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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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Johannes Schindelin 1f4044af7f rebase -i: do not invent onelines when expanding/collapsing SHA-1s 
To avoid problems with short SHA-1s that become non-unique during the
rebase, we rewrite the todo script with short/long SHA-1s before and
after letting the user edit the script. Since SHA-1s are not intuitive
for humans, rebase -i also provides the onelines (commit message
subjects) in the script, purely for the user's convenience.

It is very possible to generate a todo script via different means than
rebase -i and then to let rebase -i run with it; In this case, these
onelines are not required.

And this is where the expand/collapse machinery has a bug: it *expects*
that oneline, and failing to find one reuses the previous SHA-1 as
"oneline".

It was most likely an oversight, and made implementation in the (quite
limiting) shell script language less convoluted. However, we are about
to reimplement performance-critical parts in C (and due to spawning a
git.exe process for every single line of the todo script, the
expansion/collapsing of the SHA-1s *is* performance-hampering on
Windows), therefore let's fix this bug to make cross-validation with the
C version of that functionality possible.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-07-27 15:35:05 -07:00
.github Configure Git contribution guidelines for github.com 2017-06-13 08:41:47 -07:00
block-sha1
builtin rebase -i: generate the script via rebase--helper 2017-07-27 15:35:05 -07:00
ci Merge branch 'ls/travis-doc-asciidoctor' into maint 2017-06-05 09:03:10 +09:00
compat Merge branch 'tb/push-to-cygwin-unc-path' 2017-07-18 12:48:09 -07:00
contrib Merge branch 'aw/contrib-subtree-doc-asciidoctor' into maint 2017-07-10 13:59:06 -07:00
Documentation Sync with maint 2017-07-21 15:13:25 -07:00
ewah use DIV_ROUND_UP 2017-07-10 14:24:36 -07:00
git-gui Fix build with core.autocrlf=true 2017-05-10 13:32:50 +09:00
gitk-git
gitweb Spelling fixes 2017-06-27 10:35:49 -07:00
mergetools mergetools/meld: improve compatibiilty with Meld on macOS X 2017-06-18 22:11:29 -07:00
perl Merge branch 'pw/unquote-path-in-git-pm' 2017-07-10 13:42:50 -07:00
po l10n: git.pot: v2.14.0 round 2 (9 new, 2 removed) 2017-07-24 22:00:44 +08:00
ppc
refs Merge branch 'mh/packed-ref-store-prep' 2017-06-26 14:09:29 -07:00
sha1collisiondetection@19d97bf5af sha1dc: optionally use sha1collisiondetection as a submodule 2017-07-03 10:09:34 -07:00
sha1dc Merge branch 'ab/sha1dc-maint' 2017-07-06 18:14:44 -07:00
t t3415: verify that an empty instructionFormat is handled as before 2017-07-27 15:35:05 -07:00
templates pre-rebase hook: capture documentation in a <<here document 2017-07-11 08:56:33 -07:00
vcs-svn
xdiff
.gitattributes Fix build with core.autocrlf=true 2017-05-10 13:32:50 +09:00
.gitignore
.gitmodules sha1dc: optionally use sha1collisiondetection as a submodule 2017-07-03 10:09:34 -07:00
.mailmap
.travis.yml Merge branch 'ls/travis-doc-asciidoctor' into maint 2017-06-05 09:03:10 +09:00
abspath.c Spelling fixes 2017-06-27 10:35:49 -07:00
