t/t5300-pack-object.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2005 Junio C Hamano
   4 #
   5
   6 test_description='git pack-object
   7
   8 '
   9 . ./test-lib.sh
  10
  11 TRASH=`pwd`
  12
  13 test_expect_success \
  14     'setup' \
  15     'rm -f .git/index*
  16      for i in a b c
  17      do
  18              dd if=/dev/zero bs=4k count=1 | perl -pe "y/\\000/$i/" >$i &&
  19              git update-index --add $i || return 1
  20      done &&
  21      cat c >d && echo foo >>d && git update-index --add d &&
  22      tree=`git write-tree` &&
  23      commit=`git commit-tree $tree </dev/null` && {
  24          echo $tree &&
  25          echo $commit &&
  26          git ls-tree $tree | sed -e "s/.* \\([0-9a-f]*\\)       .*/\\1/"
  27      } >obj-list && {
  28          git diff-tree --root -p $commit &&
  29          while read object
  30          do
  31             t=`git cat-file -t $object` &&
  32             git cat-file $t $object || return 1
  33          done <obj-list
  34      } >expect'
  35
  36 test_expect_success \
  37     'pack without delta' \
  38     'packname_1=$(git pack-objects --window=0 test-1 <obj-list)'
  39
  40 rm -fr .git2
  41 mkdir .git2
  42
  43 test_expect_success \
  44     'unpack without delta' \
  45     "GIT_OBJECT_DIRECTORY=.git2/objects &&
  46      export GIT_OBJECT_DIRECTORY &&
  47      git init &&
  48      git unpack-objects -n <test-1-${packname_1}.pack &&
  49      git unpack-objects <test-1-${packname_1}.pack"
  50
  51 unset GIT_OBJECT_DIRECTORY
  52 cd "$TRASH/.git2"
  53
  54 test_expect_success \
  55     'check unpack without delta' \
  56     '(cd ../.git && find objects -type f -print) |
  57      while read path
  58      do
  59          cmp $path ../.git/$path || {
  60              echo $path differs.
  61              return 1
  62          }
  63      done'
  64 cd "$TRASH"
  65
  66 test_expect_success \
  67     'pack with REF_DELTA' \
  68     'pwd &&
  69      packname_2=$(git pack-objects test-2 <obj-list)'
  70
  71 rm -fr .git2
  72 mkdir .git2
  73
  74 test_expect_success \
  75     'unpack with REF_DELTA' \
  76     'GIT_OBJECT_DIRECTORY=.git2/objects &&
  77      export GIT_OBJECT_DIRECTORY &&
  78      git init &&
  79      git unpack-objects -n <test-2-${packname_2}.pack &&
  80      git unpack-objects <test-2-${packname_2}.pack'
  81
  82 unset GIT_OBJECT_DIRECTORY
  83 cd "$TRASH/.git2"
  84 test_expect_success \
  85     'check unpack with REF_DELTA' \
  86     '(cd ../.git && find objects -type f -print) |
  87      while read path
  88      do
  89          cmp $path ../.git/$path || {
  90              echo $path differs.
  91              return 1
  92          }
  93      done'
  94 cd "$TRASH"
  95
  96 test_expect_success \
  97     'pack with OFS_DELTA' \
  98     'pwd &&
  99      packname_3=$(git pack-objects --delta-base-offset test-3 <obj-list)'
 100
 101 rm -fr .git2
 102 mkdir .git2
 103
 104 test_expect_success \
 105     'unpack with OFS_DELTA' \
 106     'GIT_OBJECT_DIRECTORY=.git2/objects &&
 107      export GIT_OBJECT_DIRECTORY &&
 108      git init &&
 109      git unpack-objects -n <test-3-${packname_3}.pack &&
 110      git unpack-objects <test-3-${packname_3}.pack'
 111
 112 unset GIT_OBJECT_DIRECTORY
 113 cd "$TRASH/.git2"
 114 test_expect_success \
 115     'check unpack with OFS_DELTA' \
 116     '(cd ../.git && find objects -type f -print) |
 117      while read path
 118      do
 119          cmp $path ../.git/$path || {
 120              echo $path differs.
