[thirdparty/git.git] / t / t5703-upload-pack-ref-in-want.sh

#!/bin/sh

test_description='upload-pack ref-in-want'

. ./test-lib.sh

get_actual_refs () {
	sed -n -e '/wanted-refs/,/0001/{
		/wanted-refs/d
		/0001/d
		p
		}' <out | test-tool pkt-line unpack >actual_refs
}

get_actual_commits () {
	sed -n -e '/packfile/,/0000/{
		/packfile/d
		p
		}' <out | test-tool pkt-line unpack-sideband >o.pack &&
	git index-pack o.pack &&
	git verify-pack -v o.idx >objs &&
	grep commit objs | cut -c-40 | sort >actual_commits
}

check_output () {
	get_actual_refs &&
	test_cmp expected_refs actual_refs &&
	get_actual_commits &&
	sort expected_commits >sorted_commits &&
	test_cmp sorted_commits actual_commits
}

# c(o/foo) d(o/bar)
#        \ /
#         b   e(baz)  f(master)
#          \__  |  __/
#             \ | /
#               a
test_expect_success 'setup repository' '
	test_commit a &&
	git checkout -b o/foo &&
	test_commit b &&
	test_commit c &&
	git checkout -b o/bar b &&
	test_commit d &&
	git checkout -b baz a &&
	test_commit e &&
	git checkout master &&
	test_commit f
'

test_expect_success 'config controls ref-in-want advertisement' '
	test-tool serve-v2 --advertise-capabilities >out &&
	! grep -a ref-in-want out &&

	git config uploadpack.allowRefInWant false &&
	test-tool serve-v2 --advertise-capabilities >out &&
	! grep -a ref-in-want out &&

	git config uploadpack.allowRefInWant true &&
	test-tool serve-v2 --advertise-capabilities >out &&
	grep -a ref-in-want out
'

test_expect_success 'invalid want-ref line' '
	test-tool pkt-line pack >in <<-EOF &&
	command=fetch
	0001
	no-progress
	want-ref refs/heads/non-existent
	done
	0000
	EOF

	test_must_fail test-tool serve-v2 --stateless-rpc 2>out <in &&
	grep "unknown ref" out
'

test_expect_success 'basic want-ref' '
	oid=$(git rev-parse f) &&
	cat >expected_refs <<-EOF &&
	$oid refs/heads/master
	EOF
	git rev-parse f >expected_commits &&

	oid=$(git rev-parse a) &&
	test-tool pkt-line pack >in <<-EOF &&
	command=fetch
	0001
	no-progress
	want-ref refs/heads/master
	have $oid
	done
	0000
	EOF

	test-tool serve-v2 --stateless-rpc >out <in &&
	check_output
'

test_expect_success 'multiple want-ref lines' '
	oid_c=$(git rev-parse c) &&
	oid_d=$(git rev-parse d) &&
	cat >expected_refs <<-EOF &&
	$oid_c refs/heads/o/foo
	$oid_d refs/heads/o/bar
	EOF
	git rev-parse c d >expected_commits &&

	oid=$(git rev-parse b) &&
	test-tool pkt-line pack >in <<-EOF &&
	command=fetch
	0001
	no-progress
	want-ref refs/heads/o/foo
	want-ref refs/heads/o/bar
	have $oid
	done
	0000
	EOF

	test-tool serve-v2 --stateless-rpc >out <in &&
	check_output
'

test_expect_success 'mix want and want-ref' '
	oid=$(git rev-parse f) &&
	cat >expected_refs <<-EOF &&
	$oid refs/heads/master
	EOF
	git rev-parse e f >expected_commits &&

	test-tool pkt-line pack >in <<-EOF &&
	command=fetch
	0001
	no-progress
	want-ref refs/heads/master
	want $(git rev-parse e)
	have $(git rev-parse a)
	done
	0000
	EOF

	test-tool serve-v2 --stateless-rpc >out <in &&
	check_output
'

test_expect_success 'want-ref with ref we already have commit for' '
	oid=$(git rev-parse c) &&
	cat >expected_refs <<-EOF &&
	$oid refs/heads/o/foo
	EOF
	>expected_commits &&

	oid=$(git rev-parse c) &&
	test-tool pkt-line pack >in <<-EOF &&
	command=fetch
	0001
	no-progress
	want-ref refs/heads/o/foo
	have $oid
	done
	0000
	EOF

	test-tool serve-v2 --stateless-rpc >out <in &&
	check_output
'

