Commit graph

410 commits

Author SHA1 Message Date
Jim Meyering a624eaa782 add boolean diff.suppress-blank-empty config option
GNU diff's --suppress-blank-empty option makes it so that diff no
longer outputs trailing white space unless the input data has it.
With this option, empty context lines are now empty also in diff -u output.
Before, they would have a single trailing space.

 * diff.c (diff_suppress_blank_empty): New global.
   (git_diff_basic_config): Set it.
   (fn_out_consume): Honor it.
 * t/t4029-diff-trailing-space.sh: New file.
 * Documentation/config.txt: Document it.

Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-19 18:09:37 -07:00
Gustaf Hendeby 23b5beb28f Teach git diff about BibTeX head hunk patterns
All BibTeX entries starts with an @ followed by an entry type.  Since
there are many entry types and own can be defined, the pattern matches
legal entry type names instead of just the default types (which would
be a long list).  The pattern also matches strings and comments since
they will also be useful to position oneself in a bib-file.

Signed-off-by: Gustaf Hendeby <hendeby@isy.liu.se>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-12 15:43:55 -07:00
Junio C Hamano 04c6e9e9ca diff --check: do not unconditionally complain about trailing empty lines
Recently "git diff --check" learned to detect new trailing blank lines
just like "git apply --whitespace" does.  However this check should not
trigger unconditionally.  This patch makes it honor the whitespace
settings from core.whitespace and gitattributes.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-11 22:15:28 -07:00
Junio C Hamano 04bb50f45d Merge branch 'maint'
* maint:
  RelNotes 1.5.6.5 updates
  diff.renamelimit is a basic diff configuration
  git-cvsimport.perl: Print "UNKNOWN LINE..." on stderr, not stdout.
  Documentation: typos / spelling fixes in older RelNotes
2008-08-05 21:21:08 -07:00
Linus Torvalds 2b6ca6df2d diff.renamelimit is a basic diff configuration
The configuration was added as a core option in 3299c6f (diff: make
default rename detection limit configurable., 2005-11-15), but 9ce392f
(Move diff.renamelimit out of default configuration., 2005-11-21)
separated diff-related stuff out of the core.

Up to that point it was Ok.

When we separated the Porcelain options out of the git_diff_config in
83ad63c (diff: do not use configuration magic at the core-level,
2006-07-08), we should have been more careful.

This mistake made diff-tree plumbing and git-show Porcelain to notice
different set of renames when the user explicitly asked for rename
detection.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-05 18:27:31 -07:00
Giuseppe Bilotta 807d869453 diff: chapter and part in funcname for tex
This patch enhances the tex funcname by adding support for
chapter and part sectioning commands. It also matches
the starred version of the sectioning commands.

Signed-off-by: Giuseppe Bilotta <giuseppe.bilotta@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-02 15:40:57 -07:00
Avery Pennarun b50005b79f Teach "git diff -p" Pascal/Delphi funcname pattern
Finds classes, records, functions, procedures, and sections.  Most lines
need to start at the first column, or else there's no way to differentiate
a procedure's definition from its declaration.

Signed-off-by: Avery Pennarun <apenwarr@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-02 15:39:35 -07:00
Giuseppe Bilotta ad8c1d9260 diff: add ruby funcname pattern
Provide a regexp that catches class, module and method definitions in
Ruby scripts, since the built-in default only finds classes.

Signed-off-by: Giuseppe Bilotta <giuseppe.bilotta@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-02 15:38:14 -07:00
Kevin Ballard 6b2fbaaffc format-patch: Produce better output with --inline or --attach
This patch makes two small changes to improve the output of --inline
and --attach.

The first is to write a newline preceding the boundary. This is needed because
MIME defines the encapsulation boundary as including the preceding CRLF (or in
this case, just LF), so we should be writing one. Without this, the last
newline in the pre-diff content is consumed instead.

The second change is to always write the line termination character
(default: newline) even when using --inline or --attach. This is simply to
improve the aesthetics of the resulting message. When using --inline an email
client should render the resulting message identically to the non-inline
version. And when using --attach this adds a blank line preceding the
attachment in the email, which is visually attractive.

