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Git with broken hash generation to generate collisions between object IDs. Don't use this! https://undefinedbehavior.de/posts/commit-vandalism/
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23c4319f0d
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René Scharfe 23c4319f0d revision: reallocate TOPO_WALK object flags 
The bit fields in struct object have an unfortunate layout.  Here's what
pahole reports on x86_64 GNU/Linux:

struct object {
	unsigned int               parsed:1;             /*     0: 0  4 */
	unsigned int               type:3;               /*     0: 1  4 */

	/* XXX 28 bits hole, try to pack */

	/* Force alignment to the next boundary: */
	unsigned int               :0;

	unsigned int               flags:29;             /*     4: 0  4 */

	/* XXX 3 bits hole, try to pack */

	struct object_id           oid;                  /*     8    32 */

	/* size: 40, cachelines: 1, members: 4 */
	/* sum members: 32 */
	/* sum bitfield members: 33 bits, bit holes: 2, sum bit holes: 31 bits */
	/* last cacheline: 40 bytes */
};

Notice the 1+3+29=33 bits in bit fields and 28+3=31 bits in holes.

There are holes inside the flags bit field as well -- while some object
flags are used for more than one purpose, 22, 23 and 24 are still free.
Use  23 and 24 instead of 27 and 28 for TOPO_WALK_EXPLORED and
TOPO_WALK_INDEGREE.  This allows us to reduce FLAG_BITS by one so that
all bitfields combined fit into a single 32-bit slot:

struct object {
	unsigned int               parsed:1;             /*     0: 0  4 */
	unsigned int               type:3;               /*     0: 1  4 */
	unsigned int               flags:28;             /*     0: 4  4 */
	struct object_id           oid;                  /*     4    32 */

	/* size: 36, cachelines: 1, members: 4 */
	/* last cacheline: 36 bytes */
};

With this tight packing the size of struct object is reduced by 10%.
Other architectures probably benefit as well.

Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-06-24 09:09:44 -07:00
.github Merge branch 'es/advertise-contribution-doc' 2020-06-17 21:54:06 -07:00
block-sha1 sha1: provide another level of indirection for the SHA-1 functions 2015-11-05 10:35:11 -08:00
builtin Merge branch 'es/worktree-duplicate-paths' 2020-06-22 15:55:03 -07:00
ci Merge branch 'jk/ci-only-on-selected-branches' 2020-05-29 15:12:19 -07:00
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Documentation The fourth batch 2020-06-22 15:55:03 -07:00
ewah Merge branch 'jk/object-filter-with-bitmap' 2020-03-02 15:07:18 -08:00
git-gui Merge https://github.com/prati0100/git-gui 2020-05-21 11:15:04 -07:00
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gitweb Merge branch 'eb/gitweb-more-trailers' 2020-05-01 13:39:56 -07:00
mergetools mergetools: add support for smerge (Sublime Merge) 2019-04-04 18:21:25 +09:00
negotiator Merge branch 'jt/fetch-negotiator-skipping' 2018-08-02 15:30:46 -07:00
perl Fix spelling errors in documentation outside of Documentation/ 2019-11-07 13:42:00 +09:00
po Merge branch 'master' of github.com:ruester/git-po-de 2020-05-30 11:26:53 +08:00
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refs refs: improve documentation for ref iterator 2020-05-20 10:39:02 -07:00
sha1collisiondetection@855827c583
sha1dc Merge branch 'jk/lore-is-the-archive' 2019-12-06 15:09:23 -08:00
sha256 hash: implement and use a context cloning function 2020-02-24 09:33:21 -08:00
t Merge branch 'es/worktree-duplicate-paths' 2020-06-22 15:55:03 -07:00
templates Merge branch 'kw/fsmonitor-watchman-racefix' 2020-02-14 12:54:20 -08:00
trace2 trace2: teach Git to log environment variables 2020-03-23 13:14:53 -07:00
vcs-svn *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
xdiff Merge branch 'rs/xdiff-ignore-ws-w-func-context' 2019-12-16 13:08:32 -08:00
.cirrus.yml CI: add FreeBSD CI support via Cirrus-CI 2019-12-20 12:09:12 -08:00
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.travis.yml ci: fix the jobname of the GETTEXT_POISON job 2020-04-07 22:17:10 -07:00
.tsan-suppressions replace-object: make replace operations thread-safe 2020-01-17 13:52:14 -08:00
abspath.c real_path_if_valid(): remove unsafe API 2020-03-10 11:41:40 -07:00
aclocal.m4
add-interactive.c interactive: refactor code asking the user for interactive input 2020-04-10 10:26:31 -07:00
add-interactive.h built-in add -p: respect the interactive.singlekey config setting 2020-01-15 12:06:17 -08:00
add-patch.c Merge branch 'js/checkout-p-new-file' 2020-06-08 18:06:31 -07:00
advice.c Merge branch 'hw/advise-ng' 2020-03-25 13:57:41 -07:00
advice.h Merge branch 'hw/advise-ng' 2020-03-25 13:57:41 -07:00
alias.c
alias.h headers: normalize the spelling of some header guards 2018-10-18 13:39:35 +09:00
alloc.c
alloc.h object_as_type: initialize commit-graph-related fields of 'struct commit' 2019-01-27 16:55:57 -08:00
apply.c Use OPT_CALLBACK and OPT_CALLBACK_F 2020-04-28 10:47:10 -07:00
apply.h
archive-tar.c parse_config_key(): return subsection len as size_t 2020-04-10 14:44:29 -07:00
archive-zip.c streaming: allow open_istream() to handle any repo 2020-01-31 10:45:39 -08:00
archive.c convert: provide additional metadata to filters 2020-03-16 11:37:02 -07:00
archive.h convert: provide additional metadata to filters 2020-03-16 11:37:02 -07:00
argv-array.c argv-array: add space after while 2019-11-20 13:29:02 +09:00
argv-array.h argv-array: move doc to argv-array.h 2019-11-18 15:21:29 +09:00
attr.c attr: move doc to attr.h 2019-11-18 15:21:28 +09:00
attr.h attr: move doc to attr.h 2019-11-18 15:21:28 +09:00
banned.h banned.h: fix vsprintf()'s ban message 2019-08-26 10:32:45 -07:00
base85.c
bisect.c bisect: stop referring to sha1_array 2020-03-30 10:59:08 -07:00
bisect.h bisect: libify bisect_next_all 2020-02-19 09:37:15 -08:00
blame.c blame: drop unused parameter from maybe_changed_path 2020-04-23 14:37:03 -07:00
blame.h blame: use changed-path Bloom filters 2020-04-16 15:38:06 -07:00
blob.c
blob.h blob: allow lookup_blob to handle arbitrary repositories 2018-06-29 10:43:39 -07:00
bloom.c Merge branch 'ds/line-log-on-bloom' 2020-06-08 18:06:26 -07:00
bloom.h Merge branch 'ds/line-log-on-bloom' 2020-06-08 18:06:26 -07:00
branch.c merge: teach --autostash option 2020-04-10 09:28:02 -07:00
branch.h Merge branch 'nd/switch-and-restore' 2019-07-09 15:25:44 -07:00
bugreport.c bugreport: include user interactive shell 2020-05-12 22:02:20 -07:00
builtin.h Lib-ify prune-packed 2020-03-24 15:04:44 -07:00
bulk-checkin.c
