tools/prepare-bisect-perf-regression.py

   1 #!/usr/bin/env python
   2 # Copyright (c) 2013 The Chromium Authors. All rights reserved.
   3 # Use of this source code is governed by a BSD-style license that can be
   4 # found in the LICENSE file.
   5
   6 """Prepare Performance Test Bisect Tool
   7
   8 This script is used by a trybot to create a working directory and sync an
   9 initial copy of the depot for use in bisecting performance regressions.
  10
  11 An example usage:
  12
  13 ./tools/prepare-bisect-perf-regressions.py --working_directory "~/builds"
  14   --output_buildbot_annotations
  15
  16 Would result in creating ~/builds/bisect and then populating it with a copy of
  17 the depot.
  18 """
  19
  20 import optparse
  21 import sys
  22
  23 from auto_bisect import bisect_utils
  24
  25
  26 def main():
  27   """Does an initial checkout of Chromium then exits."""
  28
  29   usage = ('%prog [options] [-- chromium-options]\n'
  30            'Prepares a temporary depot for use on a trybot.')
  31
  32   parser = optparse.OptionParser(usage=usage)
  33
  34   parser.add_option('-w', '--working_directory',
  35                     type='str',
  36                     help='Path to the working directory where the script will '
  37                     'do an initial checkout of the chromium depot. The '
  38                     'files will be placed in a subdirectory "bisect" under '
  39                     'working_directory and that will be used to perform the '
  40                     'bisection.')
  41   parser.add_option('--output_buildbot_annotations',
  42                     action='store_true',
  43                     help='Add extra annotation output for buildbot.')
  44   parser.add_option('--target_platform',
  45                     type='choice',
  46                     choices=['chromium', 'cros', 'android'],
  47                     default='chromium',
  48                     help='The target platform. Choices are "chromium" (current '
  49                     'platform), "cros", or "android". If you specify something '
  50                     'other than "chromium", you must be properly set up to '
  51                     'build that platform.')
  52   opts, _ = parser.parse_args()
  53
  54   if not opts.working_directory:
  55     print 'Error: missing required parameter: --working_directory'
  56     print
  57     parser.print_help()
  58     return 1
  59
  60   if not bisect_utils.CheckIfBisectDepotExists(opts):
  61     try:
  62       bisect_utils.CreateBisectDirectoryAndSetupDepot(
  63           opts, bisect_utils.DEFAULT_GCLIENT_CUSTOM_DEPS)
  64     except RuntimeError:
  65       return 1
  66   return 0
  67
  68
  69 if __name__ == '__main__':
  70   sys.exit(main())