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"""A utility script for starting and stopping servers as they are used in the layout tests."""

import logging
import optparse

from webkitpy.common.host import Host

_log = logging.getLogger(__name__)


def main(server_constructor, input_fn=None, argv=None, **kwargs):
    input_fn = input_fn or raw_input

    option_parser = optparse.OptionParser()
    option_parser.add_option('--output-dir', dest='output_dir',
                             default=None, help='output directory.')
    option_parser.add_option("--build-directory",
        help="Path to the directory under which build files are kept (should not include configuration)"),
    option_parser.add_option('--debug', action='store_const', const='Debug', dest="configuration",
        help='Set the configuration to Debug'),
    option_parser.add_option('--release', action='store_const', const='Release', dest="configuration",
        help='Set the configuration to Release'),
    option_parser.add_option('-v', '--verbose', action='store_true')
    options, args = option_parser.parse_args(argv)

    logging.basicConfig()
    logger = logging.getLogger()
    logger.setLevel(logging.DEBUG if options.verbose else logging.INFO)

    host = Host()
    port_obj = host.port_factory.get(options=options)
    if not options.output_dir:
        options.output_dir = port_obj.default_results_directory()

    # Create the output directory if it doesn't already exist.
    port_obj.host.filesystem.maybe_make_directory(options.output_dir)

    server = server_constructor(port_obj, options.output_dir, **kwargs)
    server.start()
    try:
        _ = input_fn('Hit any key to stop the server and exit.')
    except (KeyboardInterrupt, EOFError) as e:
        pass

    server.stop()