Re: XWayland, /tmp/.X11-unix

[Thorsten Wilms]

On 22.03.2018 14:04, Thorsten Wilms wrote:
> On 22.03.2018 00:00, Ricardo Wurmus wrote:
> > Thorsten Wilms <address@hidden> writes:
> >
> > > Initially I thought creation of /tmp/.X11-unix should be tied to the
> > > xorg-server-xwayland package, but since it is more generic: which
> > > component should create that dir on Guix SD (based on what)?
> >
> > It is needed at run-time (because packages cannot create files outside
> > of their store prefix at build time), so it should be created by a
> > system service.  A service is not the same as a shepherd service; we
> > also have activation services that run once and only create a file or a
> > directory.

Revisiting, this wasn't too hard, actually:

Using (guix gexp) implied:

; Create /tmp/.X11-unix and make it writeable to, as required by 
weston-launch with XWayland enabled:
(define mkdir-x11-service
  (simple-service 'mkdir-x11
                  activation-service-type
                  #~(begin (let ((p "/tmp/.X11-unix"))
                              (mkdir-p p)
                              (chmod p #o777)))))

Or perhaps rather:

(define mkdir-x11-service
  (simple-service 'mkdir-x11
                  activation-service-type
                  #~(begin (use-modules (guix build utils))
                           (let ((p "/tmp/.X11-unix"))
                              (mkdir-p p)
                              (chmod p #o777)))))


I can't find anything that suggests a way to automatically add such a 
service to the operating system, if xorg-server-xwayland (or anything 
else that would use that dir) is installed.


--
Thorsten Wilms

thorwil's design for free software:
http://thorwil.wordpress.com/