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6e541776 NP |
1 | #!/bin/sh |
2 | # | |
3 | # Copyright (c) 2007 Nicolas Pitre | |
4 | # | |
5 | ||
6 | test_description='pack index with 64-bit offsets and object CRC' | |
7 | . ./test-lib.sh | |
8 | ||
9 | test_expect_success \ | |
10 | 'setup' \ | |
11 | 'rm -rf .git | |
5be60078 | 12 | git init && |
b3431bc6 SP |
13 | i=1 && |
14 | while test $i -le 100 | |
6e541776 | 15 | do |
b3431bc6 | 16 | i=`printf '%03i' $i` |
6e541776 NP |
17 | echo $i >file_$i && |
18 | test-genrandom "$i" 8192 >>file_$i && | |
5be60078 | 19 | git update-index --add file_$i && |
b3431bc6 | 20 | i=`expr $i + 1` || return 1 |
6e541776 | 21 | done && |
bd4b0aeb | 22 | { echo 101 && test-genrandom 100 8192; } >file_101 && |
5be60078 JH |
23 | git update-index --add file_101 && |
24 | tree=`git write-tree` && | |
25 | commit=`git commit-tree $tree </dev/null` && { | |
6e541776 | 26 | echo $tree && |
5be60078 | 27 | git ls-tree $tree | sed -e "s/.* \\([0-9a-f]*\\) .*/\\1/" |
6e541776 | 28 | } >obj-list && |
5be60078 | 29 | git update-ref HEAD $commit' |
6e541776 NP |
30 | |
31 | test_expect_success \ | |
32 | 'pack-objects with index version 1' \ | |
5be60078 JH |
33 | 'pack1=$(git pack-objects --index-version=1 test-1 <obj-list) && |
34 | git verify-pack -v "test-1-${pack1}.pack"' | |
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35 | |
36 | test_expect_success \ | |
37 | 'pack-objects with index version 2' \ | |
5be60078 JH |
38 | 'pack2=$(git pack-objects --index-version=2 test-2 <obj-list) && |
39 | git verify-pack -v "test-2-${pack2}.pack"' | |
6e541776 NP |
40 | |
41 | test_expect_success \ | |
42 | 'both packs should be identical' \ | |
43 | 'cmp "test-1-${pack1}.pack" "test-2-${pack2}.pack"' | |
44 | ||
45 | test_expect_failure \ | |
46 | 'index v1 and index v2 should be different' \ | |
47 | 'cmp "test-1-${pack1}.idx" "test-2-${pack2}.idx"' | |
48 | ||
49 | test_expect_success \ | |
50 | 'index-pack with index version 1' \ | |
51 | 'git-index-pack --index-version=1 -o 1.idx "test-1-${pack1}.pack"' | |
52 | ||
53 | test_expect_success \ | |
54 | 'index-pack with index version 2' \ | |
55 | 'git-index-pack --index-version=2 -o 2.idx "test-1-${pack1}.pack"' | |
56 | ||
57 | test_expect_success \ | |
58 | 'index-pack results should match pack-objects ones' \ | |
59 | 'cmp "test-1-${pack1}.idx" "1.idx" && | |
60 | cmp "test-2-${pack2}.idx" "2.idx"' | |
61 | ||
62 | test_expect_success \ | |
63 | 'index v2: force some 64-bit offsets with pack-objects' \ | |
8ed2fca4 JS |
64 | 'pack3=$(git pack-objects --index-version=2,0x40000 test-3 <obj-list)' |
65 | ||
66 | have_64bits= | |
67 | if msg=$(git verify-pack -v "test-3-${pack3}.pack" 2>&1) || | |
68 | ! echo "$msg" | grep "pack too large .* off_t" | |
69 | then | |
70 | have_64bits=t | |
71 | else | |
72 | say "skipping tests concerning 64-bit offsets" | |
73 | fi | |
74 | ||
75 | test "$have_64bits" && | |
76 | test_expect_success \ | |
77 | 'index v2: verify a pack with some 64-bit offsets' \ | |
78 | 'git verify-pack -v "test-3-${pack3}.pack"' | |
6e541776 | 79 | |
8ed2fca4 | 80 | test "$have_64bits" && |
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81 | test_expect_failure \ |
82 | '64-bit offsets: should be different from previous index v2 results' \ | |
83 | 'cmp "test-2-${pack2}.idx" "test-3-${pack3}.idx"' | |
84 | ||
8ed2fca4 | 85 | test "$have_64bits" && |
6e541776 NP |
86 | test_expect_success \ |
87 | 'index v2: force some 64-bit offsets with index-pack' \ | |
88 | 'git-index-pack --index-version=2,0x40000 -o 3.idx "test-1-${pack1}.pack"' | |
89 | ||
8ed2fca4 | 90 | test "$have_64bits" && |
6e541776 NP |
91 | test_expect_success \ |
92 | '64-bit offsets: index-pack result should match pack-objects one' \ | |
