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Author SHA1 Message Date
Linus Torvalds
dfab6aaecf Make 'prepare_temp_file()' ignore st_size for symlinks
The code was already set up to not really need it, so this just massages
it a bit to remove the use entirely.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-12-17 13:36:34 -08:00
Linus Torvalds
cf219d8c68 Make 'diff_populate_filespec()' use the new 'strbuf_readlink()'
This makes all tests pass on a system where 'lstat()' has been hacked to
return bogus data in st_size for symlinks.

Of course, the test coverage isn't complete, but it's a good baseline.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-12-17 13:36:34 -08:00
Jeff King
3aa1f7ca37 diff: respect textconv in rewrite diffs
Currently we just skip rewrite diffs for binary files; this
patch makes an exception for files which will be textconv'd,
and actually performs the textconv before generating the
diff.

Conceptually, rewrite diffs should be in the exact same
format as the a non-rewrite diff, except that we refuse to
share any context. Thus it makes very little sense for "git
diff" to show a textconv'd diff, but for "git diff -B" to
show "Binary files differ".

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-12-09 22:28:55 -08:00
Jeff King
0c01857df5 diff: fix handling of binary rewrite diffs
The current emit_rewrite_diff code always writes a text patch without
checking whether the content is binary. This means that if you end up with
a rewrite diff for a binary file, you get lots of raw binary goo in your
patch.

Instead, if we have binary files, then let's just skip emit_rewrite_diff
altogether. We will already have shown the "dissimilarity index" line, so
it is really about the diff contents. If binary diffs are turned off, the
"Binary files a/file and b/file differ" message should be the same in
either case. If we do have binary patches turned on, there isn't much
point in making a less-efficient binary patch that does a total rewrite;
no human is going to read it, and since binary patches don't apply with
any fuzz anyway, the result of application should be the same.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-12-09 22:14:25 -08:00
Jeff King
e10ea8126c diff: allow turning on textconv explicitly for plumbing
Some history viewers use the diff plumbing to generate diffs
rather than going through the "git diff" porcelain.
Currently, there is no way for them to specify that they
would like to see the text-converted version of the diff.

This patch adds a "--textconv" option to allow such a
plumbing user to allow text conversion.  The user can then
tell the viewer whether or not they would like text
conversion enabled.

While it may be tempting add a configuration option rather
than requiring each plumbing user to be configured to pass
--textconv, that is somewhat dangerous. Text-converted diffs
generally cannot be applied directly, so each plumbing user
should "opt in" to generating such a diff, either by
explicit request of the user or by confirming that their
output will not be fed to patch.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-12-07 19:59:32 -08:00
Junio C Hamano
72b6157aa8 Merge branch 'jk/diff-convfilter'
* jk/diff-convfilter:
  enable textconv for diff in verbose status/commit
  wt-status: load diff ui config
  only textconv regular files
  userdiff: require explicitly allowing textconv
  refactor userdiff textconv code

Conflicts:
	t/t4030-diff-textconv.sh
2008-11-12 21:50:58 -08:00
Junio C Hamano
459d60084f Merge branch 'jk/diff-convfilter-test-fix'
* jk/diff-convfilter-test-fix:
  Avoid using non-portable `echo -n` in tests.
  add userdiff textconv tests
  document the diff driver textconv feature
  diff: add missing static declaration

Conflicts:
	Documentation/gitattributes.txt
2008-11-12 21:50:41 -08:00
Junio C Hamano
1e2bba92d2 Merge branch 'rs/blame'
* rs/blame:
  blame: use xdi_diff_hunks(), get rid of struct patch
  add xdi_diff_hunks() for callers that only need hunk lengths
  Allow alternate "low-level" emit function from xdl_diff
  Always initialize xpparam_t to 0
  blame: inline get_patch()
2008-11-08 16:05:39 -08:00
Jeff King
2675773af8 only textconv regular files
We treat symlinks as text containing the results of the
symlink, so it doesn't make much sense to text-convert them.

Similarly gitlink components just end up as the text
"Subproject commit $sha1", which we should leave intact.

