t/t5702-protocol-v2.sh

#!/bin/sh

test_description='test git wire-protocol version 2'

TEST_NO_CREATE_REPO=1

. ./test-lib.sh

# Test protocol v2 with 'git://' transport
#
. "$TEST_DIRECTORY"/lib-git-daemon.sh
start_git_daemon --export-all --enable=receive-pack
daemon_parent=$GIT_DAEMON_DOCUMENT_ROOT_PATH/parent

test_expect_success 'create repo to be served by git-daemon' '
	git init "$daemon_parent" &&
	test_commit -C "$daemon_parent" one
'

test_expect_success 'list refs with git:// using protocol v2' '
	test_when_finished "rm -f log" &&

	GIT_TRACE_PACKET="$(pwd)/log" git -c protocol.version=2 \
		ls-remote --symref "$GIT_DAEMON_URL/parent" >actual &&

	# Client requested to use protocol v2
	grep "git> .*\\\0\\\0version=2\\\0$" log &&
	# Server responded using protocol v2
	grep "git< version 2" log &&

	git ls-remote --symref "$GIT_DAEMON_URL/parent" >expect &&
	test_cmp actual expect
'

test_expect_success 'ref advertisment is filtered with ls-remote using protocol v2' '
	test_when_finished "rm -f log" &&

	GIT_TRACE_PACKET="$(pwd)/log" git -c protocol.version=2 \
		ls-remote "$GIT_DAEMON_URL/parent" master >actual &&

	cat >expect <<-EOF &&
	$(git -C "$daemon_parent" rev-parse refs/heads/master)$(printf "\t")refs/heads/master
	EOF

	test_cmp actual expect
'

test_expect_success 'clone with git:// using protocol v2' '
	test_when_finished "rm -f log" &&

	GIT_TRACE_PACKET="$(pwd)/log" git -c protocol.version=2 \
		clone "$GIT_DAEMON_URL/parent" daemon_child &&

	git -C daemon_child log -1 --format=%s >actual &&
	git -C "$daemon_parent" log -1 --format=%s >expect &&
	test_cmp expect actual &&

	# Client requested to use protocol v2
	grep "clone> .*\\\0\\\0version=2\\\0$" log &&
	# Server responded using protocol v2
	grep "clone< version 2" log
'

test_expect_success 'fetch with git:// using protocol v2' '
	test_when_finished "rm -f log" &&

	test_commit -C "$daemon_parent" two &&

	GIT_TRACE_PACKET="$(pwd)/log" git -C daemon_child -c protocol.version=2 \
		fetch &&

	git -C daemon_child log -1 --format=%s origin/master >actual &&
	git -C "$daemon_parent" log -1 --format=%s >expect &&
	test_cmp expect actual &&

	# Client requested to use protocol v2
	grep "fetch> .*\\\0\\\0version=2\\\0$" log &&
	# Server responded using protocol v2
	grep "fetch< version 2" log
'

test_expect_success 'pull with git:// using protocol v2' '
	test_when_finished "rm -f log" &&

	GIT_TRACE_PACKET="$(pwd)/log" git -C daemon_child -c protocol.version=2 \
		pull &&

	git -C daemon_child log -1 --format=%s >actual &&
	git -C "$daemon_parent" log -1 --format=%s >expect &&
	test_cmp expect actual &&

	# Client requested to use protocol v2
	grep "fetch> .*\\\0\\\0version=2\\\0$" log &&
	# Server responded using protocol v2
	grep "fetch< version 2" log
'

test_expect_success 'push with git:// and a config of v2 does not request v2' '
	test_when_finished "rm -f log" &&

	# Till v2 for push is designed, make sure that if a client has
	# protocol.version configured to use v2, that the client instead falls
	# back and uses v0.

	test_commit -C daemon_child three &&

	# Push to another branch, as the target repository has the
	# master branch checked out and we cannot push into it.
	GIT_TRACE_PACKET="$(pwd)/log" git -C daemon_child -c protocol.version=2 \
		push origin HEAD:client_branch &&

	git -C daemon_child log -1 --format=%s >actual &&
	git -C "$daemon_parent" log -1 --format=%s client_branch >expect &&
	test_cmp expect actual &&

	# Client requested to use protocol v2
	! grep "push> .*\\\0\\\0version=2\\\0$" log &&
	# Server responded using protocol v2
	! grep "push< version 2" log
'

stop_git_daemon

# Test protocol v2 with 'file://' transport
#
test_expect_success 'create repo to be served by file:// transport' '
	git init file_parent &&
	test_commit -C file_parent one
'

test_expect_success 'list refs with file:// using protocol v2' '
	test_when_finished "rm -f log" &&

	GIT_TRACE_PACKET="$(pwd)/log" git -c protocol.version=2 \
		ls-remote --symref "file://$(pwd)/file_parent" >actual &&

