Commit Graph

409 Commits

Author SHA1 Message Date
Pierre Habouzit
f1696ee398 Strbuf API extensions and fixes.
* Add strbuf_rtrim to remove trailing spaces.
  * Add strbuf_insert to insert data at a given position.
  * Off-by one fix in strbuf_addf: strbuf_avail() does not counts the final
    \0 so the overflow test for snprintf is the strict comparison. This is
    not critical as the growth mechanism chosen will always allocate _more_
    memory than asked, so the second test will not fail. It's some kind of
    miracle though.
  * Add size extension hints for strbuf_init and strbuf_read. If 0, default
    applies, else:
      + initial buffer has the given size for strbuf_init.
      + first growth checks it has at least this size rather than the
        default 8192.

Signed-off-by: Pierre Habouzit <madcoder@debian.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-09-10 12:48:24 -07:00
Junio C Hamano
ddb95de33e Merge branch 'master' into ph/strbuf
* master:
  archive - leakfix for format_subst()
  Make --no-thin the default in git-push to save server resources
  fix doc for --compression argument to pack-objects
  git-tag -s must fail if gpg cannot sign the tag.
  git-svn: understand grafts when doing dcommit
  git-diff: don't squelch the new SHA1 in submodule diffs
  Define NO_MEMMEM on Darwin as it lacks the function
  git-svn: fix "Malformed network data" with svn:// servers
  (cvs|svn)import: Ask git-tag to overwrite old tags.
  git-rebase: fix -C option
  git-rebase: support --whitespace=<option>
  Documentation / grammer nit
  archive: rename attribute specfile to export-subst
  archive: specfile syntax change: "$Format:%PLCHLDR$" instead of just "%PLCHLDR" (take 2)
  add memmem()
  Remove unused function convert_sha1_file()
  archive: specfile support (--pretty=format: in archive files)
  Export format_commit_message()
2007-09-10 11:32:58 -07:00
Sven Verdoolaege
5701115aa7 git-diff: don't squelch the new SHA1 in submodule diffs
The code to squelch empty diffs introduced by commit
fb13227e08 would inadvertently
populate filespec "two" of a submodule change using the uninitialized
(null) SHA1, thereby replacing the submodule SHA1 by 0{40} in the output.

This change teaches diffcore_skip_stat_unmatch to handle
submodule changes correctly.

Signed-off-by: Sven Verdoolaege <skimo@kotnet.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-09-09 02:28:57 -07:00
Pierre Habouzit
af6eb82262 Use strbuf API in apply, blame, commit-tree and diff
Signed-off-by: Pierre Habouzit <madcoder@debian.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-09-06 23:57:44 -07:00
Junio C Hamano
aecbf914c4 git-diff: resurrect the traditional empty "diff --git" behaviour
The warning message to suggest "Consider running git-status" from
"git-diff" that we experimented with during the 1.5.3 cycle turns
out to be a bad idea.  It robbed cache-dirty information from people
who valued it, while still asking users to run "update-index --refresh".
It was hoped that the new behaviour would at least have some educational
value, but not showing the cache-dirty paths like before meant that the
user would not even know easily which paths were cache-dirty, and it
made the need to refresh the index look like even more unnecessary chore.

This commit reinstates the traditional behaviour, but with a twist.

By default, the empty "diff --git" output is totally squelched out
from "git diff" output.  At the end of the command, it automatically
runs "update-index --refresh" as needed, without even bothering the
user.  In other words, people who do not care about the cache-dirtyness
do not even have to see the warning.

The traditional behaviour to see the stat-dirty output and to bypassing
the overhead of content comparison can be specified by setting the
configuration variable diff.autorefreshindex to false.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-31 23:30:14 -07:00
Linus Torvalds
2f82f760e1 Take binary diffs into account for "git rebase"
We used to not generate a patch ID for binary diffs, but that means that
some commits may be skipped as being identical to already-applied diffs
when doing a rebase.

So just delete the code that skips the binary diff. At the very least,
we'd want the filenames to be part of the patch ID, but we might also want
to generate some hash for the binary diff itself too.

This fixes an issue noticed by Torgil Svensson.

Tested-by: Torgil Svensson <torgil.svensson@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-19 11:45:31 -07:00
René Scharfe
6d2d9e8666 diff: squelch empty diffs even more
When we compare two non-tracked files, or explicitly
specify --no-index, the suggestion to run git-status
is not helpful.

The patch adds a new diff_options bitfield member, no_index, that
is used instead of the special value of -2 of the rev_info field
max_count to indicate that the index is not to be used.  This makes
it possible to pass that flag down to diffcore_skip_stat_unmatch(),
which only has one diff_options parameter.

This could even become a cleanup if we removed all assignments of
max_count to a value of -2 (viz. replacement of a magic value with
a self-documenting field name) but I didn't dare to do that so late
in the rc game..

The no_index bit, if set, then tells diffcore_skip_stat_unmatch()
to not account for any skipped stat-mismatches, which avoids the
suggestion to run git-status.

Signed-off-by: Rene Scharfe <rene.scharfe@lsfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-14 22:34:58 -07:00
Junio C Hamano
fb13227e08 git-diff: squelch "empty" diffs
After starting to edit a working tree file but later when your edit ends
up identical to the original (this can also happen when you ran a
wholesale regexp replace with something like "perl -i" that does not
actually modify many of the paths), "git diff" between the index and the
working tree outputs many "empty" diffs that show "diff --git" headers
and nothing else, because these paths are stat-dirty.  While it was a
way to warn the user that the earlier action of the user made the index
ineffective as an optimization mechanism, it was felt too loud for the
purpose of warning even to experienced users, and also resulted in
confusing people new to git.

This replaces the "empty" diffs with a single warning message at the
end.  Having many such paths hurts performance, and you can run
"git-update-index --refresh" to update the lstat(2) information recorded
in the index in such a case.  "git-status" does so as a side effect, and
that is more familiar to the end-user, so we recommend it to them.

The change affects only "git diff" that outputs patch text, because that
is where the annoyance of too many "empty" diff is most strongly felt,
and because the warning message can be safely ignored by downstream
tools without getting mistaken as part of the patch.  For the low-level
"git diff-files" and "git diff-index", the traditional behaviour is
retained.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-14 01:55:00 -07:00
Junio C Hamano
e7a7be8831 git_mkstemp(): be careful not to overflow the path buffer.
If user's TMPDIR is insanely long, return negative after
setting errno to ENAMETOOLONG, pretending that the underlying
mkstemp() choked on a temporary file path that is too long.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-07-25 21:34:53 -07:00
Junio C Hamano
d3a93dc967 diff.c: make built-in hunk header pattern a separate table
This would hopefully make it easier to maintain.  Initially we
would have "java" and "tex" defined, as they are the only ones
we already have.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-07-08 00:25:59 -07:00
Junio C Hamano
2c3fa66f35 diff: honor binariness specified in attributes
The code shuffling mistakenly lost binariness specified with the
attribute mecahnism and made it always guess from the data.

Noticed by Johannes, with two test cases to t4020.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-07-07 12:25:11 -07:00
Junio C Hamano
e0e324a4dc Fix configuration syntax to specify customized hunk header patterns.
This updates the hunk header customization syntax.  The special
case 'funcname' attribute is gone.

You assign the name of the type of contents to path's "diff"
attribute as a string value in .gitattributes like this:

	*.java diff=java
	*.perl diff=perl
	*.doc diff=doc

If you supply "diff.<name>.funcname" variable via the
configuration mechanism (e.g. in $HOME/.gitconfig), the value is
used as the regexp set to find the line to use for the hunk
header (the variable is called "funcname" because such a line
typically is the one that has the name of the function in
programming language source text).

If there is no such configuration, built-in default is used, if
any.  Currently there are two default patterns: default and java.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-07-07 01:49:58 -07:00
Junio C Hamano
f258475a6e Per-path attribute based hunk header selection.
This makes"diff -p" hunk headers customizable via gitattributes mechanism.
It is based on Johannes's earlier patch that allowed to define a single
regexp to be used for everything.

The mechanism to arrive at the regexp that is used to define hunk header
is the same as other use of gitattributes.  You assign an attribute, funcname
(because "diff -p" typically uses the name of the function the patch is about
as the hunk header), a simple string value.  This can be one of the names of
built-in pattern (currently, "java" is defined) or a custom pattern name, to
be looked up from the configuration file.