Note that a typechange may be broken into two parts: the
removal of the old part and the addition of the new. In that
case, we _do_ show the textconv for any part which is the
addition or removal of a file we would ordinarily textconv,
since it is purely acting on the file contents.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-26 14:09:48 -07:00
Jeff King
c7534ef4a1 userdiff: require explicitly allowing textconv
Diffs that have been produced with textconv almost certainly
cannot be applied, so we want to be careful not to generate
them in things like format-patch.

This introduces a new diff options, ALLOW_TEXTCONV, which
controls this behavior. It is off by default, but is
explicitly turned on for the "log" family of commands, as
well as the "diff" porcelain (but not diff-* plumbing).

Because both text conversion and external diffing are
controlled by these diff options, we can get rid of the
"plumbing versus porcelain" distinction when reading the
config. This was an attempt to control the same thing, but
suffered from being too coarse-grained.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-26 14:09:48 -07:00
Jeff King
04427ac848 refactor userdiff textconv code
The original implementation of textconv put the conversion
into fill_mmfile. This was a bad idea for a number of
reasons:

 - it made the semantics of fill_mmfile unclear. In some
   cases, it was allocating data (if a text conversion
   occurred), and in some cases not (if we could use the
   data directly from the filespec). But the caller had
   no idea which had happened, and so didn't know whether
   the memory should be freed

 - similarly, the caller had no idea if a text conversion
   had occurred, and so didn't know whether the contents
   should be treated as binary or not. This meant that we
   incorrectly guessed that text-converted content was
   binary and didn't actually show it (unless the user
   overrode us with "diff.foo.binary = false", which then
   created problems in plumbing where the text conversion
   did _not_ occur)

 - not all callers of fill_mmfile want the text contents. In
   particular, we don't really want diffstat, whitespace
   checks, patch id generation, etc, to look at the
   converted contents.

This patch pulls the conversion code directly into
builtin_diff, so that we only see the conversion when
generating an actual patch. We also then know whether we are
doing a conversion, so we can check the binary-ness and free
the data from the mmfile appropriately (the previous version
leaked quite badly when text conversion was used)

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-26 14:09:48 -07:00
Jeff King
72cf484140 diff: add missing static declaration
This function isn't used outside of diff.c; the 'static' was
simply overlooked in the original writing.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-26 14:09:47 -07:00
Brian Downing
9ccd0a88ac Always initialize xpparam_t to 0
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>
2008-10-25 12:09:31 -07:00
Jeff King
9cb92c390c diff: add filter for converting binary to text
When diffing binary files, it is sometimes nice to see the
differences of a canonical text form rather than either a
binary patch or simply "binary files differ."

Until now, the only option for doing this was to define an
external diff command to perform the diff. This was a lot of
work, since the external command needed to take care of
doing the diff itself (including mode changes), and lost the
benefit of git's colorization and other options.

This patch adds a text conversion option, which converts a
file to its canonical format before performing the diff.
This is less flexible than an arbitrary external diff, but
is much less work to set up. For example:

  $ echo '*.jpg diff=exif' >>.gitattributes
  $ git config diff.exif.textconv exiftool
  $ git config diff.exif.binary false

allows one to see jpg diffs represented by the text output
of exiftool.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2008-10-18 08:02:55 -07:00
Jeff King
122aa6f9c0 diff: introduce diff.<driver>.binary
The "diff" gitattribute is somewhat overloaded right now. It
can say one of three things:

  1. this file is definitely binary, or definitely not
     (i.e., diff or !diff)
  2. this file should use an external diff engine (i.e.,
     diff=foo, diff.foo.command = custom-script)
  3. this file should use particular funcname patterns
     (i.e., diff=foo, diff.foo.(x?)funcname = some-regex)

Most of the time, there is no conflict between these uses,
since using one implies that the other is irrelevant (e.g.,
an external diff engine will decide for itself whether the
file is binary).

However, there is at least one conflicting situation: there
is no way to say "use the regular rules to determine whether
this file is binary, but if we do diff it textually, use
this funcname pattern." That is, currently setting diff=foo
indicates that the file is definitely text.

