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Jeff King 3a37876b5d pack-objects: drop packlist index_pos optimization
Once upon a time, the code to add an object to our packing list in
pack-objects all lived in a single function. It computed the position
within the hash table once, then used it to check if the object was
already present, and if not, to add it.

Later, in 2834bc27c1 (pack-objects: refactor the packing list,
2013-10-24), this was split into two functions: packlist_find() and
packlist_alloc(). We ended up with an "index_pos" variable that gets
passed through several functions to make it from one to the other.

The resulting code is rather confusing to follow. The "index_pos"
variable is sometimes undefined, if we don't yet have a hash table. This
works out in practice because in that case packlist_alloc() won't use it
at all, since it will have to create/grow the hash table. But it's hard
to verify that, and it does cause gcc 9.2.1's -Wmaybe-uninitialized to
complain when compiled with "-flto -O3" (rightfully, since we do pass
the uninitialized value as a function parameter, even if nobody ends up
using it).

All of this is to save computing the hash index again when we're
inserting into the hash table, which I found doesn't make a measurable
difference in the program runtime (which is not surprising, since we're
doing all kinds of other heavyweight things for each object).

Let's just drop this index_pos variable entirely, simplifying the code
(and pleasing the compiler).

We might be better still refactoring this custom hash table to use one
of our existing implementations (an oidmap, or a kh_oid_map). I stopped
short of that here, but this would be the likely first step towards that
anyway.

Reported-by: Stephan Beyer <s-beyer@gmx.net>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-09-06 11:03:42 -07:00
.github
block-sha1 sha1: provide another level of indirection for the SHA-1 functions 2015-11-05 10:35:11 -08:00
builtin pack-objects: drop packlist index_pos optimization 2019-09-06 11:03:42 -07:00
ci Merge branch 'sg/travis-gcc-4.8' 2019-07-29 12:39:13 -07:00
compat Merge branch 'rs/nedalloc-fixlets' 2019-08-22 12:34:11 -07:00
contrib Merge branch 'js/visual-studio' 2019-08-02 13:12:02 -07:00
Documentation First batch after Git 2.23 2019-08-22 12:41:04 -07:00
ewah ewok_rlw.h: add missing 'inline' to function definition 2018-10-29 10:14:19 +09:00
git-gui Merge branch 'cb/git-gui-ttk-style' 2018-04-25 13:28:49 +09:00
gitk-git
gitweb gitweb: make hash size independent 2019-04-01 11:57:39 +09:00
mergetools mergetools: add support for smerge (Sublime Merge) 2019-04-04 18:21:25 +09:00
negotiator
perl
po l10n: zh_CN: for git v2.23.0 l10n round 1~2 2019-08-16 16:59:17 +08:00
ppc *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
refs Merge branch 'sc/pack-refs-deletion-racefix' 2019-08-22 12:34:10 -07:00
sha1collisiondetection@855827c583 sha1dc: update from upstream 2019-05-14 16:45:01 +09:00
sha1dc sha1dc: update from upstream 2019-05-14 16:45:01 +09:00
sha256
t test-read-cache: drop namelen variable 2019-09-06 11:03:39 -07:00
templates Update shell scripts to compute empty tree object ID 2018-05-02 13:59:53 +09:00
trace2 Merge branch 'sg/trace2-rename' 2019-05-30 10:50:45 -07:00
vcs-svn *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
xdiff Merge branch 'cb/xdiff-no-system-includes-in-dot-c' 2019-07-31 14:38:56 -07:00
.clang-format clang-format: use git grep to generate the ForEachMacros list 2019-06-04 14:50:40 -07:00
.editorconfig
.gitattributes Mark .bat files as requiring CR/LF endings 2019-06-20 14:03:05 -07:00
.gitignore Merge branch 'js/visual-studio' 2019-08-02 13:12:02 -07:00
.gitmodules
.mailmap .mailmap: update email address of Philip Oakley 2019-08-11 15:07:51 -07:00
