[thirdparty/git.git] / t / t3210-pack-refs.sh

#!/bin/sh
#
# Copyright (c) 2005 Amos Waterland
# Copyright (c) 2006 Christian Couder
#

test_description='git pack-refs should not change the branch semantic

This test runs git pack-refs and git show-ref and checks that the branch
semantic is still the same.
'
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME

TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh

test_expect_success 'enable reflogs' '
	git config core.logallrefupdates true
'

test_expect_success 'prepare a trivial repository' '
	echo Hello > A &&
	git update-index --add A &&
	git commit -m "Initial commit." &&
	HEAD=$(git rev-parse --verify HEAD)
'

SHA1=

test_expect_success 'see if git show-ref works as expected' '
	git branch a &&
	SHA1=$(cat .git/refs/heads/a) &&
	echo "$SHA1 refs/heads/a" >expect &&
	git show-ref a >result &&
	test_cmp expect result
'

test_expect_success 'see if a branch still exists when packed' '
	git branch b &&
	git pack-refs --all &&
	rm -f .git/refs/heads/b &&
	echo "$SHA1 refs/heads/b" >expect &&
	git show-ref b >result &&
	test_cmp expect result
'

test_expect_success 'git branch c/d should barf if branch c exists' '
	git branch c &&
	git pack-refs --all &&
	rm -f .git/refs/heads/c &&
	test_must_fail git branch c/d
'

test_expect_success 'see if a branch still exists after git pack-refs --prune' '
	git branch e &&
	git pack-refs --all --prune &&
	echo "$SHA1 refs/heads/e" >expect &&
	git show-ref e >result &&
	test_cmp expect result
'

test_expect_success 'see if git pack-refs --prune remove ref files' '
	git branch f &&
	git pack-refs --all --prune &&
	! test -f .git/refs/heads/f
'

test_expect_success 'see if git pack-refs --prune removes empty dirs' '
	git branch r/s/t &&
	git pack-refs --all --prune &&
	! test -e .git/refs/heads/r
'

test_expect_success 'git branch g should work when git branch g/h has been deleted' '
	git branch g/h &&
	git pack-refs --all --prune &&
	git branch -d g/h &&
	git branch g &&
	git pack-refs --all &&
	git branch -d g
'

test_expect_success 'git branch i/j/k should barf if branch i exists' '
	git branch i &&
	git pack-refs --all --prune &&
	test_must_fail git branch i/j/k
'

test_expect_success 'test git branch k after branch k/l/m and k/lm have been deleted' '
	git branch k/l &&
	git branch k/lm &&
	git branch -d k/l &&
	git branch k/l/m &&
	git branch -d k/l/m &&
	git branch -d k/lm &&
	git branch k
'

test_expect_success 'test git branch n after some branch deletion and pruning' '
	git branch n/o &&
	git branch n/op &&
	git branch -d n/o &&
	git branch n/o/p &&
	git branch -d n/op &&
	git pack-refs --all --prune &&
	git branch -d n/o/p &&
	git branch n
'

test_expect_success 'test excluded refs are not packed' '
	git branch dont_pack1 &&
	git branch dont_pack2 &&
	git branch pack_this &&
	git pack-refs --all --exclude "refs/heads/dont_pack*" &&
	test -f .git/refs/heads/dont_pack1 &&
	test -f .git/refs/heads/dont_pack2 &&
	! test -f .git/refs/heads/pack_this'

test_expect_success 'test --no-exclude refs clears excluded refs' '
	git branch dont_pack3 &&
	git branch dont_pack4 &&
	git pack-refs --all --exclude "refs/heads/dont_pack*" --no-exclude &&
	! test -f .git/refs/heads/dont_pack3 &&
	! test -f .git/refs/heads/dont_pack4'

test_expect_success 'test only included refs are packed' '
	git branch pack_this1 &&
	git branch pack_this2 &&
	git tag dont_pack5 &&
	git pack-refs --include "refs/heads/pack_this*" &&
	test -f .git/refs/tags/dont_pack5 &&
	! test -f .git/refs/heads/pack_this1 &&
	! test -f .git/refs/heads/pack_this2'

