diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/CodingGuidelines | 9 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.0.1.txt | 115 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.0.2.txt | 32 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.1.0.txt | 101 | ||||
| -rw-r--r-- | Documentation/config.txt | 17 | ||||
| -rw-r--r-- | Documentation/fetch-options.txt | 8 | ||||
| -rw-r--r-- | Documentation/git-fetch.txt | 90 | ||||
| -rw-r--r-- | Documentation/git-replace.txt | 8 | ||||
| -rw-r--r-- | Documentation/git-rev-parse.txt | 4 | ||||
| -rw-r--r-- | Documentation/git-send-email.txt | 12 | ||||
| -rw-r--r-- | Documentation/git-submodule.txt | 2 | ||||
| -rw-r--r-- | Documentation/git-update-index.txt | 11 | ||||
| -rw-r--r-- | Documentation/git-verify-commit.txt | 28 | ||||
| -rw-r--r-- | Documentation/git.txt | 4 | ||||
| -rw-r--r-- | Documentation/gitrepository-layout.txt | 4 | ||||
| -rw-r--r-- | Documentation/pull-fetch-param.txt | 81 | ||||
| -rw-r--r-- | Documentation/technical/api-hashmap.txt | 54 | ||||
| -rw-r--r-- | Documentation/technical/api-strbuf.txt | 10 | ||||
| -rw-r--r-- | Documentation/technical/http-protocol.txt | 2 | ||||
| -rw-r--r-- | Documentation/technical/index-format.txt | 35 |
20 files changed, 548 insertions, 79 deletions
diff --git a/Documentation/CodingGuidelines b/Documentation/CodingGuidelines index 4d90c77c7b..894546dd75 100644 --- a/Documentation/CodingGuidelines +++ b/Documentation/CodingGuidelines @@ -404,6 +404,15 @@ For Python scripts: documentation for version 2.6 does not mention this prefix, it has been supported since version 2.6.0. +Error Messages + + - Do not end error messages with a full stop. + + - Do not capitalize ("unable to open %s", not "Unable to open %s") + + - Say what the error is first ("cannot open %s", not "%s: cannot open") + + Writing Documentation: Most (if not all) of the documentation pages are written in the diff --git a/Documentation/RelNotes/2.0.1.txt b/Documentation/RelNotes/2.0.1.txt new file mode 100644 index 0000000000..ce5579db3e --- /dev/null +++ b/Documentation/RelNotes/2.0.1.txt @@ -0,0 +1,115 @@ +Git v2.0.1 Release Notes +======================== + + * We used to unconditionally disable the pager in the pager process + we spawn to feed out output, but that prevented people who want to + run "less" within "less" from doing so. + + * Tools that read diagnostic output in our standard error stream do + not want to see terminal control sequence (e.g. erase-to-eol). + Detect them by checking if the standard error stream is connected + to a tty. + * Reworded the error message given upon a failure to open an existing + loose object file due to e.g. permission issues; it was reported as + the object being corrupt, but that is not quite true. + + * "git log -2master" is a common typo that shows two commits starting + from whichever random branch that is not 'master' that happens to + be checked out currently. + + * The "%<(10,trunc)%s" pretty format specifier in the log family of + commands is used to truncate the string to a given length (e.g. 10 + in the example) with padding to column-align the output, but did + not take into account that number of bytes and number of display + columns are different. + + * The "mailmap.file" configuration option did not support the tilde + expansion (i.e. ~user/path and ~/path). + + * The completion scripts (in contrib/) did not know about quite a few + options that are common between "git merge" and "git pull", and a + couple of options unique to "git merge". + + * "--ignore-space-change" option of "git apply" ignored the spaces + at the beginning of line too aggressively, which is inconsistent + with the option of the same name "diff" and "git diff" have. + + * "git blame" miscounted number of columns needed to show localized + timestamps, resulting in jaggy left-side-edge of the source code + lines in its output. + + * "git blame" assigned the blame to the copy in the working-tree if + the repository is set to core.autocrlf=input and the file used CRLF + line endings. + + * "git commit --allow-empty-message -C $commit" did not work when the + commit did not have any log message. + + * "git diff --find-copies-harder" sometimes pretended as if the mode + bits have changed for paths that are marked with assume-unchanged + bit. + + * "git format-patch" did not enforce the rule that the "--follow" + option from the log/diff family of commands must be used with + exactly one pathspec. + + * "git gc --auto" was recently changed to run in the background to + give control back early to the end-user sitting in front of the + terminal, but it forgot that housekeeping involving reflogs should + be done without other processes competing for accesses to the refs. + + * "git grep -O" to show the lines that hit in the pager did not work + well with case insensitive search. We now spawn "less" with its + "-I" option when it is used as the pager (which is the default). + + * We used to disable threaded "git index-pack" on platforms without + thread-safe pread(); use a different workaround for such + platforms to allow threaded "git index-pack". + + * The error reporting from "git index-pack" has been improved to + distinguish missing objects from type errors. + + * "git mailinfo" used to read beyond the end of header string while + parsing an incoming e-mail message to extract the patch. + + * On a case insensitive filesystem, merge-recursive incorrectly + deleted the file that is to be renamed to a name that is the