midx: refactor permutation logic and pack sorting
[git/git.git] / t / t5319-multi-pack-index.sh
CommitLineData
a3407730
DS
1#!/bin/sh
2
3test_description='multi-pack-indexes'
4. ./test-lib.sh
5
c4d25228
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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 git -c core.multiPackIndex=false $1 >expect &&
90 git -c core.multiPackIndex=true $1 >actual &&
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91 if [ "$2" = "sorted" ]
92 then
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93 sort <expect >expect.sorted &&
94 mv expect.sorted expect &&
95 sort <actual >actual.sorted &&
96 mv actual.sorted actual
e9ab2ed7 97 fi &&
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98 test_cmp expect actual
99}
100
101compare_results_with_midx () {
102 MSG=$1
103 test_expect_success "check normal git operations: $MSG" '
104 midx_git_two_modes "rev-list --objects --all" &&
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105 midx_git_two_modes "log --raw" &&
106 midx_git_two_modes "count-objects --verbose" &&
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107 midx_git_two_modes "cat-file --batch-all-objects --batch-check" &&
108 midx_git_two_modes "cat-file --batch-all-objects --batch-check --unordered" sorted
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109 '
110}
111
2c381335 112test_expect_success 'write midx with one v2 pack' '
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113 git pack-objects --index-version=2,0x40 $objdir/pack/test <obj-list &&
114 git multi-pack-index --object-dir=$objdir write &&
115 midx_read_expect 1 18 4 $objdir
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116'
117
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118compare_results_with_midx "one v2 pack"
119
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120test_expect_success 'corrupt idx not opened' '
121 idx=$(test-tool read-midx $objdir | grep "\.idx\$") &&
122 mv $objdir/pack/$idx backup-$idx &&
123 test_when_finished "mv backup-\$idx \$objdir/pack/\$idx" &&
124
125 # This is the minimum size for a sha-1 based .idx; this lets
126 # us pass perfunctory tests, but anything that actually opens and reads
127 # the idx file will complain.
128 test_copy_bytes 1064 <backup-$idx >$objdir/pack/$idx &&
129
130 git -c core.multiPackIndex=true rev-list --objects --all 2>err &&
131 test_must_be_empty err
132'
133
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134test_expect_success 'add more objects' '
135 for i in $(test_seq 6 10)
136 do
137 generate_objects $i
138 done &&
139 commit_and_list_objects
140'
141
142test_expect_success 'write midx with two packs' '
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143 git pack-objects --index-version=1 $objdir/pack/test-2 <obj-list &&
144 git multi-pack-index --object-dir=$objdir write &&
145 midx_read_expect 2 34 4 $objdir
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146'
147
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148compare_results_with_midx "two packs"
149
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150test_expect_success 'add more packs' '
151 for j in $(test_seq 11 20)
152 do
153 generate_objects $j &&
154 commit_and_list_objects &&
c4d25228 155 git pack-objects --index-version=2 $objdir/pack/test-pack <obj-list
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DS
156 done
157'
158
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159compare_results_with_midx "mixed mode (two packs + extra)"
160
2c381335 161test_expect_success 'write midx with twelve packs' '
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162 git multi-pack-index --object-dir=$objdir write &&
163 midx_read_expect 12 74 4 $objdir
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164'
165
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166compare_results_with_midx "twelve packs"
167
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168test_expect_success 'verify multi-pack-index success' '
169 git multi-pack-index verify --object-dir=$objdir
170'
171
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172# usage: corrupt_midx_and_verify <pos> <data> <objdir> <string>
173corrupt_midx_and_verify() {
174 POS=$1 &&
175 DATA="${2:-\0}" &&
176 OBJDIR=$3 &&
177 GREPSTR="$4" &&
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178 COMMAND="$5" &&
179 if test -z "$COMMAND"
180 then
181 COMMAND="git multi-pack-index verify --object-dir=$OBJDIR"
182 fi &&
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183 FILE=$OBJDIR/pack/multi-pack-index &&
184 chmod a+w $FILE &&
185 test_when_finished mv midx-backup $FILE &&
186 cp $FILE midx-backup &&
187 printf "$DATA" | dd of="$FILE" bs=1 seek="$POS" conv=notrunc &&
66ec0390 188 test_must_fail $COMMAND 2>test_err &&
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189 grep -v "^+" test_err >err &&
190 test_i18ngrep "$GREPSTR" err
191}
192
193test_expect_success 'verify bad signature' '
194 corrupt_midx_and_verify 0 "\00" $objdir \
195 "multi-pack-index signature"
196'
197
55c5648d 198HASH_LEN=20
cc6af73c 199NUM_OBJECTS=74
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200MIDX_BYTE_VERSION=4
201MIDX_BYTE_OID_VERSION=5
202MIDX_BYTE_CHUNK_COUNT=6
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203MIDX_HEADER_SIZE=12
204MIDX_BYTE_CHUNK_ID=$MIDX_HEADER_SIZE
205MIDX_BYTE_CHUNK_OFFSET=$(($MIDX_HEADER_SIZE + 4))
