From 08d4fcbc6243022cda0e889d99817d8e4e0ead78 Mon Sep 17 00:00:00 2001 From: John Estabrook Date: Wed, 19 Jun 2024 20:54:09 -0500 Subject: migration: T6007: update run-config-migration script --- src/helpers/run-config-migration.py | 128 +++++++++++++++++------------------- 1 file changed, 60 insertions(+), 68 deletions(-) (limited to 'src/helpers') 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 +#!/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 . +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . 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) -- cgit v1.2.3