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Jeff King 85a9a63c92 diff: handle NULL meta-info when spawning external diff
Running this:

  $ touch foo bar
  $ chmod +x foo
  $ git -c diff.external=echo diff --ext-diff --no-index foo bar

results in a segfault. The issue is that run_diff_cmd() passes a NULL
"xfrm_msg" variable to run_external_diff(), which feeds it to
strvec_push(), causing the segfault. The bug dates back to 82fbf269b9
(run_external_diff: use an argv_array for the command line, 2014-04-19),
though it mostly only ever worked accidentally.  Before then, we just
stuck the NULL pointer into a "const char **" array, so our NULL ended
up acting as an extra end-of-argv sentinel (which was OK, because it was
the last thing in the array).

Curiously, though, this is only a problem with --no-index. We set up
xfrm_msg by calling fill_metainfo(). This result may be empty, or may
have text like "index 1234..5678\n", "rename from foo\nrename from
bar\n", etc. In run_external_diff(), we only look at xfrm_msg if the
"other" variable is not NULL. That variable is set when the paths of the
two sides of the diff pair aren't the same (in which case the
destination path becomes "other"). So normally it would kick in only for
a rename, in which case xfrm_msg should not be NULL (it would have the
rename information in it).

But with a "--no-index" of two blobs, we of course have two different
pathnames, and thus end up with a non-NULL "other" filename (which is
always just a repeat of the file2-name), but possibly a NULL xfrm_msg.

So how to fix it? I have a feeling that --no-index always passing
"other" to the external diff command is probably a bug. There was no
rename, and the name is always redundant with existing information we
pass (and this may even cause us to pass a useless "xfrm_msg" that
contains an "index 1234..5678" line). So one option would be to change
that behavior. We don't seem to have ever documented the "other" or
"xfrm_msg" parameters for external diffs.

But I'm not sure what fallout we might have from changing that behavior
now. So this patch takes the less-risky option, and simply teaches
run_external_diff() to avoid passing xfrm_msg when it's NULL. That makes
it agnostic to whether "other" and "xfrm_msg" always come as a pair. It
fixes the segfault now, and if we want to change the --no-index "other"
behavior on top, it will handle that, too.

