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 $objdir
 137 '
 138
 139 compare_results_with_midx "one v2 pack"
 140
 141 test_expect_success 'corrupt idx reports errors' '
 142         idx=$(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         grep "index unavailable" 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 $objdir
 200 '
 201
 202 compare_results_with_midx "twelve packs"
 203
 204 test_expect_success 'multi-pack-index *.rev cleanup with --object-dir' '
 205         git init repo &&
 206         git clone -s repo alternate &&
 207
 208         test_when_finished "rm -rf repo alternate" &&
 209
 210         (
 211                 cd repo &&
 212                 test_commit base &&
 213                 git repack -d
 214         ) &&
 215
 216         ours="alternate/.git/objects/pack/multi-pack-index-123.rev" &&
 217         theirs="repo/.git/objects/pack/multi-pack-index-abc.rev" &&
 218         touch "$ours" "$theirs" &&
 219
 220         (
 221                 cd alternate &&
 222                 git multi-pack-index --object-dir ../repo/.git/objects write
 223         ) &&
 224
 225         # writing a midx in "repo" should not remove the .rev file in the
 226         # alternate
 227         test_path_is_file repo/.git/objects/pack/multi-pack-index &&
 228         test_path_is_file $ours &&
 229         test_path_is_missing $theirs
 230 '
 231
 232 test_expect_success 'warn on improper hash version' '
 233         git init --object-format=sha1 sha1 &&
 234         (
 235                 cd sha1 &&
 236                 git config core.multiPackIndex true &&
 237                 test_commit 1 &&
 238                 git repack -a &&
 239                 git multi-pack-index write &&
 240                 mv .git/objects/pack/multi-pack-index ../mpi-sha1
 241         ) &&
 242         git init --object-format=sha256 sha256 &&
 243         (
 244                 cd sha256 &&
 245                 git config core.multiPackIndex true &&
 246                 test_commit 1 &&
 247                 git repack -a &&
 248                 git multi-pack-index write &&
 249                 mv .git/objects/pack/multi-pack-index ../mpi-sha256
 250         ) &&
 251         (
 252                 cd sha1 &&
 253                 mv ../mpi-sha256 .git/objects/pack/multi-pack-index &&
 254                 git log -1 2>err &&
 255                 test_i18ngrep "multi-pack-index hash version 2 does not match version 1" err
 256         ) &&
 257         (
 258                 cd sha256 &&
 259                 mv ../mpi-sha1 .git/objects/pack/multi-pack-index &&
 260                 git log -1 2>err &&
 261                 test_i18ngrep "multi-pack-index hash version 1 does not match version 2" err
 262         )
 263 '
 264
 265 test_expect_success 'midx picks objects from preferred pack' '
 266         test_when_finished rm -rf preferred.git &&
 267         git init --bare preferred.git &&
 268         (
 269                 cd preferred.git &&
 270
 271                 a=$(echo "a" | git hash-object -w --stdin) &&
 272                 b=$(echo "b" | git hash-object -w --stdin) &&
 273                 c=$(echo "c" | git hash-object -w --stdin) &&
 274
 275                 # Set up two packs, duplicating the object "B" at different
 276                 # offsets.
 277                 #
 278                 # Note that the "BC" pack (the one we choose as preferred) sorts
 279                 # lexically after the "AB" pack, meaning that omitting the
 280                 # --preferred-pack argument would cause this test to fail (since
 281                 # the MIDX code would select the copy of "b" in the "AB" pack).