  (in .gitattributes)
  *.java   funcname=java
  *.perl   funcname=perl

  (in .git/config)
  [funcname]
    java = ... # ugly and complicated regexp to override the built-in one.
    perl = ... # another ugly and complicated regexp to define a new one.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-07-06 01:20:47 -07:00
Johannes Schindelin
30b250104d Future-proof source for changes in xdemitconf_t
The instances of xdemitconf_t were initialized member by member.
Instead, initialize them to all zero, so we do not have
to update those places each time we introduce a new member.

[jc: minimally fixed by getting rid of a new global]

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-07-06 00:22:12 -07:00
Junio C Hamano
29a3eefde1 Introduce diff_filespec_is_binary()
This replaces an explicit initialization of filespec->is_binary
field used for rename/break followed by direct access to that
field with a wrapper function that lazily iniaitlizes and
accesses the field.  We would add more attribute accesses for
the use of diff routines, and it would be better to make this
abstraction earlier.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-07-06 00:21:41 -07:00
Junio C Hamano
e2b1accc59 Merge branch 'maint'
* maint:
  Document -<n> for git-format-patch
  glossary: add 'reflog'
  diff --no-index: fix --name-status with added files
  Don't smash stack when $GIT_ALTERNATE_OBJECT_DIRECTORIES is too long
2007-07-03 22:56:59 -07:00
Johannes Schindelin
72909befaa Add diff-option --ext-diff
To prevent funky games with external diff engines, git-log and
friends prevent external diff engines from being called. That makes
sense in the context of git-format-patch or git-rebase.

However, for "git log -p" it is not so nice to get the message
that binary files cannot be compared, while "git diff" has no
problems with them, if you provided an external diff driver.

With this patch, "git log --ext-diff -p" will do what you expect,
and the option "--no-ext-diff" can be used to override that
setting.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-07-03 19:05:55 -07:00
Johannes Schindelin
3cb567386d diff --no-index: fix --name-status with added files
Without this patch, an added file would be reported as /dev/null.

Noticed by David Kastrup.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-07-03 13:44:30 -07:00
Junio C Hamano
e1bc8dc66d Merge branch 'jc/diffcore'
* jc/diffcore:
  diffcore-delta.c: Ignore CR in CRLF for text files
  diffcore-delta.c: update the comment on the algorithm.
  diffcore_filespec: add is_binary
  diffcore_count_changes: pass diffcore_filespec
2007-07-02 01:45:12 -07:00
Junio C Hamano
706098af6b diffcore_filespec: add is_binary
diffcore-break and diffcore-rename would want to behave slightly
differently depending on the binary-ness of the data, so add one
bit to the filespec, as the structure is now passed down to
diffcore_count_changes() function.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-06-30 20:51:31 -07:00
René Scharfe
125b763052 diff: round down similarity index
Rounding down the printed (dis)similarity index allows us to use
"100%" as a special value that indicates complete rewrites and
fully equal file contents, respectively.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-06-25 01:51:21 -07:00
Linus Torvalds
750f7b668f Finally implement "git log --follow"
Ok, I've really held off doing this too damn long, because I'm lazy, and I
was always hoping that somebody else would do it.

But no, people keep asking for it, but nobody actually did anything, so I
decided I might as well bite the bullet, and instead of telling people
they could add a "--follow" flag to "git log" to do what they want to do,
I decided that it looks like I just have to do it for them..

The code wasn't actually that complicated, in that the diffstat for this
patch literally says "70 insertions(+), 1 deletions(-)", but I will have
to admit that in order to get to this fairly simple patch, you did have to
know and understand the internal git diff generation machinery pretty
well, and had to really be able to follow how commit generation interacts
with generating patches and generating the log.

So I suspect that while I was right that it wasn't that hard, I might have
been expecting too much of random people - this patch does seem to be
firmly in the core "Linus or Junio" territory.

To make a long story short: I'm sorry for it taking so long until I just
did it.

I'm not going to guarantee that this works for everybody, but you really
can just look at the patch, and after the appropriate appreciative noises
("Ooh, aah") over how clever I am, you can then just notice that the code
itself isn't really that complicated.

All the real new code is in the new "try_to_follow_renames()" function. It
really isn't rocket science: we notice that the pathname we were looking
at went away, so we start a full tree diff and try to see if we can
instead make that pathname be a rename or a copy from some other previous
pathname. And if we can, we just continue, except we show *that*
particular diff, and ever after we use the _previous_ pathname.

One thing to look out for: the "rename detection" is considered to be a
singular event in the _linear_ "git log" output! That's what people want
to do, but I just wanted to point out that this patch is *not* carrying
around a "commit,pathname" kind of pair and it's *not* going to be able to
notice the file coming from multiple *different* files in earlier history.

IOW, if you use "git log --follow", then you get the stupid CVS/SVN kind
of "files have single identities" kind of semantics, and git log will just
pick the identity based on the normal move/copy heuristics _as_if_ the
history could be linearized.

Put another way: I think the model is broken, but given the broken model,
I think this patch does just about as well as you can do. If you have
merges with the same "file" having different filenames over the two
branches, git will just end up picking _one_ of the pathnames at the point
where the newer one goes away. It never looks at multiple pathnames in
parallel.

And if you understood all that, you probably didn't need it explained, and
if you didn't understand the above blathering, it doesn't really mtter to
you. What matters to you is that you can now do

	git log -p --follow builtin-rev-list.c

and it will find the point where the old "rev-list.c" got renamed to
"builtin-rev-list.c" and show it as such.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-06-22 23:37:11 -07:00
Johannes Schindelin
634cd48a8a Move buffer_is_binary() to xdiff-interface.h
We already have two instances where we want to determine if a buffer
contains binary data as opposed to text.

[jc: cherry-picked 6bfce93e from 'master']

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-06-15 23:27:23 -07:00
Johannes Schindelin
ca6c097089 Teach diff to imply --find-copies-harder upon -C -C
Earlier, a second "-C" on the command line had no effect.
But "--find-copies-harder" is so long to type, let's make doubled -C
enable that option.  It is in line with how "git blame" handles such
doubled options to mean "work harder".

Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-06-12 01:00:38 -07:00
Junio C Hamano
16befb8b7f Even more missing static
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-06-08 02:54:57 -07:00
Junio C Hamano
a6080a0a44 War on whitespace
This uses "git-apply --whitespace=strip" to fix whitespace errors that have
crept in to our source files over time.  There are a few files that need
to have trailing whitespaces (most notably, test vectors).  The results
still passes the test, and build result in Documentation/ area is unchanged.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-06-07 00:04:01 -07:00
Johannes Schindelin
6bfce93e04 Move buffer_is_binary() to xdiff-interface.h
We already have two instances where we want to determine if a buffer
contains binary data as opposed to text.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-06-04 23:07:00 -07:00
Junio C Hamano
c56ed464b0 Merge branch 'maint'
* maint:
  Fix git-svn to handle svn not reporting the md5sum of a file, and test.
  Fix mishandling of $Id$ expanded in the repository copy in convert.c
  More echo "$user_message" fixes.
  Add tests for the last two fixes.
  git-commit: use printf '%s\n' instead of echo on user-supplied strings
  git-am: use printf instead of echo on user-supplied strings
  Documentation: Add definition of "evil merge" to GIT Glossary
  Replace the last 'dircache's by 'index'
  Documentation: Clean up links in GIT Glossary
2007-05-26 18:53:22 -07:00
Junio C Hamano
d1c7c27ea3 Merge branch 'maint-1.5.1' into maint
* maint-1.5.1:
  Fix git-svn to handle svn not reporting the md5sum of a file, and test.
  More echo "$user_message" fixes.
  Add tests for the last two fixes.
  git-commit: use printf '%s\n' instead of echo on user-supplied strings
  git-am: use printf instead of echo on user-supplied strings
  Documentation: Add definition of "evil merge" to GIT Glossary
  Replace the last 'dircache's by 'index'
  Documentation: Clean up links in GIT Glossary
2007-05-26 01:30:40 -07:00
Jakub Narebski
5adf317b31 Replace the last 'dircache's by 'index'
Signed-off-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-05-25 20:54:23 -07:00
Martin Waitz
302b9282c9 rename dirlink to gitlink.
Unify naming of plumbing dirlink/gitlink concept:

git ls-files -z '*.[ch]' |
xargs -0 perl -pi -e 's/dirlink/gitlink/g;' -e 's/DIRLNK/GITLINK/g;'

Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-05-21 23:34:54 -07:00
Junio C Hamano
7df6ddf51e Merge branch 'maint-1.5.1' into maint
* maint-1.5.1:
  annotate: make it work from subdirectories.
  git-config: Correct asciidoc documentation for --int/--bool
  t1300: Add tests for git-config --bool --get
  unpack-trees.c: verify_uptodate: remove dead code
  Use PATH_MAX instead of TEMPFILE_PATH_LEN
  branch: fix segfault when resolving an invalid HEAD
2007-05-20 19:57:00 -07:00
Fernando J. Pereda
1472966c04 Use PATH_MAX instead of TEMPFILE_PATH_LEN
Signed-off-by: Fernando J. Pereda <ferdy@gentoo.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-05-20 14:40:34 -07:00
Johan Herland
8a912bcb25 Ensure return value from xread() is always stored into an ssize_t
This patch fixes all calls to xread() where the return value is not
stored into an ssize_t. The patch should not have any effect whatsoever,
other than putting better/more appropriate type names on variables.

Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-05-15 21:16:03 -07:00
Junio C Hamano
6e0b8ed6d3 diff.c: do not use a separate "size cache".
diff_filespec has a slot to record the size of the data already,
so make use of it instead of a separate size cache.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-05-07 15:54:32 -07:00
Junio C Hamano
fc3abdf5cb diff: release blobs after generating textual diff.
This reduces the memory pressure when dealing with many paths.

An unscientific test of running "diff-tree --stat --summary -M"
between v2.6.19 and v2.6.20-rc1 in the linux kernel repository
indicates that the number of minor faults are reduced by 2/3.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-05-07 15:54:32 -07:00
Junio C Hamano
9aae177a4a Merge branch 'maint'
* maint:
  gitweb: use decode_utf8 directly
  posix compatibility for t4200
  Document 'opendiff' value in config.txt and git-mergetool.txt
  Allow PERL_PATH="/usr/bin/env perl"
  Make xstrndup common
  diff.c: fix "size cache" handling.
  http-fetch: Disable use of curl multi support for libcurl < 7.16.
2007-05-03 23:26:54 -07:00
Junio C Hamano
cdda666201 diff.c: fix "size cache" handling.
We broke the size-cache handling when we changed the function
signature of sha1_object_info() in 21666f1a.  We obviously
wanted to cache the size we obtained when sha1_object_info()
succeeded, not when it failed.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-05-03 22:12:40 -07:00
Junio C Hamano
f1af60bdba Support 'diff=pgm' attribute
This enhances the attributes mechanism so that external programs
meant for existing GIT_EXTERNAL_DIFF interface can be specifed
per path.

To configure such a custom diff driver, first define a custom
diff driver in the configuration:

	[diff "my-c-diff"]
		command = <<your command string comes here>>

Then mark the paths that you want to use this custom driver
using the attribute mechanism.

	*.c	diff=my-c-diff

The intent of this separation is that the attribute mechanism is
used for specifying the type of the contents, while the
configuration mechanism is used to define what needs to be done
to that type of the contents, which would be specific to both
platform and personal taste.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-04-22 22:16:14 -07:00
Junio C Hamano
a2d7c6c620 Merge branch 'jc/attr'
* 'jc/attr': (28 commits)
  lockfile: record the primary process.
  convert.c: restructure the attribute checking part.
  Fix bogus linked-list management for user defined merge drivers.
  Simplify calling of CR/LF conversion routines
  Document gitattributes(5)
  Update 'crlf' attribute semantics.
  Documentation: support manual section (5) - file formats.
  Simplify code to find recursive merge driver.
  Counto-fix in merge-recursive
  Fix funny types used in attribute value representation
  Allow low-level driver to specify different behaviour during internal merge.
  Custom low-level merge driver: change the configuration scheme.
  Allow the default low-level merge driver to be configured.
  Custom low-level merge driver support.
  Add a demonstration/test of customized merge.
  Allow specifying specialized merge-backend per path.
  merge-recursive: separate out xdl_merge() interface.
  Allow more than true/false to attributes.
  Document git-check-attr
  Change attribute negation marker from '!' to '-'.
  ...
2007-04-21 17:38:00 -07:00
Alex Riesen
ac78e54804 Simplify calling of CR/LF conversion routines
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-04-20 23:24:34 -07:00
Junio C Hamano
a5e92abde6 Fix funny types used in attribute value representation
It was bothering me a lot that I abused small integer values
casted to (void *) to represent non string values in
gitattributes.  This corrects it by making the type of attribute
values (const char *), and using the address of a few statically
allocated character buffer to denote true/false.  Unset attributes
are represented as having NULLs as their values.

Added in-header documentation to explain how git_checkattr()
routine should be called.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-04-18 16:17:13 -07:00
Junio C Hamano
515106fa13 Allow more than true/false to attributes.
This allows you to define three values (and possibly more) to
each attribute: true, false, and unset.

Typically the handlers that notice and act on attribute values
treat "unset" attribute to mean "do your default thing"
(e.g. crlf that is unset would trigger "guess from contents"),
so being able to override a setting to an unset state is
actually useful.

 - If you want to set the attribute value to true, have an entry
   in .gitattributes file that mentions the attribute name; e.g.

	*.o	binary

 - If you want to set the attribute value explicitly to false,
   use '-'; e.g.

	*.a	-diff

 - If you want to make the attribute value _unset_, perhaps to
   override an earlier entry, use '!'; e.g.

	*.a	-diff
	c.i.a	!diff

This also allows string values to attributes, with the natural
syntax:

	attrname=attrvalue

but you cannot use it, as nobody takes notice and acts on
it yet.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-04-17 01:04:59 -07:00
Junio C Hamano
40250af411 Fix 'diff' attribute semantics.
This is in the same spirit as the previous one.  Earlier 'diff'
meant 'do the built-in binary heuristics and disable patch text
generation based on it' while '!diff' meant 'do not guess, do
not generate patch text'.  There was no way to say 'do generate
patch text even when the heuristics says it has NUL in it'.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-04-15 14:35:11 -07:00
Linus Torvalds
04786756f9 Expose subprojects as special files to "git diff" machinery
The same way we generate diffs on symlinks as the the diff of text of the
symlink, we can generate subproject diffs (when not recursing into them!)
as the diff of the text that describes the subproject.

Of course, since what descibes a subproject is just the SHA1, that's what
we'll use. Add some pretty-printing to make it a bit more obvious what is
going on, and we're done.

So with this, we can get both raw diffs and "textual" diffs of subproject
changes:

 - git diff --raw:

	:160000 160000 2de597b5ad348b7db04bd10cdd38cd81cbc93ab5 0000000... M    sub-A

 - git diff:

	diff --git a/sub-A b/sub-A
	index 2de597b..e8f11a4 160000
	--- a/sub-A
	+++ b/sub-A
	@@ -1 +1 @@
	-Subproject commit 2de597b5ad348b7db04bd10cdd38cd81cbc93ab5
	+Subproject commit e8f11a45c5c6b9e2fec6d136d3fb5aff75393d42

NOTE! We'll also want to have the ability to recurse into the subproject
and actually diff it recursively, but that will involve a new command line
option (I'd suggest "--subproject" and "-S", but the latter is in use by
pickaxe), and some very different code.

But regardless of ay future recursive behaviour, we need the non-recursive
version too (and it should be the default, at least in the absense of
config options, so that large superprojects don't default to something
extremely expensive).

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-04-15 12:52:48 -07:00
Junio C Hamano
8c701249d2 Teach 'diff' about 'diff' attribute.
This makes paths that explicitly unset 'diff' attribute not to
produce "textual" diffs from 'git-diff' family.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-04-14 08:57:06 -07:00
Andy Parkins
b18825876a Show binary file size change in diff --stat
Previously, a binary file in the diffstat would show as:

 some-binary-file.bin       |  Bin

The space after the "Bin" was never used.  This patch changes binary
lines in the diffstat to be:

 some-binary-file.bin       |  Bin 12345 -> 123456 bytes

The very nice "->" notation was suggested by Johannes Schindelin, and
shows the before and after sizes more clearly than "+" and "-" would.
If a size is 0 it's not shown (although it would probably be better to
treat no-file differently from zero-byte-file).

The user can see what changed in the binary file, and how big the new
file is.  This is in keeping with the information in the rest of the
diffstat.

