Closes #25: Added utf-8 decoding to all places where the pathscanner …

…might try to do os.listdirs()

code/pathscanner.py

@@ -98,6 +98,7 @@ def initial_scan(self, path):
         
         Returns False if there is already data available for this path.
         """
+        path = path.decode('utf-8')
 
         # Check if there really isn't any data available for this path.
         self.dbcur.execute("SELECT COUNT(filename) FROM %s WHERE path=?" % (self.table), (path,))
@@ -110,6 +111,7 @@ def initial_scan(self, path):
 
     def purge_path(self, path):
         """purge the metadata for a given path and all its subdirectories"""
+        path = path.decode('utf-8')
 
         self.dbcur.execute("DELETE FROM %s WHERE path LIKE ?" % (self.table), (path + "%",))
         self.dbcur.execute("VACUUM %s" % (self.table))
@@ -177,6 +179,7 @@ def scan(self, path):
         - Can detect deleted directory trees.
         """
 
+        path = path.decode('utf-8')
         # Fetch the old metadata from the DB.
         self.dbcur.execute("SELECT filename, mtime FROM %s WHERE path=?" % (self.table), (path, ))
         old_files = {}
@@ -218,6 +221,7 @@ def scan(self, path):
 
     def scan_tree(self, path):
         """scan a directory tree for changes"""
+        path = path.decode('utf-8')
 
         # Scan the current directory for changes.
         result = self.scan(path)