1ebf19ec3cd559dbf9ae7205a225d6e49368a8d2
[git/git.git] / t / t5319-multi-pack-index.sh
1 #!/bin/sh
2
3 test_description='multi-pack-indexes'
4 . ./test-lib.sh
5
6 objdir=.git/objects
7
8 midx_read_expect () {
9 NUM_PACKS=$1
10 NUM_OBJECTS=$2
11 NUM_CHUNKS=$3
12 OBJECT_DIR=$4
13 EXTRA_CHUNKS="$5"
14 {
15 cat <<-EOF &&
16 header: 4d494458 1 $NUM_CHUNKS $NUM_PACKS
17 chunks: pack-names oid-fanout oid-lookup object-offsets$EXTRA_CHUNKS
18 num_objects: $NUM_OBJECTS
19 packs:
20 EOF
21 if test $NUM_PACKS -ge 1
22 then
23 ls $OBJECT_DIR/pack/ | grep idx | sort
24 fi &&
25 printf "object-dir: $OBJECT_DIR\n"
26 } >expect &&
27 test-tool read-midx $OBJECT_DIR >actual &&
28 test_cmp expect actual
29 }
30
31 test_expect_success 'write midx with no packs' '
32 test_when_finished rm -f pack/multi-pack-index &&
33 git multi-pack-index --object-dir=. write &&
34 midx_read_expect 0 0 4 .
35 '
36
37 generate_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
56 commit_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
71 test_expect_success 'create objects' '
72 test_commit initial &&
73 for i in $(test_seq 1 5)
74 do
75 generate_objects $i
76 done &&
77 commit_and_list_objects
78 '
79
80 test_expect_success 'write midx with one v1 pack' '
81 pack=$(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
86 '
87
88 midx_git_two_modes () {
89 git -c core.multiPackIndex=false $1 >expect &&
90 git -c core.multiPackIndex=true $1 >actual &&
91 if [ "$2" = "sorted" ]
92 then
93 sort <expect >expect.sorted &&
94 mv expect.sorted expect &&
95 sort <actual >actual.sorted &&
96 mv actual.sorted actual
97 fi &&
98 test_cmp expect actual
99 }
100
101 compare_results_with_midx () {
102 MSG=$1
103 test_expect_success "check normal git operations: $MSG" '
104 midx_git_two_modes "rev-list --objects --all" &&
105 midx_git_two_modes "log --raw" &&
106 midx_git_two_modes "count-objects --verbose" &&
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
109 '
110 }
111
112 test_expect_success 'write midx with one v2 pack' '
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 $objdir
116 '
117
118 compare_results_with_midx "one v2 pack"
119
120 test_expect_success 'corrupt idx not opened' '
121 idx=$(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
134 test_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
142 test_expect_success 'write midx with two packs' '
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
146 '
147
148 compare_results_with_midx "two packs"
149
150 test_expect_success 'add more packs' '
151 for j in $(test_seq 11 20)
152 do
153 generate_objects $j &&
154 commit_and_list_objects &&
155 git pack-objects --index-version=2 $objdir/pack/test-pack <obj-list
156 done
157 '
158
159 compare_results_with_midx "mixed mode (two packs + extra)"
160
161 test_expect_success 'write midx with twelve packs' '
162 git multi-pack-index --object-dir=$objdir write &&
163 midx_read_expect 12 74 4 $objdir
164 '
165
166 compare_results_with_midx "twelve packs"
167
168 test_expect_success 'verify multi-pack-index success' '
169 git multi-pack-index verify --object-dir=$objdir
170 '
171
172 # usage: corrupt_midx_and_verify <pos> <data> <objdir> <string>
173 corrupt_midx_and_verify() {
174 POS=$1 &&
175 DATA="${2:-\0}" &&
176 OBJDIR=$3 &&
177 GREPSTR="$4" &&
178 COMMAND="$5" &&
179 if test -z "$COMMAND"
180 then
181 COMMAND="git multi-pack-index verify --object-dir=$OBJDIR"
182 fi &&
183 FILE=$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 &&
188 test_must_fail $COMMAND 2>test_err &&
189 grep -v "^+" test_err >err &&
190 test_i18ngrep "$GREPSTR" err
191 }
192
193 test_expect_success 'verify bad signature' '
194 corrupt_midx_and_verify 0 "\00" $objdir \
195 "multi-pack-index signature"
196 '
197
198 HASH_LEN=20
199 NUM_OBJECTS=74
200 MIDX_BYTE_VERSION=4
201 MIDX_BYTE_OID_VERSION=5
