guix/gnu/services/xorg.scm

1269 lines
51 KiB
Scheme
Raw Permalink Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2017 Andy Wingo <wingo@igalia.com>
;;; Copyright © 2013-2017, 2019-2020, 2022 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2015 Sou Bunnbu <iyzsong@gmail.com>
;;; Copyright © 2018, 2019 Timothy Sample <samplet@ngyro.com>
;;; Copyright © 2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
;;; Copyright © 2019 Tim Gesthuizen <tim.gesthuizen@yahoo.de>
;;; Copyright © 2020 shtwzrd <shtwzrd@protonmail.com>
;;; Copyright © 2020 Jakub Kądziołka <kuba@kadziolka.net>
;;; Copyright © 2020 Alex Griffin <a@ajgrf.com>
;;; Copyright © 2021 Brice Waegeneire <brice@waegenei.re>
;;; Copyright © 2021 Oleg Pykhalov <go.wigust@gmail.com>
;;; Copyright © 2021 Josselin Poiret <josselin.poiret@protonmail.ch>
;;; Copyright © 2022 Chris Marusich <cmmarusich@gmail.com>
;;; Copyright © 2022 Maxim Cournoyer <maxim.cournoyer@gmail.com>
;;; Copyright © 2023 muradm <mail@muradm.net>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (gnu services xorg)
#:autoload (gnu services sddm) (sddm-service-type)
#:use-module (gnu artwork)
#:use-module (gnu services)
#:use-module (gnu services configuration)
#:use-module (gnu services shepherd)
#:use-module (gnu system pam)
#:use-module (gnu system setuid)
#:use-module (gnu system keyboard)
#:use-module (gnu services base)
#:use-module (gnu services dbus)
#:use-module (gnu packages base)
#:use-module (gnu packages guile)
#:use-module (gnu packages xorg)
#:use-module (gnu packages fonts)
#:use-module (gnu packages gl)
#:use-module (gnu packages glib)
#:use-module (gnu packages display-managers)
#:use-module (gnu packages freedesktop)
#:use-module (gnu packages gnustep)
#:use-module (gnu packages gnome)
#:use-module (gnu packages admin)
#:use-module (gnu packages bash)
#:use-module (gnu system shadow)
#:use-module (guix build-system glib-or-gtk)
#:use-module (guix build-system trivial)
#:use-module (guix gexp)
#:use-module (guix store)
#:use-module (guix packages)
#:use-module (guix derivations)
#:use-module (guix records)
#:use-module (guix deprecation)
#:use-module (guix utils)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-9)
#:use-module (srfi srfi-26)
#:use-module (ice-9 format)
#:use-module (ice-9 match)
#:export (xorg-configuration
xorg-configuration?
xorg-configuration-modules
xorg-configuration-fonts
xorg-configuration-drivers
xorg-configuration-resolutions
xorg-configuration-extra-config
xorg-configuration-server
xorg-configuration-server-arguments
%default-xorg-modules
%default-xorg-fonts
%default-xorg-server-arguments
xorg-wrapper
xorg-start-command
xinitrc
xorg-server-service-type
%default-slim-theme
%default-slim-theme-name
slim-configuration
slim-configuration?
slim-configuration-slim
slim-configuration-allow-empty-passwords?
slim-configuration-auto-login?
slim-configuration-default-user
slim-configuration-theme
slim-configuration-theme-name
slim-configuration-xauth
slim-configuration-shepherd
slim-configuration-auto-login-session
slim-configuration-xorg
slim-configuration-display
slim-configuration-vt
slim-configuration-sessreg
slim-service-type
screen-locker-configuration
screen-locker-configuration?
screen-locker-configuration-name
screen-locker-configuration-program
screen-locker-configuration-allow-empty-password?
screen-locker-configuration-using-pam?
screen-locker-configuration-using-setuid?
screen-locker-service-type
screen-locker-service ; deprecated
localed-configuration
localed-configuration?
localed-service-type
dconf-keyfile
dconf-profile
dconf-profile-name
dconf-profile-content
dconf-profile-keyfile
dconf-service-type
gdm-configuration
gdm-service-type
handle-xorg-configuration
set-xorg-configuration))
;;; Commentary:
;;;
;;; Services that relate to the X Window System.
;;;
;;; Code:
(define %default-xorg-modules
;; Default list of modules loaded by the server. When multiple drivers
;; match, the first one in the list is loaded.
