I want duply to take a full backup every Saturday, but only if there was no manual full backup during the week.
I don't want a full backup to happen on any other weekday but Saturday.
Rationale: It may happen that I have to fix a backup during the week by running a full backup. Then, I want duply to skip the full backup on this Saturday and only run a full backup the next Saturday.
Currently I'm using a wrapper around duply to implement this logic. I wonder if there's a better way.
Or would I have to patch duplicity to implement an option: