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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 && |
1415be8f | 13 | git config pack.threads 1 && |
b3431bc6 | 14 | i=1 && |
2b5c208f | 15 | while test $i -le 100 |
6e541776 | 16 | do |
2b5c208f NP |
17 | iii=`printf '%03i' $i` |
18 | test-genrandom "bar" 200 > wide_delta_$iii && | |
19 | test-genrandom "baz $iii" 50 >> wide_delta_$iii && | |
20 | test-genrandom "foo"$i 100 > deep_delta_$iii && | |
21 | test-genrandom "foo"`expr $i + 1` 100 >> deep_delta_$iii && | |
22 | test-genrandom "foo"`expr $i + 2` 100 >> deep_delta_$iii && | |
23 | echo $iii >file_$iii && | |
24 | test-genrandom "$iii" 8192 >>file_$iii && | |
25 | git update-index --add file_$iii deep_delta_$iii wide_delta_$iii && | |
26 | i=`expr $i + 1` || return 1 | |
6e541776 | 27 | done && |
bd4b0aeb | 28 | { echo 101 && test-genrandom 100 8192; } >file_101 && |
5be60078 JH |
29 | git update-index --add file_101 && |
30 | tree=`git write-tree` && | |
31 | commit=`git commit-tree $tree </dev/null` && { | |
6e541776 | 32 | echo $tree && |
5be60078 | 33 | git ls-tree $tree | sed -e "s/.* \\([0-9a-f]*\\) .*/\\1/" |
6e541776 | 34 | } >obj-list && |
5be60078 | 35 | git update-ref HEAD $commit' |
6e541776 NP |
36 | |
37 | test_expect_success \ | |
38 | 'pack-objects with index version 1' \ | |
5be60078 JH |
39 | 'pack1=$(git pack-objects --index-version=1 test-1 <obj-list) && |
40 | git verify-pack -v "test-1-${pack1}.pack"' | |
6e541776 NP |
41 | |
42 | test_expect_success \ | |
43 | 'pack-objects with index version 2' \ | |
5be60078 JH |
44 | 'pack2=$(git pack-objects --index-version=2 test-2 <obj-list) && |
45 | git verify-pack -v "test-2-${pack2}.pack"' | |
6e541776 NP |
46 | |
47 | test_expect_success \ | |
48 | 'both packs should be identical' \ | |
49 | 'cmp "test-1-${pack1}.pack" "test-2-${pack2}.pack"' | |
50 | ||
41ac414e | 51 | test_expect_success \ |
6e541776 | 52 | 'index v1 and index v2 should be different' \ |
41ac414e | 53 | '! cmp "test-1-${pack1}.idx" "test-2-${pack2}.idx"' |
6e541776 NP |
54 | |
55 | test_expect_success \ | |
56 | 'index-pack with index version 1' \ | |
3604e7c5 | 57 | 'git index-pack --index-version=1 -o 1.idx "test-1-${pack1}.pack"' |
6e541776 NP |
58 | |
59 | test_expect_success \ | |
60 | 'index-pack with index version 2' \ | |
3604e7c5 | 61 | 'git index-pack --index-version=2 -o 2.idx "test-1-${pack1}.pack"' |
6e541776 NP |
62 | |
63 | test_expect_success \ | |
64 | 'index-pack results should match pack-objects ones' \ | |
65 | 'cmp "test-1-${pack1}.idx" "1.idx" && | |
66 | cmp "test-2-${pack2}.idx" "2.idx"' | |
67 | ||
68 | test_expect_success \ | |
69 | 'index v2: force some 64-bit offsets with pack-objects' \ | |
8ed2fca4 JS |
70 | 'pack3=$(git pack-objects --index-version=2,0x40000 test-3 <obj-list)' |
71 | ||
8ed2fca4 | 72 | if msg=$(git verify-pack -v "test-3-${pack3}.pack" 2>&1) || |
bbf08124 | 73 | ! (echo "$msg" | grep "pack too large .* off_t") |
8ed2fca4 | 74 | then |
18bf8798 | 75 | test_set_prereq OFF64_T |
8ed2fca4 | 76 | else |
fadb5156 | 77 | say "# skipping tests concerning 64-bit offsets" |
8ed2fca4 JS |
78 | fi |
79 | ||
18bf8798 | 80 | test_expect_success OFF64_T \ |
8ed2fca4 JS |
81 | 'index v2: verify a pack with some 64-bit offsets' \ |
82 | 'git verify-pack -v "test-3-${pack3}.pack"' | |
6e541776 | 83 | |
18bf8798 | 84 | test_expect_success OFF64_T \ |
6e541776 | 85 | '64-bit offsets: should be different from previous index v2 results' \ |
