[Borgbackup] Option to keep yearly backup counting from first backup?

[Clemence Magnien]

Hello,

replying to myself since for some reason I didn't receive Dan's messages
but was able to find them on the list archive.

Thanks Dan for your answer, the renaming trick worked like a charm and
I now have modified my backup scripts accordingly. :)

Clémence

On Tue, Jan 14, 2020 at 06:30:55PM +0100, Clemence Magnien wrote:
> Hi,
> 
> I hope this is the right place to post this question.
> 
> I've been using borg for a while for backing up my home directory
> and am very satisfied with it.
> 
> I'd like to keep:
>  - 4 daily backups
>  - 4 weekly backups
>  - 12 monthly backups
>  - 1 backup per year for all years since I've started using it.
> 
> As I started using borg in may 2017, the keep-yearly option of prune wants to keep
> the latest backup in 2017 and remove the ones before that.
> 
> I however would like to preserve as much of my history as possible, so
> I would like to keep:
>  - one backup for may 2017
>  - one backup for may 2018
>  - 12 monthly backups for 2019
>  - (and 4 weekly and 4 daily recent bakcups)
>  
> Is there a possibility to count the backups you want to keep from the time
> I started using borg rather than counting one at the end of each calendar
> year?
> 
> I know that I can use the --keep-within option but it seems a bit convoluted.
> 
> Best,
> Clémence
> 
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