[thirdparty/git.git] / t / t5300-pack-object.sh

#!/bin/sh
#
# Copyright (c) 2005 Junio C Hamano
#

test_description='git pack-object

'
. ./test-lib.sh

TRASH=`pwd`

test_expect_success \
    'setup' \
    'rm -f .git/index* &&
     "$PERL_PATH" -e "print \"a\" x 4096;" > a &&
     "$PERL_PATH" -e "print \"b\" x 4096;" > b &&
     "$PERL_PATH" -e "print \"c\" x 4096;" > c &&
     test-genrandom "seed a" 2097152 > a_big &&
     test-genrandom "seed b" 2097152 > b_big &&
     git update-index --add a a_big b b_big c &&
     cat c >d && echo foo >>d && git update-index --add d &&
     tree=`git write-tree` &&
     commit=`git commit-tree $tree </dev/null` && {
	 echo $tree &&
	 echo $commit &&
	 git ls-tree $tree | sed -e "s/.* \\([0-9a-f]*\\)	.*/\\1/"
     } >obj-list && {
	 git diff-tree --root -p $commit &&
	 while read object
	 do
	    t=`git cat-file -t $object` &&
	    git cat-file $t $object || return 1
	 done <obj-list
     } >expect'

test_expect_success \
    'pack without delta' \
    'packname_1=$(git pack-objects --window=0 test-1 <obj-list)'

test_expect_success \
    'pack-objects with bogus arguments' \
    'test_must_fail git pack-objects --window=0 test-1 blah blah <obj-list'

rm -fr .git2
mkdir .git2

test_expect_success \
    'unpack without delta' \
    "GIT_OBJECT_DIRECTORY=.git2/objects &&
     export GIT_OBJECT_DIRECTORY &&
     git init &&
     git unpack-objects -n <test-1-${packname_1}.pack &&
     git unpack-objects <test-1-${packname_1}.pack"

unset GIT_OBJECT_DIRECTORY
cd "$TRASH/.git2"

test_expect_success \
    'check unpack without delta' \
    '(cd ../.git && find objects -type f -print) |
     while read path
     do
         cmp $path ../.git/$path || {
	     echo $path differs.
	     return 1
	 }
     done'
cd "$TRASH"

test_expect_success \
    'pack with REF_DELTA' \
    'pwd &&
     packname_2=$(git pack-objects test-2 <obj-list)'

rm -fr .git2
mkdir .git2

test_expect_success \
    'unpack with REF_DELTA' \
    'GIT_OBJECT_DIRECTORY=.git2/objects &&
     export GIT_OBJECT_DIRECTORY &&
     git init &&
     git unpack-objects -n <test-2-${packname_2}.pack &&
     git unpack-objects <test-2-${packname_2}.pack'

unset GIT_OBJECT_DIRECTORY
cd "$TRASH/.git2"
test_expect_success \
    'check unpack with REF_DELTA' \
    '(cd ../.git && find objects -type f -print) |
     while read path
     do
         cmp $path ../.git/$path || {
	     echo $path differs.
	     return 1
	 }
     done'
cd "$TRASH"

test_expect_success \
    'pack with OFS_DELTA' \
    'pwd &&
     packname_3=$(git pack-objects --delta-base-offset test-3 <obj-list)'

rm -fr .git2
mkdir .git2

test_expect_success \
    'unpack with OFS_DELTA' \
    'GIT_OBJECT_DIRECTORY=.git2/objects &&
     export GIT_OBJECT_DIRECTORY &&
     git init &&
     git unpack-objects -n <test-3-${packname_3}.pack &&
     git unpack-objects <test-3-${packname_3}.pack'

unset GIT_OBJECT_DIRECTORY
cd "$TRASH/.git2"
test_expect_success \
    'check unpack with OFS_DELTA' \
    '(cd ../.git && find objects -type f -print) |
     while read path
     do
         cmp $path ../.git/$path || {
	     echo $path differs.
	     return 1
	 }
     done'
cd "$TRASH"

test_expect_success 'compare delta flavors' '
	"$PERL_PATH" -e '\''
		defined($_ = -s $_) or die for @ARGV;
		exit 1 if $ARGV[0] <= $ARGV[1];
	'\'' test-2-$packname_2.pack test-3-$packname_3.pack
'

