Re: [Zope3-dev] Splitting package configuration

2007-05-25 Thread Stephan Richter
On Wednesday 23 May 2007 12:24, Fred Drake wrote:
 Official story doesn't mean a lot to me these days.  I think of
 individual ZCML files as interface points: someone might reasonably be
 using them directly (unless the filename starts with an underscore).

But you are describing the internal ZC thinking here, certainly not something 
that has been widely or publically communicated. There are very few people 
out there using eggs. Most download a release, create an instance and drop 
the add-on packages in there, some using SETUP.cfg and others 
creating/copying the slugs by hand. 

  I hope it is avoidable with the above insight.

 Again, if you think there's an official story that involves
 *requiring* people to rely on those nasty slug files, you're deluding
 yourself.  We've always maintained that those are convenience (for
 some definition of wouldn't you like to shoot yourself in the
 foot?).

But this is how the latest release and trunk works! All of my projects still 
work this way. Nowhere else is a different process documented.

Regards,
Stephan
-- 
Stephan Richter
CBU Physics  Chemistry (B.S.) / Tufts Physics (Ph.D. student)
Web2k - Web Software Design, Development and Training
___
Zope3-dev mailing list
Zope3-dev@zope.org
Unsub: http://mail.zope.org/mailman/options/zope3-dev/archive%40mail-archive.com



[Zope3-dev] Splitting package configuration

2007-05-23 Thread Stephan Richter
Hi everyone, 

I built my first Zope 3 instance with buildout yesterday. After I got an 
initial version working, I found it pretty lame to use zope.app.zcmlfiles. 
With zope.app.zcmlfiles I had 100 eggs without it 84 eggs (this is somewhat 
project-specific.)

However, I had to add several unneeded dependencies, because the 
main configure.zcml of a package usually also includes the 
browser configure.zcml. For example, I have a dependency 
on zope.app.form, just because zope.app.securitypolicy (and other 
packages) create old-style forms. 

In fact, I do not even use anything declared in IDefaultBrowserLayer, so any 
browser configure.zcml is totally overhead for in this case. In fact, 
anyone creating a new skin from scratch will want to avoid the same overhead.

I think the solution can be very simple and be effectively backward-compatible 
for most cases:

1. Do not include the browser configure.zcml files in the 
main configure.zcml of that package.

2. 
(a) If the package has a SETUP.cfg and package-configure.zcml, then add the 
browser configure.zcml include to that package-configure.zcml.

(b) If the package is currently loaded via zope.app.zcmlfiles's
configure.zcml, then we will add the browser configure.zcml there.

This solution would not be fully backward-compatible with people including 
package configure.zcml files manually. I think this is okay, since people 
often do not even want the browser stuff.

A fully backward solution would be to put all the generic package 
configuration in a new ZCML file and combine them both in configure.zcml. 
However, I find that solution very undesirable, so I hope noone will like it 
either. :-)

I would like to get this change started as soon as possible to make it work 
for Zope 3.4. If noone objects, I will start with this in a few days.

Regards,
Stephan
-- 
Stephan Richter
CBU Physics  Chemistry (B.S.) / Tufts Physics (Ph.D. student)
Web2k - Web Software Design, Development and Training
___
Zope3-dev mailing list
Zope3-dev@zope.org
Unsub: http://mail.zope.org/mailman/options/zope3-dev/archive%40mail-archive.com



Re: [Zope3-dev] Splitting package configuration

2007-05-23 Thread Fred Drake

On 5/23/07, Stephan Richter [EMAIL PROTECTED] wrote:

This solution would not be fully backward-compatible with people including
package configure.zcml files manually. I think this is okay, since people
often do not even want the browser stuff.


That's hard to predict; some do, some don't, I don't know where most
happens to fall.


A fully backward solution would be to put all the generic package
configuration in a new ZCML file and combine them both in configure.zcml.
However, I find that solution very undesirable, so I hope noone will like it
either. :-)


I don't like that, but I don't think it's avoidable.


I would like to get this change started as soon as possible to make it work
for Zope 3.4. If noone objects, I will start with this in a few days.


3.4 is never going to be released, is it?  That might bother some
people (though not me).


 -Fred

--
Fred L. Drake, Jr.fdrake at gmail.com
Chaos is the score upon which reality is written. --Henry Miller
___
Zope3-dev mailing list
Zope3-dev@zope.org
Unsub: http://mail.zope.org/mailman/options/zope3-dev/archive%40mail-archive.com