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Jeff King 9a8c3c4a5f parse_object(): check commit-graph when skip_hash set If the caller told us that they don't care about us checking the object hash, then we're free to implement any optimizations that get us the parsed value more quickly. An obvious one is to check the commit graph before loading an object from disk. And in fact, both of the callers who pass in this flag are already doing so before they call parse_object()! So we can simplify those callers, as well as any possible future ones, by moving the logic into parse_object(). There are two subtle things to note in the diff, but neither has any impact in practice: - it seems least-surprising here to do the graph lookup on the git-replace'd oid, rather than the original. This is in theory a change of behavior from the earlier code, as neither caller did a replace lookup itself. But in practice it doesn't matter, as we disable the commit graph entirely if there are any replace refs. - the caller in get_reference() passes the skip_hash flag only if revs->verify_objects isn't set, whereas it would look in the commit graph unconditionally. In practice this should not matter as we should disable the commit graph entirely when using verify_objects (and that was done recently in another patch). So this should be a pure cleanup with no behavior change. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>		2022-09-07 12:27:02 -07:00
.github	ci: update 'static-analysis' to Ubuntu 22.04	2022-08-24 13:02:12 -07:00
Documentation	The eighteenth batch	2022-09-05 18:33:41 -07:00
block-sha1	…
builtin	Merge branch 'bc/gc-crontab-fix'	2022-09-05 18:33:41 -07:00
ci	CI: use "GIT_TEST_SANITIZE_LEAK_LOG=true" in linux-leaks	2022-07-27 16:35:40 -07:00
compat	Merge branch 'js/safe-directory-plus' into maint	2022-08-26 11:13:12 -07:00
contrib	Merge branch 'jd/prompt-show-conflict'	2022-08-29 14:55:12 -07:00
ewah	…
git-gui	…
gitk-git	…
gitweb	Merge branch 'jr/gitweb-title-shortening'	2022-08-05 15:52:14 -07:00
mergetools	mergetools: vimdiff: simplify tabfirst	2022-08-10 12:39:39 -07:00
negotiator	…
perl	…
po	…
ppc	…
refs	…
reftable	reftable: drop unused parameter from reader_seek_linear()	2022-08-20 14:14:55 -07:00
sha1collisiondetection@855827c583	…
sha1dc	…
sha256	sha256: add support for Nettle	2022-07-10 14:43:34 -07:00
t	upload-pack: skip parse-object re-hashing of "want" objects	2022-09-07 12:20:02 -07:00
templates	…
trace2	tr2: shows scope unconditionally in addition to key-value pair	2022-08-11 21:05:00 -07:00
xdiff	xdiff: drop unused mmfile parameters from xdl_do_patience_diff()	2022-08-20 14:14:55 -07:00
.cirrus.yml	…
.clang-format	…
.editorconfig	…
.gitattributes	…
.gitignore	builtin/diagnose.c: create 'git diagnose' builtin	2022-08-12 13:20:02 -07:00
.gitmodules	…
.mailmap	…
.tsan-suppressions	…
CODE_OF_CONDUCT.md	…
COPYING	…
GIT-VERSION-GEN	Git 2.37.3	2022-08-30 10:22:10 -07:00
INSTALL	…
LGPL-2.1	…
Makefile	Merge branch 'ds/bundle-uri-clone'	2022-09-01 13:40:17 -07:00
README.md	…
RelNotes	A handful more topics from the 'master' front for 2.37.3	2022-08-26 11:13:13 -07:00
SECURITY.md	…
abspath.c	…
aclocal.m4	…
add-interactive.c	Merge 'js/add-i-delete' into maint-2.37	2022-07-04 13:40:59 -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	match_pathname(): drop unused "flags" parameter	2022-08-19 12:20:56 -07:00
