[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_must_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" &&
	test_must_fail git fsck 2>out &&
	cat out &&
	grep "not a commit" out
'

test_expect_success 'HEAD link pointing at a funny object' '
	test_when_finished "mv .git/SAVED_HEAD .git/HEAD" &&
	mv .git/HEAD .git/SAVED_HEAD &&
	echo 0000000000000000000000000000000000000000 >.git/HEAD &&
	# avoid corrupt/broken HEAD from interfering with repo discovery
	test_must_fail env GIT_DIR=.git git fsck 2>out &&
	cat out &&
	grep "detached HEAD points" out
'

test_expect_success 'HEAD link pointing at a funny place' '
	test_when_finished "mv .git/SAVED_HEAD .git/HEAD" &&
	mv .git/HEAD .git/SAVED_HEAD &&
	echo "ref: refs/funny/place" >.git/HEAD &&
	# avoid corrupt/broken HEAD from interfering with repo discovery
	test_must_fail env GIT_DIR=.git git fsck 2>out &&
	cat out &&
	grep "HEAD points to something strange" 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" &&
	test_must_fail 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" &&
	test_must_fail 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" &&
	test_must_fail 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" &&
	test_must_fail 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" &&
	test_must_fail git fsck 2>out &&
	cat out &&
	grep "error in commit $new.*integer overflow" out
'

test_expect_success 'malformatted tree object' '
	test_when_finished "git update-ref -d refs/tags/wrong" &&
	test_when_finished "remove_object \$T" &&
	T=$(
		GIT_INDEX_FILE=test-index &&
		export GIT_INDEX_FILE &&
		rm -f test-index &&
		>x &&
		git add x &&
		T=$(git write-tree) &&
		(
			git cat-file tree $T &&
			git cat-file tree $T
		) |
		git hash-object -w -t tree --stdin
	) &&
	test_must_fail git fsck 2>out &&
	grep "error in tree .*contains duplicate file entries" 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 &&

	cat >expect <<-EOF &&
	warning in tag $tag: badTagName: invalid '\''tag'\'' name: wrong name format
	warning in tag $tag: missingTaggerEntry: invalid format - expected '\''tagger'\'' line
	EOF
	test_cmp expect out
'

test_expect_success 'tag with bad tagger' '
	sha=$(git rev-parse HEAD) &&
	cat >wrong-tag <<-EOF &&
	object $sha
	type commit
	tag not-quite-wrong
	tagger Bad Tagger Name

	This is an invalid tag.
	EOF

	tag=$(git hash-object --literally -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 2>out &&
	grep "error in tag .*: invalid author/committer" 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
'

test_expect_success 'force fsck to ignore double author' '
	git cat-file commit HEAD >basis &&
	sed "s/^author .*/&,&/" <basis | tr , \\n >multiple-authors &&
	new=$(git hash-object -t commit -w --stdin <multiple-authors) &&
	test_when_finished "remove_object $new" &&
	git update-ref refs/heads/bogus "$new" &&
	test_when_finished "git update-ref -d refs/heads/bogus" &&
	test_must_fail git fsck &&
	git -c fsck.multipleAuthors=ignore fsck
'

_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
	)
'

while read name path pretty; do
	while read mode type; do
		: ${pretty:=$path}
		test_expect_success "fsck notices $pretty as $type" '
		(
			git init $name-$type &&
			cd $name-$type &&
			echo content >file &&
			git add file &&
			git commit -m base &&
			blob=$(git rev-parse :file) &&
			tree=$(git rev-parse HEAD^{tree}) &&
			value=$(eval "echo \$$type") &&
			printf "$mode $type %s\t%s" "$value" "$path" >bad &&
			bad_tree=$(git mktree <bad) &&
			git fsck 2>out &&
			cat out &&
			grep "warning.*tree $bad_tree" out
		)'
	done <<-\EOF
	100644 blob
	040000 tree
	EOF
done <<-EOF
dot .
dotdot ..
dotgit .git
dotgit-case .GIT
dotgit-unicode .gI${u200c}T .gI{u200c}T
dotgit-case2 .Git
git-tilde1 git~1
dotgitdot .git.
dot-backslash-case .\\\\.GIT\\\\foobar
dotgit-case-backslash .git\\\\foobar
EOF

test_expect_success 'fsck allows .Ňit' '
	(
		git init not-dotgit &&
		cd not-dotgit &&
		echo content >file &&
		git add file &&
		git commit -m base &&
		blob=$(git rev-parse :file) &&
		printf "100644 blob $blob\t.\\305\\207it" >tree &&
		tree=$(git mktree <tree) &&
		git fsck 2>err &&
		test_line_count = 0 err
	)
'

