Andrew's git / gitweb.git / t/t5302-pack-index.sh
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t / t5302-pack-index.shon commit t/test-lib.sh: Protect ourselves from common misconfiguration (886a390)
   1#!/bin/sh
   2#
   3# Copyright (c) 2007 Nicolas Pitre
   4#
   5
   6test_description='pack index with 64-bit offsets and object CRC'
   7. ./test-lib.sh
   8
   9test_expect_success \
  10    'setup' \
  11    'rm -rf .git
  12     git-init &&
  13     for i in `seq -w 100`
  14     do
  15         echo $i >file_$i &&
  16         test-genrandom "$i" 8192 >>file_$i &&
  17         git-update-index --add file_$i || return 1
  18     done &&
  19     { echo 101 && test-genrandom 100 8192; } >file_101 &&
  20     git-update-index --add file_101 &&
  21     tree=`git-write-tree` &&
  22     commit=`git-commit-tree $tree </dev/null` && {
  23         echo $tree &&
  24         git-ls-tree $tree | sed -e "s/.* \\([0-9a-f]*\\)       .*/\\1/"
  25     } >obj-list &&
  26     git-update-ref HEAD $commit'
  27
  28test_expect_success \
  29    'pack-objects with index version 1' \
  30    'pack1=$(git-pack-objects --index-version=1 test-1 <obj-list) &&
  31     git-verify-pack -v "test-1-${pack1}.pack"'
  32
  33test_expect_success \
  34    'pack-objects with index version 2' \
  35    'pack2=$(git-pack-objects --index-version=2 test-2 <obj-list) &&
  36     git-verify-pack -v "test-2-${pack2}.pack"'
  37
  38test_expect_success \
  39    'both packs should be identical' \
  40    'cmp "test-1-${pack1}.pack" "test-2-${pack2}.pack"'
  41
  42test_expect_failure \
  43    'index v1 and index v2 should be different' \
  44    'cmp "test-1-${pack1}.idx" "test-2-${pack2}.idx"'
  45
  46test_expect_success \
  47    'index-pack with index version 1' \
  48    'git-index-pack --index-version=1 -o 1.idx "test-1-${pack1}.pack"'
  49
  50test_expect_success \
  51    'index-pack with index version 2' \
  52    'git-index-pack --index-version=2 -o 2.idx "test-1-${pack1}.pack"'
  53
  54test_expect_success \
  55    'index-pack results should match pack-objects ones' \
  56    'cmp "test-1-${pack1}.idx" "1.idx" &&
  57     cmp "test-2-${pack2}.idx" "2.idx"'
  58
  59test_expect_success \
  60    'index v2: force some 64-bit offsets with pack-objects' \
  61    'pack3=$(git-pack-objects --index-version=2,0x40000 test-3 <obj-list) &&
  62     git-verify-pack -v "test-3-${pack3}.pack"'
  63
  64test_expect_failure \
  65    '64-bit offsets: should be different from previous index v2 results' \
  66    'cmp "test-2-${pack2}.idx" "test-3-${pack3}.idx"'
  67
  68test_expect_success \
  69    'index v2: force some 64-bit offsets with index-pack' \
  70    'git-index-pack --index-version=2,0x40000 -o 3.idx "test-1-${pack1}.pack"'
  71
  72test_expect_success \
  73    '64-bit offsets: index-pack result should match pack-objects one' \
  74    'cmp "test-3-${pack3}.idx" "3.idx"'
  75
  76test_expect_success \
  77    '[index v1] 1) stream pack to repository' \
  78    'git-index-pack --index-version=1 --stdin < "test-1-${pack1}.pack" &&
  79     git-prune-packed &&
  80     git-count-objects | ( read nr rest && test "$nr" -eq 1 ) &&
  81     cmp "test-1-${pack1}.pack" ".git/objects/pack/pack-${pack1}.pack" &&
  82     cmp "test-1-${pack1}.idx"  ".git/objects/pack/pack-${pack1}.idx"'
  83
  84test_expect_success \
  85    '[index v1] 2) create a stealth corruption in a delta base reference' \
  86    '# this test assumes a delta smaller than 16 bytes at the end of the pack
  87     git-show-index <1.idx | sort -n | tail -n 1 | (
  88       read delta_offs delta_sha1 &&
  89       git-cat-file blob "$delta_sha1" > blob_1 &&
  90       chmod +w ".git/objects/pack/pack-${pack1}.pack" &&
  91       dd of=".git/objects/pack/pack-${pack1}.pack" seek=$(($delta_offs + 1)) \
  92          if=".git/objects/pack/pack-${pack1}.idx" skip=$((256 * 4 + 4)) \
  93          bs=1 count=20 conv=notrunc &&
  94       git-cat-file blob "$delta_sha1" > blob_2 )'
  95
  96test_expect_failure \
  97    '[index v1] 3) corrupted delta happily returned wrong data' \
  98    'cmp blob_1 blob_2'
  99
 100test_expect_failure \
 101    '[index v1] 4) confirm that the pack is actually corrupted' \
 102    'git-fsck --full $commit'
 103
 104test_expect_success \
 105    '[index v1] 5) pack-objects happily reuses corrupted data' \
 106    'pack4=$(git-pack-objects test-4 <obj-list) &&
 107     test -f "test-4-${pack1}.pack"'
 108
 109test_expect_failure \
 110    '[index v1] 6) newly created pack is BAD !' \
 111    'git-verify-pack -v "test-4-${pack1}.pack"'
 112
 113test_expect_success \
 114    '[index v2] 1) stream pack to repository' \
 115    'rm -f .git/objects/pack/* &&
 116     git-index-pack --index-version=2,0x40000 --stdin < "test-1-${pack1}.pack" &&
 117     git-prune-packed &&
 118     git-count-objects | ( read nr rest && test "$nr" -eq 1 ) &&
 119     cmp "test-1-${pack1}.pack" ".git/objects/pack/pack-${pack1}.pack" &&
 120     cmp "test-3-${pack1}.idx"  ".git/objects/pack/pack-${pack1}.idx"'
 121
 122test_expect_success \
 123    '[index v2] 2) create a stealth corruption in a delta base reference' \
 124    '# this test assumes a delta smaller than 16 bytes at the end of the pack
 125     git-show-index <1.idx | sort -n | tail -n 1 | (
 126       read delta_offs delta_sha1 delta_crc &&
 127       git-cat-file blob "$delta_sha1" > blob_3 &&
 128       chmod +w ".git/objects/pack/pack-${pack1}.pack" &&
 129       dd of=".git/objects/pack/pack-${pack1}.pack" seek=$(($delta_offs + 1)) \
 130          if=".git/objects/pack/pack-${pack1}.idx" skip=$((8 + 256 * 4)) \
 131          bs=1 count=20 conv=notrunc &&
 132       git-cat-file blob "$delta_sha1" > blob_4 )'
 133
 134test_expect_failure \
 135    '[index v2] 3) corrupted delta happily returned wrong data' \
 136    'cmp blob_3 blob_4'
 137
 138test_expect_failure \
 139    '[index v2] 4) confirm that the pack is actually corrupted' \
 140    'git-fsck --full $commit'
 141
 142test_expect_failure \
 143    '[index v2] 5) pack-objects refuses to reuse corrupted data' \
 144    'git-pack-objects test-5 <obj-list'
 145
 146test_done