Re: A postinst equivalent in Guix?

[Christopher Allan Webber]

John Darrington writes:

> On Wed, Jan 25, 2017 at 02:15:12PM +0100, Ludovic Court??s wrote:
>      Christopher Allan Webber <address@hidden> skribis:
>
>      > Ludovic Court??s writes:
>      >
>      >> Georgi Kirilov <address@hidden> skribis:
>      >>
>      >>> On Sat, Jan 21, 2017 at 04:34:55PM +0100, Ludovic Court??s wrote:
>      >>>
>      >>>>To make things more concrete, we could discuss specific packages you 
> are
>      >>>>interested in and see how we could provide them in Guix{,SD}.
>      >>>
>      >>> The package is the old bsd-games bundle. Some of the games need to
>      >>> write score files under /var/lib/bsdgames/
>      >>> You can find attached my patch so far.
>      >>
>      >> The patch looks good to me!
>      >>
>      >> As for /var/lib/bsdgames, then it???s up to the admin to set the right
>      >> permissions on it.  We can ensure that it exists and has the right
>      >> permissions on GuixSD, but on foreign distros, there???s nothing we 
> can
>      >> do.
>      >>
>      >> We could also modify bsd-games such that it falls back to
>      >> ~/.local/bsdgames when /var/lib/bsdgames isn???t accessible (and it 
> would
>      >> be worth submitting upstream).  ISTR this was discussed for one of the
>      >> games present in Guix.
>      >>
>      >> WDYT?
>      >>
>      >> Ludo???.
>      >
>      > I'm a bit wary about GuixSD packages declaring being able to write to
>      > /var/ anything by default.  What would the permissions be?  I guess if
>      > it were world-writable to all "users" group users it would be okayish.
>      >
>      > Note that KoboDeluxe includes a patch snarfed from Debian that comments
>      > out the ability to save score files for this same reason, and it was
>      > marked in Debian as a security patch IIRC...
>
>      Yeah, I think scores in /var are a remnant of the past.  Unix just lacks
>      a good way to address this use case.
>
>      So it sounds best for games to use a score file under $HOME by default.
>
> I always thought the unix way was rather nice.   The scores file was owned by
> "games" and programs which wanted to write to them were setuid games.
>
> That way everyone on the system shares the same scores file.
>
> J'

It's fun but... does anyone still play games on the same shared machine
anymore and compare score files?

Except for maybe nethack on fencepost ... ;)