# create a static test repo which is broken by omitting
# one particular object ($1, which is looked up via rev-parse
# in the new repository).
create_repo_missing () {
	rm -rf missing &&
	git init missing &&
	(
		cd missing &&
		git commit -m one --allow-empty &&
		mkdir subdir &&
		echo content >subdir/file &&
		git add subdir/file &&
		git commit -m two &&
		unrelated=$(echo unrelated | git hash-object --stdin -w) &&
		git tag -m foo tag $unrelated &&
		sha1=$(git rev-parse --verify "$1") &&
		path=$(echo $sha1 | sed 's|..|&/|') &&
		rm .git/objects/$path
	)
}

test_expect_success 'fsck notices missing blob' '
	create_repo_missing HEAD:subdir/file &&
	test_must_fail git -C missing fsck
'

test_expect_success 'fsck notices missing subtree' '
	create_repo_missing HEAD:subdir &&
	test_must_fail git -C missing fsck
'

test_expect_success 'fsck notices missing root tree' '
	create_repo_missing HEAD^{tree} &&
	test_must_fail git -C missing fsck
'

test_expect_success 'fsck notices missing parent' '
	create_repo_missing HEAD^ &&
	test_must_fail git -C missing fsck
'

test_expect_success 'fsck notices missing tagged object' '
	create_repo_missing tag^{blob} &&
	test_must_fail git -C missing fsck
'

test_expect_success 'fsck notices ref pointing to missing commit' '
	create_repo_missing HEAD &&
	test_must_fail git -C missing fsck
'

test_expect_success 'fsck notices ref pointing to missing tag' '
	create_repo_missing tag &&
	test_must_fail git -C missing fsck
'

test_expect_success 'fsck --connectivity-only' '
	rm -rf connectivity-only &&
	git init connectivity-only &&
	(
		cd connectivity-only &&
		touch empty &&
		git add empty &&
		test_commit empty &&
		empty=.git/objects/e6/9de29bb2d1d6434b8b29ae775ad8c2e48c5391 &&
		rm -f $empty &&
		echo invalid >$empty &&
		test_must_fail git fsck --strict &&
		git fsck --strict --connectivity-only &&
		tree=$(git rev-parse HEAD:) &&
		suffix=${tree#??} &&
		tree=.git/objects/${tree%$suffix}/$suffix &&
		rm -f $tree &&
		echo invalid >$tree &&
		test_must_fail git fsck --strict --connectivity-only
	)
'

