BAPSicle/launch.py

#!/usr/bin/env python3
import multiprocessing
import time
import sys
import webbrowser
from setproctitle import setproctitle

from server import BAPSicleServer

def startServer(notifications = False):
    server = multiprocessing.Process(target=BAPSicleServer)
    server.start()

    sent_start_notif = False
    try:
        while True:
            time.sleep(5)
            if server and server.is_alive():
                if notifications and not sent_start_notif:
                    print("NOTIFICATION:Welcome to BAPSicle!")
                    sent_start_notif = True
                pass
            else:
                print("Server dead. Exiting.")
                if notifications:
                    print("NOTIFICATION:BAPSicle Server Stopped!")
                sys.exit(0)
        # Catch the handler being killed externally.
    except KeyboardInterrupt:
        print("Received KeyboardInterupt")
    except SystemExit:
        print("Received SystemExit")
    except Exception as e:
        print("Received unexpected exception: {}".format(e))


if __name__ == "__main__":
    # On Windows, calling this function is necessary.
    # Causes all kinds of loops if not present.
    # IT HAS TO BE RIGHT HERE, AT THE TOP OF __MAIN__
    # NOT INSIDE AN IF STATEMENT. RIGHT. HERE.
    # If it's not here, multiprocessing just doesn't run in the package.
    # Freeze support refers to being packaged with Pyinstaller.
    multiprocessing.freeze_support()
    setproctitle("BAPSicle Launcher")
    if len(sys.argv) > 1:
        # We got an argument! It's probably Platypus's UI.
        try:
            if (sys.argv[1]) == "Start Server":
                webbrowser.open("http://localhost:13500/")
                startServer(notifications=True)
            if sys.argv[1] == "Server":
                webbrowser.open("http://localhost:13500/")
            if sys.argv[1] == "Presenter":
                webbrowser.open("http://localhost:13500/presenter/")
        except Exception as e:
            print("ALERT:BAPSicle failed with exception:\n", e)
            sys.exit(1)

        sys.exit(0)
    else:
        startServer()