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 $object || return 1
 177          done <obj-list
 178     } >current &&
 179     diff expect current'
 180
 181 unset GIT_OBJECT_DIRECTORY
 182
 183 test_expect_success \
 184     'verify pack' \
 185     'git verify-pack    test-1-${packname_1}.idx \
 186                         test-2-${packname_2}.idx \
 187                         test-3-${packname_3}.idx'
 188
 189 test_expect_success \
 190     'verify pack -v' \
 191     'git verify-pack -v test-1-${packname_1}.idx \
 192                         test-2-${packname_2}.idx \
 193                         test-3-${packname_3}.idx'
 194
 195 test_expect_success \
 196     'verify-pack catches mismatched .idx and .pack files' \
 197     'cat test-1-${packname_1}.idx >test-3.idx &&
 198      cat test-2-${packname_2}.pack >test-3.pack &&
 199      if git verify-pack test-3.idx
 200      then false
 201      else :;
 202      fi'
 203
 204 test_expect_success \
 205     'verify-pack catches a corrupted pack signature' \
 206     'cat test-1-${packname_1}.pack >test-3.pack &&
 207      dd if=/dev/zero of=test-3.pack count=1 bs=1 conv=notrunc seek=2 &&
 208      if git verify-pack test-3.idx
 209      then false
 210      else :;
 211      fi'
 212
 213 test_expect_success \
 214     'verify-pack catches a corrupted pack version' \
 215     'cat test-1-${packname_1}.pack >test-3.pack &&
 216      dd if=/dev/zero of=test-3.pack count=1 bs=1 conv=notrunc seek=7 &&
 217      if git verify-pack test-3.idx
 218      then false
 219      else :;
 220      fi'
 221
 222 test_expect_success \
 223     'verify-pack catches a corrupted type/size of the 1st packed object data' \
 224     'cat test-1-${packname_1}.pack >test-3.pack &&
 225      dd if=/dev/zero of=test-3.pack count=1 bs=1 conv=notrunc seek=12 &&
 226      if git verify-pack test-3.idx
 227      then false
 228      else :;
 229      fi'
 230
 231 test_expect_success \
 232     'verify-pack catches a corrupted sum of the index file itself' \
 233     'l=`wc -c <test-3.idx` &&
 234      l=`expr $l - 20` &&
 235      cat test-1-${packname_1}.pack >test-3.pack &&
 236      dd if=/dev/zero of=test-3.idx count=20 bs=1 conv=notrunc seek=$l &&
 237      if git verify-pack test-3.pack
 238      then false
 239      else :;
 240      fi'
 241
 242 test_expect_success \
 243     'build pack index for an existing pack' \
 244     'cat test-1-${packname_1}.pack >test-3.pack &&
 245      git index-pack -o tmp.idx test-3.pack &&
 246      cmp tmp.idx test-1-${packname_1}.idx &&
 247
 248      git index-pack test-3.pack &&
 249      cmp test-3.idx test-1-${packname_1}.idx &&
 250
 251      cat test-2-${packname_2}.pack >test-3.pack &&
 252      git index-pack -o tmp.idx test-2-${packname_2}.pack &&
 253      cmp tmp.idx test-2-${packname_2}.idx &&
 254
 255      git index-pack test-3.pack &&
 256      cmp test-3.idx test-2-${packname_2}.idx &&
 257
 258      cat test-3-${packname_3}.pack >test-3.pack &&
 259      git index-pack -o tmp.idx test-3-${packname_3}.pack &&
 260      cmp tmp.idx test-3-${packname_3}.idx &&
 261
 262      git index-pack test-3.pack &&
 263      cmp test-3.idx test-3-${packname_3}.idx &&
 264
 265      :'
 266
 267 test_expect_success \
 268     'fake a SHA1 hash collision' \
 269     'test -f    .git/objects/c8/2de19312b6c3695c0c18f70709a6c535682a67 &&
 270      cp -f      .git/objects/9d/235ed07cd19811a6ceb342de82f190e49c9f68 \
 271                 .git/objects/c8/2de19312b6c3695c0c18f70709a6c535682a67'
 272
 273 test_expect_success \
 274     'make sure index-pack detects the SHA1 collision' \
 275     'test_must_fail git index-pack -o bad.idx test-3.pack'
 276
 277 test_expect_success \
 278     'honor pack.packSizeLimit' \
 279     'git config pack.packSizeLimit 200 &&
 280      packname_4=$(git pack-objects test-4 <obj-list) &&
 281      test 3 = $(ls test-4-*.pack | wc -l)'
 282
 283 test_expect_success 'unpacking with --strict' '
 284
