Merge branch 'dl/checkout-p-merge-base'
[git] / t / t5319-multi-pack-index.sh
1 #!/bin/sh
2
3 test_description='multi-pack-indexes'
4 . ./test-lib.sh
5
6 GIT_TEST_MULTI_PACK_INDEX=0
7 objdir=.git/objects
8
9 HASH_LEN=$(test_oid rawsz)
10
11 midx_read_expect () {
12         NUM_PACKS=$1
13         NUM_OBJECTS=$2
14         NUM_CHUNKS=$3
15         OBJECT_DIR=$4
16         EXTRA_CHUNKS="$5"
17         {
18                 cat <<-EOF &&
19                 header: 4d494458 1 $HASH_LEN $NUM_CHUNKS $NUM_PACKS
20                 chunks: pack-names oid-fanout oid-lookup object-offsets$EXTRA_CHUNKS
21                 num_objects: $NUM_OBJECTS
22                 packs:
23                 EOF
24                 if test $NUM_PACKS -ge 1
25                 then
26                         ls $OBJECT_DIR/pack/ | grep idx | sort
27                 fi &&
28                 printf "object-dir: $OBJECT_DIR\n"
29         } >expect &&
30         test-tool read-midx $OBJECT_DIR >actual &&
31         test_cmp expect actual
32 }
33
34 test_expect_success 'setup' '
35         test_oid_cache <<-EOF
36         idxoff sha1:2999
37         idxoff sha256:3739
38
39         packnameoff sha1:652
40         packnameoff sha256:940
41
42         fanoutoff sha1:1
43         fanoutoff sha256:3
44         EOF
45 '
46
47 test_expect_success "don't write midx with no packs" '
48         test_must_fail git multi-pack-index --object-dir=. write &&
49         test_path_is_missing pack/multi-pack-index
50 '
51
52 test_expect_success SHA1 'warn if a midx contains no oid' '
53         cp "$TEST_DIRECTORY"/t5319/no-objects.midx $objdir/pack/multi-pack-index &&
54         test_must_fail git multi-pack-index verify &&
55         rm $objdir/pack/multi-pack-index
56 '
57
58 generate_objects () {
59         i=$1
60         iii=$(printf '%03i' $i)
61         {
62                 test-tool genrandom "bar" 200 &&
63                 test-tool genrandom "baz $iii" 50
64         } >wide_delta_$iii &&
65         {
66                 test-tool genrandom "foo"$i 100 &&
67                 test-tool genrandom "foo"$(( $i + 1 )) 100 &&
68                 test-tool genrandom "foo"$(( $i + 2 )) 100
69         } >deep_delta_$iii &&
70         {
71                 echo $iii &&
72                 test-tool genrandom "$iii" 8192
73         } >file_$iii &&
74         git update-index --add file_$iii deep_delta_$iii wide_delta_$iii
75 }
76
77 commit_and_list_objects () {
78         {
79                 echo 101 &&
80                 test-tool genrandom 100 8192;
81         } >file_101 &&
82         git update-index --add file_101 &&
83         tree=$(git write-tree) &&
84         commit=$(git commit-tree $tree -p HEAD</dev/null) &&
85         {
86                 echo $tree &&
87                 git ls-tree $tree | sed -e "s/.* \\([0-9a-f]*\\)        .*/\\1/"
88         } >obj-list &&
89         git reset --hard $commit
90 }
91
92 test_expect_success 'create objects' '
93         test_commit initial &&
94         for i in $(test_seq 1 5)
95         do
96                 generate_objects $i
97         done &&
98         commit_and_list_objects
99 '
100
101 test_expect_success 'write midx with one v1 pack' '
102         pack=$(git pack-objects --index-version=1 $objdir/pack/test <obj-list) &&
103         test_when_finished rm $objdir/pack/test-$pack.pack \
104                 $objdir/pack/test-$pack.idx $objdir/pack/multi-pack-index &&
105         git multi-pack-index --object-dir=$objdir write &&
106         midx_read_expect 1 18 4 $objdir
107 '
108
109 midx_git_two_modes () {
110         git -c core.multiPackIndex=false $1 >expect &&
111         git -c core.multiPackIndex=true $1 >actual &&
