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#!/usr/bin/python |
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# -*- coding: utf-8 -*- |
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import argparse |
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import sys |
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import logging |
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import logging.handlers |
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import os |
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import metadata |
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import doorpi |
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from resource import getrlimit, RLIMIT_NOFILE |
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TRACE_LEVEL = 5 |
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LOG_FORMAT = '%(asctime)s [%(levelname)s] \t[%(name)s] %(message)s' |
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logger = logging.getLogger(__name__) |
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log_level = logging.INFO |
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def add_trace_level(): |
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logging.addLevelName(TRACE_LEVEL, "TRACE") |
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def trace(self, message, *args, **kws): |
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# Yes, logger takes its '*args' as 'args'. |
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self._log(TRACE_LEVEL, message, args, **kws) |
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logging.Logger.trace = trace |
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def init_logger(arguments): |
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add_trace_level() |
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global log_level |
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if '--debug' in arguments: log_level = logging.DEBUG |
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if '--trace' in arguments: log_level = TRACE_LEVEL |
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logging.basicConfig( |
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level = log_level, |
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format = LOG_FORMAT |
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# datefmt = '%m/%d/%Y %I:%M:%S %p' |
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) |
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return logging.getLogger(__name__) |
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def parse_arguments(argv): |
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arg_parser = argparse.ArgumentParser( |
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prog=argv[0], |
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formatter_class=argparse.RawDescriptionHelpFormatter, |
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description=metadata.description, |
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epilog = metadata.epilog |
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) |
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arg_parser.add_argument( |
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'-V', '--version', |
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action='version', |
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version='{0} {1}'.format(metadata.project, metadata.version) |
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) |
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arg_parser.add_argument('--debug', action="store_true") |
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arg_parser.add_argument('--trace', action="store_true") |
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arg_parser.add_argument('--test', action="store_true") |
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arg_parser.add_argument( |
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'-c', '--configfile', |
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help='configfile for DoorPi - https://github.com/motom001/DoorPi/wiki for more help', |
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dest='configfile' |
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) |
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try: |
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if len(sys.argv) > 1 and sys.argv[1] in ['start', 'stop', 'restart', 'status']: |
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return arg_parser.parse_args(args=sys.argv[2:]) |
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else: |
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return arg_parser.parse_args(args=sys.argv[1:]) |
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except IOError: |
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print("EXCEPTION: configfile does not exist or is not readable") |
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print("please refer to the DoorPi wiki for more information ") |
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print("<https://github.com/motom001/DoorPi/wiki>") |
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raise SystemExit(1) |
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def files_preserve_by_path(*paths): |
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wanted = [] |
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for path in paths: |
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fd = os.open(path, os.O_RDONLY) |
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try: |
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wanted.append(os.fstat(fd)[1:3]) |
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finally: |
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os.close(fd) |
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def fd_wanted(fd): |
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try: |
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return os.fstat(fd)[1:3] in wanted |
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except OSError: |
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return False |
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fd_max = getrlimit(RLIMIT_NOFILE)[1] |
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return [fd for fd in xrange(fd_max) if fd_wanted(fd)] |
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def main_as_daemon(argv): |
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if argv[1] is 'reload': |
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print('not implemeted yet - use restart instead') |
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return 1 |
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if argv[1] in ['stop']: |
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parsed_arguments = None |
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else: |
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parsed_arguments = parse_arguments(argv) |
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if not os.path.exists(metadata.log_folder): |
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os.makedirs(metadata.log_folder) |
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log_file = os.path.join(metadata.log_folder, "doorpi.log") |
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logrotating = logging.handlers.RotatingFileHandler( |
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log_file, |
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maxBytes=5000000, |
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backupCount=10 |
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) |
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global log_level |
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logrotating.setLevel(log_level) |
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logrotating.setFormatter(logging.Formatter(LOG_FORMAT)) |
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logging.getLogger('').addHandler(logrotating) |
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print(metadata.epilog) |
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from daemon import runner |
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from daemon.runner import DaemonRunnerInvalidActionError |
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from daemon.runner import DaemonRunnerStartFailureError |
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from daemon.runner import DaemonRunnerStopFailureError |
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daemon_runner = runner.DaemonRunner(doorpi.DoorPi(parsed_arguments)) |
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#This ensures that the logger file handle does not get closed during daemonization |
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daemon_runner.daemon_context.files_preserve = files_preserve_by_path(log_file) |
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try: |
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daemon_runner.do_action() |
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except DaemonRunnerStopFailureError as ex: |
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print("can't stop DoorPi daemon - maybe it's not running? (Message: %s)" % ex) |
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return 1 |
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except DaemonRunnerStartFailureError as ex: |
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print("can't start DoorPi daemon - maybe it's running already? (Message: %s)" % ex) |
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return 1 |
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except Exception as ex: |
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print("Exception NameError: %s" % ex) |
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finally: |
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doorpi.DoorPi().destroy() |
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return 0 |
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def main_as_application(argv): |
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parsed_arguments = parse_arguments(argv) |
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logger.info(metadata.epilog) |
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logger.debug('loaded with arguments: %s', str(argv)) |
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try: doorpi.DoorPi(parsed_arguments).run() |
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except KeyboardInterrupt: logger.info("KeyboardInterrupt -> DoorPi will shutdown") |
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except Exception as ex: logger.exception("Exception NameError: %s", ex) |
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finally: doorpi.DoorPi().destroy() |
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return 0 |
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def entry_point(): |
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init_logger(sys.argv) |
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"""Zero-argument entry point for use with setuptools/distribute.""" |
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if len(sys.argv) > 1 and sys.argv[1] in ['status']: |
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raise SystemExit(get_status_from_doorpi(sys.argv)) |
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elif len(sys.argv) > 1 and sys.argv[1] in ['start', 'stop', 'restart', 'reload']: |
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raise SystemExit(main_as_daemon(sys.argv)) |
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else: |
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raise SystemExit(main_as_application(sys.argv)) |
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if __name__ == '__main__': |
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entry_point() |
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motom001 /
DoorPi
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Usage of
globalcan make code hard to read and test, its usage is generally not recommended unless you are dealing with legacy code.