Re: Plans to port CPS on Zope 2.12 or ZTK

Le 30/08/2010 20:42, Racinet Georges a écrit :
> Hi everyone,
>
> this is a follow up to a discussion that started on cps-users and also
> to a few direct contacts I've had in the past few weeks.
>
> While it's rather clear that CPS is really not up to the current
> standards of the Python and Zope worlds, it's amazing that it still has
> a good reputation among those that have experienced developing with it.
>
> By « current standards », I mean at least Zope 2.12 or ZTK on python
> 2.6, setuptools/distribute packaging, zc.buildout or virtualenv support,
> and of course the WSGI goodness that comes with that.
> This is a bit sad, especially if one remembers a few typical Zope 3
> concepts have actually been inspired by ancestors from CPS.
>
> Porting to a recent Zope or ZTK version would certainly be a big work.
> I'm most probably the only one around working almost full time around
> CPS, but gathering half a dozen contributors with more limited time
> dedication looks feasible from my point of view, and that'd make the
> project more than a wish.
>
> There are lots of open questions, technical and organisational. Maybe
> it's the right time to start discussing them in the open.
>
> Sooo… who's interested ?

I can help with all the current ztk/zope3/bb/buildout/distribute/wtf standards. 
I can't garantee I'll be available to provide a significant amount of work, but 
I can attend any sprint on the topic.

Christophe

> In particular, what would bother you with the idea ? Stating the other
> way round : what would be the breakthrough to get you in ? No commitment
> asked at this point.
>
> Below's my comment on the CMF dependency by the way.
>
> Cheers,
>
> On Aug 20, 2010, at 9:57 AM, Encolpe Degoute wrote:
>>
>>>> Have you plan to port CPS on Zope 2.12/2.13 or on pur Zope 3 ?
>>>
>>> Ahah, the big question, and you're not the first to ask. I'm all in
>>> favor of a move to Zope 2.12 for CPS 3.6, but certainly not within the
>>> next three months.
>>> Pure ZTK (Bluebream maybe?) would be probably even better, but I just
>>> don't know if that would be possible without sacrificing too much.
>>
>> As CMF is not available in pure bluebream version (and no work is done
>> in that way as far I know) it would be difficult to port CPS on
>> bluebream without removing CMF.
>
> You know that doesn't sound so bad actually ? Almost joking here, but
> I'd more concerned about CPS being deeply a Zope 2 application than
> about the CMF dependency. I actually think any porting project would
> start by reducing that latter dependency.
>
> For instance, I'm pretty sure that rewriting CPSWorkflow from scratch
> with almost no CMF dependency would really be a good thing and would
> mean less work than trying to make it work on current CMF. And it would
> save everyone, especially custom project developers, countless hours of
> painful debugging (try and follow with pdb why a transition does not
> pass if you haven't done that already).
>
> Also, I believe that lots of those CMF concepts that are in use in CPS
> almost as-is have found their way into ZTK.
>
>>> Now the thing is that I personally lack real experience on Zope > 2.9,
>>> and probably won't get any before such works could begin. Not to say
>>> that'd be a real problem for implementation, but that's a big one in the
>>> foreseeing department (we can start discussing possibilities on
>>> cps-devel if you wish). Also, beforehand advice wouldn't be enough: we
>>> obviously need more active developers.
>>
>> Yes. It's a community reboot.
>>
>>> I know there are interested and knowledgeable people around, but no one
>>> (including me) will move until it starts looking doable. If everyone
>>> showed up in a discussion with no required commitment, things could very
>>> well be different.
>>>
>>> As for the immediate future. I'm a bit tired of big jumps. (...) I
>>> guess any real implementation work
>>> would have to wait until 2011.
>>
>> I'm understanding that take this big project on your shoulders is hard.
>
>
>
>> I'm asking for this to know if I can motive my boos to come on this
>> project.
>
>
>
> --
> Georges Racinet, http://www.racinet.fr
> Zope/CPS expertise, assistance & development
> GPG: 0x4862FFF7
>
>
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>
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