Reported-by: Wilfred Hughes <me@wilfred.me.uk>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-01-29 10:37:44 -08:00
.github ci: upgrade to using macos-13 2023-11-03 18:52:02 +09:00
Documentation Git 2.43 2023-11-20 10:28:15 +09:00
block-sha1
builtin Merge branch 'bc/merge-file-object-input' 2023-11-08 11:04:01 +09:00
ci ci: upgrade to using macos-13 2023-11-03 18:52:02 +09:00
compat Merge branch 'jk/fsmonitor-unused-parameter' 2023-09-29 09:04:14 -07:00
contrib Merge branch 'jc/test-i18ngrep' 2023-11-08 11:04:02 +09:00
ewah
git-gui Merge git-gui into ml/git-gui-exec-path-fix 2023-09-18 10:52:30 -07:00
gitk-git
gitweb
mergetools
negotiator negotiator/noop: mark unused callback parameters 2023-08-29 17:56:25 -07:00
oss-fuzz
perl
po Merge branch 'l10n/zh-TW/2023-11-19' of github.com:l10n-tw/git-po 2023-11-20 07:57:09 +08:00
refs files-backend.c: avoid stat in 'loose_fill_ref_dir' 2023-10-09 15:53:14 -07:00
reftable
sha1
sha1collisiondetection@855827c583
sha1dc
sha256
t diff: handle NULL meta-info when spawning external diff 2024-01-29 10:37:44 -08:00
templates
trace2 trace2: mark unused config callback parameter 2023-08-29 17:56:25 -07:00
xdiff
.cirrus.yml
.clang-format clang-format: fix typo in comment 2023-11-01 12:24:19 +09:00
.editorconfig
.gitattributes
.gitignore
.gitmodules
.mailmap mailmap: change primary address for Derrick Stolee 2023-10-12 10:59:36 -07:00
.tsan-suppressions
CODE_OF_CONDUCT.md
COPYING
GIT-VERSION-GEN Git 2.43 2023-11-20 10:28:15 +09:00
INSTALL
LGPL-2.1
Makefile Merge branch 'bc/racy-4gb-files' 2023-10-23 13:56:37 -07:00
README.md
RelNotes Git 2.42.1 2023-11-02 16:59:16 +09:00
SECURITY.md
abspath.c
abspath.h
aclocal.m4
add-interactive.c Merge branch 'jk/unused-post-2.42' 2023-09-07 15:06:07 -07:00
add-interactive.h
add-patch.c
advice.c
advice.h
alias.c
alias.h
alloc.c
alloc.h
apply.c
apply.h
archive-tar.c
archive-zip.c
archive.c
archive.h
attr.c Merge branch 'jc/attr-tree-config' 2023-10-30 07:09:55 +09:00
attr.h attr: add attr.tree for setting the treeish to read attributes from 2023-10-13 11:43:29 -07:00
banned.h
base85.c
base85.h
bisect.c
bisect.h
blame.c
blame.h
blob.c
blob.h
bloom.c commit-graph: detect out-of-order BIDX offsets 2023-10-09 15:55:02 -07:00
bloom.h
branch.c
branch.h
builtin.h
bulk-checkin.c Merge branch 'eb/limit-bulk-checkin-to-blobs' 2023-10-10 11:39:14 -07:00
bulk-checkin.h bulk-checkin: only support blobs in index_bulk_checkin 2023-09-26 10:17:56 -07:00
bundle-uri.c bundle-uri: mark unused parameters in callbacks 2023-08-29 17:56:26 -07:00
bundle-uri.h
bundle.c
bundle.h
cache-tree.c
cache-tree.h
cbtree.c
cbtree.h
chdir-notify.c
chdir-notify.h
check-builtins.sh
checkout.c
checkout.h
chunk-format.c chunk-format: drop pair_chunk_unsafe() 2023-10-09 15:55:02 -07:00
chunk-format.h chunk-format: drop pair_chunk_unsafe() 2023-10-09 15:55:02 -07:00
color.c hex-ll: separate out non-hash-algo functions 2023-09-29 15:14:56 -07:00
color.h
column.c
column.h
combine-diff.c
command-list.txt
commit-graph.c Merge branch 'ps/do-not-trust-commit-graph-blindly-for-existence' 2023-11-08 11:03:59 +09:00
commit-graph.h Merge branch 'ps/do-not-trust-commit-graph-blindly-for-existence' 2023-11-08 11:03:59 +09:00
commit-reach.c commit-reach: free temporary list in get_octopus_merge_bases() 2023-10-03 14:28:23 -07:00
