1 files changed, 383 insertions, 0 deletions
diff --git a/t/t5512-ls-remote.sh b/t/t5512-ls-remote.sh
new file mode 100755
index 0000000..5dbe107
--- /dev/null
+++ b/t/t5512-ls-remote.sh
@@ -0,0 +1,383 @@
+#!/bin/sh
+
+test_description='git ls-remote'
+
+GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
+export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
+
+. ./test-lib.sh
+
+generate_references () {
+	for ref
+	do
+		oid=$(git rev-parse "$ref") &&
+		printf '%s\t%s\n' "$oid" "$ref" || return 1
+	done
+}
+
+test_expect_success 'set up fake upload-pack' '
+	# This can be used to simulate an upload-pack that just shows the
+	# contents of the "input" file (prepared with the test-tool pkt-line
+	# helper), and does not do any negotiation (since ls-remote does not
+	# need it).
+	write_script cat-input <<-\EOF
+	# send our initial advertisement/response
+	cat input
+	# soak up the flush packet from the client
+	cat
+	EOF
+'
+
+test_expect_success 'dies when no remote found' '
+	test_must_fail git ls-remote
+'
+
+test_expect_success setup '
+	>file &&
+	git add file &&
+	test_tick &&
+	git commit -m initial &&
+	git tag mark &&
+	git tag mark1.1 &&
+	git tag mark1.2 &&
+	git tag mark1.10 &&
+	git show-ref --tags -d >expected.tag.raw &&
+	sed -e "s/ /	/" expected.tag.raw >expected.tag &&
+	generate_references HEAD >expected.all &&
+	git show-ref -d	>refs &&
+	sed -e "s/ /	/" refs >>expected.all &&
+
+	git remote add self "$(pwd)/.git" &&
+	git remote add self2 "."
+'
+
+test_expect_success 'ls-remote --tags .git' '
+	git ls-remote --tags .git >actual &&
+	test_cmp expected.tag actual
+'
+
+test_expect_success 'ls-remote .git' '
+	git ls-remote .git >actual &&
+	test_cmp expected.all actual
+'
+
+test_expect_success 'ls-remote --tags self' '
+	git ls-remote --tags self >actual &&
+	test_cmp expected.tag actual
+'
+
+test_expect_success 'ls-remote self' '
+	git ls-remote self >actual &&
+	test_cmp expected.all actual
+'
+
+test_expect_success 'ls-remote --sort="version:refname" --tags self' '
+	generate_references \
+		refs/tags/mark \
+		refs/tags/mark1.1 \
+		refs/tags/mark1.2 \
+		refs/tags/mark1.10 >expect &&
+	git ls-remote --sort="version:refname" --tags self >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'ls-remote --sort="-version:refname" --tags self' '
+	generate_references \
+		refs/tags/mark1.10 \
+		refs/tags/mark1.2 \
+		refs/tags/mark1.1 \
+		refs/tags/mark >expect &&
+	git ls-remote --sort="-version:refname" --tags self >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'ls-remote --sort="-refname" --tags self' '
+	generate_references \
+		refs/tags/mark1.2 \
+		refs/tags/mark1.10 \
+		refs/tags/mark1.1 \
+		refs/tags/mark >expect &&
+	git ls-remote --sort="-refname" --tags self >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'dies when no remote specified, multiple remotes found, and no default specified' '
+	test_must_fail git ls-remote
+'
+
+test_expect_success 'succeeds when no remote specified but only one found' '
+	test_when_finished git remote add self2 "." &&
+	git remote remove self2 &&
+	git ls-remote
+'
+
+test_expect_success 'use "origin" when no remote specified and multiple found' '
+	URL="$(pwd)/.git" &&
+	echo "From $URL" >exp_err &&
+
+	git remote add origin "$URL" &&
+	git ls-remote 2>actual_err >actual &&
+
+	test_cmp exp_err actual_err &&
+	test_cmp expected.all actual
+'
+
+test_expect_success 'suppress "From <url>" with -q' '
+	git ls-remote -q 2>actual_err &&
+	! test_cmp exp_err actual_err
+'
+
+test_expect_success 'use branch.<name>.remote if possible' '
+	#
+	# Test that we are indeed using branch.<name>.remote, not "origin", even
+	# though the "origin" remote has been set.
+	#
+
+	# setup a new remote to differentiate from "origin"
+	git clone . other.git &&
+	(
+		cd other.git &&
+		echo "$(git rev-parse HEAD)	HEAD" &&
+		git show-ref	| sed -e "s/ /	/"
+	) >exp &&
+
+	URL="other.git" &&
+	echo "From $URL" >exp_err &&
+
+	git remote add other $URL &&
+	git config branch.main.remote other &&
+
+	git ls-remote 2>actual_err >actual &&
+	test_cmp exp_err actual_err &&
+	test_cmp exp actual
+'
+
+test_expect_success 'confuses pattern as remote when no remote specified' '
+	if test_have_prereq MINGW
+	then
+		# Windows does not like asterisks in pathname
+		does_not_exist=main
+	else
+		does_not_exist="refs*main"
+	fi &&
+	cat >exp <<-EOF &&
+	fatal: '\''$does_not_exist'\'' does not appear to be a git repository
+	fatal: Could not read from remote repository.
