1 #!/bin/sh
2 #
3 # Copyright (c) 2007 Nicolas Pitre
4 #
6 test_description='pack index with 64-bit offsets and object CRC'
7 . ./test-lib.sh
9 test_expect_success \
10 'setup' \
11 'rm -rf .git
12 git init &&
13 i=1 &&
14 while test $i -le 100
15 do
16 i=`printf '%03i' $i`
17 echo $i >file_$i &&
18 test-genrandom "$i" 8192 >>file_$i &&
19 git update-index --add file_$i &&
20 i=`expr $i + 1` || return 1
21 done &&
22 { echo 101 && test-genrandom 100 8192; } >file_101 &&
23 git update-index --add file_101 &&
24 tree=`git write-tree` &&
25 commit=`git commit-tree $tree </dev/null` && {
26 echo $tree &&
27 git ls-tree $tree | sed -e "s/.* \\([0-9a-f]*\\) .*/\\1/"
28 } >obj-list &&
29 git update-ref HEAD $commit'
31 test_expect_success \
32 'pack-objects with index version 1' \
33 'pack1=$(git pack-objects --index-version=1 test-1 <obj-list) &&
34 git verify-pack -v "test-1-${pack1}.pack"'
36 test_expect_success \
37 'pack-objects with index version 2' \
38 'pack2=$(git pack-objects --index-version=2 test-2 <obj-list) &&
39 git verify-pack -v "test-2-${pack2}.pack"'
41 test_expect_success \
42 'both packs should be identical' \
43 'cmp "test-1-${pack1}.pack" "test-2-${pack2}.pack"'
45 test_expect_success \
46 'index v1 and index v2 should be different' \
47 '! cmp "test-1-${pack1}.idx" "test-2-${pack2}.idx"'
49 test_expect_success \
50 'index-pack with index version 1' \
51 'git index-pack --index-version=1 -o 1.idx "test-1-${pack1}.pack"'
53 test_expect_success \
54 'index-pack with index version 2' \
55 'git index-pack --index-version=2 -o 2.idx "test-1-${pack1}.pack"'
57 test_expect_success \
58 'index-pack results should match pack-objects ones' \
59 'cmp "test-1-${pack1}.idx" "1.idx" &&
60 cmp "test-2-${pack2}.idx" "2.idx"'
62 test_expect_success \
63 'index v2: force some 64-bit offsets with pack-objects' \
64 'pack3=$(git pack-objects --index-version=2,0x40000 test-3 <obj-list)'
66 have_64bits=
67 if msg=$(git verify-pack -v "test-3-${pack3}.pack" 2>&1) ||
68 ! (echo "$msg" | grep "pack too large .* off_t")
69 then
70 have_64bits=t
71 else
72 say "skipping tests concerning 64-bit offsets"
73 fi
75 test "$have_64bits" &&
76 test_expect_success \
77 'index v2: verify a pack with some 64-bit offsets' \
78 'git verify-pack -v "test-3-${pack3}.pack"'
80 test "$have_64bits" &&
81 test_expect_success \
82 '64-bit offsets: should be different from previous index v2 results' \
83 '! cmp "test-2-${pack2}.idx" "test-3-${pack3}.idx"'
85 test "$have_64bits" &&
86 test_expect_success \
87 'index v2: force some 64-bit offsets with index-pack' \
88 'git index-pack --index-version=2,0x40000 -o 3.idx "test-1-${pack1}.pack"'
90 test "$have_64bits" &&
91 test_expect_success \
92 '64-bit offsets: index-pack result should match pack-objects one' \
93 'cmp "test-3-${pack3}.idx" "3.idx"'
95 test_expect_success \
96 '[index v1] 1) stream pack to repository' \
97 'git index-pack --index-version=1 --stdin < "test-1-${pack1}.pack" &&
98 git prune-packed &&
99 git count-objects | ( read nr rest && test "$nr" -eq 1 ) &&
100 cmp "test-1-${pack1}.pack" ".git/objects/pack/pack-${pack1}.pack" &&
101 cmp "test-1-${pack1}.idx" ".git/objects/pack/pack-${pack1}.idx"'
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
106 git show-index <1.idx | sort -n | sed -ne \$p | (