bulk-checkin.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
bundle.c bundle-create: progress output control 2019-11-11 11:46:28 +09:00
bundle.h bundle-create: progress output control 2019-11-11 11:46:28 +09:00
cache-tree.c sha1-file: pass git_hash_algo to hash_object_file() 2020-01-31 10:45:39 -08:00
cache-tree.h
cache.h Merge branch 'jk/oid-array-cleanups' 2020-04-22 13:42:49 -07:00
chdir-notify.c add chdir-notify API 2018-03-30 12:49:57 -07:00
chdir-notify.h add chdir-notify API 2018-03-30 12:49:57 -07:00
check_bindir
check-builtins.sh check-builtins: strip executable suffix $X when enumerating builtins 2015-02-05 12:03:27 -08:00
checkout.c
checkout.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
CODE_OF_CONDUCT.md
color.c color.c: alias RGB colors 8-15 to aixterm colors 2020-02-11 11:19:00 -08:00
color.h
column.c column: use utf8_strnwidth() to strip out ANSI color escapes 2019-10-15 10:54:15 +09:00
column.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
combine-diff.c oid_array: rename source file from sha1-array 2020-03-30 10:59:08 -07:00
command-list.txt Merge branch 'bc/faq' 2020-05-24 19:39:36 -07:00
commit-graph.c Merge branch 'tb/commit-graph-no-check-oids' 2020-06-08 18:06:27 -07:00
commit-graph.h commit-graph: drop COMMIT_GRAPH_WRITE_CHECK_OIDS flag 2020-05-18 12:51:11 -07:00
commit-reach.c commit-graph: fix writing first commit-graph during fetch 2019-10-25 11:19:16 +09:00
commit-reach.h
commit-slab-decl.h commit-slab-decl.h: update include guard 2020-05-18 10:33:00 -07:00
commit-slab-impl.h
commit-slab.h commit-slab: clarify slabname##_peek()'s return value 2020-03-10 11:44:24 -07:00
commit.c Merge branch 'tb/shallow-cleanup' 2020-05-13 12:19:18 -07:00
commit.h shallow: extract a header file for shallow-related functions 2020-04-30 14:19:13 -07:00
common-main.c common-main: delay trace2 initialization 2019-08-06 13:09:01 -07:00
config.c config: reject parsing of files over INT_MAX 2020-04-10 14:58:21 -07:00
config.h git_config_parse_key(): return baselen as size_t 2020-04-10 14:52:22 -07:00
config.mak.dev Merge branch 'bc/sha-256-part-1-of-4' 2020-03-26 17:11:20 -07:00
config.mak.in Merge branch 'jc/remove-export-from-config-mak-in' 2013-04-01 09:00:02 -07:00
config.mak.uname Merge branch 'cb/no-more-gmtime' 2020-05-20 08:33:27 -07:00
configure.ac Merge branch 'dd/sequencer-utf8' 2019-12-01 09:04:36 -08:00
connect.c stateless-connect: send response end packet 2020-05-24 16:26:00 -07:00
connect.h stateless-connect: send response end packet 2020-05-24 16:26:00 -07:00
connected.c Merge branch 'jt/connectivity-check-optim-in-partial-clone' 2020-04-22 13:42:43 -07:00
connected.h connected: always use partial clone optimization 2020-03-29 10:37:44 -07:00
convert.c parse_config_key(): return subsection len as size_t 2020-04-10 14:44:29 -07:00
convert.h convert: provide additional metadata to filters 2020-03-16 11:37:02 -07:00
copy.c copy.c: use error_errno() 2016-05-09 12:29:08 -07:00
COPYING Update COPYING with GPLv2 with new FSF address 2010-01-17 14:29:37 -08:00
credential-cache--daemon.c
credential-cache.c Merge branch 'dl/credential-cache-socket-in-xdg-cache' 2017-08-11 13:27:06 -07:00
credential-store.c Merge branch 'cb/credential-store-ignore-bogus-lines' 2020-05-08 14:25:01 -07:00
credential.c Merge branch 'js/partial-urlmatch' 2020-05-05 14:54:30 -07:00
credential.h credential: correct order of parameters for credential_match 2020-05-04 22:56:33 -07:00
csum-file.c hash: implement and use a context cloning function 2020-02-24 09:33:21 -08:00
csum-file.h csum-file: introduce hashfile_total() 2020-01-23 10:51:50 -08:00
ctype.c
daemon.c Fix spelling errors in code comments 2019-11-10 16:00:54 +09:00
date.c date.c: allow compact version of ISO-8601 datetime 2020-04-24 14:06:09 -07:00
decorate.c
decorate.h
delta-islands.c oid_array: rename source file from sha1-array 2020-03-30 10:59:08 -07:00
delta-islands.h
delta.h
detect-compiler
diff-delta.c diff-delta: set size out-parameter to 0 for NULL delta 2019-09-06 11:03:39 -07:00
diff-lib.c mark_fsmonitor_valid(): mark the index as changed if needed 2019-05-28 12:43:43 -07:00
diff-no-index.c
diff.c Merge branch 'jk/diff-memuse-optim-with-stat-unmatch' 2020-06-17 21:54:00 -07:00
diff.h diff: halt tree-diff early after max_changes 2020-03-30 09:59:53 -07:00
diffcore-break.c diff: restrict when prefetching occurs 2020-04-07 16:09:29 -07:00
diffcore-delta.c
diffcore-order.c wildmatch: remove unused wildopts parameter 2017-06-23 18:27:07 -07:00
diffcore-pickaxe.c Merge branch 'tb/log-G-binary' 2019-01-14 15:29:31 -08:00
