26b5d6b0e5
For sparse-checkouts, we don't want unpack-trees to error out on files that are missing from the worktree, so there has traditionally been logic to make it skip the verify_uptodate() check for these. Unfortunately, it was skipping the verify_uptodate() check for files that were expected to *become* SKIP_WORKTREE. For files that were not already SKIP_WORKTREE, that can cause us to later delete the file in apply_sparse_checkout(). Only skip the check for files that were already SKIP_WORKTREE as well to avoid lightly discarding important changes users may have made to files. Note 1: unpack-trees.c is already a bit complex, and the logic around CE_SKIP_WORKTREE and CE_NEW_SKIP_WORKTREE in that file are no exception. I also tried just replacing CE_NEW_SKIP_WORKTREE with CE_SKIP_WORKTREE in the verify_uptodate() check instead of checking for both flags, and found that it also fixed this bug and passed all the tests. I also attempted to devise a few testcases that might trip either variant of my fix and was unable to find any problems. It may be that just checking CE_SKIP_WORKTREE is a better fix, but I'm not sure. I thought it was a bit safer to strictly reduce the number of cases where we skip the up-to-date check rather than just toggling which kind of cases skip it, and thus went with the current variant of the fix. Note 2: I also wondered if verify_absent() might have a similar bug, but despite my attempts to try to devise a testcase that would trigger such a thing, I couldn't find any problematic testcases. Thus, this patch makes no attempt to apply similar changes to verify_absent() and verify_absent_if_directory(). Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com> |
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README.md
Git - fast, scalable, distributed revision control system
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 version 2 (some parts of it are under different licenses, compatible with the GPLv2). It was originally written by Linus Torvalds with help of a group of hackers around the net.
Please read the file INSTALL for installation instructions.
Many Git online resources are accessible from https://git-scm.com/ including full documentation and Git related tools.
See Documentation/gittutorial.txt to get started, then see
Documentation/giteveryday.txt for a useful minimum set of commands, and
Documentation/git-<commandname>.txt for documentation of each command.
If git has been correctly installed, then the tutorial can also be
read with man gittutorial or git help tutorial, and the
documentation of each command with man git-<commandname> or git help <commandname>.
CVS users may also want to read Documentation/gitcvs-migration.txt
(man gitcvs-migration or git help cvs-migration if git is
installed).
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 (read Documentation/SubmittingPatches for instructions on patch submission). 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 https://lore.kernel.org/git/, http://marc.info/?l=git and other archival sites.
Issues which are security relevant should be disclosed privately to the Git Security mailing list git-security@googlegroups.com.
The maintainer frequently sends the "What's cooking" reports that list the current status of various development topics to the mailing list. The discussion following them give a good reference for project status, development direction and remaining tasks.
The name "git" was given by Linus Torvalds when he wrote the very first version. He described the tool as "the stupid content tracker" and the name as (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