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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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Jeff Hostetler 06b6d81b79 read-cache: speed up has_dir_name (part 1) 
Teach has_dir_name() to see if the path of the new item
is greater than the last path in the index array before
attempting to search for it.

has_dir_name() is looking for file/directory collisions
in the index and has to consider each sub-directory
prefix in turn.  This can cause multiple binary searches
for each path.

During operations like checkout, merge_working_tree()
populates the new index in sorted order, so we expect
to be able to append in many cases.

This commit is part 1 of 2.  This commit handles the top
of has_dir_name() and the trivial optimization.

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-19 20:33:01 -07:00
block-sha1
builtin Merge branch 'cc/untracked' 2017-04-11 00:21:51 -07:00
ci travis-ci: build and test Git on Windows 2017-03-28 12:24:48 -07:00
compat
contrib Merge branch 'ab/ref-filter-no-contains' 2017-04-11 00:21:50 -07:00
Documentation Eleventh batch for 2.13 2017-04-11 00:27:05 -07:00
ewah
git-gui
gitk-git
gitweb
mergetools
perl
po l10n: de: translate describe debug terms 2017-03-27 13:45:30 -07:00
ppc
refs
sha1dc sha1dc: avoid CPP macro collisions 2017-03-26 15:34:44 -07:00
t p0006-read-tree-checkout: perf test to time read-tree 2017-04-19 20:33:01 -07:00
templates
vcs-svn
xdiff
.gitattributes
.gitignore
.mailmap Git 2.12.2 2017-03-24 13:31:01 -07:00
.travis.yml travis-ci: build and test Git on Windows 2017-03-28 12:24:48 -07:00
abspath.c
aclocal.m4
advice.c
advice.h
alias.c
alloc.c
apply.c
apply.h
archive-tar.c
archive-zip.c
archive.c
archive.h
argv-array.c
argv-array.h
attr.c
attr.h
base85.c
bisect.c
bisect.h
blob.c
blob.h
branch.c
branch.h
builtin.h
bulk-checkin.c encode_in_pack_object_header: respect output buffer length 2017-03-24 12:34:07 -07:00
bulk-checkin.h
bundle.c
bundle.h
cache-tree.c
cache-tree.h
cache.h read-cache: add strcmp_offset function 2017-04-15 02:21:12 -07:00
check_bindir
check-builtins.sh
check-racy.c
color.c
color.h
column.c
column.h
combine-diff.c
command-list.txt
commit-slab.h
commit.c Merge branch 'rs/commit-parsing-optim' 2017-03-10 13:24:22 -08:00
commit.h
common-main.c
config.c Merge branch 'jk/parse-config-key-cleanup' into maint 2017-03-28 13:52:19 -07:00
config.mak.in
config.mak.uname
configure.ac
connect.c
connect.h
connected.c
connected.h
convert.c
convert.h
copy.c
COPYING
credential-cache--daemon.c
credential-cache.c
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 Merge branch 'jc/diff-populate-filespec-size-only-fix' into maint 2017-03-21 15:03:26 -07:00
diff.h
diffcore-break.c
diffcore-delta.c
diffcore-order.c
diffcore-pickaxe.c Merge branch 'js/regexec-buf' into maint 2017-03-28 13:52:24 -07:00
diffcore-rename.c
diffcore.h
dir-iterator.c
dir-iterator.h
dir.c Merge branch 'sb/checkout-recurse-submodules' 2017-03-28 14:05:58 -07:00
dir.h
editor.c
entry.c entry.c: create submodules when interesting 2017-03-16 14:07:16 -07:00
environment.c Merge branch 'jk/no-looking-at-dotgit-outside-repo-final' 2017-03-30 14:07:13 -07:00
exec_cmd.c
exec_cmd.h
fast-import.c Merge branch 'jk/fast-import-cleanup' 2017-03-28 14:05:59 -07:00
fetch-pack.c
fetch-pack.h
fmt-merge-msg.h
fsck.c
fsck.h
generate-cmdlist.sh
gettext.c
gettext.h
git-add--interactive.perl
git-archimport.perl
git-bisect.sh
git-compat-util.h Merge branch 'jk/pack-name-cleanups' into maint 2017-03-28 13:52:25 -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
git-merge-one-file.sh
git-merge-resolve.sh
git-mergetool--lib.sh
git-mergetool.sh
git-p4.py
git-parse-remote.sh
git-quiltimport.sh
git-rebase--am.sh
git-rebase--interactive.sh
git-rebase--merge.sh
git-rebase.sh
git-remote-testgit.sh
git-request-pull.sh
git-send-email.perl Merge branch 'jh/send-email-one-cc' into maint 2017-03-21 15:03:30 -07:00
git-sh-i18n.sh
git-sh-setup.sh
git-stash.sh stash: keep untracked files intact in stash -k 2017-03-22 14:55:56 -07:00
git-submodule.sh
git-svn.perl
GIT-VERSION-GEN Git 2.12.2 2017-03-24 12:59:15 -07:00
git-web--browse.sh
git.c Merge branch 'bw/recurse-submodules-relative-fix' 2017-03-30 14:07:15 -07:00
git.rc
gpg-interface.c
gpg-interface.h
graph.c
graph.h
grep.c
grep.h
hash.h
hashmap.c hashmap: add disallow_rehash setting 2017-03-22 13:41:41 -07:00
hashmap.h hashmap: add disallow_rehash setting 2017-03-22 13:41:41 -07:00
help.c
help.h
hex.c
http-backend.c
http-fetch.c
http-push.c