rm -fr .git2
mkdir .git2

test_expect_success \
    'use packed objects' \
    'GIT_OBJECT_DIRECTORY=.git2/objects &&
     export GIT_OBJECT_DIRECTORY &&
     git init &&
     cp test-1-${packname_1}.pack test-1-${packname_1}.idx .git2/objects/pack && {
	 git diff-tree --root -p $commit &&
	 while read object
	 do
	    t=`git cat-file -t $object` &&
	    git cat-file $t $object || return 1
	 done <obj-list
    } >current &&
    test_cmp expect current'

test_expect_success \
    'use packed deltified (REF_DELTA) objects' \
    'GIT_OBJECT_DIRECTORY=.git2/objects &&
     export GIT_OBJECT_DIRECTORY &&
     rm -f .git2/objects/pack/test-* &&
     cp test-2-${packname_2}.pack test-2-${packname_2}.idx .git2/objects/pack && {
	 git diff-tree --root -p $commit &&
	 while read object
	 do
	    t=`git cat-file -t $object` &&
	    git cat-file $t $object || return 1
	 done <obj-list
    } >current &&
    test_cmp expect current'

test_expect_success \
    'use packed deltified (OFS_DELTA) objects' \
    'GIT_OBJECT_DIRECTORY=.git2/objects &&
     export GIT_OBJECT_DIRECTORY &&
     rm -f .git2/objects/pack/test-* &&
     cp test-3-${packname_3}.pack test-3-${packname_3}.idx .git2/objects/pack && {
	 git diff-tree --root -p $commit &&
	 while read object
	 do
	    t=`git cat-file -t $object` &&
	    git cat-file $t $object || return 1
	 done <obj-list
    } >current &&
    test_cmp expect current'

unset GIT_OBJECT_DIRECTORY

test_expect_success 'survive missing objects/pack directory' '
	(
		rm -fr missing-pack &&
		mkdir missing-pack &&
		cd missing-pack &&
		git init &&
		GOP=.git/objects/pack
		rm -fr $GOP &&
		git index-pack --stdin --keep=test <../test-3-${packname_3}.pack &&
		test -f $GOP/pack-${packname_3}.pack &&
		test_cmp $GOP/pack-${packname_3}.pack ../test-3-${packname_3}.pack &&
		test -f $GOP/pack-${packname_3}.idx &&
		test_cmp $GOP/pack-${packname_3}.idx ../test-3-${packname_3}.idx &&
		test -f $GOP/pack-${packname_3}.keep
	)
'

test_expect_success \
    'verify pack' \
    'git verify-pack	test-1-${packname_1}.idx \
			test-2-${packname_2}.idx \
			test-3-${packname_3}.idx'

test_expect_success \
    'verify pack -v' \
    'git verify-pack -v	test-1-${packname_1}.idx \
			test-2-${packname_2}.idx \
			test-3-${packname_3}.idx'

test_expect_success \
    'verify-pack catches mismatched .idx and .pack files' \
    'cat test-1-${packname_1}.idx >test-3.idx &&
     cat test-2-${packname_2}.pack >test-3.pack &&
     if git verify-pack test-3.idx
     then false
     else :;
     fi'

test_expect_success \
    'verify-pack catches a corrupted pack signature' \
    'cat test-1-${packname_1}.pack >test-3.pack &&
     echo | dd of=test-3.pack count=1 bs=1 conv=notrunc seek=2 &&
     if git verify-pack test-3.idx
     then false
     else :;
     fi'

test_expect_success \
    'verify-pack catches a corrupted pack version' \
    'cat test-1-${packname_1}.pack >test-3.pack &&
     echo | dd of=test-3.pack count=1 bs=1 conv=notrunc seek=7 &&
     if git verify-pack test-3.idx
     then false
     else :;
     fi'

test_expect_success \
    'verify-pack catches a corrupted type/size of the 1st packed object data' \
    'cat test-1-${packname_1}.pack >test-3.pack &&
     echo | dd of=test-3.pack count=1 bs=1 conv=notrunc seek=12 &&
     if git verify-pack test-3.idx
     then false
     else :;
     fi'

test_expect_success \
    'verify-pack catches a corrupted sum of the index file itself' \
    'l=`wc -c <test-3.idx` &&
     l=`expr $l - 20` &&
     cat test-1-${packname_1}.pack >test-3.pack &&
     printf "%20s" "" | dd of=test-3.idx count=20 bs=1 conv=notrunc seek=$l &&
     if git verify-pack test-3.pack
     then false
     else :;
     fi'

