Fix directory_cache

utils.xml_generator needs to be saved/read

Author: iMichka

pygccxml/parser/directory_cache.py

@@ -24,7 +24,9 @@
     import cPickle as pickle
 except ImportError:
     import pickle
+
 from . import declarations_cache
+from .. import utils
 
 
 class index_entry_t(object):
@@ -238,6 +240,10 @@ def _load(self):
             self.__index = {}
             self.__filename_rep = filename_repository_t(self.__sha1_sigs)
 
+        # Read the xml generator from the cache and set it
+        with open(os.path.join(self.__dir, "gen.dat"), "rb") as gen_file:
+            utils.xml_generator = gen_file.read()
+
         self.__modified_flag = False
 
     def _save(self):
@@ -255,6 +261,11 @@ def _save(self):
                 indexfilename,
                 (self.__index,
                  self.__filename_rep))
+
+            # Read the xml generator from the cache and set it
+            with open(os.path.join(self.__dir, "gen.dat"), "wb") as gen_file:
+                gen_file.write(utils.xml_generator)
+
             self.__modified_flag = False
 
     def _read_file(self, filename):