[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

if test_have_prereq !REFFILES
then
  skip_all='skipping files-backend specific pack-refs tests'
  test_done
fi

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_grep 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
bbd61069 PS	18	if test_have_prereq !REFFILES
	19	then
	20	skip_all='skipping files-backend specific pack-refs tests'
	21	test_done
	22	fi
	23
cbe73331 JK	24	test_expect_success 'enable reflogs' '
	25	git config core.logallrefupdates true
	26	'
3b463c3f	27
3c2f5d26 JC	28	test_expect_success 'prepare a trivial repository' '
	29	echo Hello > A &&
	30	git update-index --add A &&
	31	git commit -m "Initial commit." &&
	32	HEAD=$(git rev-parse --verify HEAD)
	33	'
919a3c98 CC	34
	35	SHA1=
	36
3c2f5d26 JC	37	test_expect_success 'see if git show-ref works as expected' '
	38	git branch a &&
	39	SHA1=$(cat .git/refs/heads/a) &&
	40	echo "$SHA1 refs/heads/a" >expect &&
	41	git show-ref a >result &&
	42	test_cmp expect result
	43	'
	44
	45	test_expect_success 'see if a branch still exists when packed' '
	46	git branch b &&
	47	git pack-refs --all &&
	48	rm -f .git/refs/heads/b &&
	49	echo "$SHA1 refs/heads/b" >expect &&
	50	git show-ref b >result &&
	51	test_cmp expect result
	52	'
919a3c98	53
41ac414e	54	test_expect_success 'git branch c/d should barf if branch c exists' '
3c2f5d26 JC	55	git branch c &&
	56	git pack-refs --all &&
	57	rm -f .git/refs/heads/c &&
	58	test_must_fail git branch c/d
41ac414e	59	'
919a3c98	60
3c2f5d26 JC	61	test_expect_success 'see if a branch still exists after git pack-refs --prune' '
	62	git branch e &&
	63	git pack-refs --all --prune &&
	64	echo "$SHA1 refs/heads/e" >expect &&
	65	git show-ref e >result &&
	66	test_cmp expect result
	67	'
919a3c98	68
41ac414e	69	test_expect_success 'see if git pack-refs --prune remove ref files' '
3c2f5d26 JC	70	git branch f &&
	71	git pack-refs --all --prune &&
	72	! test -f .git/refs/heads/f
41ac414e	73	'
919a3c98	74
be7c6d46	75	test_expect_success 'see if git pack-refs --prune removes empty dirs' '
3c2f5d26 JC	76	git branch r/s/t &&
	77	git pack-refs --all --prune &&
	78	! test -e .git/refs/heads/r
be7c6d46 GP	79	'
be7c6d46 GP	80
3c2f5d26 JC	81	test_expect_success 'git branch g should work when git branch g/h has been deleted' '
	82	git branch g/h &&
	83	git pack-refs --all --prune &&
	84	git branch -d g/h &&
	85	git branch g &&
	86	git pack-refs --all &&
	87	git branch -d g
	88	'
919a3c98	89
41ac414e	90	test_expect_success 'git branch i/j/k should barf if branch i exists' '
3c2f5d26 JC	91	git branch i &&
	92	git pack-refs --all --prune &&
	93	test_must_fail git branch i/j/k
	94	'
	95
	96	test_expect_success 'test git branch k after branch k/l/m and k/lm have been deleted' '
	97	git branch k/l &&
	98	git branch k/lm &&
	99	git branch -d k/l &&
	100	git branch k/l/m &&
	101	git branch -d k/l/m &&
	102	git branch -d k/lm &&
	103	git branch k
	104	'
	105
	106	test_expect_success 'test git branch n after some branch deletion and pruning' '
	107	git branch n/o &&
	108	git branch n/op &&
	109	git branch -d n/o &&
	110	git branch n/o/p &&
	111	git branch -d n/op &&
	112	git pack-refs --all --prune &&
	113	git branch -d n/o/p &&
	114	git branch n
	115	'
14c8a681	116
826ae79f JC	117	test_expect_success 'test excluded refs are not packed' '
	118	git branch dont_pack1 &&
	119	git branch dont_pack2 &&
	120	git branch pack_this &&
	121	git pack-refs --all --exclude "refs/heads/dont_pack*" &&
	122	test -f .git/refs/heads/dont_pack1 &&
	123	test -f .git/refs/heads/dont_pack2 &&