112         if [ "$2" = "sorted" ]
113         then
114                 sort <expect >expect.sorted &&
115                 mv expect.sorted expect &&
116                 sort <actual >actual.sorted &&
117                 mv actual.sorted actual
118         fi &&
119         test_cmp expect actual
120 }
121
122 compare_results_with_midx () {
123         MSG=$1
124         test_expect_success "check normal git operations: $MSG" '
125                 midx_git_two_modes "rev-list --objects --all" &&
126                 midx_git_two_modes "log --raw" &&
127                 midx_git_two_modes "count-objects --verbose" &&
128                 midx_git_two_modes "cat-file --batch-all-objects --batch-check" &&
129                 midx_git_two_modes "cat-file --batch-all-objects --batch-check --unordered" sorted
130         '
131 }
132
133 test_expect_success 'write midx with one v2 pack' '
134         git pack-objects --index-version=2,0x40 $objdir/pack/test <obj-list &&
135         git multi-pack-index --object-dir=$objdir write &&
136         midx_read_expect 1 18 4 $objdir
137 '
138
139 compare_results_with_midx "one v2 pack"
140
141 test_expect_success 'corrupt idx not opened' '
142         idx=$(test-tool read-midx $objdir | grep "\.idx\$") &&
143         mv $objdir/pack/$idx backup-$idx &&
144         test_when_finished "mv backup-\$idx \$objdir/pack/\$idx" &&
145
146         # This is the minimum size for a sha-1 based .idx; this lets
147         # us pass perfunctory tests, but anything that actually opens and reads
148         # the idx file will complain.
149         test_copy_bytes 1064 <backup-$idx >$objdir/pack/$idx &&
150
151         git -c core.multiPackIndex=true rev-list --objects --all 2>err &&
152         test_must_be_empty err
153 '
154
155 test_expect_success 'add more objects' '
156         for i in $(test_seq 6 10)
157         do
158                 generate_objects $i
159         done &&
160         commit_and_list_objects
161 '
162
163 test_expect_success 'write midx with two packs' '
164         git pack-objects --index-version=1 $objdir/pack/test-2 <obj-list &&
165         git multi-pack-index --object-dir=$objdir write &&
166         midx_read_expect 2 34 4 $objdir
167 '
168
169 compare_results_with_midx "two packs"
170
171 test_expect_success 'write progress off for redirected stderr' '
172         git multi-pack-index --object-dir=$objdir write 2>err &&
173         test_line_count = 0 err
174 '
175
176 test_expect_success 'write force progress on for stderr' '
177         GIT_PROGRESS_DELAY=0 git multi-pack-index --object-dir=$objdir --progress write 2>err &&
178         test_file_not_empty err
179 '
180
181 test_expect_success 'write with the --no-progress option' '
182         GIT_PROGRESS_DELAY=0 git multi-pack-index --object-dir=$objdir --no-progress write 2>err &&
183         test_line_count = 0 err
184 '
185
186 test_expect_success 'add more packs' '
187         for j in $(test_seq 11 20)
188         do
189                 generate_objects $j &&
190                 commit_and_list_objects &&
191                 git pack-objects --index-version=2 $objdir/pack/test-pack <obj-list
192         done
193 '
194
195 compare_results_with_midx "mixed mode (two packs + extra)"
196
197 test_expect_success 'write midx with twelve packs' '
198         git multi-pack-index --object-dir=$objdir write &&
199         midx_read_expect 12 74 4 $objdir
200 '
201
202 compare_results_with_midx "twelve packs"
203
204 test_expect_success 'warn on improper hash version' '
205         git init --object-format=sha1 sha1 &&
206         (
207                 cd sha1 &&
208                 git config core.multiPackIndex true &&
