Migrate and merge logging_utils from swarming_bot into client/utils.

client/isolate.py

 #!/usr/bin/env python
 # Copyright 2012 The Swarming Authors. All rights reserved.
 # Use of this source code is governed under the Apache License, Version 2.0 that
 # can be found in the LICENSE file.
 
 """Front end tool to operate on .isolate files.
 
 This includes creating, merging or compiling them to generate a .isolated file.
 
 See more information at
@@ skipping 16 matching lines @@
 import auth
 import isolate_format
 import isolated_format
 import isolateserver
 import run_isolated
 
 from third_party import colorama
 from third_party.depot_tools import fix_encoding
 from third_party.depot_tools import subcommand
 
+from utils import logging_utils
 from utils import file_path
 from utils import tools
 
 
 # Exit code of 'archive' and 'batcharchive' if the command fails due to an error
 # in *.isolate file (format error, or some referenced files are missing, etc.)
 EXIT_CODE_ISOLATE_ERROR = 1
 
 
 # Exit code of 'archive' and 'batcharchive' if the command fails due to
@@ skipping 1146 matching lines @@
   if options.isolate:
     # TODO(maruel): Work with non-ASCII.
     # The path must be in native path case for tracing purposes.
     options.isolate = unicode(options.isolate).replace('/', os.path.sep)
     options.isolate = os.path.normpath(os.path.join(cwd, options.isolate))
     options.isolate = file_path.get_native_path_case(options.isolate)
 
 
 def main(argv):
   dispatcher = subcommand.CommandDispatcher(__name__)
-  parser = tools.OptionParserWithLogging(
+  parser = logging_utils.OptionParserWithLogging(
         version=__version__, verbose=int(os.environ.get('ISOLATE_DEBUG', 0)))
   try:
     return dispatcher.execute(parser, argv)
   except isolated_format.MappingError as e:
     print >> sys.stderr, 'Failed to find an input file: %s' % e
     return 1
   except ExecutionError as e:
     print >> sys.stderr, 'Execution failure: %s' % e
     return 1
 
 
 if __name__ == '__main__':
   fix_encoding.fix_encoding()
   tools.disable_buffering()
   colorama.init()
   sys.exit(main(sys.argv[1:]))