same + except for case differences. + + * "git pack-objects" unnecessarily copied the previous contents when + extending the hashtable, even though it will populate the table + from scratch anyway. + + * "git rerere forget" did not work well when merge.conflictstyle + was set to a non-default value. + + * "git remote rm" and "git remote prune" can involve removing many + refs at once, which is not a very efficient thing to do when very + many refs exist in the packed-refs file. + + * "git log --exclude=<glob> --all | git shortlog" worked as expected, + but "git shortlog --exclude=<glob> --all", which is supposed to be + identical to the above pipeline, was not accepted at the command + line argument parser level. + + * The autostash mode of "git rebase -i" did not restore the dirty + working tree state if the user aborted the interactive rebase by + emptying the insn sheet. + + * "git show -s" (i.e. show log message only) used to incorrectly emit + an extra blank line after a merge commit. + + * "git status", even though it is a read-only operation, tries to + update the index with refreshed lstat(2) info to optimize future + accesses to the working tree opportunistically, but this could + race with a "read-write" operation that modify the index while it + is running. Detect such a race and avoid overwriting the index. + + * "git status" (and "git commit") behaved as if changes in a modified + submodule are not there if submodule.*.ignore configuration is set, + which was misleading. The configuration is only to unclutter diff + output during the course of development, and should not to hide + changes in the "status" output to cause the users forget to commit + them. + + * The mode to run tests with HTTP server tests disabled was broken. diff --git a/Documentation/RelNotes/2.0.2.txt b/Documentation/RelNotes/2.0.2.txt new file mode 100644 index 0000000000..8e8321b2ef --- /dev/null +++ b/Documentation/RelNotes/2.0.2.txt @@ -0,0 +1,32 @@ +Git v2.0.2 Release Notes +======================== + + * Documentation for "git submodule sync" forgot to say that the subcommand + can take the "--recursive" option. + + * Mishandling of patterns in .gitignore that has trailing SPs quoted + with backslashes (e.g. ones that end with "\ ") have been + corrected. + + * Recent updates to "git repack" started to duplicate objects that + are in packfiles marked with .keep flag into the new packfile by + mistake. + + * "git clone -b brefs/tags/bar" would have mistakenly thought we were + following a single tag, even though it was a name of the branch, + because it incorrectly used strstr(). + + * "%G" (nothing after G) is an invalid pretty format specifier, but + the parser did not notice it as garbage. + + * Code to avoid adding the same alternate object store twice was + subtly broken for a long time, but nobody seems to have noticed. + + * A handful of code paths had to read the commit object more than + once when showing header fields that are usually not parsed. The + internal data structure to keep track of the contents of the commit + object has been updated to reduce the need for this double-reading, + and to allow the caller find the length of the object. + + * During "git rebase --merge", a conflicted patch could not be + skipped with "--skip" if the next one also conflicted. diff --git a/Documentation/RelNotes/2.1.0.txt b/Documentation/RelNotes/2.1.0.txt index 17360e5d53..13c7ec51e9 100644 --- a/Documentation/RelNotes/2.1.0.txt +++ b/Documentation/RelNotes/2.1.0.txt @@ -37,11 +37,14 @@ UI, Workflows & Features shorter than a page). * The logic and data used to compute the display width needed for - UTF-8 strings have been updated to match Unicode 6.3 better. + UTF-8 strings have been updated to match Unicode 7.0 better. * HTTP-based transports learned to propagate the error messages from the webserver better to the client coming over the HTTP transport. + * The completion script for bash (in contrib/) has been updated to + handle aliases that define complex sequence of commands better. + * The "core.preloadindex" configuration variable is by default enabled, allowing modern platforms to take advantage of the multiple cores they have. @@ -90,7 +93,12 @@ UI, Workflows & Features users need to explicitly set the variable to 'true' if they want to resurrect the now-ignored use case. - * "git replace" learned the "--edit" subcommand. + * "git replace" learned the "--edit" subcommand to create a + replacement by editing an existing object. + + * "git send-email" learned "--to-cover" and "--cc-cover" options, to + tell it to copy To: and Cc: headers found in the first input file + when emitting later input files. * "git svn" learned to cope with malformed timestamps with only one digit in the hour part, e.g. 2014-01-07T5:01:02.048176Z, emitted @@ -99,11 +107,35 @@ UI, Workflows & Features * "git tag" when editing the tag message shows the name of the tag being edited as a comment in the editor. + * "git verify-commit" command to check GPG signature in signed + commits, in a way similar to "git verify-tag" is used to check + signed tags, was added. + Performance, Internal Implementation, etc. * Build procedure for 'subtree' (in contrib/) has been cleaned up. + * The support for the profile-feedback build, which has been left + bit-rotten for quite a while, has been updated. + + * An experimental format to use two files (the base file and + incremental changes relative to it) to represent the index has been + introduced; this may reduce I/O cost of