recipe_engine: change resource API to use repo root

recipe_engine/loader.py

 # Copyright 2013-2015 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 collections
 import contextlib
 import imp
 import inspect
 import os
 import sys
 
 from .config import ConfigContext, ConfigGroupSchema
-from .config_types import Path, ModuleBasePath, PackageBasePath
+from .config_types import Path, ModuleBasePath, PackageRepoBasePath
 from .config_types import RECIPE_MODULE_PREFIX
 from .recipe_api import RecipeApi, RecipeApiPlain, RecipeScriptApi
 from .recipe_api import Property, BoundProperty
 from .recipe_api import UndefinedPropertyException, PROPERTY_SENTINEL
 from .recipe_test_api import RecipeTestApi, DisabledTestData
 from .util import scan_directory
 
 
 class LoaderError(Exception):
   """Raised when something goes wrong loading recipes or modules."""
@@ skipping 325 matching lines @@
   API, CONFIG_CTX, TEST_API, and PROPERTIES.
 
   |submod| is a recipe module (akin to python package) with submodules such as
   'api', 'config', 'test_api'. This function scans through dicts of that
   submodules to find subclasses of RecipeApi, RecipeTestApi, etc.
   """
   fullname = '%s/%s' % (universe_view.package.name, name)
   submod.NAME = name
   submod.UNIQUE_NAME = fullname
   submod.MODULE_DIRECTORY = Path(ModuleBasePath(submod))
-  submod.PACKAGE_DIRECTORY = Path(PackageBasePath(universe_view.package))
+  submod.PACKAGE_REPO_ROOT = Path(PackageRepoBasePath(universe_view.package))
   submod.CONFIG_CTX = getattr(submod, 'CONFIG_CTX', None)
 
   if hasattr(submod, 'config'):
     for v in submod.config.__dict__.itervalues():
       if isinstance(v, ConfigContext):
         assert not submod.CONFIG_CTX, (
           'More than one configuration context: %s, %s' %
           (submod.config, submod.CONFIG_CTX))
         submod.CONFIG_CTX = v
     assert submod.CONFIG_CTX, 'Config file, but no config context?'
@@ skipping 159 matching lines @@
     modapi = (getattr(mod, 'TEST_API', None) or RecipeTestApi)(module=mod)
     for k,v in deps.iteritems():
       setattr(modapi.m, k, v)
     return modapi
 
   mapper = DependencyMapper(instantiator)
   api = RecipeTestApi(module=None)
   for k,v in toplevel_deps.iteritems():
     setattr(api, k, mapper.instantiate(v))
   return api