test_expect_success 'test --no-include refs clears included refs' '
	git branch pack1 &&
	git branch pack2 &&
	git pack-refs --include "refs/heads/pack*" --no-include &&
	test -f .git/refs/heads/pack1 &&
	test -f .git/refs/heads/pack2'

test_expect_success 'test --exclude takes precedence over --include' '
	git branch dont_pack5 &&
	git pack-refs --include "refs/heads/pack*" --exclude "refs/heads/pack*" &&
	test -f .git/refs/heads/dont_pack5'

test_expect_success 'see if up-to-date packed refs are preserved' '
	git branch q &&
	git pack-refs --all --prune &&
	git update-ref refs/heads/q refs/heads/q &&
	! test -f .git/refs/heads/q
'

test_expect_success 'pack, prune and repack' '
	git tag foo &&
	git pack-refs --all --prune &&
	git show-ref >all-of-them &&
	git pack-refs &&
	git show-ref >again &&
	test_cmp all-of-them again
'

test_expect_success 'explicit pack-refs with dangling packed reference' '
	git commit --allow-empty -m "soon to be garbage-collected" &&
	git pack-refs --all &&
	git reset --hard HEAD^ &&
	git reflog expire --expire=all --all &&
	git prune --expire=all &&
	git pack-refs --all 2>result &&
	test_must_be_empty result
'

test_expect_success 'delete ref with dangling packed version' '
	git checkout -b lamb &&
	git commit --allow-empty -m "future garbage" &&
	git pack-refs --all &&
	git reset --hard HEAD^ &&
	git checkout main &&
	git reflog expire --expire=all --all &&
	git prune --expire=all &&
	git branch -d lamb 2>result &&
	test_must_be_empty result
'

test_expect_success 'delete ref while another dangling packed ref' '
	git branch lamb &&
	git commit --allow-empty -m "future garbage" &&
	git pack-refs --all &&
	git reset --hard HEAD^ &&
	git reflog expire --expire=all --all &&
	git prune --expire=all &&
	git branch -d lamb 2>result &&
	test_must_be_empty result
'

test_expect_success 'pack ref directly below refs/' '
	git update-ref refs/top HEAD &&
	git pack-refs --all --prune &&
	grep refs/top .git/packed-refs &&
	test_path_is_missing .git/refs/top
'

test_expect_success 'do not pack ref in refs/bisect' '
	git update-ref refs/bisect/local HEAD &&
	git pack-refs --all --prune &&
	! grep refs/bisect/local .git/packed-refs >/dev/null &&
	test_path_is_file .git/refs/bisect/local
'

test_expect_success 'disable reflogs' '
	git config core.logallrefupdates false &&
	rm -rf .git/logs
'

test_expect_success 'create packed foo/bar/baz branch' '
	git branch foo/bar/baz &&
	git pack-refs --all --prune &&
	test_path_is_missing .git/refs/heads/foo/bar/baz &&
	test_must_fail git reflog exists refs/heads/foo/bar/baz
'

test_expect_success 'notice d/f conflict with existing directory' '
	test_must_fail git branch foo &&
	test_must_fail git branch foo/bar
'

test_expect_success 'existing directory reports concrete ref' '
	test_must_fail git branch foo 2>stderr &&
	test_i18ngrep refs/heads/foo/bar/baz stderr
'

test_expect_success 'notice d/f conflict with existing ref' '
	test_must_fail git branch foo/bar/baz/extra &&
	test_must_fail git branch foo/bar/baz/lots/of/extra/components
'

test_expect_success 'reject packed-refs with unterminated line' '
	cp .git/packed-refs .git/packed-refs.bak &&
	test_when_finished "mv .git/packed-refs.bak .git/packed-refs" &&
	printf "%s" "$HEAD refs/zzzzz" >>.git/packed-refs &&
	echo "fatal: unterminated line in .git/packed-refs: $HEAD refs/zzzzz" >expected_err &&
	test_must_fail git for-each-ref >out 2>err &&
	test_cmp expected_err err
'

