borgmatic/borgmatic/borg/extract.py

47 lines
1.5 KiB
Python

import logging
import sys
import subprocess
logger = logging.getLogger(__name__)
def extract_last_archive_dry_run(repository, lock_wait=None, local_path='borg', remote_path=None):
'''
Perform an extraction dry-run of just the most recent archive. If there are no archives, skip
the dry-run.
'''
remote_path_flags = ('--remote-path', remote_path) if remote_path else ()
lock_wait_flags = ('--lock-wait', str(lock_wait)) if lock_wait else ()
verbosity_flags = ()
if logger.isEnabledFor(logging.DEBUG):
verbosity_flags = ('--debug', '--show-rc')
elif logger.isEnabledFor(logging.INFO):
verbosity_flags = ('--info',)
full_list_command = (
local_path, 'list',
'--short',
repository,
) + remote_path_flags + lock_wait_flags + verbosity_flags
list_output = subprocess.check_output(full_list_command).decode(sys.stdout.encoding)
last_archive_name = list_output.strip().split('\n')[-1]
if not last_archive_name:
return
list_flag = ('--list',) if logger.isEnabledFor(logging.DEBUG) else ()
full_extract_command = (
local_path, 'extract',
'--dry-run',
'{repository}::{last_archive_name}'.format(
repository=repository,
last_archive_name=last_archive_name,
),
) + remote_path_flags + lock_wait_flags + verbosity_flags + list_flag
logger.debug(' '.join(full_extract_command))
subprocess.check_call(full_extract_command)