REPO="$(pwd)/repo"
LOCAL_PRISTINE="$(pwd)/local_pristine"

# $REPO
# c(o/foo) d(o/bar)
#        \ /
#         b   e(baz)  f(master)
#          \__  |  __/
#             \ | /
#               a
#
# $LOCAL_PRISTINE
#		s32(side)
#		|
#		.
#		.
#		|
#		a(master)
test_expect_success 'setup repos for fetching with ref-in-want tests' '
	(
		git init "$REPO" &&
		cd "$REPO" &&
		test_commit a &&

		# Local repo with many commits (so that negotiation will take
		# more than 1 request/response pair)
		rm -rf "$LOCAL_PRISTINE" &&
		git clone "file://$REPO" "$LOCAL_PRISTINE" &&
		cd "$LOCAL_PRISTINE" &&
		git checkout -b side &&
		test_commit_bulk --id=s 33 &&

		# Add novel commits to upstream
		git checkout master &&
		cd "$REPO" &&
		git checkout -b o/foo &&
		test_commit b &&
		test_commit c &&
		git checkout -b o/bar b &&
		test_commit d &&
		git checkout -b baz a &&
		test_commit e &&
		git checkout master &&
		test_commit f
	) &&
	git -C "$REPO" config uploadpack.allowRefInWant true &&
	git -C "$LOCAL_PRISTINE" config protocol.version 2
'

test_expect_success 'fetching with exact OID' '
	test_when_finished "rm -f log" &&

	rm -rf local &&
	cp -r "$LOCAL_PRISTINE" local &&
	oid=$(git -C "$REPO" rev-parse d) &&
	GIT_TRACE_PACKET="$(pwd)/log" git -C local fetch origin \
		"$oid":refs/heads/actual &&

	git -C "$REPO" rev-parse "d" >expected &&
	git -C local rev-parse refs/heads/actual >actual &&
	test_cmp expected actual &&
	grep "want $oid" log
'

test_expect_success 'fetching multiple refs' '
	test_when_finished "rm -f log" &&

	rm -rf local &&
	cp -r "$LOCAL_PRISTINE" local &&
	GIT_TRACE_PACKET="$(pwd)/log" git -C local fetch origin master baz &&

	git -C "$REPO" rev-parse "master" "baz" >expected &&
	git -C local rev-parse refs/remotes/origin/master refs/remotes/origin/baz >actual &&
	test_cmp expected actual &&
	grep "want-ref refs/heads/master" log &&
	grep "want-ref refs/heads/baz" log
'

test_expect_success 'fetching ref and exact OID' '
	test_when_finished "rm -f log" &&

	rm -rf local &&
	cp -r "$LOCAL_PRISTINE" local &&
	oid=$(git -C "$REPO" rev-parse b) &&
	GIT_TRACE_PACKET="$(pwd)/log" git -C local fetch origin \
		master "$oid":refs/heads/actual &&

	git -C "$REPO" rev-parse "master" "b" >expected &&
	git -C local rev-parse refs/remotes/origin/master refs/heads/actual >actual &&
	test_cmp expected actual &&
	grep "want $oid" log &&
	grep "want-ref refs/heads/master" log
'

test_expect_success 'fetching with wildcard that does not match any refs' '
	test_when_finished "rm -f log" &&

	rm -rf local &&
	cp -r "$LOCAL_PRISTINE" local &&
	git -C local fetch origin refs/heads/none*:refs/heads/* >out &&
	test_must_be_empty out
'

test_expect_success 'fetching with wildcard that matches multiple refs' '
	test_when_finished "rm -f log" &&

	rm -rf local &&
	cp -r "$LOCAL_PRISTINE" local &&
	GIT_TRACE_PACKET="$(pwd)/log" git -C local fetch origin refs/heads/o*:refs/heads/o* &&

	git -C "$REPO" rev-parse "o/foo" "o/bar" >expected &&
	git -C local rev-parse "o/foo" "o/bar" >actual &&
	test_cmp expected actual &&
	grep "want-ref refs/heads/o/foo" log &&
	grep "want-ref refs/heads/o/bar" log
'

