172 lines
6.3 KiB
Scheme
172 lines
6.3 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 (canonical-package))
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#:use-module (gnu packages guile)
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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 gexp)
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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 (canonical-package guile-2.0))
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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/fonts/X11/75dpi\"
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ModulePath \"" xf86-video-vesa "/lib/xorg/modules/drivers\"
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ModulePath \"" xf86-video-fbdev "/lib/xorg/modules/drivers\"
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ModulePath \"" xf86-video-cirrus "/lib/xorg/modules/drivers\"
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ModulePath \"" xf86-video-intel "/lib/xorg/modules/drivers\"
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ModulePath \"" xf86-video-mach64 "/lib/xorg/modules/drivers\"
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ModulePath \"" xf86-video-nv "/lib/xorg/modules/drivers\"
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ModulePath \"" xf86-input-keyboard "/lib/xorg/modules/input\"
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ModulePath \"" xf86-input-mouse "/lib/xorg/modules/input\"
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ModulePath \"" xf86-input-synaptics "/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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"))
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(mlet %store-monad ((config (xserver.conf)))
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(define script
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;; Write a small wrapper around the X server.
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#~(begin
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(setenv "XORG_DRI_DRIVER_PATH" (string-append #$mesa "/lib/dri"))
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(setenv "XKB_BINDIR" (string-append #$xkbcomp "/bin"))
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(apply execl (string-append #$xorg-server "/bin/X")
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"-ac" "-logverbose" "-verbose"
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"-xkbdir" (string-append #$xkeyboard-config "/share/X11/xkb")
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"-config" #$config
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"-nolisten" "tcp" "-terminate"
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;; Note: SLiM and other display managers add the
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;; '-auth' flag by themselves.
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(cdr (command-line)))))
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(gexp->script "start-xorg" script)))
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(define* (xinitrc #:key
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(guile (canonical-package guile-2.0))
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(ratpoison ratpoison)
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(windowmaker windowmaker))
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"Return a system-wide xinitrc script that starts the specified X session."
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(define builder
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#~(begin
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(use-modules (ice-9 match))
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;; First, try to run ~/.xsession.
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(let* ((home (getenv "HOME"))
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(file (string-append home "/.xsession")))
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(false-if-exception (execl file file)))
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;; Then try a pre-configured session type.
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(match (command-line)
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((_ "ratpoison")
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(execl (string-append #$ratpoison "/bin/ratpoison")))
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(_
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(execl (string-append #$windowmaker "/bin/wmaker"))))))
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(gexp->script "xinitrc" builder))
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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 starts the X display server with @var{startx}, a command as returned by
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@code{xorg-start-command}.
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When @var{allow-empty-passwords?} is true, allow logins with an empty
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password. When @var{auto-login?} is true, log in automatically as
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@var{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/profile/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.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 '(user-processes host-name udev))
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(start
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#~(lambda ()
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;; A stale lock file can prevent SLiM from starting, so remove it
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;; to be on the safe side.
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(false-if-exception (delete-file "/var/run/slim.lock"))
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(fork+exec-command
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(list (string-append #$slim "/bin/slim") "-nodaemon")
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#:environment-variables
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(list (string-append "SLIM_CFGFILE=" #$slim.cfg)))))
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(stop #~(make-kill-destructor))
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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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