def shell():
res = send_command("status")
if not res:
print("server not running")
while res:
cmd = input("$> ").split()
switch = Switch()
switch.add_case(lambda : len(cmd) == 1 and cmd[0] == 'exit', lambda : exit(0))
switch.add_case(lambda : len(cmd) == 1 and cmd[0] == 'status', status)
switch.add_case(lambda : len(cmd) == 2 and cmd[0] == 'start', lambda : start_process(cmd[1]))
switch.add_case(lambda : len(cmd) == 2 and cmd[0] == 'stop', lambda : stop_process(cmd[1]))
switch.add_case(lambda : len(cmd) == 2 and cmd[0] == 'exit', lambda : exit(0))
switch.add_case(lambda : len(cmd) == 1, lambda : help(cmd[0]))
switch.switch()
def main():
try:
server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server.bind((HOST, PORT))
except OSError as e:
print(e)
exit(1)
jobs = load_file(sys.argv[1])
run_all_jobs(jobs)
while True:
server.listen()
conn, _ = server.accept()
req = read(conn).split(' ')
switch = Switch()
switch.add_case(lambda: req[0] == 'getpid', lambda: get_pid(conn))
switch.add_case(lambda: req[0] == 'stop',
lambda: stop_proccess(jobs, req[1]))
switch.add_case(lambda: req[0] == 'start',
lambda: start_proccess(jobs, req[1]))
switch.add_case(lambda: req[0] == 'signal',
lambda: send_signal(jobs, req[1]))
switch.add_case(lambda: req[0] == 'status', lambda: status(jobs))
switch.add_case(lambda: req[0] == 'close', lambda: exit(0))
switch.switch()
conn.close()
parser = OptionParser()
parser.add_option('--create', dest='create', action='store_true', help="create configuration file", default=False)
parser.add_option('--startserver', dest='startserver', help='start taskmaster deamon with configuration file', metavar='FILE')
parser.add_option('--stopserver', dest='stopserver', action='store_true', help="stop taskmaster deamon", default=False)
parser.add_option('--status', dest='status', action='store_true', help='show list of process', default=False)
parser.add_option('--stop', dest='stopprocess', default=False, help='stop proccess', metavar='COMMAND')
parser.add_option('--start', dest='startprocess', default=False, help='start proccess', metavar='COMMAND')
parser.add_option('--shell', dest="shell", action='store_true', help='start a stable shell', default=False)
if '--create' in sys.argv:
(options, args) = parser.parse_args(sys.argv[0:2])
else:
(options, args) = parser.parse_args()
switch = Switch()
switch.add_case(lambda : options.create, lambda : manage_configuration_file(standalone='create'))
switch.add_case(lambda : options.startserver, lambda : start_server(options.startserver))
switch.add_case(lambda : options.stopserver, stop_server)
switch.add_case(lambda : options.status, status)
switch.add_case(lambda : options.stopprocess, lambda : stop_process(options.stopprocess))
switch.add_case(lambda : options.startprocess, lambda : start_process(options.startprocess))
switch.add_case(lambda : options.shell, shell)
switch.switch()
def manage_configuration_file(standalone=None):
parser = OptionParser(
usage=
F'Usage: %prog {standalone if standalone else ""} -c configurationfile [options]'
)
if standalone:
parser.add_option(F'--{standalone}',
dest='standalone',
action='store_true')
parser.add_option('-c',
'--configurationfile',
dest='configurationfile',
help='create configuration file | add new configuration',
metavar='FILE')
parser.add_option('-s',
'--show',
default=False,
action='store_true',
dest='show',
help='show configuration file')
parser.add_option('-C',
'--command',
dest='cmd',
help='command to launch',
metavar='COMMAND')
parser.add_option('-N',
'--nprocess',
default=None,
dest='nprocess',
help='number of process',
metavar='NUMBER')
parser.add_option('-S',
'--autostart',
default=None,
dest='autostart',
help='start at launch',
metavar='yes/no')
parser.add_option('-O',
'--stdout',
default=None,
dest='stdout',
help='standard output redirect file',
metavar='FILE')
parser.add_option('-E',
'--stderr',
default=None,
dest='stderr',
help='standard error redirect file',
metavar='FILE')
parser.add_option('-U',
'--umask',
default=None,
dest='umask',
help='umask to set before launching the program',
metavar='NUMBER')
parser.add_option('--name',
dest='name',
help='name of command',
metavar='NAME')
parser.add_option('--restart',
default=None,
dest='restart',
help='should Restarted',
metavar='always/never/unexpcted_exit')
parser.add_option('--exitcodes',
default=None,
dest='exitcodes',
help='return code represent expected exit',
metavar='NUMBER,...')
parser.add_option('--starttime',
default=None,
dest='starttime',
help='time to consider successfully started in seconds',
metavar='NUMBER_SECONDS')
parser.add_option('--stoptime',
default=None,
dest='stoptime',
help='time to consider successfully stopped in seconds',
metavar='NUMBER_SECONDS')
parser.add_option('--startretries',
default=None,
dest='startretries',
help='restart attempts before aborted',
metavar='NUMBER')
parser.add_option('--stopsignal',
default=None,
dest='stopsignal',
help='signal to stop program',
metavar='SIGNAME,...')
parser.add_option('--env',
default=None,
dest='env',
help='environment variables',
metavar='KEY=VAL,...')
parser.add_option('--workingdir',
default=None,
dest='workingdir',
help='working directory',
metavar='STRING')
(options, _) = parser.parse_args()
(file, mustShow, configuration) = clean_options(options)
switch = Switch()
switch.add_case(lambda: mustShow, lambda: surround_exit(show_file, file))
switch.add_case(lambda: path.exists(file),
lambda: surround_exit(update_file, file, configuration))
switch.add_case(lambda: not path.exists(file),
lambda: surround_exit(create_file, file, configuration))
switch.switch()