Signed-off-by: Kevin Ballard <kevin@sb.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-29 23:18:15 -07:00
Junio C Hamano 88bbda08d7 Merge branch 'maint'
* maint:
  Start preparing 1.5.6.4 release notes
  git fetch-pack: do not complain about "no common commits" in an empty repo
  rebase-i: keep old parents when preserving merges
  t7600-merge: Use test_expect_failure to test option parsing
  Fix buffer overflow in prepare_attr_stack
  Fix buffer overflow in git diff
  Fix buffer overflow in git-grep
  git-cvsserver: fix call to nonexistant cleanupWorkDir()
  Documentation/git-cherry-pick.txt et al.: Fix misleading -n description

Conflicts:
	RelNotes
2008-07-16 17:10:28 -07:00
Dmitry Potapov fd55a19eb1 Fix buffer overflow in git diff
If PATH_MAX on your system is smaller than a path stored, it may cause
buffer overflow and stack corruption in diff_addremove() and diff_change()
functions when running git-diff

Signed-off-by: Dmitry Potapov <dpotapov@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-16 14:03:24 -07:00
Junio C Hamano 08b51f51e6 Merge branch 'qq/maint'
* qq/maint:
  clone -q: honor "quiet" option over native transports.
  attribute documentation: keep EXAMPLE at end
  builtin-commit.c: Use 'git_config_string' to get 'commit.template'
  http.c: Use 'git_config_string' to clean up SSL config.
  diff.c: Use 'git_config_string' to get 'diff.external'
  convert.c: Use 'git_config_string' to get 'smudge' and 'clean'
  builtin-log.c: Use 'git_config_string' to get 'format.subjectprefix' and 'format.suffix'
  Documentation cvs: Clarify when a bare repository is needed
  Documentation: be precise about which date --pretty uses

Conflicts:

	Documentation/gitattributes.txt
2008-07-05 18:33:16 -07:00
Brian Hetro daec808cc6 diff.c: Use 'git_config_string' to get 'diff.external'
Signed-off-by: Brian Hetro <whee@smaertness.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-05 17:42:34 -07:00
Junio C Hamano d4b76e15ea Merge branch 'jc/checkdiff'
* jc/checkdiff:
  Fix t4017-diff-retval for white-space from wc
  Update sample pre-commit hook to use "diff --check"
  diff --check: detect leftover conflict markers
  Teach "diff --check" about new blank lines at end
  checkdiff: pass diff_options to the callback
  check_and_emit_line(): rename and refactor
  diff --check: explain why we do not care whether old side is binary
2008-07-01 16:22:35 -07:00
Olivier Marin 861d1af36a show_stats(): fix stats width calculation
Before this patch, name_width becomes negative or null for width values
less than 15 and name_width values greater than 25 (default: 50). This
leads to output random data.

This patch checks for minimal width and name_width values.

Signed-off-by: Olivier Marin <dkr@freesurf.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-28 20:55:26 -07:00
Junio C Hamano 049540435f diff --check: detect leftover conflict markers
This teaches "diff --check" to detect and complain if the change
adds lines that look like leftover conflict markers.

We should be able to remove the old Perl script used in the sample
pre-commit hook and modernize the script with this facility.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-26 22:07:54 -07:00
Junio C Hamano 877f23ccb8 Teach "diff --check" about new blank lines at end
When a patch adds new blank lines at the end, "git apply --whitespace"
warns.  This teaches "diff --check" to do the same.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-26 22:07:26 -07:00
Junio C Hamano 1ba111d1d6 checkdiff: pass diff_options to the callback
This way, we could later use more information from the diff_options.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-26 22:06:09 -07:00
Junio C Hamano 8f8841e9c8 check_and_emit_line(): rename and refactor
The function name was too bland and not explicit enough as to what it is
checking.  Split it into two, and call the one that checks if there is a
whitespace breakage "ws_check()", and call the other one that checks and
emits the line after color coding "ws_check_emit()".

