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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>
//////////////////////////////////////////////////////////////// GIT - the stupid content tracker //////////////////////////////////////////////////////////////// "git" can mean anything, depending on your mood. - random three-letter combination that is pronounceable, and not actually used by any common UNIX command. The fact that it is a mispronunciation of "get" may or may not be relevant. - stupid. contemptible and despicable. simple. Take your pick from the dictionary of slang. - "global information tracker": you're in a good mood, and it actually works for you. Angels sing, and a light suddenly fills the room. - "goddamn idiotic truckload of sh*t": when it breaks Git is a fast, scalable, distributed revision control system with an unusually rich command set that provides both high-level operations and full access to internals. Git is an Open Source project covered by the GNU General Public License. It was originally written by Linus Torvalds with help of a group of hackers around the net. It is currently maintained by Junio C Hamano. Please read the file INSTALL for installation instructions. See Documentation/tutorial.txt to get started, then see Documentation/everyday.txt for a useful minimum set of commands, and "man git-commandname" for documentation of each command. CVS users may also want to read Documentation/cvs-migration.txt. Many Git online resources are accessible from http://git.or.cz/ including full documentation and Git related tools. The user discussion and development of Git take place on the Git mailing list -- everyone is welcome to post bug reports, feature requests, comments and patches to git@vger.kernel.org. To subscribe to the list, send an email with just "subscribe git" in the body to majordomo@vger.kernel.org. The mailing list archives are available at http://marc.theaimsgroup.com/?l=git and other archival sites. The messages titled "A note from the maintainer", "What's in git.git (stable)" and "What's cooking in git.git (topics)" and the discussion following them on the mailing list give a good reference for project status, development direction and remaining tasks.