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Junio C Hamano bd2943265e Merge branch 'kk/streaming-walk-pqueue' into kk/no-walk-pathspec-fix * kk/streaming-walk-pqueue: (280 commits) revision: use priority queue for non-limited streaming walks revision: introduce rev_walk_mode to clarify get_revision_1() pack-objects: call release_revisions() after cruft traversal The 9th batch The 8th batch The 7th batch Start preparing for 2.54.1 The 6th batch send-pack: pass negotiation config in push remote: add remote..negotiationInclude config fetch: add --negotiation-include option for negotiation negotiator: add have_sent() interface remote: add remote..negotiationRestrict config transport: rename negotiation_tips fetch: add --negotiation-restrict option t5516: fix test order flakiness repack: allow `--write-midx=incremental` without `--geometric` repack: introduce `--write-midx=incremental` repack: implement incremental MIDX repacking packfile: ensure `close_pack_revindex()` frees in-memory revindex ...		2026-07-16 10:53:14 -07:00
.github	…
Documentation	The 9th batch	2026-05-27 14:15:46 +09:00
bin-wrappers	…
block-sha1	…
builtin	pack-objects: call release_revisions() after cruft traversal	2026-05-28 06:08:19 +09:00
ci	Merge branch 'jc/ci-enable-expensive'	2026-05-21 12:06:48 +09:00
compat	Merge branch 'js/mingw-no-nedmalloc' into maint-2.54	2026-05-21 12:28:55 +09:00
compiler-tricks	…
contrib	mingw: drop the build-system plumbing for nedmalloc	2026-05-09 11:19:23 +09:00
ewah	…
git-gui	…
gitk-git	…
gitweb	…
mergetools	…
negotiator	Merge branch 'ds/fetch-negotiation-options'	2026-05-27 14:15:45 +09:00
odb	Merge branch 'ps/odb-in-memory'	2026-05-27 14:15:46 +09:00
oss-fuzz	odb, packfile: use size_t for streaming object sizes	2026-05-09 11:25:31 +09:00
perl	…
po	…
refs	Merge branch 'kn/refs-fsck-skip-lock-files'	2026-05-27 14:15:44 +09:00
reftable	…
sha1	…
sha1collisiondetection@855827c583	…
sha1dc	…
sha256	…
src	…
subprojects	…
t	Merge branch 'ps/setup-wo-the-repository'	2026-05-27 14:15:46 +09:00
templates	…
tools	…
trace2	…
xdiff	Merge branch 'mm/diff-U-takes-no-negative-values'	2026-05-25 09:40:07 +09:00
.cirrus.yml	…
.clang-format	…
.editorconfig	…
.gitattributes	…
.gitignore	Merge branch 'mm/git-url-parse'	2026-05-21 12:06:48 +09:00
.gitlab-ci.yml	…
.gitmodules	…
.mailmap	…
.tsan-suppressions	…
CODE_OF_CONDUCT.md	…
COPYING	…
Cargo.toml	…
GIT-BUILD-OPTIONS.in	…
GIT-VERSION-FILE.in	…
GIT-VERSION-GEN	…
INSTALL	…
LGPL-2.1	…
Makefile	Merge branch 'ps/odb-in-memory'	2026-05-27 14:15:46 +09:00
README.md	…
RelNotes	Start preparing for 2.54.1	2026-05-21 12:42:11 +09:00
SECURITY.md	…
abspath.c	…
abspath.h	…
aclocal.m4	…
add-interactive.c	…
add-interactive.h	…
add-patch.c	…
add-patch.h	…
advice.c	…
advice.h	…
alias.c	…
alias.h	…
alloc.c	…
alloc.h	…
apply.c	apply: plug leak on "patch too large" error	2026-05-16 13:51:16 +09:00
apply.h	…
archive-tar.c	…
archive-zip.c	…
archive.c	setup: stop using `the_repository` in `setup_git_directory()`	2026-05-19 19:36:25 +09:00
archive.h	…
attr.c	…
attr.h	…
banned.h	…
base85.c	…
base85.h	…
bisect.c	…
bisect.h	…
blame.c	setup: stop using `the_repository` in `setup_work_tree()`	2026-05-19 19:36:24 +09:00
blame.h	…
blob.c	…
blob.h	…
bloom.c	…
bloom.h	…
branch.c	…
branch.h	…
build.rs	…
builtin.h	Merge branch 'mm/git-url-parse'	2026-05-21 12:06:48 +09:00
bundle-uri.c	…
bundle-uri.h	…