commit-reach.h
commit-slab-decl.h
commit-slab-impl.h
commit-slab.h
commit.c commit: detect commits that exist in commit-graph but not in the ODB 2023-11-01 12:04:06 +09:00
commit.h
common-main.c
config.c Merge branch 'jc/attr-tree-config' 2023-10-30 07:09:55 +09:00
config.h parse: separate out parsing functions from config.h 2023-09-29 15:14:57 -07:00
config.mak.dev
config.mak.in
config.mak.uname
configure.ac
connect.c
connect.h
connected.c
connected.h
convert.c
convert.h
copy.c
copy.h
credential.c credential: mark unused parameter in urlmatch callback 2023-08-29 17:56:26 -07:00
credential.h
csum-file.c Merge branch 'ew/hash-with-openssl-evp' 2023-09-13 10:07:57 -07:00
csum-file.h
ctype.c
daemon.c daemon: free listen_addr before returning 2023-10-05 14:54:58 -07:00
date.c
date.h
decorate.c decorate: add clear_decoration() function 2023-10-05 14:54:55 -07:00
decorate.h decorate: add clear_decoration() function 2023-10-05 14:54:55 -07:00
delta-islands.c
delta-islands.h
delta.h
detect-compiler
diagnose.c dir.[ch]: add 'follow_symlink' arg to 'get_dtype' 2023-10-09 15:53:13 -07:00
diagnose.h
diff-delta.c
diff-lib.c Merge branch 'js/diff-cached-fsmonitor-fix' into maint-2.42 2023-11-02 16:53:19 +09:00
diff-merges.c diff-merges: introduce '--dd' option 2023-10-09 12:47:29 -07:00
diff-merges.h
diff-no-index.c Merge branch 'pw/diff-no-index-from-named-pipes' into maint-2.42 2023-11-02 16:53:18 +09:00
diff.c diff: handle NULL meta-info when spawning external diff 2024-01-29 10:37:44 -08:00
diff.h diff --stat: set the width defaults in a helper function 2023-09-29 15:46:06 -07:00
diffcore-break.c
diffcore-delta.c
diffcore-order.c
diffcore-pickaxe.c
diffcore-rename.c
diffcore-rotate.c
diffcore.h
dir-iterator.c
dir-iterator.h
dir.c dir.[ch]: add 'follow_symlink' arg to 'get_dtype' 2023-10-09 15:53:13 -07:00
dir.h dir.[ch]: add 'follow_symlink' arg to 'get_dtype' 2023-10-09 15:53:13 -07:00
editor.c
editor.h
entry.c wrapper: reduce scope of remove_or_warn() 2023-09-29 15:14:56 -07:00
entry.h wrapper: reduce scope of remove_or_warn() 2023-09-29 15:14:56 -07:00
environment.c max_tree_depth: lower it for MSVC to avoid stack overflows 2023-11-02 08:58:28 +09:00
environment.h add core.maxTreeDepth config 2023-08-31 15:51:07 -07:00
exec-cmd.c
exec-cmd.h
fetch-negotiator.c
fetch-negotiator.h
fetch-pack.c Merge branch 'ts/unpacklimit-config-fix' into maint-2.42 2023-11-02 16:53:16 +09:00
fetch-pack.h
fmt-merge-msg.c
fmt-merge-msg.h
fsck.c fsck: detect very large tree pathnames 2023-08-31 15:51:07 -07:00
fsck.h fsck: detect very large tree pathnames 2023-08-31 15:51:07 -07:00
fsmonitor--daemon.h doc: fix some typos, grammar and wording issues 2023-10-05 12:55:38 -07:00
fsmonitor-ipc.c fsmonitor: mark unused parameters in stub functions 2023-09-18 15:56:15 -07:00
fsmonitor-ipc.h
fsmonitor-ll.h
fsmonitor-path-utils.h
fsmonitor-settings.c fsmonitor: mark some maybe-unused parameters 2023-09-18 15:56:14 -07:00
fsmonitor-settings.h
fsmonitor.c
fsmonitor.h
generate-cmdlist.sh
generate-configlist.sh
generate-hooklist.sh
gettext.c
gettext.h
git-archimport.perl
git-compat-util.h Merge branch 'mp/rebase-label-length-limit' into maint-2.42 2023-11-02 16:53:14 +09:00
git-curl-compat.h
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-p4 shouldn't attempt to store symlinks in LFS 2023-10-19 10:57:44 -07:00
