[Fontconfig] Next steps for a reproducible Fontconfig?

[Alexander Larsson]

On Thu, Apr 4, 2019 at 1:09 PM Akira TAGOH <akira at tagoh.org> wrote:
>
> On Thu, Apr 4, 2019 at 5:46 PM Alexander Larsson
> <alexander.larsson at gmail.com> wrote:
> > There are still some issues though:
> >  * Only flatpak 1.2.0 and later generates the dir-remapping fontconfig
> > file, so earlier versions of flatpak will regenerate caches for
> > /run/host/fonts.
> >  * On current distros, with the uuid file generated the host fc-cache
> > will only generate the uuid style cache files, and these will not be
> > used by the fontconfig in the sandbox.
> >
> > The first I think is fine, just update your flatpak to the latest
> > stable release and it will be fast.
> >
> > However, the second is a problem. It means that the second we update
> > the flatpak runtime to the latest fontconfig all flatpak apps will get
> > a slow first startup on all current distros.
> >
> > Is it possible that we could make the new fontconfig not generate uuid
> > cache files, but look for them as fallback? I.e. if the (possibly
> > salted) regular path checksum doesn't exist, look for a .uuid file in
> > that dir and use that for lookup?
>
> Yes. done. hope that works well.

Yes, this now seems to work well. I think this is good to go!