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 $objdir
 146 '
 147
 148 compare_results_with_midx "two packs"
 149
 150 test_expect_success 'write progress off for redirected stderr' '
 151         git multi-pack-index --object-dir=$objdir write 2>err &&
 152         test_line_count = 0 err
 153 '
 154
 155 test_expect_success 'write force progress on for stderr' '
 156         git multi-pack-index --object-dir=$objdir --progress write 2>err &&
 157         test_file_not_empty err
 158 '
 159
 160 test_expect_success 'write with the --no-progress option' '
 161         git multi-pack-index --object-dir=$objdir --no-progress write 2>err &&
 162         test_line_count = 0 err
 163 '
 164
 165 test_expect_success 'add more packs' '
 166         for j in $(test_seq 11 20)
 167         do
 168                 generate_objects $j &&
 169                 commit_and_list_objects &&
 170                 git pack-objects --index-version=2 $objdir/pack/test-pack <obj-list
 171         done
 172 '
 173
 174 compare_results_with_midx "mixed mode (two packs + extra)"
 175
 176 test_expect_success 'write midx with twelve packs' '
 177         git multi-pack-index --object-dir=$objdir write &&
 178         midx_read_expect 12 74 4 $objdir
 179 '
 180
 181 compare_results_with_midx "twelve packs"
 182
 183 test_expect_success 'verify multi-pack-index success' '
 184         git multi-pack-index verify --object-dir=$objdir
 185 '
 186
 187 test_expect_success 'verify progress off for redirected stderr' '
 188         git multi-pack-index verify --object-dir=$objdir 2>err &&
 189         test_line_count = 0 err
 190 '
 191
 192 test_expect_success 'verify force progress on for stderr' '
 193         git multi-pack-index verify --object-dir=$objdir --progress 2>err &&
 194         test_file_not_empty err
 195 '
 196
 197 test_expect_success 'verify with the --no-progress option' '
 198         git multi-pack-index verify --object-dir=$objdir --no-progress 2>err &&
 199         test_line_count = 0 err
 200 '
 201
 202 # usage: corrupt_midx_and_verify <pos> <data> <objdir> <string>
 203 corrupt_midx_and_verify() {
 204         POS=$1 &&
 205         DATA="${2:-\0}" &&
 206         OBJDIR=$3 &&
 207         GREPSTR="$4" &&
 208         COMMAND="$5" &&
 209         if test -z "$COMMAND"
 210         then
 211                 COMMAND="git multi-pack-index verify --object-dir=$OBJDIR"
 212         fi &&
 213         FILE=$OBJDIR/pack/multi-pack-index &&
 214         chmod a+w $FILE &&
 215         test_when_finished mv midx-backup $FILE &&
 216         cp $FILE midx-backup &&
 217         printf "$DATA" | dd of="$FILE" bs=1 seek="$POS" conv=notrunc &&
 218         test_must_fail $COMMAND 2>test_err &&
 219         grep -v "^+" test_err >err &&
 220         test_i18ngrep "$GREPSTR" err
 221 }
 222
 223 test_expect_success 'verify bad signature' '
 224         corrupt_midx_and_verify 0 "\00" $objdir \
 225                 "multi-pack-index signature"
 226 '
 227
 228 HASH_LEN=20
 229 NUM_OBJECTS=74
 230 MIDX_BYTE_VERSION=4
 231 MIDX_BYTE_OID_VERSION=5
 232 MIDX_BYTE_CHUNK_COUNT=6
 233 MIDX_HEADER_SIZE=12
 234 MIDX_BYTE_CHUNK_ID=$MIDX_HEADER_SIZE
 235 MIDX_BYTE_CHUNK_OFFSET=$(($MIDX_HEADER_SIZE + 4))
 236 MIDX_NUM_CHUNKS=5
 237 MIDX_CHUNK_LOOKUP_WIDTH=12
 238 MIDX_OFFSET_PACKNAMES=$(($MIDX_HEADER_SIZE + \
 239                          $MIDX_NUM_CHUNKS * $MIDX_CHUNK_LOOKUP_WIDTH))
 240 MIDX_BYTE_PACKNAME_ORDER=$(($MIDX_OFFSET_PACKNAMES + 2))
 241 MIDX_OFFSET_OID_FANOUT=$(($MIDX_OFFSET_PACKNAMES + 652))
 242 MIDX_OID_FANOUT_WIDTH=4
 243 MIDX_BYTE_OID_FANOUT_ORDER=$((MIDX_OFFSET_OID_FANOUT + 250 * $MIDX_OID_FANOUT_WIDTH + 1))
 244 MIDX_OFFSET_OID_LOOKUP=$(($MIDX_OFFSET_OID_FANOUT + 256 * $MIDX_OID_FANOUT_WIDTH))
 245 MIDX_BYTE_OID_LOOKUP=$(($MIDX_OFFSET_OID_LOOKUP + 16 * $HASH_LEN))
 246 MIDX_OFFSET_OBJECT_OFFSETS=$(($MIDX_OFFSET_OID_LOOKUP + $NUM_OBJECTS * $HASH_LEN))
