t/t5004-archive-corner-cases.sh

   1 #!/bin/sh
   2
   3 test_description='test corner cases of git-archive'
   4 . ./test-lib.sh
   5
   6 test_expect_success 'create commit with empty tree' '
   7         git commit --allow-empty -m foo
   8 '
   9
  10 # Make a dir and clean it up afterwards
  11 make_dir() {
  12         mkdir "$1" &&
  13         test_when_finished "rm -rf '$1'"
  14 }
  15
  16 # Check that the dir given in "$1" contains exactly the
  17 # set of paths given as arguments.
  18 check_dir() {
  19         dir=$1; shift
  20         {
  21                 echo "$dir" &&
  22                 for i in "$@"; do
  23                         echo "$dir/$i"
  24                 done
  25         } | sort >expect &&
  26         find "$dir" ! -name pax_global_header -print | sort >actual &&
  27         test_cmp expect actual
  28 }
  29
  30 # bsdtar/libarchive versions before 3.1.3 consider a tar file with a
  31 # global pax header that is not followed by a file record as corrupt.
  32 if "$TAR" tf "$TEST_DIRECTORY"/t5004/empty-with-pax-header.tar >/dev/null 2>&1
  33 then
  34         test_set_prereq HEADER_ONLY_TAR_OK
  35 fi
  36
  37 test_expect_success HEADER_ONLY_TAR_OK 'tar archive of commit with empty tree' '
  38         git archive --format=tar HEAD >empty-with-pax-header.tar &&
  39         make_dir extract &&
  40         "$TAR" xf empty-with-pax-header.tar -C extract &&
  41         check_dir extract
  42 '
  43
  44 test_expect_success 'tar archive of empty tree is empty' '
  45         git archive --format=tar HEAD: >empty.tar &&
  46         perl -e "print \"\\0\" x 10240" >10knuls.tar &&
  47         test_cmp 10knuls.tar empty.tar
  48 '
  49
  50 test_expect_success 'tar archive of empty tree with prefix' '
  51         git archive --format=tar --prefix=foo/ HEAD >prefix.tar &&
  52         make_dir extract &&
  53         "$TAR" xf prefix.tar -C extract &&
  54         check_dir extract foo
  55 '
  56
  57 test_expect_success UNZIP 'zip archive of empty tree is empty' '
  58         # Detect the exit code produced when our particular flavor of unzip
  59         # sees an empty archive. Infozip will generate a warning and exit with
  60         # code 1. But in the name of sanity, we do not expect other unzip
  61         # implementations to do the same thing (it would be perfectly
  62         # reasonable to exit 0, for example).
  63         #
  64         # This makes our test less rigorous on some platforms (unzip may not
  65         # handle the empty repo at all, making our later check of its exit code
  66         # a no-op). But we cannot do anything reasonable except skip the test
  67         # on such platforms anyway, and this is the moral equivalent.
  68         "$GIT_UNZIP" "$TEST_DIRECTORY"/t5004/empty.zip
  69         expect_code=$?
  70
  71         git archive --format=zip HEAD >empty.zip &&
  72         make_dir extract &&
  73         (
  74                 cd extract &&
  75                 test_expect_code $expect_code "$GIT_UNZIP" ../empty.zip
  76         ) &&
  77         check_dir extract
  78 '
  79
  80 test_expect_success UNZIP 'zip archive of empty tree with prefix' '
  81         # We do not have to play exit-code tricks here, because our
  82         # result should not be empty; it has a directory in it.
  83         git archive --format=zip --prefix=foo/ HEAD >prefix.zip &&
  84         make_dir extract &&
  85         (
  86                 cd extract &&
  87                 "$GIT_UNZIP" ../prefix.zip
  88         ) &&
  89         check_dir extract foo
  90 '
  91
  92 test_expect_success 'archive complains about pathspec on empty tree' '
  93         test_must_fail git archive --format=tar HEAD -- foo >/dev/null
  94 '
  95
  96 test_expect_success 'create a commit with an empty subtree' '
  97         empty_tree=$(git hash-object -t tree /dev/null) &&
  98         root_tree=$(printf "040000 tree $empty_tree\tsub\n" | git mktree)
  99 '
 100
 101 test_expect_success 'archive empty subtree with no pathspec' '
 102         git archive --format=tar $root_tree >subtree-all.tar &&
 103         make_dir extract &&
 104         "$TAR" xf subtree-all.tar -C extract &&
 105         check_dir extract sub
 106 '
 107
 108 test_expect_success 'archive empty subtree by direct pathspec' '
 109         git archive --format=tar $root_tree -- sub >subtree-path.tar &&
 110         make_dir extract &&
 111         "$TAR" xf subtree-path.tar -C extract &&
 112         check_dir extract sub
 113 '
 114
 115 test_done