This patch introduces a "binary" config option for a diff
driver, so that one can explicitly set diff.foo.binary. We
default this value to "don't know". That is, setting a diff
attribute to "foo" and using "diff.foo.funcname" will have
no effect on the binaryness of a file. To get the current
behavior, one can set diff.foo.binary to true.

This patch also has one additional advantage: it cleans up
the interface to the userdiff code a bit. Before, calling
code had to know more about whether attributes were false,
true, or unset to determine binaryness. Now that binaryness
is a property of a driver, we can represent these situations
just by passing back a driver struct.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2008-10-18 08:02:26 -07:00
Jeff King
be58e70dba diff: unify external diff and funcname parsing code
Both sets of code assume that one specifies a diff profile
as a gitattribute via the "diff=foo" attribute. They then
pull information about that profile from the config as
diff.foo.*.

The code for each is currently completely separate from the
other, which has several disadvantages:

  - there is duplication as we maintain code to create and
    search the separate lists of external drivers and
    funcname patterns

  - it is difficult to add new profile options, since it is
    unclear where they should go

  - the code is difficult to follow, as we rely on the
    "check if this file is binary" code to find the funcname
    pattern as a side effect. This is the first step in
    refactoring the binary-checking code.

This patch factors out these diff profiles into "userdiff"
drivers. A file with "diff=foo" uses the "foo" driver, which
is specified by a single struct.

Note that one major difference between the two pieces of
code is that the funcname patterns are always loaded,
whereas external drivers are loaded only for the "git diff"
porcelain; the new code takes care to retain that situation.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2008-10-18 08:02:21 -07:00
Brandon Casey
f285a2d7ed Replace calls to strbuf_init(&foo, 0) with STRBUF_INIT initializer
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>
2008-10-12 12:36:19 -07:00
Jonathan del Strother
5d1e958e24 Teach git diff about Objective-C syntax
Add support for recognition of Objective-C class & instance methods,
C functions, and class implementation/interfaces.

Signed-off-by: Jonathan del Strother <jon.delStrother@bestbefore.tv>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2008-10-06 09:02:47 -07:00
Shawn O. Pearce
276328ffb8 Merge branch 'maint'
* maint:
  Update release notes for 1.6.0.3
  Teach rebase -i to honor pre-rebase hook
  docs: describe pre-rebase hook
  do not segfault if make_cache_entry failed
  make prefix_path() never return NULL
  fix bogus "diff --git" header from "diff --no-index"
  Fix fetch/clone --quiet when stdout is connected
  builtin-blame: Fix blame -C -C with submodules.
  bash: remove fetch, push, pull dashed form leftovers

Conflicts:
	diff.c
2008-10-06 08:56:07 -07:00
Linus Torvalds
71b989e7dd fix bogus "diff --git" header from "diff --no-index"
When "git diff --no-index" is given an absolute pathname, it
would generate a diff header with the absolute path
prepended by the prefix, like:

  diff --git a/dev/null b/foo

Not only is this nonsensical, and not only does it violate
the description of diffs given in git-diff(1), but it would
produce broken binary diffs. Unlike text diffs, the binary
diffs don't contain the filenames anywhere else, and so "git
apply" relies on this header to figure out the filename.

This patch just refuses to use an invalid name for anything
visible in the diff.

Now, this fixes the "git diff --no-index --binary a
/dev/null" kind of case (and we'll end up using "a" as the
basename), but some other insane cases are impossible to
handle. If you do

	git diff --no-index --binary a /bin/echo

you'll still get a patch like

	diff --git a/a b/bin/echo
	old mode 100644
	new mode 100755
	index ...

and "git apply" will refuse to apply it for a couple of
reasons, and the diff is simply bogus.

And that, btw, is no longer a bug, I think. It's impossible
to know whethe the user meant for the patch to be a rename
or not. And as such, refusing to apply it because you don't
know what name you should use is probably _exactly_ the
right thing to do!