 247 MIDX_OFFSET_WIDTH=8
 248 MIDX_BYTE_PACK_INT_ID=$(($MIDX_OFFSET_OBJECT_OFFSETS + 16 * $MIDX_OFFSET_WIDTH + 2))
 249 MIDX_BYTE_OFFSET=$(($MIDX_OFFSET_OBJECT_OFFSETS + 16 * $MIDX_OFFSET_WIDTH + 6))
 250
 251 test_expect_success 'verify bad version' '
 252         corrupt_midx_and_verify $MIDX_BYTE_VERSION "\00" $objdir \
 253                 "multi-pack-index version"
 254 '
 255
 256 test_expect_success 'verify bad OID version' '
 257         corrupt_midx_and_verify $MIDX_BYTE_OID_VERSION "\02" $objdir \
 258                 "hash version"
 259 '
 260
 261 test_expect_success 'verify truncated chunk count' '
 262         corrupt_midx_and_verify $MIDX_BYTE_CHUNK_COUNT "\01" $objdir \
 263                 "missing required"
 264 '
 265
 266 test_expect_success 'verify extended chunk count' '
 267         corrupt_midx_and_verify $MIDX_BYTE_CHUNK_COUNT "\07" $objdir \
 268                 "terminating multi-pack-index chunk id appears earlier than expected"
 269 '
 270
 271 test_expect_success 'verify missing required chunk' '
 272         corrupt_midx_and_verify $MIDX_BYTE_CHUNK_ID "\01" $objdir \
 273                 "missing required"
 274 '
 275
 276 test_expect_success 'verify invalid chunk offset' '
 277         corrupt_midx_and_verify $MIDX_BYTE_CHUNK_OFFSET "\01" $objdir \
 278                 "invalid chunk offset (too large)"
 279 '
 280
 281 test_expect_success 'verify packnames out of order' '
 282         corrupt_midx_and_verify $MIDX_BYTE_PACKNAME_ORDER "z" $objdir \
 283                 "pack names out of order"
 284 '
 285
 286 test_expect_success 'verify packnames out of order' '
 287         corrupt_midx_and_verify $MIDX_BYTE_PACKNAME_ORDER "a" $objdir \
 288                 "failed to load pack"
 289 '
 290
 291 test_expect_success 'verify oid fanout out of order' '
 292         corrupt_midx_and_verify $MIDX_BYTE_OID_FANOUT_ORDER "\01" $objdir \
 293                 "oid fanout out of order"
 294 '
 295
 296 test_expect_success 'verify oid lookup out of order' '
 297         corrupt_midx_and_verify $MIDX_BYTE_OID_LOOKUP "\00" $objdir \
 298                 "oid lookup out of order"
 299 '
 300
 301 test_expect_success 'verify incorrect pack-int-id' '
 302         corrupt_midx_and_verify $MIDX_BYTE_PACK_INT_ID "\07" $objdir \
 303                 "bad pack-int-id"
 304 '
 305
 306 test_expect_success 'verify incorrect offset' '
 307         corrupt_midx_and_verify $MIDX_BYTE_OFFSET "\07" $objdir \
 308                 "incorrect object offset"
 309 '
 310
 311 test_expect_success 'git-fsck incorrect offset' '
 312         corrupt_midx_and_verify $MIDX_BYTE_OFFSET "\07" $objdir \
 313                 "incorrect object offset" \
 314                 "git -c core.multipackindex=true fsck"
 315 '
 316
 317 test_expect_success 'repack progress off for redirected stderr' '
 318         git multi-pack-index --object-dir=$objdir repack 2>err &&
 319         test_line_count = 0 err
 320 '
 321
 322 test_expect_success 'repack force progress on for stderr' '
 323         git multi-pack-index --object-dir=$objdir --progress repack 2>err &&
 324         test_file_not_empty err
 325 '
 326
 327 test_expect_success 'repack with the --no-progress option' '
 328         git multi-pack-index --object-dir=$objdir --no-progress repack 2>err &&
 329         test_line_count = 0 err
 330 '
 331
 332 test_expect_success 'repack removes multi-pack-index' '
 333         test_path_is_file $objdir/pack/multi-pack-index &&
 334         GIT_TEST_MULTI_PACK_INDEX=0 git repack -adf &&
 335         test_path_is_missing $objdir/pack/multi-pack-index
 336 '
 337
 338 compare_results_with_midx "after repack"
 339
 340 test_expect_success 'multi-pack-index and pack-bitmap' '
 341         git -c repack.writeBitmaps=true repack -ad &&
 342         git multi-pack-index write &&
 343         git rev-list --test-bitmap HEAD
 344 '