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 $cmt &&
dbedf8bf JN	70	test_when_finished "git update-ref -d refs/heads/bogus" &&
dbedf8bf JN	71
2e770fe4	72	test_must_fail git fsck 2>out &&
dbedf8bf JN	73	cat out &&
dbedf8bf JN	74	grep "$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" &&
122f76f5	80	test_must_fail git fsck 2>out &&
dbedf8bf JN	81	cat out &&
dbedf8bf JN	82	grep "not a commit" out
02a6552c TR	83	'
02a6552c TR	84
122f76f5 JH	85	test_expect_success 'HEAD link pointing at a funny object' '
	86	test_when_finished "mv .git/SAVED_HEAD .git/HEAD" &&
	87	mv .git/HEAD .git/SAVED_HEAD &&
	88	echo 0000000000000000000000000000000000000000 >.git/HEAD &&
	89	# avoid corrupt/broken HEAD from interfering with repo discovery
	90	test_must_fail env GIT_DIR=.git git fsck 2>out &&
	91	cat out &&
	92	grep "detached HEAD points" out
	93	'
	94
	95	test_expect_success 'HEAD link pointing at a funny place' '
	96	test_when_finished "mv .git/SAVED_HEAD .git/HEAD" &&
	97	mv .git/HEAD .git/SAVED_HEAD &&
	98	echo "ref: refs/funny/place" >.git/HEAD &&
	99	# avoid corrupt/broken HEAD from interfering with repo discovery
	100	test_must_fail env GIT_DIR=.git git fsck 2>out &&
	101	cat out &&
	102	grep "HEAD points to something strange" out
	103	'
	104
daae1922 JN	105	test_expect_success 'email without @ is okay' '
	106	git cat-file commit HEAD >basis &&
	107	sed "s/@/AT/" basis >okay &&
	108	new=$(git hash-object -t commit -w --stdin <okay) &&
dbedf8bf	109	test_when_finished "remove_object $new" &&
daae1922	110	git update-ref refs/heads/bogus "$new" &&
dbedf8bf	111	test_when_finished "git update-ref -d refs/heads/bogus" &&
daae1922 JN	112	git fsck 2>out &&
daae1922 JN	113	cat out &&
dbedf8bf	114	! grep "commit $new" out
daae1922	115	'
daae1922	116
daae1922 JN	117	test_expect_success 'email with embedded > is not okay' '
	118	git cat-file commit HEAD >basis &&
	119	sed "s/@[a-z]/&>/" basis >bad-email &&
	120	new=$(git hash-object -t commit -w --stdin <bad-email) &&
dbedf8bf	121	test_when_finished "remove_object $new" &&
daae1922	122	git update-ref refs/heads/bogus "$new" &&
dbedf8bf	123	test_when_finished "git update-ref -d refs/heads/bogus" &&
2e770fe4	124	test_must_fail git fsck 2>out &&
daae1922 JN	125	cat out &&
	126	grep "error in commit $new" out
	127	'
02a6552c	128
53f53cff	129	test_expect_success 'missing < email delimiter is reported nicely' '
e3c98120 DI	130	git cat-file commit HEAD >basis &&
	131	sed "s/<//" basis >bad-email-2 &&
	132	new=$(git hash-object -t commit -w --stdin <bad-email-2) &&
	133	test_when_finished "remove_object $new" &&
	134	git update-ref refs/heads/bogus "$new" &&
	135	test_when_finished "git update-ref -d refs/heads/bogus" &&
2e770fe4	136	test_must_fail git fsck 2>out &&
e3c98120 DI	137	cat out &&
	138	grep "error in commit $new.* - bad name" out
	139	'
	140
53f53cff	141	test_expect_success 'missing email is reported nicely' '
e3c98120 DI	142	git cat-file commit HEAD >basis &&
	143	sed "s/[a-z]* <[^>]*>//" basis >bad-email-3 &&
	144	new=$(git hash-object -t commit -w --stdin <bad-email-3) &&
	145	test_when_finished "remove_object $new" &&
	146	git update-ref refs/heads/bogus "$new" &&
	147	test_when_finished "git update-ref -d refs/heads/bogus" &&
2e770fe4	148	test_must_fail git fsck 2>out &&
e3c98120 DI	149	cat out &&
	150	grep "error in commit $new.* - missing email" out
	151	'
	152
53f53cff	153	test_expect_success '> in name is reported' '
e3c98120 DI	154	git cat-file commit HEAD >basis &&
	155	sed "s/ </> </" basis >bad-email-4 &&
