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2017-08-27Merge branch 'tb/apply-with-crlf'Junio C Hamano
"git apply" that is used as a better "patch -p1" failed to apply a taken from a file with CRLF line endings to a file with CRLF line endings. The root cause was because it misused convert_to_git() that tried to do "safe-crlf" processing by looking at the index entry at the same path, which is a nonsense---in that mode, "apply" is not working on the data in (or derived from) the index at all. This has been fixed. * tb/apply-with-crlf: apply: file commited with CRLF should roundtrip diff and apply convert: add SAFE_CRLF_KEEP_CRLF
2017-08-22Merge branch 'rs/apply-lose-prefix-length'Junio C Hamano
Code clean-up. * rs/apply-lose-prefix-length: apply: remove prefix_length member from apply_state
2017-08-19apply: file commited with CRLF should roundtrip diff and applyTorsten Bögershausen
When a file had been commited with CRLF but now .gitattributes say "* text=auto" (or core.autocrlf is true), the following does not roundtrip, `git apply` fails: printf "Added line\r\n" >>file && git diff >patch && git checkout -- . && git apply patch Before applying the patch, the file from working tree is converted into the index format (clean filter, CRLF conversion, ...). Here, when commited with CRLF, the line endings should not be converted. Note that `git apply --index` or `git apply --cache` doesn't call convert_to_git() because the source material is already in index format. Analyze the patch if there is a) any context line with CRLF, or b) if any line with CRLF is to be removed. In this case the patch file `patch` has mixed line endings, for a) it looks like this: diff --git a/one b/one index 533790e..c30dea8 100644 --- a/one +++ b/one @@ -1 +1,2 @@ a\r +b\r And for b) it looks like this: diff --git a/one b/one index 533790e..485540d 100644 --- a/one +++ b/one @@ -1 +1 @@ -a\r +b\r If `git apply` detects that the patch itself has CRLF, (look at the line " a\r" or "-a\r" above), the new flag crlf_in_old is set in "struct patch" and two things will happen: - read_old_data() will not convert CRLF into LF by calling convert_to_git(..., SAFE_CRLF_KEEP_CRLF); - The WS_CR_AT_EOL bit is set in the "white space rule", CRLF are no longer treated as white space. While at there, make it clear that read_old_data() in apply.c knows what it wants convert_to_git() to do with respect to CRLF. In fact, this codepath is about applying a patch to a file in the filesystem, which may not exist in the index, or may exist but may not match what is recorded in the index, or in the extreme case, we may not even be in a Git repository. If convert_to_git() peeked at the index while doing its work, it *would* be a bug. Pass NULL instead of &the_index to convert_to_git() to make sure we catch future bugs to clarify this. Update the test in t4124: split one test case into 3: - Detect the " a\r" line in the patch - Detect the "-a\r" line in the patch - Use LF in repo and CLRF in the worktree. Reported-by: Anthony Sottile <asottile@umich.edu> Signed-off-by: Torsten Bögershausen <tboegi@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-08-11Merge branch 'rs/move-array'Junio C Hamano
Code clean-up. * rs/move-array: ls-files: don't try to prune an empty index apply: use COPY_ARRAY and MOVE_ARRAY in update_image() use MOVE_ARRAY add MOVE_ARRAY
2017-08-09apply: remove prefix_length member from apply_stateRené Scharfe
Use a NULL-and-NUL check to see if we have a prefix and consistently use C string functions on it instead of storing its length in a member of struct apply_state. This avoids strlen() calls and simplifies the code. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-07-18apply: use COPY_ARRAY and MOVE_ARRAY in update_image()René Scharfe
Simplify the code by using the helper macros COPY_ARRAY and MOVE_ARRAY, which also makes them more robust in the case we copy or move no lines, as they allow using NULL points in that case, while memcpy(3) and memmove(3) don't. Found with Clang's UBSan. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-07-17sha1_name: convert get_sha1* to get_oid*brian m. carlson
