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2009-11-20No diff -b/-w output for all-whitespace changesGreg Bacon1-8/+27
Change git-diff's whitespace-ignoring modes to generate output only if a non-empty patch results, which git-apply rejects. Update the tests to look for the new behavior. Signed-off-by: Greg Bacon <gbacon@dbresearch.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-16Merge branch 'js/maint-diff-color-words' into maintJunio C Hamano1-8/+12
* js/maint-diff-color-words: diff --color-words: bit of clean-up diff --color-words -U0: fix the location of hunk headers t4034-diff-words: add a test for word diff without context Conflicts: diff.c
2009-11-15Merge branch 'jc/maint-blank-at-eof' into maintJunio C Hamano1-145/+262
* jc/maint-blank-at-eof: diff -B: colour whitespace errors diff.c: emit_add_line() takes only the rest of the line diff.c: split emit_line() from the first char and the rest of the line diff.c: shuffling code around diff --whitespace: fix blank lines at end core.whitespace: split trailing-space into blank-at-{eol,eof} diff --color: color blank-at-eof diff --whitespace=warn/error: fix blank-at-eof check diff --whitespace=warn/error: obey blank-at-eof diff.c: the builtin_diff() deals with only two-file comparison apply --whitespace: warn blank but not necessarily empty lines at EOF apply --whitespace=warn/error: diagnose blank at EOF apply.c: split check_whitespace() into two apply --whitespace=fix: detect new blank lines at eof correctly apply --whitespace=fix: fix handling of blank lines at the eof
2009-11-15Merge branch 'js/maint-diff-color-words'Junio C Hamano1-8/+12
* js/maint-diff-color-words: diff --color-words: bit of clean-up diff --color-words -U0: fix the location of hunk headers t4034-diff-words: add a test for word diff without context Conflicts: diff.c
2009-10-31diff --color-words: bit of clean-upJunio C Hamano1-14/+12
When we introduced the "word diff" mode, we could have done one of three things: * change fn_out_consume() to "this is called every time a line worth of diff becomes ready from the lower-level diff routine. This function knows two sets of helpers (one for line-oriented diff, another for word diff), and each set has various functions to be called at certain places (e.g. hunk header, context, ...). The function's role is to inspect the incoming line, and dispatch appropriate helpers to produce either line- or word- oriented diff output." * introduce fn_out_consume_word_diff() that is "this is called every time a line worth of diff becomes ready from the lower-level diff routine, and here is what we do to prepare word oriented diff using that line." without touching fn_out_consume() at all. * Do neither of the above, and keep fn_out_consume() to "this is called every time a line worth of diff becomes ready from the lower-level diff routine, and here is what we do to output line oriented diff using that line." but sprinkle a handful of 'are we in word-diff mode? if so do this totally different thing' at random places. This patch is to at least abstract the details of "this totally different thing" out from the main codepath, in order to improve readability. We can later refactor it by introducing fn_out_consume_word_diff(), taking the second route above, but that is a separate topic. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-30Merge branch 'js/diff-verbose-submodule'Junio C Hamano1-0/+18
* js/diff-verbose-submodule: add tests for git diff --submodule Add the --submodule option to the diff option family
2009-10-30diff --color-words -U0: fix the location of hunk headersJohannes Schindelin1-0/+6
Colored word diff without context lines firstly printed all the hunk headers among each other and then printed the diff. This was due to the code relying on getting at least one context line at the end of each hunk, where the colored words would be flushed (it is done that way to be able to ignore rewrapped lines). Noticed by Markus Heidelberg. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-19Add the --submodule option to the diff option familyJohannes Schindelin1-0/+18
When you use the option --submodule=log you can see the submodule summaries inlined in the diff, instead of not-quite-helpful SHA-1 pairs. The format imitates what "git submodule summary" shows. To do that, <path>/.git/objects/ is added to the alternate object databases (if that directory exists). This option was requested by Jens Lehmann at the GitTogether in Berlin. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-17Merge branch 'jc/maint-blank-at-eof'Junio C Hamano1-145/+262
