Smarter "new interesting code" detection.

tools/testing/webdriver_test_setup.py

 #!/usr/bin/python
 
 # Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 # Run to install the necessary components to run webdriver on the buildbots or
 # on your local machine. 
 # Note: The setup steps can be done fairly easily by hand. This script is 
 # intended to simply and reduce the time for setup since there are a fair number
@@ skipping 20 matching lines @@
   p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, 
       stdin=subprocess.PIPE, shell=True)
   output, stderr = p.communicate(input=stdin)
   if output:
     print output
   if stderr:
     print stderr
 
 def parse_args():
   parser = optparse.OptionParser()
-  parser.add_option('--firefox', '-f', dest='firefox', help="Don't install "
-      "Firefox", action='store_true', default=False)
-  parser.add_option('--chromedriver', '-c', dest='chromedriver', help="Don't "
-      "install chromedriver.", action='store_true', default=False)
-  parser.add_option('--seleniumrc', '-s', dest='seleniumrc', help="Don't "
-      "install the Selenium RC server (used for Safari and Opera tests).",
-      action='store_true', default=False)
-  parser.add_option('--python', '-p', dest='python', help="Don't "
-      "install Selenium python bindings.", action='store_true', default=False)
+  parser.add_option('--firefox', '-f', dest='firefox',
+      help="Don't install Firefox", action='store_true', default=False)
+  parser.add_option('--chromedriver', '-c', dest='chromedriver',
+      help="Don't install chromedriver.", action='store_true', default=False)
+  parser.add_option('--seleniumrc', '-s', dest='seleniumrc', 
+      help="Don't install the Selenium RC server (used for Safari and Opera "
+           "tests).", action='store_true', default=False)
+  parser.add_option('--python', '-p', dest='python',
+      help="Don't install Selenium python bindings.", action='store_true',
+      default=False)
   parser.add_option('--buildbot', '-b', dest='buildbot', action='store_true',
-      help='Perform a buildbot selenium setup (buildbots have a different' + \
+      help='Perform a buildbot selenium setup (buildbots have a different' +
       'location for their python executable).', default=False)
   args, ignored = parser.parse_args()
   return args
 
 def find_depot_tools_location(is_buildbot):
   """Depot_tools is our default install location for chromedriver, so we find
   its location on the filesystem.
   Arguments:
   is_buildbot - True if we are running buildbot machine setup (we can't detect
       this automatically because this script is not run at build time).
@@ skipping 217 matching lines @@
         lambda x: 'chromedriver_%(os)s_%(version)s.zip' % x).run()
   if not args.seleniumrc:
     GoogleCodeInstaller('selenium', os.path.dirname(os.path.abspath(__file__)),
         lambda x: 'selenium-server-standalone-%(version)s.jar' % x).run()
 
   if not args.firefox:
     FirefoxInstaller().run()
 
 if __name__ == '__main__':
   main()