rewriting a large index + when only small part of the working tree changes. + + * Effort to shrink the size of patches Windows folks maintain on top + by upstreaming them continues. + + * Patches maintained by msysgit folks for Windows port are being + upstreamed here a bit by bit. + + * The leaf function to check validity of a refname format has been + micro-optimized, using SSE2 instructions when available. A few + breakages during its development have been caught and fixed already + but there might remain some more still; please test and report if + you find any. + * The `core.deltabasecachelimit` used to default to 16 MiB , but this proved to be too small, and has been bumped to 96 MiB. @@ -118,6 +150,9 @@ Performance, Internal Implementation, etc. example, "update-ref --stdin [-z]" has been updated to use this API. + * skip_prefix() and strip_suffix() API functions are used a lot more + widely throughout the codebase now. + * Parts of the test scripts can be skipped by using a range notation, e.g. "sh t1234-test.sh --run='1-4 6 8-'" to omit test piece 5 and 7 and run everything else. @@ -147,13 +182,23 @@ notes for details). * Mishandling of patterns in .gitignore that has trailing SPs quoted with backslashes (e.g. ones that end with "\ ") have been corrected. - (merge e61a6c1 pb/trim-trailing-spaces later to maint). + (merge 97c1364be6b pb/trim-trailing-spaces later to maint). * Reworded the error message given upon a failure to open an existing loose object file due to e.g. permission issues; it was reported as the object being corrupt, but that is not quite true. (merge d6c8a05 jk/report-fail-to-read-objects-better later to maint). + * "git log -2master" is a common typo that shows two commits starting + from whichever random branch that is not 'master' that happens to + be checked out currently. + (merge e3fa568 jc/revision-dash-count-parsing later to maint). + + * Code to avoid adding the same alternate object store twice was + subtly broken for a long time, but nobody seems to have noticed. + (merge 80b4785 rs/fix-alt-odb-path-comparison later to maint). + (merge 539e750 ek/alt-odb-entry-fix later to maint). + * The "%<(10,trunc)%s" pretty format specifier in the log family of commands is used to truncate the string to a given length (e.g. 10 in the example) with padding to column-align the output, but did @@ -161,6 +206,17 @@ notes for details). columns are different. (merge 7d50987 as/pretty-truncate later to maint). + * "%G" (nothing after G) is an invalid pretty format specifier, but + the parser did not notice it as garbage. + (merge 958b2eb jk/pretty-G-format-fixes later to maint). + + * A handful of code paths had to read the commit object more than + once when showing header fields that are usually not parsed. The + internal data structure to keep track of the contents of the commit + object has been updated to reduce the need for this double-reading, + and to allow the caller find the length of the object. + (merge 218aa3a jk/commit-buffer-length later to maint). + * The "mailmap.file" configuration option did not support the tilde expansion (i.e. ~user/path and ~/path). (merge 9352fd5 ow/config-mailmap-pathname later to maint). @@ -170,6 +226,10 @@ notes for details). couple of options unique to "git merge". (merge 8fee872 jk/complete-merge-pull later to maint). + * An ancient rewrite passed a wrong pointer to a curl library + function in a rarely used code path. + (merge 479eaa8 ah/fix-http-push later to maint). + * "--ignore-space-change" option of "git apply" ignored the spaces at the beginning of line too aggressively, which is inconsistent with the option of the same name "diff" and "git diff" have. @@ -185,6 +245,11 @@ notes for details). line endings. (merge 4d4813a bc/blame-crlf-test later to maint). + * "git clone -b brefs/tags/bar" would have mistakenly thought we were + following a single tag, even though it was a name of the branch, + because it incorrectly used strstr(). + (merge 60a5f5f jc/fix-clone-single-starting-at-a-tag later to maint). + * "git commit --allow-empty-messag -C $commit" did not work when the commit did not have any log message. (merge 076cbd6 jk/commit-C-pick-empty later to maint). @@ -194,6 +259,11 @@ notes for details). bit. (merge 5304810 jk/diff-files-assume-unchanged later to maint). + * "filter-branch" left an empty single-parent commit that results when + all parents of a merge commit gets mapped to the same commit, even + under "--prune-empty". + (merge 79bc4ef cb/filter-branch-prune-empty-degenerate-merges later to maint). + * "git format-patch" did not enforce the rule that the "--follow" option from the log/diff family of commands must be used with exactly one pathspec. @@ -219,6 +289,13 @@ notes for details). distinguish missing objects from type errors. (merge 77583e7 jk/index-pack-report-missing later to maint). + * "log --show-signature" incorrectly decided the color to paint a + mergetag that was and was not correctly validated. + (merge 42c55ce mg/fix-log-mergetag-color later to maint). + + * "log --show-signature" did not pay attention to "--graph" option. + (merge cf3983d zk/log-graph-showsig later to maint). + * "git mailinfo" used to read beyond the end of header string while parsing an incoming e-mail message to extract the patch. (merge b1a013d rs/mailinfo-header-cmp later to maint). @@ -228,11 +305,21 @@ notes for details). except for case differences. (merge baa37bf dt/merge-recursive-case-insensitive later to maint). + * Merging changes into a file