# Copyright 2012 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

"""Presubmit script for changes affecting tools/json_schema_compiler/

See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
for more details about the presubmit API built into depot_tools.
"""

import sys

FILE_PATTERN = [ r'.+_test.py$' ]


def _CheckExterns(input_api, output_api):
  """Make sure tool changes update the generated externs."""
  original_sys_path = sys.path
  try:
    sys.path.insert(0, input_api.PresubmitLocalPath())
    from generate_all_externs import Generate
  finally:
    sys.path = original_sys_path

  return Generate(input_api, output_api, dryrun=True)


def CheckChangeOnUpload(input_api, output_api):
  ret = input_api.canned_checks.RunUnitTestsInDirectory(
      input_api, output_api, '.', files_to_check=FILE_PATTERN)
  ret += _CheckExterns(input_api, output_api)
  return ret


def CheckChangeOnCommit(input_api, output_api):
  ret = input_api.canned_checks.RunUnitTestsInDirectory(
      input_api, output_api, '.', files_to_check=FILE_PATTERN)
  ret += _CheckExterns(input_api, output_api)
  return ret