Save weekly, monthly backups

[Krysztophe]

In addition to the N previous backups, it would be nice to keep N' weekly backups and N'' monthly backups, to be able to look back into the far past.

[orgrim]

Hi,

this looks interesting but quite difficult to implement because we do not have any control on how the runs are scheduled. Maybe a formulae like "keep 1 backup every N", N being 7 when scheduled daily? and so on for month

This would still have to be translate to a form easy to use in a command line option

Regards,

[Krysztophe]

I would just specify:

If present, at least a backup is kept for each of the previous purge_keep_monthly_backups months, and each of the previous purge_keep_weekly_backups weeks.

Eg, if purge_keep_monthly_backups = 2,

• when purging, do not purge the oldest of the backups younger than 2 months
• do not purge the oldest of the backups younger than 3 months

It can be tricky, because a 1 week old backup may be kept because of purge_older_than >7 OR purge_keep_weekly_backups >0 , and a 4 weeks old backup may be kept because purge_keep_weekly_backups > 4 OR purge_keep_monthly_backups >0.