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On Mon, 14 Sep 2009 20:28:26 +0200 |
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Sebastian Pipping <webmaster@××××××××.org> wrote: |
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> Ciaran McCreesh wrote: |
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> > Because an overlay model has only a single foo-1.2. Think of it like |
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> > stacks of paper. You've got your main repository: |
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> > |
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> > ::gentoo foo-1.1 foo-1.2 foo-1.3 |
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> > |
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> > and on top of that you put your overlay: |
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> > |
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> > ::extras foo-1.2 foo-1.4 |
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> > ::gentoo foo-1.1 foo-1.2 foo-1.3 |
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> > |
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> > and then looking down from the top, all an overlay model package |
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> > manager sees is the foo-1.2 from the overlay. There's no |
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> > foo-1.2::gentoo and foo-1.2::extras, there's just a single foo-1.2 |
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> > that's made from (gentoo + extras). |
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> |
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> I see. So it would not work for dependencies but it should work for |
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> masking. That alone wouldn't make me happy, though. |
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|
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I don't think it would necessarily work for masking either the way |
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Portage sees it (although iirc it would have done for the way Pkgcore |
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did things). Masking doesn't make foo-1.2::extras invisible, it just |
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makes it visible but unusable. Even if you do take the "ignore masked |
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things entirely" approach, the behaviour's highly weird when things |
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like repository package.masks become involved -- I'm not sure you could |
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define a consistent model that does 'the right thing' purely on |
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overlays (although feel free to try...). |
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|
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> > There's a different way of looking at it that focuses more on the |
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> > repository level view at [1]. |
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> > |
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> > [1]: |
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> > http://ciaranm.wordpress.com/2009/04/16/distributed-distribution-development-and-why-git-and-or-funtoo-is-not-it/ |
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> |
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> Interesting read. Can you think of anything technical that would make |
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> moving portage to this model impossible? |
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|
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Other than the usual problems with moving Portage to things? No. The |
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multiple repository model works fine with Gentoo, and it's possible to |
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set it up so that it looks to the user exactly like an overlay model |
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except where ::repo deps are involved. |
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|
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-- |
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Ciaran McCreesh |
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