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: Junio 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: Junio 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: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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.
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".