209                 test_commit 1 &&
210                 git repack -a &&
211                 git multi-pack-index write &&
212                 mv .git/objects/pack/multi-pack-index ../mpi-sha1
213         ) &&
214         git init --object-format=sha256 sha256 &&
215         (
216                 cd sha256 &&
217                 git config core.multiPackIndex true &&
218                 test_commit 1 &&
219                 git repack -a &&
220                 git multi-pack-index write &&
221                 mv .git/objects/pack/multi-pack-index ../mpi-sha256
222         ) &&
223         (
224                 cd sha1 &&
225                 mv ../mpi-sha256 .git/objects/pack/multi-pack-index &&
226                 git log -1 2>err &&
227                 test_i18ngrep "multi-pack-index hash version 2 does not match version 1" err
228         ) &&
229         (
230                 cd sha256 &&
231                 mv ../mpi-sha1 .git/objects/pack/multi-pack-index &&
232                 git log -1 2>err &&
233                 test_i18ngrep "multi-pack-index hash version 1 does not match version 2" err
234         )
235 '
236
237
238 test_expect_success 'verify multi-pack-index success' '
239         git multi-pack-index verify --object-dir=$objdir
240 '
241
242 test_expect_success 'verify progress off for redirected stderr' '
243         git multi-pack-index verify --object-dir=$objdir 2>err &&
244         test_line_count = 0 err
245 '
246
247 test_expect_success 'verify force progress on for stderr' '
248         git multi-pack-index verify --object-dir=$objdir --progress 2>err &&
249         test_file_not_empty err
250 '
251
252 test_expect_success 'verify with the --no-progress option' '
253         git multi-pack-index verify --object-dir=$objdir --no-progress 2>err &&
254         test_line_count = 0 err
255 '
256
257 # usage: corrupt_midx_and_verify <pos> <data> <objdir> <string>
258 corrupt_midx_and_verify() {
259         POS=$1 &&
260         DATA="${2:-\0}" &&
261         OBJDIR=$3 &&
262         GREPSTR="$4" &&
263         COMMAND="$5" &&
264         if test -z "$COMMAND"
265         then
266                 COMMAND="git multi-pack-index verify --object-dir=$OBJDIR"
267         fi &&
268         FILE=$OBJDIR/pack/multi-pack-index &&
269         chmod a+w $FILE &&
270         test_when_finished mv midx-backup $FILE &&
271         cp $FILE midx-backup &&
272         printf "$DATA" | dd of="$FILE" bs=1 seek="$POS" conv=notrunc &&
273         test_must_fail $COMMAND 2>test_err &&
274         grep -v "^+" test_err >err &&
275         test_i18ngrep "$GREPSTR" err
276 }
277
278 test_expect_success 'verify bad signature' '
279         corrupt_midx_and_verify 0 "\00" $objdir \
280                 "multi-pack-index signature"
281 '
282
283 NUM_OBJECTS=74
284 MIDX_BYTE_VERSION=4
285 MIDX_BYTE_OID_VERSION=5
286 MIDX_BYTE_CHUNK_COUNT=6
287 MIDX_HEADER_SIZE=12
288 MIDX_BYTE_CHUNK_ID=$MIDX_HEADER_SIZE
289 MIDX_BYTE_CHUNK_OFFSET=$(($MIDX_HEADER_SIZE + 4))
290 MIDX_NUM_CHUNKS=5
291 MIDX_CHUNK_LOOKUP_WIDTH=12
292 MIDX_OFFSET_PACKNAMES=$(($MIDX_HEADER_SIZE + \
293                          $MIDX_NUM_CHUNKS * $MIDX_CHUNK_LOOKUP_WIDTH))
294 MIDX_BYTE_PACKNAME_ORDER=$(($MIDX_OFFSET_PACKNAMES + 2))
295 MIDX_OFFSET_OID_FANOUT=$(($MIDX_OFFSET_PACKNAMES + $(test_oid packnameoff)))
296 MIDX_OID_FANOUT_WIDTH=4
297 MIDX_BYTE_OID_FANOUT_ORDER=$((MIDX_OFFSET_OID_FANOUT + 250 * $MIDX_OID_FANOUT_WIDTH + $(test_oid fanoutoff)))
298 MIDX_OFFSET_OID_LOOKUP=$(($MIDX_OFFSET_OID_FANOUT + 256 * $MIDX_OID_FANOUT_WIDTH))
299 MIDX_BYTE_OID_LOOKUP=$(($MIDX_OFFSET_OID_LOOKUP + 16 * $HASH_LEN))
300 MIDX_OFFSET_OBJECT_OFFSETS=$(($MIDX_OFFSET_OID_LOOKUP + $NUM_OBJECTS * $HASH_LEN))