The diffstat_t members "added" and "deleted" were unused when the file
was binary, so this patch loads them with the file sizes in
builtin_diffstat().  These figures are then read in show_stats() when
the file is marked binary.

Signed-off-by: Andy Parkins <andyparkins@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-04-05 15:07:16 -07:00
Junio C Hamano
68aacb2f3c diff --quiet
This adds the command line option 'quiet' to tell 'git diff-*'
that we are not interested in the actual diff contents but only
want to know if there is any change.  This option automatically
turns --exit-code on, and turns off output formatting, as it
does not make much sense to show the first hit we happened to
have found.

The --quiet option is silently turned off (but --exit-code is
still in effect, so is silent output) if postprocessing filters
such as pickaxe and diff-filter are used.  For all practical
purposes I do not think of a reason to want to use these filters
and not viewing the diff output.

The backends have not been taught about the option with this patch.
That is a topic for later rounds.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-14 16:21:19 -07:00
Junio C Hamano
3161b4b521 Remove unused diffcore_std_no_resolve
This was only used by diff-tree-helper program, whose purpose
was to translate a raw diff to a patch.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-14 16:21:19 -07:00
Alex Riesen
41bbf9d585 Allow git-diff exit with codes similar to diff(1)
This introduces a new command-line option: --exit-code. The diff
programs will return 1 for differences, return 0 for equality, and
something else for errors.

Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-14 16:21:19 -07:00
Junio C Hamano
cf6981d493 Merge branch 'js/diff-ni'
* js/diff-ni:
  Get rid of the dependency to GNU diff in the tests
  diff --no-index: support /dev/null as filename
  diff-ni: fix the diff with standard input
  diff: support reading a file from stdin via "-"
2007-03-10 23:26:33 -08:00
Shawn O. Pearce
dc49cd769b Cast 64 bit off_t to 32 bit size_t
Some systems have sizeof(off_t) == 8 while sizeof(size_t) == 4.
This implies that we are able to access and work on files whose
maximum length is around 2^63-1 bytes, but we can only malloc or
mmap somewhat less than 2^32-1 bytes of memory.

On such a system an implicit conversion of off_t to size_t can cause
the size_t to wrap, resulting in unexpected and exciting behavior.
Right now we are working around all gcc warnings generated by the
-Wshorten-64-to-32 option by passing the off_t through xsize_t().

In the future we should make xsize_t on such problematic platforms
detect the wrapping and die if such a file is accessed.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-07 11:15:26 -08:00
Junio C Hamano
3afaa72d7d diff-ni: fix the diff with standard input
The earlier commit to read from stdin was full of problems, and
this corrects them.

 - The mode bits should have been set to satisify S_ISREG(); we
   forgot to the S_IFREG bits and hardcoded 0644;
 - We did not give escape hatch to name a path whose name is
   really "-".  Allow users to say "./-" for that;
 - Use of xread() was not prepared to see short read (e.g. reading
   from tty) nor handing read errors.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-04 00:17:27 -08:00
Johannes Schindelin
5332b2af10 diff: support reading a file from stdin via "-"
This allows you to say

	echo Hello World | git diff x -

to compare the contents of file "x" with the line "Hello World".
This automatically switches to --no-index mode.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-03 23:45:47 -08:00
Junio C Hamano
597388f6a1 Merge branch 'np/types'
* np/types:
  Cleanup check_valid in commit-tree.
  make sure enum object_type is signed
  get rid of lookup_object_type()
  convert object type handling from a string to a number
  formalize typename(), and add its reverse type_from_string()
  sha1_file.c: don't ignore an error condition in sha1_loose_object_info()
  sha1_file.c: cleanup "offset" usage
  sha1_file.c: cleanup hdr usage
2007-02-28 11:58:27 -08:00
Nicolas Pitre
21666f1aae convert object type handling from a string to a number
We currently have two parallel notation for dealing with object types
in the code: a string and a numerical value.  One of them is obviously
redundent, and the most used one requires more stack space and a bunch
of strcmp() all over the place.

This is an initial step for the removal of the version using a char array
found in object reading code paths.  The patch is unfortunately large but
there is no sane way to split it in smaller parts without breaking the
system.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-27 01:34:21 -08:00
Johannes Schindelin
34a5e1a2d9 diff --no-index: also imitate the exit status of diff(1)
diff sets the exit status to 0 when no changes were found, to 1
when changes were found, and 2 means error.

We imitate this to be able to use "git diff" in the test scripts.
(Actually, keeping in line with the rest of git, -1 is returned
on error, which corresponds to an exit status 255).

To find out if the diff is not empty, a member called
"found_changes" was introduced in struct diff_options, which is
set in builtin_diff() and fn_out_consume().

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-26 01:20:55 -08:00
Junio C Hamano
048f48a2fd Merge branch 'master' into js/diff-ni
* master: (201 commits)
  Documentation: link in 1.5.0.2 material to the top documentation page.
  Documentation: document remote.<name>.tagopt
  GIT 1.5.0.2
  git-remote: support remotes with a dot in the name
  Documentation: describe "-f/-t/-m" options to "git-remote add"
  diff --cc: fix display of symlink conflicts during a merge.
  merge-recursive: fix longstanding bug in merging symlinks
  merge-index: fix longstanding bug in merging symlinks
  diff --cached: give more sensible error message when HEAD is yet to be created.
  Update tests to use test-chmtime
  Add test-chmtime: a utility to change mtime on files
  Add Release Notes to prepare for 1.5.0.2
  Allow arbitrary number of arguments to git-pack-objects
  rerere: do not deal with symlinks.
  rerere: do not skip two conflicted paths next to each other.
  Don't modify CREDITS-FILE if it hasn't changed.
  diff-patch: Avoid emitting double-slashes in textual patch.
  Reword git-am 3-way fallback failure message.
  Limit filename for format-patch
  core.legacyheaders: Use the description used in RelNotes-1.5.0
  ...
2007-02-26 01:20:42 -08:00
Junio C Hamano
8a13becc0d Merge branch 'maint'
* maint:
  diff-patch: Avoid emitting double-slashes in textual patch.
  Reword git-am 3-way fallback failure message.
  Limit filename for format-patch
  core.legacyheaders: Use the description used in RelNotes-1.5.0
  git-show-ref --verify: Fail if called without a reference

Conflicts:

	builtin-show-ref.c
	diff.c
2007-02-24 01:42:06 -08:00
Junio C Hamano
5089277718 diff-patch: Avoid emitting double-slashes in textual patch.
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-24 01:26:52 -08:00
Junio C Hamano
ef1a5c2fa8 Merge branches 'lt/crlf' and 'jc/apply-config'
* lt/crlf:
  Teach core.autocrlf to 'git apply'
  t0020: add test for auto-crlf
  Make AutoCRLF ternary variable.
  Lazy man's auto-CRLF

* jc/apply-config:
  t4119: test autocomputing -p<n> for traditional diff input.
  git-apply: guess correct -p<n> value for non-git patches.
  git-apply: notice "diff --git" patch again
  Fix botched "leak fix"
  t4119: add test for traditional patch and different p_value
  apply: fix memory leak in prefix_one()
  git-apply: require -p<n> when working in a subdirectory.
  git-apply: do not lose cwd when run from a subdirectory.
  Teach 'git apply' to look at $HOME/.gitconfig even outside of a repository
  Teach 'git apply' to look at $GIT_DIR/config
2007-02-22 21:34:36 -08:00
Johannes Schindelin
d516c2d119 Teach git-diff-files the new option --no-index
With this flag and given two paths, git-diff-files behaves as a GNU diff
lookalike (plus the git goodies like --check, colour, etc.).  This flag
is also available in git-diff.  It also works outside of a git repository.

In addition, if git-diff{,-files} is called without revision or stage
parameter, and with exactly two paths at least one of which is not tracked,
the default is --no-index.

So, you can now say

	git diff /etc/inittab /etc/fstab

and it actually works!

This also unifies the duplicated argument parsing between cmd_diff_files()
and builtin_diff_files().

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-22 20:59:55 -08:00
Johannes Schindelin
13e36ec51b Teach diff -B about colours
Matthias Lederhofer noticed that `diff -B` did not pick up on diff
colournig.

Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-21 00:03:37 -08:00
Junio C Hamano
1968d77dd6 prefixcmp(): fix-up leftover strncmp().
There were instances of strncmp() that were formatted improperly
(e.g. whitespace around parameter before closing parenthesis)
that caused the earlier mechanical conversion step to miss
them.  This step cleans them up.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-20 22:03:15 -08:00
Junio C Hamano
cc44c7655f Mechanical conversion to use prefixcmp()
This mechanically converts strncmp() to use prefixcmp(), but only when
the parameters match specific patterns, so that they can be verified
easily.  Leftover from this will be fixed in a separate step, including
idiotic conversions like

    if (!strncmp("foo", arg, 3))

  =>

    if (!(-prefixcmp(arg, "foo")))

This was done by using this script in px.perl

   #!/usr/bin/perl -i.bak -p
   if (/strncmp\(([^,]+), "([^\\"]*)", (\d+)\)/ && (length($2) == $3)) {
           s|strncmp\(([^,]+), "([^\\"]*)", (\d+)\)|prefixcmp($1, "$2")|;
   }
   if (/strncmp\("([^\\"]*)", ([^,]+), (\d+)\)/ && (length($1) == $3)) {
           s|strncmp\("([^\\"]*)", ([^,]+), (\d+)\)|(-prefixcmp($2, "$1"))|;
   }

and running:

   $ git grep -l strncmp -- '*.c' | xargs perl px.perl

Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-20 22:03:15 -08:00
Junio C Hamano
0bce7a52f2 Merge branch 'js/diff-color-check'
* js/diff-color-check:
  diff --check: use colour
2007-02-19 18:30:59 -08:00
Johannes Schindelin
c5a8c3ecd7 diff --check: use colour
Reuse the colour handling of the regular diff.

Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-18 15:45:51 -08:00
Linus Torvalds
6c510bee20 Lazy man's auto-CRLF
It currently does NOT know about file attributes, so it does its
conversion purely based on content. Maybe that is more in the "git
philosophy" anyway, since content is king, but I think we should try to do
the file attributes to turn it off on demand.

Anyway, BY DEFAULT it is off regardless, because it requires a

	[core]
		AutoCRLF = true

in your config file to be enabled. We could make that the default for
Windows, of course, the same way we do some other things (filemode etc).

But you can actually enable it on UNIX, and it will cause:

 - "git update-index" will write blobs without CRLF
 - "git diff" will diff working tree files without CRLF
 - "git checkout" will write files to the working tree _with_ CRLF

and things work fine.

Funnily, it actually shows an odd file in git itself:

	git clone -n git test-crlf
	cd test-crlf
	git config core.autocrlf true
	git checkout
	git diff

shows a diff for "Documentation/docbook-xsl.css". Why? Because we have
actually checked in that file *with* CRLF! So when "core.autocrlf" is
true, we'll always generate a *different* hash for it in the index,
because the index hash will be for the content _without_ CRLF.

Is this complete? I dunno. It seems to work for me. It doesn't use the
filename at all right now, and that's probably a deficiency (we could
certainly make the "is_binary()" heuristics also take standard filename
heuristics into account).

I don't pass in the filename at all for the "index_fd()" case
(git-update-index), so that would need to be passed around, but this
actually works fine.

NOTE NOTE NOTE! The "is_binary()" heuristics are totally made-up by yours
truly. I will not guarantee that they work at all reasonable. Caveat
emptor. But it _is_ simple, and it _is_ safe, since it's all off by
default.

The patch is pretty simple - the biggest part is the new "convert.c" file,
but even that is really just basic stuff that anybody can write in
"Teaching C 101" as a final project for their first class in programming.
Not to say that it's bug-free, of course - but at least we're not talking
about rocket surgery here.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-14 11:19:22 -08:00
Johannes Schindelin
859f9c4581 teach diff machinery about --ignore-space-at-eol
`git diff --ignore-space-at-eol` will ignore whitespace at the
line ends.

Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-13 21:40:42 -08:00
Junio C Hamano
3eee9c6dbe Merge branch 'jc/diff-apply-patch'
* jc/diff-apply-patch:
  git-diff/git-apply: make diff output a bit friendlier to GNU patch (part 2)
2007-02-13 19:18:16 -08:00
Linus Torvalds
bd3a5b5ee5 Mark places that need blob munging later for CRLF conversion.
Here's a patch that I think we can merge right now. There may be
other places that need this, but this at least points out the
three places that read/write working tree files for git
update-index, checkout and diff respectively. That should cover
a lot of it [jc: git-apply uses an entirely different codepath
both for reading and writing].

Some day we can actually implement it. In the meantime, this
points out a place for people to start. We *can* even start with
a really simple "we do CRLF conversion automatically, regardless
of filename" kind of approach, that just look at the data (all
three cases have the _full_ file data already in memory) and
says "ok, this is text, so let's convert to/from DOS format
directly".

THAT somebody can write in ten minutes, and it would already
make git much nicer on a DOS/Windows platform, I suspect.

And it would be totally zero-cost if you just make it a config
option (but please make it dynamic with the _default_ just being
0/1 depending on whether it's UNIX/Windows, just so that UNIX
people can _test_ it easily).

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-13 10:12:37 -08:00
Alexandre Julliard
e5bfbf9b3e diff.c: More logical file name quoting for renames in diffstat.
Quote both file names separately when printing a rename, yielding
something like

  "foo" => "bar"

instead of the current

  "foo => bar"

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-11 13:08:10 -08:00
Alexandre Julliard
0d26a64ece diff.c: Properly quote file names in diff --summary output.
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-11 12:53:05 -08:00
Alexandre Julliard
b9f441646c diff.c: Reuse the pprint_rename function for diff --summary output.
This avoids some code duplication, and yields more readable results
for directory renames.

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-11 12:47:22 -08:00
Junio C Hamano
471efb09aa diff_flush_name(): take struct diff_options parameter.
Among the low-level output functions called from flush_one_pair(),
this was the only function that did not take (filepair, options)
as arguments.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-09 22:43:02 -08:00
Andy Whitcroft
93822c2239 short i/o: fix calls to write to use xwrite or write_in_full
We have a number of badly checked write() calls.  Often we are
expecting write() to write exactly the size we requested or fail,
this fails to handle interrupts or short writes.  Switch to using
the new write_in_full().  Otherwise we at a minimum need to check
for EINTR and EAGAIN, where this is appropriate use xwrite().

Note, the changes to config handling are much larger and handled
in the next patch in the sequence.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-01-08 15:44:47 -08:00
Junio C Hamano
cf2999eb4c Merge branch 'sp/mmap'
* sp/mmap: (27 commits)
  Spell default packedgitlimit slightly differently
  Increase packedGit{Limit,WindowSize} on 64 bit systems.
  Update packedGit config option documentation.
  mmap: set FD_CLOEXEC for file descriptors we keep open for mmap()
  pack-objects: fix use of use_pack().
  Fix random segfaults in pack-objects.
  Cleanup read_cache_from error handling.
  Replace mmap with xmmap, better handling MAP_FAILED.
  Release pack windows before reporting out of memory.
  Default core.packdGitWindowSize to 1 MiB if NO_MMAP.
  Test suite for sliding window mmap implementation.
  Create pack_report() as a debugging aid.
  Support unmapping windows on 'temporary' packfiles.
  Improve error message when packfile mmap fails.
  Ensure core.packedGitWindowSize cannot be less than 2 pages.
  Load core configuration in git-verify-pack.
  Fully activate the sliding window pack access.
  Unmap individual windows rather than entire files.
  Document why header parsing won't exceed a window.
  Loop over pack_windows when inflating/accessing data.
  ...

Conflicts:

	cache.h
	pack-check.c
2007-01-07 00:12:47 -08:00
Junio C Hamano
e9c8409900 diff-index --cached --raw: show tree entry on the LHS for unmerged entries.
This updates the way diffcore represents an unmerged pair
somewhat.  It used to be that entries with mode=0 on both sides
were used to represent an unmerged pair, but now it has an
explicit flag.  This is to allow diff-index --cached to report
the entry from the tree when the path is unmerged in the index.

This is used in updating "git reset <tree> -- <path>" to restore
absense of the path in the index from the tree.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-01-06 22:57:42 -08:00
Shawn O. Pearce
c4712e4553 Replace mmap with xmmap, better handling MAP_FAILED.
In some cases we did not even bother to check the return value of
mmap() and just assume it worked.  This is bad, because if we are
out of virtual address space the kernel returned MAP_FAILED and we
would attempt to dereference that address, segfaulting without any
real error output to the user.