 282                 git pack-objects objects/pack/test-AB <<-EOF &&
 283                 $a
 284                 $b
 285                 EOF
 286                 bc=$(git pack-objects objects/pack/test-BC <<-EOF
 287                 $b
 288                 $c
 289                 EOF
 290                 ) &&
 291
 292                 git multi-pack-index --object-dir=objects \
 293                         write --preferred-pack=test-BC-$bc.idx 2>err &&
 294                 test_must_be_empty err &&
 295
 296                 test-tool read-midx --show-objects objects >out &&
 297
 298                 ofs=$(git show-index <objects/pack/test-BC-$bc.idx | grep $b |
 299                         cut -d" " -f1) &&
 300                 printf "%s %s\tobjects/pack/test-BC-%s.pack\n" \
 301                         "$b" "$ofs" "$bc" >expect &&
 302                 grep ^$b out >actual &&
 303
 304                 test_cmp expect actual
 305         )
 306 '
 307
 308 test_expect_success 'preferred packs must be non-empty' '
 309         test_when_finished rm -rf preferred.git &&
 310         git init preferred.git &&
 311         (
 312                 cd preferred.git &&
 313
 314                 test_commit base &&
 315                 git repack -ad &&
 316
 317                 empty="$(git pack-objects $objdir/pack/pack </dev/null)" &&
 318
 319                 test_must_fail git multi-pack-index write \
 320                         --preferred-pack=pack-$empty.pack 2>err &&
 321                 grep "with no objects" err
 322         )
 323 '
 324
 325 test_expect_success 'verify multi-pack-index success' '
 326         git multi-pack-index verify --object-dir=$objdir
 327 '
 328
 329 test_expect_success 'verify progress off for redirected stderr' '
 330         git multi-pack-index verify --object-dir=$objdir 2>err &&
 331         test_line_count = 0 err
 332 '
 333
 334 test_expect_success 'verify force progress on for stderr' '
 335         git multi-pack-index verify --object-dir=$objdir --progress 2>err &&
 336         test_file_not_empty err
 337 '
 338
 339 test_expect_success 'verify with the --no-progress option' '
 340         git multi-pack-index verify --object-dir=$objdir --no-progress 2>err &&
 341         test_line_count = 0 err
 342 '
 343
 344 # usage: corrupt_midx_and_verify <pos> <data> <objdir> <string>
 345 corrupt_midx_and_verify() {
 346         POS=$1 &&
 347         DATA="${2:-\0}" &&
 348         OBJDIR=$3 &&
 349         GREPSTR="$4" &&
 350         COMMAND="$5" &&
 351         if test -z "$COMMAND"
 352         then
 353                 COMMAND="git multi-pack-index verify --object-dir=$OBJDIR"
 354         fi &&
 355         FILE=$OBJDIR/pack/multi-pack-index &&
 356         chmod a+w $FILE &&
 357         test_when_finished mv midx-backup $FILE &&
 358         cp $FILE midx-backup &&
 359         printf "$DATA" | dd of="$FILE" bs=1 seek="$POS" conv=notrunc &&
 360         test_must_fail $COMMAND 2>test_err &&
 361         grep -v "^+" test_err >err &&
 362         test_i18ngrep "$GREPSTR" err
 363 }
 364
 365 test_expect_success 'verify bad signature' '
 366         corrupt_midx_and_verify 0 "\00" $objdir \
 367                 "multi-pack-index signature"
 368 '
 369
 370 NUM_OBJECTS=74
 371 MIDX_BYTE_VERSION=4
 372 MIDX_BYTE_OID_VERSION=5
 373 MIDX_BYTE_CHUNK_COUNT=6
 374 MIDX_HEADER_SIZE=12
 375 MIDX_BYTE_CHUNK_ID=$MIDX_HEADER_SIZE
 376 MIDX_BYTE_CHUNK_OFFSET=$(($MIDX_HEADER_SIZE + 4))
 377 MIDX_NUM_CHUNKS=5
 378 MIDX_CHUNK_LOOKUP_WIDTH=12
 379 MIDX_OFFSET_PACKNAMES=$(($MIDX_HEADER_SIZE + \
 380                          $MIDX_NUM_CHUNKS * $MIDX_CHUNK_LOOKUP_WIDTH))
 381 MIDX_BYTE_PACKNAME_ORDER=$(($MIDX_OFFSET_PACKNAMES + 2))