	124	! test -f .git/refs/heads/pack_this'
	125
	126	test_expect_success 'test --no-exclude refs clears excluded refs' '
	127	git branch dont_pack3 &&
	128	git branch dont_pack4 &&
	129	git pack-refs --all --exclude "refs/heads/dont_pack*" --no-exclude &&
	130	! test -f .git/refs/heads/dont_pack3 &&
	131	! test -f .git/refs/heads/dont_pack4'
	132
4fe42f32 JC	133	test_expect_success 'test only included refs are packed' '
	134	git branch pack_this1 &&
	135	git branch pack_this2 &&
	136	git tag dont_pack5 &&
	137	git pack-refs --include "refs/heads/pack_this*" &&
	138	test -f .git/refs/tags/dont_pack5 &&
	139	! test -f .git/refs/heads/pack_this1 &&
	140	! test -f .git/refs/heads/pack_this2'
	141
	142	test_expect_success 'test --no-include refs clears included refs' '
	143	git branch pack1 &&
	144	git branch pack2 &&
	145	git pack-refs --include "refs/heads/pack*" --no-include &&
	146	test -f .git/refs/heads/pack1 &&
	147	test -f .git/refs/heads/pack2'
	148
	149	test_expect_success 'test --exclude takes precedence over --include' '
	150	git branch dont_pack5 &&
	151	git pack-refs --include "refs/heads/pack" --exclude "refs/heads/pack" &&
	152	test -f .git/refs/heads/dont_pack5'
	153
3c2f5d26 JC	154	test_expect_success 'see if up-to-date packed refs are preserved' '
	155	git branch q &&
	156	git pack-refs --all --prune &&
	157	git update-ref refs/heads/q refs/heads/q &&
	158	! test -f .git/refs/heads/q
	159	'
5bdd8d4a	160
1b555932	161	test_expect_success 'pack, prune and repack' '
0cb0e143	162	git tag foo &&
5be60078 JH	163	git pack-refs --all --prune &&
	164	git show-ref >all-of-them &&
	165	git pack-refs &&
	166	git show-ref >again &&
4fdf71be	167	test_cmp all-of-them again
1b555932 LT	168	'
1b555932 LT	169
0a0b8d15 MH	170	test_expect_success 'explicit pack-refs with dangling packed reference' '
	171	git commit --allow-empty -m "soon to be garbage-collected" &&
	172	git pack-refs --all &&
	173	git reset --hard HEAD^ &&
	174	git reflog expire --expire=all --all &&
	175	git prune --expire=all &&
	176	git pack-refs --all 2>result &&
ec21ac8c	177	test_must_be_empty result
0a0b8d15 MH	178	'
	179
	180	test_expect_success 'delete ref with dangling packed version' '
	181	git checkout -b lamb &&
	182	git commit --allow-empty -m "future garbage" &&
	183	git pack-refs --all &&
	184	git reset --hard HEAD^ &&
d6c6b108	185	git checkout main &&
0a0b8d15 MH	186	git reflog expire --expire=all --all &&
	187	git prune --expire=all &&
	188	git branch -d lamb 2>result &&
ec21ac8c	189	test_must_be_empty result
0a0b8d15 MH	190	'
0a0b8d15 MH	191
ab292bc4	192	test_expect_success 'delete ref while another dangling packed ref' '
0a0b8d15 MH	193	git branch lamb &&
	194	git commit --allow-empty -m "future garbage" &&
	195	git pack-refs --all &&
	196	git reset --hard HEAD^ &&
	197	git reflog expire --expire=all --all &&
	198	git prune --expire=all &&
	199	git branch -d lamb 2>result &&
ec21ac8c	200	test_must_be_empty result
0a0b8d15 MH	201	'
0a0b8d15 MH	202
afd11d3e JK	203	test_expect_success 'pack ref directly below refs/' '
	204	git update-ref refs/top HEAD &&
	205	git pack-refs --all --prune &&
	206	grep refs/top .git/packed-refs &&
	207	test_path_is_missing .git/refs/top
	208	'
	209
ce414b33 DT	210	test_expect_success 'do not pack ref in refs/bisect' '
	211	git update-ref refs/bisect/local HEAD &&
	212	git pack-refs --all --prune &&
	213	! grep refs/bisect/local .git/packed-refs >/dev/null &&
	214	test_path_is_file .git/refs/bisect/local
	215	'
	216
cbe73331 JK	217	test_expect_success 'disable reflogs' '
