[Zope] Zope database format for Zope 2.0

[Brian Lloyd]

Hi all.

We've been working out whether or not the final release of
Zope 2.0 should try to support the older .bbb database format
as well as the new ZODB3 format. There are a number of technical, 
backward-compatibility, documentation and support problems associated 
with trying to support the old format, so I am leaning toward deciding
that the 2.0 final release will only use ZODB3 format, and that:

  a) users with current dbs can run a simple command 
     line tool to create a converted ZODB3 file from
     your existing Data.bbb

or

  b) we could possibly provide some kind of startup logic
     in Zope2.0 that would automagically convert your
     existing .bbb file to a ZODB3 .fs file, if all it
     was able to find is an old-format file at startup.

Before making a final decision though, I wanted to throw this out 
to the community for comment, to make sure that there are not problems 
with this approach that we haven't considered...


Brian Lloyd        brian@digicool.com
Software Engineer  540.371.6909              
Digital Creations  http://www.digicool.com