD:bq HEAD:foo/bq && + test_path_is_missing bq foo/bq foo/whatever + ) +' + +test_expect_success '3a-check-R: bq_1->foo/bq_2 on A, foo/->bar/ on B' ' + test_when_finished "git -C 3a reset --hard" && + test_when_finished "git -C 3a clean -fd" && + ( + cd 3a && + + git checkout B^0 && + + GIT_MERGE_VERBOSITY=3 git merge -s recursive A^0 >out 2>err && + + test_i18ngrep ! "Skipped bar/bq" out && + test_must_be_empty err && + + git ls-files -s >index_files && + test_line_count = 2 index_files && + + git rev-parse >actual HEAD:bar/bq HEAD:bar/whatever && + git rev-parse >expect A:foo/bq A:foo/whatever && + test_cmp expect actual && + + git hash-object bar/bq bar/whatever >actual && + git rev-parse A:foo/bq A:foo/whatever >expect && + test_cmp expect actual && + + test_must_fail git rev-parse HEAD:bq HEAD:foo/bq && + test_path_is_missing bq foo/bq foo/whatever + ) +' + +# Testcase 3b, rename into dir foo on A, dir rename foo->bar + change on B +# Commit O: bq_1, foo/whatever +# Commit A: foo/{bq_1, whatever} +# Commit B: bq_2, bar/whatever +# Expected: bar/{bq_2, whatever} + +test_expect_success '3b-setup: bq_1->foo/bq_2 on A, foo/->bar/ on B' ' + test_create_repo 3b && + ( + cd 3b && + + mkdir foo && + test_seq 1 10 >bq && + test_write_lines a b c d e f g h i j k >foo/whatever && + git add bq foo/whatever && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv bq foo/ && + test_tick && + git commit -m "A" && + + git checkout B && + test_seq 1 11 >bq && + git add bq && + git mv foo/ bar/ && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '3b-check-L: bq_1->foo/bq_2 on A, foo/->bar/ on B' ' + test_when_finished "git -C 3b reset --hard" && + test_when_finished "git -C 3b clean -fd" && + ( + cd 3b && + + git checkout A^0 && + + GIT_MERGE_VERBOSITY=3 git merge -s recursive B^0 >out 2>err && + + test_i18ngrep ! "Skipped bar/bq" out && + test_must_be_empty err && + + git ls-files -s >index_files && + test_line_count = 2 index_files && + + git rev-parse >actual HEAD:bar/bq HEAD:bar/whatever && + git rev-parse >expect B:bq A:foo/whatever && + test_cmp expect actual && + + git hash-object bar/bq bar/whatever >actual && + git rev-parse B:bq A:foo/whatever >expect && + test_cmp expect actual && + + test_must_fail git rev-parse HEAD:bq HEAD:foo/bq && + test_path_is_missing bq foo/bq foo/whatever + ) +' + +test_expect_success '3b-check-R: bq_1->foo/bq_2 on A, foo/->bar/ on B' ' + test_when_finished "git -C 3b reset --hard" && + test_when_finished "git -C 3b clean -fd" && + ( + cd 3b && + + git checkout B^0 && + + GIT_MERGE_VERBOSITY=3 git merge -s recursive A^0 >out 2>err && + + test_i18ngrep ! "Skipped bar/bq" out && + test_must_be_empty err && + + git ls-files -s >index_files && + test_line_count = 2 index_files && + + git rev-parse >actual HEAD:bar/bq HEAD:bar/whatever && + git rev-parse >expect B:bq A:foo/whatever && + test_cmp expect actual && + + git hash-object bar/bq bar/whatever >actual && + git rev-parse B:bq A:foo/whatever >expect && + test_cmp expect actual && + + test_must_fail git rev-parse HEAD:bq HEAD:foo/bq && + test_path_is_missing bq foo/bq foo/whatever + ) +' + +########################################################################### +# SECTION 4: Cases involving dirty changes +########################################################################### + +# Testcase 4a, Changed on A, subset of changes on B, locally modified +# Commit O: b_1 +# Commit A: b_2 +# Commit B: b_3 +# Working copy: b_4 +# Expected: b_2 for merge, b_4 in working copy + +test_expect_success '4a-setup: Change on A, change on B subset of A, dirty mods present' ' + test_create_repo 4a && + ( + cd 4a && + + test_write_lines 1 2 3 4 5 6 7 8 9 10 >b && + git add b && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + test_write_lines 1 2 3 4 5 5.5 6 7 8 9 10 10.5 >b && + git add b && + test_tick && + git commit -m "A" && + + git checkout B && + test_write_lines 1 2 3 4 5 5.5 6 7 8 9 10 >b && + git add b && + test_tick && + git commit -m "B" + ) +' + +# NOTE: For as long as we continue using unpack_trees() without index_only +# set to true, it will error out on a case like this claiming the the locally +# modified file would be overwritten by the merge. Getting this testcase +# correct requires doing the merge in-memory first, then realizing that no +# updates to the file are necessary, and thus that we can just leave the path +# alone. +test_expect_failure '4a-check: Change on A, change on B subset of A, dirty mods present' ' + test_when_finished "git -C 4a reset --hard" && + test_when_finished "git -C 4a clean -fd" && + ( + cd 4a && + + git checkout A^0 && + echo "File rewritten" >b && + + test-tool chmtime =31337 b && + test-tool chmtime -v +0 b >expected-mtime && + + GIT_MERGE_VERBOSITY=3 git merge -s recursive B^0 >out 2>err && + + test_i18ngrep "Skipped b" out && + test_must_be_empty err && + + test-tool chmtime -v +0 b >actual-mtime && + test_cmp expected-mtime actual-mtime && + + git ls-files -s >index_files && + test_line_count = 1 index_files && + + git rev-parse >actual :0:b && + git rev-parse >expect A:b && + test_cmp expect actual && + + git hash-object b >actual && + echo "File rewritten" | git hash-object --stdin >expect && + test_cmp expect actual + ) +' + +# Testcase 4b, Changed+renamed on A, subset of changes on B, locally modified +# Commit O: b_1 +# Commit A: c_2 +# Commit B: b_3 +# Working copy: c_4 +# Expected: c_2 + +test_expect_success '4b-setup: Rename+Mod(A)/Mod(B), change on B subset of A, dirty mods present' ' + test_create_repo 4b && + ( + cd 4b && + + test_write_lines 1 2 3 4 5 6 7 8 9 10 >b && + git add b && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + test_write_lines 1 2 3 4 5 5.5 6 7 8 9 10 10.5 >b && + git add b && + git mv b c && + test_tick && + git commit -m "A" && + + git checkout B && + test_write_lines 1 2 3 4 5 5.5 6 7 8 9 10 >b && + git add b && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '4b-check: Rename+Mod(A)/Mod(B), change on B subset of A, dirty mods present' ' + test_when_finished "git -C 4b reset --hard" && + test_when_finished "git -C 4b clean -fd" && + ( + cd 4b && + + git checkout A^0 && + echo "File rewritten" >c && + + test-tool chmtime =31337 c && + test-tool chmtime -v +0 c >expected-mtime && + + GIT_MERGE_VERBOSITY=3 git merge -s recursive B^0 >out 2>err && + + test_i18ngrep "Skipped c" out && + test_must_be_empty err && + + test-tool chmtime -v +0 c >actual-mtime && + test_cmp expected-mtime actual-mtime && + + git ls-files -s >index_files && + test_line_count = 1 index_files && + + git rev-parse >actual :0:c && + git rev-parse >expect A:c && + test_cmp expect actual && + + git hash-object c >actual && + echo "File rewritten" | git hash-object --stdin >expect && + test_cmp expect actual && + + test_must_fail git rev-parse HEAD:b && + test_path_is_missing b + ) +' + +test_done diff --git a/t/t6050-replace.sh b/t/t6050-replace.sh index c630aba657..aa3e249639 100755 --- a/t/t6050-replace.sh +++ b/t/t6050-replace.sh @@ -4,8 +4,6 @@ # test_description='Tests replace refs functionality' -exec </dev/null - . ./test-lib.sh . "$TEST_DIRECTORY/lib-gpg.sh" @@ -444,4 +442,32 @@ test_expect_success GPG '--graft on a commit with a mergetag' ' git replace -d $HASH10 ' +test_expect_success '--convert-graft-file' ' + git checkout -b with-graft-file && + test_commit root2 && + git reset --hard root2^ && + test_commit root1 && + test_commit after-root1 && + test_tick && + git merge -m merge-root2 root2 && + + : add and convert graft file && + printf "%s\n%s %s\n\n# comment\n%s\n" \ + $(git rev-parse HEAD^^ HEAD^ HEAD^^ HEAD^2) \ + >.git/info/grafts && + git replace --convert-graft-file && + test_path_is_missing .git/info/grafts && + + : verify that the history is now "grafted" && + git rev-list HEAD >out && + test_line_count = 4 out && + + : create invalid graft file and verify that it is not deleted && + test_when_finished "rm -f .git/info/grafts" && + echo $EMPTY_BLOB $EMPTY_TREE >.git/info/grafts && + test_must_fail git replace --convert-graft-file 2>err && + test_i18ngrep "$EMPTY_BLOB $EMPTY_TREE" err && + test_i18ngrep "$EMPTY_BLOB $EMPTY_TREE" .git/info/grafts +' + test_done diff --git a/t/t6500-gc.sh b/t/t6500-gc.sh index d5255dd576..818435f04e 100755 --- a/t/t6500-gc.sh +++ b/t/t6500-gc.sh @@ -5,6 +5,13 @@ test_description='basic git gc tests . ./test-lib.sh +test_expect_success 'setup' ' + # do not let the amount of physical memory affects gc + # behavior, make sure we always pack everything to one pack by + # default + git config gc.bigPackThreshold 2g +' + test_expect_success 'gc empty repository' ' git gc ' @@ -43,6 +50,31 @@ test_expect_success 'gc is not aborted due to a stale symref' ' ) ' +test_expect_success 'gc --keep-largest-pack' ' + test_create_repo keep-pack && + ( + cd keep-pack && + test_commit one && + test_commit two && + test_commit three && + git gc && + ( cd .git/objects/pack && ls *.pack ) >pack-list && + test_line_count = 1 pack-list && + BASE_PACK=.git/objects/pack/pack-*.pack && + test_commit four && + git repack -d && + test_commit five && + git repack -d && + ( cd .git/objects/pack && ls *.pack ) >pack-list && + test_line_count = 3 pack-list && + git gc --keep-largest-pack && + ( cd .git/objects/pack && ls *.pack ) >pack-list && + test_line_count = 2 pack-list && + test_path_is_file $BASE_PACK && + git fsck + ) +' + test_expect_success 'auto gc with too many loose objects does not attempt to create bitmaps' ' test_config gc.auto 3 && test_config gc.autodetach false && diff --git a/t/t7001-mv.sh b/t/t7001-mv.sh index e96cbdb105..cc3fd2baf2 100755 --- a/t/t7001-mv.sh +++ b/t/t7001-mv.sh @@ -495,7 +495,7 @@ test_expect_success 'moving a submodule in nested directories' ' test_cmp expect actual ' -test_expect_failure 'moving nested submodules' ' +test_expect_success 'moving nested submodules' ' git commit -am "cleanup commit" && mkdir sub_nested_nested && (cd sub_nested_nested && diff --git a/t/t7004-tag.sh b/t/t7004-tag.sh index 2aac77af70..d7b319e919 100755 --- a/t/t7004-tag.sh +++ b/t/t7004-tag.sh @@ -363,7 +363,7 @@ test_expect_success 'tag -l <pattern> -l <pattern> works, as our buggy documenta ' test_expect_success 'listing tags in column' ' - COLUMNS=40 git tag -l --column=row >actual && + COLUMNS=41 git tag -l --column=row >actual && cat >expected <<\EOF && a1 aa1 cba t210 t211 v0.2.1 v1.0 v1.0.1 v1.1.3 @@ -1056,7 +1056,18 @@ test_expect_success GPG \ git tag -s -F sigblanknonlfile blanknonlfile-signed-tag && get_tag_msg blanknonlfile-signed-tag >actual && test_cmp expect actual && - git tag -v signed-tag + git tag -v blanknonlfile-signed-tag +' + +test_expect_success GPG 'signed tag with embedded PGP message' ' + cat >msg <<-\EOF && + -----BEGIN PGP MESSAGE----- + + this is not a real PGP message + -----END PGP MESSAGE----- + EOF + git tag -s -F msg confusing-pgp-message && + git tag -v confusing-pgp-message ' # messages with commented lines for signed tags: diff --git a/t/t7005-editor.sh b/t/t7005-editor.sh index 29e5043b94..b2ca77b338 100755 --- a/t/t7005-editor.sh +++ b/t/t7005-editor.sh @@ -111,14 +111,8 @@ do ' done -if echo 'echo space > "$1"' > "e space.sh" -then - # FS supports spaces in filenames - test_set_prereq SPACES_IN_FILENAMES -fi - -test_expect_success SPACES_IN_FILENAMES 'editor with a space' ' - +test_expect_success 'editor with a space' ' + echo "echo space >\$1" >"e space.sh" && chmod a+x "e space.sh" && GIT_EDITOR="./e\ space.sh" git commit --amend && test space = "$(git show -s --pretty=format:%s)" @@ -126,7 +120,7 @@ test_expect_success SPACES_IN_FILENAMES 'editor with a space' ' ' unset GIT_EDITOR -test_expect_success SPACES_IN_FILENAMES 'core.editor with a space' ' +test_expect_success 'core.editor with a space' ' git config core.editor \"./e\ space.sh\" && git commit --amend && diff --git a/t/t7415-submodule-names.sh b/t/t7415-submodule-names.sh new file mode 100755 index 0000000000..a770d92a55 --- /dev/null +++ b/t/t7415-submodule-names.sh @@ -0,0 +1,154 @@ +#!/bin/sh + +test_description='check handling of .. in submodule names + +Exercise the name-checking function on a variety of names, and then give a +real-world setup that confirms we catch this in practice. +' +. ./test-lib.sh +. "$TEST_DIRECTORY"/lib-pack.sh + +test_expect_success 'check names' ' + cat >expect <<-\EOF && + valid + valid/with/paths + EOF + + git submodule--helper check-name >actual <<-\EOF && + valid + valid/with/paths + + ../foo + /../foo + ..\foo + \..\foo + foo/.. + foo/../ + foo\.. + foo\..\ + foo/../bar + EOF + + test_cmp expect actual +' + +test_expect_success 'create innocent subrepo' ' + git init innocent && + git -C innocent commit --allow-empty -m foo +' + +test_expect_success 'submodule add refuses invalid names' ' + test_must_fail \ + git submodule add --name ../../modules/evil "$PWD/innocent" evil +' + +test_expect_success 'add evil submodule' ' + git submodule add "$PWD/innocent" evil && + + mkdir modules && + cp -r .git/modules/evil modules && + write_script modules/evil/hooks/post-checkout <<-\EOF && + echo >&2 "RUNNING POST CHECKOUT" + EOF + + git config -f .gitmodules submodule.evil.update checkout && + git config -f .gitmodules --rename-section \ + submodule.evil submodule.../../modules/evil && + git add modules && + git commit -am evil +' + +# This step seems like it shouldn't be necessary, since the payload is +# contained entirely in the evil submodule. But due to the vagaries of the +# submodule code, checking out the evil module will fail unless ".git/modules" +# exists. Adding another submodule (with a name that sorts before "evil") is an +# easy way to make sure this is the case in the victim clone. +test_expect_success 'add other submodule' ' + git submodule add "$PWD/innocent" another-module && + git add another-module && + git commit -am another +' + +test_expect_success 'clone evil superproject' ' + git clone --recurse-submodules . victim >output 2>&1 && + ! grep "RUNNING POST CHECKOUT" output +' + +test_expect_success 'fsck detects evil superproject' ' + test_must_fail git fsck +' + +test_expect_success 'transfer.fsckObjects detects evil superproject (unpack)' ' + rm -rf dst.git && + git init --bare dst.git && + git -C dst.git config transfer.fsckObjects true && + test_must_fail git push dst.git HEAD +' + +test_expect_success 'transfer.fsckObjects detects evil superproject (index)' ' + rm -rf dst.git && + git init --bare dst.git && + git -C dst.git config transfer.fsckObjects true && + git -C dst.git config transfer.unpackLimit 1 && + test_must_fail git push dst.git HEAD +' + +# Normally our packs contain commits followed by trees followed by blobs. This +# reverses the order, which requires backtracking to find the context of a +# blob. We'll start with a fresh gitmodules-only tree to make it simpler. +test_expect_success 'create oddly ordered pack' ' + git checkout --orphan odd && + git rm -rf --cached . && + git add .gitmodules && + git commit -m odd && + { + pack_header 3 && + pack_obj $(git rev-parse HEAD:.gitmodules) && + pack_obj $(git rev-parse HEAD^{tree}) && + pack_obj $(git rev-parse HEAD) + } >odd.pack && + pack_trailer odd.pack +' + +test_expect_success 'transfer.fsckObjects handles odd pack (unpack)' ' + rm -rf dst.git && + git init --bare dst.git && + test_must_fail git -C dst.git unpack-objects --strict <odd.pack +' + +test_expect_success 'transfer.fsckObjects handles odd pack (index)' ' + rm -rf dst.git && + git init --bare dst.git && + test_must_fail git -C dst.git index-pack --strict --stdin <odd.pack +' + +test_expect_success 'fsck detects symlinked .gitmodules file' ' + git init symlink && + ( + cd symlink && + + # Make the tree directly to avoid index restrictions. + # + # Because symlinks store the target as a blob, choose + # a pathname that could be parsed as a .gitmodules file + # to trick naive non-symlink-aware checking. + tricky="[foo]bar=true" && + content=$(git hash-object -w ../.gitmodules) && + target=$(printf "$tricky" | git hash-object -w --stdin) && + tree=$( + { + printf "100644 blob $content\t$tricky\n" && + printf "120000 blob $target\t.gitmodules\n" + } | git mktree + ) && + commit=$(git commit-tree $tree) && + + # Check not only that we fail, but that it is due to the + # symlink detector; this grep string comes from the config + # variable name and will not be translated. + test_must_fail git fsck 2>output && + grep gitmodulesSymlink output + ) +' + +test_done diff --git a/t/t7607-merge-overwrite.sh b/t/t7607-merge-overwrite.sh index 9c422bcd7c..dd8ab7ede1 100755 --- a/t/t7607-merge-overwrite.sh +++ b/t/t7607-merge-overwrite.sh @@ -92,7 +92,7 @@ test_expect_success 'will not overwrite removed file with staged changes' ' test_cmp important c1.c ' -test_expect_failure 'will not overwrite unstaged changes in renamed file' ' +test_expect_success 'will not overwrite unstaged changes in renamed file' ' git reset --hard c1 && git mv c1.c other.c && git commit -m rename && diff --git a/t/t7700-repack.sh b/t/t7700-repack.sh index 6061a04147..6162e2a8e6 100755 --- a/t/t7700-repack.sh +++ b/t/t7700-repack.sh @@ -4,6 +4,12 @@ test_description='git repack works correctly' . ./test-lib.sh +commit_and_pack() { + test_commit "$@" >/dev/null && + SHA1=$(git pack-objects --all --unpacked --incremental .git/objects/pack/pack </dev/null) && + echo pack-${SHA1}.pack +} + test_expect_success 'objects in packs marked .keep are not repacked' ' echo content1 > file1 && echo content2 > file2 && @@ -194,7 +200,26 @@ test_expect_success 'objects made unreachable by grafts only are kept' ' git reflog expire --expire=$test_tick --expire-unreachable=$test_tick --all && git repack -a -d && git cat-file -t $H1 - ' +' + +test_expect_success 'repack --keep-pack' ' + test_create_repo keep-pack && + ( + cd keep-pack && + P1=$(commit_and_pack 1) && + P2=$(commit_and_pack 2) && + P3=$(commit_and_pack 3) && + P4=$(commit_and_pack 4) && + ls .git/objects/pack/*.pack >old-counts && + test_line_count = 4 old-counts && + git repack -a -d --keep-pack $P1 --keep-pack $P4 && + ls .git/objects/pack/*.pack >new-counts && + grep -q $P1 new-counts && + grep -q $P4 new-counts && + test_line_count = 3 new-counts && + git fsck + ) +' test_done diff --git a/t/t9350-fast-export.sh b/t/t9350-fast-export.sh index d5679ffb87..6a392e87bc 100755 --- a/t/t9350-fast-export.sh +++ b/t/t9350-fast-export.sh @@ -538,4 +538,22 @@ test_expect_success 'when using -C, do not declare copy when source of copy is a test_cmp expected actual ' +test_expect_success 'merge commit gets exported with --import-marks' ' + test_create_repo merging && + ( + cd merging && + test_commit initial && + git checkout -b topic && + test_commit on-topic && + git checkout master && + test_commit on-master && + test_tick && + git merge --no-ff -m Yeah topic && + + echo ":1 $(git rev-parse HEAD^^)" >marks && + git fast-export --import-marks=marks master >out && + grep Yeah out + ) +' + test_done diff --git a/t/test-lib-functions.sh b/t/test-lib-functions.sh index 7d620bf2a9..2b2181dca0 100644 --- a/t/test-lib-functions.sh +++ b/t/test-lib-functions.sh @@ -145,12 +145,28 @@ test_pause () { "$SHELL_PATH" <&6 >&5 2>&7 } -# Wrap git in gdb. Adding this to a command can make it easier to -# understand what is going on in a failing test. +# Wrap git with a debugger. Adding this to a command can make it easier +# to understand what is going on in a failing test. # -# Example: "debug git checkout master". +# Examples: +# debug git checkout master +# debug --debugger=nemiver git $ARGS +# debug -d "valgrind --tool=memcheck --track-origins=yes" git $ARGS debug () { - GIT_TEST_GDB=1 "$@" <&6 >&5 2>&7 + case "$1" in + -d) + GIT_DEBUGGER="$2" && + shift 2 + ;; + --debugger=*) + GIT_DEBUGGER="${1#*=}" && + shift 1 + ;; + *) + GIT_DEBUGGER=1 + ;; + esac && + GIT_DEBUGGER="${GIT_DEBUGGER}" "$@" <&6 >&5 2>&7 } # Call test_commit with the arguments @@ -278,8 +294,20 @@ write_script () { # The single parameter is the prerequisite tag (a simple word, in all # capital letters by convention). +test_unset_prereq () { + ! test_have_prereq "$1" || + satisfied_prereq="${satisfied_prereq% $1 *} ${satisfied_prereq#* $1 }" +} + test_set_prereq () { - satisfied_prereq="$satisfied_prereq$1 " + case "$1" in + !*) + test_unset_prereq "${1#!}" + ;; + *) + satisfied_prereq="$satisfied_prereq$1 " + ;; + esac } satisfied_prereq=" " lazily_testable_prereq= lazily_tested_prereq= diff --git a/t/test-lib.sh b/t/test-lib.sh index ea2bbaaa7a..f3771ab195 100644 --- a/t/test-lib.sh +++ b/t/test-lib.sh @@ -1106,12 +1106,7 @@ test_lazy_prereq UTF8_NFD_TO_NFC ' auml=$(printf "\303\244") aumlcdiar=$(printf "\141\314\210") >"$auml" && - case "$(echo *)" in - "$aumlcdiar") - true ;; - *) - false ;; - esac + test -f "$aumlcdiar" ' test_lazy_prereq AUTOIDENT ' @@ -41,7 +41,7 @@ int gpg_verify_tag(const struct object_id *oid, const char *name_to_report, unsigned long size; int ret; - type = oid_object_info(oid, NULL); + type = oid_object_info(the_repository, oid, NULL); if (type != OBJ_TAG) return error("%s: cannot verify a non-tag object of type %s.", name_to_report ? diff --git a/transport-helper.c b/transport-helper.c index 3f380d87d9..11f1055b47 100644 --- a/transport-helper.c +++ b/transport-helper.c @@ -12,6 +12,7 @@ #include "argv-array.h" #include "refs.h" #include "transport-internal.h" +#include "protocol.h" static int debug; @@ -26,6 +27,7 @@ struct helper_data { option : 1, push : 1, connect : 1, + stateless_connect : 1, signed_tags : 1, check_connectivity : 1, no_disconnect_req : 1, @@ -49,7 +51,7 @@ static void sendline(struct helper_data *helper, struct strbuf *buffer) die_errno("Full write to remote helper failed"); } -static int recvline_fh(FILE *helper, struct strbuf *buffer, const char *name) +static int recvline_fh(FILE *helper, struct strbuf *buffer) { strbuf_reset(buffer); if (debug) @@ -67,7 +69,7 @@ static int recvline_fh(FILE *helper, struct strbuf *buffer, const char *name) static int recvline(struct helper_data *helper, struct strbuf *buffer) { - return recvline_fh(helper->out, buffer, helper->name); + return recvline_fh(helper->out, buffer); } static void write_constant(int fd, const char *str) @@ -188,6 +190,8 @@ static struct child_process *get_helper(struct transport *transport) refspecs[refspec_nr++] = xstrdup(arg); } else if (!strcmp(capname, "connect")) { data->connect = 1; + } else if (!strcmp(capname, "stateless-connect")) { + data->stateless_connect = 1; } else if (!strcmp(capname, "signed-tags")) { data->signed_tags = 1; } else if (skip_prefix(capname, "export-marks ", &arg)) { @@ -545,14 +549,13 @@ static int fetch_with_import(struct transport *transport, return 0; } -static int process_connect_service(struct transport *transport, - const char *name, const char *exec) +static int run_connect(struct transport *transport, struct strbuf *cmdbuf) { struct helper_data *data = transport->data; - struct strbuf cmdbuf = STRBUF_INIT; - struct child_process *helper; - int r, duped, ret = 0; + int ret = 0; + int duped; FILE *input; + struct child_process *helper; helper = get_helper(transport); @@ -568,44 +571,61 @@ static int process_connect_service(struct transport *transport, input = xfdopen(duped, "r"); setvbuf(input, NULL, _IONBF, 0); + sendline(data, cmdbuf); + if (recvline_fh(input, cmdbuf)) + exit(128); + + if (!strcmp(cmdbuf->buf, "")) { + data->no_disconnect_req = 1; + if (debug) + fprintf(stderr, "Debug: Smart transport connection " + "ready.\n"); + ret = 1; + } else if (!strcmp(cmdbuf->buf, "fallback")) { + if (debug) + fprintf(stderr, "Debug: Falling back to dumb " + "transport.\n"); + } else { + die("Unknown response to connect: %s", + cmdbuf->buf); + } + + fclose(input); + return ret; +} + +static int process_connect_service(struct transport *transport, + const char *name, const char *exec) +{ + struct helper_data *data = transport->data; + struct strbuf cmdbuf = STRBUF_INIT; + int ret = 0; + /* * Handle --upload-pack and friends. This is fire and forget... * just warn if it fails. */ if (strcmp(name, exec)) { - r = set_helper_option(transport, "servpath", exec); + int r = set_helper_option(transport, "servpath", exec); if (r > 0) warning("Setting remote service path not supported by protocol."); else if (r < 0) warning("Invalid remote service path."); } - if (data->connect) + if (data->connect) { strbuf_addf(&cmdbuf, "connect %s\n", name); - else - goto exit; - - sendline(data, &cmdbuf); - if (recvline_fh(input, &cmdbuf, name)) - exit(128); - - if (!strcmp(cmdbuf.buf, "")) { - data->no_disconnect_req = 1; - if (debug) - fprintf(stderr, "Debug: Smart transport connection " - "ready.\n"); - ret = 1; - } else if (!strcmp(cmdbuf.buf, "fallback")) { - if (debug) - fprintf(stderr, "Debug: Falling back to dumb " - "transport.