Index: branches/release-33/lib/MT/FileMgr/Local.pm
===================================================================
--- branches/release-33/lib/MT/FileMgr/Local.pm (revision 1174)
+++ branches/release-33/lib/MT/FileMgr/Local.pm (revision 1779)
@@ -120,4 +120,13 @@
 }
 
+sub file_mod_time {
+    my $fmgr = shift;
+    my ($file) = @_;
+    if (-e $file) {
+        return (stat($file))[9]; # modification timestamp
+    }
+    return undef;
+}
+
 sub content_is_updated {
     my $fmgr = shift;