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 test_lazy_prereq UNZIP_ZIP64_SUPPORT '
  31         "$GIT_UNZIP" -v | grep ZIP64_SUPPORT
  32 '
  33
  34 # bsdtar/libarchive versions before 3.1.3 consider a tar file with a
  35 # global pax header that is not followed by a file record as corrupt.
  36 if "$TAR" tf "$TEST_DIRECTORY"/t5004/empty-with-pax-header.tar >/dev/null 2>&1
  37 then
  38         test_set_prereq HEADER_ONLY_TAR_OK
  39 fi
  40
  41 test_expect_success HEADER_ONLY_TAR_OK 'tar archive of commit with empty tree' '
  42         git archive --format=tar HEAD >empty-with-pax-header.tar &&
  43         make_dir extract &&
  44         "$TAR" xf empty-with-pax-header.tar -C extract &&
  45         check_dir extract
  46 '
  47
  48 test_expect_success 'tar archive of empty tree is empty' '
  49         git archive --format=tar HEAD: >empty.tar &&
  50         perl -e "print \"\\0\" x 10240" >10knuls.tar &&
  51         test_cmp_bin 10knuls.tar empty.tar
  52 '
  53
  54 test_expect_success 'tar archive of empty tree with prefix' '
  55         git archive --format=tar --prefix=foo/ HEAD >prefix.tar &&
  56         make_dir extract &&
  57         "$TAR" xf prefix.tar -C extract &&
  58         check_dir extract foo
  59 '
  60
  61 test_expect_success UNZIP 'zip archive of empty tree is empty' '
  62         # Detect the exit code produced when our particular flavor of unzip
  63         # sees an empty archive. Infozip will generate a warning and exit with
  64         # code 1. But in the name of sanity, we do not expect other unzip
  65         # implementations to do the same thing (it would be perfectly
  66         # reasonable to exit 0, for example).
  67         #
  68         # This makes our test less rigorous on some platforms (unzip may not
  69         # handle the empty repo at all, making our later check of its exit code
  70         # a no-op). But we cannot do anything reasonable except skip the test
  71         # on such platforms anyway, and this is the moral equivalent.
  72         {
  73                 "$GIT_UNZIP" "$TEST_DIRECTORY"/t5004/empty.zip
  74                 expect_code=$?
  75         } &&
  76
  77         git archive --format=zip HEAD >empty.zip &&
  78         make_dir extract &&
  79         (
  80                 cd extract &&
  81                 test_expect_code $expect_code "$GIT_UNZIP" ../empty.zip
  82         ) &&
  83         check_dir extract
  84 '
  85
  86 test_expect_success UNZIP 'zip archive of empty tree with prefix' '
  87         # We do not have to play exit-code tricks here, because our
  88         # result should not be empty; it has a directory in it.