that ends in an incomplete line made the + last line into a complete one, even when the other branch did not + change anything around the end of file. + (merge ba31180 mk/merge-incomplete-files later to maint). + * "git pack-objects" unnecessarily copied the previous contents when extending the hashtable, even though it will populate the table from scratch anyway. (merge fb79947 rs/pack-objects-no-unnecessary-realloc later to maint). + * Recent updates to "git repack" started to duplicate objects that + are in packfiles marked with .keep flag into the new packfile by + mistake. + (merge d078d85 jk/repack-pack-keep-objects later to maint). + * "git rerere forget" did not work well when merge.conflictstyle was set to a non-default value. (merge de3d8bb fc/rerere-conflict-style later to maint). @@ -253,6 +340,10 @@ notes for details). emptying the insn sheet. (merge ddb5432 rr/rebase-autostash-fix later to maint). + * During "git rebase --merge", a conflicted patch could not be + skipped with "--skip" if the next one also conflicted. + (merge 95104c7 bc/fix-rebase-merge-skip later to maint). + * "git show -s" (i.e. show log message only) used to incorrectly emit an extra blank line after a merge commit. (merge ad2f725 mk/show-s-no-extra-blank-line-for-merges later to maint). @@ -272,6 +363,10 @@ notes for details). them. (merge c215d3d jl/status-added-submodule-is-never-ignored later to maint). + * Documentation for "git submodule sync" forgot to say that the subcommand + can take the "--recursive" option. + (merge 9393ae7 mc/doc-submodule-sync-recurse later to maint). + * "git update-index --cacheinfo" in 2.0 release crashed on a malformed command line. (merge c8e1ee4 jc/rev-parse-argh-dashed-multi-words later to maint). diff --git a/Documentation/config.txt b/Documentation/config.txt index 9f467d3820..1d718bdb96 100644 --- a/Documentation/config.txt +++ b/Documentation/config.txt @@ -1905,12 +1905,7 @@ pack.useBitmaps:: you are debugging pack bitmaps. pack.writebitmaps:: - When true, git will write a bitmap index when packing all - objects to disk (e.g., when `git repack -a` is run). This - index can speed up the "counting objects" phase of subsequent - packs created for clones and fetches, at the cost of some disk - space and extra time spent on the initial repack. Defaults to - false. + This is a deprecated synonym for `repack.writeBitmaps`. pack.writeBitmapHashCache:: When true, git will include a "hash cache" section in the bitmap @@ -2187,7 +2182,15 @@ repack.packKeptObjects:: `--pack-kept-objects` was passed. See linkgit:git-repack[1] for details. Defaults to `false` normally, but `true` if a bitmap index is being written (either via `--write-bitmap-index` or - `pack.writeBitmaps`). + `repack.writeBitmaps`). + +repack.writeBitmaps:: + When true, git will write a bitmap index when packing all + objects to disk (e.g., when `git repack -a` is run). This + index can speed up the "counting objects" phase of subsequent + packs created for clones and fetches, at the cost of some disk + space and extra time spent on the initial repack. Defaults to + false. rerere.autoupdate:: When set to true, `git-rerere` updates the index with the diff --git a/Documentation/fetch-options.txt b/Documentation/fetch-options.txt index 92c68c3fda..b09a783ee3 100644 --- a/Documentation/fetch-options.txt +++ b/Documentation/fetch-options.txt @@ -72,6 +72,14 @@ endif::git-pull[] setting. See linkgit:git-config[1]. ifndef::git-pull[] +--refmap=<refspec>:: + When fetching refs listed on the command line, use the + specified refspec (can be given more than once) to map the + refs to remote-tracking branches, instead of the values of + `remote.*.fetch` configuration variables for the remote + repository. See section on "Configured Remote-tracking + Branches" for details. + -t:: --tags:: Fetch all tags from the remote (i.e., fetch remote tags diff --git a/Documentation/git-fetch.txt b/Documentation/git-fetch.txt index 5809aa4eb9..8deb61469d 100644 --- a/Documentation/git-fetch.txt +++ b/Documentation/git-fetch.txt @@ -17,22 +17,20 @@ SYNOPSIS DESCRIPTION ----------- -Fetches named heads or tags from one or more other repositories, -along with the objects necessary to complete them. +Fetch branches and/or tags (collectively, "refs") from one or more +other repositories, along with the objects necessary to complete their +histories. Remote-tracking branches are updated (see the description +of <refspec> below for ways to control this behavior). -The ref names and their object names of fetched refs are stored -in `.git/FETCH_HEAD`. This information is left for a later merge -operation done by 'git merge'. - -By default, tags are auto-followed. This means that when fetching -from a remote, any tags on the remote that point to objects that exist -in the local repository are fetched. The effect is to fetch tags that +By default, any tag that points into the histories being fetched is +also fetched; the effect is to fetch tags that point at branches that you are interested in. This default behavior -can be changed by using the --tags or --no-tags options, by -configuring remote.<name>.tagopt, or by using a refspec that fetches -tags explicitly. +can be changed by using the --tags or --no-tags options or by +configuring remote.<name>.tagopt. By using a refspec that fetches tags +explicitly, you can fetch tags that do not point into branches you +are interested in as well. -'git fetch' can fetch from either a single named repository, +'git fetch' can fetch from either a single named repository or URL, or from several repositories at once if <group> is given and there is a remotes.