t/t5700-clone-reference.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (C) 2006 Martin Waitz <tali@admingilde.org>
   4 #
   5
   6 test_description='test clone --reference'
   7 . ./test-lib.sh
   8
   9 base_dir=`pwd`
  10
  11 U=$base_dir/UPLOAD_LOG
  12
  13 test_expect_success 'preparing first repository' \
  14 'test_create_repo A && cd A &&
  15 echo first > file1 &&
  16 git add file1 &&
  17 git commit -m initial'
  18
  19 cd "$base_dir"
  20
  21 test_expect_success 'preparing second repository' \
  22 'git clone A B && cd B &&
  23 echo second > file2 &&
  24 git add file2 &&
  25 git commit -m addition &&
  26 git repack -a -d &&
  27 git prune'
  28
  29 cd "$base_dir"
  30
  31 test_expect_success 'cloning with reference (-l -s)' \
  32 'git clone -l -s --reference B A C'
  33
  34 cd "$base_dir"
  35
  36 test_expect_success 'existence of info/alternates' \
  37 'test_line_count = 2 C/.git/objects/info/alternates'
  38
  39 cd "$base_dir"
  40
  41 test_expect_success 'pulling from reference' \
  42 'cd C &&
  43 git pull ../B master'
  44
  45 cd "$base_dir"
  46
  47 test_expect_success 'that reference gets used' \
  48 'cd C &&
  49 echo "0 objects, 0 kilobytes" > expected &&
  50 git count-objects > current &&
  51 test_cmp expected current'
  52
  53 cd "$base_dir"
  54
  55 rm -f "$U.D"
  56
  57 test_expect_success 'cloning with reference (no -l -s)' '
  58         GIT_TRACE_PACKET=$U.D git clone --reference B "file://$(pwd)/A" D
  59 '
  60
  61 test_expect_success 'fetched no objects' '
  62         test -s "$U.D" &&
  63         ! grep " want" "$U.D"
  64 '
  65
  66 cd "$base_dir"
  67
  68 test_expect_success 'existence of info/alternates' \
  69 'test_line_count = 1 D/.git/objects/info/alternates'
  70
  71 cd "$base_dir"
  72
  73 test_expect_success 'pulling from reference' \
  74 'cd D && git pull ../B master'
  75
  76 cd "$base_dir"
  77
  78 test_expect_success 'that reference gets used' \
  79 'cd D && echo "0 objects, 0 kilobytes" > expected &&
  80 git count-objects > current &&
  81 test_cmp expected current'
  82
  83 cd "$base_dir"
  84
  85 test_expect_success 'updating origin' \
  86 'cd A &&
  87 echo third > file3 &&
  88 git add file3 &&
  89 git commit -m update &&
  90 git repack -a -d &&
  91 git prune'
  92
  93 cd "$base_dir"
  94
  95 test_expect_success 'pulling changes from origin' \
  96 'cd C &&
  97 git pull origin'
  98
  99 cd "$base_dir"
 100
 101 # the 2 local objects are commit and tree from the merge
 102 test_expect_success 'that alternate to origin gets used' \
 103 'cd C &&
 104 echo "2 objects" > expected &&
 105 git count-objects | cut -d, -f1 > current &&
 106 test_cmp expected current'
 107
 108 cd "$base_dir"
 109
 110 test_expect_success 'pulling changes from origin' \
 111 'cd D &&
 112 git pull origin'
 113
 114 cd "$base_dir"
 115
 116 # the 5 local objects are expected; file3 blob, commit in A to add it
 117 # and its tree, and 2 are our tree and the merge commit.
 118 test_expect_success 'check objects expected to exist locally' \
 119 'cd D &&
 120 echo "5 objects" > expected &&
 121 git count-objects | cut -d, -f1 > current &&
 122 test_cmp expected current'
 123
 124 cd "$base_dir"
 125
 126 test_expect_success 'preparing alternate repository #1' \
 127 'test_create_repo F && cd F &&
 128 echo first > file1 &&
 129 git add file1 &&
 130 git commit -m initial'
 131
 132 cd "$base_dir"
 133
 134 test_expect_success 'cloning alternate repo #2 and adding changes to repo #1' \
 135 'git clone F G && cd F &&
 136 echo second > file2 &&
 137 git add file2 &&
 138 git commit -m addition'
 139
 140 cd "$base_dir"
 141
 142 test_expect_success 'cloning alternate repo #1, using #2 as reference' \
 143 'git clone --reference G F H'
 144
 145 cd "$base_dir"
 146
 147 test_expect_success 'cloning with reference being subset of source (-l -s)' \
 148 'git clone -l -s --reference A B E'
 149
 150 cd "$base_dir"
 151
 152 test_expect_success 'clone with reference from a tagged repository' '
 153         (
 154                 cd A && git tag -a -m 'tagged' HEAD
 155         ) &&
 156         git clone --reference=A A I
 157 '
 158
 159 test_expect_success 'prepare branched repository' '
 160         git clone A J &&
 161         (
 162                 cd J &&
 163                 git checkout -b other master^ &&
 164                 echo other >otherfile &&
 165                 git add otherfile &&
 166                 git commit -m other &&
 167                 git checkout master
 168         )
 169 '
 170
 171 rm -f "$U.K"
 172
 173 test_expect_success 'fetch with incomplete alternates' '
 174         git init K &&
 175         echo "$base_dir/A/.git/objects" >K/.git/objects/info/alternates &&
 176         (
 177                 cd K &&
 178                 git remote add J "file://$base_dir/J" &&
 179                 GIT_TRACE_PACKET=$U.K git fetch J
 180         ) &&
 181         master_object=$(cd A && git for-each-ref --format="%(objectname)" refs/heads/master) &&
 182         test -s "$U.K" &&
 183         ! grep " want $master_object" "$U.K" &&
 184         tag_object=$(cd A && git for-each-ref --format="%(objectname)" refs/tags/HEAD) &&
 185         ! grep " want $tag_object" "$U.K"
 186 '
 187
 188 test_expect_success 'clone using repo with gitfile as a reference' '
 189         git clone --separate-git-dir=L A M &&
 190         git clone --reference=M A N &&
 191         echo "$base_dir/L/objects" >expected &&
 192         test_cmp expected "$base_dir/N/.git/objects/info/alternates"
 193 '
 194
 195 test_expect_success 'clone using repo pointed at by gitfile as reference' '
 196         git clone --reference=M/.git A O &&
 197         echo "$base_dir/L/objects" >expected &&
 198         test_cmp expected "$base_dir/O/.git/objects/info/alternates"
 199 '
 200
 201 test_expect_success 'clone and dissociate from reference' '
 202         git init P &&
 203         (
 204                 cd P && test_commit one
 205         ) &&
 206         git clone P Q &&
 207         (
 208                 cd Q && test_commit two
 209         ) &&
 210         git clone --no-local --reference=P Q R &&
 211         git clone --no-local --reference=P --dissociate Q S &&
 212         # removing the reference P would corrupt R but not S
 213         rm -fr P &&
 214         test_must_fail git -C R fsck &&
 215         git -C S fsck
 216 '
 217
 218 test_done