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Jeff King 102cf7a6aa tempfile: release deactivated strbufs instead of resetting
When a tempfile is deactivated, we reset its strbuf to the
empty string, which means we hold onto the memory for later
reuse.

Since we'd like to move to a system where tempfile structs
can actually be freed, deactivating one should drop all
resources it is currently using. And thus "release" rather
than "reset" is the appropriate function to call.

In theory the reset may have saved a malloc() when a
tempfile (or a lockfile) is reused multiple times. But in
practice this happened rarely. Most of our tempfiles are
single-use, since in cases where we might actually use many
(like ref locking) we xcalloc() a fresh one for each ref. In
fact, we leak those locks (to appease the rule that tempfile
storage can never be freed). Which means that using reset is
actively hurting us: instead of leaking just the tempfile
struct, we're leaking the extra heap chunk for the filename,
too.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-06 17:19:54 +09:00
.github
Documentation The sixth batch post 2.14 2017-09-06 13:15:24 +09:00
block-sha1
builtin Merge branch 'po/read-graft-line' 2017-09-06 13:11:25 +09:00
ci
compat Merge branch 'rs/bswap-ubsan-fix' into maint 2017-08-23 14:33:46 -07:00
contrib Merge branch 'eb/contacts-reported-by' 2017-08-11 13:27:06 -07:00
ewah
git-gui
gitk-git
gitweb Merge branch 'js/gitweb-raw-blob-link-in-history' 2017-08-26 22:55:07 -07:00
mergetools
outgoing pack: move pack name-related functions 2017-08-23 15:12:06 -07:00
perl Merge branch 'ur/svn-local-zone' 2017-08-22 10:29:07 -07:00
po l10n: zh_CN: review for git v2.14.0 l10n 2017-08-02 08:02:37 +08:00
ppc
refs lockfile: do not rollback lock on failed close 2017-09-06 17:19:53 +09:00
sha1collisiondetection@19d97bf5af
sha1dc
t Merge branch 'rs/archive-excluded-directory' 2017-09-06 13:11:25 +09:00
templates Merge branch 'ks/prepare-commit-msg-sample-fix' 2017-08-23 14:13:07 -07:00
vcs-svn Merge branch 'jn/vcs-svn-cleanup' 2017-08-26 22:55:06 -07:00
xdiff
.gitattributes
.gitignore
.gitmodules
.mailmap
.travis.yml
COPYING
GIT-VERSION-GEN Prepare for 2.14.2 2017-08-23 14:36:03 -07:00
INSTALL
LGPL-2.1
Makefile Merge branch 'jt/packmigrate' 2017-08-26 22:55:09 -07:00
README.md
RelNotes Prepare for 2.14.2 2017-08-23 14:36:03 -07:00
abspath.c
aclocal.m4
advice.c
advice.h
alias.c
alloc.c
apply.c Merge branch 'tb/apply-with-crlf' 2017-08-26 22:55:05 -07:00
apply.h apply: remove prefix_length member from apply_state 2017-08-09 10:21:45 -07:00
archive-tar.c
archive-zip.c
archive.c Merge branch 'rs/archive-excluded-directory' 2017-09-06 13:11:25 +09:00
archive.h
argv-array.c
argv-array.h
attr.c
attr.h
base85.c
bisect.c
bisect.h
blame.c Merge branch 'js/blame-lib' 2017-07-31 13:05:15 -07:00
blame.h
blob.c
blob.h
branch.c branch: quote branch/ref names to improve readability 2017-08-17 13:33:28 -07:00
branch.h
builtin.h git.c: provide setup_auto_pager() 2017-08-03 11:08:10 -07:00
bulk-checkin.c pack: move {,re}prepare_packed_git and approximate_object_count 2017-08-23 15:12:07 -07:00
bulk-checkin.h
bundle.c
bundle.h
cache-tree.c write_index_as_tree: cleanup tempfile on error 2017-09-06 17:19:52 +09:00
cache-tree.h
cache.h Merge branch 'jt/packmigrate' 2017-08-26 22:55:09 -07:00
check-builtins.sh
check-racy.c
check_bindir
color.c
color.h
column.c
column.h
combine-diff.c