test_expect_success \
    'build pack index for an existing pack' \
    'cat test-1-${packname_1}.pack >test-3.pack &&
     git index-pack -o tmp.idx test-3.pack &&
     cmp tmp.idx test-1-${packname_1}.idx &&

     git index-pack test-3.pack &&
     cmp test-3.idx test-1-${packname_1}.idx &&

     cat test-2-${packname_2}.pack >test-3.pack &&
     git index-pack -o tmp.idx test-2-${packname_2}.pack &&
     cmp tmp.idx test-2-${packname_2}.idx &&

     git index-pack test-3.pack &&
     cmp test-3.idx test-2-${packname_2}.idx &&

     cat test-3-${packname_3}.pack >test-3.pack &&
     git index-pack -o tmp.idx test-3-${packname_3}.pack &&
     cmp tmp.idx test-3-${packname_3}.idx &&

     git index-pack test-3.pack &&
     cmp test-3.idx test-3-${packname_3}.idx &&

     :'

test_expect_success 'unpacking with --strict' '

	for j in a b c d e f g
	do
		for i in 0 1 2 3 4 5 6 7 8 9
		do
			o=$(echo $j$i | git hash-object -w --stdin) &&
			echo "100644 $o	0 $j$i"
		done
	done >LIST &&
	rm -f .git/index &&
	git update-index --index-info <LIST &&
	LIST=$(git write-tree) &&
	rm -f .git/index &&
	head -n 10 LIST | git update-index --index-info &&
	LI=$(git write-tree) &&
	rm -f .git/index &&
	tail -n 10 LIST | git update-index --index-info &&
	ST=$(git write-tree) &&
	PACK5=$( git rev-list --objects "$LIST" "$LI" "$ST" | \
		git pack-objects test-5 ) &&
	PACK6=$( (
			echo "$LIST"
			echo "$LI"
			echo "$ST"
		 ) | git pack-objects test-6 ) &&
	test_create_repo test-5 &&
	(
		cd test-5 &&
		git unpack-objects --strict <../test-5-$PACK5.pack &&
		git ls-tree -r $LIST &&
		git ls-tree -r $LI &&
		git ls-tree -r $ST
	) &&
	test_create_repo test-6 &&
	(
		# tree-only into empty repo -- many unreachables
		cd test-6 &&
		test_must_fail git unpack-objects --strict <../test-6-$PACK6.pack
	) &&
	(
		# already populated -- no unreachables
		cd test-5 &&
		git unpack-objects --strict <../test-6-$PACK6.pack
	)
'

test_expect_success 'index-pack with --strict' '

	for j in a b c d e f g
	do
		for i in 0 1 2 3 4 5 6 7 8 9
		do
			o=$(echo $j$i | git hash-object -w --stdin) &&
			echo "100644 $o	0 $j$i"
		done
	done >LIST &&
	rm -f .git/index &&
	git update-index --index-info <LIST &&
	LIST=$(git write-tree) &&
	rm -f .git/index &&
	head -n 10 LIST | git update-index --index-info &&
	LI=$(git write-tree) &&
	rm -f .git/index &&
	tail -n 10 LIST | git update-index --index-info &&
	ST=$(git write-tree) &&
	PACK5=$( git rev-list --objects "$LIST" "$LI" "$ST" | \
		git pack-objects test-5 ) &&
	PACK6=$( (
			echo "$LIST"
			echo "$LI"
			echo "$ST"
		 ) | git pack-objects test-6 ) &&
	test_create_repo test-7 &&
	(
		cd test-7 &&
		git index-pack --strict --stdin <../test-5-$PACK5.pack &&
		git ls-tree -r $LIST &&
		git ls-tree -r $LI &&
		git ls-tree -r $ST
	) &&
	test_create_repo test-8 &&
	(
		# tree-only into empty repo -- many unreachables
		cd test-8 &&
		test_must_fail git index-pack --strict --stdin <../test-6-$PACK6.pack
	) &&
	(
		# already populated -- no unreachables
		cd test-7 &&
		git index-pack --strict --stdin <../test-6-$PACK6.pack
	)
'

test_expect_success 'honor pack.packSizeLimit' '
	git config pack.packSizeLimit 3m &&
	packname_10=$(git pack-objects test-10 <obj-list) &&
	test 2 = $(ls test-10-*.pack | wc -l)
'

test_expect_success 'verify resulting packs' '
	git verify-pack test-10-*.pack
'

test_expect_success 'tolerate packsizelimit smaller than biggest object' '
	git config pack.packSizeLimit 1 &&
	packname_11=$(git pack-objects test-11 <obj-list) &&
	test 5 = $(ls test-11-*.pack | wc -l)
'

test_expect_success 'verify resulting packs' '
	git verify-pack test-11-*.pack
'