test_expect_success 'reject packed-refs containing junk' '
	cp .git/packed-refs .git/packed-refs.bak &&
	test_when_finished "mv .git/packed-refs.bak .git/packed-refs" &&
	printf "%s\n" "bogus content" >>.git/packed-refs &&
	echo "fatal: unexpected line in .git/packed-refs: bogus content" >expected_err &&
	test_must_fail git for-each-ref >out 2>err &&
	test_cmp expected_err err
'

test_expect_success 'reject packed-refs with a short SHA-1' '
	cp .git/packed-refs .git/packed-refs.bak &&
	test_when_finished "mv .git/packed-refs.bak .git/packed-refs" &&
	printf "%.7s %s\n" $HEAD refs/zzzzz >>.git/packed-refs &&
	printf "fatal: unexpected line in .git/packed-refs: %.7s %s\n" $HEAD refs/zzzzz >expected_err &&
	test_must_fail git for-each-ref >out 2>err &&
	test_cmp expected_err err
'

test_expect_success 'timeout if packed-refs.lock exists' '
	LOCK=.git/packed-refs.lock &&
	>"$LOCK" &&
	test_when_finished "rm -f $LOCK" &&
	test_must_fail git pack-refs --all --prune
'

test_expect_success 'retry acquiring packed-refs.lock' '
	LOCK=.git/packed-refs.lock &&
	>"$LOCK" &&
	test_when_finished "wait && rm -f $LOCK" &&
	{
		( sleep 1 && rm -f $LOCK ) &
	} &&
	git -c core.packedrefstimeout=3000 pack-refs --all --prune
'

test_expect_success SYMLINKS 'pack symlinked packed-refs' '
	# First make sure that symlinking works when reading:
	git update-ref refs/heads/lossy refs/heads/main &&
	git for-each-ref >all-refs-before &&
	mv .git/packed-refs .git/my-deviant-packed-refs &&
	ln -s my-deviant-packed-refs .git/packed-refs &&
	git for-each-ref >all-refs-linked &&
	test_cmp all-refs-before all-refs-linked &&
	git pack-refs --all --prune &&
	git for-each-ref >all-refs-packed &&
	test_cmp all-refs-before all-refs-packed &&
	test -h .git/packed-refs &&
	test "$(test_readlink .git/packed-refs)" = "my-deviant-packed-refs"
'