command-list.txt
commit-slab.h
commit.c commit: rewrite read_graft_line 2017-08-18 12:41:06 -07:00
commit.h Merge branch 'po/read-graft-line' 2017-09-06 13:11:25 +09:00
common-main.c
config.c Merge branch 'jc/cutoff-config' 2017-08-26 22:55:08 -07:00
config.h Merge branch 'jc/cutoff-config' 2017-08-26 22:55:08 -07:00
config.mak.in
config.mak.uname
configure.ac
connect.c Git 2.13.5 2017-08-04 12:40:37 -07:00
connect.h
connected.c pack: move {,re}prepare_packed_git and approximate_object_count 2017-08-23 15:12:07 -07:00
connected.h
convert.c Merge branch 'tb/apply-with-crlf' 2017-08-26 22:55:05 -07:00
convert.h Merge branch 'tb/apply-with-crlf' 2017-08-26 22:55:05 -07:00
copy.c
credential-cache--daemon.c
credential-cache.c Merge branch 'dl/credential-cache-socket-in-xdg-cache' into maint 2017-08-23 14:33:45 -07:00
credential-store.c
credential.c
credential.h
csum-file.c
csum-file.h
ctype.c
daemon.c
date.c
decorate.c
decorate.h
delta.h
diff-delta.c
diff-lib.c
diff-no-index.c
diff.c tempfile: do not delete tempfile on failed close 2017-09-06 17:19:53 +09:00
diff.h diff: define block by number of alphanumeric chars 2017-08-16 11:44:00 -07:00
diffcore-break.c
diffcore-delta.c
diffcore-order.c
diffcore-pickaxe.c
diffcore-rename.c progress: simplify "delayed" progress API 2017-08-19 14:01:34 -07:00
diffcore.h
dir-iterator.c
dir-iterator.h
dir.c Merge branch 'rs/stat-data-unaligned-reads-fix' into maint 2017-08-23 14:33:48 -07:00
dir.h
editor.c
entry.c
environment.c
exec_cmd.c
exec_cmd.h
fast-import.c pack: move pack name-related functions 2017-08-23 15:12:06 -07:00
fetch-pack.c pack: move {,re}prepare_packed_git and approximate_object_count 2017-08-23 15:12:07 -07:00
fetch-pack.h
fmt-merge-msg.h
fsck.c
fsck.h
generate-cmdlist.sh
gettext.c
gettext.h
git-add--interactive.perl Merge branch 'pw/unquote-path-in-git-pm' into maint 2017-07-31 13:51:05 -07:00
git-archimport.perl
git-bisect.sh
git-compat-util.h pack: move release_pack_memory() 2017-08-23 15:12:06 -07:00
git-cvsexportcommit.perl
git-cvsimport.perl
git-cvsserver.perl
git-difftool--helper.sh
git-filter-branch.sh
git-instaweb.sh
git-merge-octopus.sh scripts: use "git foo" not "git-foo" 2017-08-07 12:04:45 -07:00
git-merge-one-file.sh scripts: use "git foo" not "git-foo" 2017-08-07 12:04:45 -07:00
git-merge-resolve.sh scripts: use "git foo" not "git-foo" 2017-08-07 12:04:45 -07:00
git-mergetool--lib.sh
git-mergetool.sh
git-p4.py
git-parse-remote.sh
git-quiltimport.sh
git-rebase--am.sh Merge branch 'kw/rebase-progress' 2017-08-23 14:13:07 -07:00
git-rebase--interactive.sh rebase -i: honor --rerere-autoupdate 2017-08-02 15:16:09 -07:00
git-rebase--merge.sh
git-rebase.sh Merge branch 'kw/rebase-progress' 2017-08-23 14:13:07 -07:00
git-remote-testgit.sh
git-request-pull.sh
git-send-email.perl
git-sh-i18n.sh
git-sh-setup.sh
git-stash.sh Merge branch 'kd/stash-with-bash-4.4' 2017-08-23 14:13:08 -07:00
git-submodule.sh Merge branch 'sb/submodule-parallel-update' 2017-08-23 14:13:14 -07:00
git-svn.perl
git-web--browse.sh
git.c Merge branch 'bw/grep-recurse-submodules' 2017-08-22 10:29:01 -07:00
git.rc
gpg-interface.c tempfile: do not delete tempfile on failed close 2017-09-06 17:19:53 +09:00
gpg-interface.h
graph.c
graph.h
grep.c Merge branch 'as/grep-quiet-no-match-exit-code-fix' 2017-08-23 14:13:12 -07:00
grep.h grep: recurse in-process using 'struct repository' 2017-08-02 14:26:46 -07:00
hash.h
hashmap.c
hashmap.h
