restic-compose-backup/restic_volume_backup/restic.py

import logging
from subprocess import Popen, PIPE

logger = logging.getLogger(__name__)


def init_repo(repository):
    """
    Attempt to initialize the repository.
    Doing this after the repository is initialized
    """
    run_command([
        "restic",
        "-r",
        repository,
        "init",
    ])


def backup_volume(repository, volume):
    run_command([
        "restic",
        "-r",
        repository,
        "--verbose",
        "backup",
        volume.destination,
    ])


def snapshots(repository):
    run_command([
        "restic",
        "-r",
        repository,
        "snapshots",
    ])


def check(repository):
    run_command([
        "restic",
        "-r",
        repository,
        "check",
    ])


def run_command(cmd):
    logger.info('cmd: %s', ' '.join(cmd))
    child = Popen(cmd, stdout=PIPE, stderr=PIPE)
    stdoutdata, stderrdata = child.communicate()

    if stdoutdata:
        logger.info(stdoutdata.decode().strip())
        logger.info('-' * 28)

    if stderrdata:
        logger.info('%s STDERR %s', '-' * 10, '-' * 10)
        logger.info(stderrdata.decode().strip())
        logger.info('-' * 28)

    logger.info("returncode %s", child.returncode)
    return child.returncode