test_done
Commit	Line	Data
919a3c98 CC	1	#!/bin/sh
	2	#
	3	# Copyright (c) 2005 Amos Waterland
	4	# Copyright (c) 2006 Christian Couder
	5	#
	6
	7	test_description='git pack-refs should not change the branch semantic
	8
	9	This test runs git pack-refs and git show-ref and checks that the branch
	10	semantic is still the same.
	11	'
d6c6b108	12	GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
334afbc7 JS	13	export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
334afbc7 JS	14
b2e5d75d	15	TEST_PASSES_SANITIZE_LEAK=true
919a3c98 CC	16	. ./test-lib.sh
919a3c98 CC	17
cbe73331 JK	18	test_expect_success 'enable reflogs' '
	19	git config core.logallrefupdates true
	20	'
3b463c3f	21
3c2f5d26 JC	22	test_expect_success 'prepare a trivial repository' '
	23	echo Hello > A &&
	24	git update-index --add A &&
	25	git commit -m "Initial commit." &&
	26	HEAD=$(git rev-parse --verify HEAD)
	27	'
919a3c98 CC	28
	29	SHA1=
	30
3c2f5d26 JC	31	test_expect_success 'see if git show-ref works as expected' '
	32	git branch a &&
	33	SHA1=$(cat .git/refs/heads/a) &&
	34	echo "$SHA1 refs/heads/a" >expect &&
	35	git show-ref a >result &&
	36	test_cmp expect result
	37	'
	38
	39	test_expect_success 'see if a branch still exists when packed' '
	40	git branch b &&
	41	git pack-refs --all &&
	42	rm -f .git/refs/heads/b &&
	43	echo "$SHA1 refs/heads/b" >expect &&
	44	git show-ref b >result &&
	45	test_cmp expect result
	46	'
919a3c98	47
41ac414e	48	test_expect_success 'git branch c/d should barf if branch c exists' '
3c2f5d26 JC	49	git branch c &&
	50	git pack-refs --all &&
	51	rm -f .git/refs/heads/c &&
	52	test_must_fail git branch c/d
41ac414e	53	'
919a3c98	54
3c2f5d26 JC	55	test_expect_success 'see if a branch still exists after git pack-refs --prune' '
	56	git branch e &&
	57	git pack-refs --all --prune &&
	58	echo "$SHA1 refs/heads/e" >expect &&
	59	git show-ref e >result &&
	60	test_cmp expect result
	61	'
919a3c98	62
41ac414e	63	test_expect_success 'see if git pack-refs --prune remove ref files' '
3c2f5d26 JC	64	git branch f &&
	65	git pack-refs --all --prune &&
	66	! test -f .git/refs/heads/f
41ac414e	67	'
919a3c98	68
be7c6d46	69	test_expect_success 'see if git pack-refs --prune removes empty dirs' '
3c2f5d26 JC	70	git branch r/s/t &&
	71	git pack-refs --all --prune &&
	72	! test -e .git/refs/heads/r
be7c6d46 GP	73	'
be7c6d46 GP	74
3c2f5d26 JC	75	test_expect_success 'git branch g should work when git branch g/h has been deleted' '
	76	git branch g/h &&
	77	git pack-refs --all --prune &&
	78	git branch -d g/h &&
	79	git branch g &&
	80	git pack-refs --all &&
	81	git branch -d g
	82	'
919a3c98	83
41ac414e	84	test_expect_success 'git branch i/j/k should barf if branch i exists' '
3c2f5d26 JC	85	git branch i &&
	86	git pack-refs --all --prune &&
	87	test_must_fail git branch i/j/k
	88	'
	89
	90	test_expect_success 'test git branch k after branch k/l/m and k/lm have been deleted' '
	91	git branch k/l &&
	92	git branch k/lm &&
	93	git branch -d k/l &&
	94	git branch k/l/m &&
	95	git branch -d k/l/m &&
	96	git branch -d k/lm &&
	97	git branch k
	98	'
	99
	100	test_expect_success 'test git branch n after some branch deletion and pruning' '
	101	git branch n/o &&
	102	git branch n/op &&
	103	git branch -d n/o &&
	104	git branch n/o/p &&
	105	git branch -d n/op &&
	106	git pack-refs --all --prune &&
	107	git branch -d n/o/p &&
	108	git branch n
	109	'
14c8a681	110
826ae79f JC	111	test_expect_success 'test excluded refs are not packed' '
	112	git branch dont_pack1 &&
	113	git branch dont_pack2 &&
	114	git branch pack_this &&
	115	git pack-refs --all --exclude "refs/heads/dont_pack*" &&
