espie fa990a1dba give dpb more knowledge about distfiles.
- keep a stash indexed by checksum, so dpb can identify duplicate files.
- in a full bulk, if the scan has no errors, write to a ${DISTDIR}/history
file  the files encountered in ${DISTDIR}/distinfo that seem to no longer
be needed (with full timestamp and checksum info).

Should be enough info to know when to expire old DISTDIR entries.
2012-01-08 20:28:37 +00:00
..
2010-10-27 09:04:37 +00:00
dpb
2012-01-08 20:28:37 +00:00
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2011-11-16 10:56:57 +00:00
2011-11-16 23:05:28 +00:00
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