<group> entry in the configuration file. (See linkgit:git-config[1]). @@ -40,6 +38,10 @@ there is a remotes.<group> entry in the configuration file. When no remote is specified, by default the `origin` remote will be used, unless there's an upstream branch configured for the current branch. +The names of refs that are fetched, together with the object names +they point at, are written to `.git/FETCH_HEAD`. This information +may be used by scripts or other git commands, such as linkgit:git-pull[1]. + OPTIONS ------- include::fetch-options.txt[] @@ -49,6 +51,55 @@ include::pull-fetch-param.txt[] include::urls-remotes.txt[] +CONFIGURED REMOTE-TRACKING BRANCHES[[CRTB]] +------------------------------------------- + +You often interact with the same remote repository by +regularly and repeatedly fetching from it. In order to keep track +of the progress of such a remote repository, `git fetch` allows you +to configure `remote.<repository>.fetch` configuration variables. + +Typically such a variable may look like this: + +------------------------------------------------ +[remote "origin"] + fetch = +refs/heads/*:refs/remotes/origin/* +------------------------------------------------ + +This configuration is used in two ways: + +* When `git fetch` is run without specifying what branches + and/or tags to fetch on the command line, e.g. `git fetch origin` + or `git fetch`, `remote.<repository>.fetch` values are used as + the refspecs---they specify which refs to fetch and which local refs + to update. The example above will fetch + all branches that exist in the `origin` (i.e. any ref that matches + the left-hand side of the value, `refs/heads/*`) and update the + corresponding remote-tracking branches in the `refs/remotes/origin/*` + hierarchy. + +* When `git fetch` is run with explicit branches and/or tags + to fetch on the command line, e.g. `git fetch origin master`, the + <refspec>s given on the command line determine what are to be + fetched (e.g. `master` in the example, + which is a short-hand for `master:`, which in turn means + "fetch the 'master' branch but I do not explicitly say what + remote-tracking branch to update with it from the command line"), + and the example command will + fetch _only_ the 'master' branch. The `remote.<repository>.fetch` + values determine which + remote-tracking branch, if any, is updated. When used in this + way, the `remote.<repository>.fetch` values do not have any + effect in deciding _what_ gets fetched (i.e. the values are not + used as refspecs when the command-line lists refspecs); they are + only used to decide _where_ the refs that are fetched are stored + by acting as a mapping. + +The latter use of the `remote.<repository>.fetch` values can be +overridden by giving the `--refmap=<refspec>` parameter(s) on the +command line. + + EXAMPLES -------- @@ -76,6 +127,19 @@ the local repository by fetching from the branches (respectively) The `pu` branch will be updated even if it is does not fast-forward, because it is prefixed with a plus sign; `tmp` will not be. +* Peek at a remote's branch, without configuring the remote in your local +repository: ++ +------------------------------------------------ +$ git fetch git://git.kernel.org/pub/scm/git/git.git maint +$ git log FETCH_HEAD +------------------------------------------------ ++ +The first command fetches the `maint` branch from the repository at +`git://git.kernel.org/pub/scm/git/git.git` and the second command uses +`FETCH_HEAD` to examine the branch with linkgit:git-log[1]. The fetched +objects will eventually be removed by git's built-in housekeeping (see +linkgit:git-gc[1]). BUGS ---- diff --git a/Documentation/git-replace.txt b/Documentation/git-replace.txt index 61461b9f33..089dcac047 100644 --- a/Documentation/git-replace.txt +++ b/Documentation/git-replace.txt @@ -73,6 +73,14 @@ OPTIONS newly created object. See linkgit:git-var[1] for details about how the editor will be chosen. +--raw:: + When editing, provide the raw object contents rather than + pretty-printed ones. Currently this only affects trees, which + will be shown in their binary form. This is harder to work with, + but can help when repairing a tree that is so corrupted it + cannot be pretty-printed. Note that you may need to configure + your editor to cleanly read and write binary data. + -l <pattern>:: --list <pattern>:: List replace refs for objects that match the given pattern (or diff --git a/Documentation/git-rev-parse.txt b/Documentation/git-rev-parse.txt index 987395d22a..9bd76a5a6b 100644 --- a/Documentation/git-rev-parse.txt +++ b/Documentation/git-rev-parse.txt @@ -245,6 +245,10 @@ print a message to stderr and exit with nonzero status. --show-toplevel:: Show the absolute path of the top-level directory. +--shared-index-path:: + Show the path to the shared index file in split index mode, or + empty if not in split-index mode. + Other Options ~~~~~~~~~~~~~ diff --git a/Documentation/git-send-email.txt b/Documentation/git-send-email.txt index d0fa18aaa8..a60776eb57 100644 --- a/Documentation/git-send-email.txt +++ b/Documentation/git-send-email.txt @@ -248,6 +248,18 @@ Automating cc list. Default is the value of 'sendemail.signedoffbycc' configuration value; if that is unspecified, default to --signed-off-by-cc. +--[no-]cc-cover:: + If this is set, emails found in Cc: headers in the first patch of + the series (typically the cover letter) are