diffcore-rename.c diff: restrict when prefetching occurs 2020-04-07 16:09:29 -07:00
diffcore.h diff: restrict when prefetching occurs 2020-04-07 16:09:29 -07:00
dir-iterator.c dir-iterator: add flags parameter to dir_iterator_begin 2019-07-11 13:52:15 -07:00
dir-iterator.h
dir.c Merge branch 'en/do-match-pathspec-fix' 2020-06-17 21:54:03 -07:00
dir.h Merge branch 'ds/sparse-cone' 2019-12-25 11:21:58 -08:00
editor.c real_path: remove unsafe API 2020-03-10 11:41:40 -07:00
entry.c convert: provide additional metadata to filters 2020-03-16 11:37:02 -07:00
environment.c Merge branch 'tb/shallow-cleanup' 2020-05-13 12:19:18 -07:00
exec-cmd.c
exec-cmd.h *.[ch]: remove extern from function declarations using sed 2019-05-05 15:20:08 +09:00
fast-import.c Merge branch 'en/fast-import-looser-date' 2020-06-02 13:35:05 -07:00
fetch-negotiator.c
fetch-negotiator.h
fetch-pack.c stateless-connect: send response end packet 2020-05-24 16:26:00 -07:00
fetch-pack.h fetch_pack(): drop unused parameters 2019-03-20 18:34:09 +09:00
fmt-merge-msg.c Merge branch 'dd/sparse-fixes' 2020-05-01 13:39:56 -07:00
fmt-merge-msg.h Lib-ify fmt-merge-msg 2020-03-24 15:04:43 -07:00
fsck.c Merge branch 'rs/fsck-duplicate-names-in-trees' 2020-06-08 18:06:29 -07:00
fsck.h fsck: only provide oid/type in fsck_error callback 2019-10-28 14:05:18 +09:00
fsmonitor.c fsmonitor: handle version 2 of the hooks that will use opaque token 2020-01-13 14:58:43 -08:00
fsmonitor.h mark_fsmonitor_valid(): mark the index as changed if needed 2019-05-28 12:43:43 -07:00
fuzz-commit-graph.c fuzz-commit-graph: properly free graph struct 2020-06-08 10:02:29 -07:00
fuzz-pack-headers.c fuzz: add basic fuzz testing target. 2018-10-15 14:28:59 +09:00
fuzz-pack-idx.c fuzz: add fuzz testing for packfile indices. 2018-10-15 14:29:03 +09:00
generate-cmdlist.sh help: move list_config_help to builtin/help 2020-04-16 15:22:16 -07:00
generate-configlist.sh help: move list_config_help to builtin/help 2020-04-16 15:22:16 -07:00
gettext.c Merge branch 'ab/test-env' 2019-07-25 13:59:20 -07:00
gettext.h *.[ch]: remove extern from function declarations using spatch 2019-05-05 15:20:06 +09:00
git-add--interactive.perl checkout -p: handle new files correctly 2020-05-27 14:50:20 -07:00
git-archimport.perl
git-bisect.sh bisect: avoid tailing CR characters from revision in replay 2020-05-20 10:13:19 -07:00
git-compat-util.h Merge branch 'cb/no-more-gmtime' 2020-05-20 08:33:27 -07:00
git-cvsexportcommit.perl cvsexportcommit: force crlf translation 2019-05-07 18:23:27 +09:00
git-cvsimport.perl Fix spelling errors in messages shown to users 2019-11-10 16:00:54 +09:00
git-cvsserver.perl
git-difftool--helper.sh
git-filter-branch.sh Recommend git-filter-repo instead of git-filter-branch 2019-09-05 13:01:48 -07:00
git-instaweb.sh
git-merge-octopus.sh
git-merge-one-file.sh
git-merge-resolve.sh
git-mergetool--lib.sh
git-mergetool.sh mergetool: use shell variable magic instead of awk 2019-06-12 13:20:56 -07:00
git-p4.py Merge branch 'bk/p4-prepare-p4-only-fix' 2020-06-02 13:35:01 -07:00
git-parse-remote.sh
git-quiltimport.sh
git-rebase--preserve-merges.sh
git-request-pull.sh
git-send-email.perl Fix spelling errors in code comments 2019-11-10 16:00:54 +09:00
git-sh-i18n.sh
git-sh-setup.sh stash: optionally use the scripted version again 2019-03-07 09:41:40 +09:00
git-submodule.sh submodule: port subcommand 'set-url' from shell to C 2020-05-08 09:17:55 -07:00
git-svn.perl git svn: stop using rebase --preserve-merges 2019-11-23 09:49:23 +09:00
GIT-VERSION-GEN The third batch 2020-06-17 21:54:06 -07:00
git-web--browse.sh git-web--browse.sh: use the $( ... ) construct for command substitution 2014-04-23 15:17:02 -07:00
git.c Merge branch 'tb/shallow-cleanup' 2020-05-13 12:19:18 -07:00
git.rc
gpg-interface.c gpg-interface: prefer check_signature() for GPG verification 2020-03-15 09:46:28 -07:00
gpg-interface.h gpg-interface: prefer check_signature() for GPG verification 2020-03-15 09:46:28 -07:00
graph.c graph.c: limit linkage of internal variable 2020-04-27 11:21:25 -07:00
graph.h graph: move doc to graph.h and graph.c 2019-11-18 15:21:28 +09:00
grep.c grep: replace grep_read_mutex by internal obj read lock 2020-01-17 13:52:14 -08:00
grep.h grep: replace grep_read_mutex by internal obj read lock 2020-01-17 13:52:14 -08:00
hash.h hash: implement and use a context cloning function 2020-02-24 09:33:21 -08:00
hashmap.c Fix spelling errors in code comments 2019-11-10 16:00:54 +09:00
hashmap.h Merge branch 'en/doc-typofix' 2019-12-01 09:04:35 -08:00
help.c help: add shell-path to --build-options 2020-05-12 22:02:17 -07:00
