allow passing multiple --setpref args in a single run

.vscode/launch.json

@@ -4,7 +4,6 @@
   // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
   "version": "0.2.0",
   "configurations": [
-    
     {
       "name": "meshtastic BLE",
       "type": "python",
@@ -21,6 +20,14 @@
       "justMyCode": true,
       "args": ["--debug", "--info"]
     },
+    {
+      "name": "meshtastic setpref",
+      "type": "python",
+      "request": "launch",
+      "module": "meshtastic",
+      "justMyCode": true,
+      "args": ["--debug", "--setpref", "a", "1", "--setpref", "b", "2"]
+    },
     {
       "name": "meshtastic shell",
       "type": "python",
@@ -35,7 +42,7 @@
       "request": "launch",
       "module": "meshtastic",
       "justMyCode": true,
-      "args": [ "--debug", "--test"]
+      "args": ["--debug", "--test"]
     },
     {
       "name": "meshtastic sendtext",

meshtastic/__main__.py

@@ -36,9 +36,15 @@ def onConnected(interface):
                                wantAck=True, wantResponse=True)
 
         if args.setpref:
-            name = args.setpref[0]
-            val = int(args.setpref[1])
-            setattr(interface.radioConfig.preferences, name, val)
+            for pref in args.setpref:
+                name = pref[0]
+                print(f"Setting preference {name} to {pref[1]}")
+                # FIXME, currently this tool only supports setting integers
+                try:
+                    val = int(pref[1])
+                    setattr(interface.radioConfig.preferences, name, val)
+                except Exception as ex:
+                    print(f"Can't set {name} due to {ex}")
             print("Writing modified preferences to device...")
             interface.writeConfig()
 
@@ -85,7 +91,8 @@ def main():
     parser.add_argument("--info", help="Read and display the radio config information",
                         action="store_true")
 
-    parser.add_argument("--setpref", help="Set a preferences field", nargs=2)
+    parser.add_argument(
+        "--setpref", help="Set a preferences field", nargs=2, action='append')
 
     parser.add_argument(
         "--dest", help="The destination node id for the --send commands, if not set '^all' is assumed", default="^all")