  89         git archive --format=zip --prefix=foo/ HEAD >prefix.zip &&
  90         make_dir extract &&
  91         (
  92                 cd extract &&
  93                 "$GIT_UNZIP" ../prefix.zip
  94         ) &&
  95         check_dir extract foo
  96 '
  97
  98 test_expect_success 'archive complains about pathspec on empty tree' '
  99         test_must_fail git archive --format=tar HEAD -- foo >/dev/null
 100 '
 101
 102 test_expect_success 'create a commit with an empty subtree' '
 103         empty_tree=$(git hash-object -t tree /dev/null) &&
 104         root_tree=$(printf "040000 tree $empty_tree\tsub\n" | git mktree)
 105 '
 106
 107 test_expect_success 'archive empty subtree with no pathspec' '
 108         git archive --format=tar $root_tree >subtree-all.tar &&
 109         make_dir extract &&
 110         "$TAR" xf subtree-all.tar -C extract &&
 111         check_dir extract sub
 112 '
 113
 114 test_expect_success 'archive empty subtree by direct pathspec' '
 115         git archive --format=tar $root_tree -- sub >subtree-path.tar &&
 116         make_dir extract &&
 117         "$TAR" xf subtree-path.tar -C extract &&
 118         check_dir extract sub
 119 '
 120
 121 ZIPINFO=zipinfo
 122
 123 test_lazy_prereq ZIPINFO '
 124         n=$("$ZIPINFO" "$TEST_DIRECTORY"/t5004/empty.zip | sed -n "2s/.* //p")
 125         test "x$n" = "x0"
 126 '
 127
 128 test_expect_success ZIPINFO 'zip archive with many entries' '
 129         # add a directory with 256 files
 130         mkdir 00 &&
 131         for a in 0 1 2 3 4 5 6 7 8 9 a b c d e f
 132         do
 133                 for b in 0 1 2 3 4 5 6 7 8 9 a b c d e f
 134                 do
 135                         : >00/$a$b
 136                 done
 137         done &&
 138         git add 00 &&
 139         git commit -m "256 files in 1 directory" &&
 140
 141         # duplicate it to get 65536 files in 256 directories
 142         subtree=$(git write-tree --prefix=00/) &&
 143         for c in 0 1 2 3 4 5 6 7 8 9 a b c d e f
 144         do
 145                 for d in 0 1 2 3 4 5 6 7 8 9 a b c d e f
 146                 do
 147                         echo "040000 tree $subtree      $c$d"
 148                 done
 149         done >tree &&
 150         tree=$(git mktree <tree) &&
 151
 152         # zip them
 153         git archive -o many.zip $tree &&
 154
 155         # check the number of entries in the ZIP file directory
 156         expr 65536 + 256 >expect &&
 157         "$ZIPINFO" many.zip | head -2 | sed -n "2s/.* //p" >actual &&
 158         test_cmp expect actual
 159 '
 160
 161 test_expect_success EXPENSIVE,UNZIP,UNZIP_ZIP64_SUPPORT \
 162         'zip archive bigger than 4GB' '
 163         # build string containing 65536 characters
 164         s=0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef &&
 165         s=$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s &&
 166         s=$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s &&
 167
 168         # create blob with a length of 65536 + 1 bytes
 169         blob=$(echo $s | git hash-object -w --stdin) &&
 170
 171         # create tree containing 65500 entries of that blob
 172         for i in $(test_seq 1 65500)
 173         do
 174                 echo "100644 blob $blob $i"
 175         done >tree &&
 176         tree=$(git mktree <tree) &&
 177
 178         # zip it, creating an archive a bit bigger than 4GB
 179         git archive -0 -o many-big.zip $tree &&
 180
 181         "$GIT_UNZIP" -t many-big.zip 9999 65500 &&
 182         "$GIT_UNZIP" -t many-big.zip
 183 '
 184
 185 test_expect_success EXPENSIVE,LONG_IS_64BIT,UNZIP,UNZIP_ZIP64_SUPPORT,ZIPINFO \
 186         'zip archive with files bigger than 4GB' '
 187         # Pack created with:
 188         #   dd if=/dev/zero of=file bs=1M count=4100 && git hash-object -w file
 189         mkdir -p .git/objects/pack &&
 190         (
 191                 cd .git/objects/pack &&
 192                 "$GIT_UNZIP" "$TEST_DIRECTORY"/t5004/big-pack.zip
 193         ) &&
 194         blob=754a93d6fada4c6873360e6cb4b209132271ab0e &&
 195         size=$(expr 4100 "*" 1024 "*" 1024) &&
 196
 197         # create a tree containing the file
 198         tree=$(echo "100644 blob $blob  big-file" | git mktree) &&
 199
 200         # zip it, creating an archive with a file bigger than 4GB
 201         git archive -o big.zip $tree &&
 202
 203         "$GIT_UNZIP" -t big.zip &&
 204         "$ZIPINFO" big.zip >big.lst &&
 205         grep $size big.lst
 206 '
 207
 208 test_done