help.h bugreport: gather git version and build info 2020-04-16 15:23:42 -07:00
hex.c hex: add functions to parse hex object IDs in any algorithm 2020-02-24 09:33:21 -08:00
http-backend.c http-backend: allow 64-character hex names 2019-04-01 11:57:38 +09:00
http-fetch.c
http-push.c http-push: simplify deleting a list item 2019-10-15 10:53:50 +09:00
http-walker.c Merge branch 'bc/hash-transition-16' 2019-04-25 16:41:17 +09:00
http.c http: redact all cookies, teach GIT_TRACE_REDACT=0 2020-06-05 15:05:04 -07:00
http.h http, imap-send: stop using CURLOPT_VERBOSE 2020-05-11 11:18:01 -07:00
ident.c Merge branch 'ps/stash-in-c' 2019-04-22 11:14:43 +09:00
imap-send.c http, imap-send: stop using CURLOPT_VERBOSE 2020-05-11 11:18:01 -07:00
INSTALL INSTALL: drop support for docbook-xsl before 1.74 2020-03-29 09:25:38 -07:00
interdiff.c interdiff: teach show_interdiff() to indent interdiff 2018-07-23 12:50:06 -07:00
interdiff.h
iterator.h refs: introduce an iterator interface 2016-06-20 11:38:20 -07:00
json-writer.c
json-writer.h json-writer.h: add missing include (hdr-check) 2018-09-20 11:50:00 -07:00
khash.h hashmap: convert sha1hash() to oidhash() 2019-06-20 10:44:22 -07:00
kwset.c Merge branch 'js/gcc-8-and-9' 2019-07-09 15:25:41 -07:00
kwset.h kset.h, tar.h: add missing header guard to prevent multiple inclusion 2019-11-07 20:12:04 +09:00
levenshtein.c convert trivial cases to ALLOC_ARRAY 2016-02-22 14:51:09 -08:00
levenshtein.h
LGPL-2.1 provide a copy of the LGPLv2.1 2011-05-19 18:23:17 -07:00
line-log.c Merge branch 'ds/line-log-on-bloom' 2020-06-08 18:06:26 -07:00
line-log.h line-log: more responsive, incremental 'git log -L' 2020-05-11 09:33:56 -07:00
line-range.c
line-range.h line-range.c: remove implicit dependency on the_index 2018-09-21 09:51:18 -07:00
linear-assignment.c linear-assignment: fix potential out of bounds memory access 2018-09-14 09:10:26 -07:00
linear-assignment.h
list-objects-filter-options.c
list-objects-filter-options.h Use OPT_CALLBACK and OPT_CALLBACK_F 2020-04-28 10:47:10 -07:00
list-objects-filter.c list-objects-filter: treat NULL filter_options as "disabled" 2020-05-04 21:57:58 -07:00
list-objects-filter.h list-objects-filter: implement composite filters 2019-06-28 08:41:53 -07:00
list-objects.c Merge branch 'jk/list-objects-optim-wo-trees' 2019-10-07 11:32:56 +09:00
list-objects.h
list.h tempfile: use list.h for linked list 2017-09-06 17:19:54 +09:00
ll-merge.c parse_config_key(): return subsection len as size_t 2020-04-10 14:44:29 -07:00
ll-merge.h merge: move doc to ll-merge.h 2019-11-18 15:21:28 +09:00
lockfile.c lockfile.c: introduce 'hold_lock_file_for_update_mode' 2020-04-27 11:27:36 -07:00
lockfile.h lockfile.c: introduce 'hold_lock_file_for_update_mode' 2020-04-27 11:27:36 -07:00
log-tree.c Merge branch 'ds/log-exclude-decoration-config' 2020-04-28 15:50:08 -07:00
log-tree.h log: add log.excludeDecoration config option 2020-04-16 11:05:48 -07:00
ls-refs.c upload-pack: handle unexpected delim packets 2020-03-27 12:18:48 -07:00
ls-refs.h
mailinfo.c mailinfo: disallow NUL character in mail's header 2020-04-22 14:01:03 -07:00
mailinfo.h
mailmap.c
mailmap.h
Makefile Merge branch 'lo/sparse-universal-zero-init' 2020-06-02 13:35:04 -07:00
match-trees.c
mem-pool.c
mem-pool.h block alloc: add validations around cache_entry lifecyle 2018-07-03 10:58:27 -07:00
merge-blobs.c
merge-blobs.h
merge-recursive.c merge-recursive: fix rename/rename(1to2) for working tree with a binary 2020-05-14 12:14:19 -07:00
merge-recursive.h
merge.c builtin/checkout: compute checkout metadata for checkouts 2020-03-16 11:37:02 -07:00
mergesort.c
mergesort.h
midx.c multi-pack-index: respect repack.packKeptObjects=false 2020-05-10 09:50:55 -07:00
midx.h Merge branch 'ds/multi-pack-index' 2020-05-01 13:39:55 -07:00
name-hash.c Merge branch 'en/doc-typofix' 2019-12-01 09:04:35 -08:00
notes-cache.c notes-cache.c: remove the_repository references 2018-11-12 14:50:06 +09:00
notes-cache.h notes-cache.c: remove the_repository references 2018-11-12 14:50:06 +09:00
notes-merge.c notes-merge: switch to use the_hash_algo 2019-04-01 11:57:37 +09:00
notes-merge.h notes-merge.c: remove implicit dependency on the_index 2018-11-12 14:50:05 +09:00
notes-utils.c strbuf: add and use strbuf_insertstr() 2020-02-10 09:04:45 -08:00
notes-utils.h notes-utils.c: remove the_repository references 2019-01-14 12:13:04 -08:00
notes.c Merge branch 'jh/notes-fanout-fix' into maint 2020-03-17 15:02:22 -07:00
notes.h Merge branch 'dl/format-patch-notes-config-fixup' 2019-12-25 11:21:58 -08:00