93 | 'cmp "test-3-${pack3}.idx" "3.idx"' | |
94 | ||
95 | test_expect_success \ | |
96 | '[index v1] 1) stream pack to repository' \ | |
97 | 'git-index-pack --index-version=1 --stdin < "test-1-${pack1}.pack" && | |
5be60078 JH |
98 | git prune-packed && |
99 | git count-objects | ( read nr rest && test "$nr" -eq 1 ) && | |
6e541776 NP |
100 | cmp "test-1-${pack1}.pack" ".git/objects/pack/pack-${pack1}.pack" && |
101 | cmp "test-1-${pack1}.idx" ".git/objects/pack/pack-${pack1}.idx"' | |
102 | ||
103 | test_expect_success \ | |
104 | '[index v1] 2) create a stealth corruption in a delta base reference' \ | |
105 | '# this test assumes a delta smaller than 16 bytes at the end of the pack | |
5be60078 | 106 | git show-index <1.idx | sort -n | tail -n 1 | ( |
6e541776 | 107 | read delta_offs delta_sha1 && |
5be60078 | 108 | git cat-file blob "$delta_sha1" > blob_1 && |
6e541776 NP |
109 | chmod +w ".git/objects/pack/pack-${pack1}.pack" && |
110 | dd of=".git/objects/pack/pack-${pack1}.pack" seek=$(($delta_offs + 1)) \ | |
111 | if=".git/objects/pack/pack-${pack1}.idx" skip=$((256 * 4 + 4)) \ | |
112 | bs=1 count=20 conv=notrunc && | |
5be60078 | 113 | git cat-file blob "$delta_sha1" > blob_2 )' |
6e541776 NP |
114 | |
115 | test_expect_failure \ | |
116 | '[index v1] 3) corrupted delta happily returned wrong data' \ | |
117 | 'cmp blob_1 blob_2' | |
118 | ||
119 | test_expect_failure \ | |
120 | '[index v1] 4) confirm that the pack is actually corrupted' \ | |
5be60078 | 121 | 'git fsck --full $commit' |
6e541776 NP |
122 | |
123 | test_expect_success \ | |
124 | '[index v1] 5) pack-objects happily reuses corrupted data' \ | |
5be60078 | 125 | 'pack4=$(git pack-objects test-4 <obj-list) && |
6e541776 NP |
126 | test -f "test-4-${pack1}.pack"' |
127 | ||
128 | test_expect_failure \ | |
129 | '[index v1] 6) newly created pack is BAD !' \ | |
5be60078 | 130 | 'git verify-pack -v "test-4-${pack1}.pack"' |
6e541776 NP |
131 | |
132 | test_expect_success \ | |
133 | '[index v2] 1) stream pack to repository' \ | |
134 | 'rm -f .git/objects/pack/* && | |
5f9ffff3 | 135 | git-index-pack --index-version=2 --stdin < "test-1-${pack1}.pack" && |
5be60078 JH |
136 | git prune-packed && |
137 | git count-objects | ( read nr rest && test "$nr" -eq 1 ) && | |
6e541776 | 138 | cmp "test-1-${pack1}.pack" ".git/objects/pack/pack-${pack1}.pack" && |
5f9ffff3 | 139 | cmp "test-2-${pack1}.idx" ".git/objects/pack/pack-${pack1}.idx"' |
6e541776 NP |
140 | |
141 | test_expect_success \ | |
142 | '[index v2] 2) create a stealth corruption in a delta base reference' \ | |
143 | '# this test assumes a delta smaller than 16 bytes at the end of the pack | |
5be60078 | 144 | git show-index <1.idx | sort -n | tail -n 1 | ( |
6e541776 | 145 | read delta_offs delta_sha1 delta_crc && |
5be60078 | 146 | git cat-file blob "$delta_sha1" > blob_3 && |
6e541776 NP |
147 | chmod +w ".git/objects/pack/pack-${pack1}.pack" && |
148 | dd of=".git/objects/pack/pack-${pack1}.pack" seek=$(($delta_offs + 1)) \ | |
149 | if=".git/objects/pack/pack-${pack1}.idx" skip=$((8 + 256 * 4)) \ | |
150 | bs=1 count=20 conv=notrunc && | |
5be60078 | 151 | git cat-file blob "$delta_sha1" > blob_4 )' |
6e541776 NP |
152 | |
153 | test_expect_failure \ | |
154 | '[index v2] 3) corrupted delta happily returned wrong data' \ | |
155 | 'cmp blob_3 blob_4' | |
156 | ||
157 | test_expect_failure \ | |
158 | '[index v2] 4) confirm that the pack is actually corrupted' \ | |
5be60078 | 159 | 'git fsck --full $commit' |
6e541776 NP |
160 | |
161 | test_expect_failure \ | |
162 | '[index v2] 5) pack-objects refuses to reuse corrupted data' \ | |
5be60078 | 163 | 'git pack-objects test-5 <obj-list' |
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164 | |
165 | test_done |