[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 -e "print \"a\" x 4096;" > a &&
     perl -e "print \"b\" x 4096;" > b &&
     perl -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)'

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