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e4ff3b67c2
As discussed in644de29e22(http: drop support for curl < 7.19.4, 2021-07-30) checking against LIBCURL_VERSION_NUM isn't as reliable as checking specific symbols present in curl, as some distros have been known to backport features. However, while some of the curl_easy_setopt() arguments we rely on are macros, others are enum, and we can't assume that those that are macros won't change into enums in the future. So we're still going to have to check LIBCURL_VERSION_NUM, but by doing that in one central place and using a macro definition of our own, anyone who's backporting features can define it themselves, and thus have access to more modern curl features that they backported, even if they didn't bump the LIBCURL_VERSION_NUM. More importantly, as shown in a preceding commit doing these version checks makes for hard to read and possibly buggy code, as shown by the bug fixed there where we were conflating base 10 for base 16 when comparing the version. By doing them all in one place we'll hopefully reduce the chances of such future mistakes, furthermore it now becomes easier to see at a glance what the oldest supported version is, which makes it easier to reason about any future deprecation similar to the recente48a623dea(Merge branch 'ab/http-drop-old-curl', 2021-08-24). Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.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-<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