http-walker.c Merge branch 'ew/http-alternates-as-redirects-warning' into maint 2017-03-28 13:52:23 -07:00
http.c
http.h
ident.c
imap-send.c
INSTALL
iterator.h
khash.h
kwset.c
kwset.h
levenshtein.c
levenshtein.h
LGPL-2.1
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
log-tree.c
log-tree.h
mailinfo.c
mailinfo.h
mailmap.c
mailmap.h
Makefile read-cache: add strcmp_offset function 2017-04-15 02:21:12 -07:00
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 name-hash: perf improvement for lazy_init_name_hash 2017-03-24 11:00:03 -07:00
notes-cache.c
notes-cache.h
notes-merge.c
notes-merge.h
notes-utils.c
notes-utils.h
notes.c notes: do not break note_tree structure in note_tree_consolidate() 2017-03-27 21:21:25 -07:00
notes.h
object.c
object.h
oidset.c
oidset.h
pack-bitmap-write.c
pack-bitmap.c
pack-bitmap.h
pack-check.c
pack-objects.c
pack-objects.h
pack-revindex.c
pack-revindex.h
pack-write.c encode_in_pack_object_header: respect output buffer length 2017-03-24 12:34:07 -07:00
pack.h pack.h: define largest possible encoded object size 2017-03-24 12:34:07 -07:00
pager.c Merge branch 'jk/pager-in-use' 2017-03-28 14:05:59 -07:00
parse-options-cb.c
parse-options.c
parse-options.h ref-filter: add --no-contains option to tag/branch/for-each-ref 2017-03-24 12:15:26 -07:00
patch-delta.c
patch-ids.c
patch-ids.h
path.c
pathspec.c
pathspec.h
pkt-line.c
pkt-line.h
preload-index.c
pretty.c
prio-queue.c
prio-queue.h
progress.c
progress.h
prompt.c
prompt.h
quote.c
quote.h
reachable.c
reachable.h
read-cache.c read-cache: speed up has_dir_name (part 1) 2017-04-19 20:33:01 -07:00
README.md
ref-filter.c Merge branch 'ab/ref-filter-no-contains' 2017-04-11 00:21:50 -07:00
ref-filter.h ref-filter: add --no-contains option to tag/branch/for-each-ref 2017-03-24 12:15:26 -07:00
reflog-walk.c
reflog-walk.h
refs.c Merge branch 'sg/skip-prefix-in-prettify-refname' 2017-03-28 14:05:59 -07:00
refs.h
RelNotes Prepare for 2.12.3 2017-03-28 13:54:14 -07:00
remote-curl.c remote-curl: allow push options 2017-03-22 15:41:21 -07:00
remote-testsvn.c
remote.c Merge branch 'jn/remote-helpers-with-git-dir' into maint 2017-03-24 12:57:53 -07:00
remote.h Merge branch 'mm/fetch-show-error-message-on-unadvertised-object' into maint 2017-03-28 13:52:22 -07:00
replace_object.c
rerere.c
rerere.h
resolve-undo.c
resolve-undo.h
revision.c
revision.h Merge branch 'rs/path-name-safety-cleanup' into maint 2017-03-28 13:52:27 -07:00
run-command.c Merge branch 'jk/execv-dashed-external' into maint 2017-03-28 13:52:23 -07:00
run-command.h
send-pack.c Merge branch 'sb/push-options-via-transport' 2017-03-27 10:59:27 -07:00
send-pack.h
sequencer.c Merge branch 'js/rebase-i-reword-to-run-hooks' 2017-03-30 14:07:17 -07:00
sequencer.h
server-info.c
setup.c Merge branch 'bw/recurse-submodules-relative-fix' 2017-03-30 14:07:15 -07:00
sh-i18n--envsubst.c
sha1_file.c Merge branch 'jk/pack-name-cleanups' into maint 2017-03-28 13:52:25 -07:00
sha1_name.c rev-parse: match @{upstream}, @{u} and @{push} case-insensitively 2017-03-27 10:45:44 -07:00
sha1-array.c
sha1-array.h
sha1-lookup.c
sha1-lookup.h
shallow.c
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/freebsd-getcwd-workaround' 2017-03-30 14:07:15 -07:00
strbuf.h Merge branch 'jk/interpret-branch-name' into maint 2017-03-28 13:52:22 -07:00
streaming.c
streaming.h
string-list.c
string-list.h
submodule-config.c Merge branch 'sb/checkout-recurse-submodules' 2017-03-28 14:05:58 -07:00
submodule-config.h
submodule.c Merge branch 'bw/submodule-is-active' 2017-03-30 14:07:14 -07:00
submodule.h Merge branch 'sb/checkout-recurse-submodules' 2017-03-28 14:05:58 -07:00
symlinks.c
tag.c
tag.h
tar.h
tempfile.c tempfile: set errno to a known value before calling ferror() 2017-02-17 14:40:29 -08:00
tempfile.h
thread-utils.c
thread-utils.h
tmp-objdir.c
tmp-objdir.h
trace.c
trace.h
trailer.c
trailer.h
transport-helper.c Merge branch 'jn/remote-helpers-with-git-dir' into maint 2017-03-24 12:57:53 -07:00
transport.c Merge branch 'mm/fetch-show-error-message-on-unadvertised-object' into maint 2017-03-28 13:52:22 -07:00
transport.h
tree-diff.c
tree-walk.c
tree-walk.h
tree.c use QSORT 2016-09-29 15:42:18 -07:00
tree.h
unicode_width.h
unimplemented.sh
unix-socket.c
unix-socket.h
unpack-trees.c
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 Merge branch 'rs/strbuf-add-real-path' into maint 2017-03-28 13:52:19 -07:00
worktree.h
wrap-for-bin.sh
wrapper.c
write_or_die.c
ws.c
wt-status.c Merge branch 'sb/wt-status-cleanup' into maint 2017-03-28 13:52:26 -07:00
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