aclocal.m4
advice.c Merge branch 'jk/warn-add-gitlink' 2017-06-24 14:28:41 -07:00
advice.h add: warn when adding an embedded repository 2017-06-15 09:10:44 -07:00
alias.c Merge branch 'js/alias-case-sensitivity' 2017-07-20 16:29:59 -07:00
alloc.c
apply.c Merge branch 'rs/apply-avoid-over-reading' 2017-07-12 15:18:22 -07:00
apply.h
archive-tar.c Merge branch 'bw/config-h' 2017-06-24 14:28:41 -07:00
archive-zip.c Merge branch 'bw/config-h' 2017-06-24 14:28:41 -07:00
archive.c Merge branch 'bw/config-h' 2017-06-24 14:28:41 -07:00
archive.h
argv-array.c
argv-array.h
attr.c hashmap.h: compare function has access to a data field 2017-06-30 12:49:28 -07:00
attr.h
base85.c
bisect.c Merge branch 'bw/config-h' 2017-06-24 14:28:41 -07:00
bisect.h
blame.c Merge branch 'ab/free-and-null' 2017-06-24 14:28:41 -07:00
blame.h blame: move entry prepend to libgit 2017-05-25 13:08:23 +09:00
blob.c
blob.h
branch.c Merge branch 'ab/free-and-null' 2017-06-24 14:28:41 -07:00
branch.h
builtin.h blame: move textconv_object with related functions 2017-05-24 15:41:50 +09:00
bulk-checkin.c
bulk-checkin.h
bundle.c Merge branch 'bc/object-id' 2017-05-29 12:34:43 +09:00
bundle.h
cache-tree.c Merge branch 'bc/object-id' 2017-05-29 12:34:43 +09:00
cache-tree.h
cache.h Merge branch 'jt/unify-object-info' 2017-07-05 13:32:57 -07:00
check_bindir
check-builtins.sh
check-racy.c
color.c config: don't include config.h by default 2017-06-15 12:56:22 -07:00
color.h
column.c config: don't include config.h by default 2017-06-15 12:56:22 -07:00
column.h
combine-diff.c Merge branch 'bw/ls-files-sans-the-index' 2017-06-24 14:28:40 -07:00
command-list.txt
commit-slab.h *.[ch] refactoring: make use of the FREE_AND_NULL() macro 2017-06-16 12:44:09 -07:00
commit.c coccinelle: make use of the "type" FREE_AND_NULL() rule 2017-06-16 12:44:03 -07:00
commit.h Merge branch 'bc/object-id' 2017-05-29 12:34:43 +09:00
common-main.c
config.c Merge branch 'sb/hashmap-customize-comparison' 2017-07-13 16:14:54 -07:00
config.h config: read config from a repository object 2017-06-23 18:24:34 -07:00
config.mak.in
config.mak.uname config.mak.uname: set FREAD_READS_DIRECTORIES for cygwin 2017-07-21 11:58:06 -07:00
configure.ac Merge branch 'nd/fopen-errors' 2017-06-22 14:15:20 -07:00
connect.c Merge branch 'bw/config-h' 2017-06-24 14:28:41 -07:00
connect.h
connected.c
connected.h
convert.c hashmap.h: compare function has access to a data field 2017-06-30 12:49:28 -07:00
convert.h convert: convert renormalize_buffer to take an index 2017-06-13 11:40:51 -07:00
copy.c
COPYING
credential-cache--daemon.c Merge branch 'bw/config-h' 2017-06-24 14:28:41 -07:00
credential-cache.c
credential-store.c
credential.c Merge branch 'ab/free-and-null' 2017-06-24 14:28:41 -07:00
credential.h
csum-file.c
csum-file.h
ctype.c
daemon.c config: don't include config.h by default 2017-06-15 12:56:22 -07:00
date.c Merge branch 'ab/strbuf-addftime-tzname-boolify' 2017-07-06 18:14:47 -07:00
decorate.c
decorate.h
delta.h
diff-delta.c
diff-lib.c Merge branch 'ab/free-and-null' 2017-06-24 14:28:41 -07:00
diff-no-index.c diff: convert fill_filespec to struct object_id 2017-06-02 09:36:07 +09:00
