Implement seppuku command

solvable/src/event_handler_main.py

@@ -34,6 +34,15 @@ class TestCommands(TerminalCommands):
                                             'next_visibility': self.togglenext_visible}})
         self.togglenext_visible = not self.togglenext_visible
 
+    def command_seppuku_tfw(self, *args):
+        seppuku = ('nohup sh -c "supervisorctl restart tfwserver event_handler_main" &> /dev/null & '
+                   'clear && echo "Committed seppuku! :)" && sleep infinity')
+        TFWServerConnector().send_to_eventhandler({
+            'key': 'shell',
+            'data': {'command': 'write',
+                     'shellcmd': f'{seppuku}\n'}
+        })
+
 
 if __name__ == '__main__':
     # pylint: disable=invalid-name