\n"); - } else - die("Unknown response to connect: %s", - cmdbuf.buf); + ret = run_connect(transport, &cmdbuf); + } else if (data->stateless_connect && + (get_protocol_version_config() == protocol_v2) && + !strcmp("git-upload-pack", name)) { + strbuf_addf(&cmdbuf, "stateless-connect %s\n", name); + ret = run_connect(transport, &cmdbuf); + if (ret) + transport->stateless_rpc = 1; + } -exit: strbuf_release(&cmdbuf); - fclose(input); return ret; } @@ -1031,7 +1051,8 @@ static int has_attribute(const char *attrs, const char *attr) { } } -static struct ref *get_refs_list(struct transport *transport, int for_push) +static struct ref *get_refs_list(struct transport *transport, int for_push, + const struct argv_array *ref_prefixes) { struct helper_data *data = transport->data; struct child_process *helper; @@ -1044,7 +1065,7 @@ static struct ref *get_refs_list(struct transport *transport, int for_push) if (process_connect(transport, for_push)) { do_take_over(transport); - return transport->vtable->get_refs_list(transport, for_push); + return transport->vtable->get_refs_list(transport, for_push, ref_prefixes); } if (data->push && for_push) diff --git a/transport-internal.h b/transport-internal.h index 3c1a29d727..1cde6258a7 100644 --- a/transport-internal.h +++ b/transport-internal.h @@ -3,6 +3,7 @@ struct ref; struct transport; +struct argv_array; struct transport_vtable { /** @@ -17,11 +18,19 @@ struct transport_vtable { * the transport to try to share connections, for_push is a * hint as to whether the ultimate operation is a push or a fetch. * + * If communicating using protocol v2 a list of prefixes can be + * provided to be sent to the server to enable it to limit the ref + * advertisement. Since ref filtering is done on the server's end, and + * only when using protocol v2, this list will be ignored when not + * using protocol v2 meaning this function can return refs which don't + * match the provided ref_prefixes. + * * If the transport is able to determine the remote hash for * the ref without a huge amount of effort, it should store it * in the ref's old_sha1 field; otherwise it should be all 0. **/ - struct ref *(*get_refs_list)(struct transport *transport, int for_push); + struct ref *(*get_refs_list)(struct transport *transport, int for_push, + const struct argv_array *ref_prefixes); /** * Fetch the objects for the given refs. Note that this gets diff --git a/transport.c b/transport.c index 969645ccb1..6785fcceed 100644 --- a/transport.c +++ b/transport.c @@ -18,7 +18,58 @@ #include "sha1-array.h" #include "sigchain.h" #include "transport-internal.h" +#include "protocol.h" #include "object-store.h" +#include "color.h" + +static int transport_use_color = -1; +static char transport_colors[][COLOR_MAXLEN] = { + GIT_COLOR_RESET, + GIT_COLOR_RED /* REJECTED */ +}; + +enum color_transport { + TRANSPORT_COLOR_RESET = 0, + TRANSPORT_COLOR_REJECTED = 1 +}; + +static int transport_color_config(void) +{ + const char *keys[] = { + "color.transport.reset", + "color.transport.rejected" + }, *key = "color.transport"; + char *value; + int i; + static int initialized; + + if (initialized) + return 0; + initialized = 1; + + if (!git_config_get_string(key, &value)) + transport_use_color = git_config_colorbool(key, value); + + if (!want_color_stderr(transport_use_color)) + return 0; + + for (i = 0; i < ARRAY_SIZE(keys); i++) + if (!git_config_get_string(keys[i], &value)) { + if (!value) + return config_error_nonbool(keys[i]); + if (color_parse(value, transport_colors[i]) < 0) + return -1; + } + + return 0; +} + +static const char *transport_get_color(enum color_transport ix) +{ + if (want_color_stderr(transport_use_color)) + return transport_colors[ix]; + return ""; +} static void set_upstreams(struct transport *transport, struct ref *refs, int pretend) @@ -72,7 +123,9 @@ struct bundle_transport_data { struct bundle_header header; }; -static struct ref *get_refs_from_bundle(struct transport *transport, int for_push) +static struct ref *get_refs_from_bundle(struct transport *transport, + int for_push, + const struct argv_array *ref_prefixes) { struct bundle_transport_data *data = transport->data; struct ref *result = NULL; @@ -118,6 +171,7 @@ struct git_transport_data { struct child_process *conn; int fd[2]; unsigned got_remote_heads : 1; + enum protocol_version version; struct oid_array extra_have; struct oid_array shallow; }; @@ -197,16 +251,35 @@ static int connect_setup(struct transport *transport, int for_push) return 0; } -static struct ref *get_refs_via_connect(struct transport *transport, int for_push) +static struct ref *get_refs_via_connect(struct transport *transport, int for_push, + const struct argv_array *ref_prefixes) { struct git_transport_data *data = transport->data; - struct ref *refs; + struct ref *refs = NULL; + struct packet_reader reader; connect_setup(transport, for_push); - get_remote_heads(data->fd[0], NULL, 0, &refs, - for_push ? REF_NORMAL : 0, - &data->extra_have, - &data->shallow); + + packet_reader_init(&reader, data->fd[0], NULL, 0, + PACKET_READ_CHOMP_NEWLINE | + PACKET_READ_GENTLE_ON_EOF); + + data->version = discover_version(&reader); + switch (data->version) { + case protocol_v2: + get_remote_refs(data->fd[1], &reader, &refs, for_push, + ref_prefixes, transport->server_options); + break; + case protocol_v1: + case protocol_v0: + get_remote_heads(&reader, &refs, + for_push ? REF_NORMAL : 0, + &data->extra_have, + &data->shallow); + break; + case protocol_unknown_version: + BUG("unknown protocol version"); + } data->got_remote_heads = 1; return refs; @@ -217,7 +290,7 @@ static int fetch_refs_via_pack(struct transport *transport, { int ret = 0; struct git_transport_data *data = transport->data; - struct ref *refs; + struct ref *refs = NULL; char *dest = xstrdup(transport->url); struct fetch_pack_args args; struct ref *refs_tmp = NULL; @@ -242,18 +315,30 @@ static int fetch_refs_via_pack(struct transport *transport, args.from_promisor = data->options.from_promisor; args.no_dependents = data->options.no_dependents; args.filter_options = data->options.filter_options; - - if (!data->got_remote_heads) { - connect_setup(transport, 0); - get_remote_heads(data->fd[0], NULL, 0, &refs_tmp, 0, - NULL, &data->shallow); - data->got_remote_heads = 1; + args.stateless_rpc = transport->stateless_rpc; + args.server_options = transport->server_options; + + if (!data->got_remote_heads) + refs_tmp = get_refs_via_connect(transport, 0, NULL); + + switch (data->version) { + case protocol_v2: + refs = fetch_pack(&args, data->fd, data->conn, + refs_tmp ? refs_tmp : transport->remote_refs, + dest, to_fetch, nr_heads, &data->shallow, + &transport->pack_lockfile, data->version); + break; + case protocol_v1: + case protocol_v0: + refs = fetch_pack(&args, data->fd, data->conn, + refs_tmp ? refs_tmp : transport->remote_refs, + dest, to_fetch, nr_heads, &data->shallow, + &transport->pack_lockfile, data->version); + break; + case protocol_unknown_version: + BUG("unknown protocol version"); } - refs = fetch_pack(&args, data->fd, data->conn, - refs_tmp ? refs_tmp : transport->remote_refs, - dest, to_fetch, nr_heads, &data->shallow, - &transport->pack_lockfile); close(data->fd[0]); close(data->fd[1]); if (finish_connect(data->conn)) @@ -339,7 +424,13 @@ static void print_ref_status(char flag, const char *summary, else fprintf(stdout, "%s\n", summary); } else { - fprintf(stderr, " %c %-*s ", flag, summary_width, summary); + const char *red = "", *reset = ""; + if (push_had_errors(to)) { + red = transport_get_color(TRANSPORT_COLOR_REJECTED); + reset = transport_get_color(TRANSPORT_COLOR_RESET); + } + fprintf(stderr, " %s%c %-*s%s ", red, flag, summary_width, + summary, reset); if (from) fprintf(stderr, "%s -> %s", prettify_refname(from->name), prettify_refname(to->name)); else @@ -488,6 +579,9 @@ void transport_print_push_status(const char *dest, struct ref *refs, char *head; int summary_width = transport_summary_width(refs); + if (transport_color_config() < 0) + warning(_("could not parse transport.color.* config")); + head = resolve_refdup("HEAD", RESOLVE_REF_READING, NULL, NULL); if (verbose) { @@ -552,16 +646,13 @@ static int git_transport_push(struct transport *transport, struct ref *remote_re { struct git_transport_data *data = transport->data; struct send_pack_args args; - int ret; + int ret = 0; - if (!data->got_remote_heads) { - struct ref *tmp_refs; - connect_setup(transport, 1); + if (transport_color_config() < 0) + return -1; - get_remote_heads(data->fd[0], NULL, 0, &tmp_refs, REF_NORMAL, - NULL, &data->shallow); - data->got_remote_heads = 1; - } + if (!data->got_remote_heads) + get_refs_via_connect(transport, 1, NULL); memset(&args, 0, sizeof(args)); args.send_mirror = !!