git-quiltimport.sh
git-request-pull.sh
git-send-email.perl Merge branch 'tz/send-email-helpfix' 2023-11-20 09:57:22 +09:00
git-sh-i18n.sh
git-sh-setup.sh
git-submodule.sh
git-svn.perl git-svn: drop FakeTerm hack 2023-08-30 17:20:31 -07:00
git-web--browse.sh
git-zlib.c
git-zlib.h
git.c
git.rc
gpg-interface.c
gpg-interface.h
graph.c diff --stat: add config option to limit filename width 2023-09-18 09:39:07 -07:00
graph.h
grep.c grep: mark unused parmaeters in pcre fallbacks 2023-08-29 17:56:26 -07:00
grep.h
hash-ll.h
hash-lookup.c
hash-lookup.h
hash.h
hashmap.c
hashmap.h
help.c
help.h
hex-ll.c hex-ll: separate out non-hash-algo functions 2023-09-29 15:14:56 -07:00
hex-ll.h hex-ll: separate out non-hash-algo functions 2023-09-29 15:14:56 -07:00
hex.c hex-ll: separate out non-hash-algo functions 2023-09-29 15:14:56 -07:00
hex.h hex-ll: separate out non-hash-algo functions 2023-09-29 15:14:56 -07:00
hook.c
hook.h
http-backend.c
http-fetch.c
http-push.c
http-walker.c
http.c Merge branch 'jk/redact-h2h3-headers-fix' into maint-2.42 2023-11-02 16:53:19 +09:00
http.h
ident.c
ident.h
imap-send.c imap-send: mark unused parameters with NO_OPENSSL 2023-08-29 17:56:26 -07:00
iterator.h
json-writer.c
json-writer.h
khash.h
kwset.c
kwset.h
levenshtein.c
levenshtein.h
line-log.c revision: clear decoration structs during release_revisions() 2023-10-05 14:54:57 -07:00
line-log.h revision: clear decoration structs during release_revisions() 2023-10-05 14:54:57 -07:00
line-range.c
line-range.h
linear-assignment.c
linear-assignment.h
list-objects-filter-options.c
list-objects-filter-options.h
list-objects-filter.c
list-objects-filter.h
list-objects.c Merge branch 'tb/rev-list-unpacked-fix' 2023-11-08 15:04:42 +09:00
list-objects.h
list.h
lockfile.c
lockfile.h
log-tree.c decorate: use commit color for HEAD arrow 2023-08-21 11:40:10 -07:00
log-tree.h pretty: add pointer and tag options to %(decorate) 2023-08-21 11:40:10 -07:00
ls-refs.c
ls-refs.h
mailinfo.c hex-ll: separate out non-hash-algo functions 2023-09-29 15:14:56 -07:00
mailinfo.h
mailmap.c
mailmap.h
match-trees.c
match-trees.h
mem-pool.c
mem-pool.h
merge-blobs.c
merge-blobs.h
merge-ll.c
merge-ll.h
merge-ort-wrappers.c
merge-ort-wrappers.h
merge-ort.c Merge branch 'wx/merge-ort-comment-typofix' into maint-2.42 2023-11-02 16:53:27 +09:00
merge-ort.h
merge-recursive.c merge: introduce {copy|clear}_merge_options() 2023-10-11 13:37:47 -07:00
merge-recursive.h merge: introduce {copy|clear}_merge_options() 2023-10-11 13:37:47 -07:00
merge.c
merge.h
mergesort.h
midx.c midx: check size of revindex chunk 2023-10-09 15:55:01 -07:00
midx.h midx: check size of revindex chunk 2023-10-09 15:55:01 -07:00
name-hash.c
name-hash.h
notes-cache.c
notes-cache.h
notes-merge.c
notes-merge.h
notes-utils.c
notes-utils.h
notes.c
notes.h
object-file.c bulk-checkin: only support blobs in index_bulk_checkin 2023-09-26 10:17:56 -07:00
object-file.h
object-name.c
object-name.h
object-store-ll.h
object-store.h
object.c
object.h
oid-array.c
oid-array.h
oidmap.c
oidmap.h
oidset.c
oidset.h
oidtree.c
oidtree.h
pack-bitmap-write.c pack-bitmap-write: rebuild using new bitmap when remapping 2023-10-02 14:54:30 -07:00
pack-bitmap.c Merge branch 'tb/rev-list-unpacked-fix' 2023-11-08 15:04:42 +09:00
