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'json',
-  r'math',
-  r're',
-  r'urlparse',
-]
-
-
-class ImportViolationError(Exception):
-  pass
-
-
-class TestFailure(Exception):
-  pass
-
-
-def ImportsTest(recipe_path, recipe_name, whitelist, universe):
-  """Tests that recipe_name only uses allowed imports.
-
-  Returns a list of errors, or an empty list if there are no errors (duh).
-  """
-
-  recipe = universe.load_recipe(recipe_name)
-  for attr in dir(recipe):
-    val = getattr(recipe, attr)
-    if isinstance(val, types.ModuleType):
-      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=[]):
-  whitelist = map(re.compile, MODULES_WHITELIST + whitelist)
-
-  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)))
-