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206MIDX_NUM_CHUNKS=5
207MIDX_CHUNK_LOOKUP_WIDTH=12
208MIDX_OFFSET_PACKNAMES=$(($MIDX_HEADER_SIZE + \
209 $MIDX_NUM_CHUNKS * $MIDX_CHUNK_LOOKUP_WIDTH))
210MIDX_BYTE_PACKNAME_ORDER=$(($MIDX_OFFSET_PACKNAMES + 2))
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211MIDX_OFFSET_OID_FANOUT=$(($MIDX_OFFSET_PACKNAMES + 652))
212MIDX_OID_FANOUT_WIDTH=4
213MIDX_BYTE_OID_FANOUT_ORDER=$((MIDX_OFFSET_OID_FANOUT + 250 * $MIDX_OID_FANOUT_WIDTH + 1))
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214MIDX_OFFSET_OID_LOOKUP=$(($MIDX_OFFSET_OID_FANOUT + 256 * $MIDX_OID_FANOUT_WIDTH))
215MIDX_BYTE_OID_LOOKUP=$(($MIDX_OFFSET_OID_LOOKUP + 16 * $HASH_LEN))
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216MIDX_OFFSET_OBJECT_OFFSETS=$(($MIDX_OFFSET_OID_LOOKUP + $NUM_OBJECTS * $HASH_LEN))
217MIDX_OFFSET_WIDTH=8
218MIDX_BYTE_PACK_INT_ID=$(($MIDX_OFFSET_OBJECT_OFFSETS + 16 * $MIDX_OFFSET_WIDTH + 2))
219MIDX_BYTE_OFFSET=$(($MIDX_OFFSET_OBJECT_OFFSETS + 16 * $MIDX_OFFSET_WIDTH + 6))
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DS
220
221test_expect_success 'verify bad version' '
222 corrupt_midx_and_verify $MIDX_BYTE_VERSION "\00" $objdir \
223 "multi-pack-index version"
224'
225
226test_expect_success 'verify bad OID version' '
227 corrupt_midx_and_verify $MIDX_BYTE_OID_VERSION "\02" $objdir \
228 "hash version"
229'
230
231test_expect_success 'verify truncated chunk count' '
232 corrupt_midx_and_verify $MIDX_BYTE_CHUNK_COUNT "\01" $objdir \
233 "missing required"
234'
235
236test_expect_success 'verify extended chunk count' '
237 corrupt_midx_and_verify $MIDX_BYTE_CHUNK_COUNT "\07" $objdir \
238 "terminating multi-pack-index chunk id appears earlier than expected"
239'
240
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DS
241test_expect_success 'verify missing required chunk' '
242 corrupt_midx_and_verify $MIDX_BYTE_CHUNK_ID "\01" $objdir \
243 "missing required"
244'
245
246test_expect_success 'verify invalid chunk offset' '
247 corrupt_midx_and_verify $MIDX_BYTE_CHUNK_OFFSET "\01" $objdir \
248 "invalid chunk offset (too large)"
249'
250
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251test_expect_success 'verify packnames out of order' '
252 corrupt_midx_and_verify $MIDX_BYTE_PACKNAME_ORDER "z" $objdir \
253 "pack names out of order"
254'
255
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256test_expect_success 'verify packnames out of order' '
257 corrupt_midx_and_verify $MIDX_BYTE_PACKNAME_ORDER "a" $objdir \
258 "failed to load pack"
259'
260
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261test_expect_success 'verify oid fanout out of order' '
262 corrupt_midx_and_verify $MIDX_BYTE_OID_FANOUT_ORDER "\01" $objdir \
263 "oid fanout out of order"
264'
265
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266test_expect_success 'verify oid lookup out of order' '
267 corrupt_midx_and_verify $MIDX_BYTE_OID_LOOKUP "\00" $objdir \
268 "oid lookup out of order"
269'
270
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271test_expect_success 'verify incorrect pack-int-id' '
272 corrupt_midx_and_verify $MIDX_BYTE_PACK_INT_ID "\07" $objdir \
273 "bad pack-int-id"
274'
275
276test_expect_success 'verify incorrect offset' '
277 corrupt_midx_and_verify $MIDX_BYTE_OFFSET "\07" $objdir \
278 "incorrect object offset"
279'
280
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281test_expect_success 'git-fsck incorrect offset' '
282 corrupt_midx_and_verify $MIDX_BYTE_OFFSET "\07" $objdir \
283 "incorrect object offset" \
284 "git -c core.multipackindex=true fsck"
285'
286
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DS
287test_expect_success 'repack removes multi-pack-index' '
288 test_path_is_file $objdir/pack/multi-pack-index &&
0465a505 289 GIT_TEST_MULTI_PACK_INDEX=0 git repack -adf &&
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290 test_path_is_missing $objdir/pack/multi-pack-index
291'
292
293compare_results_with_midx "after repack"
294
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295test_expect_success 'multi-pack-index and pack-bitmap' '
296 git -c repack.writeBitmaps=true repack -ad &&
297 git multi-pack-index write &&
298 git rev-list --test-bitmap HEAD
299'
300
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DS
301test_expect_success 'multi-pack-index and alternates' '
302 git init --bare alt.git &&
303 echo $(pwd)/alt.git/objects >.git/objects/info/alternates &&
304 echo content1 >file1 &&
305 altblob=$(GIT_DIR=alt.git git hash-object -w file1) &&
306 git cat-file blob $altblob &&
307 git rev-list --all
308'
309
310compare_results_with_midx "with alternate (local midx)"
311
312test_expect_success 'multi-pack-index in an alternate' '
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313 mv .git/objects/pack/* alt.git/objects/pack &&
314 test_commit add_local_objects &&
315 git repack --local &&
316 git multi-pack-index write &&
317 midx_read_expect 1 3 4 $objdir &&
318 git reset --hard HEAD~1 &&
319 rm -f .git/objects/pack/*
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DS
320'
321
322compare_results_with_midx "with alternate (remote midx)"
323
662148c4
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324# usage: corrupt_data <file> <pos> [<data>]
325corrupt_data () {
326 file=$1
327 pos=$2
328 data="${3:-\0}"
329 printf "$data" | dd of="$file" bs=1 seek="$pos" conv=notrunc
330}
331
332# Force 64-bit offsets by manipulating the idx file.
