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Taylor Blau 88617d11f9 multi-pack-index: fix potential segfault without sub-command
Since cd57bc41bb (builtin/multi-pack-index.c: display usage on
unrecognized command, 2021-03-30) we have used a "usage" label to avoid
having two separate callers of usage_with_options (one when no arguments
are given, and another for unrecognized sub-commands).

But the first caller has been broken since cd57bc41bb, since it will
happily jump to usage without arguments, and then pass argv[0] to the
"unrecognized subcommand" error.

Many compilers will save us from a segfault here, but the end result is
ugly, since it mentions an unrecognized subcommand when we didn't even
pass one, and (on GCC) includes "(null)" in its output.

Move the "usage" label down past the error about unrecognized
subcommands so that it is only triggered when it should be. While we're
at it, bulk up our test coverage in this area, too.

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-07-19 15:24:01 -07:00
.github Merge branch 'tb/ci-run-cocci-with-18.04' into maint 2021-02-11 13:57:36 -08:00
block-sha1
builtin multi-pack-index: fix potential segfault without sub-command 2021-07-19 15:24:01 -07:00
ci Merge branch 'tb/pack-revindex-on-disk' 2021-02-12 14:21:04 -08:00
compat
contrib Merge branch 'jk/complete-branch-force-delete' 2021-02-12 14:21:04 -08:00
Documentation Documentation/technical: describe multi-pack reverse indexes 2021-04-01 13:07:37 -07:00
ewah
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t multi-pack-index: fix potential segfault without sub-command 2021-07-19 15:24:01 -07:00
templates
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.clang-format
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aclocal.m4
add-interactive.c
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
attr.h
banned.h
base85.c
bisect.c
bisect.h
blame.c
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blob.c
blob.h
bloom.c
bloom.h
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branch.h
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bulk-checkin.h
bundle.c
bundle.h
cache-tree.c
cache-tree.h
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chdir-notify.h
check_bindir
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chunk-format.c chunk-format: restore duplicate chunk checks 2021-02-18 13:38:16 -08:00
chunk-format.h chunk-format: create read chunk API 2021-02-18 13:38:16 -08:00
CODE_OF_CONDUCT.md
color.c
color.h
column.c
column.h
combine-diff.c
command-list.txt
commit-graph.c Merge branch 'ds/chunked-file-api' into tb/reverse-midx 2021-02-24 15:26:14 -08:00
commit-graph.h
commit-reach.c
commit-reach.h
commit-slab-decl.h
commit-slab-impl.h
commit-slab.h
commit.c Merge branch 'bc/signed-objects-with-both-hashes' 2021-02-22 16:12:42 -08:00
commit.h Merge branch 'bc/signed-objects-with-both-hashes' 2021-02-22 16:12:42 -08:00
common-main.c
config.c Merge branch 'ak/config-bad-bool-error' 2021-02-17 17:21:43 -08:00
config.h
config.mak.dev
config.mak.in
config.mak.uname
configure.ac
connect.c Merge branch 'jt/clone-unborn-head' 2021-02-17 17:21:40 -08:00
connect.h
connected.c
connected.h
convert.c
convert.h
copy.c
COPYING
credential.c
credential.h
csum-file.c
csum-file.h
ctype.c
daemon.c
date.c
decorate.c
decorate.h
delta-islands.c
delta-islands.h
delta.h
detect-compiler
diff-delta.c
diff-lib.c
diff-merges.c
diff-merges.h
diff-no-index.c
diff.c diff: plug memory leak from regcomp() on {log,diff} -I 2021-02-11 09:21:07 -08:00
diff.h diff: add an API for deferred freeing 2021-02-11 09:21:05 -08:00
diffcore-break.c
diffcore-delta.c
diffcore-order.c
diffcore-pickaxe.c
diffcore-rename.c
diffcore.h
dir-iterator.c
dir-iterator.h
dir.c
dir.h
editor.c
entry.c
environment.c
environment.h
exec-cmd.c
exec-cmd.h
fetch-negotiator.c
fetch-negotiator.h
fetch-pack.c
fetch-pack.h
fmt-merge-msg.c Merge branch 'bc/signed-objects-with-both-hashes' 2021-02-22 16:12:42 -08:00
fmt-merge-msg.h
fsck.c Merge branch 'js/fsck-name-objects-fix' 2021-02-17 17:21:42 -08:00
fsck.h
fsmonitor.c
fsmonitor.h
fuzz-commit-graph.c
fuzz-pack-headers.c
fuzz-pack-idx.c
generate-cmdlist.sh
generate-configlist.sh
gettext.c Merge branch 'ab/detox-gettext-tests' 2021-02-10 14:48:33 -08:00
gettext.h
git-add--interactive.perl
git-archimport.perl
git-bisect.sh
git-compat-util.h Merge branch 'tb/precompose-prefix-too' 2021-02-12 14:21:04 -08:00