 345
 346 test_expect_success 'multi-pack-index and alternates' '
 347         git init --bare alt.git &&
 348         echo $(pwd)/alt.git/objects >.git/objects/info/alternates &&
 349         echo content1 >file1 &&
 350         altblob=$(GIT_DIR=alt.git git hash-object -w file1) &&
 351         git cat-file blob $altblob &&
 352         git rev-list --all
 353 '
 354
 355 compare_results_with_midx "with alternate (local midx)"
 356
 357 test_expect_success 'multi-pack-index in an alternate' '
 358         mv .git/objects/pack/* alt.git/objects/pack &&
 359         test_commit add_local_objects &&
 360         git repack --local &&
 361         git multi-pack-index write &&
 362         midx_read_expect 1 3 4 $objdir &&
 363         git reset --hard HEAD~1 &&
 364         rm -f .git/objects/pack/*
 365 '
 366
 367 compare_results_with_midx "with alternate (remote midx)"
 368
 369 # usage: corrupt_data <file> <pos> [<data>]
 370 corrupt_data () {
 371         file=$1
 372         pos=$2
 373         data="${3:-\0}"
 374         printf "$data" | dd of="$file" bs=1 seek="$pos" conv=notrunc
 375 }
 376
 377 # Force 64-bit offsets by manipulating the idx file.
 378 # This makes the IDX file _incorrect_ so be careful to clean up after!
 379 test_expect_success 'force some 64-bit offsets with pack-objects' '
 380         mkdir objects64 &&
 381         mkdir objects64/pack &&
 382         for i in $(test_seq 1 11)
 383         do
 384                 generate_objects 11
 385         done &&
 386         commit_and_list_objects &&
 387         pack64=$(git pack-objects --index-version=2,0x40 objects64/pack/test-64 <obj-list) &&
 388         idx64=objects64/pack/test-64-$pack64.idx &&
 389         chmod u+w $idx64 &&
 390         corrupt_data $idx64 2999 "\02" &&
 391         midx64=$(git multi-pack-index --object-dir=objects64 write) &&
 392         midx_read_expect 1 63 5 objects64 " large-offsets"
 393 '
 394
 395 test_expect_success 'verify multi-pack-index with 64-bit offsets' '
 396         git multi-pack-index verify --object-dir=objects64
 397 '
 398
 399 NUM_OBJECTS=63
 400 MIDX_OFFSET_OID_FANOUT=$((MIDX_OFFSET_PACKNAMES + 54))
 401 MIDX_OFFSET_OID_LOOKUP=$((MIDX_OFFSET_OID_FANOUT + 256 * $MIDX_OID_FANOUT_WIDTH))
 402 MIDX_OFFSET_OBJECT_OFFSETS=$(($MIDX_OFFSET_OID_LOOKUP + $NUM_OBJECTS * $HASH_LEN))
 403 MIDX_OFFSET_LARGE_OFFSETS=$(($MIDX_OFFSET_OBJECT_OFFSETS + $NUM_OBJECTS * $MIDX_OFFSET_WIDTH))
 404 MIDX_BYTE_LARGE_OFFSET=$(($MIDX_OFFSET_LARGE_OFFSETS + 3))
 405
 406 test_expect_success 'verify incorrect 64-bit offset' '
 407         corrupt_midx_and_verify $MIDX_BYTE_LARGE_OFFSET "\07" objects64 \
 408                 "incorrect object offset"
 409 '
 410
 411 test_expect_success 'setup expire tests' '
 412         mkdir dup &&
 413         (
 414                 cd dup &&
 415                 git init &&
 416                 test-tool genrandom "data" 4096 >large_file.txt &&
 417                 git update-index --add large_file.txt &&
 418                 for i in $(test_seq 1 20)
 419                 do
 420                         test_commit $i
 421                 done &&
 422                 git branch A HEAD &&
 423                 git branch B HEAD~8 &&
 424                 git branch C HEAD~13 &&
 425                 git branch D HEAD~16 &&
 426                 git branch E HEAD~18 &&
 427                 git pack-objects --revs .git/objects/pack/pack-A <<-EOF &&
 428                 refs/heads/A
 429                 ^refs/heads/B
 430                 EOF
 431                 git pack-objects --revs .git/objects/pack/pack-B <<-EOF &&
 432                 refs/heads/B
 433                 ^refs/heads/C
 434                 EOF
 435                 git pack-objects --revs .git/objects/pack/pack-C <<-EOF &&
 436                 refs/heads/C
 437                 ^refs/heads/D
 438                 EOF