#
# WARNING!
#
# The following test is destructive.  Please keep the next
# two tests at the end of this file.
#

test_expect_success \
    'fake a SHA1 hash collision' \
    'test -f	.git/objects/c8/2de19312b6c3695c0c18f70709a6c535682a67 &&
     cp -f	.git/objects/9d/235ed07cd19811a6ceb342de82f190e49c9f68 \
		.git/objects/c8/2de19312b6c3695c0c18f70709a6c535682a67'

test_expect_success \
    'make sure index-pack detects the SHA1 collision' \
    'test_must_fail git index-pack -o bad.idx test-3.pack 2>msg &&
     test_i18ngrep "SHA1 COLLISION FOUND" msg'

test_expect_success \
    'make sure index-pack detects the SHA1 collision (large blobs)' \
    'test_must_fail git -c core.bigfilethreshold=1 index-pack -o bad.idx test-3.pack 2>msg &&
     test_i18ngrep "SHA1 COLLISION FOUND" msg'

test_done
Commit	Line	Data
8ee378a0 JH	1	#!/bin/sh
	2	#
	3	# Copyright (c) 2005 Junio C Hamano
	4	#
	5
3604e7c5	6	test_description='git pack-object
8ee378a0 JH	7
	8	'
	9	. ./test-lib.sh
	10
	11	TRASH=`pwd`
	12
	13	test_expect_success \
	14	'setup' \
a48fcd83	15	'rm -f .git/index* &&
7096b648 JH	16	"$PERL_PATH" -e "print \"a\" x 4096;" > a &&
	17	"$PERL_PATH" -e "print \"b\" x 4096;" > b &&
	18	"$PERL_PATH" -e "print \"c\" x 4096;" > c &&
07cf0f24 NP	19	test-genrandom "seed a" 2097152 > a_big &&
	20	test-genrandom "seed b" 2097152 > b_big &&
	21	git update-index --add a a_big b b_big c &&
5be60078 JH	22	cat c >d && echo foo >>d && git update-index --add d &&
	23	tree=`git write-tree` &&
	24	commit=`git commit-tree $tree </dev/null` && {
8ee378a0	25	echo $tree &&
1f688557	26	echo $commit &&
5be60078	27	git ls-tree $tree \| sed -e "s/.* \\([0-9a-f]\\) ./\\1/"
1f688557	28	} >obj-list && {
5be60078	29	git diff-tree --root -p $commit &&
1f688557 JH	30	while read object
1f688557 JH	31	do
5be60078 JH	32	t=`git cat-file -t $object` &&
5be60078 JH	33	git cat-file $t $object \|\| return 1
1f688557 JH	34	done <obj-list
1f688557 JH	35	} >expect'
8ee378a0 JH	36
	37	test_expect_success \
	38	'pack without delta' \
5be60078	39	'packname_1=$(git pack-objects --window=0 test-1 <obj-list)'
8ee378a0	40
3a2ec52e NTND	41	test_expect_success \
	42	'pack-objects with bogus arguments' \
	43	'test_must_fail git pack-objects --window=0 test-1 blah blah <obj-list'
	44
8ee378a0 JH	45	rm -fr .git2
	46	mkdir .git2
	47
	48	test_expect_success \
	49	'unpack without delta' \
a61eea6a	50	"GIT_OBJECT_DIRECTORY=.git2/objects &&
8ee378a0	51	export GIT_OBJECT_DIRECTORY &&
5be60078 JH	52	git init &&
	53	git unpack-objects -n <test-1-${packname_1}.pack &&
	54	git unpack-objects <test-1-${packname_1}.pack"
8ee378a0 JH	55
8ee378a0 JH	56	unset GIT_OBJECT_DIRECTORY
f07a5241	57	cd "$TRASH/.git2"
8ee378a0 JH	58
	59	test_expect_success \
	60	'check unpack without delta' \
	61	'(cd ../.git && find objects -type f -print) \|
	62	while read path
	63	do
	64	cmp $path ../.git/$path \|\| {
	65	echo $path differs.
4d9d62fa	66	return 1
8ee378a0 JH	67	}
8ee378a0 JH	68	done'
f07a5241	69	cd "$TRASH"
8ee378a0 JH	70
8ee378a0 JH	71	test_expect_success \