attr.h	…
banned.h	…
base85.c	…
bisect.c	revisions API: don't leak memory on argv elements that need free()-ing	2022-08-03 11:12:36 -07:00
bisect.h	…
blame.c	Merge branch 'rs/mergesort'	2022-08-03 13:36:09 -07:00
blame.h	…
blob.c	…
blob.h	…
bloom.c	commit-graph: fix corrupt upgrade from generation v1 to v2	2022-07-15 16:51:39 -07:00
bloom.h	…
branch.c	branch: consider refs under 'update-refs'	2022-07-19 12:49:03 -07:00
branch.h	Merge branch 'ds/branch-checked-out' into ds/rebase-update-ref	2022-07-12 08:38:42 -07:00
builtin.h	builtin/diagnose.c: create 'git diagnose' builtin	2022-08-12 13:20:02 -07:00
bulk-checkin.c	t5351: avoid relying on `core.fsyncMethod = batch` to be supported	2022-07-29 09:08:57 -07:00
bulk-checkin.h	…
bundle-uri.c	bundle-uri: add support for http(s):// and file://	2022-08-10 14:07:37 -07:00
bundle-uri.h	bundle-uri: create basic file-copy logic	2022-08-10 14:07:37 -07:00
bundle.c	…
bundle.h	…
cache-tree.c	verify_one_sparse(): drop unused parameters	2022-08-20 14:14:17 -07:00
cache-tree.h	…
cache.h	Merge branch 'ds/decorate-filter-tweak'	2022-08-29 14:55:11 -07:00
cbtree.c	…
cbtree.h	…
chdir-notify.c	…
chdir-notify.h	…
check-builtins.sh	…
checkout.c	…
checkout.h	…
chunk-format.c	…
chunk-format.h	…
color.c	…
color.h	…
column.c	…
column.h	…
combine-diff.c	Merge branch 'rs/combine-diff-with-incompatible-options' into maint	2022-07-27 13:00:32 -07:00
command-list.txt	docs: move http-protocol docs to man section 5	2022-08-04 14:12:24 -07:00
commit-graph.c	Merge branch 'tb/commit-graph-genv2-upgrade-fix' into maint	2022-08-10 21:52:35 -07:00
commit-graph.h	Merge branch 'tb/commit-graph-genv2-upgrade-fix'	2022-08-03 13:36:08 -07:00
commit-reach.c	…
commit-reach.h	…
commit-slab-decl.h	…
commit-slab-impl.h	…
commit-slab.h	…
commit.c	Merge branch 'rs/mergesort'	2022-08-03 13:36:09 -07:00
commit.h	…
common-main.c	…
config.c	config.c: NULL check when reading protected config	2022-07-26 23:46:01 -07:00
config.h	config: learn `git_protected_config()`	2022-07-14 15:08:29 -07:00
config.mak.dev	config.mak.dev: squelch -Wno-missing-braces for older gcc	2022-07-31 11:50:07 -07:00
config.mak.in	…
config.mak.uname	mingw: remove unneeded `NO_CURL` directive	2022-07-29 09:48:17 -07:00
configure.ac	…
connect.c	…
connect.h	…
connected.c	…
connected.h	…
convert.c	…
convert.h	checkout: fix two bugs on the final count of updated entries	2022-07-14 10:19:28 -07:00
copy.c	…
credential.c	…
credential.h	…
csum-file.c	…
csum-file.h	…
ctype.c	…
daemon.c	daemon: clarify directory arguments	2022-07-19 12:45:31 -07:00
date.c	…
date.h	…
decorate.c	…
decorate.h	…
delta-islands.c	…
delta-islands.h	…
delta.h	…
detect-compiler	…
diagnose.c	builtin/diagnose.c: add '--mode' option	2022-08-12 13:20:02 -07:00
diagnose.h	builtin/diagnose.c: add '--mode' option	2022-08-12 13:20:02 -07:00
diff-delta.c	…
diff-lib.c	oneway_diff: handle removed sparse directories	2022-08-08 13:21:49 -07:00
diff-merges.c	…
diff-merges.h	…
diff-no-index.c	…
diff.c	parse-options: PARSE_OPT_KEEP_UNKNOWN only applies to --options	2022-08-19 11:13:14 -07:00
diff.h	…
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	match_pathname(): drop unused "flags" parameter	2022-08-19 12:20:56 -07:00
dir.h	match_pathname(): drop unused "flags" parameter	2022-08-19 12:20:56 -07:00
editor.c	…
entry.c	checkout: fix two bugs on the final count of updated entries	2022-07-14 10:19:28 -07:00
entry.h	checkout: fix two bugs on the final count of updated entries	2022-07-14 10:19:28 -07:00
environment.c	refs: use ref_namespaces for replace refs base	2022-08-05 14:13:12 -07:00
environment.h	…
exec-cmd.c	…
exec-cmd.h	…
fetch-negotiator.c	…
fetch-negotiator.h	…
fetch-pack.c	fetch-pack: add tracing for negotiation rounds	2022-08-15 09:17:03 -07:00
fetch-pack.h	…
fmt-merge-msg.c	…
fmt-merge-msg.h	…
fsck.c	fsck: actually detect bad file modes in trees	2022-08-10 14:26:27 -07:00
fsck.h	fsck: downgrade tree badFilemode to "info"	2022-08-10 14:26:29 -07:00
fsmonitor--daemon.h	…
fsmonitor-ipc.c	…
fsmonitor-ipc.h	…
fsmonitor-settings.c	…
fsmonitor-settings.h	…
fsmonitor.c	…
fsmonitor.h	…
fuzz-commit-graph.c	commit-graph: pass repo_settings instead of repository	2022-07-14 15:42:17 -07:00
fuzz-pack-headers.c	…
fuzz-pack-idx.c	…
generate-cmdlist.sh	…
generate-configlist.sh	…
generate-hooklist.sh	…
gettext.c	…
gettext.h	…
git-add--interactive.perl	…
git-archimport.perl	…
git-bisect.sh	…
git-compat-util.h	Merge branch 'vd/scalar-generalize-diagnose'	2022-08-25 14:42:32 -07:00
git-curl-compat.h	…
git-cvsexportcommit.perl	…
git-cvsimport.perl	…
git-cvsserver.perl	git-cvsserver: clarify directory list	2022-07-19 12:45:31 -07:00
git-difftool--helper.sh	…
git-filter-branch.sh	…
git-instaweb.sh	…
git-merge-octopus.sh	…
git-merge-one-file.sh	…
git-merge-resolve.sh	merge-resolve: abort if index does not match HEAD	2022-07-22 21:45:22 -07:00
git-mergetool--lib.sh	…
git-mergetool.sh	…
git-p4.py	Merge branch 'kk/p4-client-name-encoding-fix' into maint	2022-08-10 21:52:33 -07:00
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.c	Merge branch 'sg/parse-options-subcommand'	2022-09-01 13:40:18 -07:00
git.rc	…
gpg-interface.c	gpg-interface: add function for converting trust level to string	2022-07-10 22:10:23 -07:00
gpg-interface.h	gpg-interface: add function for converting trust level to string	2022-07-10 22:10:23 -07:00
graph.c	…
graph.h	…
grep.c	…
grep.h	…
hash-lookup.c	…
hash-lookup.h	…
hash.h	sha256: add support for Nettle	2022-07-10 14:43:34 -07:00
hashmap.c	…
hashmap.h	…
help.c	git docs: add a category for file formats, protocols and interfaces	2022-08-04 14:12:23 -07:00
help.h	git docs: add a category for file formats, protocols and interfaces	2022-08-04 14:12:23 -07:00
hex.c	…
hook.c	Merge branch 'ab/hooks-regression-fix' into maint	2022-08-26 11:13:12 -07:00
hook.h	…
http-backend.c	…
http-fetch.c	…
http-push.c	…
http-walker.c	…
http.c	Merge branch 'll/curl-accept-language'	2022-07-19 16:40:19 -07:00
http.h	remote-curl: send Accept-Language header to server	2022-07-11 12:24:28 -07:00
ident.c	ident: rename commit_rewrite_person() to apply_mailmap_to_header()	2022-07-18 12:55:53 -07:00
imap-send.c	…
iterator.h	…
json-writer.c	…
json-writer.h	…
khash.h	…
kwset.c	…
kwset.h	…
levenshtein.c	…
levenshtein.h	…
line-log.c	…
line-log.h	…
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	…
list-objects.h	…
list.h	…
ll-merge.c	…
ll-merge.h	…
lockfile.c	…
lockfile.h	…
log-tree.c	Merge branch 'jk/unused-fixes'	2022-08-29 14:55:12 -07:00
log-tree.h	…
ls-refs.c	…
ls-refs.h	…
mailinfo.c	…
mailinfo.h	…
mailmap.c	…
mailmap.h	…
match-trees.c	…
mem-pool.c	…
mem-pool.h	…
merge-blobs.c	…
merge-blobs.h	…