Now that all the callers of get_sha1 directly or indirectly use struct object_id, rename the functions starting with get_sha1 to start with get_oid. Convert the internals in sha1_name.c to use struct object_id as well, and eliminate explicit length checks where possible. Convert a use of 40 in get_oid_basic to GIT_SHA1_HEXSZ. Outside of sha1_name.c and cache.h, this transition was made with the following semantic patch: @@ expression E1, E2; @@ - get_sha1(E1, E2.hash) + get_oid(E1, &E2) @@ expression E1, E2; @@ - get_sha1(E1, E2->hash) + get_oid(E1, E2) @@ expression E1, E2; @@ - get_sha1_committish(E1, E2.hash) + get_oid_committish(E1, &E2) @@ expression E1, E2; @@ - get_sha1_committish(E1, E2->hash) + get_oid_committish(E1, E2) @@ expression E1, E2; @@ - get_sha1_treeish(E1, E2.hash) + get_oid_treeish(E1, &E2) @@ expression E1, E2; @@ - get_sha1_treeish(E1, E2->hash) + get_oid_treeish(E1, E2) @@ expression E1, E2; @@ - get_sha1_commit(E1, E2.hash) + get_oid_commit(E1, &E2) @@ expression E1, E2; @@ - get_sha1_commit(E1, E2->hash) + get_oid_commit(E1, E2) @@ expression E1, E2; @@ - get_sha1_tree(E1, E2.hash) + get_oid_tree(E1, &E2) @@ expression E1, E2; @@ - get_sha1_tree(E1, E2->hash) + get_oid_tree(E1, E2) @@ expression E1, E2; @@ - get_sha1_blob(E1, E2.hash) + get_oid_blob(E1, &E2) @@ expression E1, E2; @@ - get_sha1_blob(E1, E2->hash) + get_oid_blob(E1, E2) @@ expression E1, E2, E3, E4; @@ - get_sha1_with_context(E1, E2, E3.hash, E4) + get_oid_with_context(E1, E2, &E3, E4) @@ expression E1, E2, E3, E4; @@ - get_sha1_with_context(E1, E2, E3->hash, E4) + get_oid_with_context(E1, E2, E3, E4) Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-07-13Merge branch 'rs/apply-avoid-over-reading'Junio C Hamano
Code cleanup. * rs/apply-avoid-over-reading: apply: use strcmp(3) for comparing strings in gitdiff_verify_name()
2017-07-10Merge branch 'ab/wildmatch'Junio C Hamano
Minor code cleanup. * ab/wildmatch: wildmatch: remove unused wildopts parameter
2017-07-09apply: use strcmp(3) for comparing strings in gitdiff_verify_name()René Scharfe
We don't know the length of the C string "another". It could be shorter than "name", which we compare it to using memchr(3). Call strcmp(3) instead to avoid running over the end of the former, and get rid of a strlen(3) call as a bonus. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-07-07Merge branch 'rs/apply-avoid-over-reading'Junio C Hamano
Code clean-up to fix possible buffer over-reading. * rs/apply-avoid-over-reading: apply: use starts_with() in gitdiff_verify_name()
2017-07-01apply: use starts_with() in gitdiff_verify_name()René Scharfe
Avoid running over the end of line -- a C string whose length is not known to this function -- by using starts_with() instead of memcmp(3) for checking if it starts with "/dev/null". Also simply include the newline in the string constant to compare against. Drop a comment that just states the obvious. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-30Merge branch 'rs/apply-validate-input'Junio C Hamano
Tighten error checks for invalid "git apply" input. * rs/apply-validate-input: apply: check git diffs for mutually exclusive header lines apply: check git diffs for invalid file modes apply: check git diffs for missing old filenames
2017-06-28apply: check git diffs for mutually exclusive header linesRené Scharfe
A file can either be added, removed, copied, or renamed, but no two of these actions can be done by the same patch. Some of these combinations provoke error messages due to missing file names, and some are only caught by an assertion. Check git patches already as they are parsed and report conflicting lines on sight. Found by Vegard Nossum using AFL. Reported-by: Vegard Nossum <vegard.nossum@oracle.com> Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-27apply: check git diffs for invalid file modesRené Scharfe
An empty string as mode specification is accepted silently by git apply, as Vegard Nossum found out using AFL. It's interpreted as zero. Reject such bogus file modes, and only accept ones consisting exclusively of octal digits. Reported-by: Vegard Nossum <vegard.nossum@oracle.com> Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-27apply: check git diffs for missing old filenamesRené Scharfe
2c93286a (fix "git apply --index ..." not to deref NULL) added a check for git patches missing a +++ line, preventing a segfault. Check for missing --- lines as well, and add a test for each case. Found by Vegard Nossum using AFL. Original-patch-by: Vegard Nossum <vegard.nossum@oracle.com> Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-25Merge branch 'ab/free-and-null'Junio C Hamano