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-26 18:13:50 -07:00
Junio C Hamano 5ff10dd602 diff --check: explain why we do not care whether old side is binary
All other codepaths refrain from running textual diff when either the old
or the new side is binary, but this function only checks the new side.  I
was almost going to change it to check both, but that would be a bad
change.  Explain why to prevent future mistakes.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-26 18:13:49 -07:00
Junio C Hamano c0f5c69c68 Merge branch 'maint'
* maint:
  GIT 1.5.5.5
  GIT 1.5.4.6
  git-shell: accept "git foo" form
  diff --check: do not discard error status upon seeing a good line
2008-06-26 18:12:47 -07:00
Junio C Hamano 18374e584c diff --check: do not discard error status upon seeing a good line
"git diff --check" should return non-zero when there was any whitespace
error but the code only paid attention to the error status of the last
new line in the patch.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-26 13:26:25 -07:00
Junio C Hamano 6419cd5566 Merge branch 'jk/test'
* jk/test:
  enable whitespace checking of test scripts
  avoid trailing whitespace in zero-change diffstat lines
  avoid whitespace on empty line in automatic usage message
  mask necessary whitespace policy violations in test scripts
  fix whitespace violations in test scripts
2008-06-22 14:33:02 -07:00
Junio C Hamano 5f54de5bd0 Merge branch 'maint'
* maint:
  diff.c: fix emit_line() again not to add extra line
2008-06-16 17:39:50 -07:00
Junio C Hamano 4afbcab989 diff.c: fix emit_line() again not to add extra line
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-16 17:37:21 -07:00
Junio C Hamano 9dc784a970 Merge branch 'maint'
* maint:
  diff: reset color before printing newline
2008-06-16 16:14:22 -07:00
SZEDER Gábor 06ff64ae3d diff: reset color before printing newline
It worked that way since commit 50f575fc (Tweak diff colors,
2006-06-22), but commit c1795bb0 (Unify whitespace checking, 2007-12-13)
changed it.  This patch restores the old behaviour.

Besides Linus' arguments in the log message of 50f575fc, resetting color
before printing newline is also important to keep 'git add --patch'
happy.  If the last line(s) of a file are removed, then that hunk will
end with a colored line.  However, if the newline comes before the color
reset, then the diff output will have an additional line at the end
containing only the reset sequence.  This causes trouble in
git-add--interactive.perl's parse_diff function, because @colored will
have one more element than @diff, and that last element will contain the
color reset.  The elements of these arrays will then be copied to @hunk,
but only as many as the number of elements in @diff.  As a result the
last color reset is lost and all subsequent terminal output will be
printed in color.

Signed-off-by: SZEDER Gábor <szeder@ira.uka.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-16 15:22:09 -07:00
Jeff King 4d9b53591f avoid trailing whitespace in zero-change diffstat lines
In some cases, we produce a diffstat line even though no
lines have changed (e.g., because of an exact rename). In
this case, there is no +/- "graph" after the number of
changed lines. However, we output the space separator
unconditionally, meaning that these lines contained a
trailing space character.

This isn't a huge problem, but in cleaning up the output we
are able to eliminate some trailing whitespace from a test
vector.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-14 11:39:16 -07:00
Junio C Hamano 9bd81e4249 Merge branch 'js/config-cb'
* js/config-cb:
  Provide git_config with a callback-data parameter

Conflicts:

	builtin-add.c
	builtin-cat-file.c
2008-05-25 14:25:02 -07:00
Johannes Schindelin 50fd9bd843 diff options: Introduce --ignore-submodules
The new option --ignore-submodules can now be used to ignore changes in
submodules.

Why?  Sometimes it is not interesting when a submodule changed.

For example, when reordering some commits in the superproject, a dirty
submodule is usually totally uninteresting.  So we will use this option
in git-rebase to test for a dirty working tree.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-15 16:12:40 -07:00
Junio C Hamano adf59ec127 Merge branch 'jk/renamelimit' (early part)
* 'jk/renamelimit' (early part):
  diff: make "too many files" rename warning optional
  bump rename limit defaults
  add merge.renamelimit config option
2008-05-14 12:37:28 -07:00
Johannes Schindelin ef90d6d420 Provide git_config with a callback-data parameter
git_config() only had a function parameter, but no callback data
parameter.  This assumes that all callback functions only modify
global variables.

