[thirdparty/git.git] / t / t1450-fsck.sh

#!/bin/sh

test_description='git fsck random collection of tests

* (HEAD) B
* (master) A
'

. ./test-lib.sh

test_expect_success setup '
	git config gc.auto 0 &&
	git config i18n.commitencoding ISO-8859-1 &&
	test_commit A fileA one &&
	git config --unset i18n.commitencoding &&
	git checkout HEAD^0 &&
	test_commit B fileB two &&
	git tag -d A B &&
	git reflog expire --expire=now --all &&
	>empty
'

test_expect_success 'loose objects borrowed from alternate are not missing' '
	mkdir another &&
	(
		cd another &&
		git init &&
		echo ../../../.git/objects >.git/objects/info/alternates &&
		test_commit C fileC one &&
		git fsck --no-dangling >../actual 2>&1
	) &&
	test_cmp empty actual
'

test_expect_success 'HEAD is part of refs, valid objects appear valid' '
	git fsck >actual 2>&1 &&
	test_cmp empty actual
'

# Corruption tests follow.  Make sure to remove all traces of the
# specific corruption you test afterwards, lest a later test trip over
# it.

test_expect_success 'setup: helpers for corruption tests' '
	sha1_file() {
		echo "$*" | sed "s#..#.git/objects/&/#"
	} &&

	remove_object() {
		file=$(sha1_file "$*") &&
		test -e "$file" &&
		rm -f "$file"
	}
'

test_expect_success 'object with bad sha1' '
	sha=$(echo blob | git hash-object -w --stdin) &&
	old=$(echo $sha | sed "s+^..+&/+") &&
	new=$(dirname $old)/ffffffffffffffffffffffffffffffffffffff &&
	sha="$(dirname $new)$(basename $new)" &&
	mv .git/objects/$old .git/objects/$new &&
	test_when_finished "remove_object $sha" &&
	git update-index --add --cacheinfo 100644 $sha foo &&
	test_when_finished "git read-tree -u --reset HEAD" &&
	tree=$(git write-tree) &&
	test_when_finished "remove_object $tree" &&
	cmt=$(echo bogus | git commit-tree $tree) &&
	test_when_finished "remove_object $cmt" &&
	git update-ref refs/heads/bogus $cmt &&
	test_when_finished "git update-ref -d refs/heads/bogus" &&

	test_might_fail git fsck 2>out &&
	cat out &&
	grep "$sha.*corrupt" out
'

test_expect_success 'branch pointing to non-commit' '
	git rev-parse HEAD^{tree} >.git/refs/heads/invalid &&
	test_when_finished "git update-ref -d refs/heads/invalid" &&
	git fsck 2>out &&
	cat out &&
	grep "not a commit" out
'

test_expect_success 'email without @ is okay' '
	git cat-file commit HEAD >basis &&
	sed "s/@/AT/" basis >okay &&
	new=$(git hash-object -t commit -w --stdin <okay) &&
	test_when_finished "remove_object $new" &&
	git update-ref refs/heads/bogus "$new" &&
	test_when_finished "git update-ref -d refs/heads/bogus" &&
	git fsck 2>out &&
	cat out &&
	! grep "commit $new" out
'

test_expect_success 'email with embedded > is not okay' '
	git cat-file commit HEAD >basis &&
	sed "s/@[a-z]/&>/" basis >bad-email &&
	new=$(git hash-object -t commit -w --stdin <bad-email) &&
	test_when_finished "remove_object $new" &&
	git update-ref refs/heads/bogus "$new" &&
	test_when_finished "git update-ref -d refs/heads/bogus" &&
	git fsck 2>out &&
	cat out &&
	grep "error in commit $new" out
'

test_expect_success 'missing < email delimiter is reported nicely' '
	git cat-file commit HEAD >basis &&
	sed "s/<//" basis >bad-email-2 &&
	new=$(git hash-object -t commit -w --stdin <bad-email-2) &&
	test_when_finished "remove_object $new" &&
	git update-ref refs/heads/bogus "$new" &&
	test_when_finished "git update-ref -d refs/heads/bogus" &&
	git fsck 2>out &&
	cat out &&
	grep "error in commit $new.* - bad name" out
'

