blob: 67b9a7b84a6a411d44b6b5f90f7b33d6160b5702 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
|
#!/bin/sh
#
# Copyright (c) 2007 Nicolas Pitre
#
test_description='pack index with 64-bit offsets and object CRC'
. ./test-lib.sh
test_expect_success \
'setup' \
'rm -rf .git
git init &&
i=1 &&
while test $i -le 100
do
i=`printf '%03i' $i`
echo $i >file_$i &&
test-genrandom "$i" 8192 >>file_$i &&
git update-index --add file_$i &&
i=`expr $i + 1` || return 1
done &&
{ echo 101 && test-genrandom 100 8192; } >file_101 &&
git update-index --add file_101 &&
tree=`git write-tree` &&
commit=`git commit-tree $tree </dev/null` && {
echo $tree &&
git ls-tree $tree | sed -e "s/.* \\([0-9a-f]*\\) .*/\\1/"
} >obj-list &&
git update-ref HEAD $commit'
test_expect_success \
'pack-objects with index version 1' \
'pack1=$(git pack-objects --index-version=1 test-1 <obj-list) &&
git verify-pack -v "test-1-${pack1}.pack"'
test_expect_success \
'pack-objects with index version 2' \
'pack2=$(git pack-objects --index-version=2 test-2 <obj-list) &&
git verify-pack -v "test-2-${pack2}.pack"'
test_expect_success \
'both packs should be identical' \
'cmp "test-1-${pack1}.pack" "test-2-${pack2}.pack"'
test_expect_success \
'index v1 and index v2 should be different' \
'! cmp "test-1-${pack1}.idx" "test-2-${pack2}.idx"'
test_expect_success \
'index-pack with index version 1' \
'git-index-pack --index-version=1 -o 1.idx "test-1-${pack1}.pack"'
test_expect_success \
'index-pack with index version 2' \
'git-index-pack --index-version=2 -o 2.idx "test-1-${pack1}.pack"'
test_expect_success \
'index-pack results should match pack-objects ones' \
'cmp "test-1-${pack1}.idx" "1.idx" &&
cmp "test-2-${pack2}.idx" "2.idx"'
test_expect_success \
'index v2: force some 64-bit offsets with pack-objects' \
'pack3=$(git pack-objects --index-version=2,0x40000 test-3 <obj-list)'
have_64bits=
if msg=$(git verify-pack -v "test-3-${pack3}.pack" 2>&1) ||
! echo "$msg" | grep "pack too large .* off_t"
then
have_64bits=t
else
say "skipping tests concerning 64-bit offsets"
fi
test "$have_64bits" &&
test_expect_success \
'index v2: verify a pack with some 64-bit offsets' \
'git verify-pack -v "test-3-${pack3}.pack"'
test "$have_64bits" &&
test_expect_success \
'64-bit offsets: should be different from previous index v2 results' \
'! cmp "test-2-${pack2}.idx" "test-3-${pack3}.idx"'
test "$have_64bits" &&
test_expect_success \
'index v2: force some 64-bit offsets with index-pack' \
'git-index-pack --index-version=2,0x40000 -o 3.idx "test-1-${pack1}.pack"'
test "$have_64bits" &&
test_expect_success \
'64-bit offsets: index-pack result should match pack-objects one' \
'cmp "test-3-${pack3}.idx" "3.idx"'
test_expect_success \
'[index v1] 1) stream pack to repository' \
'git-index-pack --index-version=1 --stdin < "test-1-${pack1}.pack" &&
git prune-packed &&
git count-objects | ( read nr rest && test "$nr" -eq 1 ) &&
cmp "test-1-${pack1}.pack" ".git/objects/pack/pack-${pack1}.pack" &&
cmp "test-1-${pack1}.idx" ".git/objects/pack/pack-${pack1}.idx"'
test_expect_success \
'[index v1] 2) create a stealth corruption in a delta base reference' \
'# this test assumes a delta smaller than 16 bytes at the end of the pack
git show-index <1.idx | sort -n | tail -n 1 | (
read delta_offs delta_sha1 &&
git cat-file blob "$delta_sha1" > blob_1 &&
chmod +w ".git/objects/pack/pack-${pack1}.pack" &&
dd of=".git/objects/pack/pack-${pack1}.pack" seek=$(($delta_offs + 1)) \
if=".git/objects/pack/pack-${pack1}.idx" skip=$((256 * 4 + 4)) \
bs=1 count=20 conv=notrunc &&
git cat-file blob "$delta_sha1" > blob_2 )'
test_expect_success \
'[index v1] 3) corrupted delta happily returned wrong data' \
'! cmp blob_1 blob_2'
test_expect_success \
'[index v1] 4) confirm that the pack is actually corrupted' \
'! git fsck --full $commit'
test_expect_success \
'[index v1] 5) pack-objects happily reuses corrupted data' \
'pack4=$(git pack-objects test-4 <obj-list) &&
test -f "test-4-${pack1}.pack"'
test_expect_success \
'[index v1] 6) newly created pack is BAD !' \
'! git verify-pack -v "test-4-${pack1}.pack"'
test_expect_success \
'[index v2] 1) stream pack to repository' \
'rm -f .git/objects/pack/* &&
git-index-pack --index-version=2 --stdin < "test-1-${pack1}.pack" &&
git prune-packed &&
git count-objects | ( read nr rest && test "$nr" -eq 1 ) &&
cmp "test-1-${pack1}.pack" ".git/objects/pack/pack-${pack1}.pack" &&
cmp "test-2-${pack1}.idx" ".git/objects/pack/pack-${pack1}.idx"'
test_expect_success \
'[index v2] 2) create a stealth corruption in a delta base reference' \
'# this test assumes a delta smaller than 16 bytes at the end of the pack
git show-index <1.idx | sort -n | tail -n 1 | (
read delta_offs delta_sha1 delta_crc &&
git cat-file blob "$delta_sha1" > blob_3 &&
chmod +w ".git/objects/pack/pack-${pack1}.pack" &&
dd of=".git/objects/pack/pack-${pack1}.pack" seek=$(($delta_offs + 1)) \
if=".git/objects/pack/pack-${pack1}.idx" skip=$((8 + 256 * 4)) \
bs=1 count=20 conv=notrunc &&
git cat-file blob "$delta_sha1" > blob_4 )'
test_expect_success \
'[index v2] 3) corrupted delta happily returned wrong data' \
'! cmp blob_3 blob_4'
test_expect_success \
'[index v2] 4) confirm that the pack is actually corrupted' \
'! git fsck --full $commit'
test_expect_success \
'[index v2] 5) pack-objects refuses to reuse corrupted data' \
'! git pack-objects test-5 <obj-list'
test_done
|