(list xf86-video-vesa
xf86-video-fbdev
xf86-video-amdgpu
xf86-video-ati
xf86-video-cirrus
xf86-video-intel
xf86-video-mach64
xf86-video-nouveau
xf86-video-nv
xf86-video-sis
;; Libinput is the new thing and is recommended over evdev/synaptics:
;; <http://who-t.blogspot.fr/2015/01/xf86-input-libinput-compatibility-with.html>.
xf86-input-libinput
xf86-input-evdev
xf86-input-keyboard
xf86-input-mouse))
(define %default-xorg-fonts
;; Default list of fonts available to the X server.
(list (file-append font-alias "/share/fonts/X11/75dpi")
(file-append font-alias "/share/fonts/X11/100dpi")
(file-append font-alias "/share/fonts/X11/misc")
(file-append font-alias "/share/fonts/X11/cyrillic")
(file-append font-misc-misc ;default fonts for xterm
"/share/fonts/X11/misc")
(file-append font-adobe75dpi "/share/fonts/X11/75dpi")))
(define %default-xorg-server-arguments
;; Default command-line arguments for X.
'("-nolisten" "tcp"))
;; Configuration of an Xorg server.
(define-record-type* <xorg-configuration>
xorg-configuration make-xorg-configuration
xorg-configuration?
(modules xorg-configuration-modules ;list of file-like
(thunked)
; filter out modules not supported on current system
(default (filter
(lambda (p)
(member (%current-system)
(package-supported-systems p)))
%default-xorg-modules)))
(fonts xorg-configuration-fonts ;list of packges
(default %default-xorg-fonts))
(drivers xorg-configuration-drivers ;list of strings
(default '()))
(resolutions xorg-configuration-resolutions ;list of tuples
(default '()))
(keyboard-layout xorg-configuration-keyboard-layout ;#f | <keyboard-layout>
(default #f))
(extra-config xorg-configuration-extra-config ;list of strings
(default '()))
(server xorg-configuration-server ;file-like
(default xorg-server))
(server-arguments xorg-configuration-server-arguments ;list of strings
(default %default-xorg-server-arguments)))
(define (xorg-configuration->file config)
"Compute an Xorg configuration file corresponding to CONFIG, an
<xorg-configuration> record."
(let ((xorg-server (xorg-configuration-server config)))
(define all-modules
;; 'xorg-server' provides 'fbdevhw.so' etc.
(append (xorg-configuration-modules config)
(list xorg-server)))
(define build
#~(begin
(use-modules (ice-9 match)
(srfi srfi-1)
(srfi srfi-26))
(call-with-output-file #$output
(lambda (port)
(define drivers
'#$(xorg-configuration-drivers config))
(define (device-section driver)
(string-append "
Section \"Device\"
Identifier \"device-" driver "\"
Driver \"" driver "\"
EndSection"))
(define (screen-section driver resolutions)
(string-append "
Section \"Screen\"
Identifier \"screen-" driver "\"
Device \"device-" driver "\"
SubSection \"Display\"
Modes "
(string-join (map (match-lambda
((x y)
(string-append "\"" (number->string x)
"x" (number->string y) "\"")))
resolutions)) "
EndSubSection
EndSection"))
(define (input-class-section layout variant model options)
(string-append "
Section \"InputClass\"
Identifier \"evdev keyboard catchall\"
MatchIsKeyboard \"on\"
Option \"XkbLayout\" " (object->string layout)
(if variant
(string-append " Option \"XkbVariant\" \""
variant "\"")
"")
(if model
(string-append " Option \"XkbModel\" \""
model "\"")
"")
(match options
(()
"")
(_
(string-append " Option \"XkbOptions\" \""
(string-join options ",") "\""))) "
MatchDevicePath \"/dev/input/event*\"
Driver \"evdev\"
EndSection\n"))
(define (expand modules)
;; Append to MODULES the relevant /lib/xorg/modules
;; sub-directories.
(append-map (lambda (module)
(filter-map (lambda (directory)
(let ((full (string-append module
directory)))
(and (file-exists? full)
full)))
'("/lib/xorg/modules/drivers"
"/lib/xorg/modules/input"
"/lib/xorg/modules/multimedia"
"/lib/xorg/modules/extensions")))
modules))
(display "Section \"Files\"\n" port)
(for-each (lambda (font)
(format port " FontPath \"~a\"~%" font))
'#$(xorg-configuration-fonts config))
(for-each (lambda (module)
(format port
" ModulePath \"~a\"~%"
module))
(append (expand '#$all-modules)
;; For fbdevhw.so and so on.