merge-ort-wrappers.c	merge-ort-wrappers: make printed message match the one from recursive	2022-07-22 21:45:22 -07:00
merge-ort-wrappers.h	…
merge-ort.c	Merge branch 'en/ort-unused-code-removal'	2022-08-29 14:55:14 -07:00
merge-ort.h	…
merge-recursive.c	…
merge-recursive.h	…
merge.c	…
mergesort.h	mergesort: remove llist_mergesort()	2022-07-17 15:20:39 -07:00
midx.c	Merge branch 'ac/bitmap-lookup-table'	2022-09-05 18:33:39 -07:00
midx.h	pack-bitmap-write: learn pack.writeBitmapLookupTable and add tests	2022-08-26 10:13:54 -07:00
name-hash.c	…
notes-cache.c	…
notes-cache.h	…
notes-merge.c	…
notes-merge.h	…
notes-utils.c	…
notes-utils.h	…
notes.c	refs: add array of ref namespaces	2022-08-05 14:13:12 -07:00
notes.h	…
object-file.c	Merge branch 'hx/unpack-streaming'	2022-07-14 15:03:59 -07:00
object-name.c	…
object-store.h	…
object.c	parse_object(): check commit-graph when skip_hash set	2022-09-07 12:27:02 -07:00
object.h	parse_object(): allow skipping hash check	2022-09-07 12:18:57 -07:00
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: drop unused pack_idx_entry parameters	2022-08-28 13:23:37 -07:00
pack-bitmap.c	pack-bitmap: prepare to read lookup table extension	2022-08-26 10:13:58 -07:00
pack-bitmap.h	pack-bitmap: prepare to read lookup table extension	2022-08-26 10:13:58 -07:00
pack-check.c	…
pack-mtimes.c	…
pack-mtimes.h	…
pack-objects.c	…
pack-objects.h	pack-objects.h: remove outdated pahole results	2022-06-28 15:39:03 -07:00
pack-revindex.c	…
pack-revindex.h	docs: move pack format docs to man section 5	2022-08-04 14:12:24 -07:00
pack-write.c	…
pack.h	…
packfile.c	Merge branch 'jk/is-promisor-object-keep-tree-in-use'	2022-08-25 14:42:31 -07:00
packfile.h	…
pager.c	…
parallel-checkout.c	checkout: fix two bugs on the final count of updated entries	2022-07-14 10:19:28 -07:00
parallel-checkout.h	checkout: fix two bugs on the final count of updated entries	2022-07-14 10:19:28 -07:00
parse-options-cb.c	…
parse-options.c	parse-options: add support for parsing subcommands	2022-08-19 11:13:14 -07:00
parse-options.h	parse-options: add support for parsing subcommands	2022-08-19 11:13:14 -07:00
patch-delta.c	…
patch-ids.c	…
patch-ids.h	…
path.c	…
path.h	…
pathspec.c	pathspec.h: move pathspec_needs_expanded_index() from reset.c to here	2022-08-08 13:23:26 -07:00
pathspec.h	pathspec.h: move pathspec_needs_expanded_index() from reset.c to here	2022-08-08 13:23:26 -07:00
pkt-line.c	t0021: implementation the rot13-filter.pl script in C	2022-08-14 22:57:12 -07:00
pkt-line.h	Merge branch 'mt/rot13-in-c'	2022-08-29 14:55:11 -07:00
preload-index.c	preload-index: fix memleak	2022-08-22 15:08:30 -07:00
pretty.c	gpg-interface: add function for converting trust level to string	2022-07-10 22:10:23 -07:00
pretty.h	…
prio-queue.c	…
prio-queue.h	…
progress.c	…
progress.h	…
promisor-remote.c	Merge branch 'sg/xcalloc-cocci-fix'	2022-08-29 14:55:14 -07:00
promisor-remote.h	…
prompt.c	…
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	…
range-diff.h	…
reachable.c	…
reachable.h	…
read-cache.c	Merge branch 'vd/sparse-reset-checkout-fixes' into maint	2022-08-26 11:13:13 -07:00
rebase-interactive.c	sequencer: rewrite update-refs as user edits todo list	2022-07-19 12:49:04 -07:00
rebase-interactive.h	…
rebase.c	…
rebase.h	…
ref-filter.c	ref-filter: disable save_commit_buffer while traversing	2022-07-11 14:27:31 -07:00
ref-filter.h	…
reflog-walk.c	…