ac527b0b	72	'pack with REF_DELTA' \
8ee378a0	73	'pwd &&
5be60078	74	packname_2=$(git pack-objects test-2 <obj-list)'
8ee378a0 JH	75
	76	rm -fr .git2
	77	mkdir .git2
	78
	79	test_expect_success \
ac527b0b	80	'unpack with REF_DELTA' \
8ee378a0 JH	81	'GIT_OBJECT_DIRECTORY=.git2/objects &&
8ee378a0 JH	82	export GIT_OBJECT_DIRECTORY &&
5be60078 JH	83	git init &&
	84	git unpack-objects -n <test-2-${packname_2}.pack &&
	85	git unpack-objects <test-2-${packname_2}.pack'
8ee378a0 JH	86
8ee378a0 JH	87	unset GIT_OBJECT_DIRECTORY
f07a5241	88	cd "$TRASH/.git2"
8ee378a0	89	test_expect_success \
ac527b0b	90	'check unpack with REF_DELTA' \
8ee378a0 JH	91	'(cd ../.git && find objects -type f -print) \|
	92	while read path
	93	do
	94	cmp $path ../.git/$path \|\| {
	95	echo $path differs.
4d9d62fa	96	return 1
8ee378a0 JH	97	}
8ee378a0 JH	98	done'
f07a5241	99	cd "$TRASH"
8ee378a0	100
ac527b0b NP	101	test_expect_success \
	102	'pack with OFS_DELTA' \
	103	'pwd &&
5be60078	104	packname_3=$(git pack-objects --delta-base-offset test-3 <obj-list)'
ac527b0b NP	105
	106	rm -fr .git2
	107	mkdir .git2
	108
	109	test_expect_success \
	110	'unpack with OFS_DELTA' \
	111	'GIT_OBJECT_DIRECTORY=.git2/objects &&
	112	export GIT_OBJECT_DIRECTORY &&
5be60078 JH	113	git init &&
	114	git unpack-objects -n <test-3-${packname_3}.pack &&
	115	git unpack-objects <test-3-${packname_3}.pack'
ac527b0b NP	116
	117	unset GIT_OBJECT_DIRECTORY
	118	cd "$TRASH/.git2"
	119	test_expect_success \
	120	'check unpack with OFS_DELTA' \
	121	'(cd ../.git && find objects -type f -print) \|
	122	while read path
	123	do
	124	cmp $path ../.git/$path \|\| {
	125	echo $path differs.
	126	return 1
	127	}
	128	done'
	129	cd "$TRASH"
	130
d93f7c18	131	test_expect_success 'compare delta flavors' '
7096b648	132	"$PERL_PATH" -e '\''
d93f7c18 AL	133	defined($_ = -s $_) or die for @ARGV;
	134	exit 1 if $ARGV[0] <= $ARGV[1];
	135	'\'' test-2-$packname_2.pack test-3-$packname_3.pack
	136	'
ac527b0b	137
1f688557 JH	138	rm -fr .git2
	139	mkdir .git2
	140
	141	test_expect_success \
	142	'use packed objects' \
	143	'GIT_OBJECT_DIRECTORY=.git2/objects &&
	144	export GIT_OBJECT_DIRECTORY &&
5be60078	145	git init &&
a61eea6a	146	cp test-1-${packname_1}.pack test-1-${packname_1}.idx .git2/objects/pack && {
5be60078	147	git diff-tree --root -p $commit &&
1f688557 JH	148	while read object
1f688557 JH	149	do
5be60078 JH	150	t=`git cat-file -t $object` &&
5be60078 JH	151	git cat-file $t $object \|\| return 1
1f688557 JH	152	done <obj-list
1f688557 JH	153	} >current &&
4fdf71be	154	test_cmp expect current'
1f688557	155
1f688557	156	test_expect_success \
ac527b0b	157	'use packed deltified (REF_DELTA) objects' \
1f688557 JH	158	'GIT_OBJECT_DIRECTORY=.git2/objects &&
1f688557 JH	159	export GIT_OBJECT_DIRECTORY &&
a5878961	160	rm -f .git2/objects/pack/test-* &&
a61eea6a	161	cp test-2-${packname_2}.pack test-2-${packname_2}.idx .git2/objects/pack && {
5be60078	162	git diff-tree --root -p $commit &&
1f688557 JH	163	while read object
1f688557 JH	164	do
5be60078 JH	165	t=`git cat-file -t $object` &&
