Now, you can say "git diff --stat" (to get an idea how many changes are
uncommitted), or "git log --stat".
Signed-off-by: NJohannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

These flags ask diff with a specific unmerged stage, so it
should fall back on -p instead.  Also when -c is given, we
should not do --cc.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

The --cc output is much nicer when dealing with merges, so use
it by default.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Signed-off-by: NFredrik Kuivinen <freku045@student.liu.se>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

When the user gives a diff option (e.g. --cached) to "git diff",
we turned off the built-in default option -p, which is usually
not what user wants to see.

This commit makes lack of --name-status, --name-only nor -r to
add -p, and lack of -B*, -C* nor -M* to add -M to the flags
given to the underlying diff.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

As a fallout from not using git-sh-setup in scripts that can
operate from a subdirectory, we lost definition of die() from
them.  It might make sense to do some cleanup to consolidate
them back again, but this should suffice for now.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

It adds "--" to the git-diff.sh scripts, to keep any filenames that start
with a "-" from being confused with an option.

But in order to do that, it needs to teach git-diff-files to honor "--".
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

When making changes to different files (i.e. dirty working tree) and
committing logically separate changes in groups, often it is necessary
to run 'git diff --cached HEAD' to make sure that the changes being
committed makes sense.  Saying 'git diff --cached' by mistake gives
rather uninformative error message from git-diff-files complaining it
does not understand --cached flag.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

As promised, this is the "big tool rename" patch.  The primary differences
since 0.99.6 are:

  (1) git-*-script are no more.  The commands installed do not
      have any such suffix so users do not have to remember if
      something is implemented as a shell script or not.

  (2) Many command names with 'cache' in them are renamed with
      'index' if that is what they mean.

There are backward compatibility symblic links so that you and
Porcelains can keep using the old names, but the backward
compatibility support  is expected to be removed in the near
future.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

This uses the fixed rev-parse to allow passing diff options to the
underlying diff command.  For example:

    $ git diff -r HEAD

shows the output in raw-diff format, and

    $ git diff -p -R HEAD | git apply

generates a patch to go back from your working tree to HEAD commit
(i.e. an expensive way to say "git checkout -f HEAD").

At the same time, it accidentally removes the use of shell arrays.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

When "git-diff-script A..B" notation was introduced, it ended up breaking
the traditional two revisions notation.

[jc: there are other issues with the current "git diff" I would like to
 address, but they would be left to later rounds.  For example, -M and -p flags
 should not be hardcoded default, and it shouldn't be too hard to rewrite
 the script without using shell arrays.]
Signed-off-by: NJunio C Hamano <junkio@cox.net>

We always show the diff as an absolute path, but pathnames to diff are
taken relative to the current working directory (and if no pathnames are
given, the default ends up being all of the current working directory).

Note that "../xyz" also works, so you can do

	cd linux/drivers/char
	git diff ../block

and it will generate a diff of the linux/drivers/block changes.
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Give a sane error rather than just silently claiming no diffs when
you're not at the top-level directory.

This allows you to do

	git diff v2.6.12..v2.6.13-rc1 drivers/pcmcia

to see the diff between v2.6.12 and v2.6.13-rc1 as limited by the
filename argument.

The "C" in "-C" may stand for "Cool", but it's also pretty slow, since
right now it leaves all unmodified files to be tested even if there are
no new files at all.  That just ends up being unacceptably slow for big
projects, especially if it's not all in the cache.

Right now it confuses at least git-diff-files, since it leaves
all the files (whether changed or not) in the diff queue.

Fix permissions, and add trivial "reset" and "add" scripts.

The "reset" script just resets the index back to head, while the "add"
script is just a crutch for people used to do "cvs add".

It's a simple helper that depending on the arguments will either
use git-diff-files, git-diff-cache or git-diff-tree.