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      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 
     21 import optparse
     22 import sys
     23 
     24 import bisect_utils
     25 
     26 
     27 def main():
     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, args) = 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(opts,
     63           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())
     71