(flags & TRANSPORT_PUSH_MIRROR); @@ -583,8 +674,18 @@ static int git_transport_push(struct transport *transport, struct ref *remote_re else args.push_cert = SEND_PACK_PUSH_CERT_NEVER; - ret = send_pack(&args, data->fd, data->conn, remote_refs, - &data->extra_have); + switch (data->version) { + case protocol_v2: + die("support for protocol v2 not implemented yet"); + break; + case protocol_v1: + case protocol_v0: + ret = send_pack(&args, data->fd, data->conn, remote_refs, + &data->extra_have); + break; + case protocol_unknown_version: + BUG("unknown protocol version"); + } close(data->fd[1]); close(data->fd[0]); @@ -998,6 +1099,9 @@ int transport_push(struct transport *transport, *reject_reasons = 0; transport_verify_remote_names(refspec_nr, refspec); + if (transport_color_config() < 0) + return -1; + if (transport->vtable->push_refs) { struct ref *remote_refs; struct ref *local_refs = get_local_heads(); @@ -1007,11 +1111,38 @@ int transport_push(struct transport *transport, int porcelain = flags & TRANSPORT_PUSH_PORCELAIN; int pretend = flags & TRANSPORT_PUSH_DRY_RUN; int push_ret, ret, err; + struct refspec *tmp_rs; + struct argv_array ref_prefixes = ARGV_ARRAY_INIT; + int i; if (check_push_refs(local_refs, refspec_nr, refspec) < 0) return -1; - remote_refs = transport->vtable->get_refs_list(transport, 1); + tmp_rs = parse_push_refspec(refspec_nr, refspec); + for (i = 0; i < refspec_nr; i++) { + const char *prefix = NULL; + + if (tmp_rs[i].dst) + prefix = tmp_rs[i].dst; + else if (tmp_rs[i].src && !tmp_rs[i].exact_sha1) + prefix = tmp_rs[i].src; + + if (prefix) { + const char *glob = strchr(prefix, '*'); + if (glob) + argv_array_pushf(&ref_prefixes, "%.*s", + (int)(glob - prefix), + prefix); + else + expand_ref_prefix(&ref_prefixes, prefix); + } + } + + remote_refs = transport->vtable->get_refs_list(transport, 1, + &ref_prefixes); + + argv_array_clear(&ref_prefixes); + free_refspec(refspec_nr, tmp_rs); if (flags & TRANSPORT_PUSH_ALL) match_flags |= MATCH_REFS_ALL; @@ -1117,10 +1248,13 @@ int transport_push(struct transport *transport, return 1; } -const struct ref *transport_get_remote_refs(struct transport *transport) +const struct ref *transport_get_remote_refs(struct transport *transport, + const struct argv_array *ref_prefixes) { if (!transport->got_remote_refs) { - transport->remote_refs = transport->vtable->get_refs_list(transport, 0); + transport->remote_refs = + transport->vtable->get_refs_list(transport, 0, + ref_prefixes); transport->got_remote_refs = 1; } diff --git a/transport.h b/transport.h index 3c68d73b21..73a7be3c8a 100644 --- a/transport.h +++ b/transport.h @@ -60,11 +60,23 @@ struct transport { unsigned cloning : 1; /* + * Indicates that the transport is connected via a half-duplex + * connection and should operate in stateless-rpc mode. + */ + unsigned stateless_rpc : 1; + + /* * These strings will be passed to the {pre, post}-receive hook, * on the remote side, if both sides support the push options capability. */ const struct string_list *push_options; + /* + * These strings will be passed to the remote side on each command + * request, if both sides support the server-option capability. + */ + const struct string_list *server_options; + char *pack_lockfile; signed verbose : 3; /** @@ -194,7 +206,17 @@ int transport_push(struct transport *connection, int refspec_nr, const char **refspec, int flags, unsigned int * reject_reasons); -const struct ref *transport_get_remote_refs(struct transport *transport); +/* + * Retrieve refs from a remote. + * + * Optionally a list of ref prefixes can be provided which can be sent to the + * server (when communicating using protocol v2) to enable it to limit the ref + * advertisement. Since ref filtering is done on the server's end (and only + * when using protocol v2), this can return refs which don't match the provided + * ref_prefixes. + */ +const struct ref *transport_get_remote_refs(struct transport *transport, + const struct argv_array *ref_prefixes); int transport_fetch_refs(struct transport *transport, struct ref *refs); void transport_unlock_pack(struct transport *transport); @@ -109,7 +109,7 @@ static int read_tree_1(struct tree *tree, struct strbuf *base, oid_to_hex(entry.oid), base->buf, entry.path); - oidcpy(&oid, &commit->tree->object.oid); + oidcpy(&oid, get_commit_tree_oid(commit)); } else continue; @@ -248,7 +248,7 @@ struct tree *parse_tree_indirect(const struct object_id *oid) if (obj->type == OBJ_TREE) return (struct tree *) obj; else if (obj->type == OBJ_COMMIT) - obj = &(((struct commit *) obj)->tree->object); + obj = &(get_commit_tree(((struct commit *)obj))->object); else if (obj->type == OBJ_TAG) obj = ((struct tag *) obj)->tagged; else diff --git a/unpack-trees.c b/unpack-trees.c index 4239dfd285..7051fcf7d8 100644 --- a/unpack-trees.c +++ b/unpack-trees.c @@ -290,7 +290,7 @@ static void load_gitmodules_file(struct index_state *index, if (!state && ce->ce_flags & CE_WT_REMOVE) { repo_read_gitmodules(the_repository); } else if (state && (ce->ce_flags & CE_UPDATE)) { - submodule_free(); + submodule_free(the_repository); checkout_entry(ce, state, NULL); repo_read_gitmodules(the_repository); } @@ -1284,9 +1284,20 @@ int unpack_trees(unsigned len, struct tree_desc *t, struct unpack_trees_options o->result.timestamp.sec = o->src_index->timestamp.sec; o->result.timestamp.nsec = o->src_index->timestamp.nsec; o->result.version = o->src_index->version; - o->result.split_index = o->src_index->split_index; - if (o->result.split_index) + if (!o->src_index->split_index) { + o->result.split_index = NULL; + } else if (o->src_index == o->dst_index) { + /* + * o->dst_index (and thus o->src_index) will be discarded + * and overwritten with o->result at the end of this function, + * so just use src_index's split_index to avoid having to + * create a new one. + */ + o->result.split_index = o->src_index->split_index; o->result.split_index->refcount++; + } else { + o->result.split_index = init_split_index(&o->result); + } hashcpy(o->result.sha1, o->src_index->sha1); o->merge_size = len; mark_all_ce_unused(o->src_index); @@ -1401,7 +1412,6 @@ int unpack_trees(unsigned len, struct tree_desc *t, struct unpack_trees_options } } - o->src_index = NULL; ret = check_updates(o) ? (-2) : 0; if (o->dst_index) { if (!ret) { @@ -1412,12 +1422,13 @@ int unpack_trees(unsigned len, struct tree_desc *t, struct unpack_trees_options WRITE_TREE_SILENT | WRITE_TREE_REPAIR); } - move_index_extensions(&o->result, o->dst_index); + move_index_extensions(&o->result, o->src_index); discard_index(o->dst_index); *o->dst_index = o->result; } else { discard_index(&o->result); } + o->src_index = NULL; done: clear_exclude_list(&el); @@ -1509,8 +1520,8 @@ static int verify_uptodate_1(const struct cache_entry *ce, add_rejected_path(o, error_type, ce->name); } -static int verify_uptodate(const struct cache_entry *ce, - struct unpack_trees_options *o) +int verify_uptodate(const struct cache_entry *ce, + struct unpack_trees_options *o) { if (!o->skip_sparse_checkout && (ce->ce_flags & CE_NEW_SKIP_WORKTREE)) return 0; diff --git a/unpack-trees.h b/unpack-trees.h index 6c48117b84..41178ada94 100644 --- a/unpack-trees.h +++ b/unpack-trees.h @@ -1,6 +1,7 @@ #ifndef UNPACK_TREES_H #define UNPACK_TREES_H +#include "tree-walk.h" #include "string-list.h" #define MAX_UNPACK_TREES 8 @@ -78,6 +79,9 @@ struct unpack_trees_options { extern int unpack_trees(unsigned n, struct tree_desc *t, struct unpack_trees_options *options); +int verify_uptodate(const struct cache_entry *ce, + struct unpack_trees_options *o); + int threeway_merge(const struct cache_entry * const *stages, struct unpack_trees_options *o); int twoway_merge(const struct cache_entry * const *src, diff --git a/upload-pack.c b/upload-pack.c index 6261d4fab3..87b4d32a6e 100644 --- a/upload-pack.c +++ b/upload-pack.c @@ -6,7 +6,6 @@ #include "tag.h" #include "object.h" #include "commit.h" -#include "exec-cmd.h" #include "diff.h" #include "revision.h" #include "list-objects.h" @@ -17,16 +16,12 @@ #include "sigchain.h" #include "version.h" #include "string-list.h" -#include "parse-options.h" #include "argv-array.h" #include "prio-queue.h" #include "protocol.h" #include "quote.h" - -static const char * const upload_pack_usage[] = { - N_("git upload-pack [<options>] <dir>"), - NULL -}; +#include "upload-pack.h" +#include "serve.h" /* Remember to update object flag allocation in object.h */ #define THEY_HAVE (1u << 11) @@ -64,7 +59,6 @@ static int keepalive = 5; * otherwise maximum packet size (up to 65520 bytes). */ static int use_sideband; -static int advertise_refs; static int stateless_rpc; static const char *pack_objects_hook; @@ -734,7 +728,6 @@ static void deepen(int depth, int deepen_relative, } send_unshallow(shallows); - packet_flush(1); } static void deepen_by_rev_list(int ac, const char **av, @@ -746,7 +739,122 @@ static void deepen_by_rev_list(int ac, const char **av, send_shallow(result); free_commit_list(result); send_unshallow(shallows); - packet_flush(1); +} + +/* Returns 1 if a shallow list is sent or 0 otherwise */ +static int send_shallow_list(int depth, int