object-store.h oid_array: rename source file from sha1-array 2020-03-30 10:59:08 -07:00
object.c Merge branch 'jk/object-filter-with-bitmap' 2020-03-02 15:07:18 -08:00
object.h revision: reallocate TOPO_WALK object flags 2020-06-24 09:09:44 -07:00
oid-array.c oid_array: rename source file from sha1-array 2020-03-30 10:59:08 -07:00
oid-array.h oid_array: rename source file from sha1-array 2020-03-30 10:59:08 -07:00
oidmap.c hashmap: introduce hashmap_free_entries 2019-10-07 10:20:11 +09:00
oidmap.h
oidset.c oidset: introduce 'oidset_size' 2020-04-15 09:20:29 -07:00
oidset.h Merge branch 'tb/commit-graph-split-strategy' 2020-05-01 13:39:52 -07:00
pack-bitmap-write.c
pack-bitmap.c pack-bitmap: pass object filter to fill-in traversal 2020-05-04 21:57:58 -07:00
pack-bitmap.h Merge branch 'jk/object-filter-with-bitmap' 2020-03-02 15:07:18 -08:00
pack-check.c pack-check: push oid lookup into loop 2020-02-24 12:55:53 -08:00
pack-objects.c pack-objects: convert oe_set_delta_ext() to use object_id 2020-02-24 12:55:52 -08:00
pack-objects.h pack-objects: convert oe_set_delta_ext() to use object_id 2020-02-24 12:55:52 -08:00
pack-revindex.c
pack-revindex.h
pack-write.c pack-write: use hash_to_hex when writing checksums 2019-08-19 15:04:58 -07:00
pack.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
packfile.c packfile: drop nth_packed_object_sha1() 2020-02-24 12:55:53 -08:00
packfile.h packfile: drop nth_packed_object_sha1() 2020-02-24 12:55:53 -08:00
pager.c pager: add a helper function to clear the last line in the terminal 2019-06-24 13:38:46 -07:00
parse-options-cb.c oid_array: rename source file from sha1-array 2020-03-30 10:59:08 -07:00
parse-options.c parse-options: teach "git cmd -h" to show alias as alias 2020-03-16 14:27:07 -07:00
parse-options.h merge: teach --autostash option 2020-04-10 09:28:02 -07:00
patch-delta.c
patch-ids.c
patch-ids.h
path.c Merge branch 'dl/merge-autostash' 2020-04-29 16:15:27 -07:00
path.h merge: teach --autostash option 2020-04-10 09:28:02 -07:00
pathspec.c prefix_path: show gitdir if worktree unavailable 2020-03-15 09:35:46 -07:00
pathspec.h Merge branch 'hw/doc-in-header' 2019-12-16 13:08:39 -08:00
pkt-line.c pkt-line: define PACKET_READ_RESPONSE_END 2020-05-24 16:26:00 -07:00
pkt-line.h pkt-line: define PACKET_READ_RESPONSE_END 2020-05-24 16:26:00 -07:00
preload-index.c mark_fsmonitor_valid(): mark the index as changed if needed 2019-05-28 12:43:43 -07:00
pretty.c format-patch: teach --no-encode-email-headers 2020-04-07 22:37:18 -07:00
pretty.h format-patch: teach --no-encode-email-headers 2020-04-07 22:37:18 -07:00
prio-queue.c
prio-queue.h *.[ch]: remove extern from function declarations using spatch 2019-05-05 15:20:06 +09:00
progress.c progress: call trace2_region_leave() only after calling _enter() 2020-05-15 09:41:30 -07:00
progress.h progress.c: silence cgcc suggestion about internal linkage 2020-04-27 11:21:28 -07:00
promisor-remote.c Merge branch 'jt/avoid-prefetch-when-able-in-diff' 2020-04-28 15:50:04 -07:00
promisor-remote.h promisor-remote: accept 0 as oid_nr in function 2020-04-02 12:42:32 -07:00
prompt.c interactive: explicitly fflush stdout before expecting input 2020-04-10 10:27:16 -07:00
prompt.h interactive: refactor code asking the user for interactive input 2020-04-10 10:26:31 -07:00
protocol.c config: let feature.experimental imply protocol.version=2 2020-05-21 09:31:42 -07:00
protocol.h
prune-packed.c Lib-ify prune-packed 2020-03-24 15:04:44 -07:00
prune-packed.h Lib-ify prune-packed 2020-03-24 15:04:44 -07:00
quote.c quote: use isalnum() to check for alphanumeric characters 2020-02-24 09:30:29 -08:00
quote.h quote: add sq_append_quote_argv_pretty() 2019-08-09 10:48:02 -07:00
range-diff.c range-diff: avoid negative string precision 2020-04-15 18:32:48 -07:00
range-diff.h Merge branch 'dl/range-diff-with-notes' 2019-12-16 13:08:46 -08:00
reachable.c pack-bitmap: basic noop bitmap filter infrastructure 2020-02-14 10:46:22 -08:00
reachable.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
read-cache.c Merge branch 'js/mingw-loosen-overstrict-tree-entry-checks' 2020-01-10 14:45:27 -08:00
README.md ci: retire the Azure Pipelines definition 2020-04-10 10:30:40 -07:00
rebase-interactive.c Merge branch 'rt/format-zero-length-fix' 2020-03-09 11:21:21 -07:00
rebase-interactive.h Merge branch 'en/rebase-backend' 2020-03-02 15:07:19 -08:00
rebase.c pull --rebase/remote rename: document and honor single-letter abbreviations rebase types 2020-02-10 10:52:10 -08:00