A common pattern to free a piece of memory and assign NULL to the pointer that used to point at it has been replaced with a new FREE_AND_NULL() macro. * ab/free-and-null: *.[ch] refactoring: make use of the FREE_AND_NULL() macro coccinelle: make use of the "expression" FREE_AND_NULL() rule coccinelle: add a rule to make "expression" code use FREE_AND_NULL() coccinelle: make use of the "type" FREE_AND_NULL() rule coccinelle: add a rule to make "type" code use FREE_AND_NULL() git-compat-util: add a FREE_AND_NULL() wrapper around free(ptr); ptr = NULL
2017-06-25Merge branch 'bw/config-h'Junio C Hamano
Fix configuration codepath to pay proper attention to commondir that is used in multi-worktree situation, and isolate config API into its own header file. * bw/config-h: config: don't implicitly use gitdir or commondir config: respect commondir setup: teach discover_git_directory to respect the commondir config: don't include config.h by default config: remove git_config_iter config: create config.h
2017-06-25Merge branch 'bw/ls-files-sans-the-index'Junio C Hamano
Code clean-up. * bw/ls-files-sans-the-index: ls-files: factor out tag calculation ls-files: factor out debug info into a function ls-files: convert show_files to take an index ls-files: convert show_ce_entry to take an index ls-files: convert prune_cache to take an index ls-files: convert ce_excluded to take an index ls-files: convert show_ru_info to take an index ls-files: convert show_other_files to take an index ls-files: convert show_killed_files to take an index ls-files: convert write_eolinfo to take an index ls-files: convert overlay_tree_on_cache to take an index tree: convert read_tree to take an index parameter convert: convert renormalize_buffer to take an index convert: convert convert_to_git to take an index convert: convert convert_to_git_filter_fd to take an index convert: convert crlf_to_git to take an index convert: convert get_cached_convert_stats_ascii to take an index
2017-06-24wildmatch: remove unused wildopts parameterÆvar Arnfjörð Bjarmason
Remove the unused wildopts placeholder struct from being passed to all wildmatch() invocations, or rather remove all the boilerplate NULL parameters. This parameter was added back in commit 9b3497cab9 ("wildmatch: rename constants and update prototype", 2013-01-01) as a placeholder for future use. Over 4 years later nothing has made use of it, let's just remove it. It can be added in the future if we find some reason to start using such a parameter. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-23Merge branch 'pc/dir-count-slashes'Junio C Hamano
Three instances of the same helper function have been consolidated to one. * pc/dir-count-slashes: dir: create function count_slashes()
2017-06-16coccinelle: make use of the "type" FREE_AND_NULL() ruleÆvar Arnfjörð Bjarmason
Apply the result of the just-added coccinelle rule. This manually excludes a few occurrences, mostly things that resulted in many FREE_AND_NULL() on one line, that'll be manually fixed in a subsequent change. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-15config: don't include config.h by defaultBrandon Williams
Stop including config.h by default in cache.h. Instead only include config.h in those files which require use of the config system. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-13Merge branch 'jc/noent-notdir'Junio C Hamano
Our code often opens a path to an optional file, to work on its contents when we can successfully open it. We can ignore a failure to open if such an optional file does not exist, but we do want to report a failure in opening for other reasons (e.g. we got an I/O error, or the file is there, but we lack the permission to open). The exact errors we need to ignore are ENOENT (obviously) and ENOTDIR (less obvious). Instead of repeating comparison of errno with these two constants, introduce a helper function to do so. * jc/noent-notdir: treewide: use is_missing_file_error() where ENOENT and ENOTDIR are checked compat-util: is_missing_file_error()
2017-06-13convert: convert convert_to_git to take an indexBrandon Williams
Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-12dir: create function count_slashes()Prathamesh Chavan
Similar functions exist in apply.c and builtin/show-branch.c for counting the number of slashes in a string. Also in the later patches, we introduce a third caller for the same. Hence, we unify it now by cleaning the existing functions and declaring a common function count_slashes in dir.h and implementing it in dir.c to remove this code duplication. Mentored-by: Christian Couder <christian.couder@gmail.com> Mentored-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Prathamesh Chavan <pc44800@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-30treewide: use is_missing_file_error() where ENOENT and ENOTDIR are checkedJunio C Hamano