301 MIDX_OFFSET_WIDTH=8
302 MIDX_BYTE_PACK_INT_ID=$(($MIDX_OFFSET_OBJECT_OFFSETS + 16 * $MIDX_OFFSET_WIDTH + 2))
303 MIDX_BYTE_OFFSET=$(($MIDX_OFFSET_OBJECT_OFFSETS + 16 * $MIDX_OFFSET_WIDTH + 6))
304
305 test_expect_success 'verify bad version' '
306         corrupt_midx_and_verify $MIDX_BYTE_VERSION "\00" $objdir \
307                 "multi-pack-index version"
308 '
309
310 test_expect_success 'verify bad OID version' '
311         corrupt_midx_and_verify $MIDX_BYTE_OID_VERSION "\03" $objdir \
312                 "hash version"
313 '
314
315 test_expect_success 'verify truncated chunk count' '
316         corrupt_midx_and_verify $MIDX_BYTE_CHUNK_COUNT "\01" $objdir \
317                 "missing required"
318 '
319
320 test_expect_success 'verify extended chunk count' '
321         corrupt_midx_and_verify $MIDX_BYTE_CHUNK_COUNT "\07" $objdir \
322                 "terminating multi-pack-index chunk id appears earlier than expected"
323 '
324
325 test_expect_success 'verify missing required chunk' '
326         corrupt_midx_and_verify $MIDX_BYTE_CHUNK_ID "\01" $objdir \
327                 "missing required"
328 '
329
330 test_expect_success 'verify invalid chunk offset' '
331         corrupt_midx_and_verify $MIDX_BYTE_CHUNK_OFFSET "\01" $objdir \
332                 "invalid chunk offset (too large)"
333 '
334
335 test_expect_success 'verify packnames out of order' '
336         corrupt_midx_and_verify $MIDX_BYTE_PACKNAME_ORDER "z" $objdir \
337                 "pack names out of order"
338 '
339
340 test_expect_success 'verify packnames out of order' '
341         corrupt_midx_and_verify $MIDX_BYTE_PACKNAME_ORDER "a" $objdir \
342                 "failed to load pack"
343 '
344
345 test_expect_success 'verify oid fanout out of order' '
346         corrupt_midx_and_verify $MIDX_BYTE_OID_FANOUT_ORDER "\01" $objdir \
347                 "oid fanout out of order"
348 '
349
350 test_expect_success 'verify oid lookup out of order' '
351         corrupt_midx_and_verify $MIDX_BYTE_OID_LOOKUP "\00" $objdir \
352                 "oid lookup out of order"
353 '
354
355 test_expect_success 'verify incorrect pack-int-id' '
356         corrupt_midx_and_verify $MIDX_BYTE_PACK_INT_ID "\07" $objdir \
357                 "bad pack-int-id"
358 '
359
360 test_expect_success 'verify incorrect offset' '
361         corrupt_midx_and_verify $MIDX_BYTE_OFFSET "\377" $objdir \
362                 "incorrect object offset"
363 '
364
365 test_expect_success 'git-fsck incorrect offset' '
366         corrupt_midx_and_verify $MIDX_BYTE_OFFSET "\377" $objdir \
367                 "incorrect object offset" \
368                 "git -c core.multipackindex=true fsck"
369 '
370
371 test_expect_success 'repack progress off for redirected stderr' '
372         GIT_PROGRESS_DELAY=0 git multi-pack-index --object-dir=$objdir repack 2>err &&
373         test_line_count = 0 err
374 '
375
376 test_expect_success 'repack force progress on for stderr' '
377         GIT_PROGRESS_DELAY=0 git multi-pack-index --object-dir=$objdir --progress repack 2>err &&
378         test_file_not_empty err
379 '
380
381 test_expect_success 'repack with the --no-progress option' '
382         GIT_PROGRESS_DELAY=0 git multi-pack-index --object-dir=$objdir --no-progress repack 2>err &&
383         test_line_count = 0 err
384 '
385
386 test_expect_success 'repack removes multi-pack-index when deleting packs' '
387         test_path_is_file $objdir/pack/multi-pack-index &&
388         # Set GIT_TEST_MULTI_PACK_INDEX to 0 to avoid writing a new
389         # multi-pack-index after repacking, but set "core.multiPackIndex" to
390         # true so that "git repack" can read the existing MIDX.
