#!/usr/bin/env python3 # # Copyright (C) 2023 VyOS maintainers and contributors # # 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, # 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. # # 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 from vyos import ConfigError from vyos.config import Config from vyos.config_mgmt import ConfigMgmt from vyos.config_mgmt import commit_post_hook_dir, commit_hooks def get_config(config=None): if config: conf = config else: conf = Config() base = ['system', 'config-management'] if not conf.exists(base): return None mgmt = ConfigMgmt(config=conf) return mgmt def verify(_mgmt): return def generate(mgmt): if mgmt is None: return mgmt.initialize_revision() def apply(mgmt): if mgmt is None: return locations = mgmt.locations archive_target = os.path.join(commit_post_hook_dir, commit_hooks['commit_archive']) if locations: try: os.symlink('/usr/bin/config-mgmt', archive_target) except FileExistsError: pass except OSError as exc: raise ConfigError from exc else: try: os.unlink(archive_target) except FileNotFoundError: pass except OSError as exc: raise ConfigError from exc revisions = mgmt.max_revisions revision_target = os.path.join(commit_post_hook_dir, commit_hooks['commit_revision']) if revisions > 0: try: os.symlink('/usr/bin/config-mgmt', revision_target) except FileExistsError: pass except OSError as exc: raise ConfigError from exc else: try: os.unlink(revision_target) except FileNotFoundError: pass except OSError as exc: raise ConfigError from exc if __name__ == '__main__': try: c = get_config() verify(c) generate(c) apply(c) except ConfigError as e: print(e) sys.exit(1)