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_expect_success 'setup repo with garbage in objects/*' '
 225         git init S &&
 226         (
 227                 cd S &&
 228                 test_commit A &&
 229
 230                 cd .git/objects &&
 231                 >.some-hidden-file &&
 232                 >some-file &&
 233                 mkdir .some-hidden-dir &&
 234                 >.some-hidden-dir/some-file &&
 235                 >.some-hidden-dir/.some-dot-file &&
 236                 mkdir some-dir &&
 237                 >some-dir/some-file &&
 238                 >some-dir/.some-dot-file
 239         )
 240 '
 241
 242 test_expect_success 'clone a repo with garbage in objects/*' '
 243         for option in --local --no-hardlinks --shared --dissociate
 244         do
 245                 git clone $option S S$option || return 1 &&
 246                 git -C S$option fsck || return 1
 247         done &&
 248         find S-* -name "*some*" | sort >actual &&
 249         cat >expected <<-EOF &&
 250         S--dissociate/.git/objects/.some-hidden-dir
 251         S--dissociate/.git/objects/.some-hidden-dir/.some-dot-file
 252         S--dissociate/.git/objects/.some-hidden-dir/some-file
 253         S--dissociate/.git/objects/.some-hidden-file
 254         S--dissociate/.git/objects/some-dir
 255         S--dissociate/.git/objects/some-dir/.some-dot-file
 256         S--dissociate/.git/objects/some-dir/some-file
 257         S--dissociate/.git/objects/some-file
 258         S--local/.git/objects/.some-hidden-dir
 259         S--local/.git/objects/.some-hidden-dir/.some-dot-file
 260         S--local/.git/objects/.some-hidden-dir/some-file
 261         S--local/.git/objects/.some-hidden-file
 262         S--local/.git/objects/some-dir
 263         S--local/.git/objects/some-dir/.some-dot-file
 264         S--local/.git/objects/some-dir/some-file
 265         S--local/.git/objects/some-file
 266         S--no-hardlinks/.git/objects/.some-hidden-dir
 267         S--no-hardlinks/.git/objects/.some-hidden-dir/.some-dot-file
 268         S--no-hardlinks/.git/objects/.some-hidden-dir/some-file
 269         S--no-hardlinks/.git/objects/.some-hidden-file
 270         S--no-hardlinks/.git/objects/some-dir
 271         S--no-hardlinks/.git/objects/some-dir/.some-dot-file
 272         S--no-hardlinks/.git/objects/some-dir/some-file
 273         S--no-hardlinks/.git/objects/some-file
 274         EOF
 275         test_cmp expected actual
 276 '
 277
 278 test_expect_success SYMLINKS 'setup repo with manually symlinked or unknown files at objects/' '
 279         git init T &&
 280         (
 281                 cd T &&
 282                 git config gc.auto 0 &&
 283                 test_commit A &&
 284                 git gc &&
 285                 test_commit B &&
 286
 287                 cd .git/objects &&
 288                 mv pack packs &&
 289                 ln -s packs pack &&
 290                 find ?? -type d >loose-dirs &&
 291                 last_loose=$(tail -n 1 loose-dirs) &&
 292                 mv $last_loose a-loose-dir &&
 293                 ln -s a-loose-dir $last_loose &&
 294                 first_loose=$(head -n 1 loose-dirs) &&
 295                 rm -f loose-dirs &&
 296
 297                 cd $first_loose &&
 298                 obj=$(ls *) &&
 299                 mv $obj ../an-object &&
 300                 ln -s ../an-object $obj &&
 301
 302                 cd ../ &&
 303                 find . -type f | sort >../../../T.objects-files.raw &&
 304                 find . -type l | sort >../../../T.objects-symlinks.raw &&
 305                 echo unknown_content >unknown_file
 306         ) &&
 307         git -C T fsck &&
 308         git -C T rev-list --all --objects >T.objects
 309 '
 310
 311
 312 test_expect_success SYMLINKS 'clone repo with symlinked or unknown files at objects/' '
 313         for option in --local --no-hardlinks --shared --dissociate
 314         do
 315                 git clone $option T T$option || return 1 &&
 316                 git -C T$option fsck || return 1 &&
 317                 git -C T$option rev-list --all --objects >T$option.objects &&
 318                 test_cmp T.objects T$option.objects &&
 319                 (
 320                         cd T$option/.git/objects &&
 321                         find . -type f | sort >../../../T$option.objects-files.raw &&
 322                         find . -type l | sort >../../../T$option.objects-symlinks.raw
 323                 )
 324         done &&
 325
 326         for raw in $(ls T*.raw)
 327         do
 328                 sed -e "s!/../!/Y/!; s![0-9a-f]\{38,\}!Z!" -e "/commit-graph/d" \
 329                     -e "/multi-pack-index/d" <$raw >$raw.de-sha || return 1
 330         done &&
 331
 332         cat >expected-files <<-EOF &&
 333         ./Y/Z
 334         ./Y/Z
 335         ./a-loose-dir/Z
 336         ./an-object
 337         ./Y/Z
 338         ./info/packs
 339         ./pack/pack-Z.idx
 340         ./pack/pack-Z.pack
 341         ./packs/pack-Z.idx
 342         ./packs/pack-Z.pack
 343         ./unknown_file
 344         EOF
 345
 346         for option in --local --no-hardlinks --dissociate
 347         do
 348                 test_cmp expected-files T$option.objects-files.raw.de-sha || return 1 &&
 349                 test_must_be_empty T$option.objects-symlinks.raw.de-sha || return 1
 350         done &&
 351
 352         echo ./info/alternates >expected-files &&
 353         test_cmp expected-files T--shared.objects-files.raw &&
 354         test_must_be_empty T--shared.objects-symlinks.raw
 355 '
 356
 357 test_done