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2006-09-24git-apply: second war on whitespace.Libravatar Junio C Hamano1-25/+97
This makes --whitespace={warn,error,strip} option to also notice the leading whitespace errors in addition to the trailing whitespace errors. Spaces that are followed by a tab in indent are detected as errors, and --whitespace=strip option fixes them. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-17apply --unidiff-zero: loosen sanity checks for --unidiff=0 patchesLibravatar Junio C Hamano1-33/+79
In "git-apply", we have a few sanity checks and heuristics that expects that the patch fed to us is a unified diff with at least one line of context. * When there is no leading context line in a hunk, the hunk must apply at the beginning of the preimage. Similarly, no trailing context means that the hunk is anchored at the end. * We learn a patch deletes the file from a hunk that has no resulting line (i.e. all lines are prefixed with '-') if it has not otherwise been known if the patch deletes the file. Similarly, no old line means the file is being created. And we declare an error condition when the file created by a creation patch already exists, and/or when a deletion patch still leaves content in the file. These sanity checks are good safety measures, but breaks down when people feed a diff generated with --unified=0. This was recently noticed first by Matthew Wilcox and Gerrit Pape. This adds a new flag, --unified-zero, to allow bypassing these checks. If you are in control of the patch generation process, you should not use --unified=0 patch and fix it up with this flag; rather you should try work with a patch with context. But if all you have to work with is a patch without context, this flag may come handy as the last resort. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-07Make apply --binary a no-op.Libravatar Junio C Hamano1-14/+5
Historically we did not allow binary patch applied without an explicit permission from the user, and this flag was the way to do so. This makes the flag a no-op by always allowing binary patch application. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-02Replace uses of strdup with xstrdup.Libravatar Shawn Pearce1-1/+1
Like xmalloc and xrealloc xstrdup dies with a useful message if the native strdup() implementation returns NULL rather than a valid pointer. I just tried to use xstrdup in new code and found it to be missing. However I expected it to be present as xmalloc and xrealloc are already commonly used throughout the code. [jc: removed the part that deals with last_XXX, which I am finding more and more dubious these days.] Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-27free(NULL) is perfectly valid.Libravatar Junio C Hamano1-4/+2
Jonas noticed some places say "if (X) free(X)" which is totally unnecessary. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-27Merge branch 'jc/apply'Libravatar Junio C Hamano1-25/+153
* jc/apply: git-apply --reject: finishing touches. apply --reject: count hunks starting from 1, not 0 git-apply --verbose git-apply --reject: send rejects to .rej files. git-apply --reject apply --reverse: tie it all together. diff.c: make binary patch reversible. builtin-apply --reverse: two bugfixes.
2006-08-27git-apply --reject: finishing touches.Libravatar Junio C Hamano1-1/+1
After a failed "git am" attempt: git apply --reject --verbose .dotest/patch applies hunks that are applicable and leaves *.rej files the rejected hunks, and it reports what it is doing. With --index, files with a rejected hunk do not get their index entries updated at all, so "git diff" will show the hunks that successfully got applied. Without --verbose to remind the user that the patch updated some other paths cleanly, it is very easy to lose track of the status of the working tree, so --reject implies --verbose. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-23use name[len] in switch directly, instead of creating a shadowed variable.Libravatar Pierre Habouzit1-3/+1
builtin-apply.c defines a local variable 'c' which is used only once and then later gets shadowed by another instance of 'c'. Signed-off-by: Pierre Habouzit <madcoder@debian.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-23avoid to use error that shadows the function name, use err instead.Libravatar Pierre Habouzit1-3/+3
builtin-apply.c and builtin-push.c uses a local variable called 'error' which shadows the error() function. Signed-off-by: Pierre Habouzit <madcoder@debian.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-22apply --reject: count hunks starting from 1, not 0Libravatar Junio C Hamano1-1/+1
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-18git-apply --verboseLibravatar Junio C Hamano1-2/+36
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-18git-apply --reject: send rejects to .rej files.Libravatar Junio C Hamano1-32/+50
... just like everybody else does, instead of sending it to the standard output, which was just silly. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-17git-apply --rejectLibravatar Junio C Hamano1-22/+94
