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Dan Korostelev wrote:
> Hi there.
> One of most annoying dependencies is the "zope.app.appsetup" package.
> Some packages, like zope.session depend on it just to provide
> "boostrap setup" for using these packages in context of "zope3, the
> application server", however, they can be greatly used without it, so
> this is really awful dependency.
> I saw that, on last sprint, the subscriber for error reporting utility
> was moved from zope.error to zope.app.appsetup, so zope.error could
> lose the dependency on zope.app.appsetup. So, the first question is:
> do we want to move all subscribers like that? It doesn't seem like a
> best solution though, because then zope.app.appsetup should depend on
> all those packages, like zope.session. :-/

Making the "application" depend on the "libraries" is fine, and the name
of the package ('appsetup') suggests that it *should* be the place with
all the dependencies:  OO frameworks need to have *somebody* wire in the
pieces, and that bit is usually the part which runs at startup.

> The problem is that the bootstrap code in zope.app.appsetup is really
> "zope3, the application"-specific, so it uses "root folders",
> persistent site managers, site management containers,
> ZopePublication.root_name, and so on. The code itself is okay, because
> it provides an easy way to setup misc. components for the "zope3
> application server", but still it's a problem, because it's probably
> impossible to refactor it in a application-independent way (until we
> provide some cool pluggable application bootstrapping mechanism, which
> is probably will become too complex and not needed/used by most
> application developers).
> So, the general question is where should we move the bootstrap setup
> code? Or, alternatively, we could just leave it in place, but greatly
> separate it from another package components and provide
> zope.app.appsetup as an "extra" dependency (sigh...).

+1 for moving all that stuff into the application.

- --
Tres Seaver          +1 540-429-0999          tsea...@palladion.com
Palladion Software   "Excellence by Design"    http://palladion.com
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