def main():
    """Entry point for running crony.

    1. If a --cronitor/-c is specified, a "run" ping is sent to cronitor.
    2. The argument string passed to crony is ran.
    3. Next steps depend on the exit code of the command ran.
        * If the exit status is 0 and a --cronitor/-c is specified, a "complete" ping is sent
            to cronitor.
        * If the exit status is greater than 0, a message is sent to Sentry with the output
            captured from the script's exit.
        * If the exit status is great than 0 and --cronitor/-c is specified, a "fail" ping
            is sent to cronitor.
    """
    parser = argparse.ArgumentParser(
        description='Monitor your crons with cronitor.io & sentry.io',
        epilog='https://github.com/youversion/crony',
        prog='crony'
    )

    parser.add_argument('-c', '--cronitor', action='store',
                        help='Cronitor link identifier. This can be found in your Cronitor unique'
                        ' ping URL right after https://cronitor.link/')

    parser.add_argument('-e', '--venv', action='store',
                        help='Path to virtualenv to source before running script. May be passed'
                        ' as an argument or loaded from an environment variable or config file.')

    parser.add_argument('-d', '--cd', action='store',
                        help='If the script needs ran in a specific directory, than can be passed'
                        ' or cd can be ran prior to running crony.')

    parser.add_argument('-l', '--log', action='store',
                        help='Log file to direct stdout of script run to. Can be passed or '
                        'defined in config file with "log_file"')

    parser.add_argument('-o', '--config', action='store',
                        help='Path to a crony config file to use.')

    parser.add_argument('-p', '--path', action='store',
                        help='Paths to append to the PATH environment variable before running. '
                        ' Can be passed as an argument or loaded from config file.')

    parser.add_argument('-s', '--dsn', action='store',
                        help='Sentry DSN. May be passed or loaded from an environment variable '
                        'or a config file.')

    parser.add_argument('-t', '--timeout', action='store', default=10, help='Timeout to use when'
                        ' sending requests to Cronitor', type=int)

    parser.add_argument('-v', '--verbose', action='store_true', help='Increase level of verbosity'
                        ' output by crony')

    parser.add_argument('--version', action='store_true', help='Output crony version # and exit')

    parser.add_argument('cmd', nargs=argparse.REMAINDER, help='Command to run and monitor')

    cc = CommandCenter(parser.parse_args())

    sys.exit(cc.log(*cc.func()))