5be60078 JH	166	git cat-file $t $object \|\| return 1
1f688557 JH	167	done <obj-list
1f688557 JH	168	} >current &&
4fdf71be	169	test_cmp expect current'
1f688557	170
ac527b0b NP	171	test_expect_success \
	172	'use packed deltified (OFS_DELTA) objects' \
	173	'GIT_OBJECT_DIRECTORY=.git2/objects &&
	174	export GIT_OBJECT_DIRECTORY &&
a5878961	175	rm -f .git2/objects/pack/test-* &&
ac527b0b	176	cp test-3-${packname_3}.pack test-3-${packname_3}.idx .git2/objects/pack && {
5be60078	177	git diff-tree --root -p $commit &&
ac527b0b NP	178	while read object
ac527b0b NP	179	do
5be60078 JH	180	t=`git cat-file -t $object` &&
5be60078 JH	181	git cat-file $t $object \|\| return 1
ac527b0b NP	182	done <obj-list
ac527b0b NP	183	} >current &&
4fdf71be	184	test_cmp expect current'
ac527b0b	185
f9253394 JH	186	unset GIT_OBJECT_DIRECTORY
f9253394 JH	187
6e180cdc JH	188	test_expect_success 'survive missing objects/pack directory' '
	189	(
	190	rm -fr missing-pack &&
	191	mkdir missing-pack &&
	192	cd missing-pack &&
	193	git init &&
	194	GOP=.git/objects/pack
	195	rm -fr $GOP &&
	196	git index-pack --stdin --keep=test <../test-3-${packname_3}.pack &&
	197	test -f $GOP/pack-${packname_3}.pack &&
	198	test_cmp $GOP/pack-${packname_3}.pack ../test-3-${packname_3}.pack &&
	199	test -f $GOP/pack-${packname_3}.idx &&
	200	test_cmp $GOP/pack-${packname_3}.idx ../test-3-${packname_3}.idx &&
	201	test -f $GOP/pack-${packname_3}.keep
	202	)
	203	'
	204
f9253394 JH	205	test_expect_success \
f9253394 JH	206	'verify pack' \
5be60078	207	'git verify-pack test-1-${packname_1}.idx \
ac527b0b NP	208	test-2-${packname_2}.idx \
ac527b0b NP	209	test-3-${packname_3}.idx'
f9253394	210
4b480c67 NP	211	test_expect_success \
	212	'verify pack -v' \
	213	'git verify-pack -v test-1-${packname_1}.idx \
	214	test-2-${packname_2}.idx \
	215	test-3-${packname_3}.idx'
	216
f9253394	217	test_expect_success \
63405283	218	'verify-pack catches mismatched .idx and .pack files' \
a5878961 JH	219	'cat test-1-${packname_1}.idx >test-3.idx &&
a5878961 JH	220	cat test-2-${packname_2}.pack >test-3.pack &&
5be60078	221	if git verify-pack test-3.idx
f9253394 JH	222	then false
f9253394 JH	223	else :;
63405283	224	fi'
f9253394	225
63405283 JS	226	test_expect_success \
	227	'verify-pack catches a corrupted pack signature' \
	228	'cat test-1-${packname_1}.pack >test-3.pack &&
b689ccf6	229	echo \| dd of=test-3.pack count=1 bs=1 conv=notrunc seek=2 &&
5be60078	230	if git verify-pack test-3.idx
f9253394 JH	231	then false
f9253394 JH	232	else :;
63405283	233	fi'
f9253394	234
63405283 JS	235	test_expect_success \
	236	'verify-pack catches a corrupted pack version' \
	237	'cat test-1-${packname_1}.pack >test-3.pack &&
b689ccf6	238	echo \| dd of=test-3.pack count=1 bs=1 conv=notrunc seek=7 &&
5be60078	239	if git verify-pack test-3.idx
f9253394 JH	240	then false
f9253394 JH	241	else :;
63405283	242	fi'
f9253394	243
63405283 JS	244	test_expect_success \
	245	'verify-pack catches a corrupted type/size of the 1st packed object data' \
	246	'cat test-1-${packname_1}.pack >test-3.pack &&