+
+	Please make sure you have the correct access rights
+	and the repository exists.
+	EOF
+	#
+	# Do not expect "git ls-remote <pattern>" to work; ls-remote needs
+	# <remote> if you want to feed <pattern>, just like you cannot say
+	# fetch <branch>.
+	# We could just as easily have used "main"; the "*" emphasizes its
+	# role as a pattern.
+	test_must_fail git ls-remote "$does_not_exist" >actual 2>&1 &&
+	test_cmp exp actual
+'
+
+test_expect_success 'die with non-2 for wrong repository even with --exit-code' '
+	{
+		git ls-remote --exit-code ./no-such-repository
+		status=$?
+	} &&
+	test $status != 2 && test $status != 0
+'
+
+test_expect_success 'Report success even when nothing matches' '
+	git ls-remote other.git "refs/nsn/*" >actual &&
+	test_must_be_empty actual
+'
+
+test_expect_success 'Report no-match with --exit-code' '
+	test_expect_code 2 git ls-remote --exit-code other.git "refs/nsn/*" >actual &&
+	test_must_be_empty actual
+'
+
+test_expect_success 'Report match with --exit-code' '
+	git ls-remote --exit-code other.git "refs/tags/*" >actual &&
+	git ls-remote . tags/mark* >expect &&
+	test_cmp expect actual
+'
+
+test_expect_success 'set up some extra tags for ref hiding' '
+	git tag magic/one &&
+	git tag magic/two
+'
+
+for configsection in transfer uploadpack
+do
+	test_expect_success "Hide some refs with $configsection.hiderefs" '
+		test_config $configsection.hiderefs refs/tags &&
+		git ls-remote . >actual &&
+		test_unconfig $configsection.hiderefs &&
+		git ls-remote . >expect.raw &&
+		sed -e "/	refs\/tags\//d" expect.raw >expect &&
+		test_cmp expect actual
+	'
+
+	test_expect_success "Override hiding of $configsection.hiderefs" '
+		test_when_finished "test_unconfig $configsection.hiderefs" &&
+		git config --add $configsection.hiderefs refs/tags &&
+		git config --add $configsection.hiderefs "!refs/tags/magic" &&
+		git config --add $configsection.hiderefs refs/tags/magic/one &&
+		git ls-remote . >actual &&
+		grep refs/tags/magic/two actual &&
+		! grep refs/tags/magic/one actual
+	'
+
+done
+
+test_expect_success 'overrides work between mixed transfer/upload-pack hideRefs' '
+	test_config uploadpack.hiderefs refs/tags &&
+	test_config transfer.hiderefs "!refs/tags/magic" &&
+	git ls-remote . >actual &&
+	grep refs/tags/magic actual
+'
+
+test_expect_success 'protocol v2 supports hiderefs' '
+	test_config uploadpack.hiderefs refs/tags &&
+	git -c protocol.version=2 ls-remote . >actual &&
+	! grep refs/tags actual
+'
+
+test_expect_success 'ls-remote --symref' '
+	git fetch origin &&
+	echo "ref: refs/heads/main	HEAD" >expect.v2 &&
+	generate_references \
+		HEAD \
+		refs/heads/main >>expect.v2 &&
+	echo "ref: refs/remotes/origin/main	refs/remotes/origin/HEAD" >>expect.v2 &&
+	oid=$(git rev-parse HEAD) &&
+	echo "$oid	refs/remotes/origin/HEAD" >>expect.v2 &&
+	generate_references \
+		refs/remotes/origin/main \
+		refs/tags/mark \
+		refs/tags/mark1.1 \
+		refs/tags/mark1.10 \
+		refs/tags/mark1.2 >>expect.v2 &&
+	# v0 does not show non-HEAD symrefs
+	grep -v "ref: refs/remotes" <expect.v2 >expect.v0 &&
+	git -c protocol.version=0 ls-remote --symref >actual.v0 &&
+	test_cmp expect.v0 actual.v0 &&
+	git -c protocol.version=2 ls-remote --symref >actual.v2 &&
+	test_cmp expect.v2 actual.v2
+'
+
+test_expect_success 'ls-remote with filtered symref (refname)' '
+	rev=$(git rev-parse HEAD) &&
+	cat >expect <<-EOF &&
+	ref: refs/heads/main	HEAD
+	$rev	HEAD
+	EOF
+	git ls-remote --symref . HEAD >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'ls-remote with filtered symref (--heads)' '
+	git symbolic-ref refs/heads/foo refs/tags/mark &&
+	cat >expect.v2 <<-EOF &&
+	ref: refs/tags/mark	refs/heads/foo
+	$rev	refs/heads/foo
+	$rev	refs/heads/main
+	EOF
+	grep -v "^ref: refs/tags/" <expect.v2 >expect.v0 &&
+	git -c protocol.version=0 ls-remote --symref --heads . >actual.v0 &&
+	test_cmp expect.v0 actual.v0 &&
+	git -c protocol.version=2 ls-remote --symref --heads . >actual.v2 &&
+	test_cmp expect.v2 actual.v2
+'
+
+test_expect_success 'indicate no refs in v0 standards-compliant empty remote' '
+	# Git does not produce an output like this, but it does match the
+	# standard and is produced by other implementations like JGit. So
+	# hard-code the case we care about.
