[Grok-dev] Re: Autoincluding ZCML for package dependencies

[Martin Aspeli]

Tres Seaver wrote:
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> Martijn Faassen wrote:
> 
>> We make this explicit in the ZCML:
>>
>> <autoinclude package="." />
>>
>> This will cause all the ZCML dependencies of your package to be included 
>> (all meta.zcml files first, then configure.zcml).
>>
>> If you don't want your package to do auto-inclusion of its dependencies, 
>> you shouldn't use it and do manual inclusion. Note that the directive 
>> only includes direct dependencies, not indirect ones.
>>
>> I don't see how an entry point is going to make this more explicit. We 
>> do this in ZCML as it fits the way inclusions are done in ZCML - it's 
>> triggered during ZCML loading just like normal <include> is.
>>
>> The only time auto-inclusion is going to kick in without you directly 
>> asking for it is if you include a package's configure.zcml and *it* 
>> contains an autoinclude directive. This is little different from 
>> includes a package's configure.zcml now, though - you will get its 
>> manual includes now.
> 
> Sorry, I didn't realize that you were making an explicity gesture in the
> triggering package's ZCML.  I'm fine with doing it in ZCML rather than
> in setup.py.

Plone is interested in this too (slugs suck!). Wichert did some 
proof-of-concept work with entry points. How else would you do it? 
Scanning sys.path?

I don't have time to read up on the code now, but hopefully the solution 
should generalise to Plone easily enough.

Martin

-- 
Author of `Professional Plone Development`, a book for developers who
want to work with Plone. See http://martinaspeli.net/plone-book