Original problem reported by Imre Deak. Test script and problem
description by Jeff King.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2008-10-06 00:29:28 -07:00
Nicolas Pitre
9126f0091f fix openssl headers conflicting with custom SHA1 implementations
On ARM I have the following compilation errors:

    CC fast-import.o
In file included from cache.h:8,
                 from builtin.h:6,
                 from fast-import.c:142:
arm/sha1.h:14: error: conflicting types for 'SHA_CTX'
/usr/include/openssl/sha.h:105: error: previous declaration of 'SHA_CTX' was here
arm/sha1.h:16: error: conflicting types for 'SHA1_Init'
/usr/include/openssl/sha.h:115: error: previous declaration of 'SHA1_Init' was here
arm/sha1.h:17: error: conflicting types for 'SHA1_Update'
/usr/include/openssl/sha.h:116: error: previous declaration of 'SHA1_Update' was here
arm/sha1.h:18: error: conflicting types for 'SHA1_Final'
/usr/include/openssl/sha.h:117: error: previous declaration of 'SHA1_Final' was here
make: *** [fast-import.o] Error 1

This is because openssl header files are always included in
git-compat-util.h since commit 684ec6c63c whenever NO_OPENSSL is not
set, which somehow brings in <openssl/sha1.h> clashing with the custom
ARM version.  Compilation of git is probably broken on PPC too for the
same reason.

Turns out that the only file requiring openssl/ssl.h and openssl/err.h
is imap-send.c.  But only moving those problematic includes there
doesn't solve the issue as it also includes cache.h which brings in the
conflicting local SHA1 header file.

As suggested by Jeff King, the best solution is to rename our references
to SHA1 functions and structure to something git specific, and define those
according to the implementation used.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2008-10-02 18:06:56 -07:00
Brandon Casey
416f80a60b diff.c: remove duplicate bibtex pattern introduced by merge 92bb9785
Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2008-09-30 13:49:07 -07:00
Shawn O. Pearce
9800c0df41 Merge branch 'bc/master-diff-hunk-header-fix'
* bc/master-diff-hunk-header-fix:
  Clarify commit error message for unmerged files
  Use strchrnul() instead of strchr() plus manual workaround
  Use remove_path from dir.c instead of own implementation
  Add remove_path: a function to remove as much as possible of a path
  git-submodule: Fix "Unable to checkout" for the initial 'update'
  Clarify how the user can satisfy stash's 'dirty state' check.
  t4018-diff-funcname: test syntax of builtin xfuncname patterns
  t4018-diff-funcname: test syntax of builtin xfuncname patterns
  make "git remote" report multiple URLs
  diff hunk pattern: fix misconverted "\{" tex macro introducers
  diff: fix "multiple regexp" semantics to find hunk header comment
  diff: use extended regexp to find hunk headers
  diff: use extended regexp to find hunk headers
  diff.*.xfuncname which uses "extended" regex's for hunk header selection
  diff.c: associate a flag with each pattern and use it for compiling regex
  diff.c: return pattern entry pointer rather than just the hunk header pattern

Conflicts:
	builtin-merge-recursive.c
	t/t7201-co.sh
	xdiff-interface.h
2008-09-29 11:04:20 -07:00
Shawn O. Pearce
5a139ba483 Merge branch 'maint' into bc/master-diff-hunk-header-fix
* maint: (41 commits)
  Clarify commit error message for unmerged files
  Use strchrnul() instead of strchr() plus manual workaround
  Use remove_path from dir.c instead of own implementation
  Add remove_path: a function to remove as much as possible of a path
  git-submodule: Fix "Unable to checkout" for the initial 'update'
  Clarify how the user can satisfy stash's 'dirty state' check.
  Remove empty directories in recursive merge
  Documentation: clarify the details of overriding LESS via core.pager
  Update release notes for 1.6.0.3
  checkout: Do not show local changes when in quiet mode
  for-each-ref: Fix --format=%(subject) for log message without newlines
  git-stash.sh: don't default to refs/stash if invalid ref supplied
  maint: check return of split_cmdline to avoid bad config strings
  builtin-prune.c: prune temporary packs in <object_dir>/pack directory
  Do not perform cross-directory renames when creating packs
  Use dashless git commands in setgitperms.perl
  git-remote: do not use user input in a printf format string
  make "git remote" report multiple URLs
  Start draft release notes for 1.6.0.3
  git-repack uses --no-repack-object, not --no-repack-delta.
  ...

