lemonbar: Attempt to restart i3ws connection 5 times with increasing delay

.i3/lemonbar/i3_workspaces.py

@@ -68,10 +68,21 @@ class i3ws(object):
             self.logger.debug('Started i3 workspaces manager')
             self.enterMain()
             self.logger.debug('Finished i3 workspaces manager')
-            time.sleep(0.5) # TODO max number of attempts + catch exception instead
 
     def resetConn(self):
-        self.conn = i3ipc.Connection()
+
+        def attempt_connection(attempt):
+            try:
+                self.conn = i3ipc.Connection()
+            except FileNotFoundError:
+                # Thrown when i3 is not up. Should try again in the case of a restart
+                self.logger.debug('Attempt {}: Failed connecting to i3 socket'.format(attempt))
+                if attempt > 5:
+                    raise ConnectionError('Could not connect to i3 socked, quitting')
+                time.sleep(0.1 if attempt < 3 else 0.5)
+                attempt_connection(attempt + 1)
+
+        attempt_connection(attempt=1)
         self.outputs = self.conn.get_outputs()
 
         self.conn.on('workspace::focus' , self.change)