forked from borgmatic-collective/borgmatic
73 lines
2.4 KiB
Python
73 lines
2.4 KiB
Python
from datetime import datetime
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import glob
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import itertools
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import os
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import platform
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import subprocess
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import tempfile
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from borgmatic.verbosity import VERBOSITY_SOME, VERBOSITY_LOTS
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def initialize(storage_config):
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passphrase = storage_config.get('encryption_passphrase')
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if passphrase:
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os.environ['BORG_PASSPHRASE'] = passphrase
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def _write_exclude_file(exclude_patterns=None):
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'''
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Given a sequence of exclude patterns, write them to a named temporary file and return it. Return
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None if no patterns are provided.
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'''
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if not exclude_patterns:
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return None
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exclude_file = tempfile.NamedTemporaryFile('w')
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exclude_file.write('\n'.join(exclude_patterns))
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exclude_file.flush()
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return exclude_file
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def create_archive(
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verbosity, repository, location_config, storage_config,
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):
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'''
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Given a vebosity flag, a storage config dict, a list of source directories, a local or remote
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repository path, a list of exclude patterns, create a Borg archive.
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'''
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sources = tuple(
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itertools.chain.from_iterable(
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glob.glob(directory) or [directory]
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for directory in location_config['source_directories']
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)
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)
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exclude_file = _write_exclude_file(location_config.get('exclude_patterns'))
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exclude_flags = ('--exclude-from', exclude_file.name) if exclude_file else ()
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compression = storage_config.get('compression', None)
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compression_flags = ('--compression', compression) if compression else ()
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umask = storage_config.get('umask', None)
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umask_flags = ('--umask', str(umask)) if umask else ()
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one_file_system_flags = ('--one-file-system',) if location_config.get('one_file_system') else ()
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remote_path = location_config.get('remote_path')
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remote_path_flags = ('--remote-path', remote_path) if remote_path else ()
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verbosity_flags = {
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VERBOSITY_SOME: ('--info', '--stats',),
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VERBOSITY_LOTS: ('--debug', '--list', '--stats'),
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}.get(verbosity, ())
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full_command = (
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'borg', 'create',
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'{repository}::{hostname}-{timestamp}'.format(
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repository=repository,
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hostname=platform.node(),
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timestamp=datetime.now().isoformat(),
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),
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) + sources + exclude_flags + compression_flags + one_file_system_flags + \
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remote_path_flags + umask_flags + verbosity_flags
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subprocess.check_call(full_command)
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