3 # Copyright (c) 2007 Nicolas Pitre
6 test_description='pack index with 64-bit offsets and object CRC'
16 test-genrandom "$i" 8192 >>file_$i &&
17 git-update-index --add file_$i || return 1
19 { echo 101 && test-genrandom 100 8192; } >file_101 &&
20 git-update-index --add file_101 &&
21 tree=`git-write-tree` &&
22 commit=`git-commit-tree $tree </dev/null` && {
24 git-ls-tree $tree | sed -e "s/.* \\([0-9a-f]*\\) .*/\\1/"
26 git-update-ref HEAD $commit'
29 'pack-objects with index version 1' \
30 'pack1=$(git-pack-objects --index-version=1 test-1 <obj-list) &&
31 git-verify-pack -v "test-1-${pack1}.pack"'
34 'pack-objects with index version 2' \
35 'pack2=$(git-pack-objects --index-version=2 test-2 <obj-list) &&
36 git-verify-pack -v "test-2-${pack2}.pack"'
39 'both packs should be identical' \
40 'cmp "test-1-${pack1}.pack" "test-2-${pack2}.pack"'
43 'index v1 and index v2 should be different' \
44 'cmp "test-1-${pack1}.idx" "test-2-${pack2}.idx"'
47 'index-pack with index version 1' \
48 'git-index-pack --index-version=1 -o 1.idx "test-1-${pack1}.pack"'
51 'index-pack with index version 2' \
52 'git-index-pack --index-version=2 -o 2.idx "test-1-${pack1}.pack"'
55 'index-pack results should match pack-objects ones' \
56 'cmp "test-1-${pack1}.idx" "1.idx" &&
57 cmp "test-2-${pack2}.idx" "2.idx"'
60 'index v2: force some 64-bit offsets with pack-objects' \
61 'pack3=$(git-pack-objects --index-version=2,0x40000 test-3 <obj-list) &&
62 git-verify-pack -v "test-3-${pack3}.pack"'
65 '64-bit offsets: should be different from previous index v2 results' \
66 'cmp "test-2-${pack2}.idx" "test-3-${pack3}.idx"'
69 'index v2: force some 64-bit offsets with index-pack' \
70 'git-index-pack --index-version=2,0x40000 -o 3.idx "test-1-${pack1}.pack"'
73 '64-bit offsets: index-pack result should match pack-objects one' \
74 'cmp "test-3-${pack3}.idx" "3.idx"'
77 '[index v1] 1) stream pack to repository' \
78 'git-index-pack --index-version=1 --stdin < "test-1-${pack1}.pack" &&
80 git-count-objects | ( read nr rest && test "$nr" -eq 1 ) &&
81 cmp "test-1-${pack1}.pack" ".git/objects/pack/pack-${pack1}.pack" &&
82 cmp "test-1-${pack1}.idx" ".git/objects/pack/pack-${pack1}.idx"'
85 '[index v1] 2) create a stealth corruption in a delta base reference' \
86 '# this test assumes a delta smaller than 16 bytes at the end of the pack
87 git-show-index <1.idx | sort -n | tail -n 1 | (
88 read delta_offs delta_sha1 &&
89 git-cat-file blob "$delta_sha1" > blob_1 &&
90 chmod +w ".git/objects/pack/pack-${pack1}.pack" &&
91 dd of=".git/objects/pack/pack-${pack1}.pack" seek=$(($delta_offs + 1)) \
92 if=".git/objects/pack/pack-${pack1}.idx" skip=$((256 * 4 + 4)) \
93 bs=1 count=20 conv=notrunc &&
94 git-cat-file blob "$delta_sha1" > blob_2 )'
97 '[index v1] 3) corrupted delta happily returned wrong data' \
100 test_expect_failure \
101 '[index v1] 4) confirm that the pack is actually corrupted' \
102 'git-fsck --full $commit'
104 test_expect_success \
105 '[index v1] 5) pack-objects happily reuses corrupted data' \
106 'pack4=$(git-pack-objects test-4 <obj-list) &&
107 test -f "test-4-${pack1}.pack"'
109 test_expect_failure \
110 '[index v1] 6) newly created pack is BAD !' \
111 'git-verify-pack -v "test-4-${pack1}.pack"'
113 test_expect_success \
114 '[index v2] 1) stream pack to repository' \
115 'rm -f .git/objects/pack/* &&
116 git-index-pack --index-version=2,0x40000 --stdin < "test-1-${pack1}.pack" &&
118 git-count-objects | ( read nr rest && test "$nr" -eq 1 ) &&
119 cmp "test-1-${pack1}.pack" ".git/objects/pack/pack-${pack1}.pack" &&
120 cmp "test-3-${pack1}.idx" ".git/objects/pack/pack-${pack1}.idx"'
122 test_expect_success \
123 '[index v2] 2) create a stealth corruption in a delta base reference' \
124 '# this test assumes a delta smaller than 16 bytes at the end of the pack
125 git-show-index <1.idx | sort -n | tail -n 1 | (
126 read delta_offs delta_sha1 delta_crc &&
127 git-cat-file blob "$delta_sha1" > blob_3 &&
128 chmod +w ".git/objects/pack/pack-${pack1}.pack" &&
129 dd of=".git/objects/pack/pack-${pack1}.pack" seek=$(($delta_offs + 1)) \
130 if=".git/objects/pack/pack-${pack1}.idx" skip=$((8 + 256 * 4)) \
131 bs=1 count=20 conv=notrunc &&
132 git-cat-file blob "$delta_sha1" > blob_4 )'
134 test_expect_failure \
135 '[index v2] 3) corrupted delta happily returned wrong data' \
138 test_expect_failure \
139 '[index v2] 4) confirm that the pack is actually corrupted' \
140 'git-fsck --full $commit'
142 test_expect_failure \
143 '[index v2] 5) pack-objects refuses to reuse corrupted data' \
144 'git-pack-objects test-5 <obj-list'