--- a/utils.py	Wed Feb 11 02:16:11 2009 +0200
+++ b/utils.py	Wed Feb 11 02:21:43 2009 +0200
@@ -3,6 +3,7 @@
 """
 
 import datetime, calendar, pytz
+import os, errno
 
 from qmsk.web.urltree import URLType
 
@@ -91,3 +92,25 @@
 
     return calendar.timegm(dt.utctimetuple())
 
+def mtime (path, ignore_missing=False) :
+    """
+        Gets the mtime for the given path as an UTC datetime, or None, if the file doesn't exist and ignore_missing
+    """
+
+    try :
+        # stat
+        st = os.stat(path)
+    
+    # trap IOError
+    except os.error, e :
+        # ENOENT?
+        if ignore_missing and e.errno == errno.ENOENT :
+            return None
+
+        else :
+            raise
+
+    else :
+        # decode
+        return from_utc_timestamp(st.st_mtime)
+