With this patch, every callback gets a void * parameter, and it is hoped
that this will help the libification effort.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-14 12:34:44 -07:00
Jeff King 50705915ea bump rename limit defaults
The current rename limit default of 100 was arbitrarily
chosen. Testing[1] has shown that on modern hardware, a
limit of 200 adds about a second of computation time, and a
limit of 500 adds about 5 seconds of computation time.

This patch bumps the default limit to 200 for viewing diffs,
and to 500 for performing a merge. The limit for generating
git-status templates is set independently; we bump it up to
200 here, as well, to match the diff limit.

[1]: See <20080211113516.GB6344@coredump.intra.peff.net>

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-03 13:39:53 -07:00
Adam Simpkins 028656552b Remove dead code: show_log() sep argument and diff_options.msg_sep
These variables were made unnecessary by commit
3969cf7db1.

Signed-off-by: Adam Simpkins <adam@adamsimpkins.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-03 11:48:03 -07:00
Junio C Hamano c04a7155a0 diff: make --dirstat binary-file safe
Instead of counting added and removed lines (and mixing the byte size
reported for binary files in the result), summarize the extent of damage
the same way as we count similarity for rename detection.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-04-09 01:25:28 -07:00
Daniel Barkalow c0c77734bf Write diff output to a file in struct diff_options
Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-14 00:42:14 -07:00
Junio C Hamano 2b459b483c diff: make sure work tree side is shown as 0{40} when different
Ping Yin noticed that "git diff-index --raw" shows 0{40} when work tree
has submodule difference, but "git diff --raw" didn't correctly do so.

There was a mistake in the diffcore_skip_stat_unmatch() that was meant to
clean up the stat-only difference for running diff between the index and
work tree and diff between the tree and the work tree, to cause it re-read
from the submodule repository HEAD.  When ce_stat_match() says work tree
is different, we should always say 0{40} on the work tree side.

This patch fixes the issue, and adds tests.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-02 01:08:34 -08:00
Junio C Hamano 2efb3b0617 Clean up find_unique_abbrev() callers
Now find_unique_abbrev() never returns NULL, there is no need for callers
to prepare for seeing NULL and fall back to giving the full 40-hexdigits.

While we are at it, drop "..." in the "git reset" output that reports the
location of the new HEAD, between the abbreviated commit object name and
the one line commit summary.  Because we are always showing the HEAD
(which cannot be missing!), we never had a case where we show the full 40
hexdigits that is not followed by three dots, and these three dots were
stealing 3 columns from the precious horizontal screen real estate out of
80 that can better be used for the one line commit summary.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-01 23:52:13 -08:00
Junio C Hamano 3d0a936f63 Merge branch 'jm/free'
* jm/free:
  Avoid unnecessary "if-before-free" tests.

Conflicts:

	builtin-branch.c
2008-02-27 13:03:50 -08:00
Junio C Hamano 860cc3a4f9 Merge branch 'jc/diff-relative'
* jc/diff-relative:
  diff --relative: help working in a bare repository
  diff --relative: output paths as relative to the current subdirectory
2008-02-27 11:55:28 -08:00
Junio C Hamano 2db511fdbd Merge branch 'maint'
* maint:
  Documentation/git-am.txt: Pass -r in the example invocation of rm -f .dotest
  timezone_names[]: fixed the tz offset for New Zealand.
  filter-branch documentation: non-zero exit status in command abort the filter
  rev-parse: fix potential bus error with --parseopt option spec handling
  Use a single implementation and API for copy_file()
  Documentation/git-filter-branch: add a new msg-filter example
  Correct fast-export file mode strings to match fast-import standard
2008-02-26 00:14:22 -08:00
Daniel Barkalow 1468bd4783 Use a single implementation and API for copy_file()
Originally by Kristian Hï¿œgsberg; I fixed the conversion of rerere, which
had a different API.

Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-25 13:06:49 -08:00
Junio C Hamano a2de3a17fa Merge branch 'lt/dirstat'
* lt/dirstat:
  diff --dirstat: saner handling of binary and unmerged files
  Add "--dirstat" for some directory statistics
2008-02-24 18:14:53 -08:00
Junio C Hamano 2b0b551d76 diff --dirstat: saner handling of binary and unmerged files
We do not account binary nor unmerged files when --shortstat is
asked for (or the summary stat at the end of --stat).

The new option --dirstat should work the same way as it is about
summarizing the changes of multiple files by adding them up.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-24 17:39:10 -08:00
Jim Meyering 8e0f70033b Avoid unnecessary "if-before-free" tests.
This change removes all obvious useless if-before-free tests.
E.g., it replaces code like this:

        if (some_expression)
                free (some_expression);

with the now-equivalent:

        free (some_expression);

It is equivalent not just because POSIX has required free(NULL)
to work for a long time, but simply because it has worked for
so long that no reasonable porting target fails the test.
Here's some evidence from nearly 1.5 years ago:

    http://www.winehq.org/pipermail/wine-patches/2006-October/031544.html

FYI, the change below was prepared by running the following:

  git ls-files -z | xargs -0 \
  perl -0x3b -pi -e \
    's/\bif\s*\(\s*(\S+?)(?:\s*!=\s*NULL)?\s*\)\s+(free\s*\(\s*\1\s*\))/$2/s'

Note however, that it doesn't handle brace-enclosed blocks like
"if (x) { free (x); }".  But that's ok, since there were none like
that in git sources.

Beware: if you do use the above snippet, note that it can
produce syntactically invalid C code.  That happens when the
affected "if"-statement has a matching "else".
E.g., it would transform this

  if (x)
    free (x);
  else
    foo ();

into this:

  free (x);
  else
    foo ();

There were none of those here, either.

If you're interested in automating detection of the useless
tests, you might like the useless-if-before-free script in gnulib:
[it *does* detect brace-enclosed free statements, and has a --name=S
 option to make it detect free-like functions with different names]

  http://git.sv.gnu.org/gitweb/?p=gnulib.git;a=blob;f=build-aux/useless-if-before-free

Addendum:
  Remove one more (in imap-send.c), spotted by Jean-Luc Herren <jlh@gmx.ch>.

Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-22 14:14:40 -08:00
Jeff King 14a5c7c193 diff: fix java funcname pattern for solaris
The Solaris regex library doesn't like having the '$' anchor
inside capture parentheses. It rejects the match, causing
t4018 to fail.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-20 20:21:43 -08:00
Matthias Kestenholz 6b2f2d9805 Add color.ui variable which globally enables colorization if set
Signed-off-by: Matthias Kestenholz <mk@spinlock.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-18 00:00:38 -08:00
Junio C Hamano 2ac4b4b222 Merge branch 'sp/safecrlf'
* sp/safecrlf:
  safecrlf: Add mechanism to warn about irreversible crlf conversions
2008-02-16 17:59:20 -08:00
Junio C Hamano d5558581d2 Merge branch 'maint'
* maint:
  commit: discard index after setting up partial commit
  filter-branch: handle filenames that need quoting
  diff: Fix miscounting of --check output
  hg-to-git: fix parent analysis
  mailinfo: feed only one line to handle_filter() for QP input
  diff.c: add "const" qualifier to "char *cmd" member of "struct ll_diff_driver"
  Add "const" qualifier to "char *excludes_file".
  Add "const" qualifier to "char *editor_program".
  Add "const" qualifier to "char *pager_program".
  config: add 'git_config_string' to refactor string config variables.
  diff.c: remove useless check for value != NULL
  fast-import: check return value from unpack_entry()
  Validate nicknames of remote branches to prohibit confusing ones
  diff.c: replace a 'strdup' with 'xstrdup'.
  diff.c: fixup garding of config parser from value=NULL
2008-02-16 00:20:37 -08:00
Junio C Hamano 0ef617f4b6 diff: Fix miscounting of --check output
c1795bb (Unify whitespace checking) incorrectly made the
checking function return without incrementing the line numbers
when there is no whitespace problem is found on a '+' line.

This resurrects the earlier behaviour.

Noticed and reported by Jay Soffian.  The test script was stolen
from Jay's independent fix.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-15 23:06:57 -08:00