. "$TEST_DIRECTORY"/lib-httpd.sh
start_httpd

REPO="$HTTPD_DOCUMENT_ROOT_PATH/repo"
LOCAL_PRISTINE="$(pwd)/local_pristine"

test_expect_success 'setup repos for change-while-negotiating test' '
	(
		git init "$REPO" &&
		cd "$REPO" &&
		>.git/git-daemon-export-ok &&
		test_commit m1 &&
		git tag -d m1 &&

		# Local repo with many commits (so that negotiation will take
		# more than 1 request/response pair)
		rm -rf "$LOCAL_PRISTINE" &&
		git clone "http://127.0.0.1:$LIB_HTTPD_PORT/smart/repo" "$LOCAL_PRISTINE" &&
		cd "$LOCAL_PRISTINE" &&
		git checkout -b side &&
		test_commit_bulk --id=s 33 &&

		# Add novel commits to upstream
		git checkout master &&
		cd "$REPO" &&
		test_commit m2 &&
		test_commit m3 &&
		git tag -d m2 m3
	) &&
	git -C "$LOCAL_PRISTINE" remote set-url origin "http://127.0.0.1:$LIB_HTTPD_PORT/one_time_sed/repo" &&
	git -C "$LOCAL_PRISTINE" config protocol.version 2
'

inconsistency () {
	# Simulate that the server initially reports $2 as the ref
	# corresponding to $1, and after that, $1 as the ref corresponding to
	# $1. This corresponds to the real-life situation where the server's
	# repository appears to change during negotiation, for example, when
	# different servers in a load-balancing arrangement serve (stateless)
	# RPCs during a single negotiation.
	oid1=$(git -C "$REPO" rev-parse $1) &&
	oid2=$(git -C "$REPO" rev-parse $2) &&
	echo "s/$oid1/$oid2/" >"$HTTPD_ROOT_PATH/one-time-sed"
}

test_expect_success 'server is initially ahead - no ref in want' '
	git -C "$REPO" config uploadpack.allowRefInWant false &&
	rm -rf local &&
	cp -r "$LOCAL_PRISTINE" local &&
	inconsistency master 1234567890123456789012345678901234567890 &&
	test_must_fail git -C local fetch 2>err &&
	test_i18ngrep "fatal: remote error: upload-pack: not our ref" err
'

test_expect_success 'server is initially ahead - ref in want' '
	git -C "$REPO" config uploadpack.allowRefInWant true &&
	rm -rf local &&
	cp -r "$LOCAL_PRISTINE" local &&
	inconsistency master 1234567890123456789012345678901234567890 &&
	git -C local fetch &&

	git -C "$REPO" rev-parse --verify master >expected &&
	git -C local rev-parse --verify refs/remotes/origin/master >actual &&
	test_cmp expected actual
'

test_expect_success 'server is initially behind - no ref in want' '
	git -C "$REPO" config uploadpack.allowRefInWant false &&
	rm -rf local &&
	cp -r "$LOCAL_PRISTINE" local &&
	inconsistency master "master^" &&
	git -C local fetch &&

	git -C "$REPO" rev-parse --verify "master^" >expected &&
	git -C local rev-parse --verify refs/remotes/origin/master >actual &&
	test_cmp expected actual
'

test_expect_success 'server is initially behind - ref in want' '
	git -C "$REPO" config uploadpack.allowRefInWant true &&
	rm -rf local &&
	cp -r "$LOCAL_PRISTINE" local &&
	inconsistency master "master^" &&
	git -C local fetch &&

	git -C "$REPO" rev-parse --verify "master" >expected &&
	git -C local rev-parse --verify refs/remotes/origin/master >actual &&
	test_cmp expected actual
'

test_expect_success 'server loses a ref - ref in want' '
	git -C "$REPO" config uploadpack.allowRefInWant true &&
	rm -rf local &&
	cp -r "$LOCAL_PRISTINE" local &&
	echo "s/master/raster/" >"$HTTPD_ROOT_PATH/one-time-sed" &&
	test_must_fail git -C local fetch 2>err &&

	test_i18ngrep "fatal: remote error: unknown ref refs/heads/raster" err
'