b689ccf6	247	echo \| dd of=test-3.pack count=1 bs=1 conv=notrunc seek=12 &&
5be60078	248	if git verify-pack test-3.idx
f9253394 JH	249	then false
f9253394 JH	250	else :;
63405283	251	fi'
f9253394	252
63405283 JS	253	test_expect_success \
	254	'verify-pack catches a corrupted sum of the index file itself' \
	255	'l=`wc -c <test-3.idx` &&
8eafa3da	256	l=`expr $l - 20` &&
a5878961	257	cat test-1-${packname_1}.pack >test-3.pack &&
b689ccf6	258	printf "%20s" "" \| dd of=test-3.idx count=20 bs=1 conv=notrunc seek=$l &&
5be60078	259	if git verify-pack test-3.pack
c5ced645 JH	260	then false
c5ced645 JH	261	else :;
63405283	262	fi'
f9253394	263
9cf6d335 SV	264	test_expect_success \
9cf6d335 SV	265	'build pack index for an existing pack' \
a5878961	266	'cat test-1-${packname_1}.pack >test-3.pack &&
3604e7c5	267	git index-pack -o tmp.idx test-3.pack &&
9cf6d335 SV	268	cmp tmp.idx test-1-${packname_1}.idx &&
9cf6d335 SV	269
3604e7c5	270	git index-pack test-3.pack &&
9cf6d335 SV	271	cmp test-3.idx test-1-${packname_1}.idx &&
9cf6d335 SV	272
a5878961	273	cat test-2-${packname_2}.pack >test-3.pack &&
3604e7c5	274	git index-pack -o tmp.idx test-2-${packname_2}.pack &&
9cf6d335 SV	275	cmp tmp.idx test-2-${packname_2}.idx &&
9cf6d335 SV	276
3604e7c5	277	git index-pack test-3.pack &&
9cf6d335 SV	278	cmp test-3.idx test-2-${packname_2}.idx &&
9cf6d335 SV	279
a5878961	280	cat test-3-${packname_3}.pack >test-3.pack &&
3604e7c5	281	git index-pack -o tmp.idx test-3-${packname_3}.pack &&
ac527b0b NP	282	cmp tmp.idx test-3-${packname_3}.idx &&
ac527b0b NP	283
3604e7c5	284	git index-pack test-3.pack &&
ac527b0b NP	285	cmp test-3.idx test-3-${packname_3}.idx &&
ac527b0b NP	286
9cf6d335 SV	287	:'
9cf6d335 SV	288
f2898cfa	289	test_expect_success 'unpacking with --strict' '
c0e809e5	290
c0e809e5 JH	291	for j in a b c d e f g
	292	do
	293	for i in 0 1 2 3 4 5 6 7 8 9
	294	do
	295	o=$(echo $j$i \| git hash-object -w --stdin) &&
	296	echo "100644 $o 0 $j$i"
	297	done
	298	done >LIST &&
	299	rm -f .git/index &&
	300	git update-index --index-info <LIST &&
	301	LIST=$(git write-tree) &&
	302	rm -f .git/index &&
	303	head -n 10 LIST \| git update-index --index-info &&
	304	LI=$(git write-tree) &&
	305	rm -f .git/index &&
	306	tail -n 10 LIST \| git update-index --index-info &&
	307	ST=$(git write-tree) &&
	308	PACK5=$( git rev-list --objects "$LIST" "$LI" "$ST" \| \
	309	git pack-objects test-5 ) &&
	310	PACK6=$( (
	311	echo "$LIST"
	312	echo "$LI"
	313	echo "$ST"
	314	) \| git pack-objects test-6 ) &&
	315	test_create_repo test-5 &&
	316	(
	317	cd test-5 &&
	318	git unpack-objects --strict <../test-5-$PACK5.pack &&
	319	git ls-tree -r $LIST &&
	320	git ls-tree -r $LI &&
	321	git ls-tree -r $ST
	322	) &&
	323	test_create_repo test-6 &&
	324	(
	325	# tree-only into empty repo -- many unreachables
	326	cd test-6 &&
	327	test_must_fail git unpack-objects --strict <../test-6-$PACK6.pack
	328	) &&
	329	(
	330	# already populated -- no unreachables
	331	cd test-5 &&
	332	git unpack-objects --strict <../test-6-$PACK6.pack