added to the cc list + for each email set. Default is the value of 'sendemail.cccover' + configuration value; if that is unspecified, default to --no-cc-cover. + +--[no-]to-cover:: + If this is set, emails found in To: headers in the first patch of + the series (typically the cover letter) are added to the to list + for each email set. Default is the value of 'sendemail.tocover' + configuration value; if that is unspecified, default to --no-to-cover. + --suppress-cc=<category>:: Specify an additional category of recipients to suppress the auto-cc of: diff --git a/Documentation/git-submodule.txt b/Documentation/git-submodule.txt index 89c4d3e394..8e6af65da0 100644 --- a/Documentation/git-submodule.txt +++ b/Documentation/git-submodule.txt @@ -20,7 +20,7 @@ SYNOPSIS 'git submodule' [--quiet] summary [--cached|--files] [(-n|--summary-limit) <n>] [commit] [--] [<path>...] 'git submodule' [--quiet] foreach [--recursive] <command> -'git submodule' [--quiet] sync [--] [<path>...] +'git submodule' [--quiet] sync [--recursive] [--] [<path>...] DESCRIPTION diff --git a/Documentation/git-update-index.txt b/Documentation/git-update-index.txt index d6de4a008c..dfc09d93d8 100644 --- a/Documentation/git-update-index.txt +++ b/Documentation/git-update-index.txt @@ -161,6 +161,17 @@ may not support it yet. Only meaningful with `--stdin` or `--index-info`; paths are separated with NUL character instead of LF. +--split-index:: +--no-split-index:: + Enable or disable split index mode. If enabled, the index is + split into two files, $GIT_DIR/index and $GIT_DIR/sharedindex.<SHA-1>. + Changes are accumulated in $GIT_DIR/index while the shared + index file contains all index entries stays unchanged. If + split-index mode is already enabled and `--split-index` is + given again, all changes in $GIT_DIR/index are pushed back to + the shared index file. This mode is designed for very large + indexes that take a signficant amount of time to read or write. + \--:: Do not interpret any more arguments as options. diff --git a/Documentation/git-verify-commit.txt b/Documentation/git-verify-commit.txt new file mode 100644 index 0000000000..9413e2802a --- /dev/null +++ b/Documentation/git-verify-commit.txt @@ -0,0 +1,28 @@ +git-verify-commit(1) +==================== + +NAME +---- +git-verify-commit - Check the GPG signature of commits + +SYNOPSIS +-------- +[verse] +'git verify-commit' <commit>... + +DESCRIPTION +----------- +Validates the gpg signature created by 'git commit -S'. + +OPTIONS +------- +-v:: +--verbose:: + Print the contents of the commit object before validating it. + +<commit>...:: + SHA-1 identifiers of Git commit objects. + +GIT +--- +Part of the linkgit:git[1] suite diff --git a/Documentation/git.txt b/Documentation/git.txt index fcb8afa200..05857c96ff 100644 --- a/Documentation/git.txt +++ b/Documentation/git.txt @@ -43,9 +43,11 @@ unreleased) version of Git, that is available from the 'master' branch of the `git.git` repository. Documentation for older releases are available here: -* link:v2.0.0/git.html[documentation for release 2.0] +* link:v2.0.2/git.html[documentation for release 2.0.2] * release notes for + link:RelNotes/2.0.2.txt[2.0.2], + link:RelNotes/2.0.1.txt[2.0.1], link:RelNotes/2.0.0.txt[2.0.0]. * link:v1.9.4/git.html[documentation for release 1.9.4] diff --git a/Documentation/gitrepository-layout.txt b/Documentation/gitrepository-layout.txt index 17d2ea6c1e..79653f3134 100644 --- a/Documentation/gitrepository-layout.txt +++ b/Documentation/gitrepository-layout.txt @@ -155,6 +155,10 @@ index:: The current index file for the repository. It is usually not found in a bare repository. +sharedindex.<SHA-1>:: + The shared index part, to be referenced by $GIT_DIR/index and + other temporary index files. Only valid in split index mode. + info:: Additional information about the repository is recorded in this directory. diff --git a/Documentation/pull-fetch-param.txt b/Documentation/pull-fetch-param.txt index 18cffc25b8..1ebbf1d738 100644 --- a/Documentation/pull-fetch-param.txt +++ b/Documentation/pull-fetch-param.txt @@ -12,9 +12,23 @@ ifndef::git-pull[] endif::git-pull[] <refspec>:: - The format of a <refspec> parameter is an optional plus - `+`, followed by the source ref <src>, followed - by a colon `:`, followed by the destination ref <dst>. + Specifies which refs to fetch and which local refs to update. + When no <refspec>s appear on the command line, the refs to fetch + are read from `remote.<repository>.fetch` variables instead +ifndef::git-pull[] + (see <<CRTB,CONFIGURED REMOTE-TRACKING BRANCHES>> below). +endif::git-pull[] +ifdef::git-pull[] + (see linkgit:git-fetch[1]). +endif::git-pull[] ++ +The format of a <refspec> parameter is an optional plus +`+`, followed by the source ref <src>, followed +by a colon `:`, followed by the destination ref <dst>. +The colon can be omitted when <dst> is empty. ++ +`tag <tag>` means the same as `refs/tags/<tag>:refs/tags/<tag>`; +it requests fetching everything up to the given tag. + The remote ref that matches <src> is fetched, and if <dst> is not empty string, the local @@ -24,55 +38,34 @@ is updated even if it does not result in a fast-forward update. + [NOTE] -If the remote branch from which you want to pull is -modified in non-linear ways such as being rewound and -rebased frequently, then a pull will attempt a merge with -an older version of itself, likely conflict, and fail. -It is under these conditions that you would want to use -the `+` sign to indicate non-fast-forward updates will -be needed. There is currently no easy way to determine -or declare that a branch will be made available in a -repository with this behavior; the pulling user simply +When the remote branch you want to fetch is known to +be rewound and rebased regularly, it is expected that +its new tip will not be descendant of its previous tip +(as stored in your remote-tracking branch the last time +you fetched). You would want +to use the `+` sign to indicate non-fast-forward updates +will be needed for such branches. There is no way to +determine or declare that a branch will be made available +in a repository with this behavior; the pulling user simply must know this is the expected usage pattern for a branch. -+ -[NOTE] -You never do your own development on branches that appear -on the right hand side of a <refspec> colon on `Pull:` lines; -they are to be updated by 'git fetch'. If you intend to do -development derived from a remote branch `B`, have a `Pull:` -line to track it (i.e. `Pull: B:remote-B`), and have a separate -branch `my-B` to do your development on top of it. The latter -is created by `git branch my-B remote-B` (or its equivalent `git -checkout -b my-B remote-B`). Run `git fetch` to keep track of -the progress of the remote side, and when you see something new -on the remote branch, merge it into your development branch with -`git pull . remote-B`, while you are on `my-B` branch. +ifdef::git-pull[] + [NOTE] There is a difference between listing multiple <refspec> directly on 'git pull' command line and having multiple -`Pull:` <refspec> lines for a <repository> and running +`remote.<repository>.fetch` entries in your configuration +for a <repository> and running a 'git pull' command without any explicit <refspec> parameters. -<refspec> listed explicitly on the command line are always +<refspec>s listed explicitly on the command line are always merged into the current branch after fetching. In other words, -if you list more than one remote refs, you would be making -an Octopus. While 'git pull' run without any explicit <refspec> -parameter takes default <refspec>s from `Pull:` lines, it -merges only the first <refspec> found into the current branch, -after fetching all the remote refs. This is because making an +if you list more than one remote ref, 'git pull' will create +an Octopus merge. On the other hand, if you do not list any +explicit <refspec> parameter on the command line, 'git pull' +will fetch all the <refspec>s it finds in the +`remote.<repository>.fetch` configuration and merge +only the first <refspec> found into the current branch. +This is because making an Octopus from remote refs is rarely done, while keeping track of multiple remote heads in one-go by fetching more than one is often useful. -+ -Some short-cut notations are also supported. -+ -* `tag <tag>` means the same as `refs/tags/<tag>:refs/tags/<tag>`; - it requests fetching everything up to the given tag. -ifndef::git-pull[] -* A parameter <ref> without a colon fetches that ref into FETCH_HEAD, -endif::git-pull[] -ifdef::git-pull[] -* A parameter <ref> without a colon merges <ref> into the current - branch, endif::git-pull[] - and updates the remote-tracking branches (if any). diff --git a/Documentation/technical/api-hashmap.txt b/Documentation/technical/api-hashmap.txt index b977ae8bbb..ad7a5bddd2 100644 --- a/Documentation/technical/api-hashmap.txt +++ b/Documentation/technical/api-hashmap.txt @@ -8,11 +8,19 @@ Data Structures `struct hashmap`:: - The hash table structure. + The hash table structure. Members can be used as follows, but should + not be modified directly: + -The `size` member keeps track of the total number of entries. The `cmpfn` -member is a function used to compare two entries for equality. The `table` and -`tablesize` members store the hash table and its size, respectively. +The `size` member keeps track of the total number of entries (0 means the +hashmap is empty). ++ +`tablesize` is the allocated size of the hash table. A non-0 value indicates +that the hashmap is initialized. It may also be useful for statistical purposes +(i.e. `size / tablesize` is the current load factor). ++ +`cmpfn` stores the comparison function specified in `hashmap_init()`. In +advanced scenarios, it may be useful to change this, e.g. to switch between +case-sensitive and case-insensitive lookup. `struct hashmap_entry`:: @@ -58,6 +66,15 @@ Functions + `strihash` and `memihash` are case insensitive versions. +`unsigned int sha1hash(const unsigned char *sha1)`:: + + Converts a cryptographic hash (e.g. SHA-1) into an int-sized hash code + for use in hash tables. Cryptographic hashes are supposed to have + uniform distribution, so in contrast to `memhash()`, this just copies + the first `sizeof(int)` bytes without shuffling any bits. Note that + the results will be different on big-endian and little-endian + platforms, so they should not be stored or transferred over the net. + `void hashmap_init(struct hashmap *map, hashmap_cmp_fn equals_function, size_t initial_size)`:: Initializes a hashmap structure. @@ -101,6 +118,20 @@ hashmap_entry) that has at least been initialized with the proper hash code If an entry with matching hash code is found, `key` and `keydata` are passed to `hashmap_cmp_fn` to decide whether the entry matches the key. +`void *hashmap_get_from_hash(const struct hashmap *map, unsigned int hash, const void *keydata)`:: + + Returns the hashmap entry for the specified hash code and key data, + or NULL if not found. ++ +`map` is the