# DO NOT add non-httpd-specific tests here, because the last part of this
# test script is only executed when httpd is available and enabled.

test_done
Commit	Line	Data
516e2b76 BW	1	#!/bin/sh
	2
	3	test_description='upload-pack ref-in-want'
	4
	5	. ./test-lib.sh
	6
	7	get_actual_refs () {
	8	sed -n -e '/wanted-refs/,/0001/{
	9	/wanted-refs/d
	10	/0001/d
	11	p
8ea40cc5	12	}' <out \| test-tool pkt-line unpack >actual_refs
516e2b76 BW	13	}
	14
	15	get_actual_commits () {
	16	sed -n -e '/packfile/,/0000/{
	17	/packfile/d
	18	p
8ea40cc5	19	}' <out \| test-tool pkt-line unpack-sideband >o.pack &&
516e2b76	20	git index-pack o.pack &&
763b47ba DL	21	git verify-pack -v o.idx >objs &&
763b47ba DL	22	grep commit objs \| cut -c-40 \| sort >actual_commits
516e2b76 BW	23	}
	24
	25	check_output () {
	26	get_actual_refs &&
	27	test_cmp expected_refs actual_refs &&
	28	get_actual_commits &&
763b47ba DL	29	sort expected_commits >sorted_commits &&
763b47ba DL	30	test_cmp sorted_commits actual_commits
516e2b76 BW	31	}
	32
	33	# c(o/foo) d(o/bar)
	34	# \ /
	35	# b e(baz) f(master)
	36	# \__ \| __/
	37	# \ \| /
	38	# a
	39	test_expect_success 'setup repository' '
	40	test_commit a &&
	41	git checkout -b o/foo &&
	42	test_commit b &&
	43	test_commit c &&
	44	git checkout -b o/bar b &&
	45	test_commit d &&
	46	git checkout -b baz a &&
	47	test_commit e &&
	48	git checkout master &&
	49	test_commit f
	50	'
	51
	52	test_expect_success 'config controls ref-in-want advertisement' '
b7ce24d0	53	test-tool serve-v2 --advertise-capabilities >out &&
516e2b76 BW	54	! grep -a ref-in-want out &&
	55
	56	git config uploadpack.allowRefInWant false &&
b7ce24d0	57	test-tool serve-v2 --advertise-capabilities >out &&
516e2b76 BW	58	! grep -a ref-in-want out &&
	59
	60	git config uploadpack.allowRefInWant true &&
b7ce24d0	61	test-tool serve-v2 --advertise-capabilities >out &&
516e2b76 BW	62	grep -a ref-in-want out
	63	'
	64
	65	test_expect_success 'invalid want-ref line' '
8ea40cc5	66	test-tool pkt-line pack >in <<-EOF &&
516e2b76 BW	67	command=fetch
	68	0001
	69	no-progress
	70	want-ref refs/heads/non-existent
	71	done
	72	0000
	73	EOF
	74
b7ce24d0	75	test_must_fail test-tool serve-v2 --stateless-rpc 2>out <in &&
516e2b76 BW	76	grep "unknown ref" out
	77	'
	78
	79	test_expect_success 'basic want-ref' '
763b47ba	80	oid=$(git rev-parse f) &&
516e2b76	81	cat >expected_refs <<-EOF &&
763b47ba	82	$oid refs/heads/master
516e2b76	83	EOF
763b47ba	84	git rev-parse f >expected_commits &&
516e2b76	85
763b47ba	86	oid=$(git rev-parse a) &&
8ea40cc5	87	test-tool pkt-line pack >in <<-EOF &&
516e2b76 BW	88	command=fetch
	89	0001
	90	no-progress
	91	want-ref refs/heads/master
763b47ba	92	have $oid
516e2b76 BW	93	done
	94	0000
	95	EOF
	96
b7ce24d0	97	test-tool serve-v2 --stateless-rpc >out <in &&
516e2b76 BW	98	check_output
	99	'
	100
	101	test_expect_success 'multiple want-ref lines' '
763b47ba DL	102	oid_c=$(git rev-parse c) &&
763b47ba DL	103	oid_d=$(git rev-parse d) &&
516e2b76	104	cat >expected_refs <<-EOF &&
763b47ba DL	105	$oid_c refs/heads/o/foo
763b47ba DL	106	$oid_d refs/heads/o/bar