	116	test -f .git/refs/heads/dont_pack1 &&
	117	test -f .git/refs/heads/dont_pack2 &&
	118	! test -f .git/refs/heads/pack_this'
	119
	120	test_expect_success 'test --no-exclude refs clears excluded refs' '
	121	git branch dont_pack3 &&
	122	git branch dont_pack4 &&
	123	git pack-refs --all --exclude "refs/heads/dont_pack*" --no-exclude &&
	124	! test -f .git/refs/heads/dont_pack3 &&
	125	! test -f .git/refs/heads/dont_pack4'
	126
4fe42f32 JC	127	test_expect_success 'test only included refs are packed' '
	128	git branch pack_this1 &&
	129	git branch pack_this2 &&
	130	git tag dont_pack5 &&
	131	git pack-refs --include "refs/heads/pack_this*" &&
	132	test -f .git/refs/tags/dont_pack5 &&
	133	! test -f .git/refs/heads/pack_this1 &&
	134	! test -f .git/refs/heads/pack_this2'
	135
	136	test_expect_success 'test --no-include refs clears included refs' '
	137	git branch pack1 &&
	138	git branch pack2 &&
	139	git pack-refs --include "refs/heads/pack*" --no-include &&
	140	test -f .git/refs/heads/pack1 &&
	141	test -f .git/refs/heads/pack2'
	142
	143	test_expect_success 'test --exclude takes precedence over --include' '
	144	git branch dont_pack5 &&
	145	git pack-refs --include "refs/heads/pack" --exclude "refs/heads/pack" &&
	146	test -f .git/refs/heads/dont_pack5'
	147
3c2f5d26 JC	148	test_expect_success 'see if up-to-date packed refs are preserved' '
	149	git branch q &&
	150	git pack-refs --all --prune &&
	151	git update-ref refs/heads/q refs/heads/q &&
	152	! test -f .git/refs/heads/q
	153	'
5bdd8d4a	154
1b555932	155	test_expect_success 'pack, prune and repack' '
0cb0e143	156	git tag foo &&
5be60078 JH	157	git pack-refs --all --prune &&
	158	git show-ref >all-of-them &&
	159	git pack-refs &&
	160	git show-ref >again &&
4fdf71be	161	test_cmp all-of-them again
1b555932 LT	162	'
1b555932 LT	163
0a0b8d15 MH	164	test_expect_success 'explicit pack-refs with dangling packed reference' '
	165	git commit --allow-empty -m "soon to be garbage-collected" &&
	166	git pack-refs --all &&
	167	git reset --hard HEAD^ &&
	168	git reflog expire --expire=all --all &&
	169	git prune --expire=all &&
	170	git pack-refs --all 2>result &&
ec21ac8c	171	test_must_be_empty result
0a0b8d15 MH	172	'
	173
	174	test_expect_success 'delete ref with dangling packed version' '
	175	git checkout -b lamb &&
	176	git commit --allow-empty -m "future garbage" &&
	177	git pack-refs --all &&
	178	git reset --hard HEAD^ &&
d6c6b108	179	git checkout main &&
0a0b8d15 MH	180	git reflog expire --expire=all --all &&
	181	git prune --expire=all &&
	182	git branch -d lamb 2>result &&
ec21ac8c	183	test_must_be_empty result
0a0b8d15 MH	184	'
0a0b8d15 MH	185
ab292bc4	186	test_expect_success 'delete ref while another dangling packed ref' '
0a0b8d15 MH	187	git branch lamb &&
	188	git commit --allow-empty -m "future garbage" &&
	189	git pack-refs --all &&
	190	git reset --hard HEAD^ &&
	191	git reflog expire --expire=all --all &&
	192	git prune --expire=all &&
	193	git branch -d lamb 2>result &&
ec21ac8c	194	test_must_be_empty result
0a0b8d15 MH	195	'
0a0b8d15 MH	196
afd11d3e JK	197	test_expect_success 'pack ref directly below refs/' '
	198	git update-ref refs/top HEAD &&
	199	git pack-refs --all --prune &&
	200	grep refs/top .git/packed-refs &&
	201	test_path_is_missing .git/refs/top
	202	'
	203
ce414b33 DT	204	test_expect_success 'do not pack ref in refs/bisect' '
	205	git update-ref refs/bisect/local HEAD &&
	206	git pack-refs --all --prune &&
	207	! grep refs/bisect/local .git/packed-refs >/dev/null &&
	208	test_path_is_file .git/refs/bisect/local
	209	'
	210
cbe73331 JK	211	test_expect_success 'disable reflogs' '
