[PATCH v3 3/5] compact: preserve backup database until compacted database is in place

[David Bremner]

Tomi Ollila <tomi.ollila at iki.fi> writes:

> It is less error prone and window of failure opportunity is smaller
> if the old (backup) database is always renamed (instead of sometimes
> rmtree'd) before new (compacted) database is put into its place.
> Finally rmtree() old database in case old database backup is not kept.

pushed, 

d