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Regression tests are automated tests which try to ensure a specific behavior. The idea is: if the test case fails, the behavior indicated in the test case's title regressed. If a regression test that fails, even occasionally, for any reason other than to indicate the particular regression(s) it tries to catch, it is less useful than when it really only fails when there is a bug in the (non-test) code that needs to be fixed. In the instance of the test case "submodule update --init --recursive from subdirectory" of the script t7406-submodule-update.sh, the exact output of a recursive clone is compared with a pre-generated one. And this is a racy test because the structure of the submodules only guarantees a *partial* order. The 'none' and the 'rebasing' submodules *can* be cloned in any order, which means that a mismatch with the hard-coded order does not necessarily indicate a bug in the tested code. See for example: https://git-for-windows.visualstudio.com/git/_build/results?buildId=14035&view=logs To prevent such false positives from unnecessarily costing time when investigating test failures, let's take the exact order of the lines out of the equation by sorting them before comparing them. This test script seems not to have any more test cases that try to verify any specific order in which recursive clones process the submodules, therefore this is the only test case that is changed in this manner. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> 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-.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://public-inbox.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