Andrew's git - gitweb.git/blob - t/t5300-pack-object.sh

   1#!/bin/sh
   2#
   3# Copyright (c) 2005 Junio C Hamano
   4#
   5
   6test_description='git-pack-object
   7
   8'
   9. ./test-lib.sh
  10
  11TRASH=`pwd`
  12
  13test_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 $object || return 1
  33         done <obj-list
  34     } >expect'
  35
  36test_expect_success \
  37    'pack without delta' \
  38    'packname_1=$(git pack-objects --window=0 test-1 <obj-list)'
  39
  40rm -fr .git2
  41mkdir .git2
  42
  43test_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
  51unset GIT_OBJECT_DIRECTORY
  52cd "$TRASH/.git2"
  53
  54test_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 $path differs.
  61             return 1
  62         }
  63     done'
  64cd "$TRASH"
  65
  66test_expect_success \
  67    'pack with REF_DELTA' \
  68    'pwd &&
  69     packname_2=$(git pack-objects test-2 <obj-list)'
  70
  71rm -fr .git2
  72mkdir .git2
  73
  74test_expect_success \
  75    'unpack with REF_DELTA' \
  76    'GIT_OBJECT_DIRECTORY=.git2/objects &&
  77     export GIT_OBJECT_DIRECTORY &&
  78     git init &&
  79     git unpack-objects -n <test-2-${packname_2}.pack &&
  80     git unpack-objects <test-2-${packname_2}.pack'
  81
  82unset GIT_OBJECT_DIRECTORY
  83cd "$TRASH/.git2"
  84test_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 $path differs.
  91             return 1
  92         }
  93     done'
  94cd "$TRASH"
  95
  96test_expect_success \
  97    'pack with OFS_DELTA' \
  98    'pwd &&
  99     packname_3=$(git pack-objects --delta-base-offset test-3 <obj-list)'
 100
 101rm -fr .git2
 102mkdir .git2
 103
 104test_expect_success \
 105    'unpack with OFS_DELTA' \
 106    'GIT_OBJECT_DIRECTORY=.git2/objects &&
 107     export GIT_OBJECT_DIRECTORY &&
 108     git init &&
 109     git unpack-objects -n <test-3-${packname_3}.pack &&
 110     git unpack-objects <test-3-${packname_3}.pack'
 111
 112unset GIT_OBJECT_DIRECTORY
 113cd "$TRASH/.git2"
 114test_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 $path differs.
 121             return 1
 122         }
 123     done'
 124cd "$TRASH"
 125
 126test_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-$packname_3.pack
 131'
 132
 133rm -fr .git2
 134mkdir .git2
 135
 136test_expect_success \
 137    'use packed objects' \
 138    'GIT_OBJECT_DIRECTORY=.git2/objects &&
 139     export GIT_OBJECT_DIRECTORY &&
 140     git init &&
 141     cp test-1-${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 $object || return 1
 147         done <obj-list
 148    } >current &&
 149    diff expect current'
 150
 151test_expect_success \
 152    'use packed deltified (REF_DELTA) objects' \
 153    'GIT_OBJECT_DIRECTORY=.git2/objects &&
 154     export GIT_OBJECT_DIRECTORY &&
 155     rm -f .git2/objects/pack/test-* &&
 156     cp test-2-${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 $object || return 1
 162         done <obj-list
 163    } >current &&
 164    diff expect current'
 165
 166test_expect_success \
 167    'use packed deltified (OFS_DELTA) objects' \
 168    'GIT_OBJECT_DIRECTORY=.git2/objects &&
 169     export GIT_OBJECT_DIRECTORY &&
 170     rm -f .git2/objects/pack/test-* &&
 171     cp test-3-${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 $object || return 1
 177         done <obj-list
 178    } >current &&
 179    diff expect current'
 180
 181unset GIT_OBJECT_DIRECTORY
 182
 183test_expect_success \
 184    'verify pack' \
 185    'git verify-pack    test-1-${packname_1}.idx \
 186                        test-2-${packname_2}.idx \
 187                        test-3-${packname_3}.idx'
 188
 189test_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=$l &&
 227     if git verify-pack test-3.pack
 228     then false
 229     else :;
 230     fi &&
 231
 232     :'
 233
 234test_expect_success \
 235    'build pack index for an existing pack' \
 236    'cat test-1-${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
 259test_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
 265test_expect_failure \
 266    'make sure index-pack detects the SHA1 collision' \
 267    'git-index-pack -o bad.idx test-3.pack'
 268
 269test_done