1 files changed, 86 insertions, 0 deletions
diff --git a/src/helpers/run-config-migration.py b/src/helpers/run-config-migration.py
new file mode 100755
index 000000000..cc7166c22
--- /dev/null
+++ b/src/helpers/run-config-migration.py
@@ -0,0 +1,86 @@
+#!/usr/bin/python3
+
+# Copyright 2019 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/>.
+
+import os
+import sys
+import argparse
+import datetime
+
+from vyos.util 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()
+
+    config_file_name = args.config_file
+    force_on = args.force
+    vintage = args.set_vintage
+    virtual = args.virtual
+
+    if not os.access(config_file_name, os.R_OK):
+        print("Read error: {}.".format(config_file_name))
+        sys.exit(1)
+
+    if not os.access(config_file_name, os.W_OK):
+        print("Write error: {}.".format(config_file_name))
+        sys.exit(1)
+
+    separator = "."
+    backup_file_name = separator.join([config_file_name,
+            '{0:%Y-%m-%d-%H%M%S}'.format(datetime.datetime.now()),
+            'pre-migration'])
+
+    cmd(f'cp -p {config_file_name} {backup_file_name}')
+
+    if not virtual:
+        virtual_migration = VirtualMigrator(config_file_name)
+        virtual_migration.run()
+
+        migration = Migrator(config_file_name, force=force_on)
+        migration.run()
+
+        if not migration.config_changed():
+            os.remove(backup_file_name)
+    else:
+        virtual_migration = VirtualMigrator(config_file_name,
+                                            set_vintage=vintage)
+
+        virtual_migration.run()
+
+        if not virtual_migration.config_changed():
+            os.remove(backup_file_name)
+
+if __name__ == '__main__':
+    main()