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

(cherry picked from commit 26740a8d583f64dc0a27b59dd4ae303056972c0b)

1 files changed, 22 insertions, 41 deletions

diff --git a/src/migration-scripts/pppoe-server/5-to-6 b/src/migration-scripts/pppoe-server/5-to-6
index e079ae684..13de8f8d2 100755..100644
--- a/src/migration-scripts/pppoe-server/5-to-6
+++ b/src/migration-scripts/pppoe-server/5-to-6
@@ -1,52 +1,33 @@
-#!/usr/bin/env python3
+# Copyright 2022-2024 VyOS maintainers and contributors <maintainers@vyos.io>
 #
-# Copyright (C) 2022 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/>.
 
 # - T4703: merge vlan-id and vlan-range to vlan CLI node
 
 from vyos.configtree import ConfigTree
-from sys import argv
-from sys import exit
-
-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()
-
-config = ConfigTree(config_file)
 base_path = ['service', 'pppoe-server', 'interface']
-if not config.exists(base_path):
-    # Nothing to do
-    exit(0)
-
-for interface in config.list_nodes(base_path):
-    for vlan in ['vlan-id', 'vlan-range']:
-        if config.exists(base_path + [interface, vlan]):
-            print(interface, vlan)
-            for tmp in config.return_values(base_path + [interface, vlan]):
-                config.set(base_path + [interface, 'vlan'], value=tmp, replace=False)
-            config.delete(base_path + [interface, vlan])
-
-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)
 
+def migrate(config: ConfigTree) -> None:
+    if not config.exists(base_path):
+        # Nothing to do
+        return
+
+    for interface in config.list_nodes(base_path):
+        for vlan in ['vlan-id', 'vlan-range']:
+            if config.exists(base_path + [interface, vlan]):
+                print(interface, vlan)
+                for tmp in config.return_values(base_path + [interface, vlan]):
+                    config.set(base_path + [interface, 'vlan'], value=tmp, replace=False)
+                config.delete(base_path + [interface, vlan])