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Jeff King 9827d4c185 packfile: drop release_pack_memory() Long ago, in `97bfeb34df` (Release pack windows before reporting out of memory., 2006-12-24), we taught xmalloc() and friends to try unmapping pack windows when malloc() failed. It's unlikely that his helps a lot in practice, and it has some downsides. First, the downsides: 1. It makes xmalloc() not thread-safe. We've worked around this in pack-objects.c, which installs its own locking version of the try_to_free_routine(). But other threaded code doesn't. 2. It makes the system as a whole harder to reason about. Functions which allocate heap memory under the hood may have farther-reaching effects than expected. That might be worth the tradeoff if there's a benefit. But in practice, it seems unlikely. We're generally dealing with mmap'd files, so the OS is going to do a much better job at responding to memory pressure by dropping individual pages (the exception is systems with NO_MMAP, but even there the OS can probably respond just as well with swapping). So the only thing we're really freeing is address space. On 64-bit systems, we have plenty of that to go around. On 32-bit systems, it could possibly help. But around the same time we made two other changes: `77ccc5bbd1` (Introduce new config option for mmap limit., 2006-12-23) and `60bb8b1453` (Fully activate the sliding window pack access., 2006-12-23). Together that means that a 32-bit system should have no more than 256MB total of packed-git mmaps at one time, split between a few 32MB windows. It's unlikely we have any address space problems since then, but we don't have any data since the features were all added at the same time. Likewise, xmmap() will try to free memory. At first glance, it seems like we'd need this (when we try to mmap a new window, we might need to close an old one to save address space on a 32-bit system). But we're saved again by core.packedGitLimit: if we're going to exceed our 256MB limit, we'll close an existing window before we even call mmap(). So it seems unlikely that this feature is actually doing anything useful. And while we don't have reports of it harming anything (probably because it rarely if ever kicks in), it would be nice to simplify the system overall. This patch drops the whole try_to_free system from xmalloc(), as well as the manual pack memory release in xmmap(). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>		2019-08-13 12:21:33 -07:00
.github	point pull requesters to GitGitGadget	2019-03-13 11:07:50 +09:00
Documentation	Git 2.22.1	2019-08-11 17:41:39 -07:00
block-sha1	…
builtin	packfile: drop release_pack_memory()	2019-08-13 12:21:33 -07:00
ci	Merge branch 'sg/travis-gcc-4.8'	2019-07-29 12:39:13 -07:00
compat	Merge branch 'js/visual-studio'	2019-08-02 13:12:02 -07:00
contrib	Merge branch 'js/visual-studio'	2019-08-02 13:12:02 -07:00
ewah	…
git-gui	…
gitk-git	Merge git://ozlabs.org/~paulus/gitk	2019-03-18 11:18:49 +09:00
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	Git.pm: make hash size independent	2019-04-01 11:57:39 +09:00
po	tests: make GIT_TEST_GETTEXT_POISON a boolean	2019-06-21 09:42:49 -07:00
ppc	*.[ch]: manually align parameter lists	2019-05-05 15:20:10 +09:00
refs	dir-iterator: release strbuf after use	2019-08-07 12:25:35 -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	Merge branch 'jk/xdiff-clamp-funcname-context-index' into maint	2019-08-09 15:18:18 -07:00
templates	…
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' into maint	2019-08-09 15:18:19 -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	…
COPYING	…
GIT-VERSION-GEN	Git 2.22.1	2019-08-11 15:07:51 -07:00
INSTALL	…
LGPL-2.1	…
Makefile	Merge branch 'js/visual-studio'	2019-08-02 13:12:02 -07:00
README.md	README: fix rendering of text in angle brackets	2019-07-18 14:47:46 -07:00
RelNotes	Flush fixes up to the third batch post 2.22.0	2019-07-25 14:32:36 -07:00
abspath.c	…
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	…
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: convert struct archiver_args to object_id	2019-04-01 11:57:39 +09:00
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	…