We are replacing all calls to mmap() with xmmap() and moving all
MAP_FAILED checking into that single location.  If a mmap call
fails we try to release enough least-recently-used pack windows
to possibly succeed, then retry the mmap() attempt.  If we cannot
mmap even after releasing pack memory then we die() as none of our
callers have any reasonable recovery strategy for a failed mmap.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-12-29 11:36:45 -08:00
Junio C Hamano
27e4dd8de7 Merge branch 'maint'
* maint:
  diff --check: fix off by one error
  spurious .sp in manpages
2006-12-21 22:56:04 -08:00
Johannes Schindelin
e6d40d65df diff --check: fix off by one error
When parsing the diff line starting with '@@', the line number of the
'+' file is parsed. For the subsequent line parses, the line number
should therefore be incremented after the parse, not before it.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-12-21 20:31:14 -08:00
Junio C Hamano
85023577a8 simplify inclusion of system header files.
This is a mechanical clean-up of the way *.c files include
system header files.

 (1) sources under compat/, platform sha-1 implementations, and
     xdelta code are exempt from the following rules;

 (2) the first #include must be "git-compat-util.h" or one of
     our own header file that includes it first (e.g. config.h,
     builtin.h, pkt-line.h);

 (3) system headers that are included in "git-compat-util.h"
     need not be included in individual C source files.

 (4) "git-compat-util.h" does not have to include subsystem
     specific header files (e.g. expat.h).

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-12-20 09:51:35 -08:00
Junio C Hamano
5caf923223 fix populate-filespec
I hand munged the original patch when committing 1510fea78, and
screwed up the conversion.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-12-19 21:33:24 -08:00
Nicolas Pitre
ebd124c678 make commit message a little more consistent and conforting
It is nicer to let the user know when a commit succeeded all the time,
not only the first time.  Also the commit sha1 is much more useful than
the tree sha1 in this case.

This patch also introduces a -q switch to supress this message as well
as the summary of created/deleted files.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-12-15 22:29:54 -08:00
Shawn O. Pearce
1510fea781 Avoid accessing a slow working copy during diffcore operations.
The Cygwin folks have done a fine job at creating a POSIX layer
on Windows That Just Works(tm).  However it comes with a penalty;
accessing files in the working tree by way of stat/open/mmap can
be slower for diffcore than inflating the data from a blob which
is stored in a packfile.

This performance problem is especially an issue in merge-recursive
when dealing with nearly 7000 added files, as we are loading
each file's content from the working directory to perform rename
detection.  I have literally seen (and sadly watched) paint dry in
less time than it takes for merge-recursive to finish such a merge.
On the other hand this very same merge runs very fast on Solaris.

If Git is compiled with NO_FAST_WORKING_DIRECTORY set then we will
avoid looking at the working directory when the blob in question
is available within a packfile and the caller doesn't need the data
unpacked into a temporary file.

We don't use loose objects as they have the same open/mmap/close
costs as the working directory file access, but have the additional
CPU overhead of needing to inflate the content before use.  So it
is still faster to use the working tree file over the loose object.

If the caller needs the file data unpacked into a temporary file
its likely because they are going to call an external diff program,
passing the file as a parameter.  In this case reusing the working
tree file will be faster as we don't need to inflate the data and
write it out to a temporary file.

The NO_FAST_WORKING_DIRECTORY feature is enabled by default on
Cygwin, as that is the platform which currently appears to benefit
the most from this option.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-12-15 22:11:19 -08:00
Junio C Hamano
f5c589f1df Merge branch 'jc/numstat'
* jc/numstat:
  diff --numstat: show binary with '-' to match "apply --numstat"
2006-12-13 11:00:32 -08:00
Andy Parkins
a159ca0cb7 Allow subcommand.color and color.subcommand color configuration
While adding colour to the branch command it was pointed out that a
config option like "branch.color" conflicts with the pre-existing
"branch.something" namespace used for specifying default merge urls and
branches.  The suggested solution was to flip the order of the
components to "color.branch", which I did for colourising branch.

This patch does the same thing for
  - git-log (color.diff)
  - git-status (color.status)
  - git-diff (color.diff)
  - pager (color.pager)

I haven't removed the old config options; but they should probably be
deprecated and eventually removed to prevent future namespace
collisions.  I've done this deprecation by changing the documentation
for the config file to match the new names; and adding the "color.XXX"
options to contrib/completion/git-completion.bash.

Unfortunately git-svn reads "diff.color" and "pager.color"; which I
don't like to change unilaterally.

Signed-off-by: Andy Parkins <andyparkins@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-12-13 01:47:36 -08:00
Junio C Hamano
bfddbc5e1e diff --numstat: show binary with '-' to match "apply --numstat"
This changes the --numstat output for binary files from "0 0" to
"- -" to match what "apply --numstat" does.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-12-11 14:17:19 -08:00
Junio C Hamano
1a9eb3b9d5 git-diff/git-apply: make diff output a bit friendlier to GNU patch (part 2)
Somebody was wondering on #git channel why a git generated diff
does not apply with GNU patch when the filename contains a SP.
It is because GNU patch expects to find TAB (and trailing timestamp)
on ---/+++ (old_name and new_name) lines after the filenames.

The "diff --git" output format was carefully designed to be
compatible with GNU patch where it can, but whitespace
characters were always a pain.

This adds an extra TAB (but not trailing timestamp) to old_name
and new_name lines of git-diff output when the filename has a SP
in it.  An earlier patch updated git-apply to prepare for this.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-11-21 21:27:51 -08:00
Junio C Hamano
65606f3530 Merge branch 'js/diff'
* js/diff:
  Turn on recursive with --summary
2006-10-18 22:09:03 -07:00
Junio C Hamano
74e2abe5b7 diff --numstat
[jc: with documentation from Jakub]

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-10-13 21:37:10 -07:00
Johannes Schindelin
d7014dc081 Turn on recursive with --summary
This makes "git log/diff --summary" imply recursive behaviour,
whose effect is summarized in one test output:

    --- a/t/t4013/diff.diff-tree_--pretty_--root_--summary_initial
    +++ b/t/t4013/diff.diff-tree_--pretty_--root_--summary_initial
    @@ -5,7 +5,7 @@ Date:   Mon Jun 26 00:00:00 2006 +0000

	 Initial

    - create mode 040000 dir
    + create mode 100644 dir/sub
      create mode 100644 file0
      create mode 100644 file2
     $

When a file is created in a subdirectory, we used to say just
the directory name only when that directory also was created,
which did not make sense from two reasons.  It is not any more
significant to create a new file in a new directory than to
create a new file in an existing directory, and even if it were,
reportinging the new directory name without saying the actual
filename is not useful.

Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-10-05 15:10:40 -07:00
Junio C Hamano
dd0c367e5e Merge branch 'jc/diff-stat'
* jc/diff-stat:
  diff --stat: ensure at least one '-' for deletions, and one '+' for additions
  diff --stat=width[,name-width]: allow custom diffstat output width.
  diff --stat: color output.
  diff --stat: allow custom diffstat output width.
2006-09-30 21:29:18 -07:00
Junio C Hamano
bc1a580757 git-diff -B output fix.
Geert noticed that complete rewrite diff missed the usual a/ and b/
leading paths.  Pickaxe says it never worked, ever.

Embarrassing.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-29 02:06:24 -07:00
Johannes Schindelin
3ed74e608a diff --stat: ensure at least one '-' for deletions, and one '+' for additions
The number of '-' and '+' is still linear. The idea is that
scaled-length := floor(a * length + b) with the following constraints: if
length == 1, scaled-length == 1, and the combined length of plusses
and minusses should not be larger than the width by a small margin. Thus,

	a + b == 1

and
	a * max_plusses + b + a * max_minusses + b = width + 1

The solution is

	a * x + b = ((width - 1) * (x - 1) + max_change - 1)
		 / (max_change - 1)

Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-28 22:32:53 -07:00
Linus Torvalds
5c5b2ea9ab diff --stat=width[,name-width]: allow custom diffstat output width.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-28 22:27:29 -07:00
Junio C Hamano
785f743276 diff --stat: color output.
Under --color option, diffstat shows '+' and '-' in the graph
the same color as added and deleted lines.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-27 02:57:37 -07:00
Junio C Hamano
a2540023dc diff --stat: allow custom diffstat output width.
This adds two parameters to "diff --stat".

 . --stat-width=72 tells that the page should fit on 72-column output.

