Re: ostree multiarch support

[Colin Walters <walters verbum org>]

On Thu, Sep 29, 2016, at 05:18 PM, Dennis Gilmore wrote:
> The issue I see here is you can not feed the json to a koji parent task that 
> has children tasks  but depending how we work out implementation of how we 
> make ostrees for multiple arches that may or may not be an issue.

Like if the child tasks run on different architectures?

> > The other choice is
> > https://github.com/projectatomic/rpm-ostree/pull/305
> > which was simple to write...but I'm thinking the inheritance is
> > best to try for now.   Thoughts?
> I would prefer having a way to have architecture specific snippets included by 
> the parent based on arch 
>
> if arch == "armhfp"
> include arm-snippet.json
> else if arch in ["x86_64", 'i686", "aarch64"]
> include grub-snippet.json
> endif
>
> or some such setup. even being able to mark some packages as optional would 
> suffice.

Hm, but are we aware of any use cases for architecture dependencies
*other* than packages?  I can't think of one offhand.  Which argues
for https://github.com/projectatomic/rpm-ostree/pull/305
I'd say.

I'd rather not try to do full "semantic templates" like mustache/jinja
(as is used by Lorax) right now at least in the core codebase since I'm
not feeling yet the problem domain warrants it versus the ~10 lines
above.

There's another aspect here which is there's been some discusion
on kickstart files as input, which I just filed here:
https://github.com/projectatomic/rpm-ostree/issues/472
kickstart also has includes but doesn't (AFAIK) have conditional
includes.