GRIT: Enable variable expansion in filenames during HTML inlining.

grit/gather/interface.py

 #!/usr/bin/env python
 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 '''Interface for all gatherers.
 '''
 
 
 import os.path
@@ skipping 134 matching lines @@
     raise NotImplementedError()
 
   def SubstituteMessages(self, substituter):
     '''Applies substitutions to all messages in the gatherer.
 
     Args:
       substituter: a grit.util.Substituter object.
     '''
     pass
 
+  def SetFilenameExpansionFunction(self, fn):
+    '''Sets a function for rewriting filenames before gathering.'''
+    pass
+
   # TODO(benrg): Move this elsewhere, since it isn't part of the interface.
   def _LoadInputFile(self):
     '''A convenience function for subclasses that loads the contents of the
     input file.
     '''
     if isinstance(self.rc_file, types.StringTypes):
       path = self.GetInputPath()
       # Hack: some unit tests supply an absolute path and no root node.
       if not os.path.isabs(path):
         path = self.grd_node.ToRealPath(path)
       return util.ReadFile(path, self.encoding)
     else:
       return self.rc_file.read()