 382 MIDX_OFFSET_OID_FANOUT=$(($MIDX_OFFSET_PACKNAMES + $(test_oid packnameoff)))
 383 MIDX_OID_FANOUT_WIDTH=4
 384 MIDX_BYTE_OID_FANOUT_ORDER=$((MIDX_OFFSET_OID_FANOUT + 250 * $MIDX_OID_FANOUT_WIDTH + $(test_oid fanoutoff)))
 385 MIDX_OFFSET_OID_LOOKUP=$(($MIDX_OFFSET_OID_FANOUT + 256 * $MIDX_OID_FANOUT_WIDTH))
 386 MIDX_BYTE_OID_LOOKUP=$(($MIDX_OFFSET_OID_LOOKUP + 16 * $HASH_LEN))
 387 MIDX_OFFSET_OBJECT_OFFSETS=$(($MIDX_OFFSET_OID_LOOKUP + $NUM_OBJECTS * $HASH_LEN))
 388 MIDX_OFFSET_WIDTH=8
 389 MIDX_BYTE_PACK_INT_ID=$(($MIDX_OFFSET_OBJECT_OFFSETS + 16 * $MIDX_OFFSET_WIDTH + 2))
 390 MIDX_BYTE_OFFSET=$(($MIDX_OFFSET_OBJECT_OFFSETS + 16 * $MIDX_OFFSET_WIDTH + 6))
 391
 392 test_expect_success 'verify bad version' '
 393         corrupt_midx_and_verify $MIDX_BYTE_VERSION "\00" $objdir \
 394                 "multi-pack-index version"
 395 '
 396
 397 test_expect_success 'verify bad OID version' '
 398         corrupt_midx_and_verify $MIDX_BYTE_OID_VERSION "\03" $objdir \
 399                 "hash version"
 400 '
 401
 402 test_expect_success 'verify truncated chunk count' '
 403         corrupt_midx_and_verify $MIDX_BYTE_CHUNK_COUNT "\01" $objdir \
 404                 "final chunk has non-zero id"
 405 '
 406
 407 test_expect_success 'verify extended chunk count' '
 408         corrupt_midx_and_verify $MIDX_BYTE_CHUNK_COUNT "\07" $objdir \
 409                 "terminating chunk id appears earlier than expected"
 410 '
 411
 412 test_expect_success 'verify missing required chunk' '
 413         corrupt_midx_and_verify $MIDX_BYTE_CHUNK_ID "\01" $objdir \
 414                 "missing required"
 415 '
 416
 417 test_expect_success 'verify invalid chunk offset' '
 418         corrupt_midx_and_verify $MIDX_BYTE_CHUNK_OFFSET "\01" $objdir \
 419                 "improper chunk offset(s)"
 420 '
 421
 422 test_expect_success 'verify packnames out of order' '
 423         corrupt_midx_and_verify $MIDX_BYTE_PACKNAME_ORDER "z" $objdir \
 424                 "pack names out of order"
 425 '
 426
 427 test_expect_success 'verify packnames out of order' '
 428         corrupt_midx_and_verify $MIDX_BYTE_PACKNAME_ORDER "a" $objdir \
 429                 "failed to load pack"
 430 '
 431
 432 test_expect_success 'verify oid fanout out of order' '
 433         corrupt_midx_and_verify $MIDX_BYTE_OID_FANOUT_ORDER "\01" $objdir \
 434                 "oid fanout out of order"
 435 '
 436
 437 test_expect_success 'verify oid lookup out of order' '
 438         corrupt_midx_and_verify $MIDX_BYTE_OID_LOOKUP "\00" $objdir \
 439                 "oid lookup out of order"
 440 '
 441
 442 test_expect_success 'verify incorrect pack-int-id' '
 443         corrupt_midx_and_verify $MIDX_BYTE_PACK_INT_ID "\07" $objdir \
 444                 "bad pack-int-id"
 445 '
 446
 447 test_expect_success 'verify incorrect offset' '
 448         corrupt_midx_and_verify $MIDX_BYTE_OFFSET "\377" $objdir \
 449                 "incorrect object offset"
 450 '
 451
 452 test_expect_success 'git-fsck incorrect offset' '
 453         corrupt_midx_and_verify $MIDX_BYTE_OFFSET "\377" $objdir \
 454                 "incorrect object offset" \
 455                 "git -c core.multipackindex=true fsck"
 456 '
 457
 458 test_expect_success 'corrupt MIDX is not reused' '
 459         corrupt_midx_and_verify $MIDX_BYTE_OFFSET "\377" $objdir \
 460                 "incorrect object offset" &&
 461         git multi-pack-index write 2>err &&
 462         test_i18ngrep checksum.mismatch err &&
 463         git multi-pack-index verify
 464 '
 465
 466 test_expect_success 'verify incorrect checksum' '
 467         pos=$(($(wc -c <$objdir/pack/multi-pack-index) - 1)) &&
 468         corrupt_midx_and_verify $pos "\377" $objdir "incorrect checksum"
 469 '
 470
