287fd17e3a
Prevent the repository root from being collapsed into a sparse directory by treating an empty path as "inside the sparse-checkout". When collapsing a sparse index (e.g. in 'git sparse-checkout reapply'), the root directory typically could not become a sparse directory due to the presence of in-cone root-level files and directories. However, if no such in-cone files or directories were present, there was no explicit check signaling that the "repository root path" (an empty string, in the case of 'convert_to_sparse(...)') was in-cone, and a sparse directory index entry would be created from the repository root directory. The documentation in Documentation/git-sparse-checkout.txt explicitly states that the files in the root directory are expected to be in-cone for a cone-mode sparse-checkout. Collapsing the root into a sparse directory entry violates that assumption, as sparse directory entries are expected to be outside the sparse cone and have SKIP_WORKTREE enabled. This invalid state in turn causes issues with commands that interact with the index, e.g. 'git status'. Treating an empty (root) path as in-cone prevents the creation of a root sparse directory in 'convert_to_sparse(...)'. Because the repository root is otherwise never compared with sparse patterns (in both cone-mode and non-cone sparse-checkouts), the new check does not cause additional changes to how sparse patterns are applied. Helped-by: Derrick Stolee <derrickstolee@github.com> Signed-off-by: Victoria Dye <vdye@github.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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 and Documentation/CodingGuidelines).
Those wishing to help with error message, usage and informational message
string translations (localization l10) should see po/README.md
(a po file is a Portable Object file that holds the translations).
To subscribe to the list, send an email with just "subscribe git" in the body to majordomo@vger.kernel.org (not the Git list). 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