t/t5616-partial-clone.sh

   1 #!/bin/sh
   2
   3 test_description='git partial clone'
   4
   5 . ./test-lib.sh
   6
   7 # create a normal "src" repo where we can later create new commits.
   8 # expect_1.oids will contain a list of the OIDs of all blobs.
   9 test_expect_success 'setup normal src repo' '
  10         echo "{print \$1}" >print_1.awk &&
  11         echo "{print \$2}" >print_2.awk &&
  12
  13         git init src &&
  14         for n in 1 2 3 4
  15         do
  16                 echo "This is file: $n" > src/file.$n.txt
  17                 git -C src add file.$n.txt
  18                 git -C src commit -m "file $n"
  19                 git -C src ls-files -s file.$n.txt >>temp
  20         done &&
  21         awk -f print_2.awk <temp | sort >expect_1.oids &&
  22         test_line_count = 4 expect_1.oids
  23 '
  24
  25 # bare clone "src" giving "srv.bare" for use as our server.
  26 test_expect_success 'setup bare clone for server' '
  27         git clone --bare "file://$(pwd)/src" srv.bare &&
  28         git -C srv.bare config --local uploadpack.allowfilter 1 &&
  29         git -C srv.bare config --local uploadpack.allowanysha1inwant 1
  30 '
  31
  32 # do basic partial clone from "srv.bare"
  33 # confirm we are missing all of the known blobs.
  34 # confirm partial clone was registered in the local config.
  35 test_expect_success 'do partial clone 1' '
  36         git clone --no-checkout --filter=blob:none "file://$(pwd)/srv.bare" pc1 &&
  37         git -C pc1 rev-list HEAD --quiet --objects --missing=print \
  38                 | awk -f print_1.awk \
  39                 | sed "s/?//" \
  40                 | sort >observed.oids &&
  41         test_cmp expect_1.oids observed.oids &&
  42         test "$(git -C pc1 config --local core.repositoryformatversion)" = "1" &&
  43         test "$(git -C pc1 config --local extensions.partialclone)" = "origin" &&
  44         test "$(git -C pc1 config --local core.partialclonefilter)" = "blob:none"
  45 '
  46
  47 # checkout master to force dynamic object fetch of blobs at HEAD.
  48 test_expect_success 'verify checkout with dynamic object fetch' '
  49         git -C pc1 rev-list HEAD --quiet --objects --missing=print >observed &&
  50         test_line_count = 4 observed &&
  51         git -C pc1 checkout master &&
  52         git -C pc1 rev-list HEAD --quiet --objects --missing=print >observed &&
  53         test_line_count = 0 observed
  54 '
  55
  56 # create new commits in "src" repo to establish a blame history on file.1.txt
  57 # and push to "srv.bare".
  58 test_expect_success 'push new commits to server' '
  59         git -C src remote add srv "file://$(pwd)/srv.bare" &&
  60         for x in a b c d e
  61         do
  62                 echo "Mod file.1.txt $x" >>src/file.1.txt
  63                 git -C src add file.1.txt
  64                 git -C src commit -m "mod $x"
  65         done &&
  66         git -C src blame master -- file.1.txt >expect.blame &&
  67         git -C src push -u srv master
  68 '
  69
  70 # (partial) fetch in the partial clone repo from the promisor remote.
  71 # verify that fetch inherited the filter-spec from the config and DOES NOT
  72 # have the new blobs.
  73 test_expect_success 'partial fetch inherits filter settings' '
  74         git -C pc1 fetch origin &&
  75         git -C pc1 rev-list master..origin/master --quiet --objects --missing=print >observed &&
  76         test_line_count = 5 observed
  77 '
  78
  79 # force dynamic object fetch using diff.
  80 # we should only get 1 new blob (for the file in origin/master).
  81 test_expect_success 'verify diff causes dynamic object fetch' '
  82         git -C pc1 diff master..origin/master -- file.1.txt &&
  83         git -C pc1 rev-list master..origin/master --quiet --objects --missing=print >observed &&
  84         test_line_count = 4 observed
  85 '
  86
  87 # force full dynamic object fetch of the file's history using blame.
  88 # we should get the intermediate blobs for the file.
  89 test_expect_success 'verify blame causes dynamic object fetch' '
  90         git -C pc1 blame origin/master -- file.1.txt >observed.blame &&
  91         test_cmp expect.blame observed.blame &&
  92         git -C pc1 rev-list master..origin/master --quiet --objects --missing=print >observed &&
  93         test_line_count = 0 observed
  94 '
  95
  96 # create new commits in "src" repo to establish a history on file.2.txt
  97 # and push to "srv.bare".
  98 test_expect_success 'push new commits to server for file.2.txt' '
  99         for x in a b c d e f
 100         do
 101                 echo "Mod file.2.txt $x" >>src/file.2.txt
 102                 git -C src add file.2.txt
 103                 git -C src commit -m "mod $x"
 104         done &&
 105         git -C src push -u srv master
 106 '
 107
 108 # Do FULL fetch by disabling inherited filter-spec using --no-filter.
 109 # Verify we have all the new blobs.
 110 test_expect_success 'override inherited filter-spec using --no-filter' '
 111         git -C pc1 fetch --no-filter origin &&
 112         git -C pc1 rev-list master..origin/master --quiet --objects --missing=print >observed &&
 113         test_line_count = 0 observed
 114 '
 115
 116 # create new commits in "src" repo to establish a history on file.3.txt
 117 # and push to "srv.bare".
 118 test_expect_success 'push new commits to server for file.3.txt' '
 119         for x in a b c d e f
 120         do
 121                 echo "Mod file.3.txt $x" >>src/file.3.txt
 122                 git -C src add file.3.txt
 123                 git -C src commit -m "mod $x"
 124         done &&
 125         git -C src push -u srv master
 126 '
 127
 128 # Do a partial fetch and then try to manually fetch the missing objects.
 129 # This can be used as the basis of a pre-command hook to bulk fetch objects
 130 # perhaps combined with a command in dry-run mode.
 131 test_expect_success 'manual prefetch of missing objects' '
 132         git -C pc1 fetch --filter=blob:none origin &&
 133         git -C pc1 rev-list master..origin/master --quiet --objects --missing=print \
 134                 | awk -f print_1.awk \
 135                 | sed "s/?//" \
 136                 | sort >observed.oids &&
 137         test_line_count = 6 observed.oids &&
 138         git -C pc1 fetch-pack --stdin "file://$(pwd)/srv.bare" <observed.oids &&
 139         git -C pc1 rev-list master..origin/master --quiet --objects --missing=print \
 140                 | awk -f print_1.awk \
 141                 | sed "s/?//" \
 142                 | sort >observed.oids &&
 143         test_line_count = 0 observed.oids
 144 '
 145
 146 test_expect_success 'partial clone with transfer.fsckobjects=1 uses index-pack --fsck-objects' '
 147         git init src &&
 148         test_commit -C src x &&
 149         test_config -C src uploadpack.allowfilter 1 &&
 150         test_config -C src uploadpack.allowanysha1inwant 1 &&
 151
 152         GIT_TRACE="$(pwd)/trace" git -c transfer.fsckobjects=1 \
 153                 clone --filter="blob:none" "file://$(pwd)/src" dst &&
 154         grep "git index-pack.*--fsck-objects" trace
 155 '
 156
 157 test_done