202 MIDX_BYTE_CHUNK_COUNT=6
203 MIDX_HEADER_SIZE=12
204 MIDX_BYTE_CHUNK_ID=$MIDX_HEADER_SIZE
205 MIDX_BYTE_CHUNK_OFFSET=$(($MIDX_HEADER_SIZE + 4))
206 MIDX_NUM_CHUNKS=5
207 MIDX_CHUNK_LOOKUP_WIDTH=12
208 MIDX_OFFSET_PACKNAMES=$(($MIDX_HEADER_SIZE + \
209 $MIDX_NUM_CHUNKS * $MIDX_CHUNK_LOOKUP_WIDTH))
210 MIDX_BYTE_PACKNAME_ORDER=$(($MIDX_OFFSET_PACKNAMES + 2))
211 MIDX_OFFSET_OID_FANOUT=$(($MIDX_OFFSET_PACKNAMES + 652))
212 MIDX_OID_FANOUT_WIDTH=4
213 MIDX_BYTE_OID_FANOUT_ORDER=$((MIDX_OFFSET_OID_FANOUT + 250 * $MIDX_OID_FANOUT_WIDTH + 1))
214 MIDX_OFFSET_OID_LOOKUP=$(($MIDX_OFFSET_OID_FANOUT + 256 * $MIDX_OID_FANOUT_WIDTH))
215 MIDX_BYTE_OID_LOOKUP=$(($MIDX_OFFSET_OID_LOOKUP + 16 * $HASH_LEN))
216 MIDX_OFFSET_OBJECT_OFFSETS=$(($MIDX_OFFSET_OID_LOOKUP + $NUM_OBJECTS * $HASH_LEN))
217 MIDX_OFFSET_WIDTH=8
218 MIDX_BYTE_PACK_INT_ID=$(($MIDX_OFFSET_OBJECT_OFFSETS + 16 * $MIDX_OFFSET_WIDTH + 2))
219 MIDX_BYTE_OFFSET=$(($MIDX_OFFSET_OBJECT_OFFSETS + 16 * $MIDX_OFFSET_WIDTH + 6))
220
221 test_expect_success 'verify bad version' '
222 corrupt_midx_and_verify $MIDX_BYTE_VERSION "\00" $objdir \
223 "multi-pack-index version"
224 '
225
226 test_expect_success 'verify bad OID version' '
227 corrupt_midx_and_verify $MIDX_BYTE_OID_VERSION "\02" $objdir \
228 "hash version"
229 '
230
231 test_expect_success 'verify truncated chunk count' '
232 corrupt_midx_and_verify $MIDX_BYTE_CHUNK_COUNT "\01" $objdir \
233 "missing required"
234 '
235
236 test_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
241 test_expect_success 'verify missing required chunk' '
242 corrupt_midx_and_verify $MIDX_BYTE_CHUNK_ID "\01" $objdir \
243 "missing required"
244 '
245
246 test_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
251 test_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
256 test_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
261 test_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
266 test_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
271 test_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
276 test_expect_success 'verify incorrect offset' '
277 corrupt_midx_and_verify $MIDX_BYTE_OFFSET "\07" $objdir \
278 "incorrect object offset"
279 '
280
281 test_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
287 test_expect_success 'repack removes multi-pack-index' '
288 test_path_is_file $objdir/pack/multi-pack-index &&
289 GIT_TEST_MULTI_PACK_INDEX=0 git repack -adf &&
290 test_path_is_missing $objdir/pack/multi-pack-index
291 '
292
293 compare_results_with_midx "after repack"
294
295 test_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
301 test_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
310 compare_results_with_midx "with alternate (local midx)"
311
312 test_expect_success 'multi-pack-index in an alternate' '
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/*
320 '
321
322 compare_results_with_midx "with alternate (remote midx)"
323
324 # usage: corrupt_data <file> <pos> [<data>]
325 corrupt_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!
334 test_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"
348 '
349
350 test_expect_success 'verify multi-pack-index with 64-bit offsets' '
351 git multi-pack-index verify --object-dir=objects64
352 '
353
354 NUM_OBJECTS=63
355 MIDX_OFFSET_OID_FANOUT=$((MIDX_OFFSET_PACKNAMES + 54))
356 MIDX_OFFSET_OID_LOOKUP=$((MIDX_OFFSET_OID_FANOUT + 256 * $MIDX_OID_FANOUT_WIDTH))
357 MIDX_OFFSET_OBJECT_OFFSETS=$(($MIDX_OFFSET_OID_LOOKUP + $NUM_OBJECTS * $HASH_LEN))
358 MIDX_OFFSET_LARGE_OFFSETS=$(($MIDX_OFFSET_OBJECT_OFFSETS + $NUM_OBJECTS * $MIDX_OFFSET_WIDTH))
359 MIDX_BYTE_LARGE_OFFSET=$(($MIDX_OFFSET_LARGE_OFFSETS + 3))
360
361 test_expect_success 'verify incorrect 64-bit offset' '
362 corrupt_midx_and_verify $MIDX_BYTE_LARGE_OFFSET "\07" objects64 \
363 "incorrect object offset"
364 '
365
366 test_done