Conflicts:
	RelNotes
2008-09-29 10:52:34 -07:00
Shawn O. Pearce
edb7e82f72 Merge branch 'bc/maint-diff-hunk-header-fix' into maint
* bc/maint-diff-hunk-header-fix:
  t4018-diff-funcname: test syntax of builtin xfuncname patterns
  diff hunk pattern: fix misconverted "\{" tex macro introducers
  diff: use extended regexp to find hunk headers
  diff.*.xfuncname which uses "extended" regex's for hunk header selection
  diff.c: associate a flag with each pattern and use it for compiling regex
  diff.c: return pattern entry pointer rather than just the hunk header pattern

Conflicts:
	Documentation/gitattributes.txt
2008-09-29 10:23:19 -07:00
Shawn O. Pearce
de81343562 Merge branch 'ho/dirstat-by-file'
* ho/dirstat-by-file:
  diff --dirstat-by-file: count changed files, not lines
2008-09-25 08:41:42 -07:00
Brandon Casey
fdac6692a0 t4018-diff-funcname: test syntax of builtin xfuncname patterns
[jc: fixes bibtex pattern breakage exposed by this test]

Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-09-23 01:48:49 -07:00
Junio C Hamano
92bb978541 Merge branch 'bc/maint-diff-hunk-header-fix' into bc/master-diff-hunk-header-fix
* bc/maint-diff-hunk-header-fix:
  diff hunk pattern: fix misconverted "\{" tex macro introducers

Conflicts:
	diff.c
2008-09-20 18:37:47 -07:00
Junio C Hamano
96d1a8e9d4 diff hunk pattern: fix misconverted "\{" tex macro introducers
Pointed out by Brandon Casey.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-09-20 15:30:17 -07:00
Junio C Hamano
3d8dccd74a diff: fix "multiple regexp" semantics to find hunk header comment
When multiple regular expressions are concatenated with "\n", they were
traditionally AND'ed together, and only a line that matches _all_ of them
is taken as a match.  This however is unwieldy when multiple regexp
feature is used to specify alternatives.

This fixes the semantics to take the first match.  A nagative pattern, if
matches, makes the line to fail as before.  A match with a positive
pattern will be the final match, and what it captures in $1 is used as the
hunk header comment.

We could write alternatives using "|" in ERE, but the machinery can only
use captured $1 as the hunk header comment (or $0 if there is no match in
$1), so you cannot write:

    "junk ( A | B ) | garbage ( C | D )"

and expect both "junk" and "garbage" to get stripped with the existing
code.  With this fix, you can write it as:

    "junk ( A | B ) \n garbage ( C | D )"

and the way capture works would match the user expectation more
naturally.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-09-20 00:52:11 -07:00
Junio C Hamano
1883a0d3b7 diff: use extended regexp to find hunk headers
Using ERE elements such as "|" (alternation) by backquoting in BRE
is a GNU extension and should not be done in portable programs.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-09-19 23:52:49 -07:00
Junio C Hamano
cd0843198f Merge branch 'bc/maint-diff-hunk-header-fix' into bc/master-diff-hunk-header-fix
* bc/maint-diff-hunk-header-fix:
  diff: use extended regexp to find hunk headers