test_expect_success 'missing email is reported nicely' '
	git cat-file commit HEAD >basis &&
	sed "s/[a-z]* <[^>]*>//" basis >bad-email-3 &&
	new=$(git hash-object -t commit -w --stdin <bad-email-3) &&
	test_when_finished "remove_object $new" &&
	git update-ref refs/heads/bogus "$new" &&
	test_when_finished "git update-ref -d refs/heads/bogus" &&
	git fsck 2>out &&
	cat out &&
	grep "error in commit $new.* - missing email" out
'

test_expect_success '> in name is reported' '
	git cat-file commit HEAD >basis &&
	sed "s/ </> </" basis >bad-email-4 &&
	new=$(git hash-object -t commit -w --stdin <bad-email-4) &&
	test_when_finished "remove_object $new" &&
	git update-ref refs/heads/bogus "$new" &&
	test_when_finished "git update-ref -d refs/heads/bogus" &&
	git fsck 2>out &&
	cat out &&
	grep "error in commit $new" out
'

# date is 2^64 + 1
test_expect_success 'integer overflow in timestamps is reported' '
	git cat-file commit HEAD >basis &&
	sed "s/^\\(author .*>\\) [0-9]*/\\1 18446744073709551617/" \
		<basis >bad-timestamp &&
	new=$(git hash-object -t commit -w --stdin <bad-timestamp) &&
	test_when_finished "remove_object $new" &&
	git update-ref refs/heads/bogus "$new" &&
	test_when_finished "git update-ref -d refs/heads/bogus" &&
	git fsck 2>out &&
	cat out &&
	grep "error in commit $new.*integer overflow" out
'

test_expect_success 'tag pointing to nonexistent' '
	cat >invalid-tag <<-\EOF &&
	object ffffffffffffffffffffffffffffffffffffffff
	type commit
	tag invalid
	tagger T A Gger <tagger@example.com> 1234567890 -0000

	This is an invalid tag.
	EOF

	tag=$(git hash-object -t tag -w --stdin <invalid-tag) &&
	test_when_finished "remove_object $tag" &&
	echo $tag >.git/refs/tags/invalid &&
	test_when_finished "git update-ref -d refs/tags/invalid" &&
	test_must_fail git fsck --tags >out &&
	cat out &&
	grep "broken link" out
'

test_expect_success 'tag pointing to something else than its type' '
	sha=$(echo blob | git hash-object -w --stdin) &&
	test_when_finished "remove_object $sha" &&
	cat >wrong-tag <<-EOF &&
	object $sha
	type commit
	tag wrong
	tagger T A Gger <tagger@example.com> 1234567890 -0000

	This is an invalid tag.
	EOF

	tag=$(git hash-object -t tag -w --stdin <wrong-tag) &&
	test_when_finished "remove_object $tag" &&
	echo $tag >.git/refs/tags/wrong &&
	test_when_finished "git update-ref -d refs/tags/wrong" &&
	test_must_fail git fsck --tags
'

test_expect_success 'tag with incorrect tag name & missing tagger' '
	sha=$(git rev-parse HEAD) &&
	cat >wrong-tag <<-EOF &&
	object $sha
	type commit
	tag wrong name format

	This is an invalid tag.
	EOF

	tag=$(git hash-object -t tag -w --stdin <wrong-tag) &&
	test_when_finished "remove_object $tag" &&
	echo $tag >.git/refs/tags/wrong &&
	test_when_finished "git update-ref -d refs/tags/wrong" &&
	git fsck --tags 2>out &&
	grep "invalid .tag. name" out &&
	grep "expected .tagger. line" out
'

test_expect_success 'cleaned up' '
	git fsck >actual 2>&1 &&
	test_cmp empty actual
'

test_expect_success 'rev-list --verify-objects' '
	git rev-list --verify-objects --all >/dev/null 2>out &&
	test_cmp empty out
'