help.c
help.h
hex.c
http-backend.c pack: move {,re}prepare_packed_git and approximate_object_count 2017-08-23 15:12:07 -07:00
http-fetch.c
http-push.c pack: move find_sha1_pack() 2017-08-23 15:12:07 -07:00
http-walker.c pack: move find_sha1_pack() 2017-08-23 15:12:07 -07:00
http.c Merge branch 'jt/packmigrate' 2017-08-26 22:55:09 -07:00
http.h
ident.c
imap-send.c
iterator.h
khash.h
kwset.c
kwset.h
levenshtein.c
levenshtein.h
line-log.c
line-log.h
line-range.c
line-range.h
list-objects.c
list-objects.h
list.h
ll-merge.c
ll-merge.h
lockfile.c
lockfile.h lockfile: do not rollback lock on failed close 2017-09-06 17:19:53 +09:00
log-tree.c
log-tree.h
mailinfo.c
mailinfo.h
mailmap.c
mailmap.h
match-trees.c
merge-blobs.c
merge-blobs.h
merge-recursive.c
merge-recursive.h
merge.c
mergesort.c
mergesort.h
mru.c
mru.h
name-hash.c
notes-cache.c
notes-cache.h
notes-merge.c sha1_file: convert index_path to struct object_id 2017-08-20 21:51:38 -07:00
notes-merge.h
notes-utils.c
notes-utils.h
notes.c tree-walk: convert fill_tree_descriptor() to object_id 2017-08-14 12:38:54 -07:00
notes.h
object.c
object.h
oidset.c
oidset.h
pack-bitmap-write.c
pack-bitmap.c pack: move open_pack_index(), parse_pack_index() 2017-08-23 15:12:06 -07:00
pack-bitmap.h
pack-check.c pack: move open_pack_index(), parse_pack_index() 2017-08-23 15:12:06 -07:00
pack-objects.c
pack-objects.h
pack-revindex.c
pack-revindex.h
pack-write.c
pack.h
packfile.c pack: move for_each_packed_object() 2017-08-23 15:12:07 -07:00
packfile.h pack: move for_each_packed_object() 2017-08-23 15:12:07 -07:00
pager.c Merge branch 'ma/parse-maybe-bool' 2017-08-22 10:29:03 -07:00
parse-options-cb.c
parse-options.c
parse-options.h
patch-delta.c
patch-ids.c
patch-ids.h
path.c pack: move {,re}prepare_packed_git and approximate_object_count 2017-08-23 15:12:07 -07:00
path.h
pathspec.c
pathspec.h
pkt-line.c
pkt-line.h
preload-index.c
pretty.c Merge branch 'jk/trailers-parse' 2017-08-26 22:55:04 -07:00
prio-queue.c
prio-queue.h
progress.c progress: simplify "delayed" progress API 2017-08-19 14:01:34 -07:00
progress.h progress: simplify "delayed" progress API 2017-08-19 14:01:34 -07:00
prompt.c
prompt.h
quote.c
quote.h
reachable.c pack: move for_each_packed_object() 2017-08-23 15:12:07 -07:00
reachable.h
read-cache.c lockfile: do not rollback lock on failed close 2017-09-06 17:19:53 +09:00
ref-filter.c
ref-filter.h
reflog-walk.c
reflog-walk.h
refs.c Merge branch 'mh/ref-lock-entry' 2017-08-26 22:55:09 -07:00
refs.h
remote-curl.c
remote-testsvn.c
remote.c Merge branch 'sb/hashmap-cleanup' 2017-08-11 13:27:01 -07:00
remote.h
replace_object.c
repository.c Merge branch 'bw/grep-recurse-submodules' 2017-08-22 10:29:01 -07:00
repository.h
rerere.c rerere: allow approxidate in gc.rerereResolved/gc.rerereUnresolved 2017-08-22 14:51:02 -07:00
rerere.h
resolve-undo.c
resolve-undo.h
revision.c pack: move has_sha1_pack() 2017-08-23 15:12:07 -07:00
revision.h revision: add rev_input_given flag 2017-08-02 15:45:20 -07:00
run-command.c Merge branch 'js/run-process-parallel-api-fix' into maint 2017-08-23 14:33:49 -07:00
run-command.h
send-pack.c
send-pack.h
sequencer.c Merge branch 'pw/sequence-rerere-autoupdate' 2017-08-22 10:29:00 -07:00
sequencer.h
server-info.c pack: move {,re}prepare_packed_git and approximate_object_count 2017-08-23 15:12:07 -07:00
setup.c grep: recurse in-process using 'struct repository' 2017-08-02 14:26:46 -07:00
