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* Give the hunk comment its own colorBert Wesarg2009-11-28
| | | | | | | | | | | | Inspired by the coloring of quilt. Introduce a separate color and paint the hunk comment part, i.e. the name of the function, in a separate color "diff.func" (defaults to plain). Whitespace between hunk header and hunk comment is printed in plain color. Signed-off-by: Bert Wesarg <bert.wesarg@googlemail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Merge branch 'maint'Junio C Hamano2009-07-22
|\ | | | | | | | | | | | | * maint: Trailing whitespace and no newline fix diff --cc: a lost line at the beginning of the file is shown incorrectly combine-diff.c: fix performance problem when folding common deleted lines
| * diff --cc: a lost line at the beginning of the file is shown incorrectlyJunio C Hamano2009-07-22
| | | | | | | | | | | | | | | | | | | | | | | | | | When combine-diff inspected the diff from one parent to the merge result, it misinterpreted a header in the form @@ -l,k +0,0 @@. This hunk header means that K lines were removed from the beginning of the file, so the lost lines must be queued to the sline that represents the first line of the merge result, but we incremented our pointer incorrectly and ended up queuing it to the second line, which in turn made the lossage appear _after_ the first line. Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * combine-diff.c: fix performance problem when folding common deleted linesJunio C Hamano2009-07-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For a deleted line in a patch with the parent we are looking at, the append_lost() function finds the same line among a run of lines that were deleted from the same location by patches from parents we previously checked. This is so that patches with two parents @@ -1,4 +1,3 @@ @@ -1,4 +1,3 @@ one one -two -two three three -quatro -fyra +four +four can be coalesced into this sequence, reusing one line that describes the removal of "two" for both parents. @@@ -1,4 -1,4 +1,3 @@@ one --two three - quatro -frya ++four While reading the second patch (that removes "two" and then "fyra"), after finding where removal of the "two" matches, we need to find existing removal of "fyra" (if exists) in the removal list, but the match has to happen after all the existing matches (in this case "two"). The code used a naïve O(n^2) algorithm to compute this by scanning the whole removal list over and over again. This patch remembers where the next scan should be started in the existing removal list to avoid this. Noticed by Linus Torvalds. Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | Use die_errno() instead of die() when checking syscallsThomas Rast2009-06-27
|/ | | | | | | | | | | | | | | | | | | | Lots of die() calls did not actually report the kind of error, which can leave the user confused as to the real problem. Use die_errno() where we check a system/library call that sets errno on failure, or one of the following that wrap such calls: Function Passes on error from -------- -------------------- odb_pack_keep open read_ancestry fopen read_in_full xread strbuf_read xread strbuf_read_file open or strbuf_read_file strbuf_readlink readlink write_in_full xwrite Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Fix a bunch of pointer declarations (codestyle)Felipe Contreras2009-05-01
| | | | | | | Essentially; s/type* /type */ as per the coding guidelines. Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Merge branch 'maint'Junio C Hamano2009-04-29
|\ | | | | | | | | | | | | | | * maint: diff -c -p: do not die on submodules Conflicts: combine-diff.c
| * Merge branch 'maint-1.6.0' into maint-1.6.1Junio C Hamano2009-04-29
| |\ | | | | | | | | | | | | * maint-1.6.0: diff -c -p: do not die on submodules
| | * diff -c -p: do not die on submodulesJunio C Hamano2009-04-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The combine diff logic knew only about blobs (and their checked-out form in the work tree, either regular files or symlinks), and barfed when fed submodules. This "externalizes" gitlinks in the same way as the normal patch generation codepath does (i.e. "Subproject commit Xxx\n") to fix the issue. Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | Merge branch 'kb/checkout-optim'Junio C Hamano2009-03-17
