Merge branch 'js/mingw-wants-vista-or-above'
[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         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 &&
97         test_cmp expect actual
98 }
99
100 compare_results_with_midx () {
101         MSG=$1
102         test_expect_success "check normal git operations: $MSG" '
103                 midx_git_two_modes "rev-list --objects --all" &&
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
108         '
109 }
110
111 test_expect_success 'write midx with one v2 pack' '
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
115 '
116
117 compare_results_with_midx "one v2 pack"
118
119 test_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
127 test_expect_success 'write midx with two packs' '
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
131 '
132
133 compare_results_with_midx "two packs"
134
135 test_expect_success 'add more packs' '
136         for j in $(test_seq 11 20)
137         do
138                 generate_objects $j &&
139                 commit_and_list_objects &&
140                 git pack-objects --index-version=2 $objdir/pack/test-pack <obj-list
141         done
142 '
143
144 compare_results_with_midx "mixed mode (two packs + extra)"
145
146 test_expect_success 'write midx with twelve packs' '
147         git multi-pack-index --object-dir=$objdir write &&
148         midx_read_expect 12 74 4 $objdir
149 '
150
151 compare_results_with_midx "twelve packs"
152
153 test_expect_success 'verify multi-pack-index success' '
154         git multi-pack-index verify --object-dir=$objdir
155 '
156
157 # usage: corrupt_midx_and_verify <pos> <data> <objdir> <string>
158 corrupt_midx_and_verify() {
159         POS=$1 &&
160         DATA="${2:-\0}" &&
161         OBJDIR=$3 &&
162         GREPSTR="$4" &&
163         COMMAND="$5" &&
164         if test -z "$COMMAND"
165         then
166                 COMMAND="git multi-pack-index verify --object-dir=$OBJDIR"
167         fi &&
168         FILE=$OBJDIR/pack/multi-pack-index &&
169         chmod a+w $FILE &&
170         test_when_finished mv midx-backup $FILE &&
171         cp $FILE midx-backup &&
172         printf "$DATA" | dd of="$FILE" bs=1 seek="$POS" conv=notrunc &&
173         test_must_fail $COMMAND 2>test_err &&
174         grep -v "^+" test_err >err &&
175         test_i18ngrep "$GREPSTR" err
176 }
177
178 test_expect_success 'verify bad signature' '
179         corrupt_midx_and_verify 0 "\00" $objdir \
180                 "multi-pack-index signature"
181 '
182
183 HASH_LEN=20
184 NUM_OBJECTS=74
185 MIDX_BYTE_VERSION=4
186 MIDX_BYTE_OID_VERSION=5
187 MIDX_BYTE_CHUNK_COUNT=6
188 MIDX_HEADER_SIZE=12
189 MIDX_BYTE_CHUNK_ID=$MIDX_HEADER_SIZE
190 MIDX_BYTE_CHUNK_OFFSET=$(($MIDX_HEADER_SIZE + 4))
191 MIDX_NUM_CHUNKS=5
192 MIDX_CHUNK_LOOKUP_WIDTH=12
193 MIDX_OFFSET_PACKNAMES=$(($MIDX_HEADER_SIZE + \
194                          $MIDX_NUM_CHUNKS * $MIDX_CHUNK_LOOKUP_WIDTH))
195 MIDX_BYTE_PACKNAME_ORDER=$(($MIDX_OFFSET_PACKNAMES + 2))
196 MIDX_OFFSET_OID_FANOUT=$(($MIDX_OFFSET_PACKNAMES + 652))
197 MIDX_OID_FANOUT_WIDTH=4
198 MIDX_BYTE_OID_FANOUT_ORDER=$((MIDX_OFFSET_OID_FANOUT + 250 * $MIDX_OID_FANOUT_WIDTH + 1))
199 MIDX_OFFSET_OID_LOOKUP=$(($MIDX_OFFSET_OID_FANOUT + 256 * $MIDX_OID_FANOUT_WIDTH))
200 MIDX_BYTE_OID_LOOKUP=$(($MIDX_OFFSET_OID_LOOKUP + 16 * $HASH_LEN))
201 MIDX_OFFSET_OBJECT_OFFSETS=$(($MIDX_OFFSET_OID_LOOKUP + $NUM_OBJECTS * $HASH_LEN))
202 MIDX_OFFSET_WIDTH=8
203 MIDX_BYTE_PACK_INT_ID=$(($MIDX_OFFSET_OBJECT_OFFSETS + 16 * $MIDX_OFFSET_WIDTH + 2))
204 MIDX_BYTE_OFFSET=$(($MIDX_OFFSET_OBJECT_OFFSETS + 16 * $MIDX_OFFSET_WIDTH + 6))
205
206 test_expect_success 'verify bad version' '
207         corrupt_midx_and_verify $MIDX_BYTE_VERSION "\00" $objdir \
208                 "multi-pack-index version"
209 '
210
211 test_expect_success 'verify bad OID version' '
212         corrupt_midx_and_verify $MIDX_BYTE_OID_VERSION "\02" $objdir \
213                 "hash version"
214 '
215
216 test_expect_success 'verify truncated chunk count' '
217         corrupt_midx_and_verify $MIDX_BYTE_CHUNK_COUNT "\01" $objdir \
218                 "missing required"
219 '
220
221 test_expect_success 'verify extended chunk count' '
222         corrupt_midx_and_verify $MIDX_BYTE_CHUNK_COUNT "\07" $objdir \
223                 "terminating multi-pack-index chunk id appears earlier than expected"
224 '
225
226 test_expect_success 'verify missing required chunk' '
227         corrupt_midx_and_verify $MIDX_BYTE_CHUNK_ID "\01" $objdir \
228                 "missing required"
229 '
230
231 test_expect_success 'verify invalid chunk offset' '