	333	)
	334	'
	335
38a5739d MK	336	test_expect_success 'index-pack with --strict' '
	337
	338	for j in a b c d e f g
	339	do
	340	for i in 0 1 2 3 4 5 6 7 8 9
	341	do
	342	o=$(echo $j$i \| git hash-object -w --stdin) &&
	343	echo "100644 $o 0 $j$i"
	344	done
	345	done >LIST &&
	346	rm -f .git/index &&
	347	git update-index --index-info <LIST &&
	348	LIST=$(git write-tree) &&
	349	rm -f .git/index &&
	350	head -n 10 LIST \| git update-index --index-info &&
	351	LI=$(git write-tree) &&
	352	rm -f .git/index &&
	353	tail -n 10 LIST \| git update-index --index-info &&
	354	ST=$(git write-tree) &&
	355	PACK5=$( git rev-list --objects "$LIST" "$LI" "$ST" \| \
	356	git pack-objects test-5 ) &&
	357	PACK6=$( (
	358	echo "$LIST"
	359	echo "$LI"
	360	echo "$ST"
	361	) \| git pack-objects test-6 ) &&
	362	test_create_repo test-7 &&
	363	(
	364	cd test-7 &&
	365	git index-pack --strict --stdin <../test-5-$PACK5.pack &&
	366	git ls-tree -r $LIST &&
	367	git ls-tree -r $LI &&
	368	git ls-tree -r $ST
	369	) &&
	370	test_create_repo test-8 &&
	371	(
	372	# tree-only into empty repo -- many unreachables
	373	cd test-8 &&
	374	test_must_fail git index-pack --strict --stdin <../test-6-$PACK6.pack
	375	) &&
	376	(
	377	# already populated -- no unreachables
	378	cd test-7 &&
	379	git index-pack --strict --stdin <../test-6-$PACK6.pack
	380	)
	381	'
	382
2fca19fb	383	test_expect_success 'honor pack.packSizeLimit' '
07cf0f24	384	git config pack.packSizeLimit 3m &&
2fca19fb	385	packname_10=$(git pack-objects test-10 <obj-list) &&
07cf0f24	386	test 2 = $(ls test-10-*.pack \| wc -l)
2fca19fb NP	387	'
	388
	389	test_expect_success 'verify resulting packs' '
	390	git verify-pack test-10-*.pack
	391	'
	392
07cf0f24 NP	393	test_expect_success 'tolerate packsizelimit smaller than biggest object' '
07cf0f24 NP	394	git config pack.packSizeLimit 1 &&
2fca19fb	395	packname_11=$(git pack-objects test-11 <obj-list) &&
720c9f7b	396	test 5 = $(ls test-11-*.pack \| wc -l)
a1e4760f NP	397	'
a1e4760f NP	398
2fca19fb NP	399	test_expect_success 'verify resulting packs' '
	400	git verify-pack test-11-*.pack
	401	'
	402
	403	#
	404	# WARNING!
	405	#
	406	# The following test is destructive. Please keep the next
	407	# two tests at the end of this file.
	408	#
	409
	410	test_expect_success \
	411	'fake a SHA1 hash collision' \
	412	'test -f .git/objects/c8/2de19312b6c3695c0c18f70709a6c535682a67 &&
	413	cp -f .git/objects/9d/235ed07cd19811a6ceb342de82f190e49c9f68 \
	414	.git/objects/c8/2de19312b6c3695c0c18f70709a6c535682a67'
	415
	416	test_expect_success \
	417	'make sure index-pack detects the SHA1 collision' \
	418	'test_must_fail git index-pack -o bad.idx test-3.pack 2>msg &&
9aa98efc	419	test_i18ngrep "SHA1 COLLISION FOUND" msg'
2fca19fb	420
4614043c NTND	421	test_expect_success \
	422	'make sure index-pack detects the SHA1 collision (large blobs)' \
	423	'test_must_fail git -c core.bigfilethreshold=1 index-pack -o bad.idx test-3.pack 2>msg &&
9aa98efc	424	test_i18ngrep "SHA1 COLLISION FOUND" msg'
4614043c	425
8ee378a0	426	test_done