migration: T6007: convert all migration scripts to load as module

1 files changed, 15 insertions, 35 deletions

diff --git a/src/migration-scripts/ipsec/12-to-13 b/src/migration-scripts/ipsec/12-to-13
index d90c70314..ffe766eb2 100755..100644
--- a/src/migration-scripts/ipsec/12-to-13
+++ b/src/migration-scripts/ipsec/12-to-13
@@ -1,43 +1,30 @@
-#!/usr/bin/env python3
+# Copyright 2024 VyOS maintainers and contributors <maintainers@vyos.io>
 #
-# Copyright (C) 2024 VyOS maintainers and contributors
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
 #
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 or later as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful,
+# This library is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+# You should have received a copy of the GNU Lesser General Public License
+# along with this library.  If not, see <http://www.gnu.org/licenses/>.
 
 # Changed value of dead-peer-detection.action from hold to trap
 # Changed value of close-action from hold to trap and from restart to start
 
-from sys import argv
-from sys import exit
-
 from vyos.configtree import ConfigTree
 
-if len(argv) < 2:
-    print("Must specify file name!")
-    exit(1)
-
-file_name = argv[1]
-
-with open(file_name, 'r') as f:
-    config_file = f.read()
-
 base = ['vpn', 'ipsec', 'ike-group']
-config = ConfigTree(config_file)
 
-if not config.exists(base):
-    # Nothing to do
-    exit(0)
-else:
+def migrate(config: ConfigTree) -> None:
+    if not config.exists(base):
+        # Nothing to do
+        return
+
     for ike_group in config.list_nodes(base):
         base_dpd_action = base + [ike_group, 'dead-peer-detection', 'action']
         base_close_action = base + [ike_group, 'close-action']
@@ -48,10 +35,3 @@ else:
                 config.set(base_close_action, 'trap', replace=True)
             if config.return_value(base_close_action) == 'restart':
                 config.set(base_close_action, 'start', replace=True)
-
-try:
-    with open(file_name, 'w') as f:
-        f.write(config.to_string())
-except OSError as e:
-    print(f'Failed to save the modified config: {e}')
-    exit(1)