 471 test_expect_success 'repack progress off for redirected stderr' '
 472         GIT_PROGRESS_DELAY=0 git multi-pack-index --object-dir=$objdir repack 2>err &&
 473         test_line_count = 0 err
 474 '
 475
 476 test_expect_success 'repack force progress on for stderr' '
 477         GIT_PROGRESS_DELAY=0 git multi-pack-index --object-dir=$objdir --progress repack 2>err &&
 478         test_file_not_empty err
 479 '
 480
 481 test_expect_success 'repack with the --no-progress option' '
 482         GIT_PROGRESS_DELAY=0 git multi-pack-index --object-dir=$objdir --no-progress repack 2>err &&
 483         test_line_count = 0 err
 484 '
 485
 486 test_expect_success 'repack removes multi-pack-index when deleting packs' '
 487         test_path_is_file $objdir/pack/multi-pack-index &&
 488         # Set GIT_TEST_MULTI_PACK_INDEX to 0 to avoid writing a new
 489         # multi-pack-index after repacking, but set "core.multiPackIndex" to
 490         # true so that "git repack" can read the existing MIDX.
 491         GIT_TEST_MULTI_PACK_INDEX=0 git -c core.multiPackIndex repack -adf &&
 492         test_path_is_missing $objdir/pack/multi-pack-index
 493 '
 494
 495 test_expect_success 'repack preserves multi-pack-index when creating packs' '
 496         git init preserve &&
 497         test_when_finished "rm -fr preserve" &&
 498         (
 499                 cd preserve &&
 500                 packdir=.git/objects/pack &&
 501                 midx=$packdir/multi-pack-index &&
 502
 503                 test_commit 1 &&
 504                 pack1=$(git pack-objects --all $packdir/pack) &&
 505                 touch $packdir/pack-$pack1.keep &&
 506                 test_commit 2 &&
 507                 pack2=$(git pack-objects --revs $packdir/pack) &&
 508                 touch $packdir/pack-$pack2.keep &&
 509
 510                 git multi-pack-index write &&
 511                 cp $midx $midx.bak &&
 512
 513                 cat >pack-input <<-EOF &&
 514                 HEAD
 515                 ^HEAD~1
 516                 EOF
 517                 test_commit 3 &&
 518                 pack3=$(git pack-objects --revs $packdir/pack <pack-input) &&
 519                 test_commit 4 &&
 520                 pack4=$(git pack-objects --revs $packdir/pack <pack-input) &&
 521
 522                 GIT_TEST_MULTI_PACK_INDEX=0 git -c core.multiPackIndex repack -ad &&
 523                 ls -la $packdir &&
 524                 test_path_is_file $packdir/pack-$pack1.pack &&
 525                 test_path_is_file $packdir/pack-$pack2.pack &&
 526                 test_path_is_missing $packdir/pack-$pack3.pack &&
 527                 test_path_is_missing $packdir/pack-$pack4.pack &&
 528                 test_cmp_bin $midx.bak $midx
 529         )
 530 '
 531
 532 compare_results_with_midx "after repack"
 533
 534 test_expect_success 'multi-pack-index and pack-bitmap' '
 535         GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP=0 \
 536                 git -c repack.writeBitmaps=true repack -ad &&
 537         git multi-pack-index write &&
 538         git rev-list --test-bitmap HEAD
 539 '
 540
 541 test_expect_success 'multi-pack-index and alternates' '
 542         git init --bare alt.git &&
 543         echo $(pwd)/alt.git/objects >.git/objects/info/alternates &&
 544         echo content1 >file1 &&
 545         altblob=$(GIT_DIR=alt.git git hash-object -w file1) &&
 546         git cat-file blob $altblob &&
 547         git rev-list --all
 548 '
 549
 550 compare_results_with_midx "with alternate (local midx)"
 551
 552 test_expect_success 'multi-pack-index in an alternate' '
 553         mv .git/objects/pack/* alt.git/objects/pack &&
 554         test_commit add_local_objects &&
 555         git repack --local &&