bundle.c	…
bundle.h	…
cache-tree.c	Merge branch 'jt/odb-transaction-write'	2026-05-27 14:15:45 +09:00
cache-tree.h	…
cbtree.c	cbtree: allow using arbitrary wrapper structures for nodes	2026-05-15 04:50:45 +09:00
cbtree.h	cbtree: allow using arbitrary wrapper structures for nodes	2026-05-15 04:50:45 +09:00
chdir-notify.c	…
chdir-notify.h	…
checkout.c	…
checkout.h	…
chunk-format.c	…
chunk-format.h	…
color.c	…
color.h	…
column.c	…
column.h	…
combine-diff.c	…
command-list.txt	Merge branch 'mm/git-url-parse'	2026-05-21 12:06:48 +09:00
commit-graph.c	…
commit-graph.h	…
commit-reach.c	commit-reach: early exit paint_down_to_common for single merge-base	2026-05-12 09:33:43 +09:00
commit-reach.h	commit-reach: early exit paint_down_to_common for single merge-base	2026-05-12 09:33:43 +09:00
commit-slab-decl.h	…
commit-slab-impl.h	…
commit-slab.h	…
commit.c	revision: use priority queue for non-limited streaming walks	2026-05-28 06:08:20 +09:00
commit.h	revision: use priority queue for non-limited streaming walks	2026-05-28 06:08:20 +09:00
common-exit.c	…
common-init.c	…
common-init.h	…
common-main.c	…
config.c	…
config.h	…
config.mak.dev	Merge branch 'ps/clang-w-glibc-2.43-and-_Generic' into maint-2.54	2026-05-21 12:23:51 +09:00
config.mak.in	…
config.mak.uname	Merge branch 'js/mingw-no-nedmalloc'	2026-05-20 10:30:56 +09:00
configure.ac	…
connect.c	Merge branch 'mm/git-url-parse'	2026-05-21 12:06:48 +09:00
connect.h	…
connected.c	…
connected.h	…
convert.c	…
convert.h	…
copy.c	…
copy.h	…
credential.c	…
credential.h	…
csum-file.c	…
csum-file.h	…
ctype.c	…
daemon.c	setup: stop using `the_repository` in `enter_repo()`	2026-05-19 19:36:24 +09:00
date.c	…
date.h	…
decorate.c	…
decorate.h	…
delta-islands.c	…
delta-islands.h	…
delta.h	delta, packfile: use size_t for delta header sizes	2026-05-09 11:25:32 +09:00
diagnose.c	…
diagnose.h	…
diff-delta.c	…
diff-lib.c	…
diff-merges.c	…
diff-merges.h	…
diff-no-index.c	…
diff.c	Merge branch 'mm/diff-U-takes-no-negative-values'	2026-05-25 09:40:07 +09:00
diff.h	diff: reject negative values for -U/--unified	2026-05-13 10:13:26 +09:00
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	ignore: note info/exclude lives in GIT_COMMON_DIR, not GIT_DIR	2026-05-13 10:25:52 +09:00
dir.h	ignore: note info/exclude lives in GIT_COMMON_DIR, not GIT_DIR	2026-05-13 10:25:52 +09:00
editor.c	…
editor.h	…
entry.c	…
entry.h	…
environment.c	…
environment.h	setup: stop using `the_repository` in `setup_git_env()`	2026-05-19 19:36:24 +09:00
exec-cmd.c	…
exec-cmd.h	…
fetch-negotiator.c	…
fetch-negotiator.h	negotiator: add have_sent() interface	2026-05-20 11:33:24 +09:00
fetch-pack.c	Merge branch 'ds/fetch-negotiation-options'	2026-05-27 14:15:45 +09:00
fetch-pack.h	fetch: add --negotiation-include option for negotiation	2026-05-20 11:33:24 +09:00
fmt-merge-msg.c	…
fmt-merge-msg.h	…
for-each-ref.h	…
fsck.c	…
fsck.h	…
fsmonitor--daemon.h	…
fsmonitor-ipc.c	…
fsmonitor-ipc.h	…
fsmonitor-ll.h	…
fsmonitor-path-utils.h	…
fsmonitor-settings.c	…
fsmonitor-settings.h	…
fsmonitor.c	…
fsmonitor.h	…
gettext.c	…
gettext.h	…
git-archimport.perl	…
git-compat-util.h	Merge branch 'rs/use-builtin-add-overflow-explicitly-on-clang'	2026-05-27 14:15:45 +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-quiltimport.sh	…
git-request-pull.sh	…
git-send-email.perl	…
git-sh-i18n.sh	…
git-sh-setup.sh	…
git-submodule.sh	…
git-svn.perl	…
