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#!/usr/bin/env -S guile --no-auto-compile
!#
(use-modules (ice-9 format)
(ice-9 match)
(ice-9 ports))
(define wm
(cond ((getenv "SWAYSOCK") 'sway)
((getenv "I3SOCK") 'i3)
(else #f)))
(define (call-command/stderr . command)
"Call COMMAND using `system*', but redirect all output to stderr."
(with-output-to-port (current-error-port)
(lambda () (apply system* command))))
(define (wm-msg . command)
(apply call-command/stderr
(match wm
(sway "swaymsg")
(i3 "i3-msg")
(_ (error "No recognised window manager running")))
command))
(match (command-line)
((_ "quit")
(exit 0))
((_ "Reload WM configuration")
(wm-msg "reload"))
((_ "Sleep")
;; Rely on swayidle to lock the screen before going to sleep.
(call-command/stderr "loginctl" "suspend"))
((_ "Log out")
(wm-msg "exit"))
((_ "Shutdown")
(call-command/stderr "sudo" "-n" "/run/current-system/profile/sbin/shutdown"))
((_ "Reboot")
(call-command/stderr "sudo" "-n" "/run/current-system/profile/sbin/reboot"))
(_
(format #t "\0~a\x1f~a~%~{~a\0icon\x1f~a~%~}"
"prompt" "Session"
`(,@(if wm
'("Reload WM configuration" "reload"
"Log out" "system-log-out")
'())
"Sleep" "system-suspend"
"Shutdown" "system-shutdown"
"Reboot" "system-reboot"))))
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