232         corrupt_midx_and_verify $MIDX_BYTE_CHUNK_OFFSET "\01" $objdir \
233                 "invalid chunk offset (too large)"
234 '
235
236 test_expect_success 'verify packnames out of order' '
237         corrupt_midx_and_verify $MIDX_BYTE_PACKNAME_ORDER "z" $objdir \
238                 "pack names out of order"
239 '
240
241 test_expect_success 'verify packnames out of order' '
242         corrupt_midx_and_verify $MIDX_BYTE_PACKNAME_ORDER "a" $objdir \
243                 "failed to load pack"
244 '
245
246 test_expect_success 'verify oid fanout out of order' '
247         corrupt_midx_and_verify $MIDX_BYTE_OID_FANOUT_ORDER "\01" $objdir \
248                 "oid fanout out of order"
249 '
250
251 test_expect_success 'verify oid lookup out of order' '
252         corrupt_midx_and_verify $MIDX_BYTE_OID_LOOKUP "\00" $objdir \
253                 "oid lookup out of order"
254 '
255
256 test_expect_success 'verify incorrect pack-int-id' '
257         corrupt_midx_and_verify $MIDX_BYTE_PACK_INT_ID "\07" $objdir \
258                 "bad pack-int-id"
259 '
260
261 test_expect_success 'verify incorrect offset' '
262         corrupt_midx_and_verify $MIDX_BYTE_OFFSET "\07" $objdir \
263                 "incorrect object offset"
264 '
265
266 test_expect_success 'git-fsck incorrect offset' '
267         corrupt_midx_and_verify $MIDX_BYTE_OFFSET "\07" $objdir \
268                 "incorrect object offset" \
269                 "git -c core.multipackindex=true fsck"
270 '
271
272 test_expect_success 'repack removes multi-pack-index' '
273         test_path_is_file $objdir/pack/multi-pack-index &&
274         git repack -adf &&
275         test_path_is_missing $objdir/pack/multi-pack-index
276 '
277
278 compare_results_with_midx "after repack"
279
280 test_expect_success 'multi-pack-index and pack-bitmap' '
281         git -c repack.writeBitmaps=true repack -ad &&
282         git multi-pack-index write &&
283         git rev-list --test-bitmap HEAD
284 '
285
286 test_expect_success 'multi-pack-index and alternates' '
287         git init --bare alt.git &&
288         echo $(pwd)/alt.git/objects >.git/objects/info/alternates &&
289         echo content1 >file1 &&
290         altblob=$(GIT_DIR=alt.git git hash-object -w file1) &&
291         git cat-file blob $altblob &&
292         git rev-list --all
293 '
294
295 compare_results_with_midx "with alternate (local midx)"
296
297 test_expect_success 'multi-pack-index in an alternate' '
298         mv .git/objects/pack/* alt.git/objects/pack &&
299         test_commit add_local_objects &&
300         git repack --local &&
301         git multi-pack-index write &&
302         midx_read_expect 1 3 4 $objdir &&
303         git reset --hard HEAD~1 &&
304         rm -f .git/objects/pack/*
305 '
306
307 compare_results_with_midx "with alternate (remote midx)"
308
309 # usage: corrupt_data <file> <pos> [<data>]
310 corrupt_data () {
311         file=$1
312         pos=$2
313         data="${3:-\0}"
314         printf "$data" | dd of="$file" bs=1 seek="$pos" conv=notrunc
315 }
316
317 # Force 64-bit offsets by manipulating the idx file.
318 # This makes the IDX file _incorrect_ so be careful to clean up after!
319 test_expect_success 'force some 64-bit offsets with pack-objects' '
320         mkdir objects64 &&
321         mkdir objects64/pack &&
322         for i in $(test_seq 1 11)
323         do
324                 generate_objects 11
325         done &&
326         commit_and_list_objects &&
327         pack64=$(git pack-objects --index-version=2,0x40 objects64/pack/test-64 <obj-list) &&
328         idx64=objects64/pack/test-64-$pack64.idx &&
329         chmod u+w $idx64 &&
330         corrupt_data $idx64 2999 "\02" &&
331         midx64=$(git multi-pack-index --object-dir=objects64 write) &&
332         midx_read_expect 1 63 5 objects64 " large-offsets"
333 '
334
335 test_expect_success 'verify multi-pack-index with 64-bit offsets' '
336         git multi-pack-index verify --object-dir=objects64
337 '
338
339 NUM_OBJECTS=63
340 MIDX_OFFSET_OID_FANOUT=$((MIDX_OFFSET_PACKNAMES + 54))
341 MIDX_OFFSET_OID_LOOKUP=$((MIDX_OFFSET_OID_FANOUT + 256 * $MIDX_OID_FANOUT_WIDTH))
342 MIDX_OFFSET_OBJECT_OFFSETS=$(($MIDX_OFFSET_OID_LOOKUP + $NUM_OBJECTS * $HASH_LEN))
343 MIDX_OFFSET_LARGE_OFFSETS=$(($MIDX_OFFSET_OBJECT_OFFSETS + $NUM_OBJECTS * $MIDX_OFFSET_WIDTH))
344 MIDX_BYTE_LARGE_OFFSET=$(($MIDX_OFFSET_LARGE_OFFSETS + 3))
345
346 test_expect_success 'verify incorrect 64-bit offset' '
347         corrupt_midx_and_verify $MIDX_BYTE_LARGE_OFFSET "\07" objects64 \
348                 "incorrect object offset"
349 '
350
351 test_done