Re: To buildroot, or not to buildroot

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On Thu, 7 Oct 2021 at 09:52, Neal Gompa <ngompa13@xxxxxxxxx> wrote:
>

> >
> > That is the theory, yes, that grobisplitter isn't required.
> > But nobody was able to say that was for certain.  Thus, it needs to be tested.
> >
>
> I've verified this with my internal build infrastructure, so yes, I
> know it's not required.
>
> Admittedly, it's not a Koji system, but I'm also not enabling any
> modules in my build environment right now. I'm rebuilding content from
> Rawhide targeting CentOS Stream 9 to get a list of initial EPEL 9
> packages to build for work, which is how some of my requests to add
> stuff to CRB have come about[1][2][3].

Things have probably improved, but the lesson I learned from EPEL-8
and afterwords was that koji depsolving is weird no matter how set up.
Koji sets up mock environments in a way that will do fine as long as
there are NO modules in the repositories it is looking at. Once a
module, even a non-default module, is there things start to go wonky
because the way that koji depsolves will say that
'foobaz-3.10.1-3+module' is a better solution than
'foobax-3.9.4.<arch>' it will then try to pull that in and boom you
end up with broken builds. You can change the method that koji chooses
packages to be in the buildroot, but the other option ends up trying
to insert things like foobax-3.9.4-i386 into an x86_64  or still does
the modular change but chooses foobar-2 due to some depsolv quirk.

At the moment I think building without grobisplitter will work, but I
am thinking some other solution will need to be made when EL9.x starts
rolling out with modules in it.

>
> This can also be verified when using something like mock with
> mock-core-configs v36 or higher, because I made the necessary
> adjustments to test building on CentOS Stream 9 the same way that
> Fedora Koji and the CentOS CBS would.
>
> [1]: https://gitlab.com/redhat/centos-stream/release-engineering/comps/-/merge_requests/140
> [2]: https://gitlab.com/redhat/centos-stream/release-engineering/comps/-/merge_requests/139
> [3]: https://gitlab.com/redhat/centos-stream/release-engineering/comps/-/merge_requests/135
>




-- 
Stephen J Smoogen.
I've seen things you people wouldn't believe. Flame wars in
sci.astro.orion. I have seen SPAM filters overload because of Godwin's
Law. All those moments will be lost in time... like posts on a BBS...
time to shutdown -h now.
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