argv-array.h	…
attr.c	Merge branch 'rd/attr.c-comment-typofix'	2019-03-11 16:16:24 +09:00
attr.h	…
azure-pipelines.yml	…
banned.h	…
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.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	…
cache-tree.c	cache-tree/blame: avoid reusing the DEBUG constant	2019-06-20 14:03:05 -07:00
cache-tree.h	…
cache.h	Merge branch 'sg/rebase-progress' into maint	2019-07-29 12:38:19 -07:00
chdir-notify.c	…
chdir-notify.h	…
check-builtins.sh	…
check_bindir	…
checkout.c	…
checkout.h	*.[ch]: manually align parameter lists	2019-05-05 15:20:10 +09:00
color.c	…
color.h	…
column.c	…
column.h	*.[ch]: manually align parameter lists	2019-05-05 15:20:10 +09:00
combine-diff.c	Merge branch 'en/combined-all-paths'	2019-03-07 09:59:54 +09:00
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 'ds/commit-graph-incremental'	2019-08-09 10:13:13 -07:00
commit-graph.h	commit-graph: verify chains with --shallow mode	2019-06-19 20:46:26 -07:00
commit-reach.c	…
commit-reach.h	…
commit-slab-decl.h	…
commit-slab-impl.h	…
commit-slab.h	…
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	trace2: report peak memory usage of the process	2019-04-16 13:37:07 +09:00
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	…
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	trace2:data: add trace2 transport child classification	2019-02-22 15:28:14 -08:00
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	Merge branch 'jh/resize-convert-scratch-buffer'	2019-04-10 02:14:22 +09:00
convert.h	…
copy.c	…
credential-cache--daemon.c	…
credential-cache.c	…
credential-store.c	…
credential.c	…
credential.h	…
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	…
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	…
diff-delta.c	…
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' into maint	2019-07-29 12:38:11 -07:00
diff.h	range-diff: suppress line count in outer diff	2019-07-11 14:29:27 -07:00
diffcore-break.c	…
diffcore-delta.c	…
diffcore-order.c	…
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	…
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-pack-headers.c	…
fuzz-pack-idx.c	…
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	…
git-bisect.sh	…
git-compat-util.h	packfile: drop release_pack_memory()	2019-08-13 12:21:33 -07:00
git-cvsexportcommit.perl	cvsexportcommit: force crlf translation	2019-05-07 18:23:27 +09:00
git-cvsimport.perl	…
git-cvsserver.perl	…
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-legacy-stash.sh	legacy stash: fix "rudimentary backport of -q"	2019-03-08 10:37:58 +09:00
git-merge-octopus.sh	…
git-merge-one-file.sh	…
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	…
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-web--browse.sh	…
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	…
graph.c	…
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	…
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	…
interdiff.c	…
interdiff.h	…
iterator.h	…
json-writer.c	…
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	…
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	…
linear-assignment.c	…
linear-assignment.h	…
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' into maint	2019-07-25 14:27:12 -07:00
list-objects-filter.h	…
list-objects.c	rev-list: detect broken root trees	2019-04-10 12:59:39 +09:00
list-objects.h	…
list.h	…
ll-merge.c	…
ll-merge.h	…
lockfile.c	…
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	…
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.h	*.[ch]: remove extern from function declarations using spatch	2019-05-05 15:20:06 +09:00
mailmap.c	…
mailmap.h	…
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	…
merge-blobs.c	…
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	…
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.h	…
notes-merge.c	notes-merge: switch to use the_hash_algo	2019-04-01 11:57:37 +09:00
notes-merge.h	…
notes-utils.c	…
notes-utils.h	…
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-bitmap: convert khash_sha1 maps into kh_oid_map	2019-06-20 10:35:05 -07:00
pack-bitmap.c	pack-bitmap: convert khash_sha1 maps into kh_oid_map	2019-06-20 10:35:05 -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-objects.c	hashmap: convert sha1hash() to oidhash()	2019-06-20 10:44:22 -07:00
pack-objects.h	pack-objects: convert packlist_find() to use object_id	2019-06-20 09:54:58 -07:00
pack-revindex.c	pack-revindex: open index if necessary	2019-04-16 16:58:21 +09:00
pack-revindex.h	pack-revindex: open index if necessary	2019-04-16 16:58:21 +09:00
pack-write.c	…
pack.h	*.[ch]: manually align parameter lists	2019-05-05 15:20:10 +09:00
packfile.c	packfile: drop release_pack_memory()	2019-08-13 12:21:33 -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-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	…
pathspec.h	…
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	…
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	…
prompt.h	…
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
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	rebase-interactive: rewrite edit_todo_list() to handle the initial edit	2019-03-07 09:17:57 +09:00
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	…
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: make hash size independent	2019-04-01 11:57:39 +09:00
refspec.h	…
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	…
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	Merge branch 'ma/clear-repository-format'	2019-03-20 15:16:07 +09:00
repository.h	trace2: create new combined trace facility	2019-02-22 15:27:59 -08:00
rerere.c	…
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	…
sequencer.c	Merge branch 'pw/rebase-abort-clean-rewritten' into maint	2019-07-29 12:38:20 -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	sha1-name.c: remove the_repo from maybe_die_on_misspelt_object_name	2019-04-16 18:56:53 +09:00
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	packfile: drop release_pack_memory()	2019-08-13 12:21:33 -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_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	Merge branch 'nd/split-index-null-base-fix'	2019-03-07 09:59:56 +09:00
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	…
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.c: use repo_get_oid for reading .gitmodules	2019-04-16 18:56:53 +09:00
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	…
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	…
tmp-objdir.h	…
trace.c	packfile: drop release_pack_memory()	2019-08-13 12:21:33 -07:00
trace.h	*.[ch]: manually align parameter lists	2019-05-05 15:20:10 +09:00
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
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	tree-walk.c: remove the_repo from get_tree_entry_follow_symlinks()	2019-06-27 12:45:17 -07:00
tree-walk.h	tree-walk.c: remove the_repo from get_tree_entry_follow_symlinks()	2019-06-27 12:45:17 -07:00
tree.c	object: convert create_object() to use object_id	2019-06-20 10:20:51 -07:00
tree.h	…
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	…
unix-socket.h	…
unpack-trees.c	Merge branch 'nd/tree-walk-with-repo'	2019-07-19 11:30:21 -07:00
unpack-trees.h	unpack-trees: rename "gently" flag to "quiet"	2019-03-24 21:35:34 +09:00
upload-pack.c	Merge branch 'ds/close-object-store' into maint	2019-07-29 12:38:22 -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	trace2: create new combined trace facility	2019-02-22 15:27:59 -08:00
userdiff.c	Merge branch 'ml/userdiff-rust'	2019-06-21 11:24:08 -07:00
userdiff.h	…
utf8.c	…
utf8.h	*.[ch]: remove extern from function declarations using spatch	2019-05-05 15:20:06 +09:00
varint.c	…
varint.h	*.[ch]: remove extern from function declarations using spatch	2019-05-05 15:20:06 +09:00
version.c	…
version.h	…
versioncmp.c	…
walker.c	object: convert lookup_unknown_object() to use object_id	2019-06-20 10:06:19 -07:00
walker.h	…
wildmatch.c	…
wildmatch.h	…
worktree.c	Merge branch 'nd/corrupt-worktrees' into maint	2019-07-25 14:27:07 -07:00
worktree.h	*.[ch]: manually align parameter lists	2019-05-05 15:20:10 +09:00
wrap-for-bin.sh	…
wrapper.c	packfile: drop release_pack_memory()	2019-08-13 12:21:33 -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	…

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). 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