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * kb/checkout-optim: Revert "lstat_cache(): print a warning if doing ping-pong between cache types" checkout bugfix: use stat.mtime instead of stat.ctime in two places Makefile: Set compiler switch for USE_NSEC Create USE_ST_TIMESPEC and turn it on for Darwin Not all systems use st_[cm]tim field for ns resolution file timestamp Record ns-timestamps if possible, but do not use it without USE_NSEC write_index(): update index_state->timestamp after flushing to disk verify_uptodate(): add ce_uptodate(ce) test make USE_NSEC work as expected fix compile error when USE_NSEC is defined check_updates(): effective removal of cache entries marked CE_REMOVE lstat_cache(): print a warning if doing ping-pong between cache types show_patch_diff(): remove a call to fstat() write_entry(): use fstat() instead of lstat() when file is open write_entry(): cleanup of some duplicated code create_directories(): remove some memcpy() and strchr() calls unlink_entry(): introduce schedule_dir_for_removal() lstat_cache(): swap func(length, string) into func(string, length) lstat_cache(): generalise longest_match_lstat_cache() lstat_cache(): small cleanup and optimisation
| * | | show_patch_diff(): remove a call to fstat()Kjetil Barvik2009-02-09
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | Currently inside show_patch_diff() we have an fstat() call after an ok lstat() call. Since before the call to fstat() we have already tested for the link case with S_ISLNK(), the fstat() can be removed. Signed-off-by: Kjetil Barvik <barvik@broadpark.no> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | Move local variables to narrower scopesBenjamin Kramer2009-03-07
|/ / | | | | | | | | | | | | These weren't used outside and can be safely moved Signed-off-by: Benjamin Kramer <benny.kra@googlemail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | combine-diff.c: use strbuf_readlink()Junio C Hamano2008-12-17
| | | | | | | | | | | | | | | | When showing combined diff using work tree contents, use strbuf_readlink() to read symbolic links. Signed-off-by: Junio C Hamano <gitster@pobox.com> Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Always initialize xpparam_t to 0Brian Downing2008-10-25
| | | | | | | | | | | | | | | | We're going to be adding some parameters to this, so we can't have any uninitialized data in it. Signed-off-by: Brian Downing <bdowning@lavos.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | Replace calls to strbuf_init(&foo, 0) with STRBUF_INIT initializerBrandon Casey2008-10-12
| | | | | | | | | | | | | | | | | | | | | | Many call sites use strbuf_init(&foo, 0) to initialize local strbuf variable "foo" which has not been accessed since its declaration. These can be replaced with a static initialization using the STRBUF_INIT macro which is just as readable, saves a function call, and takes up fewer lines. Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
* | Merge branch 'jc/diff-prefix'Junio C Hamano2008-09-18
|\ \ | | | | | | | | | | | | * jc/diff-prefix: diff: vary default prefix depending on what are compared
| * | diff: vary default prefix depending on what are comparedJunio C Hamano2008-08-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With a new configuration "diff.mnemonicprefix", "git diff" shows the differences between various combinations of preimage and postimage trees with prefixes different from the standard "a/" and "b/". Hopefully this will make the distinction stand out for some people. "git diff" compares the (i)ndex and the (w)ork tree; "git diff HEAD" compares a (c)ommit and the (w)ork tree; "git diff --cached" compares a (c)ommit and the (i)ndex; "git-diff HEAD:file1 file2" compares an (o)bject and a (w)ork tree entity; "git diff --no-index a b" compares two non-git things (1) and (2). Because these mnemonics now have meanings, they are swapped when reverse diff is in effect and this feature is enabled. Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | Merge branch 'jc/hide-cr-in-diff-from-less'Junio C Hamano2008-09-07
|\ \ \ | | |/ | |/| | | | | | | * jc/hide-cr-in-diff-from-less: diff: Help "less" hide ^M from the output
| * | diff: Help "less" hide ^M from the outputJunio C Hamano2008-08-30
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the tracked contents have CRLF line endings, colored diff output shows "^M" at the end of output lines, which is distracting, even though the pager we use by default ("less") knows to hide them. The problem is that "less" hides a carriage-return only at the end of the line, immediately before a line feed. The colored diff output does not take this into account, and emits four element sequence for each line: - force this color; - the line up to but not including the terminating line feed; - reset color - line feed. By including the carriage return at the end of the line in the second item, we are breaking the smart our pager has in order not to show "^M". This can be fixed by changing the sequence to: - force this color; - the line up to but not including the terminating end-of-line; - reset color - end-of-line. where end-of-line is either a single linefeed or a CRLF pair. When the output is not colored, "force this color" and "reset color" sequences are both empty, so we won't have this problem with or without this patch. Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | Merge branch 'maint' to sync with 1.6.0.1Junio C Hamano2008-08-24