rebase.h pull --rebase/remote rename: document and honor single-letter abbreviations rebase types 2020-02-10 10:52:10 -08:00
ref-filter.c Merge branch 'jk/for-each-ref-multi-key-sort-fix' 2020-05-08 14:25:04 -07:00
ref-filter.h Merge branch 'jk/for-each-ref-multi-key-sort-fix' 2020-05-08 14:25:04 -07:00
reflog-walk.c
reflog-walk.h
refs.c Merge branch 'ds/log-exclude-decoration-config' 2020-04-28 15:50:08 -07:00
refs.h refs.h: clarify reflog iteration order 2020-05-20 10:39:01 -07:00
refspec.c
refspec.h remote: move doc to remote.h and refspec.h 2019-11-18 15:21:28 +09:00
RelNotes Start the post 2.27 cycle 2020-06-02 13:35:05 -07:00
remote-curl.c stateless-connect: send response end packet 2020-05-24 16:26:00 -07:00
remote-testsvn.c Merge branch 'sb/object-store-grafts' 2018-07-18 12:20:28 -07:00
remote.c parse_config_key(): return subsection len as size_t 2020-04-10 14:44:29 -07:00
remote.h stateless-connect: send response end packet 2020-05-24 16:26:00 -07:00
replace-object.c replace-object: make replace operations thread-safe 2020-01-17 13:52:14 -08:00
replace-object.h replace-object: make replace operations thread-safe 2020-01-17 13:52:14 -08:00
repo-settings.c config: set pack.useSparse=true by default 2020-03-20 14:22:31 -07:00
repository.c repository: require a build flag to use SHA-256 2020-02-24 09:33:21 -08:00
repository.h Merge branch 'jc/missing-ref-store-fix' 2020-04-22 13:42:55 -07:00
rerere.c Fix spelling errors in code comments 2019-11-10 16:00:54 +09:00
rerere.h rerere.c: remove the_repository references 2018-11-12 14:50:06 +09:00
reset.c Merge branch 'dl/merge-autostash' 2020-04-29 16:15:27 -07:00
reset.h reset: extract reset_head() from rebase 2020-04-10 09:28:02 -07:00
resolve-undo.c resolve-undo.c: use the right index instead of the_index 2018-08-13 14:14:44 -07:00
resolve-undo.h
revision.c Merge branch 'ds/line-log-on-bloom' 2020-06-08 18:06:26 -07:00
revision.h revision: reallocate TOPO_WALK object flags 2020-06-24 09:09:44 -07:00
run-command.c Merge branch 'jc/auto-gc-quiet' 2020-05-13 12:19:19 -07:00
run-command.h auto-gc: extract a reusable helper from "git fetch" 2020-05-07 12:24:33 -07:00
send-pack.c Merge branch 'tb/shallow-cleanup' 2020-05-13 12:19:18 -07:00
send-pack.h
sequencer.c Merge branch 'js/rebase-autosquash-double-fixup-fix' 2020-05-14 14:39:43 -07:00
sequencer.h Merge branch 'dl/merge-autostash' 2020-04-29 16:15:27 -07:00
serve.c pkt-line: define PACKET_READ_RESPONSE_END 2020-05-24 16:26:00 -07:00
serve.h
server-info.c Fix spelling errors in code comments 2019-11-10 16:00:54 +09:00
setup.c Merge branch 'bc/sha-256-part-1-of-4' 2020-03-26 17:11:20 -07:00
sh-i18n--envsubst.c
sha1-file.c Merge branch 'lr/freshen-file-fix' 2020-04-28 15:49:56 -07:00
sha1-lookup.c Merge branch 'js/azure-pipelines-msvc' 2019-10-15 13:48:00 +09:00
sha1-lookup.h
sha1-name.c Merge branch 'jc/missing-ref-store-fix' 2020-04-22 13:42:55 -07:00
sha1dc_git.c hex: drop sha1_to_hex() 2019-11-13 10:09:10 +09:00
sha1dc_git.h
shallow.c Merge branch 'tb/shallow-cleanup' 2020-05-13 12:19:18 -07:00
shallow.h shallow: use struct 'shallow_lock' for additional safety 2020-04-30 14:19:13 -07:00
shell.c interactive: refactor code asking the user for interactive input 2020-04-10 10:26:31 -07:00
shortlog.h
sideband.c Merge branch 'jt/fetch-v2-sideband' 2019-02-05 14:26:11 -08:00
sideband.h
sigchain.c
sigchain.h sigchain: move doc to sigchain.h 2019-11-18 15:21:29 +09:00
split-index.c Merge branch 'nd/split-index-null-base-fix' 2019-03-07 09:59:56 +09:00
split-index.h
stable-qsort.c Move git_sort(), a stable sort, into into libgit.a 2019-10-02 14:44:51 +09:00
strbuf.c Merge branch 'bc/wildcard-credential' 2020-05-05 14:54:26 -07:00
strbuf.h Merge branch 'bc/wildcard-credential' 2020-05-05 14:54:26 -07:00
streaming.c streaming: allow open_istream() to handle any repo 2020-01-31 10:45:39 -08:00
streaming.h streaming: allow open_istream() to handle any repo 2020-01-31 10:45:39 -08:00
string-list.c
string-list.h Merge branch 'en/string-list-can-be-custom-sorted' 2020-01-22 15:07:31 -08:00
sub-process.c hashmap: remove type arg from hashmap_{get,put,remove}_entry 2019-10-07 10:20:12 +09:00
sub-process.h hashmap_entry: remove first member requirement from docs 2019-10-07 10:20:12 +09:00
submodule-config.c parse_config_key(): return subsection len as size_t 2020-04-10 14:44:29 -07:00
submodule-config.h submodule-config: add skip_if_read option to repo_read_gitmodules() 2020-01-17 13:52:14 -08:00
submodule.c Merge branch 'jk/oid-array-cleanups' 2020-04-22 13:42:49 -07:00
submodule.h get_superproject_working_tree(): return strbuf 2020-03-10 11:41:40 -07:00