 . --stat-name-width=30 tells that the filename part is limited
   to 30 columns.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-27 02:55:08 -07:00
Junio C Hamano
448c3ef144 diff.c: second war on whitespace.
This adds DIFF_WHITESPACE color class (default = reverse red) to
colored diff output to let you catch common whitespace errors.

 - trailing whitespaces at the end of line
 - a space followed by a tab in the indent

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-24 00:12:44 -07:00
Junio C Hamano
b467fb0b90 Merge branch 'jk/diff'
* jk/diff:
  wt-status: remove extraneous newline from 'deleted:' output
  git-status: document colorization config options
  Teach runstatus about --untracked
  git-commit.sh: convert run_status to a C builtin
  Move color option parsing out of diff.c and into color.[ch]
  diff: support custom callbacks for output
2006-09-17 18:14:03 -07:00
Jeff King
7c92fe0eaa Move color option parsing out of diff.c and into color.[ch]
The intent is to lib-ify colorizing code so it can be reused.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-08 16:44:10 -07:00
Jeff King
0424558190 diff: support custom callbacks for output
Users can request the DIFF_FORMAT_CALLBACK output format to get a callback
consisting of the whole diff_queue_struct.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-07 15:40:25 -07:00
Junio C Hamano
82793c55e4 diff --binary generates full index on binary files.
... without --full-index.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-07 02:44:41 -07:00
Shawn Pearce
9befac470b Replace uses of strdup with xstrdup.
Like xmalloc and xrealloc xstrdup dies with a useful message if
the native strdup() implementation returns NULL rather than a
valid pointer.

I just tried to use xstrdup in new code and found it to be missing.
However I expected it to be present as xmalloc and xrealloc are
already commonly used throughout the code.

[jc: removed the part that deals with last_XXX, which I am
 finding more and more dubious these days.]

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-02 03:24:37 -07:00
Junio C Hamano
b32d37a3a6 Merge branch 'jc/apply'
* jc/apply:
  git-apply --reject: finishing touches.
  apply --reject: count hunks starting from 1, not 0
  git-apply --verbose
  git-apply --reject: send rejects to .rej files.
  git-apply --reject
  apply --reverse: tie it all together.
  diff.c: make binary patch reversible.
  builtin-apply --reverse: two bugfixes.
2006-08-27 17:51:05 -07:00
Shawn Pearce
e702496e43 Convert memcpy(a,b,20) to hashcpy(a,b).
This abstracts away the size of the hash values when copying them
from memory location to memory location, much as the introduction
of hashcmp abstracted away hash value comparsion.

A few call sites were using char* rather than unsigned char* so
I added the cast rather than open hashcpy to be void*.  This is a
reasonable tradeoff as most call sites already use unsigned char*
and the existing hashcmp is also declared to be unsigned char*.

[jc: Splitted the patch to "master" part, to be followed by a
 patch for merge-recursive.c which is not in "master" yet.

 Fixed the cast in the latter hunk to combine-diff.c which was
 wrong in the original.

 Also converted ones left-over in combine-diff.c, diff-lib.c and
 upload-pack.c ]

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-23 13:53:10 -07:00
David Rientjes
a89fccd281 Do not use memcmp(sha1_1, sha1_2, 20) with hardcoded length.
Introduces global inline:

	hashcmp(const unsigned char *sha1, const unsigned char *sha2)

Uses memcmp for comparison and returns the result based on the length of
the hash name (a future runtime decision).

Acked-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-17 14:23:53 -07:00
Junio C Hamano
d4c452f03b diff.c: make binary patch reversible.
This matches the format previous "git-apply --reverse" update
expects.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-16 21:08:45 -07:00
David Rientjes
96f1e58f52 remove unnecessary initializations
[jc: I needed to hand merge the changes to the updated codebase,
 so the result needs to be checked.]

Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-15 21:22:20 -07:00
David Rientjes
0bef57ee44 make inline is_null_sha1 global
Replace sha1 comparisons to null_sha1 with a global inline (which previously an
unused static inline in builtin-apply.c)

[jc: with a fix from Jonas Fonseca.]

Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-15 15:06:03 -07:00
David Rientjes
8c0b2bb636 diff.c cleanup
Removes conditional return.

Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-14 18:38:07 -07:00
Junio C Hamano
f3c5b39567 Merge branch 'th/diff-extra' 2006-08-12 19:34:41 -07:00
Johannes Schindelin
f59a59e22f Add the --color-words option to the diff options family
With this option, the changed words are shown inline. For example,
if a file containing "This is foo" is changed to "This is bar", the diff
will now show "This is " in plain text, "foo" in red, and "bar" in green.

Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-10 15:28:57 -07:00
Junio C Hamano
943d5b73e2 allow diff.renamelimit to be set regardless of -M/-C
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-09 14:05:23 -07:00
Junio C Hamano
03b9d560be make --find-copies-harder imply -C
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-09 13:17:19 -07:00
Junio C Hamano
ef677686ef diff.c: do not use pathname comparison to tell renames
The final output from diff used to compare pathnames between
preimage and postimage to tell if the filepair is a rename/copy.
By explicitly marking the filepair created by diffcore_rename(),
the output routine, resolve_rename_copy(), does not have to do
so anymore.  This helps feeding a filepair that has different
pathnames in one and two elements to the diff machinery (most
notably, comparing two blobs).

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-03 14:41:53 -07:00
Matthias Lederhofer
aa086eb813 pager: config variable pager.color
enable/disable colored output when the pager is in use

Signed-off-by: Matthias Lederhofer <matled@gmx.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-31 15:32:24 -07:00
Jeff King
ce43697379 Colorize 'commit' lines in log ui
When paging through the output of git-whatchanged, the color cues help to
visually navigate within a diff. However, it is difficult to notice when a
new commit starts, because the commit and log are shown in the "normal"
color. This patch colorizes the 'commit' line, customizable through
diff.colors.commit and defaulting to yellow.

As a side effect, some of the diff color engine (slot enum, get_color) has
become accessible outside of diff.c.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-24 00:04:41 -07:00
Timo Hirvonen
f5b571fcf7 diff: Support 256 colors
Add support for more than 8 colors.  Colors can be specified as numbers
-1..255.  -1 is same as "normal".

Signed-off-by: Timo Hirvonen <tihirvon@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-13 21:53:25 -07:00
Timo Hirvonen
f37399e6b0 diff: Support both attributes and colors
Make it possible to set both colors and a attribute for diff colors.
Background colors are supported too.

Syntax is now:

	[attr] [fg [bg]]
	[fg [bg]] [attr]

Empty value is same as "normal normal", ie use default colors.  The new
syntax is backwards compatible.

Signed-off-by: Timo Hirvonen <tihirvon@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-13 21:53:23 -07:00
Shawn Pearce
344c52aee5 Avoid C99 initializers
In a handful places, we use C99 structure and array
initializers, which some compilers do not support.

This can be handy when you are trying to compile GIT on a
Solaris system that has an older C compiler, for example.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-10 00:13:28 -07:00
Junio C Hamano
fc93dbbfc9 Merge branch 'ew/diff'
* ew/diff:
  templates/hooks--update: replace diffstat calls with git diff --stat
  diff: do not use configuration magic at the core-level
  Update diff-options and config documentation.
  diff.c: --no-color to defeat diff.color configuration.
  diff.c: respect diff.renames config option
2006-07-09 23:47:39 -07:00
Junio C Hamano
85fb65ed6e "git -p cmd" to page anywhere
This allows you to say:

	git -p diff v2.6.16-rc5..

and the command pipes the output of any git command to your pager.

[jc: this resurrects a month old RFC patch with improvement
 suggested by Linus to call it --paginate instead of --less.]

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-09 03:27:03 -07:00
Junio C Hamano
88f0d5d7d9 Merge branch 'sf/diff' 2006-07-09 00:52:36 -07:00
Junio C Hamano
83ad63cfeb diff: do not use configuration magic at the core-level
The Porcelainish has become so much usable as the UI that there
is not much reason people should be using the core programs by
hand anymore.  At this point we are better off making the
behaviour of the core programs predictable by keeping them
unaffected by the configuration variables.  Otherwise they will
become very hard to use as reliable building blocks.

For example, "git-commit -a" internally uses git-diff-files to
figure out the set of paths that need to be updated in the
index, and we should never allow diff.renames that happens to be
in the configuration to interfere (or slow down the process).

