I'm taking a stab at packaging the various pieces of ZODB as eggs.
One of the things I'd like to do is to separate the packages of ZODB
that are currently shipped together (BTrees, ZODB/ZEO, persistent
transaction, ZConfig) into separate packages, because each may
arguably be useful outside of what we call "ZODB" now.
One of the issues I've run into is that there are compile-time
dependencies between packages mainly due to C header files. For
example, the BTrees package assumes that it will be able to find the
cPersistence.h file, which currently ships with the "persistent"
package. I wonder if I should bother breaking the persistent and
BTrees packages apart as separate eggs. I suspect not.
I realize BTrees aren't terribly useful outside of persistent
storage, so reasonable response would be to say "don't split pieces
of ZODB up into separate subpackages unless they don't share much/any
code". In that case, I might create a "persistence" egg that
includes both the 'persistent' and 'BTrees' packages. The "ZODB" egg
might include both ZODB and ZEO (these are linked inextricably) which
depends on the "persistence" distribution. Transaction should be
dependency-free (but probably isn't, I haven't gotten that far yet).
So in any case, for ZODB, if I punted on the "one-package-one-egg"
relationship, we'd wind up with (for example):
persistence-3.6.0.egg (which would include persistent and BTrees
modules).
zodblib-3.6.0.egg (which would include ZODB and ZODB packages).
transaction-3.6.0.egg (which would include only the transaction
package).
zconfig-2.3.1.egg (which would include only the ZConfig package).
zodb-3.6.0.egg (which might be an empty "dependency" package that
depended on persistence, transaction, zodblib, and zconfig).
Anyone care?
- C
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