 121              return 1
 122          }
 123      done'
 124 cd "$TRASH"
 125
 126 test_expect_success 'compare delta flavors' '
 127         perl -e '\''
 128                 defined($_ = -s $_) or die for @ARGV;
 129                 exit 1 if $ARGV[0] <= $ARGV[1];
 130         '\'' test-2-$packname_2.pack test-3-$packname_3.pack
 131 '
 132
 133 rm -fr .git2
 134 mkdir .git2
 135
 136 test_expect_success \
 137     'use packed objects' \
 138     'GIT_OBJECT_DIRECTORY=.git2/objects &&
 139      export GIT_OBJECT_DIRECTORY &&
 140      git init &&
 141      cp test-1-${packname_1}.pack test-1-${packname_1}.idx .git2/objects/pack && {
 142          git diff-tree --root -p $commit &&
 143          while read object
 144          do
 145             t=`git cat-file -t $object` &&
 146             git cat-file $t $object || return 1
 147          done <obj-list
 148     } >current &&
 149     diff expect current'
 150
 151 test_expect_success \
 152     'use packed deltified (REF_DELTA) objects' \
 153     'GIT_OBJECT_DIRECTORY=.git2/objects &&
 154      export GIT_OBJECT_DIRECTORY &&
 155      rm -f .git2/objects/pack/test-* &&
 156      cp test-2-${packname_2}.pack test-2-${packname_2}.idx .git2/objects/pack && {
 157          git diff-tree --root -p $commit &&
 158          while read object
 159          do
 160             t=`git cat-file -t $object` &&
 161             git cat-file $t $object || return 1
 162          done <obj-list
 163     } >current &&
 164     diff expect current'
 165
 166 test_expect_success \
 167     'use packed deltified (OFS_DELTA) objects' \
 168     'GIT_OBJECT_DIRECTORY=.git2/objects &&
 169      export GIT_OBJECT_DIRECTORY &&
 170      rm -f .git2/objects/pack/test-* &&
 171      cp test-3-${packname_3}.pack test-3-${packname_3}.idx .git2/objects/pack && {
 172          git diff-tree --root -p $commit &&
 173          while read object
 174          do
 175             t=`git cat-file -t $object` &&
 176             git cat-file $t $object || return 1
 177          done <obj-list
 178     } >current &&
 179     diff expect current'
 180
 181 unset GIT_OBJECT_DIRECTORY
 182
 183 test_expect_success 'survive missing objects/pack directory' '
 184         (
 185                 rm -fr missing-pack &&
 186                 mkdir missing-pack &&
 187                 cd missing-pack &&
 188                 git init &&
 189                 GOP=.git/objects/pack
 190                 rm -fr $GOP &&
 191                 git index-pack --stdin --keep=test <../test-3-${packname_3}.pack &&
 192                 test -f $GOP/pack-${packname_3}.pack &&
 193                 test_cmp $GOP/pack-${packname_3}.pack ../test-3-${packname_3}.pack &&
 194                 test -f $GOP/pack-${packname_3}.idx &&
 195                 test_cmp $GOP/pack-${packname_3}.idx ../test-3-${packname_3}.idx &&
 196                 test -f $GOP/pack-${packname_3}.keep
 197         )
 198 '
 199
 200 test_expect_success \
 201     'verify pack' \
 202     'git verify-pack    test-1-${packname_1}.idx \
 203                         test-2-${packname_2}.idx \
 204                         test-3-${packname_3}.idx'
 205
 206 test_expect_success \
 207     'verify pack -v' \
 208     'git verify-pack -v test-1-${packname_1}.idx \
 209                         test-2-${packname_2}.idx \
 210                         test-3-${packname_3}.idx'
 211
 212 test_expect_success \
 213     'verify-pack catches mismatched .idx and .pack files' \
 214     'cat test-1-${packname_1}.idx >test-3.idx &&
 215      cat test-2-${packname_2}.pack >test-3.pack &&
