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When cloning a repository with an unborn HEAD, we'll set the local HEAD to match it only if the local repository is non-bare. This is inconsistent with all other combinations: remote HEAD | local repo | local HEAD ----------------------------------------------- points to commit | non-bare | same as remote points to commit | bare | same as remote unborn | non-bare | same as remote unborn | bare | local default So I don't think this is some clever or subtle behavior, but just a bug in 4f37d45706 (clone: respect remote unborn HEAD, 2021-02-05). And it's easy to see how we ended up there. Before that commit, the code to set up the HEAD for an empty repo was guarded by "if (!option_bare)". That's because the only thing it did was call install_branch_config(), and we don't want to do so for a bare repository (unborn HEAD or not). That commit put the handling of unborn HEADs into the same block, since those also need to call install_branch_config(). But the unborn case has an additional side effect of calling create_symref(), and we want that to happen whether we are bare or not. This patch just pulls all of the "figure out the default branch" code out of the "!option_bare" block. Only the actual config installation is kept there. Note that this does mean we might allocate "ref" and not use it (if the remote is empty but did not advertise an unborn HEAD). But that's not really a big deal since this isn't a hot code path, and it keeps the code simple. The alternative would be handling unborn_head_target separately, but that gets confusing since its memory ownership is tangled up with the "ref" variable. There's just one new test, for the case we're fixing. The other ones in the table are handled elsewhere (the unborn non-bare case just above, and the actually-born cases in t5601, t5606, and t5609, as they do not require v2's "unborn" protocol extension). Signed-off-by: Jeff King <peff@peff.net> 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). 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