i3-companion: keep notifications for blocked devices forever

bin/i3-companion

@@ -891,6 +891,7 @@ async def dunst_status_check(i3, event):
         signature="uusua{ss}",
     )
 )
+@static(history=collections.defaultdict(list))
 async def usbguard_notifications(
     i3, event, path, id, target_new, device_rule, rule_id, attributes
 ):
@@ -899,23 +900,31 @@ async def usbguard_notifications(
         human = f"\"{attributes['name']}\" ({attributes['id']})"
     else:
         human = f"{attributes['id']}"
+    extra_args = {}
     if target_new == 0:
         action = "accepted"
     elif target_new == 1:
         action = "blocked"
+        extra_args["expire_timeout"] = 0
     elif target_new == 2:
         action = "rejected"
-    await notify(
+    else:
+        return
+    nid = await notify(
         i3,
         app_icon="media-removable",
         summary=f"New {action} USB device",
+        replaces_id=usbguard_notifications.history.get(id, 0),
         body="\n".join(
             [
                 f"USB device {human} {action}",
                 f"ID: <tt>{id}</tt>, Port: <tt>{attributes['via-port']}</tt>",
             ]
         ),
+        **extra_args,
     )
+    if nid:
+        usbguard_notifications.history[id] = nid[0]
 
 
 @on(