Cross-repo recipe package system.

third_party/recipe_engine/lint_test.py

 #!/usr/bin/env python
 # Copyright 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.
 
 """Tests that recipes are on their best behavior.
 
 Checks that recipes only import modules from a whitelist.  Imports are
 generally not safe in recipes if they depend on the platform, since
 e.g. you can run a recipe simulation for a Windows recipe on Linux.
 """
 
 # TODO(luqui): Implement lint for recipe modules also.
 
 import re
 import os
 import sys
 import types
 
 
 MODULES_WHITELIST = [
   r'base64',
   r'collections',
   r'contextlib',
   r'datetime',
+  r'itertools',
   r'json',
   r'math',
   r're',
   r'urlparse',
 ]
 
 
 class ImportViolationError(Exception):
   pass
 
@@ skipping 15 matching lines @@
       module_name = val.__name__
       for pattern in whitelist:
         if pattern.match(val.__name__):
           break
       else:
         yield ('In %s:\n'
                '  Non-whitelisted import of %s' %
                (recipe_path, module_name))
 
 
-def main(universe, whitelist=[]):
+def main(package_pyl, whitelist=[]):
+  from . import loader
+  from . import package
+
+  if isinstance(package_pyl, package.PackageDeps):
+    package_deps = package_pyl
+  else:
+    package_deps = package.PackageDeps.create(package_pyl)
+
   whitelist = map(re.compile, MODULES_WHITELIST + whitelist)
+  universe = loader.RecipeUniverse(package_deps)
 
   errors = []
   for recipe_path, recipe_name in universe.loop_over_recipes():
     errors.extend(ImportsTest(recipe_path, recipe_name, whitelist, universe))
 
   if errors:
     raise TestFailure('\n'.join(map(str, errors)))