Using the is_missing_file_error() helper introduced in the previous step, update all hits from $ git grep -e ENOENT --and -e ENOTDIR There are codepaths that only check ENOENT, and it is possible that some of them should be checking both. Updating them is kept out of this step deliberately, as we do not want to change behaviour in this step. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-16Merge branch 'jc/apply-fix-mismerge'Junio C Hamano
* jc/apply-fix-mismerge: apply.c: fix whitespace-only mismerge
2017-05-09apply.c: fix whitespace-only mismergeJunio C Hamano
4af9a7d3 ("Merge branch 'bc/object-id'", 2016-09-19) involved merging a lot of changes made to builtin/apply.c on the side branch manually to apply.c as an intervening commit 13b5af22 ("apply: move libified code from builtin/apply.c to apply.{c,h}", 2016-04-22) moved a lot of the lines changed on the side branch to a different file apply.c at the top-level, requiring manual patching of it. Apparently, the maintainer screwed up and made the code indent in a funny way while doing so. Reported-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-21prefix_filename: return newly allocated stringJeff King
The prefix_filename() function returns a pointer to static storage, which makes it easy to use dangerously. We already fixed one buggy caller in hash-object recently, and the calls in apply.c are suspicious (I didn't dig in enough to confirm that there is a bug, but we call the function once in apply_all_patches() and then again indirectly from parse_chunk()). Let's make it harder to get wrong by allocating the return value. For simplicity, we'll do this even when the prefix is empty (and we could just return the original file pointer). That will cause us to allocate sometimes when we wouldn't otherwise need to, but this function isn't called in performance critical code-paths (and it already _might_ allocate on any given call, so a caller that cares about performance is questionable anyway). The downside is that the callers need to remember to free() the result to avoid leaking. Most of them already used xstrdup() on the result, so we know they are OK. The remainder have been converted to use free() as appropriate. I considered retaining a prefix_filename_unsafe() for cases where we know the static lifetime is OK (and handling the cleanup is awkward). This is only a handful of cases, though, and it's not worth the mental energy in worrying about whether the "unsafe" variant is OK to use in any situation. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-21prefix_filename: drop length parameterJeff King
This function takes the prefix as a ptr/len pair, but in every caller the length is exactly strlen(ptr). Let's simplify the interface and just take the string. This saves callers specifying it (and in some cases handling a NULL prefix). In a handful of cases we had the length already without calling strlen, so this is technically slower. But it's not likely to matter (after all, if the prefix is non-empty we'll allocate and copy it into a buffer anyway). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-01-31apply: use SWAP macroRené Scharfe
Use the exported macro SWAP instead of the file-scoped macro swap and remove the latter's definition. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-07hold_locked_index(): align error handling with hold_lockfile_for_update()Junio C Hamano
Callers of the hold_locked_index() function pass 0 when they want to prepare to write a new version of the index file without wishing to die or emit an error message when the request fails (e.g. somebody else already held the lock), and pass 1 when they want the call to die upon failure. This option is called LOCK_DIE_ON_ERROR by the underlying lockfile API, and the hold_locked_index() function translates the paramter to LOCK_DIE_ON_ERROR when calling the hold_lock_file_for_update(). Replace these hardcoded '1' with LOCK_DIE_ON_ERROR and stop translating. Callers other than the ones that are replaced with this change pass '0' to the function; no behaviour change is intended with this patch. Signed-off-by: Junio C Hamano <gitster@pobox.com> --- Among