override is probably a problem for unloading. Maybe Stef's  
substitution of PackageInfo will help.
But already having a solution for unloading a configuration that does  
not override will be great.

Alexandre

On 29 Dec 2009, at 21:33, Mariano Martinez Peck wrote:

>
>
> On Tue, Dec 29, 2009 at 9:27 PM, Alexandre Bergel  
> <alexan...@bergel.eu> wrote:
> Looks good!
> You haven't mentioned unloading. This is an important topic in my
> opinion.
>
>
> Yes, that's true. I am 100% agree. However, these were my little  
> next steps for the Metacello configurations for Pharo.
> Regarding the unload, I really don't know who should provide that,  
> Metacello ? Monticello ? Pharo it self?
> Does someone know about this?  The main problem are the overrides   
> because you should go back to anothe version, and I don't know if  
> you have it or you loose it.
>
> Thanks
>
> Mariano
>
> Alexandre
>
> On 29 Dec 2009, at 15:11, Mariano Martinez Peck wrote:
>
> > Hi folks. I just wanted to write down my ideas of the Metacello
> > configurations for our Pharo Images. The idea is to use Metacello to
> > manage the dependencies and version of the packages, have a history
> > of the releases and be more modular. You will be able to take a core
> > image and easily load what you want.  We will have a
> > ConfigurationOfPharo and that's what you will probably use. However,
> > this conf depends and delegates to another configurations (the conf
> > of each package). So, the first step is to make each little conf to
> > work, and then, we focus in the pharo one.
> >
> > So....lists of points:
> >
> >  1) I have been writing several configurations so far. One
> > configuration per external project that is loaded in Pharo Dev
> > images. Examples: Shout, OCompletion, RefactoringBrowser,
> > OmniBroswer, O2, etc..
> > The idea is to implement and be sure each of this conf is working
> > before doing the ConfigurationOfPharo.
> >
> > 2) All configurations will be published here:  
> > http://www.squeaksource.com/MetacelloRepository
> > This repository is like the ibiblio for maven, or the Universe for
> > the apt-get, or similar. In a near future we will have tools that
> > work with this (Esteban Lorenzano is working in Loader for example).
> >
> > 3) Each configuration must be PERFECTLY loaded in a Pharo Core image
> > without doing or installing nothing. To do this, I have to declare
> > properly the dependencies.
> > This mean, that you will be able to take a core image load the
> > ConfigurationOfShout for exameple, or OCompletion and you will be
> > able to load it. Metacello will take care of all the dependencies.
> > You will also be able to install part of the project and not all
> > (for example, only core or core + tests, or whatever).
> >
> > 4) I started with the Dev packages. We will do this test first to
> > see if Metacello really help us in our project. If this goes well,
> > then, in a second step, we will take care about the Web images.
> >
> > 5) I started with the 1.0 Dev packages. 1.1 is unestable and several
> > external packages even don't load in it. So, will do 1.1 in a second
> > step.
> >
> > 6) As there were no versions of Metacello in all the external
> > projects, I started with 1.0 in ALL. Shout 1.0, OCompletion 1.0, RB
> > 1.0, etc. This has nothing to do with Pharo 1.0. They are just the
> > version number. And after this is released, we really need PLEASE,
> > that the maintainers of those packages also creates the following
> > versions for them.
> >
> > 7) I took as a base, the versions of the 10496 image. I have been
> > using this image since in was release, 12 hours a day, and seems to
> > be very stable to me. I mean, the version 1.0 of
> > ConfigurationOfPharo will be like the 10496 image. When everything
> > is done and working, create a new image will be very easy.
> >
> > 8) We need some features from Metacello which are in the todo list.
> > So, we will have to wait a bit for them.
> >
> > OK, that's all. What do you think?
> >
> > Soon I will send an email for the configurations of all projects and
> > will ask for help and feedback from their developers.
> >
> > Cheers,
> >
> > Mariano
> >
> >
> > _______________________________________________
> > Pharo-project mailing list
> > Pharo-project@lists.gforge.inria.fr
> > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
>
> --
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> Alexandre Bergel  http://www.bergel.eu
> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.
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-- 
_,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
Alexandre Bergel  http://www.bergel.eu
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