Re: [gentoo-dev] Making a common sub-profile for no-multilib

["Michał Górny" <mgorny@gentoo.org>]

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Dnia 2014-06-25, o godz. 13:01:48
Ian Stakenvicius <axs@gentoo.org> napisał(a):

> At the moment there are two profiles in particular that do this,
> amd64/no-multilib and hardened/linux/uclibc/amd64 ..  It's possible or
> likely there are others, too, on other arches perhaps.
> 
> In general, it's good that repoman notices this because those profiles
> don't support having the 32bit deps installed.  However, if one of
> those profiles ever moves from a dev profile to a stable one (and
> blueness mentioned he would like to make uclibc/amd64 stable), then
> those dependency.badindev warnings will suddenly turn into
> dependency.bad errors.
> 
> The solution to this would seem to be to package.mask all of these
> 32-bit packages in the pure 64bit profiles.  However, having to do
> this in multiple locations is annoying.
> 
> I would like to propose adding 'no-multilib/[arch]/package.mask'
> sub-profile(s), to allow all of these masks to go in one place.
> 
> Populating package.mask should be fairly easy for amd64 at least,
> since anything depending on an app-emulation/emul-* will need to be
> masked.  However the merits of where the package.mask will go needs
> discussion.  Perhaps, for instance, it's time to adjust the profile
> tree hierarchy more aggressively instead of "piling on" with yet
> another subdir.

Forgive me for using such a words, but the profile tree is a well
stacked pile of crap. We have a dozen random profiles for each arch
then a dozen other profiles forked off them 'because the generic
arch profiles have crap' and a lot of profiles that inherit others
in a complex and semi-random manner.

For example, abi_x86_64 and abi_x86_32 each need to be forced in 4
profiles. This proves that we have 4 distinct profiles for amd64 which
need to be kept in sync. If I change something, I need to perform
the change in 4 different profiles and make sure I didn't screw
something up.

Then there's the x32 profile that inherits amd64 profile and therefore
requires reverting some of the stuff done on amd64. To do a complete
common change to x86-family multilib (like adding IUSE_IMPLICIT) I have
to modify 9 profiles.

Now let's add to this circa 8 mips profiles, around 3 ppc profiles, 4
arm profiles and some more. Every arch organized in somewhat different
and totally non-documented manner.

Long story short, doing anything to Gentoo profiles is utter pain
and comes with random breakage guarantee. Therefore, I'm asking -- nuke
those damn profiles, and start over! The current situation is
completely unmaintainable.

-- 
Best regards,
Michał Górny

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