107 read delta_offs delta_sha1 &&
108 git cat-file blob "$delta_sha1" > blob_1 &&
109 chmod +w ".git/objects/pack/pack-${pack1}.pack" &&
110 dd of=".git/objects/pack/pack-${pack1}.pack" seek=$(($delta_offs + 1)) \
111 if=".git/objects/pack/pack-${pack1}.idx" skip=$((256 * 4 + 4)) \
112 bs=1 count=20 conv=notrunc &&
113 git cat-file blob "$delta_sha1" > blob_2 )'
115 test_expect_success \
116 '[index v1] 3) corrupted delta happily returned wrong data' \
117 '! cmp blob_1 blob_2'
119 test_expect_success \
120 '[index v1] 4) confirm that the pack is actually corrupted' \
121 'test_must_fail git fsck --full $commit'
123 test_expect_success \
124 '[index v1] 5) pack-objects happily reuses corrupted data' \
125 'pack4=$(git pack-objects test-4 <obj-list) &&
126 test -f "test-4-${pack1}.pack"'
128 test_expect_success \
129 '[index v1] 6) newly created pack is BAD !' \
130 'test_must_fail git verify-pack -v "test-4-${pack1}.pack"'
132 test_expect_success \
133 '[index v2] 1) stream pack to repository' \
134 'rm -f .git/objects/pack/* &&
135 git index-pack --index-version=2 --stdin < "test-1-${pack1}.pack" &&
136 git prune-packed &&
137 git count-objects | ( read nr rest && test "$nr" -eq 1 ) &&
138 cmp "test-1-${pack1}.pack" ".git/objects/pack/pack-${pack1}.pack" &&
139 cmp "test-2-${pack1}.idx" ".git/objects/pack/pack-${pack1}.idx"'
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
144 git show-index <1.idx | sort -n | sed -ne \$p | (
145 read delta_offs delta_sha1 delta_crc &&
146 git cat-file blob "$delta_sha1" > blob_3 &&
147 chmod +w ".git/objects/pack/pack-${pack1}.pack" &&
148 dd of=".git/objects/pack/pack-${pack1}.pack" seek=$(($delta_offs + 1)) \
149 if=".git/objects/pack/pack-${pack1}.idx" skip=$((8 + 256 * 4)) \
150 bs=1 count=20 conv=notrunc &&
151 git cat-file blob "$delta_sha1" > blob_4 )'
153 test_expect_success \
154 '[index v2] 3) corrupted delta happily returned wrong data' \
155 '! cmp blob_3 blob_4'
157 test_expect_success \
158 '[index v2] 4) confirm that the pack is actually corrupted' \
159 'test_must_fail git fsck --full $commit'
161 test_expect_success \
162 '[index v2] 5) pack-objects refuses to reuse corrupted data' \
163 'test_must_fail git pack-objects test-5 <obj-list &&
164 test_must_fail git pack-objects --no-reuse-object test-6 <obj-list'
166 test_expect_success \
167 '[index v2] 6) verify-pack detects CRC mismatch' \
168 'rm -f .git/objects/pack/* &&
169 git index-pack --index-version=2 --stdin < "test-1-${pack1}.pack" &&
170 git verify-pack ".git/objects/pack/pack-${pack1}.pack" &&
171 chmod +w ".git/objects/pack/pack-${pack1}.idx" &&
172 dd if=/dev/zero of=".git/objects/pack/pack-${pack1}.idx" conv=notrunc \
173 bs=1 count=4 seek=$((8 + 256 * 4 + `wc -l <obj-list` * 20 + 0)) &&
174 ( while read obj
175 do git cat-file -p $obj >/dev/null || exit 1
176 done <obj-list ) &&
177 err=$(test_must_fail git verify-pack \
178 ".git/objects/pack/pack-${pack1}.pack" 2>&1) &&
179 echo "$err" | grep "CRC mismatch"'
181 test_expect_success 'running index-pack in the object store' '
182 rm -f .git/objects/pack/* &&
183 cp test-1-${pack1}.pack .git/objects/pack/pack-${pack1}.pack &&
184 (
185 cd .git/objects/pack
186 git index-pack pack-${pack1}.pack
187 ) &&
188 test -f .git/objects/pack/pack-${pack1}.idx
189 '
191 test_done