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