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 | tr "\\0" $i >$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 \
 127     'compare delta flavors' \
 128     'size_2=`stat -c "%s" test-2-${packname_2}.pack` &&
 129      size_3=`stat -c "%s" test-3-${packname_3}.pack` &&
 130      test $size_2 -gt $size_3'
 131
 132 rm -fr .git2
 133 mkdir .git2
 134
 135 test_expect_success \
 136     'use packed objects' \
 137     'GIT_OBJECT_DIRECTORY=.git2/objects &&
 138      export GIT_OBJECT_DIRECTORY &&
 139      git-init &&
 140      cp test-1-${packname_1}.pack test-1-${packname_1}.idx .git2/objects/pack && {
 141          git-diff-tree --root -p $commit &&
 142          while read object
 143          do
 144             t=`git-cat-file -t $object` &&
 145             git-cat-file $t $object || return 1
 146          done <obj-list
 147     } >current &&
 148     diff expect current'
 149
 150 test_expect_success \
 151     'use packed deltified (REF_DELTA) objects' \
 152     'GIT_OBJECT_DIRECTORY=.git2/objects &&
 153      export GIT_OBJECT_DIRECTORY &&
 154      rm .git2/objects/pack/test-* &&
 155      cp test-2-${packname_2}.pack test-2-${packname_2}.idx .git2/objects/pack && {
 156          git-diff-tree --root -p $commit &&
 157          while read object
 158          do
 159             t=`git-cat-file -t $object` &&
 160             git-cat-file $t $object || return 1
 161          done <obj-list
 162     } >current &&
 163     diff expect current'
 164
 165 test_expect_success \
 166     'use packed deltified (OFS_DELTA) objects' \
 167     'GIT_OBJECT_DIRECTORY=.git2/objects &&
 168      export GIT_OBJECT_DIRECTORY &&
 169      rm .git2/objects/pack/test-* &&
 170      cp test-3-${packname_3}.pack test-3-${packname_3}.idx .git2/objects/pack && {
 171          git-diff-tree --root -p $commit &&
 172          while read object
 173          do
 174             t=`git-cat-file -t $object` &&
 175             git-cat-file $t $object || return 1
 176          done <obj-list
 177     } >current &&
 178     diff expect current'
 179
 180 unset GIT_OBJECT_DIRECTORY
 181
 182 test_expect_success \
 183     'verify pack' \
 184     'git-verify-pack    test-1-${packname_1}.idx \
 185                         test-2-${packname_2}.idx \
 186                         test-3-${packname_3}.idx'
 187
 188 test_expect_success \
 189     'corrupt a pack and see if verify catches' \
 190     'cp test-1-${packname_1}.idx test-3.idx &&
 191      cp test-2-${packname_2}.pack test-3.pack &&
 192      if git-verify-pack test-3.idx
 193      then false
 194      else :;
 195      fi &&
 196
 197      : PACK_SIGNATURE &&
 198      cp test-1-${packname_1}.pack test-3.pack &&
 199      dd if=/dev/zero of=test-3.pack count=1 bs=1 conv=notrunc seek=2 &&
 200      if git-verify-pack test-3.idx
 201      then false
 202      else :;
 203      fi &&
 204
 205      : PACK_VERSION &&
 206      cp test-1-${packname_1}.pack test-3.pack &&
 207      dd if=/dev/zero of=test-3.pack count=1 bs=1 conv=notrunc seek=7 &&
 208      if git-verify-pack test-3.idx
 209      then false
 210      else :;
 211      fi &&
 212
 213      : TYPE/SIZE byte of the first packed object data &&
 214      cp test-1-${packname_1}.pack test-3.pack &&
 215      dd if=/dev/zero of=test-3.pack count=1 bs=1 conv=notrunc seek=12 &&
 216      if git-verify-pack test-3.idx
 217      then false
 218      else :;
 219      fi &&
 220
 221      : sum of the index file itself &&
 222      l=`wc -c <test-3.idx` &&
 223      l=`expr $l - 20` &&
 224      cp test-1-${packname_1}.pack test-3.pack &&
 225      dd if=/dev/zero of=test-3.idx count=20 bs=1 conv=notrunc seek=$l &&
 226      if git-verify-pack test-3.pack
 227      then false
 228      else :;
 229      fi &&
 230
 231      :'
 232
 233 test_expect_success \
 234     'build pack index for an existing pack' \
 235     'cp test-1-${packname_1}.pack test-3.pack &&
 236      git-index-pack -o tmp.idx test-3.pack &&
 237      cmp tmp.idx test-1-${packname_1}.idx &&
 238
 239      git-index-pack test-3.pack &&
 240      cmp test-3.idx test-1-${packname_1}.idx &&
 241
 242      cp test-2-${packname_2}.pack test-3.pack &&
 243      git-index-pack -o tmp.idx test-2-${packname_2}.pack &&
 244      cmp tmp.idx test-2-${packname_2}.idx &&
 245
 246      git-index-pack test-3.pack &&
 247      cmp test-3.idx test-2-${packname_2}.idx &&
 248
 249      cp test-3-${packname_3}.pack test-3.pack &&
 250      git-index-pack -o tmp.idx test-3-${packname_3}.pack &&
 251      cmp tmp.idx test-3-${packname_3}.idx &&
 252
 253      git-index-pack test-3.pack &&
 254      cmp test-3.idx test-3-${packname_3}.idx &&
 255
 256      :'
 257
 258 test_expect_success \
 259     'fake a SHA1 hash collision' \
 260     'test -f    .git/objects/c8/2de19312b6c3695c0c18f70709a6c535682a67 &&
 261      cp -f      .git/objects/9d/235ed07cd19811a6ceb342de82f190e49c9f68 \
 262                 .git/objects/c8/2de19312b6c3695c0c18f70709a6c535682a67'
 263
 264 test_expect_failure \
 265     'make sure index-pack detects the SHA1 collision' \
 266     'git-index-pack -o bad.idx test-3.pack'
 267
 268 test_done