Conflicts:
	diff.c
2008-09-19 23:51:01 -07:00
Junio C Hamano
6a6baf9b4e diff: use extended regexp to find hunk headers
Using ERE elements such as "|" (alternation) by backquoting in BRE
is a GNU extension and should not be done in portable programs.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-09-19 23:45:04 -07:00
Junio C Hamano
dde4af4313 Merge branch 'bc/maint-diff-hunk-header-fix' into bc/master-diff-hunk-header-fix
* bc/maint-diff-hunk-header-fix:
  diff.*.xfuncname which uses "extended" regex's for hunk header selection
  diff.c: associate a flag with each pattern and use it for compiling regex
  diff.c: return pattern entry pointer rather than just the hunk header pattern
  Cosmetical command name fix
  Start conforming code to "git subcmd" style part 3
  t9700/test.pl: remove File::Temp requirement
  t9700/test.pl: avoid bareword 'STDERR' in 3-argument open()
  GIT 1.6.0.2
  Fix some manual typos.
  Use compatibility regex library also on FreeBSD
  Use compatibility regex library also on AIX
  Update draft release notes for 1.6.0.2
  Use compatibility regex library for OSX/Darwin
  git-svn: Fixes my() parameter list syntax error in pre-5.8 Perl
  Git.pm: Use File::Temp->tempfile instead of ->new
  t7501: always use test_cmp instead of diff
  Start conforming code to "git subcmd" style part 2
  diff: Help "less" hide ^M from the output
  checkout: do not check out unmerged higher stages randomly

Conflicts:
	Documentation/git.txt
	Documentation/gitattributes.txt
	Makefile
	diff.c
	t/t7201-co.sh
2008-09-18 20:32:50 -07:00
Junio C Hamano
e69a6f47c4 Merge branch 'jc/diff-prefix'
* jc/diff-prefix:
  diff: vary default prefix depending on what are compared
2008-09-18 20:30:07 -07:00
Brandon Casey
45d9414fa5 diff.*.xfuncname which uses "extended" regex's for hunk header selection
Currently, the hunk headers produced by 'diff -p' are customizable by
setting the diff.*.funcname option in the config file. The 'funcname' option
takes a basic regular expression. This functionality was designed using the
GNU regex library which, by default, allows using backslashed versions of
some extended regular expression operators, even in Basic Regular Expression
mode. For example, the following characters, when backslashed, are
interpreted according to the extended regular expression rules: ?, +, and |.
As such, the builtin funcname patterns were created using some extended
regular expression operators.

Other platforms which adhere more strictly to the POSIX spec do not
interpret the backslashed extended RE operators in Basic Regular Expression
mode. This causes the pattern matching for the builtin funcname patterns to
fail on those platforms.

Introduce a new option 'xfuncname' which uses extended regular expressions,
and advertise it _instead_ of funcname. Since most users are on GNU
platforms, the majority of funcname patterns are created and tested there.
Advertising only xfuncname should help to avoid the creation of non-portable
patterns which work with GNU regex but not elsewhere.

Additionally, the extended regular expressions may be less ugly and
complicated compared to the basic RE since many common special operators do
not need to be backslashed.

For example, the GNU Basic RE:

    ^[ 	]*\\(\\(public\\|static\\).*\\)$

becomes the following Extended RE:

    ^[ 	]*((public|static).*)$

Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-09-18 20:06:31 -07:00
Brandon Casey
a013585b20 diff.c: associate a flag with each pattern and use it for compiling regex
This is in preparation for allowing extended regular expression patterns.

Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-09-18 20:06:23 -07:00
Brandon Casey
45e7ca0f0e diff.c: return pattern entry pointer rather than just the hunk header pattern
This is in preparation for associating a flag with each pattern which will
control how the pattern is interpreted. For example, as a basic or extended
regular expression.

Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-09-18 19:58:29 -07:00
Junio C Hamano
01409bbf75 Merge branch 'jc/maint-diff-quiet' into maint
* jc/maint-diff-quiet:
  diff --quiet: make it synonym to --exit-code >/dev/null
  diff Porcelain: do not disable auto index refreshing on -C -C
2008-09-18 19:53:12 -07:00
Junio C Hamano
8e909f80b4 Merge branch 'jc/maint-diff-quiet'
* jc/maint-diff-quiet:
  diff --quiet: make it synonym to --exit-code >/dev/null
  diff Porcelain: do not disable auto index refreshing on -C -C
2008-09-16 00:48:16 -07:00
Junio C Hamano
26c10c7ad3 Merge branch 'jc/maint-hide-cr-in-diff-from-less' into maint
* jc/maint-hide-cr-in-diff-from-less:
  diff: Help "less" hide ^M from the output
2008-09-10 02:14:18 -07:00
Junio C Hamano
fdfb4cfadc Merge branch 'jc/hide-cr-in-diff-from-less'
* jc/hide-cr-in-diff-from-less:
  diff: Help "less" hide ^M from the output
2008-09-07 23:45:40 -07:00
Andreas Ericsson
af9ce1ffc6 Teach "git diff -p" to locate PHP class methods
Otherwise it will always print the class-name rather
than the name of the function inside that class.