diff.c Merge branch 'rs/use-div-round-up' 2017-07-12 15:18:23 -07:00
diff.h Merge branch 'bw/object-id' 2017-06-19 12:38:44 -07:00
diffcore-break.c
diffcore-delta.c
diffcore-order.c wildmatch: remove unused wildopts parameter 2017-06-23 18:27:07 -07:00
diffcore-pickaxe.c
diffcore-rename.c hashmap.h: compare function has access to a data field 2017-06-30 12:49:28 -07:00
diffcore.h diff: convert fill_filespec to struct object_id 2017-06-02 09:36:07 +09:00
dir-iterator.c
dir-iterator.h
dir.c Merge branch 'ab/wildmatch' 2017-07-10 13:42:51 -07:00
dir.h Merge branch 'pc/dir-count-slashes' 2017-06-22 14:15:21 -07:00
editor.c
entry.c
environment.c Merge branch 'bw/config-h' 2017-06-24 14:28:41 -07:00
exec_cmd.c
exec_cmd.h
fast-import.c Merge branch 'ab/free-and-null' 2017-06-24 14:28:41 -07:00
fetch-pack.c Merge branch 'bw/config-h' 2017-06-24 14:28:41 -07:00
fetch-pack.h
fmt-merge-msg.h
fsck.c Merge branch 'bc/object-id' 2017-05-29 12:34:43 +09:00
fsck.h
generate-cmdlist.sh
gettext.c
gettext.h
git-add--interactive.perl Merge branch 'jk/add-p-commentchar-fix' into maint 2017-07-10 13:58:59 -07:00
git-archimport.perl
git-bisect.sh
git-compat-util.h Merge branch 'tb/push-to-cygwin-unc-path' 2017-07-18 12:48:09 -07:00
git-cvsexportcommit.perl
git-cvsimport.perl
git-cvsserver.perl
git-difftool--helper.sh
git-filter-branch.sh filter-branch: add [--] to usage 2017-06-12 09:49:52 -07:00
git-instaweb.sh
git-merge-octopus.sh
git-merge-one-file.sh
git-merge-resolve.sh
git-mergetool--lib.sh
git-mergetool.sh
git-p4.py git-p4: filter for {'code':'info'} in p4CmdList 2017-07-13 10:52:42 -07:00
git-parse-remote.sh
git-quiltimport.sh
git-rebase--am.sh
git-rebase--interactive.sh rebase -i: do not invent onelines when expanding/collapsing SHA-1s 2017-07-27 15:35:05 -07:00
git-rebase--merge.sh
git-rebase.sh Merge branch 'pw/rebase-i-regression-fix-tests' into maint 2017-07-10 13:59:00 -07:00
git-remote-testgit.sh
git-request-pull.sh
git-send-email.perl Merge branch 'xz/send-email-batch-size' 2017-07-06 18:14:46 -07:00
git-sh-i18n.sh
git-sh-setup.sh
git-stash.sh Merge branch 'lb/status-stash-count' 2017-06-26 14:09:29 -07:00
git-submodule.sh add: warn when adding an embedded repository 2017-06-15 09:10:44 -07:00
git-svn.perl
GIT-VERSION-GEN Git 2.14-rc1 2017-07-24 14:50:35 -07:00
git-web--browse.sh
git.c Merge branch 'bw/config-h' 2017-06-24 14:28:41 -07:00
git.rc
gpg-interface.c Merge branch 'ab/free-and-null' 2017-06-24 14:28:41 -07:00
gpg-interface.h
graph.c config: don't include config.h by default 2017-06-15 12:56:22 -07:00
graph.h
grep.c grep: remove redundant REG_NEWLINE when compiling fixed regex 2017-06-30 10:06:24 -07:00
grep.h grep: remove regflags from the public grep_opt API 2017-06-30 10:06:24 -07:00
hash.h sha1dc: optionally use sha1collisiondetection as a submodule 2017-07-03 10:09:34 -07:00
hashmap.c hashmap.h: compare function has access to a data field 2017-06-30 12:49:28 -07:00
hashmap.h hashmap: migrate documentation from Documentation/technical into header 2017-06-30 13:11:59 -07:00
help.c Merge branch 'mb/reword-autocomplete-message' into maint 2017-07-10 13:59:04 -07:00
help.h
hex.c
