# 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.

"""Chromium presubmit script for src/base.

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

def _CheckNoInterfacesInBase(input_api, output_api):
  """Checks to make sure no files in libbase.a have |@interface|."""
  pattern = input_api.re.compile(r'^\s*@interface', input_api.re.MULTILINE)
  files = []
  for f in input_api.AffectedSourceFiles(input_api.FilterSourceFile):
    if (f.LocalPath().startswith('base/') and
        not "/test/" in f.LocalPath() and
        not f.LocalPath().endswith('_unittest.mm') and
        not f.LocalPath().endswith('mac/sdk_forward_declarations.h')):
      contents = input_api.ReadFile(f)
      if pattern.search(contents):
        files.append(f)

  if len(files):
    return [ output_api.PresubmitError(
        'Objective-C interfaces or categories are forbidden in libbase. ' +
        'See http://groups.google.com/a/chromium.org/group/chromium-dev/' +
        'browse_thread/thread/efb28c10435987fd',
        files) ]
  return []


def _CommonChecks(input_api, output_api):
  """Checks common to both upload and commit."""
  results = []
  results.extend(_CheckNoInterfacesInBase(input_api, output_api))
  return results

def CheckChangeOnUpload(input_api, output_api):
  results = []
  results.extend(_CommonChecks(input_api, output_api))
  return results


def CheckChangeOnCommit(input_api, output_api):
  results = []
  results.extend(_CommonChecks(input_api, output_api))
  return results


def GetPreferredTryMasters(project, change):
  return {
    'tryserver.chromium': {
      'linux_chromium_rel': set(['defaulttests']),
      'mac_chromium_rel': set(['defaulttests']),
      'win_chromium_rel': set(['defaulttests']),
    }
  }