41ac414e | 86 | '! cmp "test-2-${pack2}.idx" "test-3-${pack3}.idx"' |
6e541776 | 87 | |
18bf8798 | 88 | test_expect_success OFF64_T \ |
6e541776 | 89 | 'index v2: force some 64-bit offsets with index-pack' \ |
3604e7c5 | 90 | 'git index-pack --index-version=2,0x40000 -o 3.idx "test-1-${pack1}.pack"' |
6e541776 | 91 | |
18bf8798 | 92 | test_expect_success OFF64_T \ |
6e541776 NP |
93 | '64-bit offsets: index-pack result should match pack-objects one' \ |
94 | 'cmp "test-3-${pack3}.idx" "3.idx"' | |
95 | ||
2b5c208f NP |
96 | # returns the object number for given object in given pack index |
97 | index_obj_nr() | |
98 | { | |
99 | idx_file=$1 | |
100 | object_sha1=$2 | |
101 | nr=0 | |
102 | git show-index < $idx_file | | |
103 | while read offs sha1 extra | |
104 | do | |
105 | nr=$(($nr + 1)) | |
106 | test "$sha1" = "$object_sha1" || continue | |
107 | echo "$(($nr - 1))" | |
108 | break | |
109 | done | |
110 | } | |
111 | ||
112 | # returns the pack offset for given object as found in given pack index | |
113 | index_obj_offset() | |
114 | { | |
115 | idx_file=$1 | |
116 | object_sha1=$2 | |
117 | git show-index < $idx_file | grep $object_sha1 | | |
118 | ( read offs extra && echo "$offs" ) | |
119 | } | |
120 | ||
6e541776 NP |
121 | test_expect_success \ |
122 | '[index v1] 1) stream pack to repository' \ | |
3604e7c5 | 123 | 'git index-pack --index-version=1 --stdin < "test-1-${pack1}.pack" && |
5be60078 JH |
124 | git prune-packed && |
125 | git count-objects | ( read nr rest && test "$nr" -eq 1 ) && | |
6e541776 NP |
126 | cmp "test-1-${pack1}.pack" ".git/objects/pack/pack-${pack1}.pack" && |
127 | cmp "test-1-${pack1}.idx" ".git/objects/pack/pack-${pack1}.idx"' | |
128 | ||
129 | test_expect_success \ | |
130 | '[index v1] 2) create a stealth corruption in a delta base reference' \ | |
2b5c208f NP |
131 | '# This test assumes file_101 is a delta smaller than 16 bytes. |
132 | # It should be against file_100 but we substitute its base for file_099 | |
133 | sha1_101=`git hash-object file_101` && | |
134 | sha1_099=`git hash-object file_099` && | |
135 | offs_101=`index_obj_offset 1.idx $sha1_101` && | |
136 | nr_099=`index_obj_nr 1.idx $sha1_099` && | |
137 | chmod +w ".git/objects/pack/pack-${pack1}.pack" && | |
138 | dd of=".git/objects/pack/pack-${pack1}.pack" seek=$(($offs_101 + 1)) \ | |
139 | if=".git/objects/pack/pack-${pack1}.idx" \ | |
140 | skip=$((4 + 256 * 4 + $nr_099 * 24)) \ | |
141 | bs=1 count=20 conv=notrunc && | |
142 | git cat-file blob $sha1_101 > file_101_foo1' | |
6e541776 | 143 | |
41ac414e | 144 | test_expect_success \ |
6e541776 | 145 | '[index v1] 3) corrupted delta happily returned wrong data' \ |
2b5c208f | 146 | 'test -f file_101_foo1 && ! cmp file_101 file_101_foo1' |
6e541776 | 147 | |
41ac414e | 148 | test_expect_success \ |
6e541776 | 149 | '[index v1] 4) confirm that the pack is actually corrupted' \ |
d492b31c | 150 | 'test_must_fail git fsck --full $commit' |
6e541776 NP |
151 | |
152 | test_expect_success \ | |
153 | '[index v1] 5) pack-objects happily reuses corrupted data' \ | |
5be60078 | 154 | 'pack4=$(git pack-objects test-4 <obj-list) && |
6e541776 NP |
155 | test -f "test-4-${pack1}.pack"' |
156 | ||
41ac414e | 157 | test_expect_success \ |
6e541776 | 158 | '[index v1] 6) newly created pack is BAD !' \ |
d492b31c | 159 | 'test_must_fail git verify-pack -v "test-4-${pack1}.pack"' |
6e541776 NP |
160 | |
161 | test_expect_success \ | |