	218	git config core.logallrefupdates false &&
	219	rm -rf .git/logs
	220	'
	221
	222	test_expect_success 'create packed foo/bar/baz branch' '
	223	git branch foo/bar/baz &&
	224	git pack-refs --all --prune &&
	225	test_path_is_missing .git/refs/heads/foo/bar/baz &&
d0ab0584	226	test_must_fail git reflog exists refs/heads/foo/bar/baz
cbe73331 JK	227	'
	228
	229	test_expect_success 'notice d/f conflict with existing directory' '
	230	test_must_fail git branch foo &&
	231	test_must_fail git branch foo/bar
	232	'
	233
	234	test_expect_success 'existing directory reports concrete ref' '
	235	test_must_fail git branch foo 2>stderr &&
6789275d	236	test_grep refs/heads/foo/bar/baz stderr
cbe73331 JK	237	'
	238
	239	test_expect_success 'notice d/f conflict with existing ref' '
	240	test_must_fail git branch foo/bar/baz/extra &&
	241	test_must_fail git branch foo/bar/baz/lots/of/extra/components
	242	'
	243
9308b7f3	244	test_expect_success 'reject packed-refs with unterminated line' '
02a1a420 MH	245	cp .git/packed-refs .git/packed-refs.bak &&
	246	test_when_finished "mv .git/packed-refs.bak .git/packed-refs" &&
	247	printf "%s" "$HEAD refs/zzzzz" >>.git/packed-refs &&
	248	echo "fatal: unterminated line in .git/packed-refs: $HEAD refs/zzzzz" >expected_err &&
	249	test_must_fail git for-each-ref >out 2>err &&
	250	test_cmp expected_err err
	251	'
	252
9308b7f3	253	test_expect_success 'reject packed-refs containing junk' '
02a1a420 MH	254	cp .git/packed-refs .git/packed-refs.bak &&
	255	test_when_finished "mv .git/packed-refs.bak .git/packed-refs" &&
	256	printf "%s\n" "bogus content" >>.git/packed-refs &&
	257	echo "fatal: unexpected line in .git/packed-refs: bogus content" >expected_err &&
	258	test_must_fail git for-each-ref >out 2>err &&
	259	test_cmp expected_err err
	260	'
	261
9308b7f3	262	test_expect_success 'reject packed-refs with a short SHA-1' '
02a1a420 MH	263	cp .git/packed-refs .git/packed-refs.bak &&
	264	test_when_finished "mv .git/packed-refs.bak .git/packed-refs" &&
	265	printf "%.7s %s\n" $HEAD refs/zzzzz >>.git/packed-refs &&
	266	printf "fatal: unexpected line in .git/packed-refs: %.7s %s\n" $HEAD refs/zzzzz >expected_err &&
	267	test_must_fail git for-each-ref >out 2>err &&
	268	test_cmp expected_err err
	269	'
	270
f4ab4f3a MH	271	test_expect_success 'timeout if packed-refs.lock exists' '
	272	LOCK=.git/packed-refs.lock &&
	273	>"$LOCK" &&
	274	test_when_finished "rm -f $LOCK" &&
	275	test_must_fail git pack-refs --all --prune
	276	'
	277
	278	test_expect_success 'retry acquiring packed-refs.lock' '
	279	LOCK=.git/packed-refs.lock &&
	280	>"$LOCK" &&
3ea67379	281	test_when_finished "wait && rm -f $LOCK" &&
f4ab4f3a	282	{
3ea67379	283	( sleep 1 && rm -f $LOCK ) &
f4ab4f3a MH	284	} &&
	285	git -c core.packedrefstimeout=3000 pack-refs --all --prune
	286	'
	287
198b808e MH	288	test_expect_success SYMLINKS 'pack symlinked packed-refs' '
198b808e MH	289	# First make sure that symlinking works when reading:
d6c6b108	290	git update-ref refs/heads/lossy refs/heads/main &&
198b808e MH	291	git for-each-ref >all-refs-before &&
	292	mv .git/packed-refs .git/my-deviant-packed-refs &&
	293	ln -s my-deviant-packed-refs .git/packed-refs &&
	294	git for-each-ref >all-refs-linked &&
	295	test_cmp all-refs-before all-refs-linked &&
	296	git pack-refs --all --prune &&
	297	git for-each-ref >all-refs-packed &&
	298	test_cmp all-refs-before all-refs-packed &&
	299	test -h .git/packed-refs &&
7c0afdf2	300	test "$(test_readlink .git/packed-refs)" = "my-deviant-packed-refs"
198b808e MH	301	'
198b808e MH	302
919a3c98	303	test_done