feature request: "Purge backups which are older than..."

[medialwerk]

Hello Maxisam,
first: thank you very much for maintaining this repo! (I already used mgob from stefanprodan).
I was searching today for a possibility to purge all backups which are older than 30 days, but sadly I did not found any information about it. Is it already possible? - If not, it would be awesome to support the purge command in the configuration yml.
Thank you very much and best regards,
Ferdinand

[maxisam]

I think retention is what you want

mgob/test/travis/mongo-test.yml

Line 3 in eea0e77

retention: 5

[maxisam]

close for now. let me know if you still have issues