c972ec0420
The implementation of "git add" has four major codepaths that are mutually exclusive: - if "--interactive" or "--patch" is given, spawn "git add--interactive" and exit without doing anything else. Otherwise things are handled internally in this C code; - if "--update" is given, update the modified files and exit without doing anything else; - if "--refresh" is given, do refresh and exit without doing anything else; - otherwise, find the paths that match pathspecs and stage their contents. It led to an unholy mess in the code structure; each of the latter three codepaths has a separate call to read_cache(), even though they are all about "read the current index, update it and write it back", and logically they should read the index once _anyway_. This cleans up the latter three cases by introducing a pair of helper variables: - "add_new_files" is set if we need to scan the working tree for paths that match the pathspec. This variable is false for "--update" and "--refresh", because they only work on already tracked files. - "require_pathspec" is set if the user must give at least one pathspec. "--update" does not need it but all the other cases do. This is in preparation for introducing a new option "--all", that does the equivalent of "git add -u && git add ." (aka "addremove"). 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.