	156	new=$(git hash-object -t commit -w --stdin <bad-email-4) &&
	157	test_when_finished "remove_object $new" &&
	158	git update-ref refs/heads/bogus "$new" &&
	159	test_when_finished "git update-ref -d refs/heads/bogus" &&
2e770fe4	160	test_must_fail git fsck 2>out &&
e3c98120 DI	161	cat out &&
	162	grep "error in commit $new" out
	163	'
	164
d4b8de04 JK	165	# date is 2^64 + 1
	166	test_expect_success 'integer overflow in timestamps is reported' '
	167	git cat-file commit HEAD >basis &&
	168	sed "s/^\\(author .>\\) [0-9]/\\1 18446744073709551617/" \
	169	<basis >bad-timestamp &&
	170	new=$(git hash-object -t commit -w --stdin <bad-timestamp) &&
	171	test_when_finished "remove_object $new" &&
	172	git update-ref refs/heads/bogus "$new" &&
	173	test_when_finished "git update-ref -d refs/heads/bogus" &&
2e770fe4	174	test_must_fail git fsck 2>out &&
d4b8de04 JK	175	cat out &&
	176	grep "error in commit $new.*integer overflow" out
	177	'
	178
2e770fe4 JK	179	test_expect_success 'malformatted tree object' '
	180	test_when_finished "git update-ref -d refs/tags/wrong" &&
	181	test_when_finished "remove_object \$T" &&
	182	T=$(
	183	GIT_INDEX_FILE=test-index &&
	184	export GIT_INDEX_FILE &&
	185	rm -f test-index &&
	186	>x &&
	187	git add x &&
	188	T=$(git write-tree) &&
	189	(
	190	git cat-file tree $T &&
	191	git cat-file tree $T
	192	) \|
	193	git hash-object -w -t tree --stdin
	194	) &&
	195	test_must_fail git fsck 2>out &&
	196	grep "error in tree .*contains duplicate file entries" out
	197	'
	198
4551d035	199	test_expect_success 'tag pointing to nonexistent' '
a48fcd83	200	cat >invalid-tag <<-\EOF &&
dbedf8bf JN	201	object ffffffffffffffffffffffffffffffffffffffff
	202	type commit
	203	tag invalid
	204	tagger T A Gger <tagger@example.com> 1234567890 -0000
	205
	206	This is an invalid tag.
	207	EOF
	208
	209	tag=$(git hash-object -t tag -w --stdin <invalid-tag) &&
	210	test_when_finished "remove_object $tag" &&
	211	echo $tag >.git/refs/tags/invalid &&
	212	test_when_finished "git update-ref -d refs/tags/invalid" &&
4551d035	213	test_must_fail git fsck --tags >out &&
02a6552c	214	cat out &&
dbedf8bf	215	grep "broken link" out
02a6552c TR	216	'
02a6552c TR	217
4551d035	218	test_expect_success 'tag pointing to something else than its type' '
dbedf8bf JN	219	sha=$(echo blob \| git hash-object -w --stdin) &&
	220	test_when_finished "remove_object $sha" &&
	221	cat >wrong-tag <<-EOF &&
	222	object $sha
	223	type commit
	224	tag wrong
	225	tagger T A Gger <tagger@example.com> 1234567890 -0000
	226
	227	This is an invalid tag.
	228	EOF
	229
	230	tag=$(git hash-object -t tag -w --stdin <wrong-tag) &&
	231	test_when_finished "remove_object $tag" &&
	232	echo $tag >.git/refs/tags/wrong &&
	233	test_when_finished "git update-ref -d refs/tags/wrong" &&
9dad83be	234	test_must_fail git fsck --tags
02a6552c TR	235	'
02a6552c TR	236
90e3e5f0 JS	237	test_expect_success 'tag with incorrect tag name & missing tagger' '
	238	sha=$(git rev-parse HEAD) &&
	239	cat >wrong-tag <<-EOF &&
	240	object $sha
	241	type commit
	242	tag wrong name format
	243
	244	This is an invalid tag.
	245	EOF
	246
	247	tag=$(git hash-object -t tag -w --stdin <wrong-tag) &&
	248	test_when_finished "remove_object $tag" &&
	249	echo $tag >.git/refs/tags/wrong &&
	250	test_when_finished "git update-ref -d refs/tags/wrong" &&
	251	git fsck --tags 2>out &&
7add4419 JK	252
7add4419 JK	253	cat >expect <<-EOF &&
71ab8fa8 JS	254	warning in tag $tag: badTagName: invalid '\''tag'\'' name: wrong name format
71ab8fa8 JS	255	warning in tag $tag: missingTaggerEntry: invalid format - expected '\''tagger'\'' line