333# This makes the IDX file _incorrect_ so be careful to clean up after!
334test_expect_success 'force some 64-bit offsets with pack-objects' '
335 mkdir objects64 &&
336 mkdir objects64/pack &&
337 for i in $(test_seq 1 11)
338 do
339 generate_objects 11
340 done &&
341 commit_and_list_objects &&
342 pack64=$(git pack-objects --index-version=2,0x40 objects64/pack/test-64 <obj-list) &&
343 idx64=objects64/pack/test-64-$pack64.idx &&
344 chmod u+w $idx64 &&
345 corrupt_data $idx64 2999 "\02" &&
346 midx64=$(git multi-pack-index --object-dir=objects64 write) &&
347 midx_read_expect 1 63 5 objects64 " large-offsets"
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348'
349
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350test_expect_success 'verify multi-pack-index with 64-bit offsets' '
351 git multi-pack-index verify --object-dir=objects64
352'
353
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354NUM_OBJECTS=63
355MIDX_OFFSET_OID_FANOUT=$((MIDX_OFFSET_PACKNAMES + 54))
356MIDX_OFFSET_OID_LOOKUP=$((MIDX_OFFSET_OID_FANOUT + 256 * $MIDX_OID_FANOUT_WIDTH))
357MIDX_OFFSET_OBJECT_OFFSETS=$(($MIDX_OFFSET_OID_LOOKUP + $NUM_OBJECTS * $HASH_LEN))
358MIDX_OFFSET_LARGE_OFFSETS=$(($MIDX_OFFSET_OBJECT_OFFSETS + $NUM_OBJECTS * $MIDX_OFFSET_WIDTH))
359MIDX_BYTE_LARGE_OFFSET=$(($MIDX_OFFSET_LARGE_OFFSETS + 3))
360
361test_expect_success 'verify incorrect 64-bit offset' '
362 corrupt_midx_and_verify $MIDX_BYTE_LARGE_OFFSET "\07" objects64 \
363 "incorrect object offset"
364'
365
cff97116
DS
366test_expect_success 'setup expire tests' '
367 mkdir dup &&
368 (
369 cd dup &&
370 git init &&
371 test-tool genrandom "data" 4096 >large_file.txt &&
372 git update-index --add large_file.txt &&
373 for i in $(test_seq 1 20)
374 do
375 test_commit $i
376 done &&
377 git branch A HEAD &&
378 git branch B HEAD~8 &&
379 git branch C HEAD~13 &&
380 git branch D HEAD~16 &&
381 git branch E HEAD~18 &&
382 git pack-objects --revs .git/objects/pack/pack-A <<-EOF &&
383 refs/heads/A
384 ^refs/heads/B
385 EOF
386 git pack-objects --revs .git/objects/pack/pack-B <<-EOF &&
387 refs/heads/B
388 ^refs/heads/C
389 EOF
390 git pack-objects --revs .git/objects/pack/pack-C <<-EOF &&
391 refs/heads/C
392 ^refs/heads/D
393 EOF
394 git pack-objects --revs .git/objects/pack/pack-D <<-EOF &&
395 refs/heads/D
396 ^refs/heads/E
397 EOF
398 git pack-objects --revs .git/objects/pack/pack-E <<-EOF &&
399 refs/heads/E
400 EOF
401 git multi-pack-index write
402 )
403'
404
405test_expect_success 'expire does not remove any packs' '
406 (
407 cd dup &&
408 ls .git/objects/pack >expect &&
409 git multi-pack-index expire &&
410 ls .git/objects/pack >actual &&
411 test_cmp expect actual
412 )
413'
414
a3407730 415test_done