IDL build: Split global objects computation from global constructors computation

Source/bindings/scripts/utilities.py

 # Copyright 2014 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.
 
 """Utility functions (file reading, simple IDL parsing by regexes) for IDL build.
 
 Design doc: http://www.chromium.org/developers/design-documents/idl-build
 """
 
 import os
 import cPickle as pickle
 import re
 import string
 
 
 class IdlBadFilenameError(Exception):
     """Raised if an IDL filename disagrees with the interface name in the file."""
     pass
 
 
+def idl_filename_to_interface_name(idl_filename):
+    # interface name is the root of the basename: InterfaceName.idl
+    return os.path.splitext(os.path.basename(idl_filename))[0]
+
+
 ################################################################################
 # Basic file reading/writing
 ################################################################################
 
 def get_file_contents(filename):
     with open(filename) as f:
         return f.read()
 
 
+def read_file_to_list(filename):
+    """Returns a list of (stripped) lines for a given filename."""
+    with open(filename) as f:
+        return [line.rstrip('\n') for line in f]
+
+
 def write_file(new_text, destination_filename, only_if_changed):
     if only_if_changed and os.path.isfile(destination_filename):
         with open(destination_filename) as destination_file:
             if destination_file.read() == new_text:
                 return
     with open(destination_filename, 'w') as destination_file:
         destination_file.write(new_text)
 
 
 def write_pickle_file(pickle_filename, data, only_if_changed):
@@ skipping 105 matching lines @@
 
 def get_put_forward_interfaces_from_idl(file_contents):
     put_forwards_pattern = (r'\[[^\]]*PutForwards=[^\]]*\]\s+'
                             r'readonly\s+'
                             r'attribute\s+'
                             r'(\w+)')
     return sorted(set(match.group(1)
                       for match in re.finditer(put_forwards_pattern,
                                                file_contents,
                                                flags=re.DOTALL)))