.travis.yml travis-ci: build with GCC 4.8 as well 2019-07-19 14:06:01 -07:00
.tsan-suppressions ThreadSanitizer: add suppressions 2017-08-23 10:38:56 -07:00
abspath.c real_path: clarify return value ownership 2017-09-27 09:13:47 +09:00
aclocal.m4
advice.c Merge branch 'ra/cherry-pick-revert-skip' 2019-07-19 11:30:21 -07:00
advice.h Merge branch 'ra/cherry-pick-revert-skip' 2019-07-19 11:30:21 -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
apply.c apply: make parse_git_diff_header public 2019-07-11 14:29:27 -07:00
apply.h apply: make parse_git_diff_header public 2019-07-11 14:29:27 -07:00
archive-tar.c
archive-zip.c archive: convert struct archiver_args to object_id 2019-04-01 11:57:39 +09:00
archive.c tree-walk.c: remove the_repo from get_tree_entry() 2019-06-27 12:45:17 -07:00
archive.h Merge branch 'dl/no-extern-in-func-decl' 2019-05-13 23:50:32 +09:00
argv-array.c Merge branch 'ma/unpack-trees-free-msgs' 2018-05-30 21:51:29 +09:00
argv-array.h
attr.c Merge branch 'rd/attr.c-comment-typofix' 2019-03-11 16:16:24 +09:00
attr.h Make git_check_attr() a void function 2018-09-12 15:15:34 -07:00
azure-pipelines.yml ci: parallelize testing on Windows 2019-01-29 09:26:47 -08:00
banned.h banned.h: mark strncat() as banned 2019-01-02 10:19:05 -08:00
base85.c
bisect.c bisect: make diff-tree output prettier 2019-03-01 07:31:38 +09:00
bisect.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
blame.c Merge branch 'nd/tree-walk-with-repo' 2019-07-19 11:30:21 -07:00
blame.h Merge branch 'br/blame-ignore' 2019-07-19 11:30:20 -07:00
blob.c object: convert create_object() to use object_id 2019-06-20 10:20:51 -07:00
blob.h
branch.c Merge branch 'nd/switch-and-restore' 2019-07-09 15:25:44 -07:00
branch.h Merge branch 'nd/switch-and-restore' 2019-07-09 15:25:44 -07:00
builtin.h Merge branch 'ab/test-env' 2019-07-25 13:59:20 -07:00
bulk-checkin.c bulk-checkin: zero-initialize hashfile_checkpoint 2019-09-06 11:03:39 -07:00
bulk-checkin.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
bundle.c bundle verify: error out if called without an object database 2019-05-28 13:04:14 -07:00
bundle.h create_bundle(): drop unused "header" parameter 2019-01-24 12:35:44 -08:00
cache-tree.c Merge branch 'jk/tree-walk-overflow' 2019-08-22 12:34:10 -07:00
cache-tree.h cache.h: flip NO_THE_INDEX_COMPATIBILITY_MACROS switch 2019-01-24 11:55:06 -08:00
cache.h Merge branch 'nd/tree-walk-with-repo' 2019-07-19 11:30:21 -07:00
chdir-notify.c
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 & worktree: introduce checkout.defaultRemote 2018-06-11 09:41:02 -07:00
checkout.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
color.c color: protect against out-of-bounds reads and writes 2018-08-03 08:52:05 -07:00
color.h
column.c
column.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
combine-diff.c
command-list.txt help: move git-diff and git-reset to different groups 2019-05-07 13:04:48 +09:00
commit-graph.c Merge branch 'sg/commit-graph-validate' 2019-08-22 12:34:11 -07:00
commit-graph.h commit-graph: error out on invalid commit oids in 'write --stdin-commits' 2019-08-05 14:33:39 -07:00
commit-reach.c
commit-reach.h Merge branch 'sb/more-repo-in-api' 2019-02-05 14:26:09 -08:00
commit-slab-decl.h commit-slab: support shared commit-slab 2018-05-21 14:07:19 +09:00
commit-slab-impl.h commit-slabs: move MAYBE_UNUSED out 2018-10-24 14:52:50 +09:00
commit-slab.h commit-slab: support shared commit-slab 2018-05-21 14:07:19 +09:00
commit.c Merge branch 'ds/close-object-store' into maint 2019-07-29 12:38:22 -07:00
commit.h Merge branch 'dl/no-extern-in-func-decl' 2019-05-13 23:50:32 +09:00
common-main.c
config.c config: work around bug with includeif:onbranch and early config 2019-07-31 15:20:56 -07:00