* jc/maint-blank-at-eof: diff -B: colour whitespace errors diff.c: emit_add_line() takes only the rest of the line diff.c: split emit_line() from the first char and the rest of the line diff.c: shuffling code around diff --whitespace: fix blank lines at end core.whitespace: split trailing-space into blank-at-{eol,eof} diff --color: color blank-at-eof diff --whitespace=warn/error: fix blank-at-eof check diff --whitespace=warn/error: obey blank-at-eof diff.c: the builtin_diff() deals with only two-file comparison apply --whitespace: warn blank but not necessarily empty lines at EOF apply --whitespace=warn/error: diagnose blank at EOF apply.c: split check_whitespace() into two apply --whitespace=fix: detect new blank lines at eof correctly apply --whitespace=fix: fix handling of blank lines at the eof
2009-10-11diff.c: stylefixFelipe Contreras1-1/+1
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>
2009-09-15Merge branch 'jc/maint-1.6.0-blank-at-eof' into jc/maint-blank-at-eofJunio C Hamano1-22/+47
* jc/maint-1.6.0-blank-at-eof: diff -B: colour whitespace errors
2009-09-15Merge branch 'jc/maint-1.6.0-blank-at-eof' (early part) into ↵Junio C Hamano1-14/+35
jc/maint-blank-at-eof * 'jc/maint-1.6.0-blank-at-eof' (early part): diff.c: emit_add_line() takes only the rest of the line diff.c: split emit_line() from the first char and the rest of the line
2009-09-15Merge branch 'jc/maint-1.6.0-blank-at-eof' (early part) into ↵Junio C Hamano1-148/+148
jc/maint-blank-at-eof * 'jc/maint-1.6.0-blank-at-eof' (early part): diff.c: shuffling code around
2009-09-15Merge branch 'jc/maint-1.6.0-blank-at-eof' (early part) into ↵Junio C Hamano1-42/+113
jc/maint-blank-at-eof * 'jc/maint-1.6.0-blank-at-eof' (early part): diff --whitespace: fix blank lines at end core.whitespace: split trailing-space into blank-at-{eol,eof} diff --color: color blank-at-eof diff --whitespace=warn/error: fix blank-at-eof check diff --whitespace=warn/error: obey blank-at-eof diff.c: the builtin_diff() deals with only two-file comparison apply --whitespace: warn blank but not necessarily empty lines at EOF apply --whitespace=warn/error: diagnose blank at EOF apply.c: split check_whitespace() into two apply --whitespace=fix: detect new blank lines at eof correctly apply --whitespace=fix: fix handling of blank lines at the eof
2009-09-15diff -B: colour whitespace errorsJunio C Hamano1-26/+49
We used to send the old and new contents more or less straight out to the output with only the original "old is red, new is green" colouring. Now all the necessary support routines have been prepared, call them with a line of data at a time from the output code and have them check and color whitespace errors in exactly the same way as they are called from the low level diff callback routines. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-09-15diff.c: emit_add_line() takes only the rest of the lineJunio C Hamano1-7/+9
As the first character on the line that is fed to this function is always "+", it is pointless to send that along with the rest of the line. This change will make it easier to reuse the logic when emitting the rewrite diff, as we do not want to copy a line only to add "+"/"-"/" " immediately before its first character when we produce rewrite diff output. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-09-15diff.c: split emit_line() from the first char and the rest of the lineJunio C Hamano1-7/+26
A new helper function emit_line_0() takes the first line of diff output (typically "-", " ", or "+") separately from the remainder of the line. No other functional changes. This change will make it easier to reuse the logic when emitting the rewrite diff, as we do not want to copy a line only to add "+"/"-"/" " immediately before its first character when we produce rewrite diff output. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-09-14diff.c: shuffling code aroundJunio C Hamano1-125/+125
Move function, type, and structure definitions for fill_mmfile(), count_trailing_blank(), check_blank_at_eof(), emit_line(), new_blank_line_at_eof(), emit_add_line(), sane_truncate_fn, and emit_callback up in the file, so that they can be refactored into helper functions and reused by codepath for emitting rewrite patches. This only moves the lines around to make the next two patches easier to read. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-09-14diff --whitespace: fix blank lines at endJunio C Hamano1-21/+53