	# Server responded using protocol v2
	grep "git< version 2" log &&

	git ls-remote --symref "file://$(pwd)/file_parent" >expect &&
	test_cmp actual expect
'

test_expect_success 'ref advertisment is filtered with ls-remote using protocol v2' '
	test_when_finished "rm -f log" &&

	GIT_TRACE_PACKET="$(pwd)/log" git -c protocol.version=2 \
		ls-remote "file://$(pwd)/file_parent" master >actual &&

	cat >expect <<-EOF &&
	$(git -C file_parent rev-parse refs/heads/master)$(printf "\t")refs/heads/master
	EOF

	test_cmp actual expect
'

test_expect_success 'clone with file:// using protocol v2' '
	test_when_finished "rm -f log" &&

	GIT_TRACE_PACKET="$(pwd)/log" git -c protocol.version=2 \
		clone "file://$(pwd)/file_parent" file_child &&

	git -C file_child log -1 --format=%s >actual &&
	git -C file_parent log -1 --format=%s >expect &&
	test_cmp expect actual &&

	# Server responded using protocol v2
	grep "clone< version 2" log
'

test_expect_success 'fetch with file:// using protocol v2' '
	test_when_finished "rm -f log" &&

	test_commit -C file_parent two &&

	GIT_TRACE_PACKET="$(pwd)/log" git -C file_child -c protocol.version=2 \
		fetch origin &&

	git -C file_child log -1 --format=%s origin/master >actual &&
	git -C file_parent log -1 --format=%s >expect &&
	test_cmp expect actual &&

	# Server responded using protocol v2
	grep "fetch< version 2" log
'

test_expect_success 'ref advertisment is filtered during fetch using protocol v2' '
	test_when_finished "rm -f log" &&

	test_commit -C file_parent three &&

	GIT_TRACE_PACKET="$(pwd)/log" git -C file_child -c protocol.version=2 \
		fetch origin master &&

	git -C file_child log -1 --format=%s origin/master >actual &&
	git -C file_parent log -1 --format=%s >expect &&
	test_cmp expect actual &&

	! grep "refs/tags/one" log &&
	! grep "refs/tags/two" log &&
	! grep "refs/tags/three" log
'

test_expect_success 'default refspec is used to filter ref when fetchcing' '
	test_when_finished "rm -f log" &&

	GIT_TRACE_PACKET="$(pwd)/log" git -C file_child -c protocol.version=2 \
		fetch origin &&

	git -C file_child log -1 --format=%s three >actual &&
	git -C file_parent log -1 --format=%s three >expect &&
	test_cmp expect actual &&

	grep "ref-prefix refs/heads/" log &&
	grep "ref-prefix refs/tags/" log
'

# Test protocol v2 with 'http://' transport
#
. "$TEST_DIRECTORY"/lib-httpd.sh
start_httpd

test_expect_success 'create repo to be served by http:// transport' '
	git init "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" &&
	git -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" config http.receivepack true &&
	test_commit -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" one
'

test_expect_success 'clone with http:// using protocol v2' '
	test_when_finished "rm -f log" &&

	GIT_TRACE_PACKET="$(pwd)/log" GIT_TRACE_CURL="$(pwd)/log" git -c protocol.version=2 \
		clone "$HTTPD_URL/smart/http_parent" http_child &&

	git -C http_child log -1 --format=%s >actual &&
	git -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" log -1 --format=%s >expect &&
	test_cmp expect actual &&

	# Client requested to use protocol v2
	grep "Git-Protocol: version=2" log &&
	# Server responded using protocol v2
	grep "git< version 2" log
'

test_expect_success 'fetch with http:// using protocol v2' '
	test_when_finished "rm -f log" &&

	test_commit -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" two &&

	GIT_TRACE_PACKET="$(pwd)/log" git -C http_child -c protocol.version=2 \
		fetch &&

	git -C http_child log -1 --format=%s origin/master >actual &&
	git -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" log -1 --format=%s >expect &&
	test_cmp expect actual &&

	# Server responded using protocol v2
	grep "git< version 2" log
'

test_expect_success 'push with http:// and a config of v2 does not request v2' '
	test_when_finished "rm -f log" &&
	# Till v2 for push is designed, make sure that if a client has
	# protocol.version configured to use v2, that the client instead falls
	# back and uses v0.

	test_commit -C http_child three &&

	# Push to another branch, as the target repository has the
	# master branch checked out and we cannot push into it.
	GIT_TRACE_PACKET="$(pwd)/log" git -C http_child -c protocol.version=2 \
		push origin HEAD:client_branch &&

	git -C http_child log -1 --format=%s >actual &&
	git -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" log -1 --format=%s client_branch >expect &&
	test_cmp expect actual &&

	# Client didnt request to use protocol v2
	! grep "Git-Protocol: version=2" log &&
	# Server didnt respond using protocol v2
	! grep "git< version 2" log
'


stop_httpd

test_done