def checkMaxImages(backupHome, maxImages):
"""
When the number of backup images are greater than the max provided in
settings, mark the extra images to be deleted.
"""
backups = fn.getBackups(backupHome)
if len(backups.keys()) > maxImages:
toRemove = list(backups.keys())[:len(backups.keys()) - maxImages]
for id in toRemove:
fn.markBackupForDeletion(backupHome, backups[id])
def organize(backupHome):
"""
Reduce the backups to a frequency of daily for those that are
older than one day, and to weekly for those that are older
than 31 days.
"""
catagorized = _catagorize(fn.getBackups(backupHome).values())
for backup in _getExtraDailyBackups(catagorized["daily"]):
fn.markBackupForDeletion(backupHome, backup)
for backup in _getExtraWeeklyBackups(catagorized["weekly"]):
fn.markBackupForDeletion(backupHome, backup)
def checkForKeepDays(backupHome, keepDays):
"""
When the number of days a backup exists is greater than keepDays, those
older backups are deleted. Do not delete any backups if keepDays is zero.
"""
def isOld(backup):
dt = fn.toDateTime(backup)
expire = datetime.now() - timedelta(days=keepDays)
return dt <= expire
backups = fn.getBackups(backupHome).values()
toRemove = filter(isOld, backups)
for backup in toRemove:
fn.markBackupForDeletion(backupHome, backup)
def test_markBackupForDeletion(self):
backup = "2012-01-28-120628"
backupPath = join(self._backupHome, backup)
os.makedirs(backupPath)
fn.markBackupForDeletion(self._backupHome, backup)
self.assertTrue(os.path.exists(backupPath + ".delete"))