391         GIT_TEST_MULTI_PACK_INDEX=0 git -c core.multiPackIndex repack -adf &&
392         test_path_is_missing $objdir/pack/multi-pack-index
393 '
394
395 test_expect_success 'repack preserves multi-pack-index when creating packs' '
396         git init preserve &&
397         test_when_finished "rm -fr preserve" &&
398         (
399                 cd preserve &&
400                 packdir=.git/objects/pack &&
401                 midx=$packdir/multi-pack-index &&
402
403                 test_commit 1 &&
404                 pack1=$(git pack-objects --all $packdir/pack) &&
405                 touch $packdir/pack-$pack1.keep &&
406                 test_commit 2 &&
407                 pack2=$(git pack-objects --revs $packdir/pack) &&
408                 touch $packdir/pack-$pack2.keep &&
409
410                 git multi-pack-index write &&
411                 cp $midx $midx.bak &&
412
413                 cat >pack-input <<-EOF &&
414                 HEAD
415                 ^HEAD~1
416                 EOF
417                 test_commit 3 &&
418                 pack3=$(git pack-objects --revs $packdir/pack <pack-input) &&
419                 test_commit 4 &&
420                 pack4=$(git pack-objects --revs $packdir/pack <pack-input) &&
421
422                 GIT_TEST_MULTI_PACK_INDEX=0 git -c core.multiPackIndex repack -ad &&
423                 ls -la $packdir &&
424                 test_path_is_file $packdir/pack-$pack1.pack &&
425                 test_path_is_file $packdir/pack-$pack2.pack &&
426                 test_path_is_missing $packdir/pack-$pack3.pack &&
427                 test_path_is_missing $packdir/pack-$pack4.pack &&
428                 test_cmp_bin $midx.bak $midx
429         )
430 '
431
432 compare_results_with_midx "after repack"
433
434 test_expect_success 'multi-pack-index and pack-bitmap' '
435         git -c repack.writeBitmaps=true repack -ad &&
436         git multi-pack-index write &&
437         git rev-list --test-bitmap HEAD
438 '
439
440 test_expect_success 'multi-pack-index and alternates' '
441         git init --bare alt.git &&
442         echo $(pwd)/alt.git/objects >.git/objects/info/alternates &&
443         echo content1 >file1 &&
444         altblob=$(GIT_DIR=alt.git git hash-object -w file1) &&
445         git cat-file blob $altblob &&
446         git rev-list --all
447 '
448
449 compare_results_with_midx "with alternate (local midx)"
450
451 test_expect_success 'multi-pack-index in an alternate' '
452         mv .git/objects/pack/* alt.git/objects/pack &&
453         test_commit add_local_objects &&
454         git repack --local &&
455         git multi-pack-index write &&
456         midx_read_expect 1 3 4 $objdir &&
457         git reset --hard HEAD~1 &&
458         rm -f .git/objects/pack/*
459 '
460
461 compare_results_with_midx "with alternate (remote midx)"
462
463 # usage: corrupt_data <file> <pos> [<data>]
464 corrupt_data () {
465         file=$1
466         pos=$2
467         data="${3:-\0}"
468         printf "$data" | dd of="$file" bs=1 seek="$pos" conv=notrunc
469 }
470
471 # Force 64-bit offsets by manipulating the idx file.
472 # This makes the IDX file _incorrect_ so be careful to clean up after!