7add4419 JK	256	EOF
7add4419 JK	257	test_cmp expect out
90e3e5f0 JS	258	'
90e3e5f0 JS	259
b659605d JH	260	test_expect_success 'tag with bad tagger' '
	261	sha=$(git rev-parse HEAD) &&
	262	cat >wrong-tag <<-EOF &&
	263	object $sha
	264	type commit
	265	tag not-quite-wrong
	266	tagger Bad Tagger Name
	267
	268	This is an invalid tag.
	269	EOF
	270
	271	tag=$(git hash-object --literally -t tag -w --stdin <wrong-tag) &&
	272	test_when_finished "remove_object $tag" &&
	273	echo $tag >.git/refs/tags/wrong &&
	274	test_when_finished "git update-ref -d refs/tags/wrong" &&
	275	test_must_fail git fsck --tags 2>out &&
	276	grep "error in tag .*: invalid author/committer" out
	277	'
	278
dbedf8bf JN	279	test_expect_success 'cleaned up' '
	280	git fsck >actual 2>&1 &&
	281	test_cmp empty actual
	282	'
02a6552c	283
cb8da705 CB	284	test_expect_success 'rev-list --verify-objects' '
	285	git rev-list --verify-objects --all >/dev/null 2>out &&
	286	test_cmp empty out
	287	'
	288
	289	test_expect_success 'rev-list --verify-objects with bad sha1' '
	290	sha=$(echo blob \| git hash-object -w --stdin) &&
	291	old=$(echo $sha \| sed "s+^..+&/+") &&
	292	new=$(dirname $old)/ffffffffffffffffffffffffffffffffffffff &&
	293	sha="$(dirname $new)$(basename $new)" &&
	294	mv .git/objects/$old .git/objects/$new &&
	295	test_when_finished "remove_object $sha" &&
	296	git update-index --add --cacheinfo 100644 $sha foo &&
	297	test_when_finished "git read-tree -u --reset HEAD" &&
	298	tree=$(git write-tree) &&
	299	test_when_finished "remove_object $tree" &&
	300	cmt=$(echo bogus \| git commit-tree $tree) &&
	301	test_when_finished "remove_object $cmt" &&
	302	git update-ref refs/heads/bogus $cmt &&
	303	test_when_finished "git update-ref -d refs/heads/bogus" &&
	304
	305	test_might_fail git rev-list --verify-objects refs/heads/bogus >/dev/null 2>out &&
	306	cat out &&
	307	grep -q "error: sha1 mismatch 63ffffffffffffffffffffffffffffffffffffff" out
	308	'
	309
2becf00f JS	310	test_expect_success 'force fsck to ignore double author' '
	311	git cat-file commit HEAD >basis &&
	312	sed "s/^author .*/&,&/" <basis \| tr , \\n >multiple-authors &&
	313	new=$(git hash-object -t commit -w --stdin <multiple-authors) &&
	314	test_when_finished "remove_object $new" &&
	315	git update-ref refs/heads/bogus "$new" &&
	316	test_when_finished "git update-ref -d refs/heads/bogus" &&
	317	test_must_fail git fsck &&
	318	git -c fsck.multipleAuthors=ignore fsck
	319	'
	320
c479d14a JK	321	_bz='\0'
	322	_bz5="$_bz$_bz$_bz$_bz$_bz"
	323	_bz20="$_bz5$_bz5$_bz5$_bz5"
	324
	325	test_expect_success 'fsck notices blob entry pointing to null sha1' '
	326	(git init null-blob &&
	327	cd null-blob &&
	328	sha=$(printf "100644 file$_bz$_bz20" \|
	329	git hash-object -w --stdin -t tree) &&
	330	git fsck 2>out &&
	331	cat out &&
	332	grep "warning.*null sha1" out
	333	)
	334	'
	335
	336	test_expect_success 'fsck notices submodule entry pointing to null sha1' '
	337	(git init null-commit &&
	338	cd null-commit &&
	339	sha=$(printf "160000 submodule$_bz$_bz20" \|
	340	git hash-object -w --stdin -t tree) &&
	341	git fsck 2>out &&
	342	cat out &&
	343	grep "warning.*null sha1" out
	344	)
	345	'
	346
a18fcc9f	347	while read name path pretty; do
450870cb	348	while read mode type; do
a18fcc9f JK	349	: ${pretty:=$path}
a18fcc9f JK	350	test_expect_success "fsck notices $pretty as $type" '
450870cb JK	351	(
	352	git init $name-$type &&
	353	cd $name-$type &&
	354	echo content >file &&
	355	git add file &&
	356	git commit -m base &&