The earlier logic tried to colour any and all blank lines that were added beyond the last blank line in the original, but this was very wrong. If you added 96 blank lines, a non-blank line, and then 3 blank lines at the end, only the last 3 lines should trigger the error, not the earlier 96 blank lines. We need to also make sure that the lines are after the last non-blank line in the postimage as well before deciding to paint them. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-09-04diff --color: color blank-at-eofJunio C Hamano1-10/+27
Since the coloring logic processed the patch output one line at a time, we couldn't easily color code the new blank lines at the end of file. Reuse the adds_blank_at_eof() function to find where the runs of such blank lines start, keep track of the line number in the preimage while processing the patch output one line at a time, and paint the new blank lines that appear after that line to implement this. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-09-04diff --whitespace=warn/error: fix blank-at-eof checkJunio C Hamano1-16/+48
The "diff --check" logic used to share the same issue as the one fixed for "git apply" earlier in this series, in that a patch that adds new blank lines at end could appear as @@ -l,5 +m,7 @@$ _context$ _context$ -deleted$ +$ +$ +$ _$ _$ where _ stands for SP and $ shows a end-of-line. Instead of looking at each line in the patch in the callback, simply count the blank lines from the end in two versions, and notice the presence of new ones. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-09-04diff --whitespace=warn/error: obey blank-at-eofJunio C Hamano1-3/+7
The "diff --check" code used to conflate trailing-space whitespace error class with this, but now we have a proper separate error class, we should check it under blank-at-eof, not trailing-space. The whitespace error is not about _having_ blank lines at end, but about adding _new_ blank lines. To keep the message consistent with what is given by "git apply", call whitespace_error_string() to generate it, instead of using a hardcoded custom message. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-09-04diff.c: the builtin_diff() deals with only two-file comparisonJunio C Hamano1-23/+9
The combined diff is implemented in combine_diff() and fn_out_consume() codepath never has to deal with anything but two-file comparision. Drop nparents from the emit_callback structure and simplify the code. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-31Style fixes, add a space after if/for/while.Brian Gianforcaro1-1/+1
The majority of code in core git appears to use a single space after if/for/while. This is an attempt to bring more code to this standard. These are entirely cosmetic changes. Signed-off-by: Brian Gianforcaro <b.gianfo@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-30diff.c: fix typoes in commentsJim Meyering1-2/+2
Should be squashed when we reroll 'next' into the main commit.
2009-08-23Teach Git to respect skip-worktree bit (reading part)Nguyễn Thái Ngọc Duy1-1/+1
grep: turn on --cached for files that is marked skip-worktree ls-files: do not check for deleted file that is marked skip-worktree update-index: ignore update request if it's skip-worktree, while still allows removing diff*: skip worktree version Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-29diff: Rename QUIET internal option to QUICKJunio C Hamano1-2/+2
The option "QUIET" primarily meant "find if we have _any_ difference as quick as possible and report", which means we often do not even have to look at blobs if we know the trees are different by looking at the higher level (e.g. "diff-tree A B"). As a side effect, because there is no point showing one change that we happened to have found first, it also enables NO_OUTPUT and EXIT_WITH_STATUS options, making the end result look quiet. Rename the internal option to QUICK to reflect this better; it also makes grepping the source tree much easier, as there are other kinds of QUIET option everywhere. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-29diff: change semantics of "ignore whitespace" optionsJunio C Hamano1-3/+31