the callers of hold_locked_index() that passes 0: - diff.c::refresh_index_quietly() at the end of "git diff" is an opportunistic update; it leaks the lockfile structure but it is just before the program exits and nobody should care. - builtin/describe.c::cmd_describe(), builtin/commit.c::cmd_status(), sequencer.c::read_and_refresh_cache() are all opportunistic updates and they are OK. - builtin/update-index.c::cmd_update_index() takes a lock upfront but we may end up not needing to update the index (i.e. the entries may be fully up-to-date), in which case we do not need to issue an error upon failure to acquire the lock. We do diagnose and die if we indeed need to update, so it is OK. - wt-status.c::require_clean_work_tree() IS BUGGY. It asks silence, does not check the returned value. Compare with callsites like cmd_describe() and cmd_status() to notice that it is wrong to call update_index_if_able() unconditionally.
2016-10-18i18n: apply: mark error message for translationVasco Almeida
Update test to reflect changes. Signed-off-by: Vasco Almeida <vascomalmeida@sapo.pt> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-10-14i18n: apply: mark error messages for translationVasco Almeida
Mark error messages for translation passed to error() and die() functions. Signed-off-by: Vasco Almeida <vascomalmeida@sapo.pt> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-10-14i18n: apply: mark info messages for translationVasco Almeida
Mark messages for translation printed to stderr. Signed-off-by: Vasco Almeida <vascomalmeida@sapo.pt> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-10-14i18n: apply: mark plural string for translationVasco Almeida
Mark plural string for translation using Q_(). Signed-off-by: Vasco Almeida <vascomalmeida@sapo.pt> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-22introduce CHECKOUT_INITRené Scharfe
Add a static initializer for struct checkout and use it throughout the code base. It's shorter, avoids a memset(3) call and makes sure the base_dir member is initialized to a valid (empty) string. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-19Merge branch 'bc/object-id'Junio C Hamano
The "unsigned char sha1[20]" to "struct object_id" conversion continues. Notable changes in this round includes that ce->sha1, i.e. the object name recorded in the cache_entry, turns into an object_id. It had merge conflicts with a few topics in flight (Christian's "apply.c split", Dscho's "cat-file --filters" and Jeff Hostetler's "status --porcelain-v2"). Extra sets of eyes double-checking for mismerges are highly appreciated. * bc/object-id: builtin/reset: convert to use struct object_id builtin/commit-tree: convert to struct object_id builtin/am: convert to struct object_id refs: add an update_ref_oid function. sha1_name: convert get_sha1_mb to struct object_id builtin/update-index: convert file to struct object_id notes: convert init_notes to use struct object_id builtin/rm: convert to use struct object_id builtin/blame: convert file to use struct object_id Convert read_mmblob to take struct object_id. notes-merge: convert struct notes_merge_pair to struct object_id builtin/checkout: convert some static functions to struct object_id streaming: make stream_blob_to_fd take struct object_id builtin: convert textconv_object to use struct object_id builtin/cat-file: convert some static functions to struct object_id builtin/cat-file: convert struct expand_data to use struct object_id builtin/log: convert some static functions to use struct object_id builtin/blame: convert struct origin to use struct object_id builtin/apply: convert static functions to struct object_id cache: convert struct cache_entry to use struct object_id
2016-09-07apply: learn to use a different index fileChristian Couder
Sometimes we want to apply in a different index file. Before the apply functionality was libified it was possible to use the GIT_INDEX_FILE environment variable, for this purpose. But now, as the apply functionality has been libified, it should be possible to do that in a libified way. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-07apply: pass apply state to build_fake_ancestor()Christian Couder
To libify git apply functionality, we will need to read from a different index file in get_current_sha1(). This index file will be stored in "struct apply_state", so let's pass the state to build_fake_ancestor() which will later pass it to get_current_sha1(). Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-07apply: move libified code from builtin/apply.c to apply.{c,h}Christian Couder
