multi-pack-index: verify missing pack
[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
c4d25228 88midx_git_two_modes () {
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89 if [ "$2" = "sorted" ]
90 then
91 git -c core.multiPackIndex=false $1 | sort >expect &&
92 git -c core.multiPackIndex=true $1 | sort >actual
93 else
94 git -c core.multiPackIndex=false $1 >expect &&
95 git -c core.multiPackIndex=true $1 >actual
96 fi &&
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97 test_cmp expect actual
98}
99
100compare_results_with_midx () {
101 MSG=$1
102 test_expect_success "check normal git operations: $MSG" '
103 midx_git_two_modes "rev-list --objects --all" &&
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104 midx_git_two_modes "log --raw" &&
105 midx_git_two_modes "count-objects --verbose" &&
106 midx_git_two_modes "cat-file --batch-all-objects --buffer --batch-check" &&
107 midx_git_two_modes "cat-file --batch-all-objects --buffer --batch-check --unsorted" sorted
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108 '
109}
110
2c381335 111test_expect_success 'write midx with one v2 pack' '
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112 git pack-objects --index-version=2,0x40 $objdir/pack/test <obj-list &&
113 git multi-pack-index --object-dir=$objdir write &&
114 midx_read_expect 1 18 4 $objdir
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115'
116
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117compare_results_with_midx "one v2 pack"
118
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119test_expect_success 'add more objects' '
120 for i in $(test_seq 6 10)
121 do
122 generate_objects $i
123 done &&
124 commit_and_list_objects
125'
126
127test_expect_success 'write midx with two packs' '
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128 git pack-objects --index-version=1 $objdir/pack/test-2 <obj-list &&
129 git multi-pack-index --object-dir=$objdir write &&
130 midx_read_expect 2 34 4 $objdir
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131'
132
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133compare_results_with_midx "two packs"
134
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135test_expect_success 'add more packs' '
136 for j in $(test_seq 11 20)
137 do
138 generate_objects $j &&
139 commit_and_list_objects &&
c4d25228 140 git pack-objects --index-version=2 $objdir/pack/test-pack <obj-list
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141 done
142'
143
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144compare_results_with_midx "mixed mode (two packs + extra)"
145
2c381335 146test_expect_success 'write midx with twelve packs' '
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147 git multi-pack-index --object-dir=$objdir write &&
148 midx_read_expect 12 74 4 $objdir
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149'
150
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151compare_results_with_midx "twelve packs"
152
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153test_expect_success 'verify multi-pack-index success' '
154 git multi-pack-index verify --object-dir=$objdir
155'
156
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157# usage: corrupt_midx_and_verify <pos> <data> <objdir> <string>
158corrupt_midx_and_verify() {
159 POS=$1 &&
160 DATA="${2:-\0}" &&
161 OBJDIR=$3 &&
162 GREPSTR="$4" &&
163 FILE=$OBJDIR/pack/multi-pack-index &&
164 chmod a+w $FILE &&
165 test_when_finished mv midx-backup $FILE &&
166 cp $FILE midx-backup &&
167 printf "$DATA" | dd of="$FILE" bs=1 seek="$POS" conv=notrunc &&
168 test_must_fail git multi-pack-index verify --object-dir=$OBJDIR 2>test_err &&
169 grep -v "^+" test_err >err &&
170 test_i18ngrep "$GREPSTR" err
171}
172
173test_expect_success 'verify bad signature' '
174 corrupt_midx_and_verify 0 "\00" $objdir \
175 "multi-pack-index signature"
176'
177
178MIDX_BYTE_VERSION=4
179MIDX_BYTE_OID_VERSION=5
180MIDX_BYTE_CHUNK_COUNT=6
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181MIDX_HEADER_SIZE=12
182MIDX_BYTE_CHUNK_ID=$MIDX_HEADER_SIZE
183MIDX_BYTE_CHUNK_OFFSET=$(($MIDX_HEADER_SIZE + 4))
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184MIDX_NUM_CHUNKS=5
185MIDX_CHUNK_LOOKUP_WIDTH=12
186MIDX_OFFSET_PACKNAMES=$(($MIDX_HEADER_SIZE + \