config.h Merge branch 'dl/no-extern-in-func-decl' 2019-05-13 23:50:32 +09:00
config.mak.dev Makefile: allow for combining DEVELOPER=1 and CFLAGS="..." 2019-02-24 07:35:07 -08:00
config.mak.in Merge branch 'jc/remove-export-from-config-mak-in' 2013-04-01 09:00:02 -07:00
config.mak.uname vcxproj: also link-or-copy builtins 2019-07-29 14:51:43 -07:00
configure.ac configure: Detect linking style for HP aCC on HP-UX 2019-06-07 10:06:11 -07:00
connect.c
connect.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
connected.c check_everything_connected: assume alternate ref tips are valid 2019-07-01 10:11:09 -07:00
connected.h clone: do faster object check for partial clones 2019-04-21 14:08:53 +09:00
convert.c
convert.h Merge branch 'en/incl-forward-decl' 2018-08-20 12:41:32 -07:00
copy.c
COPYING
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
credential.c credential: ignore SIGPIPE when writing to credential helpers 2018-03-29 15:33:55 -07:00
credential.h credential: let helpers tell us to quit 2014-12-04 10:11:12 -08:00
csum-file.c
csum-file.h *.[ch]: remove extern from function declarations using spatch 2019-05-05 15:20:06 +09:00
ctype.c
daemon.c Merge branch 'lw/daemon-log-destination' 2018-04-25 13:28:58 +09:00
date.c completion: add more parameter value completion 2019-02-20 12:31:56 -08:00
decorate.c hashmap: convert sha1hash() to oidhash() 2019-06-20 10:44:22 -07:00
decorate.h *.[ch]: remove extern from function declarations using spatch 2019-05-05 15:20:06 +09:00
delta-islands.c Merge branch 'jk/oidhash' 2019-07-09 15:25:43 -07:00
delta-islands.h delta-islands: respect progress flag 2019-06-20 13:29:49 -07:00
delta.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
detect-compiler Makefile: detect compiler and enable more warnings in DEVELOPER=1 2018-04-16 13:54:53 +09:00
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 Merge branch 'nd/diff-parseopt-4' 2019-04-25 16:41:12 +09:00
diff.c Merge branch 'js/unmap-before-ext-diff' 2019-07-25 13:59:21 -07:00
diff.h range-diff: suppress line count in outer diff 2019-07-11 14:29:27 -07:00
diffcore-break.c Merge branch 'nd/the-index' 2018-10-19 13:34:02 +09:00
diffcore-delta.c diff.c: reduce implicit dependency on the_index 2018-09-21 09:48:10 -07:00
diffcore-order.c wildmatch: remove unused wildopts parameter 2017-06-23 18:27:07 -07:00
diffcore-pickaxe.c
diffcore-rename.c Merge branch 'jk/oidhash' 2019-07-09 15:25:43 -07:00
diffcore.h
dir-iterator.c dir-iterator: add flags parameter to dir_iterator_begin 2019-07-11 13:52:15 -07:00
dir-iterator.h dir-iterator: add flags parameter to dir_iterator_begin 2019-07-11 13:52:15 -07:00
dir.c cleanup: fix possible overflow errors in binary search, part 2 2019-06-13 11:28:53 -07:00
dir.h Merge branch 'dl/no-extern-in-func-decl' 2019-05-13 23:50:32 +09:00
editor.c pager: add a helper function to clear the last line in the terminal 2019-06-24 13:38:46 -07:00
entry.c fill_stat_cache_info(): prepare for an fsmonitor fix 2019-05-28 12:43:42 -07:00
environment.c Merge branch 'jk/save-getenv-result' 2019-01-29 12:47:54 -08:00
exec-cmd.c trace2: create new combined trace facility 2019-02-22 15:27:59 -08:00
exec-cmd.h *.[ch]: remove extern from function declarations using sed 2019-05-05 15:20:08 +09:00
fast-import.c Merge branch 'nd/tree-walk-with-repo' 2019-07-19 11:30:21 -07:00
fetch-negotiator.c
fetch-negotiator.h
fetch-object.c
fetch-object.h
fetch-pack.c Merge branch 'nd/fetch-capability-tweak' 2019-07-09 15:25:43 -07:00
fetch-pack.h fetch_pack(): drop unused parameters 2019-03-20 18:34:09 +09:00
fmt-merge-msg.h *.[ch]: remove extern from function declarations using spatch 2019-05-05 15:20:06 +09:00
fsck.c Merge branch 'br/blame-ignore' 2019-07-19 11:30:20 -07:00
fsck.h