	212	git config core.logallrefupdates false &&
	213	rm -rf .git/logs
	214	'
	215
	216	test_expect_success 'create packed foo/bar/baz branch' '
	217	git branch foo/bar/baz &&
	218	git pack-refs --all --prune &&
	219	test_path_is_missing .git/refs/heads/foo/bar/baz &&
d0ab0584	220	test_must_fail git reflog exists refs/heads/foo/bar/baz
cbe73331 JK	221	'
	222
	223	test_expect_success 'notice d/f conflict with existing directory' '
	224	test_must_fail git branch foo &&
	225	test_must_fail git branch foo/bar
	226	'
	227
	228	test_expect_success 'existing directory reports concrete ref' '
	229	test_must_fail git branch foo 2>stderr &&
661558f0	230	test_i18ngrep refs/heads/foo/bar/baz stderr
cbe73331 JK	231	'
	232
	233	test_expect_success 'notice d/f conflict with existing ref' '
	234	test_must_fail git branch foo/bar/baz/extra &&
	235	test_must_fail git branch foo/bar/baz/lots/of/extra/components
	236	'
	237
9308b7f3	238	test_expect_success 'reject packed-refs with unterminated line' '
02a1a420 MH	239	cp .git/packed-refs .git/packed-refs.bak &&
	240	test_when_finished "mv .git/packed-refs.bak .git/packed-refs" &&
	241	printf "%s" "$HEAD refs/zzzzz" >>.git/packed-refs &&
	242	echo "fatal: unterminated line in .git/packed-refs: $HEAD refs/zzzzz" >expected_err &&
	243	test_must_fail git for-each-ref >out 2>err &&
	244	test_cmp expected_err err
	245	'
	246
9308b7f3	247	test_expect_success 'reject packed-refs containing junk' '
02a1a420 MH	248	cp .git/packed-refs .git/packed-refs.bak &&
	249	test_when_finished "mv .git/packed-refs.bak .git/packed-refs" &&
	250	printf "%s\n" "bogus content" >>.git/packed-refs &&
	251	echo "fatal: unexpected line in .git/packed-refs: bogus content" >expected_err &&
	252	test_must_fail git for-each-ref >out 2>err &&
	253	test_cmp expected_err err
	254	'
	255
9308b7f3	256	test_expect_success 'reject packed-refs with a short SHA-1' '
02a1a420 MH	257	cp .git/packed-refs .git/packed-refs.bak &&
	258	test_when_finished "mv .git/packed-refs.bak .git/packed-refs" &&
	259	printf "%.7s %s\n" $HEAD refs/zzzzz >>.git/packed-refs &&
	260	printf "fatal: unexpected line in .git/packed-refs: %.7s %s\n" $HEAD refs/zzzzz >expected_err &&
	261	test_must_fail git for-each-ref >out 2>err &&
	262	test_cmp expected_err err
	263	'
	264
f4ab4f3a MH	265	test_expect_success 'timeout if packed-refs.lock exists' '
	266	LOCK=.git/packed-refs.lock &&
	267	>"$LOCK" &&
	268	test_when_finished "rm -f $LOCK" &&
	269	test_must_fail git pack-refs --all --prune
	270	'
	271
	272	test_expect_success 'retry acquiring packed-refs.lock' '
	273	LOCK=.git/packed-refs.lock &&
	274	>"$LOCK" &&
3ea67379	275	test_when_finished "wait && rm -f $LOCK" &&
f4ab4f3a	276	{
3ea67379	277	( sleep 1 && rm -f $LOCK ) &
f4ab4f3a MH	278	} &&
	279	git -c core.packedrefstimeout=3000 pack-refs --all --prune
	280	'
	281
198b808e MH	282	test_expect_success SYMLINKS 'pack symlinked packed-refs' '
198b808e MH	283	# First make sure that symlinking works when reading:
d6c6b108	284	git update-ref refs/heads/lossy refs/heads/main &&
198b808e MH	285	git for-each-ref >all-refs-before &&
	286	mv .git/packed-refs .git/my-deviant-packed-refs &&
	287	ln -s my-deviant-packed-refs .git/packed-refs &&
	288	git for-each-ref >all-refs-linked &&
	289	test_cmp all-refs-before all-refs-linked &&
	290	git pack-refs --all --prune &&
	291	git for-each-ref >all-refs-packed &&
	292	test_cmp all-refs-before all-refs-packed &&
	293	test -h .git/packed-refs &&
7c0afdf2	294	test "$(test_readlink .git/packed-refs)" = "my-deviant-packed-refs"
198b808e MH	295	'
198b808e MH	296
919a3c98	297	test_done