reflog-walk.h	…
reflog.c	…
reflog.h	…
refs.c	refs: use ref_namespaces for replace refs base	2022-08-05 14:13:12 -07:00
refs.h	refs: add array of ref namespaces	2022-08-05 14:13:12 -07:00
refspec.c	…
refspec.h	docs: move protocol-related docs to man section 5	2022-08-04 14:12:23 -07:00
remote-curl.c	remote-curl: add 'get' capability	2022-08-10 14:07:37 -07:00
remote.c	Merge branch 'ab/plug-revisions-leak'	2022-08-12 13:19:08 -07:00
remote.h	Merge branch 'rs/mergesort'	2022-08-03 13:36:09 -07:00
replace-object.c	…
replace-object.h	…
repo-settings.c	commit-graph: pass repo_settings instead of repository	2022-07-14 15:42:17 -07:00
repository.c	…
repository.h	commit-graph: pass repo_settings instead of repository	2022-07-14 15:42:17 -07:00
rerere.c	…
rerere.h	…
reset.c	…
reset.h	…
resolve-undo.c	…
resolve-undo.h	…
revision.c	parse_object(): check commit-graph when skip_hash set	2022-09-07 12:27:02 -07:00
revision.h	revision: allow --ancestry-path to take an argument	2022-08-19 10:45:08 -07:00
run-command.c	pipe_command(): mark stdin descriptor as non-blocking	2022-08-17 09:21:41 -07:00
run-command.h	…
send-pack.c	…
send-pack.h	…
sequencer.c	sequencer: do not translate command names	2022-08-19 13:46:37 -07:00
sequencer.h	sequencer: rewrite update-refs as user edits todo list	2022-07-19 12:49:04 -07:00
serve.c	…
serve.h	…
server-info.c	…
setup.c	Merge branch 'js/safe-directory-plus' into maint	2022-08-26 11:13:12 -07:00
sh-i18n--envsubst.c	…
sha1dc_git.c	…
sha1dc_git.h	…
shallow.c	…
shallow.h	…
shared.mak	cocci: add a "coccicheck-test" target and test *.cocci rules	2022-07-06 12:24:43 -07:00
shell.c	…
shortlog.h	…
sideband.c	…
sideband.h	…
sigchain.c	…
sigchain.h	…
simple-ipc.h	…
sparse-index.c	…
sparse-index.h	…
split-index.c	…
split-index.h	…
stable-qsort.c	…
strbuf.c	…
strbuf.h	…
streaming.c	…
streaming.h	…
string-list.c	…
string-list.h	…
strmap.c	…
strmap.h	…
strvec.c	…
strvec.h	…
sub-process.c	…
sub-process.h	…
submodule-config.c	…
submodule-config.h	…
submodule.c	Merge branch 'ab/leakfix'	2022-07-18 13:31:54 -07:00
submodule.h	…
symlinks.c	…
tag.c	…
tag.h	…
tar.h	…
tempfile.c	tempfile: avoid directory cleanup race	2022-08-27 10:17:46 -07:00
tempfile.h	tempfile: avoid directory cleanup race	2022-08-27 10:17:46 -07:00
thread-utils.c	…
thread-utils.h	…
tmp-objdir.c	…
tmp-objdir.h	…
trace.c	…
trace.h	…
trace2.c	…
trace2.h	…
trailer.c	…
trailer.h	…
transport-helper.c	…
transport-internal.h	…
transport.c	transport.c: avoid "whitelist"	2022-07-19 12:45:31 -07:00
transport.h	…
tree-diff.c	…
tree-walk.c	tree-walk: add a mechanism for getting non-canonicalized modes	2022-08-10 14:26:25 -07:00
tree-walk.h	tree-walk: add a mechanism for getting non-canonicalized modes	2022-08-10 14:26:25 -07:00
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	Merge branch 'vd/sparse-reset-checkout-fixes' into maint	2022-08-26 11:13:13 -07:00
unpack-trees.h	…
upload-pack.c	parse_object(): check commit-graph when skip_hash set	2022-09-07 12:27:02 -07:00
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.c	…
version.h	…
versioncmp.c	…
walker.c	…
walker.h	…
wildmatch.c	…
wildmatch.h	…
worktree.c	…
worktree.h	…
wrap-for-bin.sh	…
wrapper.c	Merge branch 'jk/pipe-command-nonblock'	2022-08-25 14:42:32 -07:00
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-<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