chrome/common/extensions/api/PRESUBMIT.py

   1 # Copyright 2013 The Chromium Authors. All rights reserved.
   2 # Use of this source code is governed by a BSD-style license that can be
   3 # found in the LICENSE file.
   4
   5 def _GetJSONParseError(input_api, filename):
   6   try:
   7     contents = input_api.ReadFile(filename)
   8     json_comment_eater = input_api.os_path.join(
   9         input_api.PresubmitLocalPath(),
  10         '..', '..', '..', '..', 'tools',
  11         'json_comment_eater', 'json_comment_eater.py')
  12     process = input_api.subprocess.Popen(
  13         [input_api.python_executable, json_comment_eater],
  14         stdin=input_api.subprocess.PIPE,
  15         stdout=input_api.subprocess.PIPE,
  16         universal_newlines=True)
  17     (nommed, _) = process.communicate(input=contents)
  18     input_api.json.loads(nommed)
  19   except ValueError as e:
  20     return e
  21   return None
  22
  23
  24 def _GetIDLParseError(input_api, filename):
  25   idl_schema = input_api.os_path.join(
  26       input_api.PresubmitLocalPath(),
  27       '..', '..', '..', '..', 'tools',
  28       'json_schema_compiler', 'idl_schema.py')
  29   process = input_api.subprocess.Popen(
  30       [input_api.python_executable, idl_schema, filename],
  31       stdout=input_api.subprocess.PIPE,
  32       stderr=input_api.subprocess.PIPE,
  33       universal_newlines=True)
  34   (_, error) = process.communicate()
  35   return error or None
  36
  37
  38 def _GetParseErrors(input_api, output_api):
  39   # Run unit tests.
  40   results = []
  41   if input_api.AffectedFiles(
  42       file_filter=lambda f: 'PRESUBMIT' in f.LocalPath()):
  43     results = input_api.canned_checks.RunUnitTestsInDirectory(
  44         input_api, output_api, '.', whitelist=[r'^PRESUBMIT_test\.py$'])
  45
  46   actions = {
  47     '.idl': _GetIDLParseError,
  48     '.json': _GetJSONParseError,
  49   }
  50
  51   def get_action(affected_file):
  52     filename = affected_file.LocalPath()
  53     return actions.get(input_api.os_path.splitext(filename)[1])
  54
  55   for affected_file in input_api.AffectedFiles(
  56       file_filter=
  57           lambda f: "test_presubmit" not in f.LocalPath() and get_action(f),
  58       include_deletes=False):
  59     parse_error = get_action(affected_file)(input_api,
  60                                             affected_file.AbsoluteLocalPath())
  61     if parse_error:
  62       results.append(output_api.PresubmitError('%s could not be parsed: %s' %
  63           (affected_file.LocalPath(), parse_error)))
  64   return results
  65
  66
  67 def CheckChangeOnUpload(input_api, output_api):
  68   return _GetParseErrors(input_api, output_api)
  69
  70
  71 def CheckChangeOnCommit(input_api, output_api):
  72   return _GetParseErrors(input_api, output_api)