While we're at it, reorder the gitattributes manpage to
list the built-in funcname pattern names in alphabetical
order.

Signed-off-by: Andreas Ericsson <ae@op5.se>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-09-07 15:22:24 -07:00
Junio C Hamano
df58a8274d diff --quiet: make it synonym to --exit-code >/dev/null
The point of --quiet was to return the status as early as possible without
doing any extra processing.  Well behaved scripts, when they expect to run
many diff operations inside, are supposed to run "update-index --refresh"
upfront; we do not want them to pay the price of iterating over the index
and comparing the contents to fix the stat dirtiness, and we avoided most
of the processing in diffcore_std() when --quiet is in effect.

But scripts that adhere to the good practice won't have to pay any more
price than the necessary lstat(2) that will report stat cleanliness, as
long as only -q is given without any fancier diff options.

More importantly, users who do ask for "--quiet -M --filter=D" (in order
to notice only the deletion, not paths that disappeared only because they
have been renamed away) deserve to get the result they asked for, even it
means they have to pay the extra price; the alternative is to get a cheap
early return that gives a result they did not ask for, which is much
worse.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-09-06 19:15:04 -07:00
Junio C Hamano
9d865356ab diff Porcelain: do not disable auto index refreshing on -C -C
When we enabled the automatic refreshing of the index to "diff" Porcelain,
we disabled it when --find-copies-harder was asked, but there is no good
reason to do so.  In the following command sequence, the first "diff"
shows an "empty" diff exposing stat dirtyness, while the second one does
not.

    $ >foo
    $ git add foo
    $ touch foo
    $ git diff -C -C
    $ git diff -C

This fixes the inconsistency.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-09-06 19:09:16 -07:00
Heikki Orsila
fd33777b78 diff --dirstat-by-file: count changed files, not lines
This new option --dirstat-by-file is the same as --dirstat, but it
counts "impacted files" instead of "impacted lines" (lines that are
added or removed).

Signed-off-by: Heikki Orsila <heikki.orsila@iki.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-09-05 14:04:26 -07:00
Junio C Hamano
80d12c23de Merge branch 'jc/maint-log-grep'
* jc/maint-log-grep:
  log --author/--committer: really match only with name part
  diff --cumulative is a sub-option of --dirstat
  bash completion: Hide more plumbing commands
2008-09-04 22:30:44 -07:00
Junio C Hamano
f88d225feb diff --cumulative is a sub-option of --dirstat
The option used to be implemented as if it is a totally independent one,
but "git diff --cumulative" would not mean anything without "--dirstat".

This makes --cumulative imply --dirstat.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-09-03 22:37:03 -07:00
Junio C Hamano
a5a818ee48 diff: vary default prefix depending on what are compared
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>
2008-08-30 20:53:24 -07:00
Junio C Hamano
3928097020 diff: Help "less" hide ^M from the output
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>
2008-08-30 20:34:45 -07:00
Junio C Hamano
445cac18c0 Merge branch 'maint'
* maint:
  tutorial: gentler illustration of Alice/Bob workflow using gitk
  pretty=format: respect date format options
  make git-shell paranoid about closed stdin/stdout/stderr
  Document gitk --argscmd flag.
  Fix '--dirstat' with cross-directory renaming
  for-each-ref: Allow a trailing slash in the patterns
2008-08-29 00:16:39 -07:00
Linus Torvalds
441bca0bbc Fix '--dirstat' with cross-directory renaming
The dirstat code depends on the fact that we always generate diffs with
the names sorted, since it then just does a single-pass walk-over of the
sorted list of names and how many changes there were. The sorting means
that all files are nicely grouped by directory.

