19fc5e84a7
The LOOKUP_UNKNOWN_OBJECT flag was introduced in commit46f0344("sha1_file: support reading from a loose object of unknown type", 2015-05-03) in order to support a feature in cat-file subsequently introduced in commit39e4ae3("cat-file: teach cat-file a '--allow-unknown-type' option", 2015-05-03). Despite its name and location in cache.h, this flag is used neither in read_sha1_file_extended() nor in any of the lookup functions, but used only in sha1_object_info_extended(). Therefore rename this flag to OBJECT_INFO_ALLOW_UNKNOWN_TYPE, taking the name of the cat-file flag that invokes this feature, and move it closer to the declaration of sha1_object_info_extended(). Also add documentation for this flag. OBJECT_INFO_ALLOW_UNKNOWN_TYPE is defined to 2, not 1, to avoid conflicting with LOOKUP_REPLACE_OBJECT. Avoidance of this conflict is necessary because sha1_object_info_extended() supports both flags. Signed-off-by: Jonathan Tan <jonathantanmy@google.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-.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.
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