fsmonitor.c Merge branch 'cb/fsmonitor-intfix' into maint 2019-07-29 12:38:15 -07:00
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: initialize repo object 2019-02-07 13:02:26 -08:00
fuzz-pack-headers.c
fuzz-pack-idx.c fuzz: add fuzz testing for packfile indices. 2018-10-15 14:29:03 +09:00
generate-cmdlist.sh help -a: do not list commands that are excluded from the build 2019-04-19 14:03:24 +09:00
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 Merge branch 'pw/add-p-recount' into maint 2019-07-29 12:38:22 -07:00
git-archimport.perl archimport: use safe_pipe_capture for user input 2017-09-12 11:08:15 +09:00
git-bisect.sh bisect--helper: bisect_start shell function partially in C 2019-01-02 10:23:03 -08:00
git-compat-util.h msvc: add a compile-time flag to allow detailed heap debugging 2019-06-25 10:46:57 -07:00
git-cvsexportcommit.perl cvsexportcommit: force crlf translation 2019-05-07 18:23:27 +09:00
git-cvsimport.perl
git-cvsserver.perl cvsserver: use safe_pipe_capture for constant commands as well 2017-09-11 14:52:29 +09:00
git-difftool--helper.sh mergetool: use get_merge_tool function 2019-05-13 23:11:59 +09:00
git-filter-branch.sh
git-instaweb.sh git-instaweb: add Python builtin http.server support 2019-01-28 10:57:44 -08:00
git-legacy-stash.sh
git-merge-octopus.sh Merge branch 'ma/up-to-date' 2017-09-10 17:08:22 +09:00
git-merge-one-file.sh merge-one-file: compute empty blob object ID 2018-05-02 13:59:53 +09:00
git-merge-resolve.sh
git-mergetool--lib.sh Merge branch 'dl/difftool-mergetool' 2019-05-19 16:45:30 +09:00
git-mergetool.sh mergetool: use shell variable magic instead of awk 2019-06-12 13:20:56 -07:00
git-p4.py Merge branch 'sw/git-p4-unshelve-branched-files' into maint 2019-07-25 14:27:15 -07:00
git-parse-remote.sh i18n: git-parse-remote.sh: mark strings for translation 2016-04-19 12:07:49 -07:00
git-quiltimport.sh
git-rebase--preserve-merges.sh rebase: fold git-rebase--common into the -p backend 2019-05-15 10:57:32 +09:00
git-request-pull.sh request-pull: warn if the remote object is not the same as the local one 2019-05-28 13:06:25 -07:00
git-send-email.perl Merge branch 'ab/send-email-transferencoding-fix' 2019-06-13 13:18:46 -07:00
git-sh-i18n.sh tests: make GIT_TEST_GETTEXT_POISON a boolean 2019-06-21 09:42:49 -07:00
git-sh-setup.sh stash: optionally use the scripted version again 2019-03-07 09:41:40 +09:00
git-submodule.sh Merge branch 'km/empty-repo-is-still-a-repo' 2019-05-09 00:37:23 +09:00
git-svn.perl git-svn: search --authors-prog in PATH too 2018-04-05 06:55:02 +00:00
GIT-VERSION-GEN First batch after Git 2.23 2019-08-22 12:41:04 -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 'js/visual-studio' 2019-08-02 13:12:02 -07:00
git.rc mingw: embed a manifest to trick UAC into Doing The Right Thing 2019-06-27 12:55:45 -07:00
gpg-interface.c gpg-interface: do not scan past the end of buffer 2019-07-16 12:15:12 -07:00
gpg-interface.h gpg-interface.c: obtain primary key fingerprint as well 2018-10-23 08:00:43 +09:00
graph.c Merge branch 'np/log-graph-octopus-fix' 2018-10-26 14:22:11 +09:00
graph.h
grep.c Merge branch 'bb/grep-pcre2-bug-message-fix' 2019-07-29 12:39:13 -07:00
grep.h *.[ch]: remove extern from function declarations using spatch 2019-05-05 15:20:06 +09:00
hash.h hash.h: move object_id definition from cache.h 2019-06-20 10:40:42 -07:00
hashmap.c
hashmap.h hashmap: convert sha1hash() to oidhash() 2019-06-20 10:44:22 -07:00
help.c Merge branch 'jk/help-unknown-ref-fix' 2019-06-13 13:19:42 -07:00
help.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
hex.c hex: introduce functions to print arbitrary hashes 2018-11-14 16:54:52 +09:00
http-backend.c http-backend: allow 64-character hex names 2019-04-01 11:57:38 +09:00
http-fetch.c
http-push.c object: convert lookup_object() to use object_id 2019-06-20 10:18:09 -07:00