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 Merge branch 'sh/mergetool-hideresolved' 2021-02-17 17:21:41 -08:00
git-mergetool.sh
git-p4.py
git-quiltimport.sh
git-rebase--preserve-merges.sh
git-request-pull.sh
git-send-email.perl
git-sh-i18n.sh
git-sh-setup.sh
git-submodule.sh
git-svn.perl
GIT-VERSION-GEN
git-web--browse.sh
git.c Merge branch 'tb/precompose-prefix-too' 2021-02-12 14:21:04 -08:00
git.rc
gpg-interface.c gpg-interface: remove other signature headers before verifying 2021-02-10 23:35:42 -08:00
gpg-interface.h gpg-interface: improve interface for parsing tags 2021-02-10 23:35:42 -08:00
graph.c
graph.h
grep.c
grep.h
hash-lookup.c
hash-lookup.h
hash.h
hashmap.c
hashmap.h
help.c
help.h
hex.c
http-backend.c
http-fetch.c
http-push.c
http-walker.c
http.c
http.h
ident.c
imap-send.c
INSTALL
iterator.h
json-writer.c
json-writer.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
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 'ab/diff-deferred-free' 2021-02-22 16:12:43 -08:00
log-tree.h
ls-refs.c Merge branch 'jt/clone-unborn-head' 2021-02-17 17:21:40 -08:00
ls-refs.h
mailinfo.c
mailinfo.h
mailmap.c
mailmap.h
Makefile Merge branch 'ds/chunked-file-api' into tb/reverse-midx 2021-02-24 15:26:14 -08:00
match-trees.c
mem-pool.c
mem-pool.h
merge-blobs.c
merge-blobs.h
merge-ort-wrappers.c
merge-ort-wrappers.h
merge-ort.c Merge branch 'en/ort-directory-rename' 2021-02-11 13:58:43 -08:00
merge-ort.h
merge-recursive.c
merge-recursive.h
merge.c
mergesort.c
mergesort.h
midx.c midx.c: improve cache locality in midx_pack_order_cmp() 2021-04-01 13:07:37 -07:00
midx.h pack-revindex: write multi-pack reverse indexes 2021-04-01 13:07:37 -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
notes.h
object-file.c
object-name.c
object-store.h
object.c
object.h
oid-array.c
oid-array.h
oidmap.c
oidmap.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: read multi-pack reverse indexes 2021-04-01 13:07:37 -07:00
pack-revindex.h pack-revindex: read multi-pack reverse indexes 2021-04-01 13:07:37 -07:00
pack-write.c pack-write.c: extract 'write_rev_file_order' 2021-04-01 13:07:37 -07:00
pack.h pack-write.c: extract 'write_rev_file_order' 2021-04-01 13:07:37 -07:00
packfile.c pack-revindex: read multi-pack reverse indexes 2021-04-01 13:07:37 -07:00
packfile.h
pager.c
parse-options-cb.c
parse-options.c
parse-options.h
patch-delta.c
patch-ids.c
patch-ids.h
path.c
path.h
pathspec.c
pathspec.h
pkt-line.c
pkt-line.h
preload-index.c
pretty.c
pretty.h
prio-queue.c
prio-queue.h
progress.c
progress.h
promisor-remote.c
promisor-remote.h
prompt.c
prompt.h
protocol.c
protocol.h
prune-packed.c
prune-packed.h
quote.c
quote.h
range-diff.c Merge branch 'js/range-diff-one-side-only' 2021-02-17 17:21:41 -08:00
range-diff.h Merge branch 'js/range-diff-one-side-only' 2021-02-17 17:21:41 -08:00
reachable.c
reachable.h
read-cache.c
README.md
rebase-interactive.c
rebase-interactive.h
rebase.c
rebase.h
ref-filter.c Merge branch 'bc/signed-objects-with-both-hashes' 2021-02-22 16:12:42 -08:00
ref-filter.h
reflog-walk.c
reflog-walk.h
refs.c
refs.h
refspec.c
refspec.h
RelNotes
remote-curl.c
remote.c
remote.h Merge branch 'jt/clone-unborn-head' 2021-02-17 17:21:40 -08:00
replace-object.c
replace-object.h
repo-settings.c
repository.c
repository.h
rerere.c
rerere.h
reset.c
reset.h
resolve-undo.c
resolve-undo.h
revision.c Merge branch 'ak/corrected-commit-date' 2021-02-17 17:21:40 -08:00
revision.h
run-command.c
run-command.h
send-pack.c
send-pack.h
sequencer.c
sequencer.h
serve.c
serve.h
server-info.c
setup.c
sh-i18n--envsubst.c
sha1dc_git.c
sha1dc_git.h
shallow.c
shallow.h
shell.c
shortlog.h
sideband.c
sideband.h
sigchain.c
sigchain.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
submodule.h
symlinks.c
tag.c gpg-interface: improve interface for parsing tags 2021-02-10 23:35:42 -08:00
tag.h
tar.h
tempfile.c
tempfile.h
thread-utils.c
thread-utils.h
tmp-objdir.c
tmp-objdir.h
trace2.c
trace2.h
trace.c
trace.h
trailer.c
trailer.h
transport-helper.c
transport-internal.h
transport.c
transport.h
tree-diff.c
tree-walk.c
tree-walk.h
tree.c
tree.h
unicode-width.h
unimplemented.sh
unix-socket.c
unix-socket.h
unpack-trees.c
unpack-trees.h
upload-pack.c Merge branch 'ak/corrected-commit-date' 2021-02-17 17:21:40 -08:00
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
write-or-die.c
ws.c
wt-status.c
wt-status.h
xdiff-interface.c
xdiff-interface.h
zlib.c

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