 216      if git verify-pack test-3.idx
 217      then false
 218      else :;
 219      fi'
 220
 221 test_expect_success \
 222     'verify-pack catches a corrupted pack signature' \
 223     'cat test-1-${packname_1}.pack >test-3.pack &&
 224      dd if=/dev/zero of=test-3.pack count=1 bs=1 conv=notrunc seek=2 &&
 225      if git verify-pack test-3.idx
 226      then false
 227      else :;
 228      fi'
 229
 230 test_expect_success \
 231     'verify-pack catches a corrupted pack version' \
 232     'cat test-1-${packname_1}.pack >test-3.pack &&
 233      dd if=/dev/zero of=test-3.pack count=1 bs=1 conv=notrunc seek=7 &&
 234      if git verify-pack test-3.idx
 235      then false
 236      else :;
 237      fi'
 238
 239 test_expect_success \
 240     'verify-pack catches a corrupted type/size of the 1st packed object data' \
 241     'cat test-1-${packname_1}.pack >test-3.pack &&
 242      dd if=/dev/zero of=test-3.pack count=1 bs=1 conv=notrunc seek=12 &&
 243      if git verify-pack test-3.idx
 244      then false
 245      else :;
 246      fi'
 247
 248 test_expect_success \
 249     'verify-pack catches a corrupted sum of the index file itself' \
 250     'l=`wc -c <test-3.idx` &&
 251      l=`expr $l - 20` &&
 252      cat test-1-${packname_1}.pack >test-3.pack &&
 253      dd if=/dev/zero of=test-3.idx count=20 bs=1 conv=notrunc seek=$l &&
 254      if git verify-pack test-3.pack
 255      then false
 256      else :;
 257      fi'
 258
 259 test_expect_success \
 260     'build pack index for an existing pack' \
 261     'cat test-1-${packname_1}.pack >test-3.pack &&
 262      git index-pack -o tmp.idx test-3.pack &&
 263      cmp tmp.idx test-1-${packname_1}.idx &&
 264
 265      git index-pack test-3.pack &&
 266      cmp test-3.idx test-1-${packname_1}.idx &&
 267
 268      cat test-2-${packname_2}.pack >test-3.pack &&
 269      git index-pack -o tmp.idx test-2-${packname_2}.pack &&
 270      cmp tmp.idx test-2-${packname_2}.idx &&
 271
 272      git index-pack test-3.pack &&
 273      cmp test-3.idx test-2-${packname_2}.idx &&
 274
 275      cat test-3-${packname_3}.pack >test-3.pack &&
 276      git index-pack -o tmp.idx test-3-${packname_3}.pack &&
 277      cmp tmp.idx test-3-${packname_3}.idx &&
 278
 279      git index-pack test-3.pack &&
 280      cmp test-3.idx test-3-${packname_3}.idx &&
 281
 282      :'
 283
 284 test_expect_success \
 285     'fake a SHA1 hash collision' \
 286     'test -f    .git/objects/c8/2de19312b6c3695c0c18f70709a6c535682a67 &&
 287      cp -f      .git/objects/9d/235ed07cd19811a6ceb342de82f190e49c9f68 \
 288                 .git/objects/c8/2de19312b6c3695c0c18f70709a6c535682a67'
 289
 290 test_expect_success \
 291     'make sure index-pack detects the SHA1 collision' \
 292     'test_must_fail git index-pack -o bad.idx test-3.pack'
 293
 294 test_expect_success \
 295     'honor pack.packSizeLimit' \
 296     'git config pack.packSizeLimit 200 &&
 297      packname_4=$(git pack-objects test-4 <obj-list) &&
 298      test 3 = $(ls test-4-*.pack | wc -l)'
 299
 300 test_expect_success 'unpacking with --strict' '
 301
 302         git config --unset pack.packsizelimit &&
 303         for j in a b c d e f g
 304         do
 305                 for i in 0 1 2 3 4 5 6 7 8 9
 306                 do
 307                         o=$(echo $j$i | git hash-object -w --stdin) &&
 308                         echo "100644 $o 0 $j$i"
 309                 done
 310         done >LIST &&
 311         rm -f .git/index &&
 312         git update-index --index-info <LIST &&