 556         git multi-pack-index write &&
 557         midx_read_expect 1 3 4 $objdir &&
 558         git reset --hard HEAD~1 &&
 559         rm -f .git/objects/pack/*
 560 '
 561
 562 compare_results_with_midx "with alternate (remote midx)"
 563
 564 # usage: corrupt_data <file> <pos> [<data>]
 565 corrupt_data () {
 566         file=$1
 567         pos=$2
 568         data="${3:-\0}"
 569         printf "$data" | dd of="$file" bs=1 seek="$pos" conv=notrunc
 570 }
 571
 572 # Force 64-bit offsets by manipulating the idx file.
 573 # This makes the IDX file _incorrect_ so be careful to clean up after!
 574 test_expect_success 'force some 64-bit offsets with pack-objects' '
 575         mkdir objects64 &&
 576         mkdir objects64/pack &&
 577         for i in $(test_seq 1 11)
 578         do
 579                 generate_objects 11
 580         done &&
 581         commit_and_list_objects &&
 582         pack64=$(git pack-objects --index-version=2,0x40 objects64/pack/test-64 <obj-list) &&
 583         idx64=objects64/pack/test-64-$pack64.idx &&
 584         chmod u+w $idx64 &&
 585         corrupt_data $idx64 $(test_oid idxoff) "\02" &&
 586         # objects64 is not a real repository, but can serve as an alternate
 587         # anyway so we can write a MIDX into it
 588         git init repo &&
 589         test_when_finished "rm -fr repo" &&
 590         (
 591                 cd repo &&
 592                 ( cd ../objects64 && pwd ) >.git/objects/info/alternates &&
 593                 midx64=$(git multi-pack-index --object-dir=../objects64 write)
 594         ) &&
 595         midx_read_expect 1 63 5 objects64 " large-offsets"
 596 '
 597
 598 test_expect_success 'verify multi-pack-index with 64-bit offsets' '
 599         git multi-pack-index verify --object-dir=objects64
 600 '
 601
 602 NUM_OBJECTS=63
 603 MIDX_OFFSET_OID_FANOUT=$((MIDX_OFFSET_PACKNAMES + 54))
 604 MIDX_OFFSET_OID_LOOKUP=$((MIDX_OFFSET_OID_FANOUT + 256 * $MIDX_OID_FANOUT_WIDTH))
 605 MIDX_OFFSET_OBJECT_OFFSETS=$(($MIDX_OFFSET_OID_LOOKUP + $NUM_OBJECTS * $HASH_LEN))
 606 MIDX_OFFSET_LARGE_OFFSETS=$(($MIDX_OFFSET_OBJECT_OFFSETS + $NUM_OBJECTS * $MIDX_OFFSET_WIDTH))
 607 MIDX_BYTE_LARGE_OFFSET=$(($MIDX_OFFSET_LARGE_OFFSETS + 3))
 608
 609 test_expect_success 'verify incorrect 64-bit offset' '
 610         corrupt_midx_and_verify $MIDX_BYTE_LARGE_OFFSET "\07" objects64 \
 611                 "incorrect object offset"
 612 '
 613
 614 test_expect_success 'setup expire tests' '
 615         mkdir dup &&
 616         (
 617                 cd dup &&
 618                 git init &&
 619                 test-tool genrandom "data" 4096 >large_file.txt &&
 620                 git update-index --add large_file.txt &&
 621                 for i in $(test_seq 1 20)
 622                 do
 623                         test_commit $i
 624                 done &&
 625                 git branch A HEAD &&
 626                 git branch B HEAD~8 &&
 627                 git branch C HEAD~13 &&
 628                 git branch D HEAD~16 &&
 629                 git branch E HEAD~18 &&
 630                 git pack-objects --revs .git/objects/pack/pack-A <<-EOF &&
 631                 refs/heads/A
 632                 ^refs/heads/B
 633                 EOF
 634                 git pack-objects --revs .git/objects/pack/pack-B <<-EOF &&
 635                 refs/heads/B
 636                 ^refs/heads/C
 637                 EOF
 638                 git pack-objects --revs .git/objects/pack/pack-C <<-EOF &&
 639                 refs/heads/C
 640                 ^refs/heads/D
 641                 EOF
 642                 git pack-objects --revs .git/objects/pack/pack-D <<-EOF &&
 643                 refs/heads/D
 644                 ^refs/heads/E
