services: cable_guy: invalidate cache when updating interface settings

Author: nicoschmdt

core/services/cable_guy/api/manager.py

@@ -312,6 +312,8 @@ def _update_interface_settings(self, interface_name: str, updated_interface: Net
         self._settings.content = [interface for interface in self._settings.content if interface.name != interface_name]
         self._settings.content.append(updated_interface)
         self._manager.save()
+        # OS state has just been mutated; drop the cached view so the next read returns fresh data.
+        self.get_ethernet_interfaces.invalidate()  # type: ignore[attr-defined]
 
     def add_static_ip(self, interface_name: str, ip: str, mode: AddressMode = AddressMode.Unmanaged) -> None:
         """Set ip address for a specific interface and saves it to the settings file
@@ -477,6 +479,7 @@ def get_interfaces(self, filter_wifi: bool = False, include_dhcp_markers: bool =
 
         return result
 
+    @temporary_cache(timeout_seconds=10)
     def get_ethernet_interfaces(self, include_dhcp_markers: bool = False) -> List[NetworkInterface]:
         """Get ethernet interfaces information
 

core/services/cable_guy/main.py

@@ -36,7 +36,6 @@
 
 @app.get("/ethernet", response_model=List[NetworkInterface], summary="Retrieve ethernet interfaces.")
 @version(1, 0)
-@temporary_cache(timeout_seconds=10)
 def retrieve_ethernet_interfaces() -> Any:
     """REST API endpoint to retrieve the configured ethernet interfaces."""
     return manager.get_ethernet_interfaces()