forked from borgmatic-collective/borgmatic
76 lines
2.5 KiB
Python
76 lines
2.5 KiB
Python
from __future__ import print_function
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from argparse import ArgumentParser
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from importlib import import_module
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import os
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from subprocess import CalledProcessError
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import sys
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from atticmatic.config import parse_configuration
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DEFAULT_CONFIG_FILENAME_PATTERN = '/etc/{}/config'
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DEFAULT_EXCLUDES_FILENAME_PATTERN = '/etc/{}/excludes'
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def parse_arguments(command_name, *arguments):
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'''
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Given the name of the command with which this script was invoked and command-line arguments,
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parse the arguments and return them as an ArgumentParser instance. Use the command name to
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determine the default configuration and excludes paths.
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'''
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config_filename_default = DEFAULT_CONFIG_FILENAME_PATTERN.format(command_name)
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excludes_filename_default = DEFAULT_EXCLUDES_FILENAME_PATTERN.format(command_name)
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parser = ArgumentParser()
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parser.add_argument(
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'-c', '--config',
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dest='config_filename',
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default=config_filename_default,
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help='Configuration filename',
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)
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parser.add_argument(
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'--excludes',
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dest='excludes_filename',
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default=excludes_filename_default if os.path.exists(excludes_filename_default) else None,
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help='Excludes filename',
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)
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parser.add_argument(
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'-v', '--verbosity',
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type=int,
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help='Display verbose progress (1 for some, 2 for lots)',
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)
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return parser.parse_args(arguments)
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def load_backend(command_name):
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'''
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Given the name of the command with which this script was invoked, return the corresponding
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backend module responsible for actually dealing with backups.
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'''
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backend_name = {
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'atticmatic': 'attic',
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'borgmatic': 'borg',
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}.get(command_name, 'attic')
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return import_module('atticmatic.backends.{}'.format(backend_name))
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def main():
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try:
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command_name = os.path.basename(sys.argv[0])
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args = parse_arguments(command_name, *sys.argv[1:])
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backend = load_backend(command_name)
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config = parse_configuration(args.config_filename, backend.CONFIG_FORMAT)
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repository = config.location['repository']
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backend.initialize(config.storage)
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backend.create_archive(
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args.excludes_filename, args.verbosity, config.storage, **config.location
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)
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backend.prune_archives(args.verbosity, repository, config.retention)
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backend.check_archives(args.verbosity, repository, config.consistency)
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except (ValueError, IOError, CalledProcessError) as error:
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print(error, file=sys.stderr)
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sys.exit(1)
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