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
  31 # bsdtar/libarchive versions before 3.1.3 consider a tar file with a
  32 # global pax header that is not followed by a file record as corrupt.
  33 if "$TAR" tf "$TEST_DIRECTORY"/t5004/empty-with-pax-header.tar >/dev/null 2>&1
  34 then
  35         test_set_prereq HEADER_ONLY_TAR_OK
  36 fi
  37
  38 test_expect_success HEADER_ONLY_TAR_OK 'tar archive of commit with empty tree' '
  39         git archive --format=tar HEAD >empty-with-pax-header.tar &&
  40         make_dir extract &&
  41         "$TAR" xf empty-with-pax-header.tar -C extract &&
  42         check_dir extract
  43 '
  44
  45 test_expect_success 'tar archive of empty tree is empty' '
  46         git archive --format=tar HEAD: >empty.tar &&
  47         perl -e "print \"\\0\" x 10240" >10knuls.tar &&
  48         test_cmp_bin 10knuls.tar empty.tar
  49 '
  50
  51 test_expect_success 'tar archive of empty tree with prefix' '
  52         git archive --format=tar --prefix=foo/ HEAD >prefix.tar &&
  53         make_dir extract &&
  54         "$TAR" xf prefix.tar -C extract &&
  55         check_dir extract foo
  56 '
  57
  58 test_expect_success UNZIP 'zip archive of empty tree is empty' '
  59         # Detect the exit code produced when our particular flavor of unzip
  60         # sees an empty archive. Infozip will generate a warning and exit with
  61         # code 1. But in the name of sanity, we do not expect other unzip
  62         # implementations to do the same thing (it would be perfectly
  63         # reasonable to exit 0, for example).
  64         #
  65         # This makes our test less rigorous on some platforms (unzip may not
  66         # handle the empty repo at all, making our later check of its exit code
  67         # a no-op). But we cannot do anything reasonable except skip the test
  68         # on such platforms anyway, and this is the moral equivalent.
  69         {
  70                 "$GIT_UNZIP" "$TEST_DIRECTORY"/t5004/empty.zip
  71                 expect_code=$?
  72         } &&
  73
  74         git archive --format=zip HEAD >empty.zip &&
  75         make_dir extract &&
  76         (
  77                 cd extract &&
  78                 test_expect_code $expect_code "$GIT_UNZIP" ../empty.zip
  79         ) &&
  80         check_dir extract
  81 '
  82
  83 test_expect_success UNZIP 'zip archive of empty tree with prefix' '
  84         # We do not have to play exit-code tricks here, because our
  85         # result should not be empty; it has a directory in it.
  86         git archive --format=zip --prefix=foo/ HEAD >prefix.zip &&
  87         make_dir extract &&
  88         (
  89                 cd extract &&
  90                 "$GIT_UNZIP" ../prefix.zip
  91         ) &&
  92         check_dir extract foo
  93 '
  94
  95 test_expect_success 'archive complains about pathspec on empty tree' '
  96         test_must_fail git archive --format=tar HEAD -- foo >/dev/null
  97 '
  98
  99 test_expect_success 'create a commit with an empty subtree' '
 100         empty_tree=$(git hash-object -t tree /dev/null) &&
 101         root_tree=$(printf "040000 tree $empty_tree\tsub\n" | git mktree)
 102 '
 103
 104 test_expect_success 'archive empty subtree with no pathspec' '
 105         git archive --format=tar $root_tree >subtree-all.tar &&
 106         make_dir extract &&
 107         "$TAR" xf subtree-all.tar -C extract &&
 108         check_dir extract sub
 109 '
 110
 111 test_expect_success 'archive empty subtree by direct pathspec' '
 112         git archive --format=tar $root_tree -- sub >subtree-path.tar &&
 113         make_dir extract &&
 114         "$TAR" xf subtree-path.tar -C extract &&
 115         check_dir extract sub
 116 '
 117
 118 test_done