516e2b76	107	EOF
763b47ba	108	git rev-parse c d >expected_commits &&
516e2b76	109
763b47ba	110	oid=$(git rev-parse b) &&
8ea40cc5	111	test-tool pkt-line pack >in <<-EOF &&
516e2b76 BW	112	command=fetch
	113	0001
	114	no-progress
	115	want-ref refs/heads/o/foo
	116	want-ref refs/heads/o/bar
763b47ba	117	have $oid
516e2b76 BW	118	done
	119	0000
	120	EOF
	121
b7ce24d0	122	test-tool serve-v2 --stateless-rpc >out <in &&
516e2b76 BW	123	check_output
	124	'
	125
	126	test_expect_success 'mix want and want-ref' '
763b47ba	127	oid=$(git rev-parse f) &&
516e2b76	128	cat >expected_refs <<-EOF &&
763b47ba	129	$oid refs/heads/master
516e2b76	130	EOF
763b47ba	131	git rev-parse e f >expected_commits &&
516e2b76	132
8ea40cc5	133	test-tool pkt-line pack >in <<-EOF &&
516e2b76 BW	134	command=fetch
	135	0001
	136	no-progress
	137	want-ref refs/heads/master
	138	want $(git rev-parse e)
	139	have $(git rev-parse a)
	140	done
	141	0000
	142	EOF
	143
b7ce24d0	144	test-tool serve-v2 --stateless-rpc >out <in &&
516e2b76 BW	145	check_output
	146	'
	147
	148	test_expect_success 'want-ref with ref we already have commit for' '
763b47ba	149	oid=$(git rev-parse c) &&
516e2b76	150	cat >expected_refs <<-EOF &&
763b47ba	151	$oid refs/heads/o/foo
516e2b76 BW	152	EOF
	153	>expected_commits &&
	154
763b47ba	155	oid=$(git rev-parse c) &&
8ea40cc5	156	test-tool pkt-line pack >in <<-EOF &&
516e2b76 BW	157	command=fetch
	158	0001
	159	no-progress
	160	want-ref refs/heads/o/foo
763b47ba	161	have $oid
516e2b76 BW	162	done
	163	0000
	164	EOF
	165
b7ce24d0	166	test-tool serve-v2 --stateless-rpc >out <in &&
516e2b76 BW	167	check_output
	168	'
	169
73302051 BW	170	REPO="$(pwd)/repo"
	171	LOCAL_PRISTINE="$(pwd)/local_pristine"
	172
	173	# $REPO
	174	# c(o/foo) d(o/bar)
	175	# \ /
	176	# b e(baz) f(master)
	177	# \__ \| __/
	178	# \ \| /
	179	# a
	180	#
	181	# $LOCAL_PRISTINE
	182	# s32(side)
	183	# \|
	184	# .
	185	# .
	186	# \|
	187	# a(master)
	188	test_expect_success 'setup repos for fetching with ref-in-want tests' '
	189	(
	190	git init "$REPO" &&
	191	cd "$REPO" &&
	192	test_commit a &&
	193
	194	# Local repo with many commits (so that negotiation will take
	195	# more than 1 request/response pair)
	196	rm -rf "$LOCAL_PRISTINE" &&
	197	git clone "file://$REPO" "$LOCAL_PRISTINE" &&
	198	cd "$LOCAL_PRISTINE" &&
	199	git checkout -b side &&
ac093d55	200	test_commit_bulk --id=s 33 &&
73302051 BW	201
	202	# Add novel commits to upstream
	203	git checkout master &&
	204	cd "$REPO" &&
	205	git checkout -b o/foo &&
	206	test_commit b &&
	207	test_commit c &&
	208	git checkout -b o/bar b &&
	209	test_commit d &&
	210	git checkout -b baz a &&
	211	test_commit e &&
	212	git checkout master &&
	213	test_commit f
	214	) &&
	215	git -C "$REPO" config uploadpack.allowRefInWant true &&
	216	git -C "$LOCAL_PRISTINE" config protocol.version 2
	217	'
	218
	219	test_expect_success 'fetching with exact OID' '
	220	test_when_finished "rm -f log" &&
	221
	222	rm -rf local &&
	223	cp -r "$LOCAL_PRISTINE" local &&
763b47ba	224	oid=$(git -C "$REPO" rev-parse d) &&
73302051	225	GIT_TRACE_PACKET="$(pwd)/log" git -C local fetch origin \