test_expect_success 'rev-list --verify-objects with bad sha1' '
	sha=$(echo blob | git hash-object -w --stdin) &&
	old=$(echo $sha | sed "s+^..+&/+") &&
	new=$(dirname $old)/ffffffffffffffffffffffffffffffffffffff &&
	sha="$(dirname $new)$(basename $new)" &&
	mv .git/objects/$old .git/objects/$new &&
	test_when_finished "remove_object $sha" &&
	git update-index --add --cacheinfo 100644 $sha foo &&
	test_when_finished "git read-tree -u --reset HEAD" &&
	tree=$(git write-tree) &&
	test_when_finished "remove_object $tree" &&
	cmt=$(echo bogus | git commit-tree $tree) &&
	test_when_finished "remove_object $cmt" &&
	git update-ref refs/heads/bogus $cmt &&
	test_when_finished "git update-ref -d refs/heads/bogus" &&

	test_might_fail git rev-list --verify-objects refs/heads/bogus >/dev/null 2>out &&
	cat out &&
	grep -q "error: sha1 mismatch 63ffffffffffffffffffffffffffffffffffffff" out
'

_bz='\0'
_bz5="$_bz$_bz$_bz$_bz$_bz"
_bz20="$_bz5$_bz5$_bz5$_bz5"

test_expect_success 'fsck notices blob entry pointing to null sha1' '
	(git init null-blob &&
	 cd null-blob &&
	 sha=$(printf "100644 file$_bz$_bz20" |
	       git hash-object -w --stdin -t tree) &&
	  git fsck 2>out &&
	  cat out &&
	  grep "warning.*null sha1" out
	)
'

test_expect_success 'fsck notices submodule entry pointing to null sha1' '
	(git init null-commit &&
	 cd null-commit &&
	 sha=$(printf "160000 submodule$_bz$_bz20" |
	       git hash-object -w --stdin -t tree) &&
	  git fsck 2>out &&
	  cat out &&
	  grep "warning.*null sha1" out
	)
'

test_expect_success 'fsck notices "." and ".." in trees' '
	(
		git init dots &&
		cd dots &&
		blob=$(echo foo | git hash-object -w --stdin) &&
		tab=$(printf "\\t") &&
		git mktree <<-EOF &&
		100644 blob $blob$tab.
		100644 blob $blob$tab..
		EOF
		git fsck 2>out &&
		cat out &&
		grep "warning.*\\." out
	)
'

test_expect_success 'fsck notices ".git" in trees' '
	(
		git init dotgit &&
		cd dotgit &&
		blob=$(echo foo | git hash-object -w --stdin) &&
		tab=$(printf "\\t") &&
		git mktree <<-EOF &&
		100644 blob $blob$tab.git
		EOF
		git fsck 2>out &&
		cat out &&
		grep "warning.*\\.git" out
	)
'

