58fde418fa
There are many tests that validate whether 'git pack-objects' works as expected. Instead of duplicating these tests, add a new test environment variable, GIT_TEST_PACK_PATH_WALK, that implies --path-walk by default when specified. This was useful in testing the implementation of the --path-walk implementation, especially in conjunction with test such as: - t0411-clone-from-partial.sh : One test fetches from a repo that does not have the boundary objects. This causes the path-based walk to fail. Disable the variable for this test. - t5306-pack-nobase.sh : Similar to t0411, one test fetches from a repo without a boundary object. - t5310-pack-bitmaps.sh : One test compares the case when packing with bitmaps to the case when packing without them. Since we disable the test variable when writing bitmaps, this causes a difference in the object list (the --path-walk option adds an extra object). Specify --no-path-walk in both processes for the comparison. Another test checks for a specific delta base, but when computing dynamically without using bitmaps, the base object it too small to be considered in the delta calculations so no base is used. - t5316-pack-delta-depth.sh : This script cares about certain delta choices and their chain lengths. The --path-walk option changes how these chains are selected, and thus changes the results of this test. - t5322-pack-objects-sparse.sh : This demonstrates the effectiveness of the --sparse option and how it combines with --path-walk. - t5332-multi-pack-reuse.sh : This test verifies that the preferred pack is used for delta reuse when possible. The --path-walk option is not currently aware of the preferred pack at all, so finds a different delta base. - t7406-submodule-update.sh : When using the variable, the --depth option collides with the --path-walk feature, resulting in a warning message. Disable the variable so this warning does not appear. I want to call out one specific test change that is only temporary: - t5530-upload-pack-error.sh : One test cares specifically about an "unable to read" error message. Since the current implementation performs delta calculations within the path-walk API callback, a different "unable to get size" error message appears. When this is changed in a future refactoring, this test change can be reverted. Similar to GIT_TEST_NAME_HASH_VERSION, we do not add this option to the linux-TEST-vars CI build as that's already an overloaded build. Signed-off-by: Derrick Stolee <stolee@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.adoc to get started, then see
Documentation/giteveryday.adoc for a useful minimum set of commands, and
Documentation/git-<commandname>.adoc 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.adoc
(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 to git+subscribe@vger.kernel.org (see https://subspace.kernel.org/subscribing.html for details). The mailing list archives are available at https://lore.kernel.org/git/, https://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