	357	blob=$(git rev-parse :file) &&
	358	tree=$(git rev-parse HEAD^{tree}) &&
	359	value=$(eval "echo \$$type") &&
	360	printf "$mode $type %s\t%s" "$value" "$path" >bad &&
d08c13b9	361	bad_tree=$(git mktree <bad) &&
450870cb JK	362	git fsck 2>out &&
450870cb JK	363	cat out &&
d08c13b9	364	grep "warning.*tree $bad_tree" out
450870cb JK	365	)'
	366	done <<-\EOF
	367	100644 blob
	368	040000 tree
	369	EOF
a18fcc9f	370	done <<-EOF
450870cb JK	371	dot .
	372	dotdot ..
	373	dotgit .git
76e86fc6	374	dotgit-case .GIT
a18fcc9f	375	dotgit-unicode .gI${u200c}T .gI{u200c}T
d08c13b9 JS	376	dotgit-case2 .Git
	377	git-tilde1 git~1
	378	dotgitdot .git.
	379	dot-backslash-case .\\\\.GIT\\\\foobar
	380	dotgit-case-backslash .git\\\\foobar
450870cb	381	EOF
5c17f512	382
6aaf956b JK	383	test_expect_success 'fsck allows .Ňit' '
	384	(
	385	git init not-dotgit &&
	386	cd not-dotgit &&
	387	echo content >file &&
	388	git add file &&
	389	git commit -m base &&
	390	blob=$(git rev-parse :file) &&
	391	printf "100644 blob $blob\t.\\305\\207it" >tree &&
	392	tree=$(git mktree <tree) &&
	393	git fsck 2>err &&
	394	test_line_count = 0 err
	395	)
	396	'
	397
30d1038d JK	398	# create a static test repo which is broken by omitting
	399	# one particular object ($1, which is looked up via rev-parse
	400	# in the new repository).
	401	create_repo_missing () {
	402	rm -rf missing &&
	403	git init missing &&
	404	(
	405	cd missing &&
	406	git commit -m one --allow-empty &&
	407	mkdir subdir &&
	408	echo content >subdir/file &&
	409	git add subdir/file &&
	410	git commit -m two &&
	411	unrelated=$(echo unrelated \| git hash-object --stdin -w) &&
	412	git tag -m foo tag $unrelated &&
	413	sha1=$(git rev-parse --verify "$1") &&
	414	path=$(echo $sha1 \| sed 's\|..\|&/\|') &&
	415	rm .git/objects/$path
	416	)
	417	}
	418
	419	test_expect_success 'fsck notices missing blob' '
	420	create_repo_missing HEAD:subdir/file &&
	421	test_must_fail git -C missing fsck
	422	'
	423
	424	test_expect_success 'fsck notices missing subtree' '
	425	create_repo_missing HEAD:subdir &&
	426	test_must_fail git -C missing fsck
	427	'
	428
	429	test_expect_success 'fsck notices missing root tree' '
	430	create_repo_missing HEAD^{tree} &&
	431	test_must_fail git -C missing fsck
	432	'
	433
	434	test_expect_success 'fsck notices missing parent' '
	435	create_repo_missing HEAD^ &&
	436	test_must_fail git -C missing fsck
	437	'
	438
	439	test_expect_success 'fsck notices missing tagged object' '
	440	create_repo_missing tag^{blob} &&
	441	test_must_fail git -C missing fsck
	442	'
	443
	444	test_expect_success 'fsck notices ref pointing to missing commit' '
	445	create_repo_missing HEAD &&
	446	test_must_fail git -C missing fsck
	447	'
	448
	449	test_expect_success 'fsck notices ref pointing to missing tag' '
	450	create_repo_missing tag &&
	451	test_must_fail git -C missing fsck
	452	'
	453
02976bf8 JS	454	test_expect_success 'fsck --connectivity-only' '
	455	rm -rf connectivity-only &&
	456	git init connectivity-only &&
	457	(
	458	cd connectivity-only &&
	459	touch empty &&
	460	git add empty &&
	461	test_commit empty &&
	462	empty=.git/objects/e6/9de29bb2d1d6434b8b29ae775ad8c2e48c5391 &&
	463	rm -f $empty &&
	464	echo invalid >$empty &&
	465	test_must_fail git fsck --strict &&
	466	git fsck --strict --connectivity-only &&
	467	tree=$(git rev-parse HEAD:) &&
	468	suffix=${tree#??} &&
	469	tree=.git/objects/${tree%$suffix}/$suffix &&
	470	rm -f $tree &&
	471	echo invalid >$tree &&
	472	test_must_fail git fsck --strict --connectivity-only
	473	)
	474	'
	475
469e2ebf	476	test_done