http-walker.c Merge branch 'bc/hash-transition-16' 2019-04-25 16:41:17 +09:00
http.c Make fread/fwrite-like functions in http.c more like fread/fwrite. 2019-05-08 12:15:25 +09:00
http.h Merge branch 'dl/no-extern-in-func-decl' 2019-05-13 23:50:32 +09:00
ident.c Merge branch 'ps/stash-in-c' 2019-04-22 11:14:43 +09:00
imap-send.c
INSTALL
interdiff.c
interdiff.h
iterator.h
json-writer.c json_writer: new routines to create JSON data 2018-07-16 13:55:39 -07:00
json-writer.h
khash.h hashmap: convert sha1hash() to oidhash() 2019-06-20 10:44:22 -07:00
kwset.c Merge branch 'rs/copy-array' into maint 2019-07-29 12:38:15 -07:00
kwset.h *.[ch]: remove extern from function declarations using spatch 2019-05-05 15:20:06 +09:00
levenshtein.c
levenshtein.h Typofixes outside documentation area 2010-02-03 21:28:17 -08:00
LGPL-2.1 provide a copy of the LGPLv2.1 2011-05-19 18:23:17 -07:00
line-log.c tree-walk.c: remove the_repo from get_tree_entry() 2019-06-27 12:45:17 -07:00
line-log.h *.[ch]: remove extern from function declarations using spatch 2019-05-05 15:20:06 +09:00
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 linear-assignment: a function to solve least-cost assignment problems 2018-08-13 10:44:50 -07:00
list-objects-filter-options.c Merge branch 'md/list-objects-filter-parse-msgfix' 2019-06-21 11:24:10 -07:00
list-objects-filter-options.h list-objects-filter: disable 'sparse:path' filters 2019-05-29 11:05:34 -07:00
list-objects-filter.c Merge branch 'md/list-objects-filter-memfix' 2019-06-21 11:24:09 -07:00
list-objects-filter.h
list-objects.c
list-objects.h list-objects: consume sparse tree walk 2019-01-17 13:44:39 -08:00
list.h tempfile: use list.h for linked list 2017-09-06 17:19:54 +09:00
ll-merge.c Merge branch 'en/merge-path-collision' 2019-01-04 13:33:32 -08:00
ll-merge.h Merge branch 'en/merge-path-collision' 2019-01-04 13:33:32 -08:00
lockfile.c Replace all die("BUG: ...") calls by BUG() ones 2018-05-06 19:06:13 +09:00
lockfile.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
log-tree.c Merge branch 'wh/author-committer-ident-config' 2019-03-07 09:59:53 +09:00
log-tree.h format-patch: make cover letters always text/plain 2018-05-02 12:55:00 +09:00
ls-refs.c upload-pack: strip namespace from symref data 2019-05-28 10:02:00 -07:00
ls-refs.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
mailinfo.c mailinfo: support format=flowed 2018-08-29 13:05:35 -07:00
mailinfo.h *.[ch]: remove extern from function declarations using spatch 2019-05-05 15:20:06 +09:00
mailmap.c object-store: move object access functions to object-store.h 2018-05-16 11:42:03 +09:00
mailmap.h
Makefile Merge branch 'js/visual-studio' 2019-08-02 13:12:02 -07:00
match-trees.c match-trees.c: remove the_repo from shift_tree*() 2019-06-27 12:45:17 -07:00
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.c: remove implicit dependency on the_index 2018-09-21 09:48:10 -07:00
merge-blobs.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
merge-recursive.c Merge branch 'en/disable-dir-rename-in-recursive-merge' 2019-08-08 14:26:10 -07:00
merge-recursive.h
merge.c
mergesort.c
mergesort.h mergesort: rename it to llist_mergesort() 2012-04-17 11:07:01 -07:00
midx.c midx: implement midx_repack() 2019-06-11 10:34:40 -07:00
midx.h multi-pack-index: prepare 'repack' subcommand 2019-06-11 10:34:40 -07:00
name-hash.c cleanup: fix possible overflow errors in binary search, part 2 2019-06-13 11:28:53 -07:00
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
notes-utils.h notes-utils.c: remove the_repository references 2019-01-14 12:13:04 -08:00
notes.c tree-walk.c: remove the_repo from get_tree_entry() 2019-06-27 12:45:17 -07:00
notes.h notes: correct documentation of format_display_notes() 2019-05-07 19:08:10 +09:00
