Quick spelling clean-up in the auto-bisect code.

tools/run-bisect-perf-regression.py

 #!/usr/bin/env python
 # Copyright (c) 2013 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.
 
 """Run Performance Test Bisect Tool
 
-This script is used by a trybot to run the src/tools/bisect-perf-regression.py
+This script is used by a try bot to run the src/tools/bisect-perf-regression.py
 script with the parameters specified in run-bisect-perf-regression.cfg. It will
 check out a copy of the depot in a subdirectory 'bisect' of the working
 directory provided, and run the bisect-perf-regression.py script there.
 
 """
 
 import imp
 import optparse
 import os
 import platform
@@ skipping 194 matching lines @@
   opts_dict['build_preference'] = 'ninja'
   opts_dict['output_buildbot_annotations'] = True
 
   if '--browser=cros' in config['command']:
     opts_dict['target_platform'] = 'cros'
 
     if os.environ[CROS_BOARD_ENV] and os.environ[CROS_IP_ENV]:
       opts_dict['cros_board'] = os.environ[CROS_BOARD_ENV]
       opts_dict['cros_remote_ip'] = os.environ[CROS_IP_ENV]
     else:
-      raise RuntimeError('Cros build selected, but BISECT_CROS_IP or'
+      raise RuntimeError('CrOS build selected, but BISECT_CROS_IP or'
           'BISECT_CROS_BOARD undefined.')
   elif 'android' in config['command']:
     if 'android-chrome-shell' in config['command']:
       opts_dict['target_platform'] = 'android'
     elif 'android-chrome' in config['command']:
       opts_dict['target_platform'] = 'android-chrome'
     else:
       opts_dict['target_platform'] = 'android'
 
   return bisect.BisectOptions.FromDict(opts_dict)
@@ skipping 30 matching lines @@
       opts.command, opts.metric, reset_on_first_run=True, results_label='Patch')
 
   if results_with_patch[1]:
     raise RuntimeError('Patched version failed to run performance test.')
 
   bisect_utils.OutputAnnotationStepClosed()
 
   bisect_utils.OutputAnnotationStepStart('Reverting Patch')
   # TODO: When this is re-written to recipes, this should use bot_update's
   # revert mechanism to fully revert the client. But for now, since we know that
-  # the perf trybot currently only supports src/ and src/third_party/WebKit, we
+  # the perf try bot currently only supports src/ and src/third_party/WebKit, we
   # simply reset those two directories.
   bisect_utils.CheckRunGit(['reset', '--hard'])
   bisect_utils.CheckRunGit(['reset', '--hard'],
                            os.path.join('third_party', 'WebKit'))
   bisect_utils.OutputAnnotationStepClosed()
 
   bisect_utils.OutputAnnotationStepStart('Building Without Patch')
 
   if bisect_utils.RunGClient(['runhooks']):
     raise RuntimeError('Failed to run gclient runhooks')
 
   if not b.BuildCurrentRevision('chromium'):
     raise RuntimeError('Unpatched version failed to build.')
 
   bisect_utils.OutputAnnotationStepClosed()
   bisect_utils.OutputAnnotationStepStart('Running Without Patch')
 
   results_without_patch = b.RunPerformanceTestAndParseResults(
       opts.command, opts.metric, upload_on_last_run=True, results_label='ToT')
 
   if results_without_patch[1]:
     raise RuntimeError('Unpatched version failed to run performance test.')
 
   # Find the link to the cloud stored results file.
   output = results_without_patch[2]
   cloud_file_link = [t for t in output.splitlines()
       if 'storage.googleapis.com/chromium-telemetry/html-results/' in t]
   if cloud_file_link:
     # What we're getting here is basically "View online at http://..." so parse
-    # out just the url portion.
+    # out just the URL portion.
     cloud_file_link = cloud_file_link[0]
     cloud_file_link = [t for t in cloud_file_link.split(' ')
         if 'storage.googleapis.com/chromium-telemetry/html-results/' in t]
-    assert cloud_file_link, "Couldn't parse url from output."
+    assert cloud_file_link, 'Couldn\'t parse URL from output.'
     cloud_file_link = cloud_file_link[0]
   else:
     cloud_file_link = ''
 
   # Calculate the % difference in the means of the 2 runs.
   percent_diff_in_means = None
   std_err = None
   if (results_with_patch[0].has_key('mean') and
       results_with_patch[0].has_key('values')):
     percent_diff_in_means = (results_with_patch[0]['mean'] /
@@ skipping 116 matching lines @@
     if config.get('gs_bucket') and platform.release() == 'XP':
       print ('Goma doesn\'t have a win32 binary, therefore it is not supported '
              'on Windows XP platform. Please refer to crbug.com/330900.')
       path_to_goma = None
     cmd.append('--use_goma')
 
   if path_to_extra_src:
     cmd.extend(['--extra_src', path_to_extra_src])
 
   # These flags are used to download build archives from cloud storage if
-  # available, otherwise will post a try_job_http request to build it on
-  # tryserver.
+  # available, otherwise will post a try_job_http request to build it on the
+  # try server.
   if config.get('gs_bucket'):
     if config.get('builder_host') and config.get('builder_port'):
       cmd.extend(['--gs_bucket', config['gs_bucket'],
                   '--builder_host', config['builder_host'],
                   '--builder_port', config['builder_port']
                  ])
     else:
       print ('Error: Specified gs_bucket, but missing builder_host or '
              'builder_port information in config.')
       return 1
@@ skipping 19 matching lines @@
   print
   for k, v in config.iteritems():
     print '  %s : %s' % (k, v)
   print
   bisect_utils.OutputAnnotationStepClosed()
 
 
 def _OptionParser():
   """Returns the options parser for run-bisect-perf-regression.py."""
   usage = ('%prog [options] [-- chromium-options]\n'
-           'Used by a trybot to run the bisection script using the parameters'
+           'Used by a try bot to run the bisection script using the parameters'
            ' provided in the run-bisect-perf-regression.cfg file.')
   parser = optparse.OptionParser(usage=usage)
   parser.add_option('-w', '--working_directory',
                     type='str',
                     help='A working directory to supply to the bisection '
                     'script, which will use it as the location to checkout '
                     'a copy of the chromium depot.')
   parser.add_option('-p', '--path_to_goma',
                     type='str',
                     help='Path to goma directory. If this is supplied, goma '
@@ skipping 68 matching lines @@
           config, current_dir, opts.path_to_goma)
 
   print ('Error: Could not load config file. Double check your changes to '
          'run-bisect-perf-regression.cfg or run-perf-test.cfg for syntax '
          'errors.\n')
   return 1
 
 
 if __name__ == '__main__':
   sys.exit(main())