t/t5604-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 # create a commit in repo $1 with name $2
  14 commit_in () {
  15         (
  16                 cd "$1" &&
  17                 echo "$2" >"$2" &&
  18                 git add "$2" &&
  19                 git commit -m "$2"
  20         )
  21 }
  22
  23 # check that there are $2 loose objects in repo $1
  24 test_objcount () {
  25         echo "$2" >expect &&
  26         git -C "$1" count-objects >actual.raw &&
  27         cut -d' ' -f1 <actual.raw >actual &&
  28         test_cmp expect actual
  29 }
  30
  31 test_expect_success 'preparing first repository' '
  32         test_create_repo A &&
  33         commit_in A file1
  34 '
  35
  36 test_expect_success 'preparing second repository' '
  37         git clone A B &&
  38         commit_in B file2 &&
  39         git -C B repack -ad &&
  40         git -C B prune
  41 '
  42
  43 test_expect_success 'cloning with reference (-l -s)' '
  44         git clone -l -s --reference B A C
  45 '
  46
  47 test_expect_success 'existence of info/alternates' '
  48         test_line_count = 2 C/.git/objects/info/alternates
  49 '
  50
  51 test_expect_success 'pulling from reference' '
  52         git -C C pull ../B master
  53 '
  54
  55 test_expect_success 'that reference gets used' '
  56         test_objcount C 0
  57 '
  58
  59 test_expect_success 'cloning with reference (no -l -s)' '
  60         GIT_TRACE_PACKET=$U.D git clone --reference B "file://$(pwd)/A" D
  61 '
  62
  63 test_expect_success 'fetched no objects' '
  64         test -s "$U.D" &&
  65         ! grep " want" "$U.D"
  66 '
  67
  68 test_expect_success 'existence of info/alternates' '
  69         test_line_count = 1 D/.git/objects/info/alternates
  70 '
  71
  72 test_expect_success 'pulling from reference' '
  73         git -C D pull ../B master
  74 '
  75
  76 test_expect_success 'that reference gets used' '
  77         test_objcount D 0
  78 '
  79
  80 test_expect_success 'updating origin' '
  81         commit_in A file3 &&
  82         git -C A repack -ad &&
  83         git -C A prune
  84 '
  85
  86 test_expect_success 'pulling changes from origin' '
  87         git -C C pull origin
  88 '
  89
  90 # the 2 local objects are commit and tree from the merge
  91 test_expect_success 'that alternate to origin gets used' '
  92         test_objcount C 2
  93 '
  94
  95 test_expect_success 'pulling changes from origin' '
  96         git -C D pull origin
  97 '
  98
  99 # the 5 local objects are expected; file3 blob, commit in A to add it
 100 # and its tree, and 2 are our tree and the merge commit.
 101 test_expect_success 'check objects expected to exist locally' '
 102         test_objcount D 5
 103 '
 104
 105 test_expect_success 'preparing alternate repository #1' '
 106         test_create_repo F &&
 107         commit_in F file1
 108 '
 109
 110 test_expect_success 'cloning alternate repo #2 and adding changes to repo #1' '
 111         git clone F G &&
 112         commit_in F file2
 113 '
 114
 115 test_expect_success 'cloning alternate repo #1, using #2 as reference' '
 116         git clone --reference G F H
 117 '
 118
 119 test_expect_success 'cloning with reference being subset of source (-l -s)' '
 120         git clone -l -s --reference A B E
 121 '
 122
 123 test_expect_success 'cloning with multiple references drops duplicates' '
 124         git clone -s --reference B --reference A --reference B A dups &&
 125         test_line_count = 2 dups/.git/objects/info/alternates
 126 '
 127
 128 test_expect_success 'clone with reference from a tagged repository' '
 129         (
 130                 cd A && git tag -a -m tagged HEAD
 131         ) &&
 132         git clone --reference=A A I
 133 '
 134
 135 test_expect_success 'prepare branched repository' '
 136         git clone A J &&
 137         (
 138                 cd J &&
 139                 git checkout -b other master^ &&
 140                 echo other >otherfile &&
 141                 git add otherfile &&
 142                 git commit -m other &&
 143                 git checkout master
 144         )
 145 '
 146
 147 test_expect_success 'fetch with incomplete alternates' '
 148         git init K &&
 149         echo "$base_dir/A/.git/objects" >K/.git/objects/info/alternates &&
 150         (
 151                 cd K &&
 152                 git remote add J "file://$base_dir/J" &&
 153                 GIT_TRACE_PACKET=$U.K git fetch J
 154         ) &&
 155         master_object=$(cd A && git for-each-ref --format="%(objectname)" refs/heads/master) &&
 156         test -s "$U.K" &&
 157         ! grep " want $master_object" "$U.K" &&
 158         tag_object=$(cd A && git for-each-ref --format="%(objectname)" refs/tags/HEAD) &&
 159         ! grep " want $tag_object" "$U.K"
 160 '
 161
 162 test_expect_success 'clone using repo with gitfile as a reference' '
 163         git clone --separate-git-dir=L A M &&
 164         git clone --reference=M A N &&
 165         echo "$base_dir/L/objects" >expected &&
 166         test_cmp expected "$base_dir/N/.git/objects/info/alternates"
 167 '
 168
 169 test_expect_success 'clone using repo pointed at by gitfile as reference' '
 170         git clone --reference=M/.git A O &&
 171         echo "$base_dir/L/objects" >expected &&
 172         test_cmp expected "$base_dir/O/.git/objects/info/alternates"
 173 '
 174
 175 test_expect_success 'clone and dissociate from reference' '
 176         git init P &&
 177         (
 178                 cd P && test_commit one
 179         ) &&
 180         git clone P Q &&
 181         (
 182                 cd Q && test_commit two
 183         ) &&
 184         git clone --no-local --reference=P Q R &&
 185         git clone --no-local --reference=P --dissociate Q S &&
 186         # removing the reference P would corrupt R but not S
 187         rm -fr P &&
 188         test_must_fail git -C R fsck &&
 189         git -C S fsck
 190 '
 191 test_expect_success 'clone, dissociate from partial reference and repack' '
 192         rm -fr P Q R &&
 193         git init P &&
 194         (
 195                 cd P &&
 196                 test_commit one &&
 197                 git repack &&
 198                 test_commit two &&
 199                 git repack
 200         ) &&
 201         git clone --bare P Q &&
 202         (
 203                 cd P &&
 204                 git checkout -b second &&
 205                 test_commit three &&
 206                 git repack
 207         ) &&
 208         git clone --bare --dissociate --reference=P Q R &&
 209         ls R/objects/pack/*.pack >packs.txt &&
 210         test_line_count = 1 packs.txt
 211 '
 212
 213 test_expect_success 'clone, dissociate from alternates' '
 214         rm -fr A B C &&
 215         test_create_repo A &&
 216         commit_in A file1 &&
 217         git clone --reference=A A B &&
 218         test_line_count = 1 B/.git/objects/info/alternates &&
 219         git clone --local --dissociate B C &&
 220         ! test -f C/.git/objects/info/alternates &&
 221         ( cd C && git fsck )
 222 '
 223
 224 test_done