git-p4: ignore apple filetype

Revert 97a21ca (git-p4: stop ignoring apple filetype, 2011-10-16)
and add a test case.

Reported-by: Michael Wookey <michaelwookey@gmail.com>
Signed-off-by: Pete Wyckoff <pw@padd.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

contrib/fast-import/git-p4

@@ -1272,6 +1272,19 @@ class P4Sync(Command, P4UserMap):
             text = p4_read_pipe('print -q -o - "%s"' % file['depotFile'])
             contents = [ text ]
 
+        if type_base == "apple":
+            # Apple filetype files will be streamed as a concatenation of
+            # its appledouble header and the contents.  This is useless
+            # on both macs and non-macs.  If using "print -q -o xx", it
+            # will create "xx" with the data, and "%xx" with the header.
+            # This is also not very useful.
+            #
+            # Ideally, someday, this script can learn how to generate
+            # appledouble files directly and import those to git, but
+            # non-mac machines can never find a use for apple filetype.
+            print "\nIgnoring apple filetype file %s" % file['depotFile']
+            return
+
         # Perhaps windows wants unicode, utf16 newlines translated too;
         # but this is not doing it.
         if self.isWindows and type_base == "text":

t/t9802-git-p4-filetype.sh

@@ -101,6 +101,37 @@ test_expect_success 'keyword file test' '
 	)
 '
 
+build_gendouble() {
+	cat >gendouble.py <<-\EOF
+	import sys
+	import struct
+	import array
+
+	s = array.array("c", '\0' * 26)
+	struct.pack_into(">L", s,  0, 0x00051607)  # AppleDouble
+	struct.pack_into(">L", s,  4, 0x00020000)  # version 2
+	s.tofile(sys.stdout)
+	EOF
+}
+
+test_expect_success 'ignore apple' '
+	test_when_finished rm -f gendouble.py &&
+	build_gendouble &&
+	(
+		cd "$cli" &&
+		test-genrandom apple 1024 >double.png &&
+		"$PYTHON_PATH" "$TRASH_DIRECTORY/gendouble.py" >%double.png &&
+		p4 add -t apple double.png &&
+		p4 submit -d appledouble
+	) &&
+	test_when_finished cleanup_git &&
+	"$GITP4" clone --dest="$git" //depot@all &&
+	(
+		cd "$git" &&
+		test ! -f double.png
+	)
+'
+
 test_expect_success 'kill p4d' '
 	kill_p4d
 '