git-web--browse.sh	…
git-zlib.c	git-zlib: handle data streams larger than 4GB	2026-05-09 11:25:31 +09:00
git-zlib.h	git-zlib: handle data streams larger than 4GB	2026-05-09 11:25:31 +09:00
git.c	Merge branch 'ps/setup-wo-the-repository'	2026-05-27 14:15:46 +09:00
git.rc.in	…
gpg-interface.c	…
gpg-interface.h	…
graph.c	…
graph.h	…
grep.c	…
grep.h	…
hash-lookup.c	…
hash-lookup.h	…
hash.c	…
hash.h	…
hashmap.c	…
hashmap.h	…
help.c	Merge branch 'jh/alias-i18n-fixes' into maint-2.54	2026-05-21 12:30:11 +09:00
help.h	…
hex-ll.c	…
hex-ll.h	…
hex.c	…
hex.h	…
hook.c	…
hook.h	…
http-backend.c	setup: stop using `the_repository` in `enter_repo()`	2026-05-19 19:36:24 +09:00
http-fetch.c	setup: stop using `the_repository` in `setup_git_directory_gently()`	2026-05-19 19:36:24 +09:00
http-push.c	setup: stop using `the_repository` in `setup_git_directory()`	2026-05-19 19:36:25 +09:00
http-walker.c	Merge branch 'jk/dumb-http-alternate-fix'	2026-05-25 09:40:08 +09:00
http.c	Merge branch 'aw/validate-proxy-url-scheme'	2026-05-21 12:06:48 +09:00
http.h	…
ident.c	…
ident.h	…
imap-send.c	setup: stop using `the_repository` in `setup_git_directory_gently()`	2026-05-19 19:36:24 +09:00
iterator.h	…
json-writer.c	…
json-writer.h	…
khash.h	…
kwset.c	…
kwset.h	…
levenshtein.c	…
levenshtein.h	…
line-log.c	setup: stop using `the_repository` in `prefix_path()`	2026-05-19 19:36:24 +09:00
line-log.h	…
line-range.c	…
line-range.h	…
linear-assignment.c	…
linear-assignment.h	…
list-objects-filter-options.c	setup: stop using `the_repository` in `upgrade_repository_format()`	2026-05-19 19:36:25 +09:00
list-objects-filter-options.h	…
list-objects-filter.c	…
list-objects-filter.h	…
list-objects.c	…
list-objects.h	…
list.h	…
lockfile.c	…
lockfile.h	…
log-tree.c	…
log-tree.h	…
loose.c	oidtree: add ability to store data	2026-05-15 04:50:45 +09:00
loose.h	…
ls-refs.c	…
ls-refs.h	…
mailinfo.c	…
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-ort.h	…
merge.c	…
merge.h	…
mergesort.h	…
meson.build	Merge branch 'ps/odb-in-memory'	2026-05-27 14:15:46 +09:00
meson_options.txt	…
midx-write.c	midx: support custom `--base` for incremental MIDX writes	2026-05-20 11:31:13 +09:00
midx.c	repack: introduce `--write-midx=incremental`	2026-05-20 11:31:14 +09:00
midx.h	repack: introduce `--write-midx=incremental`	2026-05-20 11:31:14 +09:00
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-convert.c	…
object-file-convert.h	…
object-file.c	Merge branch 'ps/odb-in-memory'	2026-05-27 14:15:46 +09:00
object-file.h	…
object-name.c	setup: stop using `the_repository` in `prefix_path()`	2026-05-19 19:36:24 +09:00
object-name.h	…
object.c	…
object.h	…
odb.c	Merge branch 'jt/odb-transaction-write'	2026-05-27 14:15:45 +09:00
odb.h	Merge branch 'jt/odb-transaction-write'	2026-05-27 14:15:45 +09:00
oid-array.c	…
oid-array.h	…
oidmap.c	…
oidmap.h	…
oidset.c	…
oidset.h	…
oidtree.c	oidtree: add ability to store data	2026-05-15 04:50:45 +09:00
oidtree.h	oidtree: add ability to store data	2026-05-15 04:50:45 +09:00
pack-bitmap-write.c	pack-bitmap: fix pseudo-merge lookup for shared commits	2026-05-12 10:36:18 +09:00
pack-bitmap.c	odb, packfile: use size_t for streaming object sizes	2026-05-09 11:25:31 +09:00
pack-bitmap.h	…
pack-check.c	odb, packfile: use size_t for streaming object sizes	2026-05-09 11:25:31 +09:00
pack-mtimes.c	…
pack-mtimes.h	…
pack-objects.c	…
pack-objects.h	…