deepen_rev_list, + timestamp_t deepen_since, + struct string_list *deepen_not, + struct object_array *shallows) +{ + int ret = 0; + + if (depth > 0 && deepen_rev_list) + die("git upload-pack: deepen and deepen-since (or deepen-not) cannot be used together"); + if (depth > 0) { + deepen(depth, deepen_relative, shallows); + ret = 1; + } else if (deepen_rev_list) { + struct argv_array av = ARGV_ARRAY_INIT; + int i; + + argv_array_push(&av, "rev-list"); + if (deepen_since) + argv_array_pushf(&av, "--max-age=%"PRItime, deepen_since); + if (deepen_not->nr) { + argv_array_push(&av, "--not"); + for (i = 0; i < deepen_not->nr; i++) { + struct string_list_item *s = deepen_not->items + i; + argv_array_push(&av, s->string); + } + argv_array_push(&av, "--not"); + } + for (i = 0; i < want_obj.nr; i++) { + struct object *o = want_obj.objects[i].item; + argv_array_push(&av, oid_to_hex(&o->oid)); + } + deepen_by_rev_list(av.argc, av.argv, shallows); + argv_array_clear(&av); + ret = 1; + } else { + if (shallows->nr > 0) { + int i; + for (i = 0; i < shallows->nr; i++) + register_shallow(&shallows->objects[i].item->oid); + } + } + + shallow_nr += shallows->nr; + return ret; +} + +static int process_shallow(const char *line, struct object_array *shallows) +{ + const char *arg; + if (skip_prefix(line, "shallow ", &arg)) { + struct object_id oid; + struct object *object; + if (get_oid_hex(arg, &oid)) + die("invalid shallow line: %s", line); + object = parse_object(&oid); + if (!object) + return 1; + if (object->type != OBJ_COMMIT) + die("invalid shallow object %s", oid_to_hex(&oid)); + if (!(object->flags & CLIENT_SHALLOW)) { + object->flags |= CLIENT_SHALLOW; + add_object_array(object, NULL, shallows); + } + return 1; + } + + return 0; +} + +static int process_deepen(const char *line, int *depth) +{ + const char *arg; + if (skip_prefix(line, "deepen ", &arg)) { + char *end = NULL; + *depth = (int)strtol(arg, &end, 0); + if (!end || *end || *depth <= 0) + die("Invalid deepen: %s", line); + return 1; + } + + return 0; +} + +static int process_deepen_since(const char *line, timestamp_t *deepen_since, int *deepen_rev_list) +{ + const char *arg; + if (skip_prefix(line, "deepen-since ", &arg)) { + char *end = NULL; + *deepen_since = parse_timestamp(arg, &end, 0); + if (!end || *end || !deepen_since || + /* revisions.c's max_age -1 is special */ + *deepen_since == -1) + die("Invalid deepen-since: %s", line); + *deepen_rev_list = 1; + return 1; + } + return 0; +} + +static int process_deepen_not(const char *line, struct string_list *deepen_not, int *deepen_rev_list) +{ + const char *arg; + if (skip_prefix(line, "deepen-not ", &arg)) { + char *ref = NULL; + struct object_id oid; + if (expand_ref(arg, strlen(arg), &oid, &ref) != 1) + die("git upload-pack: ambiguous deepen-not: %s", line); + string_list_append(deepen_not, ref); + free(ref); + *deepen_rev_list = 1; + return 1; + } + return 0; } static void receive_needs(void) @@ -770,55 +878,22 @@ static void receive_needs(void) if (!line) break; - if (skip_prefix(line, "shallow ", &arg)) { - struct object_id oid; - struct object *object; - if (get_oid_hex(arg, &oid)) - die("invalid shallow line: %s", line); - object = parse_object(&oid); - if (!object) - continue; - if (object->type != OBJ_COMMIT) - die("invalid shallow object %s", oid_to_hex(&oid)); - if (!(object->flags & CLIENT_SHALLOW)) { - object->flags |= CLIENT_SHALLOW; - add_object_array(object, NULL, &shallows); - } + if (process_shallow(line, &shallows)) continue; - } - if (skip_prefix(line, "deepen ", &arg)) { - char *end = NULL; - depth = strtol(arg, &end, 0); - if (!end || *end || depth <= 0) - die("Invalid deepen: %s", line); + if (process_deepen(line, &depth)) continue; - } - if (skip_prefix(line, "deepen-since ", &arg)) { - char *end = NULL; - deepen_since = parse_timestamp(arg, &end, 0); - if (!end || *end || !deepen_since || - /* revisions.c's max_age -1 is special */ - deepen_since == -1) - die("Invalid deepen-since: %s", line); - deepen_rev_list = 1; + if (process_deepen_since(line, &deepen_since, &deepen_rev_list)) continue; - } - if (skip_prefix(line, "deepen-not ", &arg)) { - char *ref = NULL; - struct object_id oid; - if (expand_ref(arg, strlen(arg), &oid, &ref) != 1) - die("git upload-pack: ambiguous deepen-not: %s", line); - string_list_append(&deepen_not, ref); - free(ref); - deepen_rev_list = 1; + if (process_deepen_not(line, &deepen_not, &deepen_rev_list)) continue; - } + if (skip_prefix(line, "filter ", &arg)) { if (!filter_capability_requested) die("git upload-pack: filtering capability not negotiated"); parse_list_objects_filter(&filter_options, arg); continue; } + if (!skip_prefix(line, "want ", &arg) || get_oid_hex(arg, &oid_buf)) die("git upload-pack: protocol error, " @@ -881,40 +956,10 @@ static void receive_needs(void) if (depth == 0 && !deepen_rev_list && shallows.nr == 0) return; - if (depth > 0 && deepen_rev_list) - die("git upload-pack: deepen and deepen-since (or deepen-not) cannot be used together"); - if (depth > 0) - deepen(depth, deepen_relative, &shallows); - else if (deepen_rev_list) { - struct argv_array av = ARGV_ARRAY_INIT; - int i; - argv_array_push(&av, "rev-list"); - if (deepen_since) - argv_array_pushf(&av, "--max-age=%"PRItime, deepen_since); - if (deepen_not.nr) { - argv_array_push(&av, "--not"); - for (i = 0; i < deepen_not.nr; i++) { - struct string_list_item *s = deepen_not.items + i; - argv_array_push(&av, s->string); - } - argv_array_push(&av, "--not"); - } - for (i = 0; i < want_obj.nr; i++) { - struct object *o = want_obj.objects[i].item; - argv_array_push(&av, oid_to_hex(&o->oid)); - } - deepen_by_rev_list(av.argc, av.argv, &shallows); - argv_array_clear(&av); - } - else - if (shallows.nr > 0) { - int i; - for (i = 0; i < shallows.nr; i++) - register_shallow(&shallows.objects[i].item->oid); - } - - shallow_nr += shallows.nr; + if (send_shallow_list(depth, deepen_rev_list, deepen_since, + &deepen_not, &shallows)) + packet_flush(1); object_array_clear(&shallows); } @@ -1004,33 +1049,6 @@ static int find_symref(const char *refname, const struct object_id *oid, return 0; } -static void upload_pack(void) -{ - struct string_list symref = STRING_LIST_INIT_DUP; - - head_ref_namespaced(find_symref, &symref); - - if (advertise_refs || !stateless_rpc) { - reset_timeout(); - head_ref_namespaced(send_ref, &symref); - for_each_namespaced_ref(send_ref, &symref); - advertise_shallow_grafts(1); - packet_flush(1); - } else { - head_ref_namespaced(check_ref, NULL); - for_each_namespaced_ref(check_ref, NULL); - } - string_list_clear(&symref, 1); - if (advertise_refs) - return; - - receive_needs(); - if (want_obj.nr) { - get_common_commits(); - create_pack_file(); - } -} - static int upload_pack_config(const char *var, const char *value, void *unused) { if (!strcmp("uploadpack.allowtipsha1inwant", var)) { @@ -1061,58 +1079,356 @@ static int upload_pack_config(const char *var, const char *value, void *unused) return parse_hide_refs_config(var, value, "uploadpack"); } -int cmd_main(int argc, const char **argv) +void upload_pack(struct upload_pack_options *options) { - const char *dir; - int strict = 0; - struct option options[] = { - OPT_BOOL(0, "stateless-rpc", &stateless_rpc, - N_("quit after a single request/response exchange")), - OPT_BOOL(0, "advertise-refs", &advertise_refs, - N_("exit immediately after initial ref advertisement")), - OPT_BOOL(0, "strict", &strict, - N_("do not try <directory>/.git/ if <directory> is no Git directory")), - OPT_INTEGER(0, "timeout", &timeout, - N_("interrupt transfer after <n> seconds of inactivity")), - OPT_END() - }; + struct string_list symref = STRING_LIST_INIT_DUP; - packet_trace_identity("upload-pack"); - check_replace_refs = 0; + stateless_rpc = options->stateless_rpc; + timeout = options->timeout; + daemon_mode = options->daemon_mode; - argc = parse_options(argc, argv, NULL, options, upload_pack_usage, 0); + git_config(upload_pack_config, NULL); - if (argc != 1) - usage_with_options(upload_pack_usage, options); + head_ref_namespaced(find_symref, &symref); - if (timeout) - daemon_mode = 1; + if (options->advertise_refs || !stateless_rpc) { + reset_timeout(); + head_ref_namespaced(send_ref, &symref); + for_each_namespaced_ref(send_ref, &symref); + advertise_shallow_grafts(1); + packet_flush(1); + } else { + head_ref_namespaced(check_ref, NULL); + for_each_namespaced_ref(check_ref, NULL); + } + string_list_clear(&symref, 1); + if (options->advertise_refs) + return; - setup_path(); + receive_needs(); + if (want_obj.nr) { + get_common_commits(); + create_pack_file(); + } +} - dir = argv[0]; +struct upload_pack_data { + struct object_array wants; + struct oid_array haves; - if (!enter_repo(dir, strict)) - die("'%s' does not appear to be a git repository", dir); + struct object_array shallows; + struct string_list deepen_not; + int depth; + timestamp_t deepen_since; + int deepen_rev_list; + int deepen_relative; - git_config(upload_pack_config, NULL); + unsigned stateless_rpc : 1; - switch (determine_protocol_version_server()) { - case protocol_v1: - /* - * v1 is just the original protocol with a version string, - * so just fall through after writing the version string. - */ - if (advertise_refs || !stateless_rpc) - packet_write_fmt(1, "version 1\n"); - - /* fallthrough */ - case protocol_v0: - upload_pack(); - break; - case protocol_unknown_version: - BUG("unknown protocol version"); + unsigned use_thin_pack : 1; + unsigned use_ofs_delta : 1; + unsigned no_progress : 1; + unsigned use_include_tag : 1; + unsigned done : 1; +}; + +static void upload_pack_data_init(struct upload_pack_data *data) +{ + struct object_array wants = OBJECT_ARRAY_INIT; + struct oid_array haves = OID_ARRAY_INIT; + struct object_array shallows = OBJECT_ARRAY_INIT; + struct string_list deepen_not = STRING_LIST_INIT_DUP; + + memset(data, 0, sizeof(*data)); + data->wants = wants; + data->haves = haves; + data->shallows = shallows; + data->deepen_not = deepen_not; +} + +static void upload_pack_data_clear(struct upload_pack_data *data) +{ + object_array_clear(&data->wants); + oid_array_clear(&data->haves); + object_array_clear(&data->shallows); + string_list_clear(&data->deepen_not, 0); +} + +static int parse_want(const char *line) +{ + const char *arg; + if (skip_prefix(line, "want ", &arg)) { + struct object_id oid; + struct object *o; + + if (get_oid_hex(arg, &oid)) + die("git upload-pack: protocol error, " + "expected to get oid, not '%s'", line); + + o = parse_object(&oid); + if (!o) { + packet_write_fmt(1, + "ERR upload-pack: not our ref %s", + oid_to_hex(&oid)); + die("git upload-pack: not our ref %s", + oid_to_hex(&oid)); + } + + if (!(o->flags & WANTED)) { + o->flags |= WANTED; + add_object_array(o, NULL, &want_obj); + } + + return 1; + } + + return 0; +} + +static int parse_have(const char *line, struct oid_array *haves) +{ + const char *arg; + if (skip_prefix(line, "have ", &arg)) { + struct object_id oid; + + if (get_oid_hex(arg, &oid)) + die("git upload-pack: expected SHA1 object, got '%s'", arg); + oid_array_append(haves, &oid); + return 1; } return 0; } + +static void process_args(struct packet_reader *request, + struct upload_pack_data *data) +{ + while (packet_reader_read(request) != PACKET_READ_FLUSH) { + const char *arg = request->line; + + /* process want */ + if (parse_want(arg)) + continue; + /* process have line */ + if (parse_have(arg, &data->haves)) + continue; + + /* process args like thin-pack */ + if (!strcmp(arg, "thin-pack")) { + use_thin_pack = 1; + continue; + } + if (!strcmp(arg, "ofs-delta")) { + use_ofs_delta = 1; + continue; + } + if (!strcmp(arg, "no-progress")) { + no_progress = 1; + continue; + } + if (!strcmp(arg, "include-tag")) { + use_include_tag = 1; + continue; + } + if (!strcmp(arg, "done")) { + data->done = 1; + continue; + } + + /* Shallow related arguments */ + if (process_shallow(arg, &data->shallows)) + continue; + if (process_deepen(arg, &data->depth)) + continue; + if (process_deepen_since(arg, &data->deepen_since, + &data->deepen_rev_list)) + continue; + if (process_deepen_not(arg, &data->deepen_not, + &data->deepen_rev_list)) + continue; + if (!strcmp(arg, "deepen-relative")) { + data->deepen_relative = 1; + continue; + } + + /* ignore unknown lines maybe? */ + die("unexpect line: '%s'", arg); + } +} + +static int process_haves(struct oid_array *haves, struct oid_array *common) +{ + int i; + + /* Process haves */ + for (i = 0; i < haves->nr; i++) { + const struct object_id *oid = &haves->oid[i]; + struct object *o; + int we_knew_they_have = 0; + + if (!has_object_file(oid)) + continue; + + oid_array_append(common, oid); + + o = parse_object(oid); + if (!o) + die("oops (%s)", oid_to_hex(oid)); + if (o->type == OBJ_COMMIT) { + struct commit_list *parents; + struct commit *commit = (struct commit *)o; + if (o->flags & THEY_HAVE) + we_knew_they_have = 1; + else + o->flags |= THEY_HAVE; + if (!oldest_have || (commit->date < oldest_have)) + oldest_have = commit->date; + for (parents = commit->parents; + parents; + parents = parents->next) + parents->item->object.flags |= THEY_HAVE; + } + if (!we_knew_they_have) + add_object_array(o, NULL, &have_obj); + } + + return 0; +} + +static int send_acks(struct oid_array *acks, struct strbuf *response) +{ + int i; + + packet_buf_write(response, "acknowledgments\n"); + + /* Send Acks */ + if (!acks->nr) + packet_buf_write(response, "NAK\n"); + + for (i = 0; i < acks->nr; i++) { + packet_buf_write(response, "ACK %s\n", + oid_to_hex(&acks->oid[i])); + } + + if (ok_to_give_up()) { + /* Send Ready */ + packet_buf_write(response, "ready\n"); + return 1; + } + + return 0; +} + +static int process_haves_and_send_acks(struct upload_pack_data *data) +{ + struct oid_array common = OID_ARRAY_INIT; + struct strbuf response = STRBUF_INIT; + int ret = 0; + + process_haves(&data->haves, &common); + if (data->done) { + ret = 1; + } else if (send_acks(&common, &response)) { + packet_buf_delim(&response); + ret = 1; + } else { + /* Add Flush */ + packet_buf_flush(&response); + ret = 0; + } + + /* Send response */ + write_or_die(1, response.buf, response.len); + strbuf_release(&response); + + oid_array_clear(&data->haves); + oid_array_clear(&common); + return ret; +} + +static void send_shallow_info(struct upload_pack_data *data) +{ + /* No shallow info needs to be sent */ + if (!data->depth && !data->deepen_rev_list && !data->shallows.nr && + !is_repository_shallow()) + return; + + packet_write_fmt(1, "shallow-info\n"); + + if (!send_shallow_list(data->depth, data->deepen_rev_list, + data->deepen_since, &data->deepen_not, + &data->shallows) && is_repository_shallow()) + deepen(INFINITE_DEPTH, data->deepen_relative, &data->shallows); + + packet_delim(1); +} + +enum fetch_state { + FETCH_PROCESS_ARGS = 0, + FETCH_SEND_ACKS, + FETCH_SEND_PACK, + FETCH_DONE, +}; + +int upload_pack_v2(struct repository *r, struct argv_array *keys, + struct packet_reader *request) +{ + enum fetch_state state = FETCH_PROCESS_ARGS; + struct upload_pack_data data; + + upload_pack_data_init(&data); + use_sideband = LARGE_PACKET_MAX; + + while (state != FETCH_DONE) { + switch (state) { + case FETCH_PROCESS_ARGS: + process_args(request, &data); + + if (!want_obj.nr) { + /* + * Request didn't contain any 'want' lines, + * guess they didn't want anything. + */ + state = FETCH_DONE; + } else if (data.haves.nr) { + /* + * Request had 'have' lines, so lets ACK them. + */ + state = FETCH_SEND_ACKS; + } else { + /* + * Request had 'want's but no 'have's so we can + * immedietly go to construct and send a pack. + */ + state = FETCH_SEND_PACK; + } + break; + case FETCH_SEND_ACKS: + if (process_haves_and_send_acks(&data)) + state = FETCH_SEND_PACK; + else + state = FETCH_DONE; + break; + case FETCH_SEND_PACK: + send_shallow_info(&data); + + packet_write_fmt(1, "packfile\n"); + create_pack_file(); + state = FETCH_DONE; + break; + case FETCH_DONE: + continue; + } + } + + upload_pack_data_clear(&data); + return 0; +} + +int upload_pack_advertise(struct repository *r, + struct strbuf *value) +{ + if (value) + strbuf_addstr(value, "shallow"); + return 1; +} diff --git a/upload-pack.h b/upload-pack.h new file mode 100644 index 0000000000..cab2178796 --- /dev/null +++ b/upload-pack.h @@ -0,0 +1,23 @@ +#ifndef UPLOAD_PACK_H +#define UPLOAD_PACK_H + +struct upload_pack_options { + int stateless_rpc; + int advertise_refs; + unsigned int timeout; + int daemon_mode; +}; + +void upload_pack(struct upload_pack_options *options); + +struct repository; +struct argv_array; +struct packet_reader; +extern int upload_pack_v2(struct repository *r, struct argv_array *keys, + struct packet_reader *request); + +struct strbuf; +extern int upload_pack_advertise(struct repository *r, + struct strbuf *value); + +#endif /* UPLOAD_PACK_H */ @@ -401,18 +401,40 @@ out: strbuf_release(&sb_dst); } +/* + * Returns true (1) if the src encoding name matches the dst encoding + * name directly or one of its alternative names. E.g. UTF-16BE is the + * same as UTF16BE. + */ +static int same_utf_encoding(const char *src, const char *dst) +{ + if (istarts_with(src, "utf") && istarts_with(dst, "utf")) { + /* src[3] or dst[3] might be '\0' */ + int i = (src[3] == '-' ? 