sh-i18n--envsubst.c
sha1-array.c
sha1-array.h
sha1-lookup.c sha1_file: drop experimental GIT_USE_LOOKUP search 2017-08-09 11:03:35 -07:00
sha1-lookup.h
sha1_file.c Merge branch 'po/read-graft-line' 2017-09-06 13:11:25 +09:00
sha1_name.c pack: move open_pack_index(), parse_pack_index() 2017-08-23 15:12:06 -07:00
sha1dc_git.c
sha1dc_git.h
shallow.c tempfile: do not delete tempfile on failed close 2017-09-06 17:19:53 +09:00
shell.c
shortlog.h
show-index.c
sideband.c
sideband.h
sigchain.c
sigchain.h
split-index.c
split-index.h
strbuf.c Merge branch 'rs/strbuf-getwholeline-fix' 2017-08-22 10:29:15 -07:00
strbuf.h
streaming.c pack: move use_pack() 2017-08-23 15:12:06 -07:00
streaming.h
string-list.c
string-list.h
sub-process.c Merge branch 'cc/subprocess-handshake-missing-capabilities' 2017-08-24 10:20:02 -07:00
sub-process.h Merge branch 'jt/subprocess-handshake' 2017-08-11 13:27:05 -07:00
submodule-config.c Merge branch 'bw/submodule-config-cleanup' 2017-08-26 22:55:08 -07:00
submodule-config.h Merge branch 'bw/grep-recurse-submodules' 2017-08-22 10:29:01 -07:00
submodule.c Merge branch 'bw/submodule-config-cleanup' 2017-08-26 22:55:08 -07:00
submodule.h Merge branch 'bw/submodule-config-cleanup' 2017-08-26 22:55:08 -07:00
symlinks.c
tag.c
tag.h
tar.h
tempfile.c tempfile: release deactivated strbufs instead of resetting 2017-09-06 17:19:54 +09:00
tempfile.h tempfile: handle NULL tempfile pointers gracefully 2017-09-06 17:19:53 +09:00
thread-utils.c
thread-utils.h
tmp-objdir.c
tmp-objdir.h
trace.c
trace.h
trailer.c Merge branch 'jk/trailers-parse' 2017-08-26 22:55:04 -07:00
trailer.h Merge branch 'jk/trailers-parse' 2017-08-26 22:55:04 -07:00
transport-helper.c
transport.c
transport.h
tree-diff.c tree-walk: convert fill_tree_descriptor() to object_id 2017-08-14 12:38:54 -07:00
tree-walk.c tree-walk: convert fill_tree_descriptor() to object_id 2017-08-14 12:38:54 -07:00
tree-walk.h tree-walk: convert fill_tree_descriptor() to object_id 2017-08-14 12:38:54 -07:00
tree.c
tree.h
unicode_width.h
unimplemented.sh
unix-socket.c
unix-socket.h
unpack-trees.c Merge branch 'bw/submodule-config-cleanup' 2017-08-26 22:55:08 -07:00
unpack-trees.h
upload-pack.c
url.c
url.h
urlmatch.c
urlmatch.h
usage.c
userdiff.c
userdiff.h
utf8.c
utf8.h
varint.c
varint.h
version.c
version.h
versioncmp.c
walker.c
walker.h
wildmatch.c
wildmatch.h
worktree.c
worktree.h
wrap-for-bin.sh
wrapper.c
write_or_die.c
ws.c
wt-status.c
wt-status.h
xdiff-interface.c
xdiff-interface.h
zlib.c

README.md

Git - fast, scalable, distributed revision control system

Git is a fast, scalable, distributed revision control system with an unusually rich command set that provides both high-level operations and full access to internals.

Git is an Open Source project covered by the GNU General Public License version 2 (some parts of it are under different licenses, compatible with the GPLv2). It was originally written by Linus Torvalds with help of a group of hackers around the net.

Please read the file INSTALL for installation instructions.

Many Git online resources are accessible from https://git-scm.com/ including full documentation and Git related tools.

See Documentation/gittutorial.txt to get started, then see Documentation/giteveryday.txt for a useful minimum set of commands, and Documentation/git-.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.

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