473 test_expect_success 'force some 64-bit offsets with pack-objects' '
474         mkdir objects64 &&
475         mkdir objects64/pack &&
476         for i in $(test_seq 1 11)
477         do
478                 generate_objects 11
479         done &&
480         commit_and_list_objects &&
481         pack64=$(git pack-objects --index-version=2,0x40 objects64/pack/test-64 <obj-list) &&
482         idx64=objects64/pack/test-64-$pack64.idx &&
483         chmod u+w $idx64 &&
484         corrupt_data $idx64 $(test_oid idxoff) "\02" &&
485         midx64=$(git multi-pack-index --object-dir=objects64 write) &&
486         midx_read_expect 1 63 5 objects64 " large-offsets"
487 '
488
489 test_expect_success 'verify multi-pack-index with 64-bit offsets' '
490         git multi-pack-index verify --object-dir=objects64
491 '
492
493 NUM_OBJECTS=63
494 MIDX_OFFSET_OID_FANOUT=$((MIDX_OFFSET_PACKNAMES + 54))
495 MIDX_OFFSET_OID_LOOKUP=$((MIDX_OFFSET_OID_FANOUT + 256 * $MIDX_OID_FANOUT_WIDTH))
496 MIDX_OFFSET_OBJECT_OFFSETS=$(($MIDX_OFFSET_OID_LOOKUP + $NUM_OBJECTS * $HASH_LEN))
497 MIDX_OFFSET_LARGE_OFFSETS=$(($MIDX_OFFSET_OBJECT_OFFSETS + $NUM_OBJECTS * $MIDX_OFFSET_WIDTH))
498 MIDX_BYTE_LARGE_OFFSET=$(($MIDX_OFFSET_LARGE_OFFSETS + 3))
499
500 test_expect_success 'verify incorrect 64-bit offset' '
501         corrupt_midx_and_verify $MIDX_BYTE_LARGE_OFFSET "\07" objects64 \
502                 "incorrect object offset"
503 '
504
505 test_expect_success 'setup expire tests' '
506         mkdir dup &&
507         (
508                 cd dup &&
509                 git init &&
510                 test-tool genrandom "data" 4096 >large_file.txt &&
511                 git update-index --add large_file.txt &&
512                 for i in $(test_seq 1 20)
513                 do
514                         test_commit $i
515                 done &&
516                 git branch A HEAD &&
517                 git branch B HEAD~8 &&
518                 git branch C HEAD~13 &&
519                 git branch D HEAD~16 &&
520                 git branch E HEAD~18 &&
521                 git pack-objects --revs .git/objects/pack/pack-A <<-EOF &&
522                 refs/heads/A
523                 ^refs/heads/B
524                 EOF
525                 git pack-objects --revs .git/objects/pack/pack-B <<-EOF &&
526                 refs/heads/B
527                 ^refs/heads/C
528                 EOF
529                 git pack-objects --revs .git/objects/pack/pack-C <<-EOF &&
530                 refs/heads/C
531                 ^refs/heads/D
532                 EOF
533                 git pack-objects --revs .git/objects/pack/pack-D <<-EOF &&
534                 refs/heads/D
535                 ^refs/heads/E
536                 EOF
537                 git pack-objects --revs .git/objects/pack/pack-E <<-EOF &&
538                 refs/heads/E
539                 EOF
540                 git multi-pack-index write &&
541                 cp -r .git/objects/pack .git/objects/pack-backup
542         )
543 '
544
545 test_expect_success 'expire does not remove any packs' '
546         (
547                 cd dup &&
548                 ls .git/objects/pack >expect &&
549                 git multi-pack-index expire &&
550                 ls .git/objects/pack >actual &&
551                 test_cmp expect actual
552         )
553 '
554
555 test_expect_success 'expire progress off for redirected stderr' '
556         (
557                 cd dup &&
558                 git multi-pack-index expire 2>err &&
559                 test_line_count = 0 err
560         )
561 '
562
563 test_expect_success 'expire force progress on for stderr' '
564         (
565                 cd dup &&
566                 GIT_PROGRESS_DELAY=0 git multi-pack-index --progress expire 2>err &&
567                 test_file_not_empty err
568         )
569 '
570
571 test_expect_success 'expire with the --no-progress option' '
572         (
573                 cd dup &&
574                 GIT_PROGRESS_DELAY=0 git multi-pack-index --no-progress expire 2>err &&
575                 test_line_count = 0 err
576         )
577 '
578
