[Zope3-dev] RFC: Use ConfigParser for High-Level Configuration

[Jim Fulton]

Dieter Maurer wrote:
> Jim Fulton wrote at 2006-3-5 13:56 -0500:
> 
>>...
>>Why do you think it's better to have to create a monolithic schema for all
>>applications bits that want to use the configuration file, rather than letting
>>individual applications define how to read their own data independently?
> 
> 
> You already can do this now with ZConfig -- no need for
> a monolithic schema:
> 
>   I recently implemented a ZServer based NNTP server.
>   There was no monolithic schema required. The new "sectiontype"
>   was described in "NNTPServer/component.xml", the configuration
>   file simply imported the package and decribed the NNTP-Server.
> 
> 
> Formerly, this was possible only for a few abstract types
> with corresponding multisections (such as servers, storages, ...).
> 
> In modern Zope[2] schemas, there is a general purpose abstract type
> precisely for this kind of extensions.

Where is this documented?

Let's pursue this a bit.

Would it be possible to write a configuration file that loaded
it's own schemas?  For example, suppose I wanted to configure
zope and twisted, could I do something like:

   import zope.app.appsetup
   import zope.app.twisted
   import zope.testrunner

   site-definition site.zcml

   interrupt-check-interval 200

   <server>
     type HTTP
     address 8080
   </server>

   <zodb>
     <filestorage>
       path Data.fs
     </filestorage>
   </zodb>

   <accesslog>

     <logfile>
       path access.log
     </logfile>
   </accesslog>

   <eventlog>

     <logfile>
       path z3.log
     </logfile>

     <logfile>
       path STDOUT
     </logfile>
   </eventlog>

   tests-pattern f?tests$
   tests-path src
   module-pattern !^(ZConfig|BTrees|persistent|ThreadedAsync|transaction|ZEO|ZODB|twisted|zdaemon|zope[.]testing|)[.]


Then free the main program from having
to specify a schema?

If so, how do I make this so?  Being able to do this *soon* would help
me make progress on simpler Zope packaging and simpler server support.

Jim

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