Traditionally, the --ignore-whitespace* options have merely meant to tell the diff output routine that some class of differences are not worth showing in the textual diff output, so that the end user has easier time to review the remaining (presumably more meaningful) changes. These options never affected the outcome of the command, given as the exit status when the --exit-code option was in effect (either directly or indirectly). When you have only whitespace changes, however, you might expect git diff -b --exit-code to report that there is _no_ change with zero exit status. Change the semantics of --ignore-whitespace* options to mean more than "omit showing the difference in text". The exit status, when --exit-code is in effect, is computed by checking if we found any differences at the path level, while diff frontends feed filepairs to the diffcore engine. When "ignore whitespace" options are in effect, we defer this determination until the very end of diffcore transformation. We simply do not know until the textual diff is generated, which comes very late in the pipeline. When --quiet is in effect, various diff frontends optimize by breaking out early from the loop that enumerates the filepairs, when we find the first path level difference; when --ignore-whitespace* is used the above change automatically disables this optimization. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-09Merge branch 'rs/grep-p'Junio C Hamano1-0/+1
* rs/grep-p: grep: simplify -p output grep -p: support user defined regular expressions grep: add option -p/--show-function grep: handle pre context lines on demand grep: print context hunk marks between files grep: move context hunk mark handling into show_line() userdiff: add xdiff_clear_find_func()
2009-07-06Merge branch 'tr/die_errno'Junio C Hamano1-5/+5
* tr/die_errno: Use die_errno() instead of die() when checking syscalls Convert existing die(..., strerror(errno)) to die_errno() die_errno(): double % in strerror() output just in case Introduce die_errno() that appends strerror(errno) to die()
2009-07-01userdiff: add xdiff_clear_find_func()René Scharfe1-0/+1
xdiff_set_find_func() is used to set user defined regular expressions for finding function signatures. Add xdiff_clear_find_func(), which frees the memory allocated by the former, making the API complete. Also, use the new function in diff.c (the only call site of xdiff_set_find_func()) to clean up after ourselves. Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-27Use die_errno() instead of die() when checking syscallsThomas Rast1-3/+3
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>
2009-06-27Convert existing die(..., strerror(errno)) to die_errno()Thomas Rast1-2/+2
Change calls to die(..., strerror(errno)) to use the new die_errno(). In the process, also make slight style adjustments: at least state _something_ about the function that failed (instead of just printing the pathname), and put paths in single quotes. Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-09Merge branch 'maint'Junio C Hamano1-0/+1
* maint: diff.c: plug a memory leak in an error path fetch-pack: close output channel after sideband demultiplexer terminates builtin-remote: Make "remote show" display all urls
2009-06-08diff.c: plug a memory leak in an error pathJohannes Sixt1-0/+1
Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-31diff: generate pretty filenames in prep_temp_blob()David Aguilar1-1/+11
Naturally, prep_temp_blob() did not care about filenames. As a result, GIT_EXTERNAL_DIFF and textconv generated filenames such as ".diff_XXXXXX". This modifies prep_temp_blob() to generate user-friendly filenames when creating temporary files. Diffing "name.ext" now generates "XXXXXX_name.ext". Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-25Merge branch 'ar/unlink-err' into maintJunio C Hamano1-1/+1
* ar/unlink-err: print unlink(2) errno in copy_or_link_directory replace direct calls to unlink(2) with unlink_or_warn Introduce an unlink(2) wrapper which gives warning if unlink failed
2009-05-25convert bare readlink to strbuf_readlinkJeff King1-7/+4
This particular readlink call never NUL-terminated its result, making it a potential source of bugs (though there is no bug now, as it currently always respects the length field). Let's just switch it to strbuf_readlink which is shorter and less error-prone. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-18Merge branch 'ar/unlink-err'Junio C Hamano1-1/+1
* ar/unlink-err: print unlink(2) errno in copy_or_link_directory replace direct calls to unlink(2) with unlink_or_warn Introduce an unlink(2) wrapper which gives warning if unlink failed
2009-05-18Merge branch 'mh/diff-stat-color'Junio C Hamano1-8/+7