 285         git config --unset pack.packsizelimit &&
 286         for j in a b c d e f g
 287         do
 288                 for i in 0 1 2 3 4 5 6 7 8 9
 289                 do
 290                         o=$(echo $j$i | git hash-object -w --stdin) &&
 291                         echo "100644 $o 0 $j$i"
 292                 done
 293         done >LIST &&
 294         rm -f .git/index &&
 295         git update-index --index-info <LIST &&
 296         LIST=$(git write-tree) &&
 297         rm -f .git/index &&
 298         head -n 10 LIST | git update-index --index-info &&
 299         LI=$(git write-tree) &&
 300         rm -f .git/index &&
 301         tail -n 10 LIST | git update-index --index-info &&
 302         ST=$(git write-tree) &&
 303         PACK5=$( git rev-list --objects "$LIST" "$LI" "$ST" | \
 304                 git pack-objects test-5 ) &&
 305         PACK6=$( (
 306                         echo "$LIST"
 307                         echo "$LI"
 308                         echo "$ST"
 309                  ) | git pack-objects test-6 ) &&
 310         test_create_repo test-5 &&
 311         (
 312                 cd test-5 &&
 313                 git unpack-objects --strict <../test-5-$PACK5.pack &&
 314                 git ls-tree -r $LIST &&
 315                 git ls-tree -r $LI &&
 316                 git ls-tree -r $ST
 317         ) &&
 318         test_create_repo test-6 &&
 319         (
 320                 # tree-only into empty repo -- many unreachables
 321                 cd test-6 &&
 322                 test_must_fail git unpack-objects --strict <../test-6-$PACK6.pack
 323         ) &&
 324         (
 325                 # already populated -- no unreachables
 326                 cd test-5 &&
 327                 git unpack-objects --strict <../test-6-$PACK6.pack
 328         )
 329 '
 330
 331 test_expect_success 'index-pack with --strict' '
 332
 333         for j in a b c d e f g
 334         do
 335                 for i in 0 1 2 3 4 5 6 7 8 9
 336                 do
 337                         o=$(echo $j$i | git hash-object -w --stdin) &&
 338                         echo "100644 $o 0 $j$i"
 339                 done
 340         done >LIST &&
 341         rm -f .git/index &&
 342         git update-index --index-info <LIST &&
 343         LIST=$(git write-tree) &&
 344         rm -f .git/index &&
 345         head -n 10 LIST | git update-index --index-info &&
 346         LI=$(git write-tree) &&
 347         rm -f .git/index &&
 348         tail -n 10 LIST | git update-index --index-info &&
 349         ST=$(git write-tree) &&
 350         PACK5=$( git rev-list --objects "$LIST" "$LI" "$ST" | \
 351                 git pack-objects test-5 ) &&
 352         PACK6=$( (
 353                         echo "$LIST"
 354                         echo "$LI"
 355                         echo "$ST"
 356                  ) | git pack-objects test-6 ) &&
 357         test_create_repo test-7 &&
 358         (
 359                 cd test-7 &&
 360                 git index-pack --strict --stdin <../test-5-$PACK5.pack &&
 361                 git ls-tree -r $LIST &&
 362                 git ls-tree -r $LI &&
 363                 git ls-tree -r $ST
 364         ) &&
 365         test_create_repo test-8 &&
 366         (
 367                 # tree-only into empty repo -- many unreachables
 368                 cd test-8 &&
 369                 test_must_fail git index-pack --strict --stdin <../test-6-$PACK6.pack
 370         ) &&
 371         (
 372                 # already populated -- no unreachables
 373                 cd test-7 &&
 374                 git index-pack --strict --stdin <../test-6-$PACK6.pack
 375         )
 376 '
 377
 378 test_expect_success 'tolerate absurdly small packsizelimit' '
 379         git config pack.packSizeLimit 2 &&
 380         packname_9=$(git pack-objects test-9 <obj-list) &&
 381         test $(wc -l <obj-list) = $(ls test-9-*.pack | wc -l)
 382 '
 383
 384 test_done