 313         LIST=$(git write-tree) &&
 314         rm -f .git/index &&
 315         head -n 10 LIST | git update-index --index-info &&
 316         LI=$(git write-tree) &&
 317         rm -f .git/index &&
 318         tail -n 10 LIST | git update-index --index-info &&
 319         ST=$(git write-tree) &&
 320         PACK5=$( git rev-list --objects "$LIST" "$LI" "$ST" | \
 321                 git pack-objects test-5 ) &&
 322         PACK6=$( (
 323                         echo "$LIST"
 324                         echo "$LI"
 325                         echo "$ST"
 326                  ) | git pack-objects test-6 ) &&
 327         test_create_repo test-5 &&
 328         (
 329                 cd test-5 &&
 330                 git unpack-objects --strict <../test-5-$PACK5.pack &&
 331                 git ls-tree -r $LIST &&
 332                 git ls-tree -r $LI &&
 333                 git ls-tree -r $ST
 334         ) &&
 335         test_create_repo test-6 &&
 336         (
 337                 # tree-only into empty repo -- many unreachables
 338                 cd test-6 &&
 339                 test_must_fail git unpack-objects --strict <../test-6-$PACK6.pack
 340         ) &&
 341         (
 342                 # already populated -- no unreachables
 343                 cd test-5 &&
 344                 git unpack-objects --strict <../test-6-$PACK6.pack
 345         )
 346 '
 347
 348 test_expect_success 'index-pack with --strict' '
 349
 350         for j in a b c d e f g
 351         do
 352                 for i in 0 1 2 3 4 5 6 7 8 9
 353                 do
 354                         o=$(echo $j$i | git hash-object -w --stdin) &&
 355                         echo "100644 $o 0 $j$i"
 356                 done
 357         done >LIST &&
 358         rm -f .git/index &&
 359         git update-index --index-info <LIST &&
 360         LIST=$(git write-tree) &&
 361         rm -f .git/index &&
 362         head -n 10 LIST | git update-index --index-info &&
 363         LI=$(git write-tree) &&
 364         rm -f .git/index &&
 365         tail -n 10 LIST | git update-index --index-info &&
 366         ST=$(git write-tree) &&
 367         PACK5=$( git rev-list --objects "$LIST" "$LI" "$ST" | \
 368                 git pack-objects test-5 ) &&
 369         PACK6=$( (
 370                         echo "$LIST"
 371                         echo "$LI"
 372                         echo "$ST"
 373                  ) | git pack-objects test-6 ) &&
 374         test_create_repo test-7 &&
 375         (
 376                 cd test-7 &&
 377                 git index-pack --strict --stdin <../test-5-$PACK5.pack &&
 378                 git ls-tree -r $LIST &&
 379                 git ls-tree -r $LI &&
 380                 git ls-tree -r $ST
 381         ) &&
 382         test_create_repo test-8 &&
 383         (
 384                 # tree-only into empty repo -- many unreachables
 385                 cd test-8 &&
 386                 test_must_fail git index-pack --strict --stdin <../test-6-$PACK6.pack
 387         ) &&
 388         (
 389                 # already populated -- no unreachables
 390                 cd test-7 &&
 391                 git index-pack --strict --stdin <../test-6-$PACK6.pack
 392         )
 393 '
 394
 395 test_expect_success 'tolerate absurdly small packsizelimit' '
 396         git config pack.packSizeLimit 2 &&
 397         packname_9=$(git pack-objects test-9 <obj-list) &&
 398         test $(wc -l <obj-list) = $(ls test-9-*.pack | wc -l)
 399 '
 400
 401 test_done