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5ea0176003
"git apply" uses the pathname parsed out of the "diff --git" header to decide which path is being patched, but this is used only when there is no other names available in the patch. When there is any content change (like we can see in this patch, that modifies the contents of "apply.c") or rename (which comes with "rename from" and "rename to" extended diff headers), the names are available without having to parse this header. When we do need to parse this header, a special care needs to be taken, as the name of a directory or a file can have a SP in it so it is not like "find a space, and take everything before the space and that is the preimage filename, everything after the space is the postimage filename". We have a loop that stops at every SP on the "diff --git a/dir/file b/dir/foo" line and see if that SP is the right place that separates such a pair of names. Unfortunately, this loop can terminate prematurely when a crafted directory name ended with a SP. The next pathname component after that SP (i.e. the beginning of the possible postimage filename) will be a slash, and instead of rejecting that position as the valid separation point between pre- and post-image filenames and keep looping, we stopped processing right there. The fix is simple. Instead of stopping and giving up, keep going on when we see such a condition. Reported-by: Han Young <hanyang.tony@bytedance.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 and Documentation/CodingGuidelines).
Those wishing to help with error message, usage and informational message
string translations (localization l10) should see po/README.md
(a po file is a Portable Object file that holds the translations).
To subscribe to the list, send an email with just "subscribe git" in the body to majordomo@vger.kernel.org (not the Git list). 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