 439                 git pack-objects --revs .git/objects/pack/pack-D <<-EOF &&
 440                 refs/heads/D
 441                 ^refs/heads/E
 442                 EOF
 443                 git pack-objects --revs .git/objects/pack/pack-E <<-EOF &&
 444                 refs/heads/E
 445                 EOF
 446                 git multi-pack-index write &&
 447                 cp -r .git/objects/pack .git/objects/pack-backup
 448         )
 449 '
 450
 451 test_expect_success 'expire does not remove any packs' '
 452         (
 453                 cd dup &&
 454                 ls .git/objects/pack >expect &&
 455                 git multi-pack-index expire &&
 456                 ls .git/objects/pack >actual &&
 457                 test_cmp expect actual
 458         )
 459 '
 460
 461 test_expect_success 'expire progress off for redirected stderr' '
 462         (
 463                 cd dup &&
 464                 git multi-pack-index expire 2>err &&
 465                 test_line_count = 0 err
 466         )
 467 '
 468
 469 test_expect_success 'expire force progress on for stderr' '
 470         (
 471                 cd dup &&
 472                 git multi-pack-index --progress expire 2>err &&
 473                 test_file_not_empty err
 474         )
 475 '
 476
 477 test_expect_success 'expire with the --no-progress option' '
 478         (
 479                 cd dup &&
 480                 git multi-pack-index --no-progress expire 2>err &&
 481                 test_line_count = 0 err
 482         )
 483 '
 484
 485 test_expect_success 'expire removes unreferenced packs' '
 486         (
 487                 cd dup &&
 488                 git pack-objects --revs .git/objects/pack/pack-combined <<-EOF &&
 489                 refs/heads/A
 490                 ^refs/heads/C
 491                 EOF
 492                 git multi-pack-index write &&
 493                 ls .git/objects/pack | grep -v -e pack-[AB] >expect &&
 494                 git multi-pack-index expire &&
 495                 ls .git/objects/pack >actual &&
 496                 test_cmp expect actual &&
 497                 ls .git/objects/pack/ | grep idx >expect-idx &&
 498                 test-tool read-midx .git/objects | grep idx >actual-midx &&
 499                 test_cmp expect-idx actual-midx &&
 500                 git multi-pack-index verify &&
 501                 git fsck
 502         )
 503 '
 504
 505 test_expect_success 'repack with minimum size does not alter existing packs' '
 506         (
 507                 cd dup &&
 508                 rm -rf .git/objects/pack &&
 509                 mv .git/objects/pack-backup .git/objects/pack &&
 510                 touch -m -t 201901010000 .git/objects/pack/pack-D* &&
 511                 touch -m -t 201901010001 .git/objects/pack/pack-C* &&
 512                 touch -m -t 201901010002 .git/objects/pack/pack-B* &&
 513                 touch -m -t 201901010003 .git/objects/pack/pack-A* &&
 514                 ls .git/objects/pack >expect &&
 515                 MINSIZE=$(test-tool path-utils file-size .git/objects/pack/*pack | sort -n | head -n 1) &&
 516                 git multi-pack-index repack --batch-size=$MINSIZE &&
 517                 ls .git/objects/pack >actual &&
 518                 test_cmp expect actual
 519         )
 520 '
 521
 522 test_expect_success 'repack creates a new pack' '
 523         (
 524                 cd dup &&
 525                 ls .git/objects/pack/*idx >idx-list &&
 526                 test_line_count = 5 idx-list &&
 527                 THIRD_SMALLEST_SIZE=$(test-tool path-utils file-size .git/objects/pack/*pack | sort -n | head -n 3 | tail -n 1) &&
 528                 BATCH_SIZE=$(($THIRD_SMALLEST_SIZE + 1)) &&
 529                 git multi-pack-index repack --batch-size=$BATCH_SIZE &&
 530                 ls .git/objects/pack/*idx >idx-list &&
