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Derrick Stolee 2ee11f7261 commit-graph: return generation from memory The commit_graph_generation() method used to report a value of GENERATION_NUMBER_INFINITY if the commit_graph_data_slab had an instance for the given commit but the graph_pos indicated the commit was not in the commit-graph file. However, an upcoming change will introduce the ability to set generation values in-memory without writing the commit-graph file. Thus, we can no longer trust 'graph_pos' to indicate whether or not the generation member can be trusted. Instead, trust the 'generation' member if the commit has a value in the slab _and_ the 'generation' member is non-zero. Otherwise, treat it as GENERATION_NUMBER_INFINITY. This only makes a difference for a very old case for the commit-graph: the very first Git release to write commit-graph files wrote zeroes in the topological level positions. If we are parsing a commit-graph with all zeroes, those commits will now appear to have GENERATION_NUMBER_INFINITY (as if they were not parsed from the commit-graph). I attempted several variations to work around the need for providing an uninitialized 'generation' member, but this was the best one I found. It does require a change to a verification test in t5318 because it reports a different error than the one about non-zero generation numbers. Signed-off-by: Derrick Stolee <derrickstolee@github.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>		2023-03-20 12:17:33 -07:00
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Documentation	for-each-ref: add --stdin option	2023-03-20 12:17:32 -07:00
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builtin	for-each-ref: add --stdin option	2023-03-20 12:17:32 -07:00
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t	commit-graph: return generation from memory	2023-03-20 12:17:33 -07:00
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GIT-VERSION-GEN	Git 2.40-rc1	2023-03-01 08:13:35 -08:00
INSTALL	…
LGPL-2.1	…
Makefile	…
README.md	…
RelNotes	Prepare for 2.39.3 just in case	2023-02-14 14:15:57 -08:00
SECURITY.md	…
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add-patch.c	…
advice.c	…
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apply.c	Merge branch 'jk/unused-post-2.39' into maint-2.39	2023-02-14 14:15:55 -08:00
apply.h	…
archive-tar.c	…
archive-zip.c	…
archive.c	Merge branch 'rs/archive-mtime'	2023-02-27 10:08:57 -08:00
archive.h	archive: add --mtime	2023-02-18 09:29:13 -08:00
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base85.c	…
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branch.c	…
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builtin.h	…
bulk-checkin.c	…
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bundle-uri.c	Merge branch 'ds/bundle-uri-5'	2023-02-15 17:11:52 -08:00
bundle-uri.h	…
bundle.c	Merge branch 'ab/various-leak-fixes'	2023-02-22 14:55:45 -08:00
bundle.h	…
cache-tree.c	Merge branch 'rs/cache-tree-strbuf-growth-fix'	2023-02-22 14:55:44 -08:00
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cache.h	Merge branch 'ab/the-index-compatibility'	2023-02-22 14:55:44 -08:00
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chdir-notify.c	…
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check-builtins.sh	…
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commit-graph.c	commit-graph: return generation from memory	2023-03-20 12:17:33 -07:00
commit-graph.h	…
commit-reach.c	…
commit-reach.h	…
commit-slab-decl.h	…
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commit-slab.h	…
commit.c	Merge branch 'rs/clear-commit-marks-cleanup' into maint-2.39	2023-02-14 14:15:56 -08:00
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credential.c	credential: new attribute password_expiry_utc	2023-02-22 15:18:58 -08:00
credential.h	credential: new attribute password_expiry_utc	2023-02-22 15:18:58 -08:00
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delta-islands.c	delta-islands: fix segfault when freeing island marks	2023-02-21 09:15:04 -08:00
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delta.h	…
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diff.c	Merge branch 'jc/diff-algo-attribute'	2023-02-27 10:08:56 -08:00
diff.h	Merge branch 'jc/diff-algo-attribute'	2023-02-27 10:08:56 -08:00
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dir-iterator.c	dir-iterator: drop unused `DIR_ITERATOR_FOLLOW_SYMLINKS`	2023-02-16 16:21:56 -08:00
dir-iterator.h	dir-iterator: drop unused `DIR_ITERATOR_FOLLOW_SYMLINKS`	2023-02-16 16:21:56 -08:00
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git-curl-compat.h	…
git-cvsexportcommit.perl	…
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git-request-pull.sh	…
git-send-email.perl	…
git-sh-i18n.sh	…
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git-svn.perl	…
git-web--browse.sh	…
git.c	trace.c, git.c: remove unnecessary parameter to trace_repo_setup()	2023-02-21 12:06:32 -08:00
git.rc	…
gpg-interface.c	Merge branch 'js/gpg-errors'	2023-02-24 11:32:29 -08:00
gpg-interface.h	…
graph.c	…
graph.h	…
grep.c	Merge branch 'ab/various-leak-fixes'	2023-02-22 14:55:45 -08:00
grep.h	…
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help.c	…
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linear-assignment.c	…
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list-objects-filter-options.c	…
list-objects-filter-options.h	…
list-objects-filter.c	Merge branch 'jk/unused-post-2.39' into maint-2.39	2023-02-14 14:15:55 -08:00
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mem-pool.c	…
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range-diff.c	range-diff: avoid compiler warning when char is unsigned	2023-02-28 14:43:05 -08:00
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reachable.c	…
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read-cache.c	Merge branch 'rs/size-t-fixes'	2023-02-15 17:11:53 -08:00
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ref-filter.c	…
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reflog.c	Merge branch 'rs/reflog-expiry-cleanup' into maint-2.39	2023-02-14 14:15:56 -08:00
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refs.c	Merge branch 'jk/shorten-unambiguous-ref-wo-sscanf'	2023-02-27 10:08:57 -08:00
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revision.h	…
run-command.c	…
run-command.h	…
scalar.c	…
send-pack.c	…
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sequencer.c	Merge branch 'pw/rebase-i-parse-fix'	2023-02-28 16:38:47 -08:00
sequencer.h	…
serve.c	…
serve.h	…
server-info.c	…
setup.c	…
sh-i18n--envsubst.c	…
sha1dc_git.c	…
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shallow.c	…
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shared.mak	…
shell.c	…
shortlog.h	…
sideband.c	…
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sigchain.c	…
sigchain.h	…
simple-ipc.h	…
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trace.c	trace.c, git.c: remove unnecessary parameter to trace_repo_setup()	2023-02-21 12:06:32 -08:00
trace.h	trace.c, git.c: remove unnecessary parameter to trace_repo_setup()	2023-02-21 12:06:32 -08:00
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upload-pack.c	…
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url.c	…
url.h	…
urlmatch.c	…
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userdiff.c	Merge branch 'jc/diff-algo-attribute'	2023-02-27 10:08:56 -08:00
userdiff.h	diff: teach diff to read algorithm from diff driver	2023-02-21 09:29:10 -08:00
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ws.c	…
wt-status.c	…
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xdiff-interface.c	…
xdiff-interface.h	…
zlib.c	…

README.md

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