[rdiff-backup-users] Feature suggestion: Ability to keep a certain number of snapshots

[Peter Schuller]

Hello,

I am always reluctant to use --remove-older-than in scripts because
there is always the possibility that the clock is screwed up for
whatever reason and it decides to remove all reverse diffs. Often I
would find it very useful to be able to say "keep the N newest
snapshots and remove the rest", which is safer.

In addition, it tends to give a pretty natural balance between
frequently changing backup targets and targets that seldom changes. If
a target changes relatively seldom (e.g., /etc) one might be more
inclined to want to keep 30 snapshots instead of 30 days (the latter
of which might translate into just the latest mirror).

Thoughts?

-- 
/ Peter Schuller, InfiDyne Technologies HB

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