 645                 EOF
 646                 git pack-objects --revs .git/objects/pack/pack-E <<-EOF &&
 647                 refs/heads/E
 648                 EOF
 649                 git multi-pack-index write &&
 650                 cp -r .git/objects/pack .git/objects/pack-backup
 651         )
 652 '
 653
 654 test_expect_success 'expire does not remove any packs' '
 655         (
 656                 cd dup &&
 657                 ls .git/objects/pack >expect &&
 658                 git multi-pack-index expire &&
 659                 ls .git/objects/pack >actual &&
 660                 test_cmp expect actual
 661         )
 662 '
 663
 664 test_expect_success 'expire progress off for redirected stderr' '
 665         (
 666                 cd dup &&
 667                 git multi-pack-index expire 2>err &&
 668                 test_line_count = 0 err
 669         )
 670 '
 671
 672 test_expect_success 'expire force progress on for stderr' '
 673         (
 674                 cd dup &&
 675                 GIT_PROGRESS_DELAY=0 git multi-pack-index --progress expire 2>err &&
 676                 test_file_not_empty err
 677         )
 678 '
 679
 680 test_expect_success 'expire with the --no-progress option' '
 681         (
 682                 cd dup &&
 683                 GIT_PROGRESS_DELAY=0 git multi-pack-index --no-progress expire 2>err &&
 684                 test_line_count = 0 err
 685         )
 686 '
 687
 688 test_expect_success 'expire removes unreferenced packs' '
 689         (
 690                 cd dup &&
 691                 git pack-objects --revs .git/objects/pack/pack-combined <<-EOF &&
 692                 refs/heads/A
 693                 ^refs/heads/C
 694                 EOF
 695                 git multi-pack-index write &&
 696                 ls .git/objects/pack | grep -v -e pack-[AB] >expect &&
 697                 git multi-pack-index expire &&
 698                 ls .git/objects/pack >actual &&
 699                 test_cmp expect actual &&
 700                 ls .git/objects/pack/ | grep idx >expect-idx &&
 701                 test-tool read-midx .git/objects | grep idx >actual-midx &&
 702                 test_cmp expect-idx actual-midx &&
 703                 git multi-pack-index verify &&
 704                 git fsck
 705         )
 706 '
 707
 708 test_expect_success 'repack with minimum size does not alter existing packs' '
 709         (
 710                 cd dup &&
 711                 rm -rf .git/objects/pack &&
 712                 mv .git/objects/pack-backup .git/objects/pack &&
 713                 test-tool chmtime =-5 .git/objects/pack/pack-D* &&
 714                 test-tool chmtime =-4 .git/objects/pack/pack-C* &&
 715                 test-tool chmtime =-3 .git/objects/pack/pack-B* &&
 716                 test-tool chmtime =-2 .git/objects/pack/pack-A* &&
 717                 ls .git/objects/pack >expect &&
 718                 MINSIZE=$(test-tool path-utils file-size .git/objects/pack/*pack | sort -n | head -n 1) &&
 719                 git multi-pack-index repack --batch-size=$MINSIZE &&
 720                 ls .git/objects/pack >actual &&
 721                 test_cmp expect actual
 722         )
 723 '
 724
 725 test_expect_success 'repack respects repack.packKeptObjects=false' '
 726         test_when_finished rm -f dup/.git/objects/pack/*keep &&
 727         (
 728                 cd dup &&
 729                 ls .git/objects/pack/*idx >idx-list &&
 730                 test_line_count = 5 idx-list &&
 731                 ls .git/objects/pack/*.pack | sed "s/\.pack/.keep/" >keep-list &&
 732                 test_line_count = 5 keep-list &&
 733                 for keep in $(cat keep-list)
 734                 do