object-store.h Merge branch 'ds/object-info-for-prefetch-fix' into maint 2019-07-25 14:27:08 -07:00
object.c Merge branch 'jk/oidhash' 2019-07-09 15:25:43 -07:00
object.h object: convert create_object() to use object_id 2019-06-20 10:20:51 -07:00
oidmap.c Merge branch 'cc/test-oidmap' 2019-07-19 11:30:19 -07:00
oidmap.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
oidset.c Merge branch 'br/blame-ignore' 2019-07-19 11:30:20 -07:00
oidset.h Merge branch 'br/blame-ignore' 2019-07-19 11:30:20 -07:00
pack-bitmap-write.c pack-objects: drop packlist index_pos optimization 2019-09-06 11:03:42 -07:00
pack-bitmap.c pack-objects: drop packlist index_pos optimization 2019-09-06 11:03:42 -07:00
pack-bitmap.h pack-bitmap: convert khash_sha1 maps into kh_oid_map 2019-06-20 10:35:05 -07:00
pack-check.c pack-check.c: remove the_repository references 2018-11-12 14:50:06 +09:00
pack-objects.c pack-objects: drop packlist index_pos optimization 2019-09-06 11:03:42 -07:00
pack-objects.h pack-objects: drop packlist index_pos optimization 2019-09-06 11:03:42 -07:00
pack-revindex.c pack-revindex: open index if necessary 2019-04-16 16:58:21 +09:00
pack-revindex.h
pack-write.c convert "hashcmp() != 0" to "!hasheq()" 2018-08-29 11:32:49 -07:00
pack.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
packfile.c Merge branch 'ds/midx-expire-repack' 2019-07-19 11:30:19 -07:00
packfile.h Merge branch 'ds/close-object-store' into maint 2019-07-29 12:38:22 -07:00
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 Merge branch 'nd/switch-and-restore' 2019-07-09 15:25:44 -07:00
parse-options.c Merge branch 'nd/diff-parseopt' 2019-05-30 10:50:44 -07:00
parse-options.h Merge branch 'nd/switch-and-restore' 2019-07-09 15:25:44 -07:00
patch-delta.c patch-delta: handle truncated copy parameters 2018-08-30 10:30:23 -07:00
patch-ids.c hashmap: convert sha1hash() to oidhash() 2019-06-20 10:44:22 -07:00
patch-ids.h format-patch: make --base patch-id output stable 2019-05-08 19:27:43 +09:00
path.c Merge branch 'nd/rewritten-ref-is-per-worktree' 2019-04-10 02:14:23 +09:00
path.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
pathspec.c Merge branch 'nd/the-index-final' 2019-02-06 22:05:23 -08:00
pathspec.h dir.c: move, rename and export match_attrs() 2018-11-19 10:50:33 +09:00
pkt-line.c pkt-line: drop 'const'-ness of a param to set_packet_header() 2019-05-16 13:29:06 +09:00
pkt-line.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
preload-index.c mark_fsmonitor_valid(): mark the index as changed if needed 2019-05-28 12:43:43 -07:00
pretty.c use COPY_ARRAY for copying arrays 2019-06-17 18:15:04 -07:00
pretty.h Merge branch 'sb/more-repo-in-api' 2019-02-05 14:26:09 -08:00
prio-queue.c
prio-queue.h *.[ch]: remove extern from function declarations using spatch 2019-05-05 15:20:06 +09:00
progress.c Merge branch 'dr/progress-i18n' 2019-07-11 15:16:49 -07:00
progress.h Merge branch 'sg/overlong-progress-fix' 2019-04-25 16:41:19 +09:00
prompt.c config: don't include config.h by default 2017-06-15 12:56:22 -07:00
prompt.h prompt.c: remove git_getpass() nobody uses 2015-01-15 11:02:06 -08:00
protocol.c tests: define GIT_TEST_PROTOCOL_VERSION 2019-03-07 10:02:42 +09:00
protocol.h *.[ch]: remove extern from function declarations using spatch 2019-05-05 15:20:06 +09:00
quote.c
quote.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
range-diff.c range-diff: add headers to the outer hunk header 2019-07-11 14:29:27 -07:00
range-diff.h
reachable.c object: convert lookup_object() to use object_id 2019-06-20 10:18:09 -07:00
reachable.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
read-cache.c Merge branch 'rs/avoid-overflow-in-midpoint-computation' into maint 2019-07-29 12:38:21 -07:00