pack-bitmap.h
pack-check.c
pack-mtimes.c
pack-mtimes.h
pack-objects.c parse: separate out parsing functions from config.h 2023-09-29 15:14:57 -07:00
pack-objects.h
pack-revindex.c Merge branch 'jk/chunk-bounds' 2023-10-23 13:56:36 -07:00
pack-revindex.h
pack-write.c
pack.h
packfile.c
packfile.h
pager.c
pager.h
parallel-checkout.c
parallel-checkout.h
parse-options-cb.c parse-options: mark unused parameters in noop callback 2023-09-05 14:48:17 -07:00
parse-options.c parse-options: make CMDMODE errors more precise 2023-10-29 09:15:18 +09:00
parse-options.h parse-options: make CMDMODE errors more precise 2023-10-29 09:15:18 +09:00
parse.c parse: separate out parsing functions from config.h 2023-09-29 15:14:57 -07:00
parse.h parse: separate out parsing functions from config.h 2023-09-29 15:14:57 -07:00
patch-delta.c
patch-ids.c
patch-ids.h
path.c
path.h
pathspec.c grep: die gracefully when outside repository 2023-10-20 11:06:45 -07:00
pathspec.h
pkt-line.c
pkt-line.h
preload-index.c parse: separate out parsing functions from config.h 2023-09-29 15:14:57 -07:00
preload-index.h
pretty.c pretty: fix ref filtering for %(decorate) formats 2023-10-09 11:25:13 -07:00
pretty.h
prio-queue.c
prio-queue.h
progress.c parse: separate out parsing functions from config.h 2023-09-29 15:14:57 -07:00
progress.h
promisor-remote.c
promisor-remote.h
prompt.c parse: separate out parsing functions from config.h 2023-09-29 15:14:57 -07:00
prompt.h
protocol-caps.c
protocol-caps.h
protocol.c
protocol.h
prune-packed.c
prune-packed.h
quote.c
quote.h
range-diff.c Merge branch 'kh/range-diff-notes' 2023-09-29 09:04:15 -07:00
range-diff.h
reachable.c
reachable.h
read-cache-ll.h
read-cache.c
read-cache.h
rebase-interactive.c
rebase-interactive.h
rebase.c parse: separate out parsing functions from config.h 2023-09-29 15:14:57 -07:00
rebase.h
ref-filter.c ref-filter: add mailmap support 2023-09-25 14:52:34 -07:00
ref-filter.h
reflog-walk.c
reflog-walk.h
reflog.c
reflog.h
refs.c
refs.h
refspec.c
refspec.h
remote-curl.c
remote.c
remote.h
replace-object.c
replace-object.h
repo-settings.c
repository.c
repository.h
rerere.c Merge branch 'jc/unresolve-removal' 2023-10-02 11:20:00 -07:00
rerere.h
reset.c
reset.h
resolve-undo.c Merge branch 'jc/unresolve-removal' 2023-10-02 11:20:00 -07:00
resolve-undo.h
revision.c rev-list: add commit object support in `--missing` option 2023-11-01 12:07:18 +09:00
revision.h rev-list: add commit object support in `--missing` option 2023-11-01 12:07:18 +09:00
run-command.c
run-command.h
sane-ctype.h
scalar.c Merge branch 'ds/scalar-updates' into maint-2.42 2023-11-02 16:53:15 +09:00
send-pack.c
send-pack.h
sequencer.c Merge branch 'ob/sequencer-remove-dead-code' into maint-2.42 2023-11-02 16:53:24 +09:00
sequencer.h
serve.c
serve.h
server-info.c
server-info.h
setup.c setup: fix leaking repository format 2023-11-07 08:51:41 +09:00
setup.h Merge branch 'ds/scalar-updates' into maint-2.42 2023-11-02 16:53:15 +09:00
sh-i18n--envsubst.c
sha1dc_git.c
sha1dc_git.h
shallow.c shallow: fix memory leak when registering shallow roots 2023-11-07 08:51:41 +09:00
shallow.h
shared.mak
shell.c
shortlog.h
sideband.c
sideband.h
sigchain.c
sigchain.h
simple-ipc.h
sparse-index.c read_tree(): respect max_allowed_tree_depth 2023-08-31 15:51:08 -07:00
