tools/auto_bisect/PRESUBMIT.py

   1 # Copyright (c) 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 """Top-level presubmit script for auto-bisect.
   6
   7 See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts for
   8 details on the presubmit API.
   9 """
  10
  11 import imp
  12 import subprocess
  13 import os
  14
  15 # Paths to bisect config files relative to this script.
  16 CONFIG_FILES = [
  17     'bisect.cfg',
  18     os.path.join(os.path.pardir, 'run-perf-test.cfg'),
  19 ]
  20
  21
  22 def CheckChangeOnUpload(input_api, output_api):
  23   return _CommonChecks(input_api, output_api)
  24
  25
  26 def CheckChangeOnCommit(input_api, output_api):
  27   return _CommonChecks(input_api, output_api)
  28
  29
  30 def _CommonChecks(input_api, output_api):
  31   """Does all presubmit checks for auto-bisect."""
  32   results = []
  33   results.extend(_CheckAllConfigFiles(input_api, output_api))
  34   results.extend(_RunUnitTests(input_api, output_api))
  35   results.extend(_RunPyLint(input_api, output_api))
  36   return results
  37
  38
  39 def _CheckAllConfigFiles(input_api, output_api):
  40   """Checks all bisect config files and returns a list of presubmit results."""
  41   results = []
  42   script_path = input_api.PresubmitLocalPath()
  43   for config_file in CONFIG_FILES:
  44     file_path = os.path.join(script_path, config_file)
  45     results.extend(_CheckConfigFile(file_path, output_api))
  46   return results
  47
  48
  49 def _CheckConfigFile(file_path, output_api):
  50   """Checks one bisect config file and returns a list of presubmit results."""
  51   try:
  52     config_file = imp.load_source('config', file_path)
  53   except IOError as e:
  54     warning = 'Failed to read config file %s: %s' % (file_path, str(e))
  55     return [output_api.PresubmitError(warning, items=[file_path])]
  56
  57   if not hasattr(config_file, 'config'):
  58     warning = 'Config file has no "config" global variable: %s' % str(e)
  59     return [output_api.PresubmitError(warning, items=[file_path])]
  60
  61   if type(config_file.config) is not dict:
  62     warning = 'Config file "config" global variable is not dict: %s' % str(e)
  63     return [output_api.PresubmitError(warning, items=[file_path])]
  64
  65   for k, v in config_file.config.iteritems():
  66     if v != '':
  67       warning = 'Non-empty value in config dict: %s: %s' % (repr(k), repr(v))
  68       warning += ('\nThe bisection config file should only contain a config '
  69                   'dict with empty fields. Changes to this file should not '
  70                   'be submitted.')
  71       return [output_api.PresubmitError(warning, items=[file_path])]
  72
  73   return []
  74
  75
  76 def _RunUnitTests(input_api, output_api):
  77   """Runs unit tests for auto-bisect."""
  78   repo_root = input_api.change.RepositoryRoot()
  79   auto_bisect_dir = os.path.join(repo_root, 'tools', 'auto_bisect')
  80   test_runner = os.path.join(auto_bisect_dir, 'run_tests')
  81   return_code = subprocess.call(['python', test_runner])
  82   if return_code:
  83     message = 'Auto-bisect unit tests did not all pass.'
  84     return [output_api.PresubmitError(message)]
  85   return []
  86
  87
  88 def _RunPyLint(input_api, output_api):
  89   """Runs unit tests for auto-bisect."""
  90   telemetry_path = os.path.join(
  91       input_api.PresubmitLocalPath(), os.path.pardir, 'telemetry')
  92   mock_path = os.path.join(
  93       input_api.PresubmitLocalPath(), os.path.pardir, os.path.pardir,
  94       'third_party', 'pymock')
  95   disabled_warnings = [
  96       'relative-import',
  97   ]
  98   tests = input_api.canned_checks.GetPylint(
  99       input_api, output_api, disabled_warnings=disabled_warnings,
 100       extra_paths_list=[telemetry_path, mock_path])
 101   return input_api.RunTests(tests)