README.md README: fix rendering of text in angle brackets 2019-07-18 14:47:46 -07:00
rebase-interactive.c rebase-interactive: rewrite edit_todo_list() to handle the initial edit 2019-03-07 09:17:57 +09:00
rebase-interactive.h
ref-filter.c Merge branch 'ma/ref-filter-leakfix' 2019-07-19 11:30:23 -07:00
ref-filter.h parse_opt_ref_sorting: always use with NONEG flag 2019-03-21 12:03:35 +09:00
reflog-walk.c Merge branch 'nd/i18n' 2018-08-15 15:08:23 -07:00
reflog-walk.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
refs.c object: convert lookup_unknown_object() to use object_id 2019-06-20 10:06:19 -07:00
refs.h Merge branch 'nd/worktree-name-sanitization' 2019-06-13 13:19:40 -07:00
refspec.c
refspec.h
RelNotes First batch after Git 2.23 2019-08-22 12:41:04 -07:00
remote-curl.c i18n: fix typos found during l10n for git 2.22.0 2019-06-03 11:10:53 -07:00
remote-testsvn.c Merge branch 'sb/object-store-grafts' 2018-07-18 12:20:28 -07:00
remote.c Merge branch 'dr/ref-filter-push-track-fix' 2019-05-09 00:37:26 +09:00
remote.h Merge branch 'dl/no-extern-in-func-decl' 2019-05-13 23:50:32 +09:00
replace-object.c
replace-object.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
repository.c
repository.h
rerere.c read-cache.c: kill read_index() 2019-01-14 12:13:04 -08:00
rerere.h
resolve-undo.c
resolve-undo.h *.[ch]: remove extern from function declarations using spatch 2019-05-05 15:20:06 +09:00
revision.c Merge branch 'jk/check-connected-with-alternates' 2019-07-19 11:30:21 -07:00
revision.h Merge branch 'en/combined-all-paths' 2019-03-07 09:59:54 +09:00
run-command.c trace2: create new combined trace facility 2019-02-22 15:27:59 -08:00
run-command.h *.[ch]: remove extern from function declarations using sed 2019-05-05 15:20:08 +09:00
send-pack.c
send-pack.h Add missing includes and forward declarations 2018-08-15 11:52:09 -07:00
sequencer.c Merge branch 'nd/tree-walk-with-repo' 2019-07-19 11:30:21 -07:00
sequencer.h Merge branch 'ra/cherry-pick-revert-skip' 2019-07-19 11:30:21 -07:00
serve.c
serve.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
server-info.c Merge branch 'ew/server-info-remove-crufts' 2019-06-17 10:15:15 -07:00
setup.c
sh-i18n--envsubst.c cleanup: fix possible overflow errors in binary search, part 2 2019-06-13 11:28:53 -07:00
sha1-array.c
sha1-array.h
sha1-file.c sha1-file: release strbuf after use 2019-08-07 12:28:57 -07:00
sha1-lookup.c
sha1-lookup.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
sha1-name.c Merge branch 'nd/tree-walk-with-repo' 2019-07-19 11:30:21 -07:00
sha1dc_git.c sha1dc: allow building with the external sha1dc library 2017-08-16 14:44:25 -07:00
sha1dc_git.h
shallow.c Use the right 'struct repository' instead of the_repository 2019-06-27 12:45:17 -07:00
shell.c
shortlog.h
sideband.c
sideband.h
sigchain.c
sigchain.h
split-index.c
split-index.h
strbuf.c l10n: localizable upload progress messages 2019-07-02 12:18:49 -07:00
strbuf.h l10n: localizable upload progress messages 2019-07-02 12:18:49 -07:00
streaming.c Merge branch 'jk/loose-object-cache-oid' 2019-02-06 22:05:27 -08:00
streaming.h *.[ch]: remove extern from function declarations using spatch 2019-05-05 15:20:06 +09:00
string-list.c
string-list.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
sub-process.c trace2:data: add trace2 sub-process classification 2019-02-22 15:28:12 -08:00
sub-process.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
submodule-config.c
submodule-config.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
submodule.c submodule: drop unused prefix parameter from some functions 2019-05-13 14:22:54 +09:00
submodule.h submodule: drop unused prefix parameter from some functions 2019-05-13 14:22:54 +09:00
symlinks.c Indent code with TABs 2018-12-09 12:37:32 +09:00
