Git with broken hash generation to generate collisions between object IDs. Don't use this!
https://undefinedbehavior.de/posts/commit-vandalism/
cb8010bbff
When setting DEVELOPER = 1 DEVOPTS = extra-all "gcc (Raspbian 6.3.0-18+rpi1+deb9u1) 6.3.0 20170516" errors out with "comparison is always false due to limited range of data type" "[-Werror=type-limits]" It turns out that the function xcurl_off_t() has 2 flavours: - It gives a warning 32 bit systems, like Linux - It takes the signed ssize_t as a paramter, but the only caller is using a size_t (which is typically unsigned these days) The original motivation of this function is to make sure that sizes > 2GiB are handled correctly. The curl documentation says: "For any given platform/compiler curl_off_t must be typedef'ed to a 64-bit wide signed integral data type" On a 32 bit system "size_t" can be promoted into a 64 bit signed value without loss of data, and therefore we may see the "comparison is always false" warning. On a 64 bit system it may happen, at least in theory, that size_t is > 2^63, and then the promotion from an unsigned "size_t" into a signed "curl_off_t" may be a problem. One solution to suppress a possible compiler warning could be to remove the function xcurl_off_t(). However, to be on the very safe side, we keep it and improve it: - The len parameter is changed from ssize_t to size_t - A temporally variable "size" is used, promoted int uintmax_t and the compared with "maximum_signed_value_of_type(curl_off_t)". Thanks to Junio C Hamano for this hint. Signed-off-by: Torsten Bögershausen <tboegi@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com> |
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| builtin | ||
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| compat | ||
| contrib | ||
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| ewah | ||
| git-gui | ||
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| gitweb | ||
| mergetools | ||
| negotiator | ||
| perl | ||
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| refs | ||
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| t | ||
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| Makefile | ||
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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