The UI level configuration such as showing renamed diff and
coloring are still honored by the Porcelainish ("git log" family
and "git diff"), but not by the core anymore.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-08 03:11:01 -07:00
Junio C Hamano
a0c2089c1d colored diff: diff.color = auto fix
Even if the standard output is connected to a tty, do not
colorize the diff if we are talking to a dumb terminal when
diff.color configuration variable is set to "auto".

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-07 17:48:02 -07:00
Junio C Hamano
fef88bb013 diff.c: --no-color to defeat diff.color configuration.
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-07 12:28:54 -07:00
Eric Wong
b68ea12e30 diff.c: respect diff.renames config option
diff.renames is mentioned several times in the documentation,
but to my surprise it didn't do anything before this patch.

Also add the --no-renames option to override this from the
command-line.

Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-07 12:28:53 -07:00
Stephan Feder
63ac450119 Teach diff -a as shorthand for --text
Signed-off-by: Stephan Feder <sf@b-i-t.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-07 12:28:04 -07:00
Stephan Feder
6d64ea965b Teach --text option to diff
Add new item text to struct diff_options.
If set then do not try to detect binary files.

Signed-off-by: Stephan Feder <sf@b-i-t.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-07 12:28:04 -07:00
Stephan Feder
c9c95bbc9c Do not drop data from '\0' until eol in patch output
The binary file detection is just a heuristic which can well fail.
Do not produce garbage patches in these cases.

Signed-off-by: Stephan Feder <sf@b-i-t.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-07 03:48:10 -07:00
Junio C Hamano
0c926a3d9c Merge branch 'th/diff'
* th/diff:
  builtin-diff: turn recursive on when defaulting to --patch format.
  t4013: note improvements brought by the new output code.
  t4013: add format-patch tests.
  format-patch: fix diff format option implementation
  combine-diff.c: type sanity.
  t4013 test updates for new output code.
  Fix some more diff options changes.
  Fix diff-tree -s
  log --raw: Don't descend into subdirectories by default
  diff-tree: Use ---\n as a message separator
  Print empty line between raw, stat, summary and patch
  t4013: add more tests around -c and --cc
  whatchanged: Default to DIFF_FORMAT_RAW
  Don't xcalloc() struct diffstat_t
  Add msg_sep to diff_options
  DIFF_FORMAT_RAW is not default anymore
  Set default diff output format after parsing command line
  Make --raw option available for all diff commands
  Merge with_raw, with_stat and summary variables to output_format
  t4013: add tests for diff/log family output options.
2006-07-05 16:31:24 -07:00
Joachim B Haga
12f6c308d5 Make zlib compression level configurable, and change default.
With the change in default, "git add ." on kernel dir is about
twice as fast as before, with only minimal (0.5%) change in
object size. The speed difference is even more noticeable
when committing large files, which is now up to 8 times faster.

The configurability is through setting core.compression = [-1..9]
which maps to the zlib constants; -1 is the default, 0 is no
compression, and 1..9 are various speed/size tradeoffs, 9
being slowest.

Signed-off-by: Joachim B Haga (cjhaga@fys.uio.no)
Acked-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-03 13:55:11 -07:00
Timo Hirvonen
d7de00f7e0 --name-only, --name-status, --check and -s are mutually exclusive
Signed-off-by: Timo Hirvonen <tihirvon@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-01 22:26:00 -07:00
Junio C Hamano
9fdc3bb5c2 diff.c: fix get_patch_id()
The function internally generated diff to get the patch id but
passed a wrong emit flags to the xdiff layer when it did so.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-06-28 22:49:42 -07:00
Junio C Hamano
3969cf7db1 Fix some more diff options changes.
This fixes various problems in the new diff options code.

 - Fix --cc/-c --patch; it showed two-tree diff used internally.

 - Use "---\n" only where it matters -- that is, use it
   immediately after the commit log text when we show a
   commit log and something else before the patch text.

 - Do not output spurious extra "\n"; have an extra newline
   after the commit log text always when we have diff output and
   we are not doing oneline.

 - When running a pickaxe you need to go recursive.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-06-27 15:33:40 -07:00
Timo Hirvonen
3223847a8f Fix diff-tree -s
setup_revisions() calls diff_setup_done() before we can set default
value for output_format.  Don't convert DIFF_FORMAT_NO_OUTPUT to 0 in
diff_setup_done(), it is useless and makes diff-tree believe no diff
format parameters were given and thus lets it reset output_format to
DIFF_FORMAT_RAW.

Signed-off-by: Timo Hirvonen <tihirvon@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-06-27 11:04:47 -07:00
Timo Hirvonen
946c3784a3 Print empty line between raw, stat, summary and patch
Signed-off-by: Timo Hirvonen <tihirvon@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-06-27 10:59:34 -07:00
Timo Hirvonen
5e2b0636c7 Don't xcalloc() struct diffstat_t
Signed-off-by: Timo Hirvonen <tihirvon@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-06-26 14:58:41 -07:00
Timo Hirvonen
39bc9a6c20 Add msg_sep to diff_options
Add msg_sep variable to struct diff_options.  msg_sep is printed after
commit message.  Default is "\n", format-patch sets it to "---\n".

This also removes the second argument from show_log() because all
callers derived it from the first argument:

    show_log(rev, rev->loginfo, ...

Signed-off-by: Timo Hirvonen <tihirvon@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-06-26 14:58:41 -07:00
Timo Hirvonen
c9b5ef998a Set default diff output format after parsing command line
Initialize output_format to 0 instead of DIFF_FORMAT_RAW so that we can see
later if any command line options changed it.  Default value is set only if
output format was not specified.

Signed-off-by: Timo Hirvonen <tihirvon@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-06-26 14:58:40 -07:00
Timo Hirvonen
a610786f4b Make --raw option available for all diff commands
Signed-off-by: Timo Hirvonen <tihirvon@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-06-26 14:58:40 -07:00
Timo Hirvonen
c6744349df Merge with_raw, with_stat and summary variables to output_format
DIFF_FORMAT_* are now bit-flags instead of enumerated values.

Signed-off-by: Timo Hirvonen <tihirvon@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-06-26 14:58:40 -07:00
Johannes Schindelin
fcb3d0adc1 add diff_flush_patch_id() to calculate the patch id
Call it like this:

unsigned char id[20];
if (diff_flush_patch_id(diff_options, id))
	printf("And the patch id is: %s\n", sha1_to_hex(id));

Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-06-26 14:44:03 -07:00
Junio C Hamano
6a0dbb8a5c Merge branch 'jc/diff'
* jc/diff:
  diff --color: use $GIT_DIR/config
2006-06-26 14:36:02 -07:00
Junio C Hamano
2cc06a0500 Merge branch 'js/diff'
* js/diff:
  Teach diff about -b and -w flags
2006-06-26 14:28:42 -07:00
Junio C Hamano
801235c5e6 diff --color: use $GIT_DIR/config
This lets you use something like this in your $GIT_DIR/config
file.

	[diff]
		color = auto

	[diff.color]
		new = blue
		old = yellow
		frag = reverse

When diff.color is set to "auto", colored diff is enabled when
the standard output is the terminal.  Other choices are "always",
and "never".  Usual boolean true/false can also be used.

The colormap entries can specify colors for the following slots:

	plain	- lines that appear in both old and new file (context)
	meta	- diff --git header and extended git diff headers
	frag	- @@ -n,m +l,k @@ lines (hunk header)
	old	- lines deleted from old file
	new	- lines added to new file

The following color names can be used:

	normal, bold, dim, l, blink, reverse, reset,
	black, red, green, yellow, blue, magenta, cyan,
	white

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-06-25 00:39:13 -07:00
Timo Hirvonen
d2543b8ee3 Clean up diff.c
Signed-off-by: Timo Hirvonen <tihirvon@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-06-24 20:16:55 -07:00
Junio C Hamano
0ec2f6b739 diff --color: use reset sequence when we mean reset.
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-06-24 04:24:34 -07:00
Johannes Schindelin
0d21efa51c Teach diff about -b and -w flags
This adds -b (--ignore-space-change) and -w (--ignore-all-space) flags to
diff. The main part of the patch is teaching libxdiff about it.

[jc: renamed xdl_line_match() to xdl_recmatch() since the former is used
 for different purposes in xpatchi.c which is in the parts of the upstream
 source we do not use.]

Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-06-23 17:35:27 -07:00