As most of the apply code in builtin/apply.c has been libified by a number of previous commits, it can now be moved to apply.{c,h}, so that more code can use it. Helped-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Helped-by: Ramsay Jones <ramsay@ramsayjones.plus.com> Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-07apply: refactor `git apply` option parsingChristian Couder
Parsing `git apply` options can be useful to other commands that want to call the libified apply functionality, because this way they can easily pass some options from their own command line to the libified apply functionality. This will be used by `git am` in a following patch. To make this possible, let's refactor the `git apply` option parsing code into a new libified apply_parse_options() function. Doing that makes it possible to remove some functions definitions from "apply.h" and make them static in "apply.c". Helped-by: Ramsay Jones <ramsay@ramsayjones.plus.com> Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-07apply: change error_routine when silentChristian Couder
To avoid printing anything when applying with `state->apply_verbosity == verbosity_silent`, let's save the existing warn and error routines before applying, and let's replace them with a routine that does nothing. Then after applying, let's restore the saved routines. Note that, as we need to restore the saved routines in all cases, we cannot return early any more in apply_all_patches(). Helped-by: Stefan Beller <sbeller@google.com> Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-07apply: don't print on stdout in verbosity_silent modeChristian Couder
When apply_verbosity is set to verbosity_silent nothing should be printed on both stderr and stdout. To avoid printing on stdout, we can just skip calling the following functions: - stat_patch_list(), - numstat_patch_list(), - summary_patch_list(). It is safe to do that because the above functions have no side effects other than printing: - stat_patch_list() only computes some local values and then call show_stats() and print_stat_summary(), those two functions only compute local values and call printing functions, - numstat_patch_list() also only computes local values and calls printing functions, - summary_patch_list() calls show_file_mode_name(), printf(), show_rename_copy(), show_mode_change() that are only printing. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-07apply: make it possible to silently applyChristian Couder
This changes 'int apply_verbosely' into 'enum apply_verbosity', and changes the possible values of the variable from a bool to a tristate. The previous 'false' state is changed into 'verbosity_normal'. The previous 'true' state is changed into 'verbosity_verbose'. The new added state is 'verbosity_silent'. It should prevent anything to be printed on both stderr and stdout. This is needed because `git am` wants to first call apply functionality silently, if it can then fall back on 3-way merge in case of error. Printing on stdout, and calls to warning() or error() are not taken care of in this patch, as that will be done in following patches. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-07apply: use error_errno() where possibleChristian Couder
To avoid possible mistakes and to uniformly show the errno related messages, let's use error_errno() where possible. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-07apply: make some parsing functions static againChristian Couder
Some parsing functions that were used in both "apply.c" and "builtin/apply.c" are now only used in the former, so they can be made static to "apply.c". Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-08-11builtin/apply: move check_apply_state() to apply.cChristian Couder
To libify `git apply` functionality we must make check_apply_state() usable outside "builtin/apply.c". Let's do that by moving it into "apply.c". Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-08-11apply: make init_apply_state() return -1 instead of exit()ingChristian Couder
To libify `git apply` functionality we have to signal errors to the caller instead of exit()ing. To do that in a compatible manner with the rest of the error handling in "builtin/apply.c", init_apply_state() should return -1 instead of calling exit(). Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>