test_done
Commit	Line	Data
469e2ebf JH	1	#!/bin/sh
469e2ebf JH	2
dbedf8bf JN	3	test_description='git fsck random collection of tests
	4
	5	* (HEAD) B
	6	* (master) A
	7	'
469e2ebf JH	8
	9	. ./test-lib.sh
	10
	11	test_expect_success setup '
dbedf8bf	12	git config gc.auto 0 &&
0adc6a3d	13	git config i18n.commitencoding ISO-8859-1 &&
469e2ebf	14	test_commit A fileA one &&
0adc6a3d	15	git config --unset i18n.commitencoding &&
469e2ebf JH	16	git checkout HEAD^0 &&
	17	test_commit B fileB two &&
	18	git tag -d A B &&
dbedf8bf JN	19	git reflog expire --expire=now --all &&
dbedf8bf JN	20	>empty
469e2ebf JH	21	'
469e2ebf JH	22
e15ef669 JH	23	test_expect_success 'loose objects borrowed from alternate are not missing' '
	24	mkdir another &&
	25	(
	26	cd another &&
	27	git init &&
	28	echo ../../../.git/objects >.git/objects/info/alternates &&
	29	test_commit C fileC one &&
c6a13b2c	30	git fsck --no-dangling >../actual 2>&1
dbedf8bf	31	) &&
dbedf8bf	32	test_cmp empty actual
e15ef669 JH	33	'
e15ef669 JH	34
dbedf8bf JN	35	test_expect_success 'HEAD is part of refs, valid objects appear valid' '
	36	git fsck >actual 2>&1 &&
	37	test_cmp empty actual
0adc6a3d JN	38	'
0adc6a3d JN	39
02a6552c TR	40	# Corruption tests follow. Make sure to remove all traces of the
	41	# specific corruption you test afterwards, lest a later test trip over
	42	# it.
	43
dbedf8bf JN	44	test_expect_success 'setup: helpers for corruption tests' '
	45	sha1_file() {
	46	echo "$*" \| sed "s#..#.git/objects/&/#"
	47	} &&
	48
	49	remove_object() {
	50	file=$(sha1_file "$*") &&
	51	test -e "$file" &&
	52	rm -f "$file"
	53	}
	54	'
	55
02a6552c TR	56	test_expect_success 'object with bad sha1' '
02a6552c TR	57	sha=$(echo blob \| git hash-object -w --stdin) &&
02a6552c TR	58	old=$(echo $sha \| sed "s+^..+&/+") &&
02a6552c TR	59	new=$(dirname $old)/ffffffffffffffffffffffffffffffffffffff &&
a48fcd83	60	sha="$(dirname $new)$(basename $new)" &&
02a6552c	61	mv .git/objects/$old .git/objects/$new &&
dbedf8bf	62	test_when_finished "remove_object $sha" &&
02a6552c	63	git update-index --add --cacheinfo 100644 $sha foo &&
dbedf8bf	64	test_when_finished "git read-tree -u --reset HEAD" &&
02a6552c	65	tree=$(git write-tree) &&
dbedf8bf	66	test_when_finished "remove_object $tree" &&
02a6552c	67	cmt=$(echo bogus \| git commit-tree $tree) &&
dbedf8bf	68	test_when_finished "remove_object $cmt" &&
02a6552c	69	git update-ref refs/heads/bogus $cmt &&
dbedf8bf JN	70	test_when_finished "git update-ref -d refs/heads/bogus" &&
	71
	72	test_might_fail git fsck 2>out &&
	73	cat out &&
	74	grep "$sha.*corrupt" out
02a6552c TR	75	'
	76
	77	test_expect_success 'branch pointing to non-commit' '
dbedf8bf JN	78	git rev-parse HEAD^{tree} >.git/refs/heads/invalid &&
dbedf8bf JN	79	test_when_finished "git update-ref -d refs/heads/invalid" &&
02a6552c	80	git fsck 2>out &&
dbedf8bf JN	81	cat out &&
dbedf8bf JN	82	grep "not a commit" out
02a6552c TR	83	'
02a6552c TR	84
daae1922 JN	85	test_expect_success 'email without @ is okay' '
	86	git cat-file commit HEAD >basis &&
	87	sed "s/@/AT/" basis >okay &&
	88	new=$(git hash-object -t commit -w --stdin <okay) &&
dbedf8bf	89	test_when_finished "remove_object $new" &&
daae1922	90	git update-ref refs/heads/bogus "$new" &&
dbedf8bf	91	test_when_finished "git update-ref -d refs/heads/bogus" &&
daae1922 JN	92	git fsck 2>out &&
daae1922 JN	93	cat out &&
dbedf8bf	94	! grep "commit $new" out
daae1922	95	'
daae1922	96
daae1922 JN	97	test_expect_success 'email with embedded > is not okay' '
	98	git cat-file commit HEAD >basis &&