With the new flag "--reject", hunks that do not apply are sent to the standard output, and the usable hunks are applied. The command itself exits with non-zero status when this happens, so that the user or wrapper can take notice and sort the remaining mess out. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-16apply --reverse: tie it all together.Libravatar Junio C Hamano1-1/+1
Add a few tests, usage string, and documentation. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-16builtin-apply --reverse: two bugfixes.Libravatar Junio C Hamano1-3/+7
Parsing of a binary hunk did not consume the terminating blank line. When applying in reverse, it did not use the second, reverse binary hunk. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-15remove unnecessary initializationsLibravatar David Rientjes1-14/+14
[jc: I needed to hand merge the changes to the updated codebase, so the result needs to be checked.] Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-15make inline is_null_sha1 globalLibravatar David Rientjes1-6/+1
Replace sha1 comparisons to null_sha1 with a global inline (which previously an unused static inline in builtin-apply.c) [jc: with a fix from Jonas Fonseca.] Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-15git-apply --binary: clean up and prepare for --reverseLibravatar Junio C Hamano1-65/+141
This cleans up the implementation of "git-apply --binary", and implements reverse application of binary patches (when git-diff is converted to emit reversible binary patches). Earlier, the types of encoding (either deflated literal or deflated delta) were stored in is_binary field in struct patch, which meant that we cannot store more than one fragment that differ in the encoding for a patch. This moves the information to a field in struct fragment that is otherwise unused for binary patches, and makes it possible to hang two (or more, but two is enough) hunks for a binary patch. The original "binary patch" output from git-diff is internally parsed into an "is_binary" patch with one fragment. Upcoming reversible binary patch output will have two fragments, the first one being the forward patch and the second one the reverse patch. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-14git-apply --reverse: simplify reverse option.Libravatar Junio C Hamano1-16/+12
Having is_reverse in each patch did not make sense. This will hopefully simplify the work needed to introduce reversible binary diff format. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-12Better error message when we are unable to lock the index fileLibravatar Junio C Hamano1-5/+2
Most of the callers except the one in refs.c use the function to update the index file. Among the index writers, everybody except write-tree dies if they cannot open it for writing. This gives the function an extra argument, to tell it to die when it cannot create a new file as the lockfile. The only caller that does not have to die is write-tree, because updating the index for the cache-tree part is optional and not being able to do so does not affect the correctness. I think we do not have to be so careful and make the failure into die() the same way as other callers, but that would be a different patch. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-10builtin-apply: remove unused incrementLibravatar Junio C Hamano1-3/+1
We do not use desc.alloc after assigning desc.buffer to patch->result; do not bother to increment it. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-09git-apply: applying a patch to make a symlink shorter.Libravatar Junio C Hamano1-0/+11
The internal representation of the result is counted string (i.e. char *buf and ulong size), which is fine for writing out to regular file, but throwing the buf at symlink(2) was a no-no. Reported by Willy Tarreau. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-29Call setup_git_directory() much earlierLibravatar Linus Torvalds1-1/+1
This changes the calling convention of built-in commands and passes the "prefix" (i.e. pathname of $PWD relative to the project root level) down to them. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-28git-apply -R: binary patches are irreversible for now.Libravatar Junio C Hamano1-0/+6
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-28Teach git-apply about '-R'Libravatar Johannes Schindelin1-10/+55
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-23Fix t4114 on cygwinLibravatar Johannes Schindelin1-1/+1
On cygwin, when you try to create a symlink over a directory, you do not get EEXIST, but EACCES. Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-17apply: handle type-changing patch correctly.Libravatar Junio C Hamano1-5/+24
A type-change diff is always split into a patch to delete old, immediately followed by a patch to create new. check_patch() routine noticed that the path to be created already exists in the working tree and/or in the index when looking at the creation patch and mistakenly thought it to be an error. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-16apply: split out removal and creation into different phases.Libravatar Junio C Hamano1-7/+17
This reworks write_out_result() loop so we first remove the paths that are to go away and then create them after finishing all the removal. This is necessary when a patch creates a file "foo" and removes a file "foo/bar". Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-16apply: check D/F conflicts more carefully.Libravatar Junio C Hamano1-3/+18
