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   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 '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     'corrupt a pack and see if verify catches' \
 191     'cat test-1-${packname_1}.idx >test-3.idx &&
 192      cat test-2-${packname_2}.pack >test-3.pack &&
 193      if git verify-pack test-3.idx
 194      then false
 195      else :;
 196      fi &&
 197
 198      : PACK_SIGNATURE &&
 199      cat test-1-${packname_1}.pack >test-3.pack &&
 200      dd if=/dev/zero of=test-3.pack count=1 bs=1 conv=notrunc seek=2 &&
 201      if git verify-pack test-3.idx
 202      then false
 203      else :;
 204      fi &&
 205
 206      : PACK_VERSION &&
 207      cat test-1-${packname_1}.pack >test-3.pack &&
 208      dd if=/dev/zero of=test-3.pack count=1 bs=1 conv=notrunc seek=7 &&
 209      if git verify-pack test-3.idx
 210      then false
 211      else :;
 212      fi &&
 213
 214      : TYPE/SIZE byte of the first packed object data &&
 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=12 &&
 217      if git verify-pack test-3.idx
 218      then false
 219      else :;
 220      fi &&
 221
 222      : sum of the index file itself &&
 223      l=`wc -c <test-3.idx` &&
 224      l=`expr $l - 20` &&
 225      cat test-1-${packname_1}.pack >test-3.pack &&
 226      dd if=/dev/zero of=test-3.idx count=20 bs=1 conv=notrunc seek=$l &&
 227      if git verify-pack test-3.pack
 228      then false
 229      else :;
 230      fi &&
 231
 232      :'
 233
 234 test_expect_success \
 235     'build pack index for an existing pack' \
 236     'cat test-1-${packname_1}.pack >test-3.pack &&
 237      git-index-pack -o tmp.idx test-3.pack &&
 238      cmp tmp.idx test-1-${packname_1}.idx &&
 239
 240      git-index-pack test-3.pack &&
 241      cmp test-3.idx test-1-${packname_1}.idx &&
 242
 243      cat test-2-${packname_2}.pack >test-3.pack &&
 244      git-index-pack -o tmp.idx test-2-${packname_2}.pack &&
 245      cmp tmp.idx test-2-${packname_2}.idx &&
 246
 247      git-index-pack test-3.pack &&
 248      cmp test-3.idx test-2-${packname_2}.idx &&
 249
 250      cat test-3-${packname_3}.pack >test-3.pack &&
 251      git-index-pack -o tmp.idx test-3-${packname_3}.pack &&
 252      cmp tmp.idx test-3-${packname_3}.idx &&
 253
 254      git-index-pack test-3.pack &&
 255      cmp test-3.idx test-3-${packname_3}.idx &&
 256
 257      :'
 258
 259 test_expect_success \
 260     'fake a SHA1 hash collision' \
 261     'test -f    .git/objects/c8/2de19312b6c3695c0c18f70709a6c535682a67 &&
 262      cp -f      .git/objects/9d/235ed07cd19811a6ceb342de82f190e49c9f68 \
 263                 .git/objects/c8/2de19312b6c3695c0c18f70709a6c535682a67'
 264
 265 test_expect_failure \
 266     'make sure index-pack detects the SHA1 collision' \
 267     'git-index-pack -o bad.idx test-3.pack'
 268
 269 test_done