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