sparse-index.h
split-index.c
split-index.h
stable-qsort.c
statinfo.c Prevent git from rehashing 4GiB files 2023-10-13 13:33:35 -07:00
statinfo.h
strbuf.c hex-ll: separate out non-hash-algo functions 2023-09-29 15:14:56 -07:00
strbuf.h doc: fix some typos, grammar and wording issues 2023-10-05 12:55:38 -07:00
streaming.c
streaming.h
string-list.c
string-list.h
strmap.c
strmap.h
strvec.c strvec: drop unnecessary include of hex.h 2023-11-03 08:26:55 +09:00
strvec.h
sub-process.c
sub-process.h
submodule-config.c
submodule-config.h
submodule.c
submodule.h
symlinks.c
symlinks.h
tag.c
tag.h
tar.h
tempfile.c
tempfile.h
thread-utils.c
thread-utils.h
tmp-objdir.c
tmp-objdir.h
trace.c
trace.h
trace2.c
trace2.h
trailer.c trailer: split process_command_line_args into separate functions 2023-09-11 10:01:19 -07:00
trailer.h trailer: separate public from internal portion of trailer_iterator 2023-09-11 10:01:18 -07:00
transport-helper.c
transport-internal.h
transport.c
transport.h
tree-diff.c tree-diff: respect max_allowed_tree_depth 2023-08-31 15:51:08 -07:00
tree-walk.c traverse_trees(): respect max_allowed_tree_depth 2023-08-31 15:51:08 -07:00
tree-walk.h tree-walk: drop MAX_TRAVERSE_TREES macro 2023-08-31 15:51:07 -07:00
tree.c read_tree(): respect max_allowed_tree_depth 2023-08-31 15:51:08 -07:00
tree.h read_tree(): respect max_allowed_tree_depth 2023-08-31 15:51:08 -07:00
unicode-width.h unicode: update the width tables to Unicode 15.1 2023-09-25 16:17:28 -07:00
unimplemented.sh
unix-socket.c
unix-socket.h
unix-stream-server.c
unix-stream-server.h
unpack-trees.c Merge branch 'cw/prelim-cleanup' 2023-10-10 11:39:14 -07:00
unpack-trees.h tree-walk: drop MAX_TRAVERSE_TREES macro 2023-08-31 15:51:07 -07:00
upload-pack.c Merge branch 'ds/upload-pack-error-sequence-fix' into maint-2.42 2023-11-02 16:53:20 +09:00
upload-pack.h
url.c hex-ll: separate out non-hash-algo functions 2023-09-29 15:14:56 -07:00
url.h
urlmatch.c hex-ll: separate out non-hash-algo functions 2023-09-29 15:14:56 -07:00
urlmatch.h
usage.c
userdiff.c
userdiff.h
utf8.c
utf8.h
varint.c
varint.h
version.c
version.h
versioncmp.c
versioncmp.h
walker.c
walker.h
wildmatch.c
wildmatch.h
worktree.c worktree: mark unused parameters in noop repair callback 2023-08-29 17:56:25 -07:00
worktree.h
wrap-for-bin.sh
wrapper.c parse: separate out parsing functions from config.h 2023-09-29 15:14:57 -07:00
wrapper.h wrapper: reduce scope of remove_or_warn() 2023-09-29 15:14:56 -07:00
write-or-die.c parse: separate out parsing functions from config.h 2023-09-29 15:14:57 -07:00
write-or-die.h
ws.c
ws.h
wt-status.c Merge branch 'jk/diff-result-code-cleanup' into maint-2.42 2023-11-02 16:53:16 +09:00
wt-status.h
xdiff-interface.c
xdiff-interface.h

README.md

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 and Documentation/CodingGuidelines).

Those wishing to help with error message, usage and informational message string translations (localization l10) should see po/README.md (a po file is a Portable Object file that holds the translations).

To subscribe to the list, send an email with just "subscribe git" in the body to majordomo@vger.kernel.org (not the Git list). The mailing list archives are available at https://lore.kernel.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