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When making a partial-commit, we need to prepare two index files, one to be used to write out the tree to be committed (temporary index) and the other to be used as the index file after the commit is made. The temporary index needs to be initialized to HEAD and then all the named paths on the command line need to be staged on top of the index. For this, running add_files_to_cache() that compares what is in the index and the paths given from the command line is not enough -- the comparison will miss the paths that the user previously ran "git add" to the index since the HEAD because the index reset to the HEAD would not know about them. The index file needs to get the same modification done when preparing the temporary index as described above. This implementation mimics the behaviour of the scripted version of git-commit. It first runs overlay_tree_on_cache(), which was stolen from ls-files with the earlier change, to get the list of paths that the user can potentially mean, and then uses pathspec_match() to find which ones the user meant. This list of paths is used to update both the temporary and the real index file. Additional fixes are: - read the index file after pre-commit hook returns, as the hook can modify it to affect the contents of the commit. - remove the temporary index file .git/next-index-* after commit is done or aborted. - run post-commit hook with the real index file to be used after the commit (previously it gave the temporary commit if a partial commit was made). - resurrect the safety mechanism to refuse partial commits during a merge to match the scripted version. Signed-off-by: Junio C Hamano <gitster@pobox.com>
//////////////////////////////////////////////////////////////// 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.