579 test_expect_success 'expire removes unreferenced packs' '
580         (
581                 cd dup &&
582                 git pack-objects --revs .git/objects/pack/pack-combined <<-EOF &&
583                 refs/heads/A
584                 ^refs/heads/C
585                 EOF
586                 git multi-pack-index write &&
587                 ls .git/objects/pack | grep -v -e pack-[AB] >expect &&
588                 git multi-pack-index expire &&
589                 ls .git/objects/pack >actual &&
590                 test_cmp expect actual &&
591                 ls .git/objects/pack/ | grep idx >expect-idx &&
592                 test-tool read-midx .git/objects | grep idx >actual-midx &&
593                 test_cmp expect-idx actual-midx &&
594                 git multi-pack-index verify &&
595                 git fsck
596         )
597 '
598
599 test_expect_success 'repack with minimum size does not alter existing packs' '
600         (
601                 cd dup &&
602                 rm -rf .git/objects/pack &&
603                 mv .git/objects/pack-backup .git/objects/pack &&
604                 test-tool chmtime =-5 .git/objects/pack/pack-D* &&
605                 test-tool chmtime =-4 .git/objects/pack/pack-C* &&
606                 test-tool chmtime =-3 .git/objects/pack/pack-B* &&
607                 test-tool chmtime =-2 .git/objects/pack/pack-A* &&
608                 ls .git/objects/pack >expect &&
609                 MINSIZE=$(test-tool path-utils file-size .git/objects/pack/*pack | sort -n | head -n 1) &&
610                 git multi-pack-index repack --batch-size=$MINSIZE &&
611                 ls .git/objects/pack >actual &&
612                 test_cmp expect actual
613         )
614 '
615
616 test_expect_success 'repack respects repack.packKeptObjects=false' '
617         test_when_finished rm -f dup/.git/objects/pack/*keep &&
618         (
619                 cd dup &&
620                 ls .git/objects/pack/*idx >idx-list &&
621                 test_line_count = 5 idx-list &&
622                 ls .git/objects/pack/*.pack | sed "s/\.pack/.keep/" >keep-list &&
623                 test_line_count = 5 keep-list &&
624                 for keep in $(cat keep-list)
625                 do
626                         touch $keep || return 1
627                 done &&
628                 git multi-pack-index repack --batch-size=0 &&
629                 ls .git/objects/pack/*idx >idx-list &&
630                 test_line_count = 5 idx-list &&
631                 test-tool read-midx .git/objects | grep idx >midx-list &&
632                 test_line_count = 5 midx-list &&
633                 THIRD_SMALLEST_SIZE=$(test-tool path-utils file-size .git/objects/pack/*pack | sort -n | sed -n 3p) &&
634                 BATCH_SIZE=$((THIRD_SMALLEST_SIZE + 1)) &&
635                 git multi-pack-index repack --batch-size=$BATCH_SIZE &&
636                 ls .git/objects/pack/*idx >idx-list &&
637                 test_line_count = 5 idx-list &&
638                 test-tool read-midx .git/objects | grep idx >midx-list &&
639                 test_line_count = 5 midx-list
640         )
641 '
642
643 test_expect_success 'repack creates a new pack' '
644         (
645                 cd dup &&
646                 ls .git/objects/pack/*idx >idx-list &&
647                 test_line_count = 5 idx-list &&
648                 THIRD_SMALLEST_SIZE=$(test-tool path-utils file-size .git/objects/pack/*pack | sort -n | head -n 3 | tail -n 1) &&
649                 BATCH_SIZE=$(($THIRD_SMALLEST_SIZE + 1)) &&
650                 git multi-pack-index repack --batch-size=$BATCH_SIZE &&
651                 ls .git/objects/pack/*idx >idx-list &&
652                 test_line_count = 6 idx-list &&
653                 test-tool read-midx .git/objects | grep idx >midx-list &&
654                 test_line_count = 6 midx-list
655         )
656 '
657
658 test_expect_success 'expire removes repacked packs' '
659         (
660                 cd dup &&
661                 ls -al .git/objects/pack/*pack &&
662                 ls -S .git/objects/pack/*pack | head -n 4 >expect &&
663                 git multi-pack-index expire &&