+	#
+	# The actual capabilities do not matter; there are none that would
+	# change how ls-remote behaves.
+	oid=0000000000000000000000000000000000000000 &&
+	test-tool pkt-line pack >input.q <<-EOF &&
+	$oid capabilities^{}Qcaps-go-here
+	0000
+	EOF
+	q_to_nul <input.q >input &&
+
+	# --exit-code asks the command to exit with 2 when no
+	# matching refs are found.
+	test_expect_code 2 git ls-remote --exit-code --upload-pack=./cat-input .
+'
+
+test_expect_success 'ls-remote works outside repository' '
+	# It is important for this repo to be inside the nongit
+	# area, as we want a repo name that does not include
+	# slashes (because those inhibit some of our configuration
+	# lookups).
+	nongit git init --bare dst.git &&
+	nongit git ls-remote dst.git
+'
+
+test_expect_success 'ls-remote --sort fails gracefully outside repository' '
+	# Use a sort key that requires access to the referenced objects.
+	nongit test_must_fail git ls-remote --sort=authordate "$TRASH_DIRECTORY" 2>err &&
+	test_grep "^fatal: not a git repository, but the field '\''authordate'\'' requires access to object data" err
+'
+
+test_expect_success 'ls-remote patterns work with all protocol versions' '
+	git for-each-ref --format="%(objectname)	%(refname)" \
+		refs/heads/main refs/remotes/origin/main >expect &&
+	git -c protocol.version=0 ls-remote . main >actual.v0 &&
+	test_cmp expect actual.v0 &&
+	git -c protocol.version=2 ls-remote . main >actual.v2 &&
+	test_cmp expect actual.v2
+'
+
+test_expect_success 'ls-remote prefixes work with all protocol versions' '
+	git for-each-ref --format="%(objectname)	%(refname)" \
+		refs/heads/ refs/tags/ >expect &&
+	git -c protocol.version=0 ls-remote --heads --tags . >actual.v0 &&
+	test_cmp expect actual.v0 &&
+	git -c protocol.version=2 ls-remote --heads --tags . >actual.v2 &&
+	test_cmp expect actual.v2
+'
+
+test_expect_success 'v0 clients can handle multiple symrefs' '
+	# Modern versions of Git will not return multiple symref capabilities
+	# for v0, so we have to hard-code the response. Note that we will
+	# always use both v0 and object-format=sha1 here, as the hard-coded
+	# response reflects a server that only supports those.
+	oid=1234567890123456789012345678901234567890 &&
+	symrefs="symref=refs/remotes/origin/HEAD:refs/remotes/origin/main" &&
+	symrefs="$symrefs symref=HEAD:refs/heads/main" &&
+
+	# Likewise we want to make sure our parser is not fooled by the string
+	# "symref" appearing as part of an earlier cap. But there is no way to
+	# do that via upload-pack, as arbitrary strings can appear only in a
+	# "symref" value itself (where we skip past the values as a whole)
+	# and "agent" (which always appears after "symref", so putting our
+	# parser in a confused state is less interesting).
+	caps="some other caps including a-fake-symref-cap" &&
+
+	test-tool pkt-line pack >input.q <<-EOF &&
+	$oid HEADQ$caps $symrefs
+	$oid refs/heads/main
+	$oid refs/remotes/origin/HEAD
+	$oid refs/remotes/origin/main
+	0000
+	EOF
+	q_to_nul <input.q >input &&
+
+	cat >expect <<-EOF &&
+	ref: refs/heads/main	HEAD
+	$oid	HEAD
+	$oid	refs/heads/main
+	ref: refs/remotes/origin/main	refs/remotes/origin/HEAD
+	$oid	refs/remotes/origin/HEAD
+	$oid	refs/remotes/origin/main
+	EOF
+
+	git ls-remote --symref --upload-pack=./cat-input . >actual &&
+	test_cmp expect actual
+'
+
+test_done