Move chrome/app/policy into components/policy.

chrome/app/policy/PRESUBMIT.py

-# Copyright (c) 2012 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.
-
-# If this presubmit check fails or misbehaves, please complain to
-# mnissler@chromium.org, pastarmovj@chromium.org or joaodasilva@chromium.org.
-
-import itertools
-import sys
-import xml.dom.minidom
-
-def _GetPolicyTemplates(template_path):
-  # Read list of policies in the template. eval() is used instead of a JSON
-  # parser because policy_templates.json is not quite JSON, and uses some
-  # python features such as #-comments and '''strings'''. policy_templates.json
-  # is actually maintained as a python dictionary.
-  with open(template_path) as f:
-    template_data = eval(f.read(), {})
-  policies = ( policy
-               for policy in template_data['policy_definitions']
-               if policy['type'] != 'group' )
-  groups = ( policy['policies']
-             for policy in template_data['policy_definitions']
-             if policy['type'] == 'group' )
-  subpolicies = ( policy for group in groups for policy in group )
-  return list(itertools.chain(policies, subpolicies))
-
-def _CheckPolicyTemplatesSyntax(input_api, output_api):
-  filepath = input_api.os_path.join(input_api.PresubmitLocalPath(),
-                                    'policy_templates.json')
-  if any(f.AbsoluteLocalPath() == filepath
-         for f in input_api.AffectedFiles()):
-    old_sys_path = sys.path
-    try:
-      sys.path = [input_api.PresubmitLocalPath()] + sys.path
-      # Optimization: only load this when it's needed.
-      import syntax_check_policy_template_json
-      checker = syntax_check_policy_template_json.PolicyTemplateChecker()
-      if checker.Run([], filepath) > 0:
-        return [output_api.PresubmitError('Syntax error(s) in file:',
-                                          [filepath])]
-    finally:
-      sys.path = old_sys_path
-  return []
-
-
-def _CheckPolicyTestCases(input_api, output_api, policies):
-  # Read list of policies in chrome/test/data/policy/policy_test_cases.json.
-  root = input_api.change.RepositoryRoot()
-  policy_test_cases_file = input_api.os_path.join(
-      root, 'chrome', 'test', 'data', 'policy', 'policy_test_cases.json')
-  test_names = input_api.json.load(open(policy_test_cases_file)).keys()
-  tested_policies = frozenset(name for name in test_names if name[:2] != '--')
-  policy_names = frozenset(policy['name'] for policy in policies)
-
-  # Finally check if any policies are missing.
-  missing = policy_names - tested_policies
-  extra = tested_policies - policy_names
-  error_missing = ('Policy \'%s\' was added to policy_templates.json but not '
-                   'to src/chrome/test/data/policy/policy_test_cases.json. '
-                   'Please update both files.')
-  error_extra = ('Policy \'%s\' is tested by '
-                 'src/chrome/test/data/policy/policy_test_cases.json but is not'
-                 ' defined in policy_templates.json. Please update both files.')
-  results = []
-  for policy in missing:
-    results.append(output_api.PresubmitError(error_missing % policy))
-  for policy in extra:
-    results.append(output_api.PresubmitError(error_extra % policy))
-  return results
-
-
-def _CheckPolicyHistograms(input_api, output_api, policies):
-  root = input_api.change.RepositoryRoot()
-  histograms = input_api.os_path.join(
-      root, 'tools', 'metrics', 'histograms', 'histograms.xml')
-  with open(histograms) as f:
-    tree = xml.dom.minidom.parseString(f.read())
-  enums = (tree.getElementsByTagName('histogram-configuration')[0]
-               .getElementsByTagName('enums')[0]
-               .getElementsByTagName('enum'))
-  policy_enum = [e for e in enums
-                 if e.getAttribute('name') == 'EnterprisePolicies'][0]
-  policy_ids = frozenset([int(e.getAttribute('value'))
-                          for e in policy_enum.getElementsByTagName('int')])
-
-  error_missing = ('Policy \'%s\' was added to policy_templates.json but not '
-                   'to src/tools/metrics/histograms/histograms.xml. '
-                   'Please update both files.')
-  results = []
-  for policy in policies:
-    if policy['id'] not in policy_ids:
-      results.append(output_api.PresubmitError(error_missing % policy['name']))
-  return results
-
-
-def _CommonChecks(input_api, output_api):
-  results = []
-  results.extend(_CheckPolicyTemplatesSyntax(input_api, output_api))
-
-  os_path = input_api.os_path
-  local_path = input_api.PresubmitLocalPath()
-  template_path = os_path.join(local_path, 'policy_templates.json')
-  affected_files = input_api.AffectedFiles()
-  if any(f.AbsoluteLocalPath() == template_path for f in affected_files):
-    policies = _GetPolicyTemplates(template_path)
-    results.extend(_CheckPolicyTestCases(input_api, output_api, policies))
-    results.extend(_CheckPolicyHistograms(input_api, output_api, policies))
-
-  return results
-
-
-def CheckChangeOnUpload(input_api, output_api):
-  return _CommonChecks(input_api, output_api)
-
-
-def CheckChangeOnCommit(input_api, output_api):
-  return _CommonChecks(input_api, output_api)