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

(cherry picked from commit 26740a8d583f64dc0a27b59dd4ae303056972c0b)

1 files changed, 12 insertions, 31 deletions

diff --git a/src/migration-scripts/interfaces/24-to-25 b/src/migration-scripts/interfaces/24-to-25
index 8fd79ecc6..9f8cc80ec 100755..100644
--- a/src/migration-scripts/interfaces/24-to-25
+++ b/src/migration-scripts/interfaces/24-to-25
@@ -1,41 +1,29 @@
-#!/usr/bin/env python3
+# Copyright 2021-2024 VyOS maintainers and contributors <maintainers@vyos.io>
 #
-# Copyright (C) 2021 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/>.
 
 # A VTI interface also requires an IPSec configuration - VyOS 1.2 supported
 # having a VTI interface in the CLI but no IPSec configuration - drop VTI
 # configuration if this is the case for VyOS 1.4
 
-import sys
 from vyos.configtree import ConfigTree
 
-if __name__ == '__main__':
-    if len(sys.argv) < 2:
-        print("Must specify file name!")
-        sys.exit(1)
-
-    file_name = sys.argv[1]
-
-    with open(file_name, 'r') as f:
-        config_file = f.read()
-
-    config = ConfigTree(config_file)
+def migrate(config: ConfigTree) -> None:
     base = ['interfaces', 'vti']
     if not config.exists(base):
         # Nothing to do
-        sys.exit(0)
+        return
 
     ipsec_base = ['vpn', 'ipsec', 'site-to-site', 'peer']
     for interface in config.list_nodes(base):
@@ -51,10 +39,3 @@ if __name__ == '__main__':
                         break
         if not found:
             config.delete(base + [interface])
-
-    try:
-        with open(file_name, 'w') as f:
-            f.write(config.to_string())
-    except OSError as e:
-        print("Failed to save the modified config: {}".format(e))
-        sys.exit(1)