http-backend.c Merge branch 'bw/config-h' 2017-06-24 14:28:41 -07:00
http-fetch.c config: don't include config.h by default 2017-06-15 12:56:22 -07:00
http-push.c coccinelle: make use of the "type" FREE_AND_NULL() rule 2017-06-16 12:44:03 -07:00
http-walker.c
http.c Merge branch 'ab/free-and-null' 2017-06-24 14:28:41 -07:00
http.h
ident.c Merge branch 'bw/config-h' 2017-06-24 14:28:41 -07:00
imap-send.c Merge branch 'rs/use-div-round-up' 2017-07-12 15:18:23 -07:00
INSTALL
iterator.h
khash.h
kwset.c
kwset.h
levenshtein.c
levenshtein.h
LGPL-2.1
line-log.c Merge branch 'ab/free-and-null' 2017-06-24 14:28:41 -07:00
line-log.h
line-range.c
line-range.h
list-objects.c
list-objects.h
list.h
ll-merge.c Merge branch 'ab/free-and-null' 2017-06-24 14:28:41 -07:00
ll-merge.h
lockfile.c
lockfile.h lockfile: add a new method, is_lock_file_locked() 2017-05-23 14:29:54 +09:00
log-tree.c Merge branch 'bw/config-h' 2017-06-24 14:28:41 -07:00
log-tree.h
mailinfo.c Spelling fixes 2017-06-27 10:35:49 -07:00
mailinfo.h
mailmap.c
mailmap.h
Makefile Merge branch 'jc/po-pritime-fix' 2017-07-21 14:57:37 -07:00
match-trees.c
merge-blobs.c
merge-blobs.h
merge-recursive.c Merge branch 'sb/merge-recursive-code-cleanup' 2017-07-06 18:14:45 -07:00
merge-recursive.h
merge.c tree: convert parse_tree_indirect to struct object_id 2017-05-08 15:12:58 +09:00
mergesort.c
mergesort.h
mru.c
mru.h
name-hash.c hashmap.h: compare function has access to a data field 2017-06-30 12:49:28 -07:00
notes-cache.c notes: convert some accessor functions to struct object_id 2017-06-02 09:36:06 +09:00
notes-cache.h
notes-merge.c diff-tree: convert diff_tree_sha1 to struct object_id 2017-06-05 11:23:58 +09:00
notes-merge.h notes-merge: convert notes_merge* to struct object_id 2017-06-05 11:23:58 +09:00
notes-utils.c Merge branch 'bw/config-h' 2017-06-24 14:28:41 -07:00
notes-utils.h builtin/notes: convert to struct object_id 2017-06-02 09:36:06 +09:00
notes.c Merge branch 'bw/config-h' 2017-06-24 14:28:41 -07:00
notes.h notes: convert some accessor functions to struct object_id 2017-06-02 09:36:06 +09:00
object.c coccinelle: make use of the "type" FREE_AND_NULL() rule 2017-06-16 12:44:03 -07:00
object.h object: convert parse_object* to take struct object_id 2017-05-08 15:12:58 +09:00
oidset.c hashmap.h: compare function has access to a data field 2017-06-30 12:49:28 -07:00
oidset.h
pack-bitmap-write.c
pack-bitmap.c Merge branch 'jc/pack-bitmap-unaligned' into maint 2017-07-10 13:59:00 -07:00
pack-bitmap.h
pack-check.c
pack-objects.c
pack-objects.h
pack-revindex.c
pack-revindex.h
pack-write.c
pack.h
pager.c config: don't include config.h by default 2017-06-15 12:56:22 -07:00
parse-options-cb.c Merge branch 'bc/object-id' 2017-05-29 12:34:43 +09:00
parse-options.c Merge branch 'bw/config-h' 2017-06-24 14:28:41 -07:00
parse-options.h
patch-delta.c
patch-ids.c patch-ids.c: use hashmap correctly 2017-06-30 13:11:54 -07:00
patch-ids.h patch-ids: convert to struct object_id 2017-06-02 09:36:07 +09:00
path.c path: add repo_worktree_path and strbuf_repo_worktree_path 2017-06-23 18:24:34 -07:00
path.h path: add repo_worktree_path and strbuf_repo_worktree_path 2017-06-23 18:24:34 -07:00
pathspec.c Spelling fixes 2017-06-27 10:35:49 -07:00
pathspec.h pathspec: convert find_pathspecs_matching_against_index to take an index 2017-05-12 14:23:46 +09:00
pkt-line.c
pkt-line.h pkt-line: annotate packet_writel with LAST_ARG_MUST_BE_NULL 2017-05-15 13:01:36 +09:00
preload-index.c
pretty.c Merge branch 'rs/pretty-add-again' into maint 2017-07-10 13:58:57 -07:00
prio-queue.c *.[ch] refactoring: make use of the FREE_AND_NULL() macro 2017-06-16 12:44:09 -07:00
prio-queue.h
progress.c progress: show overall rate in last update 2017-07-09 09:54:20 -07:00
progress.h
prompt.c config: don't include config.h by default 2017-06-15 12:56:22 -07:00
prompt.h
quote.c
quote.h
reachable.c Merge branch 'bc/object-id' 2017-05-29 12:34:43 +09:00
reachable.h
read-cache.c Merge branch 'cc/shared-index-permfix' 2017-07-05 13:32:57 -07:00
README.md
ref-filter.c Merge branch 'kn/ref-filter-branch-list' into maint 2017-07-12 15:23:09 -07:00
ref-filter.h
reflog-walk.c Merge branch 'jk/reflog-walk-maint' 2017-07-10 13:42:53 -07:00
reflog-walk.h
refs.c Merge branch 'sb/hashmap-customize-comparison' 2017-07-13 16:14:54 -07:00
refs.h Spelling fixes 2017-06-27 10:35:49 -07:00
RelNotes fixes from 'master' for 2.13.4 2017-07-21 15:06:09 -07:00
remote-curl.c config: don't include config.h by default 2017-06-15 12:56:22 -07:00
remote-testsvn.c Merge branch 'ab/free-and-null' 2017-06-24 14:28:41 -07:00
remote.c hashmap.h: compare function has access to a data field 2017-06-30 12:49:28 -07:00
remote.h
replace_object.c
repository.c repository: enable initialization of submodules 2017-06-23 18:24:34 -07:00
repository.h repository: enable initialization of submodules 2017-06-23 18:24:34 -07:00
rerere.c Merge branch 'ab/free-and-null' 2017-06-24 14:28:41 -07:00
rerere.h
resolve-undo.c
resolve-undo.h
revision.c Merge branch 'ab/grep-lose-opt-regflags' 2017-07-13 16:14:54 -07:00
revision.h Merge branch 'sg/revision-parser-skip-prefix' into maint 2017-06-24 15:29:34 -07:00
run-command.c
run-command.h
send-pack.c Spelling fixes 2017-06-27 10:35:49 -07:00
send-pack.h
sequencer.c rebase -i: generate the script via rebase--helper 2017-07-27 15:35:05 -07:00
sequencer.h rebase -i: generate the script via rebase--helper 2017-07-27 15:35:05 -07:00
server-info.c Merge branch 'nd/fopen-errors' 2017-06-13 13:47:09 -07:00
setup.c Merge branch 'js/alias-early-config' into maint 2017-07-10 13:58:58 -07:00
sh-i18n--envsubst.c
sha1_file.c Merge branch 'ew/fd-cloexec-fix' into maint 2017-07-21 15:03:40 -07:00
sha1_name.c Merge branch 'rs/use-div-round-up' 2017-07-12 15:18:23 -07:00
sha1-array.c coccinelle: make use of the "type" FREE_AND_NULL() rule 2017-06-16 12:44:03 -07:00
sha1-array.h
sha1-lookup.c
sha1-lookup.h
sha1dc_git.c sha1dc: update from upstream 2017-05-22 10:20:46 +09:00
sha1dc_git.h sha1dc: update from upstream 2017-05-22 10:20:46 +09:00
shallow.c Merge branch 'rs/use-div-round-up' 2017-07-12 15:18:23 -07:00
shell.c
shortlog.h
show-index.c
sideband.c
sideband.h
sigchain.c
sigchain.h
split-index.c Merge branch 'ab/free-and-null' 2017-06-24 14:28:41 -07:00
split-index.h Revert "split-index: add and use unshare_split_index()" 2017-06-24 12:02:39 -07:00