|\ \ | |/
| * Respect core.autocrlf in combined diffAlexander Gavrilov2008-08-23
| | | | | | | | | | | | | | | | | | | | Fix git-diff to make it produce useful 3-way diffs for merge conflicts in repositories with autocrlf enabled. Otherwise it always reports that the whole file was changed, because it uses the contents from the working tree without necessary conversion. Signed-off-by: Alexander Gavrilov <angavrilov@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | xdiff-interface: hide the whole "xdiff_emit_state" business from the callerJunio C Hamano2008-08-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This further enhances xdi_diff_outf() interface so that it takes two common parameters: the callback function that processes one line at a time, and a pointer to its application specific callback data structure. xdi_diff_outf() creates its own "xdiff_emit_state" structure and stashes these two away inside it, which is used by the lowest level output function in the xdiff_outf() callchain, consume_one(), to call back to the application layer. With this restructuring, we lift the requirement that the caller supplied callback data structure embeds xdiff_emit_state structure as its first member. Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | Make xdi_diff_outf interface for running xdiff_outf diffsBrian Downing2008-08-13
|/ | | | | | | | | | | | | | | | | | | | To prepare for the need to initialize and release resources for an xdi_diff with the xdiff_outf output function, make a new function to wrap this usage. Old: ecb.outf = xdiff_outf; ecb.priv = &state; ... xdi_diff(file_p, file_o, &xpp, &xecfg, &ecb); New: xdi_diff_outf(file_p, file_o, &state.xm, &xpp, &xecfg, &ecb); Signed-off-by: Brian Downing <bdowning@lavos.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Merge branch 'jc/maint-combine-diff-pre-context'Junio C Hamano2008-06-22
|\ | | | | | | | | * jc/maint-combine-diff-pre-context: diff -c/--cc: do not include uninteresting deletion before leading context
| * diff -c/--cc: do not include uninteresting deletion before leading contextJunio C Hamano2008-06-18
| | | | | | | | | | | | | | | | | | When we include a few uninteresting lines before the interesting ones as context, we are only interested in seeing the surviving lines themselves and not the deleted lines that are before them. Mark the added leading context lines in give_context() and not show deleted lines form them. Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | Cleanup xread() loops to use read_in_full()Heikki Orsila2008-05-03
| | | | | | | | | | Signed-off-by: Heikki Orsila <heikki.orsila@iki.fi> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | Remove dead code: show_log() sep argument and diff_options.msg_sepAdam Simpkins2008-05-03
| | | | | | | | | | | | | | | | These variables were made unnecessary by commit 3969cf7db1a13a78f3b7a36d8c1084bbe0a53459. Signed-off-by: Adam Simpkins <adam@adamsimpkins.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | Die for an early EOF in a file reading loopHeikki Orsila2008-04-27
|/ | | | | | | | The resulting data is zero terminated after the read loop, but the subsequent loop that scans for '\n' will overrun the buffer. Signed-off-by: Heikki Orsila <heikki.orsila@iki.fi> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Fix rewrite_diff() name quoting.Junio C Hamano2007-12-26
| | | | | | | | | This moves the logic to quote two paths (prefix + path) in C-style introduced in the previous commit from the dump_quoted_path() in combine-diff.c to quote.c, and uses it to fix rewrite_diff() that never C-quoted the pathnames correctly. Signed-off-by: Junio C Hamano <gitster@pobox.com>
* combine-diff: Fix path quotingJunio C Hamano2007-12-26
| | | | | | | | | | | | Earlier when showing combined diff, the filenames on the ---/+++ header lines were quoted incorrectly. a/ (or b/) prefix was output literally and then the path was output, with c-quoting. This fixes the quoting logic, and while at it, adjusts the code to use the customizable prefix (a_prefix and b_prefix) introduced recently. Signed-off-by: Junio C Hamano <gitster@pobox.com>
* xdl_diff: identify call sites.Junio C Hamano2007-12-13
| | | | | | | | This inserts a new function xdi_diff() that currently does not do anything other than calling the underlying xdl_diff() to the callchain of current callers of xdl_diff() function. Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Make the diff_options bitfields be an unsigned with explicit masks.Pierre Habouzit2007-11-11