162 | '[index v2] 1) stream pack to repository' \ | |
163 | 'rm -f .git/objects/pack/* && | |
3604e7c5 | 164 | git index-pack --index-version=2 --stdin < "test-1-${pack1}.pack" && |
5be60078 JH |
165 | git prune-packed && |
166 | git count-objects | ( read nr rest && test "$nr" -eq 1 ) && | |
6e541776 | 167 | cmp "test-1-${pack1}.pack" ".git/objects/pack/pack-${pack1}.pack" && |
5f9ffff3 | 168 | cmp "test-2-${pack1}.idx" ".git/objects/pack/pack-${pack1}.idx"' |
6e541776 NP |
169 | |
170 | test_expect_success \ | |
171 | '[index v2] 2) create a stealth corruption in a delta base reference' \ | |
2b5c208f NP |
172 | '# This test assumes file_101 is a delta smaller than 16 bytes. |
173 | # It should be against file_100 but we substitute its base for file_099 | |
174 | sha1_101=`git hash-object file_101` && | |
175 | sha1_099=`git hash-object file_099` && | |
176 | offs_101=`index_obj_offset 1.idx $sha1_101` && | |
177 | nr_099=`index_obj_nr 1.idx $sha1_099` && | |
178 | chmod +w ".git/objects/pack/pack-${pack1}.pack" && | |
179 | dd of=".git/objects/pack/pack-${pack1}.pack" seek=$(($offs_101 + 1)) \ | |
180 | if=".git/objects/pack/pack-${pack1}.idx" \ | |
181 | skip=$((8 + 256 * 4 + $nr_099 * 20)) \ | |
182 | bs=1 count=20 conv=notrunc && | |
183 | git cat-file blob $sha1_101 > file_101_foo2' | |
6e541776 | 184 | |
41ac414e | 185 | test_expect_success \ |
6e541776 | 186 | '[index v2] 3) corrupted delta happily returned wrong data' \ |
2b5c208f | 187 | 'test -f file_101_foo2 && ! cmp file_101 file_101_foo2' |
6e541776 | 188 | |
41ac414e | 189 | test_expect_success \ |
6e541776 | 190 | '[index v2] 4) confirm that the pack is actually corrupted' \ |
d492b31c | 191 | 'test_must_fail git fsck --full $commit' |
6e541776 | 192 | |
41ac414e | 193 | test_expect_success \ |
6e541776 | 194 | '[index v2] 5) pack-objects refuses to reuse corrupted data' \ |
0e8189e2 NP |
195 | 'test_must_fail git pack-objects test-5 <obj-list && |
196 | test_must_fail git pack-objects --no-reuse-object test-6 <obj-list' | |
6e541776 | 197 | |
85fe23ed NP |
198 | test_expect_success \ |
199 | '[index v2] 6) verify-pack detects CRC mismatch' \ | |
200 | 'rm -f .git/objects/pack/* && | |
3604e7c5 | 201 | git index-pack --index-version=2 --stdin < "test-1-${pack1}.pack" && |
85fe23ed | 202 | git verify-pack ".git/objects/pack/pack-${pack1}.pack" && |
2b5c208f NP |
203 | obj=`git hash-object file_001` && |
204 | nr=`index_obj_nr ".git/objects/pack/pack-${pack1}.idx" $obj` && | |
85fe23ed | 205 | chmod +w ".git/objects/pack/pack-${pack1}.idx" && |
b689ccf6 | 206 | printf xxxx | dd of=".git/objects/pack/pack-${pack1}.idx" conv=notrunc \ |
2b5c208f | 207 | bs=1 count=4 seek=$((8 + 256 * 4 + `wc -l <obj-list` * 20 + $nr * 4)) && |
85fe23ed NP |
208 | ( while read obj |
209 | do git cat-file -p $obj >/dev/null || exit 1 | |
210 | done <obj-list ) && | |
d492b31c SB |
211 | err=$(test_must_fail git verify-pack \ |
212 | ".git/objects/pack/pack-${pack1}.pack" 2>&1) && | |
85fe23ed NP |
213 | echo "$err" | grep "CRC mismatch"' |
214 | ||
a672ea6a NP |
215 | test_expect_success 'running index-pack in the object store' ' |
216 | rm -f .git/objects/pack/* && | |
217 | cp test-1-${pack1}.pack .git/objects/pack/pack-${pack1}.pack && | |
218 | ( | |
219 | cd .git/objects/pack | |
220 | git index-pack pack-${pack1}.pack | |
221 | ) && | |
222 | test -f .git/objects/pack/pack-${pack1}.idx | |
223 | ' | |
224 | ||
6e541776 | 225 | test_done |