When creating a new file where a directory used to be (or the user had an empty directory) the code did not check the result from lstat() closely enough, and mistakenly thought the path already existed in the working tree. This does not fix the problem where you have a patch that creates a file at "foo" and removes a file at "foo/bar" (which presumably is the last file in "foo/" directory in the original). For that, we would need to restructure write_out_results() loop. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-10Avoid C99 comments, use old-style C comments instead.Libravatar Pavel Roskin1-10/+11
This doesn't make the code uglier or harder to read, yet it makes the code more portable. This also simplifies checking for other potential incompatibilities. "gcc -std=c89 -pedantic" can flag many incompatible constructs as warnings, but C99 comments will cause it to emit an error. Signed-off-by: Pavel Roskin <proski@gnu.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-10Fix more typos, primarily in the codeLibravatar Pavel Roskin1-2/+2
The only visible change is that git-blame doesn't understand "--compability" anymore, but it does accept "--compatibility" instead, which is already documented. Signed-off-by: Pavel Roskin <proski@gnu.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-08Close the index file between writing and committingLibravatar Johannes Schindelin1-1/+1
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-06-24apply: replace NO_ACCURATE_DIFF with --inaccurate-eof runtime flag.Libravatar Johannes Schindelin1-9/+16
It does not make much sense to build git whose behaviour is different depending on the brokenness of diff implementation of the platform because the brokenness of the patch that is applied with the tool depends on brokenness of the diff the person who generates the patch uses. So we do not use NO_ACCURATE_DIFF anymore, but help people to apply patches that do not record incomplete lines correctly with a runtime flag. Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-06-20Remove all void-pointer arithmetic.Libravatar Florian Forster1-3/+3
ANSI C99 doesn't allow void-pointer arithmetic. This patch fixes this in various ways. Usually the strategy that required the least changes was used. Signed-off-by: Florian Forster <octo@verplant.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-06-06Make index file locking code reusable to others.Libravatar Junio C Hamano1-5/+9
The framework to create lockfiles that are removed at exit is first used to reliably write the index file, but it is applicable to other things, so stop calling it "cache_file". This also rewords a few remaining error message that called the index file "cache file". Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-05-28Merge branch 'lt/apply'Libravatar Junio C Hamano1-0/+17
* lt/apply: apply: force matching at the beginning. Add a test-case for git-apply trying to add an ending line apply: treat EOF as proper context.
2006-05-28Merge branch 'jc/cache-tree'Libravatar Junio C Hamano1-1/+4
* jc/cache-tree: (26 commits) builtin-rm: squelch compiler warnings. git-write-tree writes garbage on sparc64 Fix crash when reading the empty tree fsck-objects: do not segfault on missing tree in cache-tree cache-tree: a bit more debugging support. read-tree: invalidate cache-tree entry when a new index entry is added. Fix test-dump-cache-tree in one-tree disappeared case. fsck-objects: mark objects reachable from cache-tree cache-tree: replace a sscanf() by two strtol() calls cache-tree.c: typefix test-dump-cache-tree: validate the cached data as well. cache_tree_update: give an option to update cache-tree only. read-tree: teach 1-way merege and plain read to prime cache-tree. read-tree: teach 1 and 2 way merges about cache-tree. update-index: when --unresolve, smudge the relevant cache-tree entries. test-dump-cache-tree: report number of subtrees. cache-tree: sort the subtree entries. Teach fsck-objects about cache-tree. index: make the index file format extensible. cache-tree: protect against "git prune". ... Conflicts: Makefile, builtin.h, git.c: resolved the same way as in next.
2006-05-24Merge branch 'master' into lt/applyLibravatar Junio C Hamano1-0/+2317
* master: (40 commits) Clean up sha1 file writing Builtin git-cat-file builtin format-patch: squelch content-type for 7-bit ASCII CMIT_FMT_EMAIL: Q-encode Subject: and display-name part of From: fields. add more informative error messages to git-mktag remove the artificial restriction tagsize < 8kb git-rebase: use canonical A..B syntax to format-patch git-format-patch: now built-in. fmt-patch: Support --attach fmt-patch: understand old <his> notation Teach fmt-patch about --keep-subject Teach fmt-patch about --numbered fmt-patch: implement -o <dir> fmt-patch: output file names to stdout Teach fmt-patch to write individual files. Use RFC2822 dates from "git fmt-patch". git-fmt-patch: thinkofix to show [PATCH] properly. rename internal format-patch wip Minor tweak on subject line in --pretty=email Tentative built-in format-patch. ...
2006-05-23Builtin git-apply.Libravatar Peter Eriksen1-0/+2300
Signed-off-by: Peter Eriksen <s022018@student.dtu.dk> Signed-off-by: Junio C Hamano <junkio@cox.net>