Ludovic Courtès schreef op di 15-06-2021 om 10:13 [+0200]:
> +(define %precious-variables
> +  ;; Environment variables in the default 'load-profile' white list.
> +  '("HOME" "USER" "LOGNAME" "DISPLAY" "TERM" "TZ" "PAGER"))
[...]
> -;; Protect some env vars from purification.  Borrowed from nix-shell.
> -(define %precious-variables
> -  '("HOME" "USER" "LOGNAME" "DISPLAY" "TERM" "TZ" "PAGER"))

This is really a separate issue, but I don't understand why "XAUTHORITY"
isn't in the list. Without preserving XAUTHORITY, the following won't work
(at least on my desktop environment):

  guix environment --pure --ad-hoc atril -- atril stuff.pdf
  # No protocol specified
  # Cannot parse arguments: Cannot open display: 

But the following does start atril:
  guix environment --preserve=XAUTHORITY --pure --ad-hoc atril -- atril stuff.pdf
  # A window titled ‘Atril Document Viewer’

Could "XAUTHORITY" be added to the list?
Preserving "DISPLAY" but not "XAUTHORITY" seems rather useless to me,
at least on my desktop environment.

Greetings,
Maxime