What is SnapRunner?
snaprunner is a wrapper script in Python which adds some functionality to Drive SnapShot. It's an open source command line script and can be used and extended by anyone.
It adds following features:
Alternately creates full and differential backups in certain intervals. Clean-up of either differential and or full backups which are older than a given amount of days. Status mail upon successful/failed backup runs. Automatically creates meaningful backup file names by including machine, drive, date/time and backup generation count. Provides simulation of backup and clean-up.