	99	sed "s/@[a-z]/&>/" basis >bad-email &&
	100	new=$(git hash-object -t commit -w --stdin <bad-email) &&
dbedf8bf	101	test_when_finished "remove_object $new" &&
daae1922	102	git update-ref refs/heads/bogus "$new" &&
dbedf8bf	103	test_when_finished "git update-ref -d refs/heads/bogus" &&
daae1922 JN	104	git fsck 2>out &&
	105	cat out &&
	106	grep "error in commit $new" out
	107	'
02a6552c	108
53f53cff	109	test_expect_success 'missing < email delimiter is reported nicely' '
e3c98120 DI	110	git cat-file commit HEAD >basis &&
	111	sed "s/<//" basis >bad-email-2 &&
	112	new=$(git hash-object -t commit -w --stdin <bad-email-2) &&
	113	test_when_finished "remove_object $new" &&
	114	git update-ref refs/heads/bogus "$new" &&
	115	test_when_finished "git update-ref -d refs/heads/bogus" &&
	116	git fsck 2>out &&
	117	cat out &&
	118	grep "error in commit $new.* - bad name" out
	119	'
	120
53f53cff	121	test_expect_success 'missing email is reported nicely' '
e3c98120 DI	122	git cat-file commit HEAD >basis &&
	123	sed "s/[a-z]* <[^>]*>//" basis >bad-email-3 &&
	124	new=$(git hash-object -t commit -w --stdin <bad-email-3) &&
	125	test_when_finished "remove_object $new" &&
	126	git update-ref refs/heads/bogus "$new" &&
	127	test_when_finished "git update-ref -d refs/heads/bogus" &&
	128	git fsck 2>out &&
	129	cat out &&
	130	grep "error in commit $new.* - missing email" out
	131	'
	132
53f53cff	133	test_expect_success '> in name is reported' '
e3c98120 DI	134	git cat-file commit HEAD >basis &&
	135	sed "s/ </> </" basis >bad-email-4 &&
	136	new=$(git hash-object -t commit -w --stdin <bad-email-4) &&
	137	test_when_finished "remove_object $new" &&
	138	git update-ref refs/heads/bogus "$new" &&
	139	test_when_finished "git update-ref -d refs/heads/bogus" &&
	140	git fsck 2>out &&
	141	cat out &&
	142	grep "error in commit $new" out
	143	'
	144
d4b8de04 JK	145	# date is 2^64 + 1
	146	test_expect_success 'integer overflow in timestamps is reported' '
	147	git cat-file commit HEAD >basis &&
	148	sed "s/^\\(author .>\\) [0-9]/\\1 18446744073709551617/" \
	149	<basis >bad-timestamp &&
	150	new=$(git hash-object -t commit -w --stdin <bad-timestamp) &&
	151	test_when_finished "remove_object $new" &&
	152	git update-ref refs/heads/bogus "$new" &&
	153	test_when_finished "git update-ref -d refs/heads/bogus" &&
	154	git fsck 2>out &&
	155	cat out &&
	156	grep "error in commit $new.*integer overflow" out
	157	'
	158
4551d035	159	test_expect_success 'tag pointing to nonexistent' '
a48fcd83	160	cat >invalid-tag <<-\EOF &&
dbedf8bf JN	161	object ffffffffffffffffffffffffffffffffffffffff
	162	type commit
	163	tag invalid
	164	tagger T A Gger <tagger@example.com> 1234567890 -0000
	165
	166	This is an invalid tag.
	167	EOF
	168
	169	tag=$(git hash-object -t tag -w --stdin <invalid-tag) &&
	170	test_when_finished "remove_object $tag" &&
	171	echo $tag >.git/refs/tags/invalid &&
	172	test_when_finished "git update-ref -d refs/tags/invalid" &&
4551d035	173	test_must_fail git fsck --tags >out &&
02a6552c	174	cat out &&
dbedf8bf	175	grep "broken link" out
02a6552c TR	176	'
02a6552c TR	177
4551d035	178	test_expect_success 'tag pointing to something else than its type' '
dbedf8bf JN	179	sha=$(echo blob \| git hash-object -w --stdin) &&
	180	test_when_finished "remove_object $sha" &&
	181	cat >wrong-tag <<-EOF &&
	182	object $sha
	183	type commit
	184	tag wrong
	185	tagger T A Gger <tagger@example.com> 1234567890 -0000
	186
	187	This is an invalid tag.
	188	EOF
	189
	190	tag=$(git hash-object -t tag -w --stdin <wrong-tag) &&
