And while we are at it, on the gdrive side, I use a https://script.google.com to remove the oldest ones:
function FindEmptyFolders()
{
var pageSize = 200;
var folders = null;
var token = null;
var i = null;
var thefolder_name = 'backup';
var DeleteLimit = new Date().getTime() - 3600 * 1000 * 24 * 14;
Logger.clear()
var folders = DriveApp.getFoldersByName(thefolder_name);
while (folders.hasNext()) {
var folder = folders.next();
// http://stackoverflow.com/questions/25749906/permanently-delete-file-from-google-drive
var files = folder.getFiles();
while (files.hasNext()) {
var file = files.next();
if (file.getDateCreated().getTime() < DeleteLimit) {
Logger.log(file.getName());
Drive.Files.remove(file.getId());
}
}
}
MailApp.sendEmail('myemail@gmail.com', 'Old backups script removal', Logger.getLog());
}
This one removes backups older than:
var DeleteLimit = new Date().getTime() - 3600 * 1000 * 24 * 14;
hmm... 2 weeks I'd say (3600 1000 24 is a day worth of milliseconds, and the 14 would be the number of days).