 735                         touch $keep || return 1
 736                 done &&
 737                 git multi-pack-index repack --batch-size=0 &&
 738                 ls .git/objects/pack/*idx >idx-list &&
 739                 test_line_count = 5 idx-list &&
 740                 test-tool read-midx .git/objects | grep idx >midx-list &&
 741                 test_line_count = 5 midx-list &&
 742                 THIRD_SMALLEST_SIZE=$(test-tool path-utils file-size .git/objects/pack/*pack | sort -n | sed -n 3p) &&
 743                 BATCH_SIZE=$((THIRD_SMALLEST_SIZE + 1)) &&
 744                 git multi-pack-index repack --batch-size=$BATCH_SIZE &&
 745                 ls .git/objects/pack/*idx >idx-list &&
 746                 test_line_count = 5 idx-list &&
 747                 test-tool read-midx .git/objects | grep idx >midx-list &&
 748                 test_line_count = 5 midx-list
 749         )
 750 '
 751
 752 test_expect_success 'repack creates a new pack' '
 753         (
 754                 cd dup &&
 755                 ls .git/objects/pack/*idx >idx-list &&
 756                 test_line_count = 5 idx-list &&
 757                 THIRD_SMALLEST_SIZE=$(test-tool path-utils file-size .git/objects/pack/*pack | sort -n | head -n 3 | tail -n 1) &&
 758                 BATCH_SIZE=$(($THIRD_SMALLEST_SIZE + 1)) &&
 759                 git multi-pack-index repack --batch-size=$BATCH_SIZE &&
 760                 ls .git/objects/pack/*idx >idx-list &&
 761                 test_line_count = 6 idx-list &&
 762                 test-tool read-midx .git/objects | grep idx >midx-list &&
 763                 test_line_count = 6 midx-list
 764         )
 765 '
 766
 767 test_expect_success 'expire removes repacked packs' '
 768         (
 769                 cd dup &&
 770                 ls -al .git/objects/pack/*pack &&
 771                 ls -S .git/objects/pack/*pack | head -n 4 >expect &&
 772                 git multi-pack-index expire &&
 773                 ls -S .git/objects/pack/*pack >actual &&
 774                 test_cmp expect actual &&
 775                 test-tool read-midx .git/objects | grep idx >midx-list &&
 776                 test_line_count = 4 midx-list
 777         )
 778 '
 779
 780 test_expect_success 'expire works when adding new packs' '
 781         (
 782                 cd dup &&
 783                 git pack-objects --revs .git/objects/pack/pack-combined <<-EOF &&
 784                 refs/heads/A
 785                 ^refs/heads/B
 786                 EOF
 787                 git pack-objects --revs .git/objects/pack/pack-combined <<-EOF &&
 788                 refs/heads/B
 789                 ^refs/heads/C
 790                 EOF
 791                 git pack-objects --revs .git/objects/pack/pack-combined <<-EOF &&
 792                 refs/heads/C
 793                 ^refs/heads/D
 794                 EOF
 795                 git multi-pack-index write &&
 796                 git pack-objects --revs .git/objects/pack/a-pack <<-EOF &&
 797                 refs/heads/D
 798                 ^refs/heads/E
 799                 EOF
 800                 git multi-pack-index write &&
 801                 git pack-objects --revs .git/objects/pack/z-pack <<-EOF &&
 802                 refs/heads/E
 803                 EOF
 804                 git multi-pack-index expire &&
 805                 ls .git/objects/pack/ | grep idx >expect &&
 806                 test-tool read-midx .git/objects | grep idx >actual &&
 807                 test_cmp expect actual &&
 808                 git multi-pack-index verify
 809         )
 810 '
 811
 812 test_expect_success 'expire respects .keep files' '
 813         (
 814                 cd dup &&
 815                 git pack-objects --revs .git/objects/pack/pack-all <<-EOF &&
