Source code for success_backup_check.check_backup

import os
import logging
from datetime import datetime, timedelta


def check_backup(directory, days):
    """
    Check a Directory if the last modify date is older than n days
        Args:
            directory: Directory witch will be checked
            days: modify time in days

        Returns: False --> the dir is out of date
                 True --> everything is fine
    """

    logging.debug('check %s if up to date' % directory)

    # var for the newest folder in directory
    newest_item = None

    # search for the newest backup in directory
    for sub_dir in os.listdir(directory):

        # convert the folder name into a datetime object
        try:
            sub_dir_datetime = datetime.strptime(sub_dir, "%Y-%m-%d_%H:%M")
        except ValueError:
            sub_dir_datetime = None

        # if the folder was converted into a datetime object, check for the newest one
        if sub_dir_datetime:

            if not newest_item:
                newest_item = sub_dir_datetime

            if sub_dir_datetime > newest_item:
                newest_item = sub_dir_datetime

    # no directory was backup
    if newest_item is None:
        logging.warning('there is no backup @ %s' % directory)
        return False

    # current time minus the day delay
    max_backup_age = datetime.now() - timedelta(days=int(days))

    if max_backup_age > newest_item:
        logging.warning('%s is outdated' % directory)
        return False
    else:
        logging.info('%s is fine' % directory)
        return True