664                 ls -S .git/objects/pack/*pack >actual &&
665                 test_cmp expect actual &&
666                 test-tool read-midx .git/objects | grep idx >midx-list &&
667                 test_line_count = 4 midx-list
668         )
669 '
670
671 test_expect_success 'expire works when adding new packs' '
672         (
673                 cd dup &&
674                 git pack-objects --revs .git/objects/pack/pack-combined <<-EOF &&
675                 refs/heads/A
676                 ^refs/heads/B
677                 EOF
678                 git pack-objects --revs .git/objects/pack/pack-combined <<-EOF &&
679                 refs/heads/B
680                 ^refs/heads/C
681                 EOF
682                 git pack-objects --revs .git/objects/pack/pack-combined <<-EOF &&
683                 refs/heads/C
684                 ^refs/heads/D
685                 EOF
686                 git multi-pack-index write &&
687                 git pack-objects --revs .git/objects/pack/a-pack <<-EOF &&
688                 refs/heads/D
689                 ^refs/heads/E
690                 EOF
691                 git multi-pack-index write &&
692                 git pack-objects --revs .git/objects/pack/z-pack <<-EOF &&
693                 refs/heads/E
694                 EOF
695                 git multi-pack-index expire &&
696                 ls .git/objects/pack/ | grep idx >expect &&
697                 test-tool read-midx .git/objects | grep idx >actual &&
698                 test_cmp expect actual &&
699                 git multi-pack-index verify
700         )
701 '
702
703 test_expect_success 'expire respects .keep files' '
704         (
705                 cd dup &&
706                 git pack-objects --revs .git/objects/pack/pack-all <<-EOF &&
707                 refs/heads/A
708                 EOF
709                 git multi-pack-index write &&
710                 PACKA=$(ls .git/objects/pack/a-pack*\.pack | sed s/\.pack\$//) &&
711                 touch $PACKA.keep &&
712                 git multi-pack-index expire &&
713                 ls -S .git/objects/pack/a-pack* | grep $PACKA >a-pack-files &&
714                 test_line_count = 3 a-pack-files &&
715                 test-tool read-midx .git/objects | grep idx >midx-list &&
716                 test_line_count = 2 midx-list
717         )
718 '
719
720 test_expect_success 'repack --batch-size=0 repacks everything' '
721         cp -r dup dup2 &&
722         (
723                 cd dup &&
724                 rm .git/objects/pack/*.keep &&
725                 ls .git/objects/pack/*idx >idx-list &&
726                 test_line_count = 2 idx-list &&
727                 git multi-pack-index repack --batch-size=0 &&
728                 ls .git/objects/pack/*idx >idx-list &&
729                 test_line_count = 3 idx-list &&
730                 test-tool read-midx .git/objects | grep idx >midx-list &&
731                 test_line_count = 3 midx-list &&
732                 git multi-pack-index expire &&
733                 ls -al .git/objects/pack/*idx >idx-list &&
734                 test_line_count = 1 idx-list &&
735                 git multi-pack-index repack --batch-size=0 &&
736                 ls -al .git/objects/pack/*idx >new-idx-list &&
737                 test_cmp idx-list new-idx-list
738         )
739 '
740
741 test_expect_success 'repack --batch-size=<large> repacks everything' '
742         (
743                 cd dup2 &&
744                 rm .git/objects/pack/*.keep &&
745                 ls .git/objects/pack/*idx >idx-list &&
746                 test_line_count = 2 idx-list &&
747                 git multi-pack-index repack --batch-size=2000000 &&
748                 ls .git/objects/pack/*idx >idx-list &&
749                 test_line_count = 3 idx-list &&
750                 test-tool read-midx .git/objects | grep idx >midx-list &&
751                 test_line_count = 3 midx-list &&
752                 git multi-pack-index expire &&
753                 ls -al .git/objects/pack/*idx >idx-list &&
754                 test_line_count = 1 idx-list
755         )
756 '
757
758 test_done