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diff --git a/src/helpers/run-config-migration.py b/src/helpers/run-config-migration.py
index ce647ad0a..e6ce97363 100755
--- a/src/helpers/run-config-migration.py
+++ b/src/helpers/run-config-migration.py
@@ -1,86 +1,78 @@
-#!/usr/bin/python3
-
-# Copyright 2019 VyOS maintainers and contributors <maintainers@vyos.io>
+#!/usr/bin/env python3
+#
+# Copyright (C) 2019-2024 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 library is distributed in the hope that it will be useful,
+# This program 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.
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU 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/>.
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
import os
import sys
-import argparse
-import datetime
-
-from vyos.utils.process import cmd
-from vyos.migrator import Migrator, VirtualMigrator
-
-def main():
- argparser = argparse.ArgumentParser(
- formatter_class=argparse.RawTextHelpFormatter)
- argparser.add_argument('config_file', type=str,
- help="configuration file to migrate")
- argparser.add_argument('--force', action='store_true',
- help="Force calling of all migration scripts.")
- argparser.add_argument('--set-vintage', type=str,
- choices=['vyatta', 'vyos'],
- help="Set the format for the config version footer in config"
- " file:\n"
- "set to 'vyatta':\n"
- "(for '/* === vyatta-config-version ... */' format)\n"
- "or 'vyos':\n"
- "(for '// vyos-config-version ...' format).")
- argparser.add_argument('--virtual', action='store_true',
- help="Update the format of the trailing comments in"
- " config file,\nfrom 'vyatta' to 'vyos'; no migration"
- " scripts are run.")
- args = argparser.parse_args()
+import time
+from argparse import ArgumentParser
+from shutil import copyfile
- config_file_name = args.config_file
- force_on = args.force
- vintage = args.set_vintage
- virtual = args.virtual
+from vyos.migrate import ConfigMigrate
+from vyos.migrate import ConfigMigrateError
- if not os.access(config_file_name, os.R_OK):
- print("Read error: {}.".format(config_file_name))
- sys.exit(1)
+parser = ArgumentParser()
+parser.add_argument('config_file', type=str,
+ help="configuration file to migrate")
+parser.add_argument('--test-script', type=str,
+ help="test named script")
+parser.add_argument('--output-file', type=str,
+ help="write to named output file instead of config file")
+parser.add_argument('--force', action='store_true',
+ help="force run of all migration scripts")
- if not os.access(config_file_name, os.W_OK):
- print("Write error: {}.".format(config_file_name))
- sys.exit(1)
+args = parser.parse_args()
- separator = "."
- backup_file_name = separator.join([config_file_name,
- '{0:%Y-%m-%d-%H%M%S}'.format(datetime.datetime.now()),
- 'pre-migration'])
+config_file = args.config_file
+out_file = args.output_file
+test_script = args.test_script
+force = args.force
- cmd(f'cp -p {config_file_name} {backup_file_name}')
+if not os.access(config_file, os.R_OK):
+ print(f"Config file '{config_file}' not readable")
+ sys.exit(1)
- if not virtual:
- virtual_migration = VirtualMigrator(config_file_name)
- virtual_migration.run()
+if out_file is None:
+ if not os.access(config_file, os.W_OK):
+ print(f"Config file '{config_file}' not writeable")
+ sys.exit(1)
+else:
+ try:
+ open(out_file, 'w').close()
+ except OSError:
+ print(f"Output file '{out_file}' not writeable")
+ sys.exit(1)
- migration = Migrator(config_file_name, force=force_on)
- migration.run()
+config_migrate = ConfigMigrate(config_file, force=force, output_file=out_file)
- if not migration.config_changed():
- os.remove(backup_file_name)
- else:
- virtual_migration = VirtualMigrator(config_file_name,
- set_vintage=vintage)
+if test_script:
+ # run_script and exit
+ config_migrate.run_script(test_script)
+ sys.exit(0)
- virtual_migration.run()
+backup = None
+if out_file is None:
+ timestr = time.strftime("%Y%m%d-%H%M%S")
+ backup = f'{config_file}.{timestr}.pre-migration'
+ copyfile(config_file, backup)
- if not virtual_migration.config_changed():
- os.remove(backup_file_name)
+try:
+ config_migrate.run()
+except ConfigMigrateError as e:
+ print(f'Error: {e}')
+ sys.exit(1)
-if __name__ == '__main__':
- main()
+if backup is not None and not config_migrate.config_modified:
+ os.unlink(backup)

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