pack-refs.c	…
pack-refs.h	…
pack-revindex.c	…
pack-revindex.h	…
pack-write.c	…
pack.h	…
packfile.c	Merge branch 'tb/incremental-midx-part-3.3'	2026-05-27 14:15:45 +09:00
packfile.h	odb, packfile: use size_t for streaming object sizes	2026-05-09 11:25:31 +09:00
pager.c	…
pager.h	…
parallel-checkout.c	…
parallel-checkout.h	…
parse-options-cb.c	…
parse-options.c	…
parse-options.h	parse-options: clarify what "negated" means for PARSE_OPT_NONEG	2026-05-13 10:13:26 +09:00
parse.c	…
parse.h	…
patch-delta.c	…
patch-ids.c	…
patch-ids.h	patch-ids.h: add missing trailing parenthesis in documentation comment	2026-05-15 04:24:54 +09:00
path-walk.c	…
path-walk.h	…
path.c	…
path.h	…
pathspec.c	setup: stop using `the_repository` in `prefix_path()`	2026-05-19 19:36:24 +09:00
pathspec.h	…
pkt-line.c	…
pkt-line.h	…
preload-index.c	…
preload-index.h	…
pretty.c	Merge branch 'jk/pretty-no-strbuf-presizing'	2026-05-25 09:40:08 +09:00
pretty.h	…
prio-queue.c	…
prio-queue.h	…
progress.c	…
progress.h	…
promisor-remote.c	…
promisor-remote.h	promisor-remote: document caller filtering contract	2026-05-15 04:24:54 +09:00
prompt.c	…
prompt.h	…
protocol-caps.c	…
protocol-caps.h	…
protocol.c	…
protocol.h	…
prune-packed.c	…
prune-packed.h	…
pseudo-merge.c	pack-bitmap: prevent pattern leak on pseudo-merge re-assignment	2026-05-12 10:36:18 +09:00
pseudo-merge.h	…
quote.c	quote: simplify internals of dequoting	2026-05-19 12:14:03 +09:00
quote.h	quote: drop sq_dequote_to_argv()	2026-05-19 12:14:03 +09:00
range-diff.c	…
range-diff.h	…
reachable.c	…
reachable.h	…
read-cache-ll.h	…
read-cache.c	Merge branch 'jt/odb-transaction-write'	2026-05-27 14:15:45 +09:00
read-cache.h	…
rebase-interactive.c	…
rebase-interactive.h	…
rebase.c	…
rebase.h	…
ref-filter.c	…
ref-filter.h	…
reflog-walk.c	…
reflog-walk.h	…
reflog.c	…
reflog.h	…
refs.c	Merge branch 'ps/setup-wo-the-repository'	2026-05-27 14:15:46 +09:00
refs.h	…
refspec.c	…
refspec.h	…
remote-curl.c	Merge branch 'ps/setup-wo-the-repository'	2026-05-27 14:15:46 +09:00
remote.c	Merge branch 'ds/fetch-negotiation-options'	2026-05-27 14:15:45 +09:00
remote.h	remote: add remote.*.negotiationInclude config	2026-05-20 11:33:24 +09:00
repack-cruft.c	…
repack-filtered.c	…
repack-geometry.c	repack: introduce `--write-midx=incremental`	2026-05-20 11:31:14 +09:00
repack-midx.c	repack: allow `--write-midx=incremental` without `--geometric`	2026-05-20 11:31:14 +09:00
repack-promisor.c	…
repack.c	repack: introduce `--write-midx=incremental`	2026-05-20 11:31:14 +09:00
repack.h	repack: introduce `--write-midx=incremental`	2026-05-20 11:31:14 +09:00
replace-object.c	…
replace-object.h	…
replay.c	…
replay.h	…
repo-settings.c	…
repo-settings.h	…
repository.c	…
repository.h	setup: stop using `the_repository` in `upgrade_repository_format()`	2026-05-19 19:36:25 +09:00
rerere.c	…
rerere.h	…
reset.c	…
reset.h	…
resolve-undo.c	…
resolve-undo.h	…
revision.c	revision: use priority queue for non-limited streaming walks	2026-05-28 06:08:20 +09:00
revision.h	revision: use priority queue for non-limited streaming walks	2026-05-28 06:08:20 +09:00
run-command.c	run-command: honor "gc.auto" for auto-maintenance	2026-05-13 16:57:54 +09:00
run-command.h	…
sane-ctype.h	…
scalar.c	setup: stop using `the_repository` in `setup_git_directory()`	2026-05-19 19:36:25 +09:00
send-pack.c	Merge branch 'ds/fetch-negotiation-options'	2026-05-27 14:15:45 +09:00