	191	test_when_finished "remove_object $tag" &&
	192	echo $tag >.git/refs/tags/wrong &&
	193	test_when_finished "git update-ref -d refs/tags/wrong" &&
9dad83be	194	test_must_fail git fsck --tags
02a6552c TR	195	'
02a6552c TR	196
90e3e5f0 JS	197	test_expect_success 'tag with incorrect tag name & missing tagger' '
	198	sha=$(git rev-parse HEAD) &&
	199	cat >wrong-tag <<-EOF &&
	200	object $sha
	201	type commit
	202	tag wrong name format
	203
	204	This is an invalid tag.
	205	EOF
	206
	207	tag=$(git hash-object -t tag -w --stdin <wrong-tag) &&
	208	test_when_finished "remove_object $tag" &&
	209	echo $tag >.git/refs/tags/wrong &&
	210	test_when_finished "git update-ref -d refs/tags/wrong" &&
	211	git fsck --tags 2>out &&
	212	grep "invalid .tag. name" out &&
	213	grep "expected .tagger. line" out
	214	'
	215
dbedf8bf JN	216	test_expect_success 'cleaned up' '
	217	git fsck >actual 2>&1 &&
	218	test_cmp empty actual
	219	'
02a6552c	220
cb8da705 CB	221	test_expect_success 'rev-list --verify-objects' '
	222	git rev-list --verify-objects --all >/dev/null 2>out &&
	223	test_cmp empty out
	224	'
	225
	226	test_expect_success 'rev-list --verify-objects with bad sha1' '
	227	sha=$(echo blob \| git hash-object -w --stdin) &&
	228	old=$(echo $sha \| sed "s+^..+&/+") &&
	229	new=$(dirname $old)/ffffffffffffffffffffffffffffffffffffff &&
	230	sha="$(dirname $new)$(basename $new)" &&
	231	mv .git/objects/$old .git/objects/$new &&
	232	test_when_finished "remove_object $sha" &&
	233	git update-index --add --cacheinfo 100644 $sha foo &&
	234	test_when_finished "git read-tree -u --reset HEAD" &&
	235	tree=$(git write-tree) &&
	236	test_when_finished "remove_object $tree" &&
	237	cmt=$(echo bogus \| git commit-tree $tree) &&
	238	test_when_finished "remove_object $cmt" &&
	239	git update-ref refs/heads/bogus $cmt &&
	240	test_when_finished "git update-ref -d refs/heads/bogus" &&
	241
	242	test_might_fail git rev-list --verify-objects refs/heads/bogus >/dev/null 2>out &&
	243	cat out &&
	244	grep -q "error: sha1 mismatch 63ffffffffffffffffffffffffffffffffffffff" out
	245	'
	246
c479d14a JK	247	_bz='\0'
	248	_bz5="$_bz$_bz$_bz$_bz$_bz"
	249	_bz20="$_bz5$_bz5$_bz5$_bz5"
	250
	251	test_expect_success 'fsck notices blob entry pointing to null sha1' '
	252	(git init null-blob &&
	253	cd null-blob &&
	254	sha=$(printf "100644 file$_bz$_bz20" \|
	255	git hash-object -w --stdin -t tree) &&
	256	git fsck 2>out &&
	257	cat out &&
	258	grep "warning.*null sha1" out
	259	)
	260	'
	261
	262	test_expect_success 'fsck notices submodule entry pointing to null sha1' '
	263	(git init null-commit &&
	264	cd null-commit &&
	265	sha=$(printf "160000 submodule$_bz$_bz20" \|
	266	git hash-object -w --stdin -t tree) &&
	267	git fsck 2>out &&
	268	cat out &&
	269	grep "warning.*null sha1" out
	270	)
	271	'
	272
5d34a435 JK	273	test_expect_success 'fsck notices "." and ".." in trees' '
	274	(
	275	git init dots &&
	276	cd dots &&
	277	blob=$(echo foo \| git hash-object -w --stdin) &&
	278	tab=$(printf "\\t") &&
	279	git mktree <<-EOF &&
	280	100644 blob $blob$tab.
	281	100644 blob $blob$tab..
	282	EOF
	283	git fsck 2>out &&
	284	cat out &&
	285	grep "warning.*\\." out
	286	)
	287	'
	288
5c17f512 JK	289	test_expect_success 'fsck notices ".git" in trees' '
	290	(
	291	git init dotgit &&
	292	cd dotgit &&
	293	blob=$(echo foo \| git hash-object -w --stdin) &&
	294	tab=$(printf "\\t") &&
	295	git mktree <<-EOF &&
	296	100644 blob $blob$tab.git
	297	EOF
	298	git fsck 2>out &&
	299	cat out &&
	300	grep "warning.*\\.git" out
	301	)
	302	'
	303
469e2ebf	304	test_done