t/t5319-multi-pack-index.sh

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