763b47ba	226	"$oid":refs/heads/actual &&
73302051 BW	227
	228	git -C "$REPO" rev-parse "d" >expected &&
	229	git -C local rev-parse refs/heads/actual >actual &&
	230	test_cmp expected actual &&
763b47ba	231	grep "want $oid" log
73302051 BW	232	'
	233
	234	test_expect_success 'fetching multiple refs' '
	235	test_when_finished "rm -f log" &&
	236
	237	rm -rf local &&
	238	cp -r "$LOCAL_PRISTINE" local &&
	239	GIT_TRACE_PACKET="$(pwd)/log" git -C local fetch origin master baz &&
	240
	241	git -C "$REPO" rev-parse "master" "baz" >expected &&
	242	git -C local rev-parse refs/remotes/origin/master refs/remotes/origin/baz >actual &&
	243	test_cmp expected actual &&
	244	grep "want-ref refs/heads/master" log &&
	245	grep "want-ref refs/heads/baz" log
	246	'
	247
	248	test_expect_success 'fetching ref and exact OID' '
	249	test_when_finished "rm -f log" &&
	250
	251	rm -rf local &&
	252	cp -r "$LOCAL_PRISTINE" local &&
763b47ba	253	oid=$(git -C "$REPO" rev-parse b) &&
73302051	254	GIT_TRACE_PACKET="$(pwd)/log" git -C local fetch origin \
763b47ba	255	master "$oid":refs/heads/actual &&
73302051 BW	256
	257	git -C "$REPO" rev-parse "master" "b" >expected &&
	258	git -C local rev-parse refs/remotes/origin/master refs/heads/actual >actual &&
	259	test_cmp expected actual &&
763b47ba	260	grep "want $oid" log &&
73302051 BW	261	grep "want-ref refs/heads/master" log
	262	'
	263
	264	test_expect_success 'fetching with wildcard that does not match any refs' '
	265	test_when_finished "rm -f log" &&
	266
	267	rm -rf local &&
	268	cp -r "$LOCAL_PRISTINE" local &&
	269	git -C local fetch origin refs/heads/none:refs/heads/ >out &&
	270	test_must_be_empty out
	271	'
	272
	273	test_expect_success 'fetching with wildcard that matches multiple refs' '
	274	test_when_finished "rm -f log" &&
	275
	276	rm -rf local &&
	277	cp -r "$LOCAL_PRISTINE" local &&
	278	GIT_TRACE_PACKET="$(pwd)/log" git -C local fetch origin refs/heads/o:refs/heads/o &&
	279
	280	git -C "$REPO" rev-parse "o/foo" "o/bar" >expected &&
	281	git -C local rev-parse "o/foo" "o/bar" >actual &&
	282	test_cmp expected actual &&
	283	grep "want-ref refs/heads/o/foo" log &&
	284	grep "want-ref refs/heads/o/bar" log
	285	'
	286
7f005b0f SG	287	. "$TEST_DIRECTORY"/lib-httpd.sh
	288	start_httpd
	289
	290	REPO="$HTTPD_DOCUMENT_ROOT_PATH/repo"
	291	LOCAL_PRISTINE="$(pwd)/local_pristine"
	292
	293	test_expect_success 'setup repos for change-while-negotiating test' '
	294	(
	295	git init "$REPO" &&
	296	cd "$REPO" &&
	297	>.git/git-daemon-export-ok &&
	298	test_commit m1 &&
	299	git tag -d m1 &&
	300
	301	# Local repo with many commits (so that negotiation will take
	302	# more than 1 request/response pair)
	303	rm -rf "$LOCAL_PRISTINE" &&
	304	git clone "http://127.0.0.1:$LIB_HTTPD_PORT/smart/repo" "$LOCAL_PRISTINE" &&
	305	cd "$LOCAL_PRISTINE" &&
	306	git checkout -b side &&
	307	test_commit_bulk --id=s 33 &&
	308
	309	# Add novel commits to upstream
	310	git checkout master &&
	311	cd "$REPO" &&
	312	test_commit m2 &&
	313	test_commit m3 &&
	314	git tag -d m2 m3
	315	) &&
