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6ab4055775
The built-in bundle transport and the transport helper interface do not work when transport_fetch_refs() is called immediately after transport creation. This will be needed in a subsequent patch, so fix this. Evidence: fetch_refs_from_bundle() relies on data->header being initialized in get_refs_from_bundle(), and fetch() in transport-helper.c relies on either data->fetch or data->import being set by get_helper(), but neither transport_helper_init() nor fetch() calls get_helper(). Up until the introduction of the partial clone feature, this has not been a problem, because transport_fetch_refs() is always called after transport_get_remote_refs(). With the introduction of the partial clone feature, which involves calling transport_fetch_refs() (to fetch objects by their OIDs) without transport_get_remote_refs(), this is still not a problem, but only coincidentally - we do not support partially cloning a bundle, and as for cloning using a transport-helper-using protocol, it so happens that before transport_fetch_refs() is called, fetch_refs() in fetch-object.c calls transport_set_option(), which means that the aforementioned get_helper() is invoked through set_helper_option() in transport-helper.c. This could be fixed by fixing the transports themselves, but it doesn't seem like a good idea to me to open up previously untested code paths; also, there may be transport helpers in the wild that assume that "list" is always called before "fetch". Instead, fix this by having transport_fetch_refs() call transport_get_remote_refs() to ensure that the latter is always called at least once, unless the transport explicitly states that it supports fetching without listing refs. Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com> |
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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