send-pack.h	send-pack: pass negotiation config in push	2026-05-20 11:33:24 +09:00
sequencer.c	Merge branch 'ag/sequencer-remove-unused-struct-member'	2026-05-25 09:40:07 +09:00
sequencer.h	…
serve.c	…
serve.h	…
server-info.c	…
server-info.h	…
setup.c	Merge branch 'ps/setup-wo-the-repository'	2026-05-27 14:15:46 +09:00
setup.h	Merge branch 'ps/setup-wo-the-repository'	2026-05-27 14:15:46 +09:00
sh-i18n--envsubst.c	…
sha1dc_git.c	…
sha1dc_git.h	…
shallow.c	shallow: fix relative deepen on non-shallow repositories	2026-05-12 09:00:16 +09:00
shallow.h	…
shared.mak	…
shell.c	…
shortlog.h	…
sideband.c	Merge branch 'rs/sideband-clear-line-before-print'	2026-05-19 09:57:46 +09:00
sideband.h	…
sigchain.c	…
sigchain.h	…
simple-ipc.h	…
sparse-index.c	…
sparse-index.h	…
split-index.c	…
split-index.h	…
stable-qsort.c	…
statinfo.c	…
statinfo.h	…
strbuf.c	strbuf: use st_add3() in strbuf_grow()	2026-05-19 09:52:22 +09:00
strbuf.h	…
string-list.c	…
string-list.h	…
strmap.c	…
strmap.h	…
strvec.c	…
strvec.h	…
sub-process.c	…
sub-process.h	…
submodule-config.c	Merge branch 'sj/submodule-update-clone-config-fix'	2026-05-19 09:57:46 +09:00
submodule-config.h	…
submodule.c	setup: stop using `the_repository` in `is_inside_work_tree()`	2026-05-19 19:36:23 +09:00
submodule.h	…
symlinks.c	…
symlinks.h	…
tag.c	…
tag.h	…
tar.h	…
tempfile.c	builtin/maintenance: fix locking with "--detach"	2026-05-13 16:57:53 +09:00
tempfile.h	builtin/maintenance: fix locking with "--detach"	2026-05-13 16:57:53 +09:00
thread-utils.c	…
thread-utils.h	…
tmp-objdir.c	…
tmp-objdir.h	…
trace.c	…
trace.h	…
trace2.c	…
trace2.h	…
trailer.c	trailer: change strbuf in-place in unfold_value()	2026-05-16 22:11:07 +09:00
trailer.h	…
transport-helper.c	Merge branch 'ds/fetch-negotiation-options'	2026-05-27 14:15:45 +09:00
transport-internal.h	…
transport.c	Merge branch 'ds/fetch-negotiation-options'	2026-05-27 14:15:45 +09:00
transport.h	fetch: add --negotiation-include option for negotiation	2026-05-20 11:33:24 +09:00
tree-diff.c	…
tree-walk.c	…
tree-walk.h	…
tree.c	…
tree.h	…
unicode-width.h	…
unimplemented.sh	…
unix-socket.c	…
unix-socket.h	…
unix-stream-server.c	…
unix-stream-server.h	…
unpack-trees.c	…
unpack-trees.h	…
upload-pack.c	…
upload-pack.h	…
url.c	…
url.h	…
urlmatch.c	…
urlmatch.h	…
usage.c	…
userdiff.c	…
userdiff.h	…
utf8.c	…
utf8.h	…
varint.c	…
varint.h	…
version-def.h.in	…
version.c	…
version.h	…
versioncmp.c	…
versioncmp.h	…
walker.c	…
walker.h	…
wildmatch.c	…
wildmatch.h	…
worktree.c	setup: stop using `the_repository` in `upgrade_repository_format()`	2026-05-19 19:36:25 +09:00
worktree.h	…
wrapper.c	…
wrapper.h	…
write-or-die.c	…
write-or-die.h	…
ws.c	…
ws.h	…
wt-status.c	setup: stop using `the_repository` in `setup_work_tree()`	2026-05-19 19:36:24 +09:00
wt-status.h	…
xdiff-interface.c	…
xdiff-interface.h	…

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.adoc to get started, then see Documentation/giteveryday.adoc for a useful minimum set of commands, and Documentation/git-<commandname>.adoc 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.adoc (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 to git+subscribe@vger.kernel.org (see https://subspace.kernel.org/subscribing.html for details). The mailing list archives are available at https://lore.kernel.org/git/, https://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