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"""A utility module for making standalone scripts to start servers.
Scripts in tools/ can use this module to start servers that are normally used
for web tests, outside of the web test runner.
"""
from __future__ import print_function
import logging
import optparse
import os
import signal
from blinkpy.common.host import Host
from blinkpy.common.system.log_utils import configure_logging
from blinkpy.web_tests.port.base import ARTIFACTS_SUB_DIR
from blinkpy.web_tests.port.factory import configuration_options
from blinkpy.web_tests.servers.server_base import ServerError
_log = logging.getLogger(__name__)
class RawTextHelpFormatter(optparse.IndentedHelpFormatter):
def format_description(self, description):
return description
def main(server_constructor,
sleep_fn=None,
argv=None,
description=None,
**kwargs):
host = Host()
sleep_fn = sleep_fn or (lambda: host.sleep(1))
parser = optparse.OptionParser(
description=description, formatter=RawTextHelpFormatter())
parser.add_option(
'--output-dir',
type=str,
default=None,
help='output directory, for log files etc.')
parser.add_option(
'-v', '--verbose', action='store_true', help='print debug logs')
for opt in configuration_options():
parser.add_option(opt)
options, _ = parser.parse_args(argv)
configure_logging(
logging_level=logging.DEBUG if options.verbose else logging.INFO,
include_time=options.verbose)
port_obj = host.port_factory.get(options=options)
if not options.output_dir:
options.output_dir = host.filesystem.join(
port_obj.default_results_directory(), ARTIFACTS_SUB_DIR)
# Create the output directory if it doesn't already exist.
host.filesystem.maybe_make_directory(options.output_dir)
def handler(signum, _):
_log.debug('Received signal %d', signum)
raise SystemExit
signal.signal(signal.SIGINT, handler)
signal.signal(signal.SIGTERM, handler)
server = server_constructor(port_obj, options.output_dir, **kwargs)
server.start()
print('Press Ctrl-C or `kill {}` to stop the server'.format(os.getpid()))
try:
while True:
sleep_fn()
if not server.alive():
raise ServerError('Server is no longer listening')
except ServerError as e:
_log.error(e)
except (SystemExit, KeyboardInterrupt):
_log.info('Exiting...')
finally:
server.stop()
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