strbuf.c Merge branch 'rs/pretty-add-again' into maint 2017-07-10 13:58:57 -07:00
strbuf.h Merge branch 'rs/pretty-add-again' into maint 2017-07-10 13:58:57 -07:00
streaming.c
streaming.h
string-list.c Merge branch 'bw/forking-and-threading' into maint 2017-06-13 13:27:00 -07:00
string-list.h
sub-process.c hashmap.h: compare function has access to a data field 2017-06-30 12:49:28 -07:00
sub-process.h hashmap.h: compare function has access to a data field 2017-06-30 12:49:28 -07:00
submodule-config.c Merge branch 'sb/pull-rebase-submodule' 2017-07-13 16:14:54 -07:00
submodule-config.h Merge branch 'sb/pull-rebase-submodule' 2017-07-13 16:14:54 -07:00
submodule.c Merge branch 'sb/pull-rebase-submodule' 2017-07-13 16:14:54 -07:00
submodule.h Merge branch 'sb/pull-rebase-submodule' 2017-07-13 16:14:54 -07:00
symlinks.c
tag.c Merge branch 'bc/object-id' 2017-05-29 12:34:43 +09:00
tag.h Merge branch 'bc/object-id' 2017-05-29 12:34:43 +09:00
tar.h
tempfile.c
tempfile.h
thread-utils.c
thread-utils.h
tmp-objdir.c
tmp-objdir.h
trace.c
trace.h
trailer.c config: don't include config.h by default 2017-06-15 12:56:22 -07:00
trailer.h
transport-helper.c coccinelle: make use of the "type" FREE_AND_NULL() rule 2017-06-16 12:44:03 -07:00
transport.c Merge branch 'ab/free-and-null' 2017-06-24 14:28:41 -07:00
transport.h
tree-diff.c Merge branch 'ab/free-and-null' 2017-06-24 14:28:41 -07:00
tree-walk.c Merge branch 'jk/diff-blob' into maint 2017-06-24 15:29:28 -07:00
tree-walk.h
tree.c Merge branch 'ab/free-and-null' 2017-06-24 14:28:41 -07:00
tree.h tree: convert read_tree to take an index parameter 2017-06-13 11:40:51 -07:00
unicode_width.h unicode: update the width tables to Unicode 10 2017-07-07 10:33:30 -07:00
unimplemented.sh
unix-socket.c
unix-socket.h
unpack-trees.c Merge branch 'bw/config-h' 2017-06-24 14:28:41 -07:00
unpack-trees.h
upload-pack.c Merge branch 'bw/config-h' 2017-06-24 14:28:41 -07:00
url.c
url.h
urlmatch.c urlmatch: use hex2chr() in append_normalized_escapes() 2017-07-09 09:43:01 -07:00
urlmatch.h
usage.c die(): stop hiding errors due to overzealous recursion guard 2017-06-21 14:09:13 -07:00
userdiff.c config: don't include config.h by default 2017-06-15 12:56:22 -07:00
userdiff.h
utf8.c
utf8.h
varint.c
varint.h
version.c
version.h
versioncmp.c config: don't include config.h by default 2017-06-15 12:56:22 -07:00
walker.c object: convert parse_object* to take struct object_id 2017-05-08 15:12:58 +09:00
walker.h
wildmatch.c wildmatch: remove unused wildopts parameter 2017-06-23 18:27:07 -07:00
wildmatch.h wildmatch: remove unused wildopts parameter 2017-06-23 18:27:07 -07:00
worktree.c path: convert strbuf_git_common_path to take a 'struct repository' 2017-06-23 18:24:34 -07:00
worktree.h
wrap-for-bin.sh
wrapper.c Merge branch 'bw/config-h' 2017-06-24 14:28:41 -07:00
write_or_die.c
ws.c
wt-status.c Merge branch 'rs/wt-status-cleanup' 2017-07-12 15:18:23 -07:00
wt-status.h Merge branch 'ks/status-initial-commit' 2017-06-30 13:45:22 -07:00
xdiff-interface.c Merge branch 'bw/config-h' 2017-06-24 14:28:41 -07:00
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