1 files changed, 19 insertions, 22 deletions
diff --git a/src/migration-scripts/system/14-to-15 b/src/migration-scripts/system/14-to-15
index feaac37de..281809460 100755..100644
--- a/src/migration-scripts/system/14-to-15
+++ b/src/migration-scripts/system/14-to-15
@@ -1,40 +1,37 @@
-#!/usr/bin/env python3
+# Copyright 2019-2024 VyOS maintainers and contributors <maintainers@vyos.io>
 #
+# 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 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
+# Lesser General Public License for more details.
+#
+# 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/>.
+
 # Delete 'system ipv6 blacklist' option as the IPv6 module can no longer be
 # blacklisted as it is required by e.g. WireGuard and thus will always be
 # loaded.
 
 import os
-import sys
 
 ipv6_blacklist_file = '/etc/modprobe.d/vyatta_blacklist_ipv6.conf'
 
 from vyos.configtree import ConfigTree
 
-if len(sys.argv) < 2:
-    print("Must specify file name!")
-    sys.exit(1)
-
-file_name = sys.argv[1]
+ip_base = ['system', 'ipv6']
 
-with open(file_name, 'r') as f:
-    config_file = f.read()
+def migrate(config: ConfigTree) -> None:
+    if not config.exists(ip_base):
+        # Nothing to do
+        return
 
-config = ConfigTree(config_file)
-ip_base = ['system', 'ipv6']
-if not config.exists(ip_base):
-    # Nothing to do
-    sys.exit(0)
-else:
     # delete 'system ipv6 blacklist' node
     if config.exists(ip_base + ['blacklist']):
         config.delete(ip_base + ['blacklist'])
         if os.path.isfile(ipv6_blacklist_file):
             os.unlink(ipv6_blacklist_file)
-
-    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)