Allow for a new flag (--log_file) which lets pyauto log to a file instead of ...

chrome/test/pyautolib/pyauto.py

 #!/usr/bin/python
 
 # Copyright (c) 2010 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.
 
 """PyAuto: Python Interface to Chromium's Automation Proxy.
 
 PyAuto uses swig to expose Automation Proxy interfaces to Python.
 For complete documentation on the functionality available,
@@ skipping 646 matching lines @@
     self._ParseArgs()
     self._Run()
 
   def _ParseArgs(self):
     """Parse command line args."""
     parser = optparse.OptionParser()
     parser.add_option(
         '-v', '--verbose', action='store_true', default=False,
         help='Make PyAuto verbose.')
     parser.add_option(
+        '', '--log-file', type='string', default=None,
+        help='Provide a path to a file to which the logger will log')
+    parser.add_option(
         '-D', '--wait-for-debugger', action='store_true', default=False,
         help='Block PyAuto on startup for attaching debugger.')
     parser.add_option(
         '', '--chrome-flags', type='string', default='',
         help='Flags passed to Chrome.  This is in addition to the usual flags '
              'like suppressing first-run dialogs, enabling automation.  '
              'See chrome/common/chrome_switches.cc for the list of flags '
              'chrome understands.')
     parser.add_option(
         '', '--list-missing-tests', action='store_true', default=False,
         help='Print a list of tests not included in PYAUTO_TESTS, and exit')
     parser.add_option(
         '', '--repeat', type='int', default=1,
         help='Number of times to repeat the tests. Useful to determine '
              'flakiness. Defaults to 1.')
 
     self._options, self._args = parser.parse_args()
 
-    # Setup logging
+    # Setup logging - start with defaults
+    level = logging.WARNING
+    format = None
+
     if self._options.verbose:
-      logging.basicConfig(level=logging.DEBUG,
-                          format='%(asctime)s %(levelname)-8s %(message)s')
+      level=logging.DEBUG
+      format='%(asctime)s %(levelname)-8s %(message)s'
+
+    logging.basicConfig(level=level, format=format,
+                        filename=self._options.log_file)
+
     if self._options.list_missing_tests:
       self._ListMissingTests()
       sys.exit(0)
 
   def TestsDir(self):
     """Returns the path to dir containing tests.
 
     This is typically the dir containing the tests description file.
     This method should be overridden by derived class to point to other dirs
     if needed.
@@ skipping 144 matching lines @@
     if self._options.verbose:
       verbosity = 2
     result = unittest.TextTestRunner(verbosity=verbosity).run(pyauto_suite)
     del loaded_tests  # Need to destroy test cases before the suite
     del pyauto_suite
     sys.exit(not result.wasSuccessful())
 
 
 if __name__ == '__main__':
   Main()