63 lines
2 KiB
Python
63 lines
2 KiB
Python
import logging
|
|
|
|
from borgmatic.execute import execute_command
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
def _make_prune_flags(retention_config):
|
|
'''
|
|
Given a retention config dict mapping from option name to value, tranform it into an iterable of
|
|
command-line name-value flag pairs.
|
|
|
|
For example, given a retention config of:
|
|
|
|
{'keep_weekly': 4, 'keep_monthly': 6}
|
|
|
|
This will be returned as an iterable of:
|
|
|
|
(
|
|
('--keep-weekly', '4'),
|
|
('--keep-monthly', '6'),
|
|
)
|
|
'''
|
|
if not retention_config.get('prefix'):
|
|
retention_config['prefix'] = '{hostname}-'
|
|
|
|
return (
|
|
('--' + option_name.replace('_', '-'), str(retention_config[option_name]))
|
|
for option_name, value in retention_config.items()
|
|
)
|
|
|
|
|
|
def prune_archives(
|
|
dry_run,
|
|
repository,
|
|
storage_config,
|
|
retention_config,
|
|
local_path='borg',
|
|
remote_path=None,
|
|
stats=False,
|
|
):
|
|
'''
|
|
Given dry-run flag, a local or remote repository path, a storage config dict, and a
|
|
retention config dict, prune Borg archives according to the retention policy specified in that
|
|
configuration.
|
|
'''
|
|
umask = storage_config.get('umask', None)
|
|
lock_wait = storage_config.get('lock_wait', None)
|
|
|
|
full_command = (
|
|
(local_path, 'prune', repository)
|
|
+ tuple(element for pair in _make_prune_flags(retention_config) for element in pair)
|
|
+ (('--remote-path', remote_path) if remote_path else ())
|
|
+ (('--umask', str(umask)) if umask else ())
|
|
+ (('--lock-wait', str(lock_wait)) if lock_wait else ())
|
|
+ (('--stats',) if not dry_run and logger.isEnabledFor(logging.INFO) else ())
|
|
+ (('--info',) if logger.getEffectiveLevel() == logging.INFO else ())
|
|
+ (('--debug', '--list', '--show-rc') if logger.isEnabledFor(logging.DEBUG) else ())
|
|
+ (('--dry-run',) if dry_run else ())
|
|
+ (('--stats',) if stats else ())
|
|
)
|
|
|
|
execute_command(full_command)
|