yvolchkov / snapbtr Goto Github PK

I tried out snapbtr and the simplicity is perfect for my use case.
Every day I backup my files to a computer with a BTRFS filesystem.
Now I want to keep daily snapshots of my files as well, so I can have versioned backups.

I keep my files in /media/user/backup and snapshots in /media/user/backup_snapshots.
I'll be running this command as a daily cronjob for the root user:
snapbtr -cs /media/user/backup /media/user/backup_snapshots --target-backups 100 --preserve-days 7

It works great and I like that I can easily browse the snapshot in the default file manager.
I was even able to manually remove snapshots from the file manager, as standard user.
Is it supposed to be like that? Because you mention "Root permissions are not required for creating snapshot" but I was also able to manually remove snapshots as non root user.

Could you provide an example of how the scoring mechanism works?
With the above command (100 target backups and preserve 7 days).
What would the snapshot folder look like in one month? After 6 months, one year and two years?
I don't quite get the scoring mechanism.

I read through the code and noticed the oldest snapshot is never removed.
Is this true? In my use case I don't need the oldest snapshot to stay around forever.
So can I just manually remove it after a few months or so to free up disk space?