| | | | | | | reverse_diff was a bit-value in disguise, it's merged in the flags now. Signed-off-by: Pierre Habouzit <madcoder@debian.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Full rework of quote_c_style and write_name_quoted.Pierre Habouzit2007-09-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | * quote_c_style works on a strbuf instead of a wild buffer. * quote_c_style is now clever enough to not add double quotes if not needed. * write_name_quoted inherits those advantages, but also take a different set of arguments. Now instead of asking for quotes or not, you pass a "terminator". If it's \0 then we assume you don't want to escape, else C escaping is performed. In any case, the terminator is also appended to the stream. It also no longer takes the prefix/prefix_len arguments, as it's seldomly used, and makes some optimizations harder. * write_name_quotedpfx is created to work like write_name_quoted and take the prefix/prefix_len arguments. Thanks to those API changes, diff.c has somehow lost weight, thanks to the removal of functions that were wrappers around the old write_name_quoted trying to give it a semantics like the new one, but performing a lot of allocations for this goal. Now we always write directly to the stream, no intermediate allocation is performed. As a side effect of the refactor in builtin-apply.c, the length of the bar graphs in diffstats are not affected anymore by the fact that the path was clipped. Signed-off-by: Pierre Habouzit <madcoder@debian.org>
* Future-proof source for changes in xdemitconf_tJohannes Schindelin2007-07-06
| | | | | | | | | | | The instances of xdemitconf_t were initialized member by member. Instead, initialize them to all zero, so we do not have to update those places each time we introduce a new member. [jc: minimally fixed by getting rid of a new global] Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Ensure return value from xread() is always stored into an ssize_tJohan Herland2007-05-15
| | | | | | | | | This patch fixes all calls to xread() where the return value is not stored into an ssize_t. The patch should not have any effect whatsoever, other than putting better/more appropriate type names on variables. Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <junkio@cox.net>
* Support 'diff=pgm' attributeJunio C Hamano2007-04-22
| | | | | | | | | | | | | | | | | | | | | | | | | This enhances the attributes mechanism so that external programs meant for existing GIT_EXTERNAL_DIFF interface can be specifed per path. To configure such a custom diff driver, first define a custom diff driver in the configuration: [diff "my-c-diff"] command = <<your command string comes here>> Then mark the paths that you want to use this custom driver using the attribute mechanism. *.c diff=my-c-diff The intent of this separation is that the attribute mechanism is used for specifying the type of the contents, while the configuration mechanism is used to define what needs to be done to that type of the contents, which would be specific to both platform and personal taste. Signed-off-by: Junio C Hamano <junkio@cox.net>
* Cast 64 bit off_t to 32 bit size_tShawn O. Pearce2007-03-07
| | | | | | | | | | | | | | | | | | Some systems have sizeof(off_t) == 8 while sizeof(size_t) == 4. This implies that we are able to access and work on files whose maximum length is around 2^63-1 bytes, but we can only malloc or mmap somewhat less than 2^32-1 bytes of memory. On such a system an implicit conversion of off_t to size_t can cause the size_t to wrap, resulting in unexpected and exciting behavior. Right now we are working around all gcc warnings generated by the -Wshorten-64-to-32 option by passing the off_t through xsize_t(). In the future we should make xsize_t on such problematic platforms detect the wrapping and die if such a file is accessed. Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
* Tell multi-parent diff about core.symlinks.Johannes Sixt2007-03-03
| | | | | | | | | | | When core.symlinks is false, and a merge of symbolic links had conflicts, the merge result is left as a file in the working directory. A decision must be made whether the file is treated as a regular file or as a symbolic link. This patch treats the file as a symbolic link only if all merge parents were also symbolic links. Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at> Signed-off-by: Junio C Hamano <junkio@cox.net>
* convert object type handling from a string to a numberNicolas Pitre2007-02-27
| | | | | | | | | | | | | | | We currently have two parallel notation for dealing with object types in the code: a string and a numerical value. One of them is obviously redundent, and the most used one requires more stack space and a bunch of strcmp() all over the place. This is an initial step for the removal of the version using a char array found in object reading code paths. The patch is unfortunately large but there is no sane way to split it in smaller parts without breaking the system. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