tag.c object: convert create_object() to use object_id 2019-06-20 10:20:51 -07:00
tag.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
tar.h
tempfile.c
tempfile.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
thread-utils.c
thread-utils.h
tmp-objdir.c Replace all die("BUG: ...") calls by BUG() ones 2018-05-06 19:06:13 +09:00
tmp-objdir.h tmp-objdir: introduce API for temporary object directories 2016-10-10 13:54:02 -07:00
trace2.c Merge branch 'jh/trace2' 2019-05-13 23:50:35 +09:00
trace2.h trace2: rename environment variables to GIT_TRACE2* 2019-05-28 10:20:34 -07:00
trace.c trace.h: support nested performance tracing 2018-08-18 09:47:46 -07:00
trace.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
trailer.c
trailer.h
transport-helper.c Merge branch 'es/local-atomic-push-failure-with-http' into maint 2019-07-29 12:38:16 -07:00
transport-internal.h
transport.c Merge branch 'es/local-atomic-push-failure-with-http' 2019-07-25 13:59:22 -07:00
transport.h object-store.h: move for_each_alternate_ref() from transport.h 2019-07-01 09:47:29 -07:00
tree-diff.c tree-walk.c: remove the_repo from fill_tree_descriptor() 2019-06-27 12:45:17 -07:00
tree-walk.c Merge branch 'jk/tree-walk-overflow' 2019-08-22 12:34:10 -07:00
tree-walk.h Merge branch 'jk/tree-walk-overflow' 2019-08-22 12:34:10 -07:00
tree.c object: convert create_object() to use object_id 2019-06-20 10:20:51 -07:00
tree.h tree.c: make read_tree*() take 'struct repository *' 2018-11-19 10:50:33 +09:00
unicode-width.h Merge branch 'bb/unicode-12.1-reiwa' into maint 2019-07-25 14:27:11 -07:00
unimplemented.sh
unix-socket.c Merge branch 'rs/strbuf-getcwd' 2014-09-02 13:28:44 -07:00
unix-socket.h
unpack-trees.c Merge branch 'jk/tree-walk-overflow' 2019-08-22 12:34:10 -07:00
unpack-trees.h
upload-pack.c Merge branch 'jk/oidhash' 2019-07-09 15:25:43 -07:00
upload-pack.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
url.c url: do not allow %00 to represent NUL in URLs 2019-06-04 14:48:25 -07:00
url.h *.[ch]: remove extern from function declarations using spatch 2019-05-05 15:20:06 +09:00
urlmatch.c
urlmatch.h *.[ch]: remove extern from function declarations using spatch 2019-05-05 15:20:06 +09:00
usage.c
userdiff.c Merge branch 'ml/userdiff-rust' 2019-06-21 11:24:08 -07:00
userdiff.h notes-cache.c: remove the_repository references 2018-11-12 14:50:06 +09:00
utf8.c
utf8.h *.[ch]: remove extern from function declarations using spatch 2019-05-05 15:20:06 +09:00
varint.c cleanups: ensure that git-compat-util.h is included first 2014-09-15 12:05:14 -07:00
varint.h *.[ch]: remove extern from function declarations using spatch 2019-05-05 15:20:06 +09:00
version.c version --build-options: report commit, too, if possible 2017-12-14 22:53:04 -08:00
version.h
versioncmp.c config: don't include config.h by default 2017-06-15 12:56:22 -07:00
walker.c object: convert lookup_unknown_object() to use object_id 2019-06-20 10:06:19 -07:00
walker.h
wildmatch.c wildmatch: change behavior of "foo**bar" in WM_PATHNAME mode 2018-10-29 13:19:22 +09:00
wildmatch.h
worktree.c Merge branch 'nd/corrupt-worktrees' 2019-06-13 13:19:41 -07:00
worktree.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
wrap-for-bin.sh
wrapper.c wrapper: avoid undefined behaviour in macOS 2019-06-19 07:41:31 -07:00
write-or-die.c
ws.c
wt-status.c Merge branch 'jl/status-reduce-vertical-blank' 2019-07-19 11:30:23 -07:00
wt-status.h Merge branch 'jk/no-system-includes-in-dot-c' 2019-07-31 14:38:56 -07:00
xdiff-interface.c completion: add more parameter value completion 2019-02-20 12:31:56 -08:00
xdiff-interface.h *.[ch]: manually align parameter lists 2019-05-05 15:20:10 +09:00
zlib.c

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://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