zabbix-vsphere-import: Find a Zabbix hostgroup by name

src/misc-tools/zabbix-vsphere-import

@@ -174,6 +174,28 @@ class ZabbixConnector(object):
 
         return result
 
+    def get_host_group_by_name(self, name):
+        """
+        Get a Zabbix hostgroup id by name
+
+        Args:
+            name (str): Name of the host group in Zabbix
+            
+        Returns:
+            The id of the host group in Zabbix
+
+        """
+        data   = self.get_host_groups()
+        groups = data['result']
+
+        for group in groups:
+            if group['name'] == name:
+                break
+        else:
+            return None
+
+        return group['groupid']
+
     def create_host(self, host):
         """
         Create a Zabbix host