* diff --cc: integer overflow given a 2GB-or-larger fileJim Meyering2007-02-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | Few of us use git to compare or even version-control 2GB files, but when we do, we'll want it to work. Reading a recent patch, I noticed two lines like this: int len = st.st_size; Instead of "int", that should be "size_t". Otherwise, in the non-symlink case, with 64-bit size_t, if the file's size is 2GB, the following xmalloc will fail: result = xmalloc(len + 1); trying to allocate 2^64 - 2^31 + 1 bytes (assuming sign-extension in the int-to-size_t promotion). And even if it didn't fail, the subsequent "result[len] = 0;" would be equivalent to an unpleasant "result[-2147483648] = 0;" The other nearby "int"-declared size variable, sz, should also be of type size_t, for the same reason. If sz ever wraps around and becomes negative, xread will corrupt memory _before_ the "result" buffer. Signed-off-by: Jim Meyering <jim@meyering.net> Signed-off-by: Junio C Hamano <junkio@cox.net>
* diff --cc: fix display of symlink conflicts during a merge.Junio C Hamano2007-02-25
| | | | | | | | "git-diff-files --cc" to show conflicts during merge did not pass the correct mode information for the working tree down, and showed bogus combined diff. Signed-off-by: Junio C Hamano <junkio@cox.net>
* combine-diff: special case --unified=0Junio C Hamano2007-02-03
| | | | | | | | | | Even when --unified=0 is given, the main loop to show the combined textual diff needs to handle a line that is unchanged but has lines that were deleted relative to a parent before it (because that is where the lost lines hang). However, such a line should not be emitted in the final output. Signed-off-by: Junio C Hamano <junkio@cox.net>
* Merge branch 'jc/combined'Junio C Hamano2006-10-26
|\ | | | | | | | | | | * jc/combined: combine-diff: honour --no-commit-id combine-diff: fix hunk_comment_line logic.
| * combine-diff: honour --no-commit-idJunio C Hamano2006-10-26
| | | | | | | | Signed-off-by: Junio C Hamano <junkio@cox.net>
| * combine-diff: fix hunk_comment_line logic.Junio C Hamano2006-10-26
| | | | | | | | | | | | | | We forgot that the last element of sline[] is a sentinel without the actual line. *BLUSH* Signed-off-by: Junio C Hamano <junkio@cox.net>
* | Merge branch 'jc/combined'Junio C Hamano2006-10-26
|\ \ | |/ | | | | | | | | | | | | | | * jc/combined: combine-diff: a few more finishing touches. Documentation: clarify refname disambiguation rules. diff-format.txt: Combined diff format documentation supplement Remove --syslog in git-daemon inetd documentation examples. Documentation: updates to "Everyday GIT"
| * combine-diff: a few more finishing touches.Junio C Hamano2006-10-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "new file" and "deleted file" were already reported in the original code, but the logic was not as transparent as it could have. This uses a few variables and more comments to clarify the flow. The rule is: (1) if a path exists in the merge result when no parent had it, we report "new" (otherwise it came from the parents, as opposed to have added by the evil merge). (2) if the path does not exist in the merge result, it is "deleted". Since we can say "new" and "deleted", there is no reason not to follow the /dev/null convention. This fixes it. Appending function name after @@@ ... @@@ is trivial, so implement it. Signed-off-by: Junio C Hamano <junkio@cox.net>
* | diff --numstatJunio C Hamano2006-10-13
|/ | | | | | [jc: with documentation from Jakub] Signed-off-by: Junio C Hamano <junkio@cox.net>
* Convert memcpy(a,b,20) to hashcpy(a,b).Shawn Pearce2006-08-23
| | | | | | | | | | | | | | | | | | | | | | | This abstracts away the size of the hash values when copying them from memory location to memory location, much as the introduction of hashcmp abstracted away hash value comparsion. A few call sites were using char* rather than unsigned char* so I added the cast rather than open hashcpy to be void*. This is a reasonable tradeoff as most call sites already use unsigned char* and the existing hashcmp is also declared to be unsigned char*. [jc: Splitted the patch to "master" part, to be followed by a patch for merge-recursive.c which is not in "master" yet. Fixed the cast in the latter hunk to combine-diff.c which was wrong in the original. Also converted ones left-over in combine-diff.c, diff-lib.c and upload-pack.c ] Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
* Do not use memcmp(sha1_1, sha1_2, 20) with hardcoded length.David Rientjes2006-08-17
| | | | | | | | | | | | | Introduces global inline: hashcmp(const unsigned char *sha1, const unsigned char *sha2) Uses memcmp for comparison and returns the result based on the length of the hash name (a future runtime decision). Acked-by: Alex Riesen <raa.lkml@gmail.com> Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Junio C Hamano <junkio@cox.net>
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