add clone function

lgit.py

@@ -303,6 +303,34 @@ l dc values from base
 
         return pushed
 
+    def clone(self, source)->int:
+        # Delete all users from this server
+        self.conn.search(search_base=source.base,search_filter='(objectClass=person)', attributes=USERATTRIBUTES)
+        response = self.conn.response
+        if response != []:
+            for user in response:
+                uid = user.attributes['uid']
+                if isinstance(uid, list):
+                    uid = uid[0]
+                self.conn.delete(f'uid={uid},{self.base}')
+        # Copy all users from source server
+        cloned = 0
+        source.conn.search(search_base=source.base,search_filter='(objectClass=person)', attributes=USERATTRIBUTES)
+        response = source.conn.response
+        if response == []:
+            return 0
+        else:
+            for user in response:
+                attributes = user.attributes
+                # If attribute returned as list, take only first element
+                for key in attributes:
+                    if isinstance(attributes[key], list):
+                        attributes[key] = attributes[key][0]
+                uid = attributes['uid']
+                self.conn.add(f'uid={uid},{self.base}', OBJECTCLASSES, attributes)
+                cloned += 1
+        return cloned
+
     def lastpwchangenow(self):
         '''
             Return time of last password change for the user set to current time