Re: modus-themes ELPA and etc/themes

[Eli Zaretskii <eliz@gnu.org>]

> From: Stefan Monnier <monnier@iro.umontreal.ca>
> Cc: emacs-devel@gnu.org
> Date: Sat, 20 Mar 2021 16:39:31 -0400
> 
> How 'bout moving just `modus-themes.el` (it's a fresh new file, so the
> forensics aspect shouldn't matter that much, especially since the real
> Git history is in the upstream repository rather than in emacs.git
> anyway)?  Part of the reason why `modus-themes.el` could be treated
> differently is that it actually contains a fair bit of ELisp code, so it
> would make sense to compile it.

I envision that more themes will go the way of modus-themes (and at
the time you more or less said the same), so I think it would be good
to design and implement support for such themes in package.el now,
that we have a real-life example.  Otherwise I'm afraid we will have
this discussion many times in the future, and we eventually will end
up with some themes under Lisp and others under etc/themes, which I
think is undesirable.

We recently added some simple infrastructure to support themes that,
like modus-themes, want to dynamically load their parts.  How about
introducing special support for those in package.el as well?

> > Why can't we take any of the other ways to fix this?
> 
> Oh, we definitely can, I'm just trying to figure out which solution is best.

I'd like to keep themes in their current location.  Where this
requires additional infrastructure for themes that do something
special, I think we should add such an infrastructure.

Thanks.