* mh/diff-stat-color: diff: do not color --stat output like patch context
2009-05-03Merge branch 'jc/maint-1.6.0-keep-pack' into maint-1.6.1Junio C Hamano1-1/+1
* jc/maint-1.6.0-keep-pack: pack-objects: don't loosen objects available in alternate or kept packs t7700: demonstrate repack flaw which may loosen objects unnecessarily Remove --kept-pack-only option and associated infrastructure pack-objects: only repack or loosen objects residing in "local" packs git-repack.sh: don't use --kept-pack-only option to pack-objects t7700-repack: add two new tests demonstrating repacking flaws is_kept_pack(): final clean-up Simplify is_kept_pack() Consolidate ignore_packed logic more has_sha1_kept_pack(): take "struct rev_info" has_sha1_pack(): refactor "pretend these packs do not exist" interface git-repack: resist stray environment variable
2009-05-03Merge branch 'jc/maint-1.6.0-diff-borrow-carefully' into maint-1.6.1Junio C Hamano1-1/+9
* jc/maint-1.6.0-diff-borrow-carefully: diff --cached: do not borrow from a work tree when a path is marked as assume-unchanged
2009-05-01Fix a bunch of pointer declarations (codestyle)Felipe Contreras1-2/+2
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>
2009-04-29replace direct calls to unlink(2) with unlink_or_warnAlex Riesen1-1/+1
This helps to notice when something's going wrong, especially on systems which lock open files. I used the following criteria when selecting the code for replacement: - it was already printing a warning for the unlink failures - it is in a function which already printing something or is called from such a function - it is in a static function, returning void and the function is only called from a builtin main function (cmd_) - it is in a function which handles emergency exit (signal handlers) - it is in a function which is obvously cleaning up the lockfiles Signed-off-by: Alex Riesen <raa.lkml@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-26diff: do not color --stat output like patch contextMarkus Heidelberg1-8/+7
The diffstat used the color.diff.plain slot (context text) for coloring filenames and the whole summary line. This didn't look nice and the affected text isn't patch context at all. Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-11Allow users to un-configure rename detectionLinus Torvalds1-7/+10
I told people on the kernel mailing list to please use "-M" when sending me rename patches, so that I can see what they do while reading email rather than having to apply the patch and then look at the end result. I also told them that if they want to make it the default, they can just add [diff] renames to their ~/.gitconfig file. And while I was thinking about that, I wanted to also check whether you can then mark individual projects to _not_ have that default in the per-repository .git/config file. And you can't. Currently you cannot have a global "enable renames by default" and then a local ".. but not for _this_ project". Why? Because if somebody writes [diff] renames = no we simply ignore it, rather than resetting "diff_detect_rename_default" back to zero. Fixed thusly. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-08Merge branch 'jc/maint-1.6.0-diff-borrow-carefully' into maintJunio C Hamano1-1/+9
* jc/maint-1.6.0-diff-borrow-carefully: diff --cached: do not borrow from a work tree when a path is marked as assume-unchanged
2009-04-08Merge branch 'jc/maint-1.6.0-keep-pack' into maintJunio C Hamano1-1/+1
* jc/maint-1.6.0-keep-pack: pack-objects: don't loosen objects available in alternate or kept packs t7700: demonstrate repack flaw which may loosen objects unnecessarily Remove --kept-pack-only option and associated infrastructure pack-objects: only repack or loosen objects residing in "local" packs git-repack.sh: don't use --kept-pack-only option to pack-objects t7700-repack: add two new tests demonstrating repacking flaws is_kept_pack(): final clean-up Simplify is_kept_pack() Consolidate ignore_packed logic more has_sha1_kept_pack(): take "struct rev_info" has_sha1_pack(): refactor "pretend these packs do not exist" interface git-repack: resist stray environment variable Conflicts: t/t7700-repack.sh
2009-03-28Merge branch 'jc/maint-1.6.0-diff-borrow-carefully'Junio C Hamano1-1/+9
* jc/maint-1.6.0-diff-borrow-carefully: diff --cached: do not borrow from a work tree when a path is marked as assume-unchanged
2009-03-26Merge branch 'js/maint-diff-temp-smudge'Junio C Hamano1-3/+10
* js/maint-diff-temp-smudge: Smudge the files fed to external diff and textconv