 816                 refs/heads/A
 817                 EOF
 818                 git multi-pack-index write &&
 819                 PACKA=$(ls .git/objects/pack/a-pack*\.pack | sed s/\.pack\$//) &&
 820                 touch $PACKA.keep &&
 821                 git multi-pack-index expire &&
 822                 test_path_is_file $PACKA.idx &&
 823                 test_path_is_file $PACKA.keep &&
 824                 test_path_is_file $PACKA.pack &&
 825                 test-tool read-midx .git/objects | grep idx >midx-list &&
 826                 test_line_count = 2 midx-list
 827         )
 828 '
 829
 830 test_expect_success 'repack --batch-size=0 repacks everything' '
 831         cp -r dup dup2 &&
 832         (
 833                 cd dup &&
 834                 rm .git/objects/pack/*.keep &&
 835                 ls .git/objects/pack/*idx >idx-list &&
 836                 test_line_count = 2 idx-list &&
 837                 git multi-pack-index repack --batch-size=0 &&
 838                 ls .git/objects/pack/*idx >idx-list &&
 839                 test_line_count = 3 idx-list &&
 840                 test-tool read-midx .git/objects | grep idx >midx-list &&
 841                 test_line_count = 3 midx-list &&
 842                 git multi-pack-index expire &&
 843                 ls -al .git/objects/pack/*idx >idx-list &&
 844                 test_line_count = 1 idx-list &&
 845                 git multi-pack-index repack --batch-size=0 &&
 846                 ls -al .git/objects/pack/*idx >new-idx-list &&
 847                 test_cmp idx-list new-idx-list
 848         )
 849 '
 850
 851 test_expect_success 'repack --batch-size=<large> repacks everything' '
 852         (
 853                 cd dup2 &&
 854                 rm .git/objects/pack/*.keep &&
 855                 ls .git/objects/pack/*idx >idx-list &&
 856                 test_line_count = 2 idx-list &&
 857                 git multi-pack-index repack --batch-size=2000000 &&
 858                 ls .git/objects/pack/*idx >idx-list &&
 859                 test_line_count = 3 idx-list &&
 860                 test-tool read-midx .git/objects | grep idx >midx-list &&
 861                 test_line_count = 3 midx-list &&
 862                 git multi-pack-index expire &&
 863                 ls -al .git/objects/pack/*idx >idx-list &&
 864                 test_line_count = 1 idx-list
 865         )
 866 '
 867
 868 test_expect_success 'load reverse index when missing .idx, .pack' '
 869         git init repo &&
 870         test_when_finished "rm -fr repo" &&
 871         (
 872                 cd repo &&
 873
 874                 git config core.multiPackIndex true &&
 875
 876                 test_commit base &&
 877                 git repack -ad &&
 878                 git multi-pack-index write &&
 879
 880                 git rev-parse HEAD >tip &&
 881                 pack=$(ls .git/objects/pack/pack-*.pack) &&
 882                 idx=$(ls .git/objects/pack/pack-*.idx) &&
 883
 884                 mv $idx $idx.bak &&
 885                 git cat-file --batch-check="%(objectsize:disk)" <tip &&
 886
 887                 mv $idx.bak $idx &&
 888
 889                 mv $pack $pack.bak &&
 890                 git cat-file --batch-check="%(objectsize:disk)" <tip
 891         )
 892 '
 893
 894 test_expect_success 'usage shown without sub-command' '
 895         test_expect_code 129 git multi-pack-index 2>err &&
 896         ! test_i18ngrep "unrecognized subcommand" err
 897 '
 898
 899 test_expect_success 'complains when run outside of a repository' '
 900         nongit test_must_fail git multi-pack-index write 2>err &&
 901         grep "not a git repository" err
 902 '
 903
 904 test_done