	316	git -C "$LOCAL_PRISTINE" remote set-url origin "http://127.0.0.1:$LIB_HTTPD_PORT/one_time_sed/repo" &&
	317	git -C "$LOCAL_PRISTINE" config protocol.version 2
	318	'
	319
	320	inconsistency () {
	321	# Simulate that the server initially reports $2 as the ref
	322	# corresponding to $1, and after that, $1 as the ref corresponding to
	323	# $1. This corresponds to the real-life situation where the server's
	324	# repository appears to change during negotiation, for example, when
	325	# different servers in a load-balancing arrangement serve (stateless)
	326	# RPCs during a single negotiation.
eacaa1c1 DL	327	oid1=$(git -C "$REPO" rev-parse $1) &&
	328	oid2=$(git -C "$REPO" rev-parse $2) &&
	329	echo "s/$oid1/$oid2/" >"$HTTPD_ROOT_PATH/one-time-sed"
7f005b0f SG	330	}
	331
	332	test_expect_success 'server is initially ahead - no ref in want' '
	333	git -C "$REPO" config uploadpack.allowRefInWant false &&
	334	rm -rf local &&
	335	cp -r "$LOCAL_PRISTINE" local &&
	336	inconsistency master 1234567890123456789012345678901234567890 &&
	337	test_must_fail git -C local fetch 2>err &&
	338	test_i18ngrep "fatal: remote error: upload-pack: not our ref" err
	339	'
	340
	341	test_expect_success 'server is initially ahead - ref in want' '
	342	git -C "$REPO" config uploadpack.allowRefInWant true &&
	343	rm -rf local &&
	344	cp -r "$LOCAL_PRISTINE" local &&
	345	inconsistency master 1234567890123456789012345678901234567890 &&
	346	git -C local fetch &&
	347
	348	git -C "$REPO" rev-parse --verify master >expected &&
	349	git -C local rev-parse --verify refs/remotes/origin/master >actual &&
	350	test_cmp expected actual
	351	'
	352
	353	test_expect_success 'server is initially behind - no ref in want' '
	354	git -C "$REPO" config uploadpack.allowRefInWant false &&
	355	rm -rf local &&
	356	cp -r "$LOCAL_PRISTINE" local &&
	357	inconsistency master "master^" &&
	358	git -C local fetch &&
	359
	360	git -C "$REPO" rev-parse --verify "master^" >expected &&
	361	git -C local rev-parse --verify refs/remotes/origin/master >actual &&
	362	test_cmp expected actual
	363	'
	364
	365	test_expect_success 'server is initially behind - ref in want' '
	366	git -C "$REPO" config uploadpack.allowRefInWant true &&
	367	rm -rf local &&
	368	cp -r "$LOCAL_PRISTINE" local &&
	369	inconsistency master "master^" &&
	370	git -C local fetch &&
	371
	372	git -C "$REPO" rev-parse --verify "master" >expected &&
	373	git -C local rev-parse --verify refs/remotes/origin/master >actual &&
	374	test_cmp expected actual
	375	'
	376
	377	test_expect_success 'server loses a ref - ref in want' '
	378	git -C "$REPO" config uploadpack.allowRefInWant true &&
	379	rm -rf local &&
	380	cp -r "$LOCAL_PRISTINE" local &&
	381	echo "s/master/raster/" >"$HTTPD_ROOT_PATH/one-time-sed" &&
	382	test_must_fail git -C local fetch 2>err &&
	383
	384	test_i18ngrep "fatal: remote error: unknown ref refs/heads/raster" err
	385	'
	386
	387	# DO NOT add non-httpd-specific tests here, because the last part of this
	388	# test script is only executed when httpd is available and enabled.
	389
516e2b76	390	test_done