hashmap structure. ++ +`hash` is the hash code of the entry to look up. ++ +If an entry with matching hash code is found, `keydata` is passed to +`hashmap_cmp_fn` to decide whether the entry matches the key. The +`entry_or_key` parameter points to a bogus hashmap_entry structure that +should not be used in the comparison. + `void *hashmap_get_next(const struct hashmap *map, const void *entry)`:: Returns the next equal hashmap entry, or NULL if not found. This can be @@ -162,6 +193,21 @@ more entries. `hashmap_iter_first` is a combination of both (i.e. initializes the iterator and returns the first entry, if any). +`const char *strintern(const char *string)`:: +`const void *memintern(const void *data, size_t len)`:: + + Returns the unique, interned version of the specified string or data, + similar to the `String.intern` API in Java and .NET, respectively. + Interned strings remain valid for the entire lifetime of the process. ++ +Can be used as `[x]strdup()` or `xmemdupz` replacement, except that interned +strings / data must not be modified or freed. ++ +Interned strings are best used for short strings with high probability of +duplicates. ++ +Uses a hashmap to store the pool of interned strings. + Usage example ------------- diff --git a/Documentation/technical/api-strbuf.txt b/Documentation/technical/api-strbuf.txt index 077a7096a4..f9c06a7573 100644 --- a/Documentation/technical/api-strbuf.txt +++ b/Documentation/technical/api-strbuf.txt @@ -7,10 +7,10 @@ use the mem* functions than a str* one (memchr vs. strchr e.g.). Though, one has to be careful about the fact that str* functions often stop on NULs and that strbufs may have embedded NULs. -An strbuf is NUL terminated for convenience, but no function in the +A strbuf is NUL terminated for convenience, but no function in the strbuf API actually relies on the string being free of NULs. -strbufs has some invariants that are very important to keep in mind: +strbufs have some invariants that are very important to keep in mind: . The `buf` member is never NULL, so it can be used in any usual C string operations safely. strbuf's _have_ to be initialized either by @@ -56,8 +56,8 @@ Data structures * `struct strbuf` This is the string buffer structure. The `len` member can be used to -determine the current length of the string, and `buf` member provides access to -the string itself. +determine the current length of the string, and `buf` member provides +access to the string itself. Functions --------- @@ -202,7 +202,7 @@ strbuf_addstr(sb, "immediate string"); `strbuf_addbuf`:: - Copy the contents of an other buffer at the end of the current one. + Copy the contents of another buffer at the end of the current one. `strbuf_adddup`:: diff --git a/Documentation/technical/http-protocol.txt b/Documentation/technical/http-protocol.txt index 59be59b0eb..229f845dfa 100644 --- a/Documentation/technical/http-protocol.txt +++ b/Documentation/technical/http-protocol.txt @@ -60,7 +60,7 @@ Because Git repositories are accessed by standard path components server administrators MAY use directory based permissions within their HTTP server to control repository access. -Clients SHOULD support Basic authentication as described by RFC 2616. +Clients SHOULD support Basic authentication as described by RFC 2617. Servers SHOULD support Basic authentication by relying upon the HTTP server placed in front of the Git server software. diff --git a/Documentation/technical/index-format.txt b/Documentation/technical/index-format.txt index f352a9b22e..fe6f31667d 100644 --- a/Documentation/technical/index-format.txt +++ b/Documentation/technical/index-format.txt @@ -129,6 +129,9 @@ Git index format (Version 4) In version 4, the padding after the pathname does not exist. + Interpretation of index entries in split index mode is completely + different. See below for details. + == Extensions === Cached tree @@ -198,3 +201,35 @@ Git index format - At most three 160-bit object names of the entry in stages from 1 to 3 (nothing is written for a missing stage). +=== Split index + + In split index mode, the majority of index entries could be stored + in a separate file. This extension records the changes to be made on + top of that to produce the final index. + + The signature for this extension is { 'l', 'i, 'n', 'k' }. + + The extension consists of: + + - 160-bit SHA-1 of the shared index file. The shared index file path + is $GIT_DIR/sharedindex.<SHA-1>. If all 160 bits are zero, the + index does not require a shared index file. + + - An ewah-encoded delete bitmap, each bit represents an entry in the + shared index. If a bit is set, its corresponding entry in the + shared index will be removed from the final index. Note, because + a delete operation changes index entry positions, but we do need + original positions in replace phase, it's best to just mark + entries for removal, then do a mass deletion after replacement. + + - An ewah-encoded replace bitmap, each bit represents an entry in + the shared index. If a bit is set, its corresponding entry in the + shared index will be replaced with an entry in this index + file. All replaced entries are stored in sorted order in this + index. The first "1" bit in the replace bitmap corresponds to the + first index entry, the second "1" bit to the second entry and so + on. Replaced entries may have empty path names to save space. + + The remaining index entries after replaced ones will be added to the + final index. These added entries are also sorted by entry namme then + stage. |