cli: fix add_peer cmd

electrum/commands.py

@@ -776,7 +776,9 @@ class Commands:
     # lightning network commands
     @command('wn')
     def add_peer(self, connection_string, timeout=20):
-        return self.lnworker.add_peer(connection_string)
+        coro = self.lnworker.add_peer(connection_string)
+        self.network.run_from_another_thread(coro, timeout=timeout)
+        return True
 
     @command('wpn')
     def open_channel(self, connection_string, amount, channel_push=0, password=None):

electrum/lnworker.py

@@ -643,7 +643,7 @@ class LNWallet(LNWorker):
     def on_channels_updated(self):
         self.network.trigger_callback('channels')
 
-    async def add_peer(self, connect_str, timeout=20):
+    async def add_peer(self, connect_str: str) -> Peer:
         node_id, rest = extract_nodeid(connect_str)
         peer = self.peers.get(node_id)
         if not peer:

electrum/network.py

@@ -311,10 +311,10 @@ class Network(Logger):
             self.lnwatcher = None
             self.lngossip = None
 
-    def run_from_another_thread(self, coro):
+    def run_from_another_thread(self, coro, *, timeout=None):
         assert self._loop_thread != threading.current_thread(), 'must not be called from network thread'
         fut = asyncio.run_coroutine_threadsafe(coro, self.asyncio_loop)
-        return fut.result()
+        return fut.result(timeout)
 
     @staticmethod
     def get_instance() -> Optional["Network"]: