Re: [gentoo-alt] [PREFIX] prefix keywords need to go (?)

[Markus Duft]

On Wed, 2009-03-25 at 11:44 +0100, Michael Haubenwallner wrote:
> On Wed, 2009-03-25 at 07:50 +0100, Markus Duft wrote:
> > On Wed, 2009-03-25 at 00:30 -0500, Jeremy Olexa wrote:
>
> > > Any other thoughts?
>
> > however i talked to haubi a while back about keywords. he for sure has
> > some more wise words to say :)
>
> LOL!
> But indeed, my brain cooks an idea for some time now - time to serve
> (thank you for the trigger!):

:)

>
[snip]
> Now I want to tell PM which ebuild-keywords to use for my
> distro-instance, where only 1. and 2. really would make sense (sample
> for non-Prefix):
>      1. 'amd64 hppa ~x86'
>      2. 'amd64 hppa ~mips ~ppc ~x86'
>      3. 'amd64 hppa ~mips ~ppc x86'
>      4. '~amd64 ~hppa ~mips ~ppc ~x86'
>      5. 'amd64 ~hppa ~mips ~ppc x86'
>
> This could be done by telling PM how to merge KEYWORDS and
> HAUBIDIST_KEYWORDS in etc/make.conf or profile/make.conf, like:
>      1. ACCEPT_DISTRO_KEYWORDS='HAUBIDIST'
>      2. ACCEPT_DISTRO_KEYWORDS='HAUBIDIST ~GENTOO'
>      3. ACCEPT_DISTRO_KEYWORDS='HAUBIDIST GENTOO'
>      4. ACCEPT_DISTRO_KEYWORDS='~HAUBIDIST GENTOO'
>      5. ACCEPT_DISTRO_KEYWORDS='GENTOO ~HAUBIDIST'
> where 'HAUBIDIST' maps to 'HAUBIDIST_KEYWORDS' and 'GENTOO' maps to
> 'KEYWORDS'.
>
> This eventually also could apply for Gentoo Hardened, to not have that
> large list in package.mask, but HARDENED_KEYWORDS in the ebuilds, and
> ACCEPT_DISTRO_KEYWORDS='HARDENED ~GENTOO' in make.conf.
>
> Because both KEYWORDS and HARDENED_KEYWORDS would be in upstream ebuild,
> this also could work for HAUBIDIST in make.conf:
>         ACCEPT_DISTRO_KEYWORDS='HAUBIDIST ~HARDENED'
>
> For Prefix:
>
> We could have PREFIX_KEYWORDS in the maintree-ebuild, and for HAUBIDIST
> - when it is a Prefix distro - to have in make.conf:
>         ACCEPT_DISTRO_KEYWORDS='HAUBIDIST ~PREFIX'
>
> For the vanilla "Gentoo Prefix Distribution", this would mean to have:
>         ACCEPT_DISTRO_KEYWORDS='PREFIX'
> the vanilla "Gentoo Linux Distribution" would ship with:
>         ACCEPT_DISTRO_KEYWORDS='GENTOO'
> and the vanilla "Gentoo Hardened Linux Distribution" with:
>         ACCEPT_DISTRO_KEYWORDS='HARDENED'
>
> What else would be needed for the whole topic:
>       * helpers to manage/merge/update my private distro-tree.
>       * helpers to set up my private distro-mirror.
>       * repoman support for additional keyword variables
>       * ...

this whole proposal would fix multiple problems:

1) main and prefix keywords are different, but thats ok if prefix
keywords are PREFIX_KEYWORDS - we could do our own thing here.

2) it would solve the problem "how does portage know which packages can
i merge in a prefixed environment" - no need to trigger based on
inherit, EAPI - or something worse :)

3) it would ease porting to prefix: simply allow merging main ebeuilds
in prefix by adding GENTOO to the ACCEPT_DISTRO_KEYWORDS.

4) it would make gentoo a "real" meta distro as haubi said, since
gentoo's (linux or prefix) "consumers" can do their own thing with
keywords completely different from ours. it would be no problem to use -
for example - keywords like "mduft" and "haubi" (lol), as long as they
are (fex) SALOMON_KEYWORDS.

what about forwarding this thread to portage-dev@?

Cheers, Markus

>
> </braindump>
>
> Thoughts?
>
> /haubi/