midx: stop reporting garbage
[git/git.git] / t / t5319-multi-pack-index.sh
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1#!/bin/sh
2
3test_description='multi-pack-indexes'
4. ./test-lib.sh
5
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6objdir=.git/objects
7
4d80560c 8midx_read_expect () {
396f2570 9 NUM_PACKS=$1
d7cacf29 10 NUM_OBJECTS=$2
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11 NUM_CHUNKS=$3
12 OBJECT_DIR=$4
13 EXTRA_CHUNKS="$5"
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14 {
15 cat <<-EOF &&
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16 header: 4d494458 1 $NUM_CHUNKS $NUM_PACKS
17 chunks: pack-names oid-fanout oid-lookup object-offsets$EXTRA_CHUNKS
d7cacf29 18 num_objects: $NUM_OBJECTS
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19 packs:
20 EOF
21 if test $NUM_PACKS -ge 1
22 then
662148c4 23 ls $OBJECT_DIR/pack/ | grep idx | sort
3227565c 24 fi &&
662148c4 25 printf "object-dir: $OBJECT_DIR\n"
3227565c 26 } >expect &&
662148c4 27 test-tool read-midx $OBJECT_DIR >actual &&
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28 test_cmp expect actual
29}
30
a3407730 31test_expect_success 'write midx with no packs' '
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32 test_when_finished rm -f pack/multi-pack-index &&
33 git multi-pack-index --object-dir=. write &&
662148c4 34 midx_read_expect 0 0 4 .
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35'
36
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37generate_objects () {
38 i=$1
39 iii=$(printf '%03i' $i)
40 {
41 test-tool genrandom "bar" 200 &&
42 test-tool genrandom "baz $iii" 50
43 } >wide_delta_$iii &&
44 {
45 test-tool genrandom "foo"$i 100 &&
46 test-tool genrandom "foo"$(( $i + 1 )) 100 &&
47 test-tool genrandom "foo"$(( $i + 2 )) 100
48 } >deep_delta_$iii &&
49 {
50 echo $iii &&
51 test-tool genrandom "$iii" 8192
52 } >file_$iii &&
53 git update-index --add file_$iii deep_delta_$iii wide_delta_$iii
54}
55
56commit_and_list_objects () {
57 {
58 echo 101 &&
59 test-tool genrandom 100 8192;
60 } >file_101 &&
61 git update-index --add file_101 &&
62 tree=$(git write-tree) &&
63 commit=$(git commit-tree $tree -p HEAD</dev/null) &&
64 {
65 echo $tree &&
66 git ls-tree $tree | sed -e "s/.* \\([0-9a-f]*\\) .*/\\1/"
67 } >obj-list &&
68 git reset --hard $commit
69}
70
71test_expect_success 'create objects' '
72 test_commit initial &&
73 for i in $(test_seq 1 5)
74 do
75 generate_objects $i
76 done &&
77 commit_and_list_objects
78'
79
80test_expect_success 'write midx with one v1 pack' '
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81 pack=$(git pack-objects --index-version=1 $objdir/pack/test <obj-list) &&
82 test_when_finished rm $objdir/pack/test-$pack.pack \
83 $objdir/pack/test-$pack.idx $objdir/pack/multi-pack-index &&
84 git multi-pack-index --object-dir=$objdir write &&
85 midx_read_expect 1 18 4 $objdir
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86'
87
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88midx_git_two_modes () {
89 git -c core.multiPackIndex=false $1 >expect &&
90 git -c core.multiPackIndex=true $1 >actual &&
91 test_cmp expect actual
92}
93
94compare_results_with_midx () {
95 MSG=$1
96 test_expect_success "check normal git operations: $MSG" '
97 midx_git_two_modes "rev-list --objects --all" &&
98 midx_git_two_modes "log --raw"
99 '
100}
101
2c381335 102test_expect_success 'write midx with one v2 pack' '
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103 git pack-objects --index-version=2,0x40 $objdir/pack/test <obj-list &&
104 git multi-pack-index --object-dir=$objdir write &&
105 midx_read_expect 1 18 4 $objdir
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106'
107
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108compare_results_with_midx "one v2 pack"
109
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110test_expect_success 'add more objects' '
111 for i in $(test_seq 6 10)
112 do
113 generate_objects $i
114 done &&
115 commit_and_list_objects
116'
117
118test_expect_success 'write midx with two packs' '
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119 git pack-objects --index-version=1 $objdir/pack/test-2 <obj-list &&
120 git multi-pack-index --object-dir=$objdir write &&
121 midx_read_expect 2 34 4 $objdir
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122'
123
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124compare_results_with_midx "two packs"
125
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126test_expect_success 'add more packs' '
127 for j in $(test_seq 11 20)
128 do
129 generate_objects $j &&
130 commit_and_list_objects &&
c4d25228 131 git pack-objects --index-version=2 $objdir/pack/test-pack <obj-list
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132 done
133'
134
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135compare_results_with_midx "mixed mode (two packs + extra)"
136
2c381335 137test_expect_success 'write midx with twelve packs' '
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138 git multi-pack-index --object-dir=$objdir write &&
139 midx_read_expect 12 74 4 $objdir
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140'
141
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142compare_results_with_midx "twelve packs"
143
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144test_expect_success 'repack removes multi-pack-index' '
145 test_path_is_file $objdir/pack/multi-pack-index &&
146 git repack -adf &&
147 test_path_is_missing $objdir/pack/multi-pack-index
148'
149
150compare_results_with_midx "after repack"
151
152
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153# usage: corrupt_data <file> <pos> [<data>]
154corrupt_data () {
155 file=$1
156 pos=$2
157 data="${3:-\0}"
158 printf "$data" | dd of="$file" bs=1 seek="$pos" conv=notrunc
159}
160
161# Force 64-bit offsets by manipulating the idx file.
162# This makes the IDX file _incorrect_ so be careful to clean up after!
163test_expect_success 'force some 64-bit offsets with pack-objects' '
164 mkdir objects64 &&
165 mkdir objects64/pack &&
166 for i in $(test_seq 1 11)
167 do
168 generate_objects 11
169 done &&
170 commit_and_list_objects &&
171 pack64=$(git pack-objects --index-version=2,0x40 objects64/pack/test-64 <obj-list) &&
172 idx64=objects64/pack/test-64-$pack64.idx &&
173 chmod u+w $idx64 &&
174 corrupt_data $idx64 2999 "\02" &&
175 midx64=$(git multi-pack-index --object-dir=objects64 write) &&
176 midx_read_expect 1 63 5 objects64 " large-offsets"
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177'
178
a3407730 179test_done