That all works fine.

Except when we have rename detection, and suddenly the nicely sorted list
of pathnames isn't all that sorted at all. And now the single-pass dirstat
walk gets all confused, and you can get results like this:

  [torvalds@nehalem linux]$ git diff --dirstat=2 -M v2.6.27-rc4..v2.6.27-rc5
     3.0% arch/powerpc/configs/
     6.8% arch/arm/configs/
     2.7% arch/powerpc/configs/
     4.2% arch/arm/configs/
     5.6% arch/powerpc/configs/
     8.4% arch/arm/configs/
     5.5% arch/powerpc/configs/
    23.3% arch/arm/configs/
     8.6% arch/powerpc/configs/
     4.0% arch/
     4.4% drivers/usb/musb/
     4.0% drivers/watchdog/
     7.6% drivers/
     3.5% fs/

The trivial fix is to add a sorting pass, fixing it to:

  [torvalds@nehalem linux]$ git diff --dirstat=2 -M v2.6.27-rc4..v2.6.27-rc5
    43.0% arch/arm/configs/
    25.5% arch/powerpc/configs/
     5.3% arch/
     4.4% drivers/usb/musb/
     4.0% drivers/watchdog/
     7.6% drivers/
     3.5% fs/

Spot the difference. In case anybody wonders: it's because of a ton of
renames from {include/asm-blackfin => arch/blackfin/include/asm} that just
totally messed up the file ordering in between arch/arm and arch/powerpc.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-29 00:14:29 -07:00
Johan Herland
1a1fcf4abe Teach "git diff -p" HTML funcname patterns
Find lines with <h1>..<h6> tags.

[jc: while at it, reordered entries to sort alphabetically.]

Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-20 23:56:31 -07:00
Kirill Smelkov
7c17205b64 Teach "git diff -p" Python funcname patterns
Find classes, functions, and methods definitions.

Signed-off-by: Kirill Smelkov <kirr@mns.spb.ru>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-20 23:53:33 -07:00
Junio C Hamano
e28a8670a6 Merge branch 'maint'
* maint:
  Update draft release notes for 1.6.0.1
  Add hints to revert documentation about other ways to undo changes
  Install templates with the user and group of the installing personality
  "git-merge": allow fast-forwarding in a stat-dirty tree
  completion: find out supported merge strategies correctly
  decorate: allow const objects to be decorated
  for-each-ref: cope with tags with incomplete lines
  diff --check: do not get confused by new blank lines in the middle
  remote.c: remove useless if-before-free test
  mailinfo: avoid violating strbuf assertion
  git format-patch: avoid underrun when format.headers is empty or all NLs
2008-08-20 16:18:16 -07:00
Junio C Hamano
c35539eb10 diff --check: do not get confused by new blank lines in the middle
The code remembered that the last diff output it saw was an empty line,
and tried to reset that state whenever it sees a context line, a non-blank
new line, or a new hunk.  However, this codepath asks the underlying diff
engine to feed diff without any context, and the "just saw an empty line"
state was not reset if you added a new blank line in the last hunk of your
patch, even if it is not the last line of the file.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-20 13:28:19 -07:00
Junio C Hamano
3814c07498 Merge branch 'bd/diff-strbuf'
* bd/diff-strbuf:
  xdiff-interface: hide the whole "xdiff_emit_state" business from the caller
  Use strbuf for struct xdiff_emit_state's remainder
  Make xdi_diff_outf interface for running xdiff_outf diffs
2008-08-19 21:43:40 -07:00
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
Junio C Hamano
8a3f524bf2 xdiff-interface: hide the whole "xdiff_emit_state" business from the caller
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>
2008-08-14 00:30:26 -07:00
Brian Downing
c99db9d292 Make xdi_diff_outf interface for running xdiff_outf diffs
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>
2008-08-13 23:10:23 -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