4 : 3); + int j = (dst[3] == '-' ? 4 : 3); + return !strcasecmp(src+i, dst+j); + } + return 0; +} + int is_encoding_utf8(const char *name) { if (!name) return 1; - if (!strcasecmp(name, "utf-8") || !strcasecmp(name, "utf8")) + if (same_utf_encoding("utf-8", name)) return 1; return 0; } int same_encoding(const char *src, const char *dst) { - if (is_encoding_utf8(src) && is_encoding_utf8(dst)) + static const char utf8[] = "UTF-8"; + + if (!src) + src = utf8; + if (!dst) + dst = utf8; + if (same_utf_encoding(src, dst)) return 1; return !strcasecmp(src, dst); } @@ -538,6 +560,45 @@ char *reencode_string_len(const char *in, int insz, } #endif +static int has_bom_prefix(const char *data, size_t len, + const char *bom, size_t bom_len) +{ + return data && bom && (len >= bom_len) && !memcmp(data, bom, bom_len); +} + +static const char utf16_be_bom[] = {0xFE, 0xFF}; +static const char utf16_le_bom[] = {0xFF, 0xFE}; +static const char utf32_be_bom[] = {0x00, 0x00, 0xFE, 0xFF}; +static const char utf32_le_bom[] = {0xFF, 0xFE, 0x00, 0x00}; + +int has_prohibited_utf_bom(const char *enc, const char *data, size_t len) +{ + return ( + (same_utf_encoding("UTF-16BE", enc) || + same_utf_encoding("UTF-16LE", enc)) && + (has_bom_prefix(data, len, utf16_be_bom, sizeof(utf16_be_bom)) || + has_bom_prefix(data, len, utf16_le_bom, sizeof(utf16_le_bom))) + ) || ( + (same_utf_encoding("UTF-32BE", enc) || + same_utf_encoding("UTF-32LE", enc)) && + (has_bom_prefix(data, len, utf32_be_bom, sizeof(utf32_be_bom)) || + has_bom_prefix(data, len, utf32_le_bom, sizeof(utf32_le_bom))) + ); +} + +int is_missing_required_utf_bom(const char *enc, const char *data, size_t len) +{ + return ( + (same_utf_encoding(enc, "UTF-16")) && + !(has_bom_prefix(data, len, utf16_be_bom, sizeof(utf16_be_bom)) || + has_bom_prefix(data, len, utf16_le_bom, sizeof(utf16_le_bom))) + ) || ( + (same_utf_encoding(enc, "UTF-32")) && + !(has_bom_prefix(data, len, utf32_be_bom, sizeof(utf32_be_bom)) || + has_bom_prefix(data, len, utf32_le_bom, sizeof(utf32_le_bom))) + ); +} + /* * Returns first character length in bytes for multi-byte `text` according to * `encoding`. @@ -620,28 +681,33 @@ static ucs_char_t next_hfs_char(const char **in) } } -int is_hfs_dotgit(const char *path) +static int is_hfs_dot_generic(const char *path, + const char *needle, size_t needle_len) { ucs_char_t c; c = next_hfs_char(&path); if (c != '.') return 0; - c = next_hfs_char(&path); /* * there's a great deal of other case-folding that occurs - * in HFS+, but this is enough to catch anything that will - * convert to ".git" + * in HFS+, but this is enough to catch our fairly vanilla + * hard-coded needles. */ - if (c != 'g' && c != 'G') - return 0; - c = next_hfs_char(&path); - if (c != 'i' && c != 'I') - return 0; - c = next_hfs_char(&path); - if (c != 't' && c != 'T') - return 0; + for (; needle_len > 0; needle++, needle_len--) { + c = next_hfs_char(&path); + + /* + * We know our needles contain only ASCII, so we clamp here to + * make the results of tolower() sane. + */ + if (c > 127) + return 0; + if (tolower(c) != *needle) + return 0; + } + c = next_hfs_char(&path); if (c && !is_dir_sep(c)) return 0; @@ -649,6 +715,35 @@ int is_hfs_dotgit(const char *path) return 1; } +/* + * Inline wrapper to make sure the compiler resolves strlen() on literals at + * compile time. + */ +static inline int is_hfs_dot_str(const char *path, const char *needle) +{ + return is_hfs_dot_generic(path, needle, strlen(needle)); +} + +int is_hfs_dotgit(const char *path) +{ + return is_hfs_dot_str(path, "git"); +} + +int is_hfs_dotgitmodules(const char *path) +{ + return is_hfs_dot_str(path, "gitmodules"); +} + +int is_hfs_dotgitignore(const char *path) +{ + return is_hfs_dot_str(path, "gitignore"); +} + +int is_hfs_dotgitattributes(const char *path) +{ + return is_hfs_dot_str(path, "gitattributes"); +} + const char utf8_bom[] = "\357\273\277"; int skip_utf8_bom(char **text, size_t len) @@ -52,8 +52,13 @@ int mbs_chrlen(const char **text, size_t *remainder_p, const char *encoding); * The path should be NUL-terminated, but we will match variants of both ".git\0" * and ".git/..." (but _not_ ".../.git"). This makes it suitable for both fsck * and verify_path(). + * + * Likewise, the is_hfs_dotgitfoo() variants look for ".gitfoo". */ int is_hfs_dotgit(const char *path); +int is_hfs_dotgitmodules(const char *path); +int is_hfs_dotgitignore(const char *path); +int is_hfs_dotgitattributes(const char *path); typedef enum { ALIGN_LEFT, @@ -70,4 +75,32 @@ typedef enum { void strbuf_utf8_align(struct strbuf *buf, align_type position, unsigned int width, const char *s); +/* + * If a data stream is declared as UTF-16BE or UTF-16LE, then a UTF-16 + * BOM must not be used [1]. The same applies for the UTF-32 equivalents. + * The function returns true if this rule is violated. + * + * [1] http://unicode.org/faq/utf_bom.html#bom10 + */ +int has_prohibited_utf_bom(const char *enc, const char *data, size_t len); + +/* + * If the endianness is not defined in the encoding name, then we + * require a BOM. The function returns true if a required BOM is missing. + * + * The Unicode standard instructs to assume big-endian if there in no + * BOM for UTF-16/32 [1][2]. However, the W3C/WHATWG encoding standard + * used in HTML5 recommends to assume little-endian to "deal with + * deployed content" [3]. + * + * Therefore, strictly requiring a BOM seems to be the safest option for + * content in Git. + * + * [1] http://unicode.org/faq/utf_bom.html#gen6 + * [2] http://www.unicode.org/versions/Unicode10.0.0/ch03.pdf + * Section 3.10, D98, page 132 + * [3] https://encoding.spec.whatwg.org/#utf-16le + */ +int is_missing_required_utf_bom(const char *enc, const char *data, size_t len); + #endif @@ -72,6 +72,8 @@ static struct commit_list *complete = NULL; static int process_commit(struct walker *walker, struct commit *commit) { + struct commit_list *parents; + if (parse_commit(commit)) return -1; @@ -86,19 +88,14 @@ static int process_commit(struct walker *walker, struct commit *commit) walker_say(walker, "walk %s\n", oid_to_hex(&commit->object.oid)); - if (walker->get_tree) { - if (process(walker, &commit->tree->object)) + if (process(walker, &get_commit_tree(commit)->object)) + return -1; + + for (parents = commit->parents; parents; parents = parents->next) { + if (process(walker, &parents->item->object)) return -1; - if (!walker->get_all) - walker->get_tree = 0; - } - if (walker->get_history) { - struct commit_list *parents = commit->parents; - for (; parents; parents = parents->next) { - if (process(walker, &parents->item->object)) - return -1; - } } + return 0; } @@ -9,9 +9,6 @@ struct walker { void (*prefetch)(struct walker *, unsigned char *sha1); int (*fetch)(struct walker *, unsigned char *sha1); void (*cleanup)(struct walker *); - int get_tree; - int get_history; - int get_all; int get_verbosely; int get_recover; diff --git a/wrap-for-bin.sh b/wrap-for-bin.sh index 5842408817..95851b85b6 100644 --- a/wrap-for-bin.sh +++ b/wrap-for-bin.sh @@ -20,10 +20,17 @@ PATH='@@BUILD_DIR@@/bin-wrappers:'"$PATH" export GIT_EXEC_PATH GITPERLLIB PATH GIT_TEXTDOMAINDIR -if test -n "$GIT_TEST_GDB" -then - unset GIT_TEST_GDB - exec gdb --args "${GIT_EXEC_PATH}/@@PROG@@" "$@" -else +case "$GIT_DEBUGGER" in +'') exec "${GIT_EXEC_PATH}/@@PROG@@" "$@" -fi + ;; +1) + unset GIT_DEBUGGER + exec gdb --args "${GIT_EXEC_PATH}/@@PROG@@" "$@" + ;; +*) + GIT_DEBUGGER_ARGS="$GIT_DEBUGGER" + unset GIT_DEBUGGER + exec ${GIT_DEBUGGER_ARGS} "${GIT_EXEC_PATH}/@@PROG@@" "$@" + ;; +esac diff --git a/wt-status.c b/wt-status.c index 26d037610e..0cf1bed995 100644 --- a/wt-status.c +++ b/wt-status.c @@ -625,9 +625,6 @@ static void wt_status_collect_changes_index(struct wt_status *s) rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK; rev.diffopt.format_callback = wt_status_collect_updated_cb; rev.diffopt.format_callback_data = s; - rev.diffopt.detect_rename = DIFF_DETECT_RENAME; - rev.diffopt.rename_limit = 200; - rev.diffopt.break_opt = 0; copy_pathspec(&rev.prune_data, &s->pathspec); run_diff_index(&rev, 1); } @@ -985,7 +982,6 @@ static void wt_longstatus_print_verbose(struct wt_status *s) setup_revisions(0, NULL, &rev, &opt); rev.diffopt.output_format |= DIFF_FORMAT_PATCH; - rev.diffopt.detect_rename = DIFF_DETECT_RENAME; rev.diffopt.file = s->fp; rev.diffopt.close_file = 0; /* |