 531                 test_line_count = 6 idx-list &&
 532                 test-tool read-midx .git/objects | grep idx >midx-list &&
 533                 test_line_count = 6 midx-list
 534         )
 535 '
 536
 537 test_expect_success 'expire removes repacked packs' '
 538         (
 539                 cd dup &&
 540                 ls -al .git/objects/pack/*pack &&
 541                 ls -S .git/objects/pack/*pack | head -n 4 >expect &&
 542                 git multi-pack-index expire &&
 543                 ls -S .git/objects/pack/*pack >actual &&
 544                 test_cmp expect actual &&
 545                 test-tool read-midx .git/objects | grep idx >midx-list &&
 546                 test_line_count = 4 midx-list
 547         )
 548 '
 549
 550 test_expect_success 'expire works when adding new packs' '
 551         (
 552                 cd dup &&
 553                 git pack-objects --revs .git/objects/pack/pack-combined <<-EOF &&
 554                 refs/heads/A
 555                 ^refs/heads/B
 556                 EOF
 557                 git pack-objects --revs .git/objects/pack/pack-combined <<-EOF &&
 558                 refs/heads/B
 559                 ^refs/heads/C
 560                 EOF
 561                 git pack-objects --revs .git/objects/pack/pack-combined <<-EOF &&
 562                 refs/heads/C
 563                 ^refs/heads/D
 564                 EOF
 565                 git multi-pack-index write &&
 566                 git pack-objects --revs .git/objects/pack/a-pack <<-EOF &&
 567                 refs/heads/D
 568                 ^refs/heads/E
 569                 EOF
 570                 git multi-pack-index write &&
 571                 git pack-objects --revs .git/objects/pack/z-pack <<-EOF &&
 572                 refs/heads/E
 573                 EOF
 574                 git multi-pack-index expire &&
 575                 ls .git/objects/pack/ | grep idx >expect &&
 576                 test-tool read-midx .git/objects | grep idx >actual &&
 577                 test_cmp expect actual &&
 578                 git multi-pack-index verify
 579         )
 580 '
 581
 582 test_expect_success 'expire respects .keep files' '
 583         (
 584                 cd dup &&
 585                 git pack-objects --revs .git/objects/pack/pack-all <<-EOF &&
 586                 refs/heads/A
 587                 EOF
 588                 git multi-pack-index write &&
 589                 PACKA=$(ls .git/objects/pack/a-pack*\.pack | sed s/\.pack\$//) &&
 590                 touch $PACKA.keep &&
 591                 git multi-pack-index expire &&
 592                 ls -S .git/objects/pack/a-pack* | grep $PACKA >a-pack-files &&
 593                 test_line_count = 3 a-pack-files &&
 594                 test-tool read-midx .git/objects | grep idx >midx-list &&
 595                 test_line_count = 2 midx-list
 596         )
 597 '
 598
 599 test_expect_success 'repack --batch-size=0 repacks everything' '
 600         (
 601                 cd dup &&
 602                 rm .git/objects/pack/*.keep &&
 603                 ls .git/objects/pack/*idx >idx-list &&
 604                 test_line_count = 2 idx-list &&
 605                 git multi-pack-index repack --batch-size=0 &&
 606                 ls .git/objects/pack/*idx >idx-list &&
 607                 test_line_count = 3 idx-list &&
 608                 test-tool read-midx .git/objects | grep idx >midx-list &&
 609                 test_line_count = 3 midx-list &&
 610                 git multi-pack-index expire &&
 611                 ls -al .git/objects/pack/*idx >idx-list &&
 612                 test_line_count = 1 idx-list &&
 613                 git multi-pack-index repack --batch-size=0 &&
 614                 ls -al .git/objects/pack/*idx >new-idx-list &&
 615                 test_cmp idx-list new-idx-list
 616         )
 617 '
 618
 619 test_done