187 $MIDX_NUM_CHUNKS * $MIDX_CHUNK_LOOKUP_WIDTH))
188MIDX_BYTE_PACKNAME_ORDER=$(($MIDX_OFFSET_PACKNAMES + 2))
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189
190test_expect_success 'verify bad version' '
191 corrupt_midx_and_verify $MIDX_BYTE_VERSION "\00" $objdir \
192 "multi-pack-index version"
193'
194
195test_expect_success 'verify bad OID version' '
196 corrupt_midx_and_verify $MIDX_BYTE_OID_VERSION "\02" $objdir \
197 "hash version"
198'
199
200test_expect_success 'verify truncated chunk count' '
201 corrupt_midx_and_verify $MIDX_BYTE_CHUNK_COUNT "\01" $objdir \
202 "missing required"
203'
204
205test_expect_success 'verify extended chunk count' '
206 corrupt_midx_and_verify $MIDX_BYTE_CHUNK_COUNT "\07" $objdir \
207 "terminating multi-pack-index chunk id appears earlier than expected"
208'
209
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210test_expect_success 'verify missing required chunk' '
211 corrupt_midx_and_verify $MIDX_BYTE_CHUNK_ID "\01" $objdir \
212 "missing required"
213'
214
215test_expect_success 'verify invalid chunk offset' '
216 corrupt_midx_and_verify $MIDX_BYTE_CHUNK_OFFSET "\01" $objdir \
217 "invalid chunk offset (too large)"
218'
219
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220test_expect_success 'verify packnames out of order' '
221 corrupt_midx_and_verify $MIDX_BYTE_PACKNAME_ORDER "z" $objdir \
222 "pack names out of order"
223'
224
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225test_expect_success 'verify packnames out of order' '
226 corrupt_midx_and_verify $MIDX_BYTE_PACKNAME_ORDER "a" $objdir \
227 "failed to load pack"
228'
229
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230test_expect_success 'repack removes multi-pack-index' '
231 test_path_is_file $objdir/pack/multi-pack-index &&
232 git repack -adf &&
233 test_path_is_missing $objdir/pack/multi-pack-index
234'
235
236compare_results_with_midx "after repack"
237
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238test_expect_success 'multi-pack-index and pack-bitmap' '
239 git -c repack.writeBitmaps=true repack -ad &&
240 git multi-pack-index write &&
241 git rev-list --test-bitmap HEAD
242'
243
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244test_expect_success 'multi-pack-index and alternates' '
245 git init --bare alt.git &&
246 echo $(pwd)/alt.git/objects >.git/objects/info/alternates &&
247 echo content1 >file1 &&
248 altblob=$(GIT_DIR=alt.git git hash-object -w file1) &&
249 git cat-file blob $altblob &&
250 git rev-list --all
251'
252
253compare_results_with_midx "with alternate (local midx)"
254
255test_expect_success 'multi-pack-index in an alternate' '
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256 mv .git/objects/pack/* alt.git/objects/pack &&
257 test_commit add_local_objects &&
258 git repack --local &&
259 git multi-pack-index write &&
260 midx_read_expect 1 3 4 $objdir &&
261 git reset --hard HEAD~1 &&
262 rm -f .git/objects/pack/*
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263'
264
265compare_results_with_midx "with alternate (remote midx)"
266
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267# usage: corrupt_data <file> <pos> [<data>]
268corrupt_data () {
269 file=$1
270 pos=$2
271 data="${3:-\0}"
272 printf "$data" | dd of="$file" bs=1 seek="$pos" conv=notrunc
273}
274
275# Force 64-bit offsets by manipulating the idx file.
276# This makes the IDX file _incorrect_ so be careful to clean up after!
277test_expect_success 'force some 64-bit offsets with pack-objects' '
278 mkdir objects64 &&
279 mkdir objects64/pack &&
280 for i in $(test_seq 1 11)
281 do
282 generate_objects 11
283 done &&
284 commit_and_list_objects &&
285 pack64=$(git pack-objects --index-version=2,0x40 objects64/pack/test-64 <obj-list) &&
286 idx64=objects64/pack/test-64-$pack64.idx &&
287 chmod u+w $idx64 &&
288 corrupt_data $idx64 2999 "\02" &&
289 midx64=$(git multi-pack-index --object-dir=objects64 write) &&
290 midx_read_expect 1 63 5 objects64 " large-offsets"
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291'
292
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293test_expect_success 'verify multi-pack-index with 64-bit offsets' '
294 git multi-pack-index verify --object-dir=objects64
295'
296
a3407730 297test_done