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9e4eddb4fc
* gnu/services/xorg.scm (xinitrc): New procedure. (slim-service)[slim.cfg]: Use it as the 'login_cmd'.
219 lines
8 KiB
Scheme
219 lines
8 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2013, 2014 Ludovic Courtès <ludo@gnu.org>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (gnu services xorg)
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#:use-module (gnu services)
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#:use-module (gnu system linux) ; 'pam-service'
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#:use-module ((gnu packages base) #:select (guile-final))
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#:use-module (gnu packages xorg)
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#:use-module (gnu packages gl)
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#:use-module (gnu packages slim)
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#:use-module (gnu packages ratpoison)
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#:use-module (gnu packages gnustep)
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#:use-module (gnu packages admin)
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#:use-module (gnu packages bash)
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#:use-module (guix monads)
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#:use-module (guix derivations)
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#:export (xorg-start-command
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slim-service))
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;;; Commentary:
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;;;
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;;; Services that relate to the X Window System.
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;;;
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;;; Code:
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(define* (xorg-start-command #:key
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(guile guile-final)
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(xorg-server xorg-server))
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"Return a derivation that builds a GUILE script to start the X server from
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XORG-SERVER. Usually the X server is started by a login manager."
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(define (xserver.conf)
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(text-file* "xserver.conf" "
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Section \"Files\"
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FontPath \"" font-adobe75dpi "/share/font/X11/75dpi\"
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ModulePath \"" xf86-video-vesa "/lib/xorg/modules/drivers\"
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ModulePath \"" xf86-input-mouse "/lib/xorg/modules/input\"
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ModulePath \"" xf86-input-keyboard "/lib/xorg/modules/input\"
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ModulePath \"" xorg-server "/lib/xorg/modules\"
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ModulePath \"" xorg-server "/lib/xorg/modules/extensions\"
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ModulePath \"" xorg-server "/lib/xorg/modules/multimedia\"
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EndSection
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Section \"ServerFlags\"
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Option \"AllowMouseOpenFail\" \"on""
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EndSection
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Section \"Monitor\"
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Identifier \"Monitor[0]\"
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EndSection
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Section \"InputClass\"
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Identifier \"Generic keyboard\"
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MatchIsKeyboard \"on\"
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Option \"XkbRules\" \"base\"
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Option \"XkbModel\" \"pc104\"
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EndSection
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Section \"ServerLayout\"
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Identifier \"Layout\"
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Screen \"Screen-vesa\"
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EndSection
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Section \"Device\"
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Identifier \"Device-vesa\"
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Driver \"vesa\"
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EndSection
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Section \"Screen\"
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Identifier \"Screen-vesa\"
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Device \"Device-vesa\"
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EndSection"))
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(mlet %store-monad ((guile-bin (package-file guile "bin/guile"))
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(xorg-bin (package-file xorg-server "bin/X"))
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(dri (package-file mesa "lib/dri"))
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(xkbcomp-bin (package-file xkbcomp "bin"))
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(xkb-dir (package-file xkeyboard-config
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"share/X11/xkb"))
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(config (xserver.conf)))
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(define builder
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;; Write a small wrapper around the X server.
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`(let ((out (assoc-ref %outputs "out")))
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(call-with-output-file out
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(lambda (port)
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(format port "#!~a --no-auto-compile~%!#~%" ,guile-bin)
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(write '(begin
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(setenv "XORG_DRI_DRIVER_PATH" ,dri)
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(setenv "XKB_BINDIR" ,xkbcomp-bin)
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(apply execl
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,xorg-bin "-ac" "-logverbose" "-verbose"
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"-xkbdir" ,xkb-dir
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"-config" ,(derivation->output-path config)
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"-nolisten" "tcp" "-terminate"
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;; Note: SLiM and other display managers add the
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;; '-auth' flag by themselves.
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(cdr (command-line))))
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port)))
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(chmod out #o555)
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#t))
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(mlet %store-monad ((inputs (lower-inputs
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`(("xorg" ,xorg-server)
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("xkbcomp" ,xkbcomp)
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("xkeyboard-config" ,xkeyboard-config)
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("mesa" ,mesa)
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("guile" ,guile)
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("xorg.conf" ,config)))))
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(derivation-expression "start-xorg" builder
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#:inputs inputs))))
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(define* (xinitrc #:key
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(guile guile-final)
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(ratpoison ratpoison)
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(windowmaker windowmaker))
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"Return a system-wide xinitrc script that starts the specified X session."
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(mlet %store-monad ((guile-bin (package-file guile "bin/guile"))
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(ratpoison-bin (package-file ratpoison "bin/ratpoison"))
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(wmaker-bin (package-file windowmaker "bin/wmaker"))
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(inputs (lower-inputs
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`(("raptoison" ,ratpoison)
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("wmaker" ,windowmaker)))))
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(define builder
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`(let ((out (assoc-ref %outputs "out")))
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(call-with-output-file out
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(lambda (port)
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(format port "#!~a --no-auto-compile~%!#~%" ,guile-bin)
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(write '(begin
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(use-modules (ice-9 match))
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;; TODO: Check for ~/.xsession.
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(match (command-line)
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((_ "ratpoison")
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(execl ,ratpoison-bin))
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(_
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(execl ,wmaker-bin))))
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port)))
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(chmod out #o555)
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#t))
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(derivation-expression "xinitrc" builder #:inputs inputs)))
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(define* (slim-service #:key (slim slim)
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(allow-empty-passwords? #t) auto-login?
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(default-user "")
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(xauth xauth) (dmd dmd) (bash bash)
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startx)
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"Return a service that spawns the SLiM graphical login manager, which in
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turn start the X display server with STARTX, a command as returned by
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'xorg-start-command'.
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When ALLOW-EMPTY-PASSWORDS? is true, allow logins with an empty password.
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When AUTO-LOGIN? is true, log in automatically as DEFAULT-USER."
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(define (slim.cfg)
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(mlet %store-monad ((startx (or startx (xorg-start-command)))
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(xinitrc (xinitrc)))
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(text-file* "slim.cfg" "
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default_path /run/current-system/bin
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default_xserver " startx "
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xserver_arguments :0 vt7
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xauth_path " xauth "/bin/xauth
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authfile /var/run/slim.auth
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# The login command. '%session' is replaced by the chosen session name, one
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# of the names specified in the 'sessions' setting: 'wmaker', 'xfce', etc.
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login_cmd exec " xinitrc "%session
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sessions wmaker,ratpoison
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halt_cmd " dmd "/sbin/halt
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reboot_cmd " dmd "/sbin/reboot
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" (if auto-login?
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(string-append "auto_login yes\ndefault_user " default-user)
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""))))
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(mlet %store-monad ((slim-bin (package-file slim "bin/slim"))
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(bash-bin (package-file bash "bin/bash"))
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(slim.cfg (slim.cfg)))
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(return
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(service
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(documentation "Xorg display server")
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(provision '(xorg-server))
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(requirement '(host-name))
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(start
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;; XXX: Work around the inability to specify env. vars. directly.
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`(make-forkexec-constructor
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,bash-bin "-c"
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,(string-append "SLIM_CFGFILE=" (derivation->output-path slim.cfg)
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" " slim-bin
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" -nodaemon")))
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(stop `(make-kill-destructor))
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(inputs `(("slim" ,slim)
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("slim.cfg" ,slim.cfg)
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("bash" ,bash)))
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(respawn? #t)
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(pam-services
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;; Tell PAM about 'slim'.
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(list (unix-pam-service
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"slim"
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#:allow-empty-passwords? allow-empty-passwords?)))))))
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;;; xorg.scm ends here
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