symlinks.c Indent code with TABs 2018-12-09 12:37:32 +09:00
tag.c commit, tag: don't set parsed bit for parse failures 2019-10-28 14:04:49 +09:00
tag.h tag: factor out get_tagged_oid() 2019-09-05 14:10:18 -07:00
tar.h kset.h, tar.h: add missing header guard to prevent multiple inclusion 2019-11-07 20:12:04 +09:00
tempfile.c tempfile.c: introduce 'create_tempfile_mode' 2020-04-27 11:27:35 -07:00
tempfile.h tempfile.c: introduce 'create_tempfile_mode' 2020-04-27 11:27:35 -07:00
thread-utils.c
thread-utils.h thread-utils: macros to unconditionally compile pthreads API 2018-10-29 11:22:48 +09:00
tmp-objdir.c Replace all die("BUG: ...") calls by BUG() ones 2018-05-06 19:06:13 +09:00
tmp-objdir.h
trace2.c trace2: teach Git to log environment variables 2020-03-23 13:14:53 -07:00
trace2.h trace2: teach Git to log environment variables 2020-03-23 13:14:53 -07:00
trace.c http, imap-send: stop using CURLOPT_VERBOSE 2020-05-11 11:18:01 -07:00
trace.h http, imap-send: stop using CURLOPT_VERBOSE 2020-05-11 11:18:01 -07:00
trailer.c pretty: add support for separator option in %(trailers) 2019-01-29 10:03:32 -08:00
trailer.h
transport-helper.c transport-helper: new method reject_atomic_push() 2020-04-17 12:16:32 -07:00
transport-internal.h transport: teach all vtables to allow fetch first 2019-08-22 14:20:39 -07:00
transport.c stateless-connect: send response end packet 2020-05-24 16:26:00 -07:00
transport.h transport-helper: new method reject_atomic_push() 2020-04-17 12:16:32 -07:00
tree-diff.c diff: halt tree-diff early after max_changes 2020-03-30 09:59:53 -07:00
tree-walk.c tree-walk.c: break circular dependency with unpack-trees 2020-02-04 10:32:15 -08:00
tree-walk.h tree-walk.c: break circular dependency with unpack-trees 2020-02-04 10:32:15 -08:00
tree.c
tree.h tree.c: make read_tree*() take 'struct repository *' 2018-11-19 10:50:33 +09:00
unicode-width.h unicode: update the width tables to Unicode 13.0 2020-03-17 15:06:37 -07:00
unimplemented.sh unimplemented.sh: use the $( ... ) construct for command substitution 2015-12-27 15:33:13 -08:00
unix-socket.c Merge branch 'rs/strbuf-getcwd' 2014-09-02 13:28:44 -07:00
unix-socket.h
unpack-trees.c Merge branch 'en/sparse-checkout' 2020-05-20 08:33:29 -07:00
unpack-trees.h Merge branch 'en/sparse-checkout' 2020-04-29 16:15:30 -07:00
upload-pack.c upload-pack: move pack_objects_hook to upload_pack_data 2020-06-04 10:58:27 -07:00
upload-pack.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
url.c Fix spelling errors in code comments 2019-11-10 16:00:54 +09:00
url.h list-objects-filter: implement composite filters 2019-06-28 08:41:53 -07:00
urlmatch.c credential: handle credential.<partial-URL>.<key> again 2020-04-24 15:53:46 -07:00
urlmatch.h credential: handle credential.<partial-URL>.<key> again 2020-04-24 15:53:46 -07:00
usage.c vreportf(): avoid relying on stdio buffering 2019-11-02 15:20:21 +09:00
userdiff.c Merge branch 'ah/userdiff-markdown' 2020-05-08 14:25:01 -07:00
userdiff.h
utf8.c utf8: use skip_iprefix() in same_utf_encoding() 2019-11-10 16:04:36 +09:00
utf8.h *.[ch]: remove extern from function declarations using spatch 2019-05-05 15:20:06 +09:00
varint.c
varint.h
version.c
version.h version --build-options: report commit, too, if possible 2017-12-14 22:53:04 -08:00
versioncmp.c
walker.c Merge branch 'rs/show-progress-in-dumb-http-fetch' 2020-03-09 11:21:21 -07:00
walker.h remote-curl: show progress for fetches over dumb HTTP 2020-03-03 13:15:40 -08:00
wildmatch.c
wildmatch.h wildmatch: change behavior of "foo**bar" in WM_PATHNAME mode 2018-10-29 13:19:22 +09:00
worktree.c Merge branch 'bc/sha-256-part-1-of-4' 2020-03-26 17:11:20 -07:00
worktree.h worktree: add utility to find worktree by pathname 2020-02-24 13:04:30 -08:00
wrap-for-bin.sh
wrapper.c Merge branch 'dl/wrapper-fix-indentation' 2020-04-22 13:42:47 -07:00
write-or-die.c write_or_die.c: rename to use dashes in file name 2018-04-11 18:11:00 +09:00
ws.c Merge branch 'nd/the-index' 2018-10-19 13:34:02 +09:00
wt-status.c Fix error-prone fill_directory() API; make it only return matches 2020-04-01 11:11:31 -07:00
wt-status.h commit: give correct advice for empty commit during a rebase 2019-12-06 09:32:02 -08:00
xdiff-interface.c xdiff: avoid computing non-zero offset from NULL pointer 2020-01-28 23:13:25 -08:00
xdiff-interface.h Fix spelling errors in code comments 2019-11-10 16:00:54 +09:00
zlib.c Replace all die("BUG: ...") calls by BUG() ones 2018-05-06 19:06:13 +09:00

README.md

Build status

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