midx: write object offsets
[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
4d80560c 6midx_read_expect () {
396f2570 7 NUM_PACKS=$1
d7cacf29 8 NUM_OBJECTS=$2
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9 NUM_CHUNKS=$3
10 OBJECT_DIR=$4
11 EXTRA_CHUNKS="$5"
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12 {
13 cat <<-EOF &&
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14 header: 4d494458 1 $NUM_CHUNKS $NUM_PACKS
15 chunks: pack-names oid-fanout oid-lookup object-offsets$EXTRA_CHUNKS
d7cacf29 16 num_objects: $NUM_OBJECTS
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17 packs:
18 EOF
19 if test $NUM_PACKS -ge 1
20 then
662148c4 21 ls $OBJECT_DIR/pack/ | grep idx | sort
3227565c 22 fi &&
662148c4 23 printf "object-dir: $OBJECT_DIR\n"
3227565c 24 } >expect &&
662148c4 25 test-tool read-midx $OBJECT_DIR >actual &&
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26 test_cmp expect actual
27}
28
a3407730 29test_expect_success 'write midx with no packs' '
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30 test_when_finished rm -f pack/multi-pack-index &&
31 git multi-pack-index --object-dir=. write &&
662148c4 32 midx_read_expect 0 0 4 .
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33'
34
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35generate_objects () {
36 i=$1
37 iii=$(printf '%03i' $i)
38 {
39 test-tool genrandom "bar" 200 &&
40 test-tool genrandom "baz $iii" 50
41 } >wide_delta_$iii &&
42 {
43 test-tool genrandom "foo"$i 100 &&
44 test-tool genrandom "foo"$(( $i + 1 )) 100 &&
45 test-tool genrandom "foo"$(( $i + 2 )) 100
46 } >deep_delta_$iii &&
47 {
48 echo $iii &&
49 test-tool genrandom "$iii" 8192
50 } >file_$iii &&
51 git update-index --add file_$iii deep_delta_$iii wide_delta_$iii
52}
53
54commit_and_list_objects () {
55 {
56 echo 101 &&
57 test-tool genrandom 100 8192;
58 } >file_101 &&
59 git update-index --add file_101 &&
60 tree=$(git write-tree) &&
61 commit=$(git commit-tree $tree -p HEAD</dev/null) &&
62 {
63 echo $tree &&
64 git ls-tree $tree | sed -e "s/.* \\([0-9a-f]*\\) .*/\\1/"
65 } >obj-list &&
66 git reset --hard $commit
67}
68
69test_expect_success 'create objects' '
70 test_commit initial &&
71 for i in $(test_seq 1 5)
72 do
73 generate_objects $i
74 done &&
75 commit_and_list_objects
76'
77
78test_expect_success 'write midx with one v1 pack' '
79 pack=$(git pack-objects --index-version=1 pack/test <obj-list) &&
80 test_when_finished rm pack/test-$pack.pack pack/test-$pack.idx pack/multi-pack-index &&
81 git multi-pack-index --object-dir=. write &&
662148c4 82 midx_read_expect 1 18 4 .
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83'
84
85test_expect_success 'write midx with one v2 pack' '
86 git pack-objects --index-version=2,0x40 pack/test <obj-list &&
87 git multi-pack-index --object-dir=. write &&
662148c4 88 midx_read_expect 1 18 4 .
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89'
90
91test_expect_success 'add more objects' '
92 for i in $(test_seq 6 10)
93 do
94 generate_objects $i
95 done &&
96 commit_and_list_objects
97'
98
99test_expect_success 'write midx with two packs' '
100 git pack-objects --index-version=1 pack/test-2 <obj-list &&
101 git multi-pack-index --object-dir=. write &&
662148c4 102 midx_read_expect 2 34 4 .
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103'
104
105test_expect_success 'add more packs' '
106 for j in $(test_seq 11 20)
107 do
108 generate_objects $j &&
109 commit_and_list_objects &&
396f2570 110 git pack-objects --index-version=2 pack/test-pack <obj-list
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111 done
112'
113
114test_expect_success 'write midx with twelve packs' '
115 git multi-pack-index --object-dir=. write &&
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116 midx_read_expect 12 74 4 .
117'
118
119# usage: corrupt_data <file> <pos> [<data>]
120corrupt_data () {
121 file=$1
122 pos=$2
123 data="${3:-\0}"
124 printf "$data" | dd of="$file" bs=1 seek="$pos" conv=notrunc
125}
126
127# Force 64-bit offsets by manipulating the idx file.
128# This makes the IDX file _incorrect_ so be careful to clean up after!
129test_expect_success 'force some 64-bit offsets with pack-objects' '
130 mkdir objects64 &&
131 mkdir objects64/pack &&
132 for i in $(test_seq 1 11)
133 do
134 generate_objects 11
135 done &&
136 commit_and_list_objects &&
137 pack64=$(git pack-objects --index-version=2,0x40 objects64/pack/test-64 <obj-list) &&
138 idx64=objects64/pack/test-64-$pack64.idx &&
139 chmod u+w $idx64 &&
140 corrupt_data $idx64 2999 "\02" &&
141 midx64=$(git multi-pack-index --object-dir=objects64 write) &&
142 midx_read_expect 1 63 5 objects64 " large-offsets"
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143'
144
a3407730 145test_done