controllers: enforce the usage of either --simulation or --device

artiq/frontend/novatech409b_controller.py

@@ -31,6 +31,11 @@ def main():
     args = get_argparser().parse_args()
     init_logger(args)
 
+    if not args.simulation and args.device is None:
+        raise ValueError("You need to specify either --simulation or "
+                         "-d/--device argument. Use --help for more "
+                         "information.")
+
     dev = Novatech409B(args.device if not args.simulation else None)
     try:
         simple_server_loop(

artiq/frontend/pdq2_controller.py

@@ -27,6 +27,12 @@ def main():
     args = get_argparser().parse_args()
     init_logger(args)
     port = None
+
+    if not args.simulation and args.device is None:
+        raise ValueError("You need to specify either --simulation or "
+                         "-d/--device argument. Use --help for more "
+                         "information.")
+
     if args.simulation:
         port = open(args.dump, "wb")
     dev = Pdq2(url=args.device, dev=port)

artiq/frontend/pxi6733_controller.py

@@ -25,6 +25,11 @@ def main():
     args = get_argparser().parse_args()
     init_logger(args)
 
+    if not args.simulation and args.channels is None:
+        raise ValueError("You need to specify either --simulation or "
+                         "-C/--channels argument. Use --help for more "
+                         "information.")
+
     if args.simulation:
         daq = DAQmxSim()
     else:

artiq/frontend/thorlabs_tcube_controller.py

@@ -26,6 +26,11 @@ def main():
     args = get_argparser().parse_args()
     init_logger(args)
 
+    if not args.simulation and args.device is None:
+        raise ValueError("You need to specify either --simulation or "
+                         "-d/--device argument. Use --help for more "
+                         "information.")
+
     if args.simulation:
         if args.product == "TDC001":
             dev = TdcSim()