Adding the initial code for Omnibot multi-machine support

testing/legion/common_lib.py

+# Copyright 2015 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.
+"""Common library methods.
+
+These methods can be used by both the host and the client code.
+"""
+import argparse
+import logging
+import socket
+import sys
+import xmlrpclib
+import SimpleXMLRPCServer
+
+LOGGING_FORMAT = ('%(asctime)s %(filename)s:%(lineno)s %(levelname)s] '
+                  '%(message)s')
+LOGGING_DATE_FORMAT = '%H:%M:%S'
+MY_IP = socket.gethostbyname(socket.gethostname())
+
+
+def InitLogging():
+  """Initialize the logging module."""
+  parser = argparse.ArgumentParser()
+  parser.add_argument('--verbose', action='store_true')
+  args, _ = parser.parse_known_args()
+  level = logging.DEBUG if args.verbose else logging.INFO
+  logging.basicConfig(format=LOGGING_FORMAT, datefmt=LOGGING_DATE_FORMAT,
+                      level=level)
+
+
+def LogCommandLine():
+  """Log the command line used to run this program."""
+  logging.debug(' '.join(sys.argv))