list apis by channel info, e.g. dev, stable

chrome/common/extensions/docs/server2/api_models.py

 # Copyright 2013 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.
 
 import logging
 import os
 import posixpath
 
 from compiled_file_system import SingleFile
 from file_system import FileNotFoundError
 from future import Gettable, Future
 from schema_util import ProcessSchema
 from svn_constants import API_PATH
 from third_party.json_schema_compiler.model import Namespace, UnixName
 
 
 @SingleFile
 def _CreateAPIModel(path, data):
   schema = ProcessSchema(path, data)
   if os.path.splitext(path)[1] == '.json':
     schema = schema[0]
+  if not schema: return None
   return Namespace(schema, schema['namespace'])
 
 
 class APIModels(object):
   '''Tracks APIs and their Models.
   '''
 
   def __init__(self, features_bundle, compiled_fs_factory, file_system):
     self._features_bundle = features_bundle
     self._model_cache = compiled_fs_factory.Create(
@@ skipping 34 matching lines @@
                                              (API_PATH, file_name, ext))
                for ext in ('json', 'idl')]
     def resolve():
       for future in futures:
         try:
           return future.Get()
         except FileNotFoundError: pass
       # Propagate the first FileNotFoundError if neither were found.
       futures[0].Get()
     return Future(delegate=Gettable(resolve))
+
+  def IterModels(self):
+    return dict((name, self.GetModel(name))
+                 for name in self.GetNames()).iteritems()