(list #$(file-append xorg-server
"/lib/xorg/modules"))))
(display "EndSection\n" port)
(display "
Section \"ServerFlags\"
Option \"AllowMouseOpenFail\" \"on\"
EndSection\n" port)
(display (string-join (map device-section drivers) "\n")
port)
(newline port)
(display (string-join
(map (cut screen-section <>
'#$(xorg-configuration-resolutions config))
drivers)
"\n")
port)
(newline port)
(let ((layout #$(and=> (xorg-configuration-keyboard-layout config)
keyboard-layout-name))
(variant #$(and=> (xorg-configuration-keyboard-layout config)
keyboard-layout-variant))
(model #$(and=> (xorg-configuration-keyboard-layout config)
keyboard-layout-model))
(options '#$(and=> (xorg-configuration-keyboard-layout config)
keyboard-layout-options)))
(when layout
(display (input-class-section layout variant model options)
port)
(newline port)))
(for-each (lambda (config)
(display config port))
'#$(xorg-configuration-extra-config config))))))
(computed-file "xserver.conf" build)))
(define (xorg-configuration-directory modules)
"Return a directory that contains the @code{.conf} files for X.org that
includes the @code{share/X11/xorg.conf.d} directories of each package listed
in @var{modules}."
(with-imported-modules '((guix build utils))
(computed-file "xorg.conf.d"
#~(begin
(use-modules (guix build utils)
(srfi srfi-1))
(define files
(append-map (lambda (module)
(find-files (string-append
module
"/share/X11/xorg.conf.d")
"\\.conf$"))
(list #$@modules)))
(mkdir #$output)
(for-each (lambda (file)
(symlink file
(string-append #$output "/"
(basename file))))
files)
#t))))
(define (xorg-configuration-server-package-path config input path)
"Lookup the direct @var{input} in the xorg server package of @var{config}
and append @var{path} to it."
(let* ((server (xorg-configuration-server config))
(package (lookup-package-direct-input server input)))
(when package (file-append package path))))
(define (xorg-configuration-dri-driver-path config)
(xorg-configuration-server-package-path config "mesa" "/lib/dri"))
(define (xorg-configuration-xkb-bin-dir config)
(xorg-configuration-server-package-path config "xkbcomp" "/bin"))
(define (xorg-configuration-xkb-dir config)
(xorg-configuration-server-package-path config "xkeyboard-config" "/share/X11/xkb"))
(define* (xorg-wrapper #:optional (config (xorg-configuration)))
"Return a derivation that builds a script to start the X server with the
given @var{config}. The resulting script should be used in place of
@code{/usr/bin/X}."
(define exp
;; Write a small wrapper around the X server.
#~(begin
(setenv "XORG_DRI_DRIVER_PATH"
#$(xorg-configuration-dri-driver-path config))
(setenv "XKB_BINDIR" #$(xorg-configuration-xkb-bin-dir config))
(let ((X (string-append #$(xorg-configuration-server config) "/bin/X")))
(apply execl X X
"-xkbdir" #$(xorg-configuration-xkb-dir config)
"-config" #$(xorg-configuration->file config)
"-configdir" #$(xorg-configuration-directory
(xorg-configuration-modules config))
(cdr (command-line))))))
(program-file "X-wrapper" exp))
(define* (xorg-start-command #:optional (config (xorg-configuration)))
"Return a @code{startx} script in which the modules, fonts, etc. specified
in @var{config}, are available. The result should be used in place of
@code{startx}."
(define X
(xorg-wrapper config))
(define exp
;; Write a small wrapper around the X server.
#~(apply execl #$X #$X ;; Second #$X is for argv[0].
"-logverbose" "-verbose" "-terminate"
#$@(xorg-configuration-server-arguments config)
(cdr (command-line))))
(program-file "startx" exp))
(define* (xinitrc #:key fallback-session)
"Return a system-wide xinitrc script that starts the specified X session,
which should be passed to this script as the first argument. If not, the
@var{fallback-session} will be used or, if @var{fallback-session} is false, a
desktop session from the system or user profile will be used."
(define builder
#~(begin
(use-modules (ice-9 match)
(ice-9 regex)
(ice-9 ftw)
(ice-9 rdelim)
(srfi srfi-1)
(srfi srfi-26))
(define (close-all-fdes)
;; Close all the open file descriptors except 0 to 2.
(let loop ((fd 3))
(when (< fd 4096) ;FIXME: use sysconf + _SC_OPEN_MAX
(false-if-exception (close-fdes fd))
(loop (+ 1 fd)))))
(define (exec-from-login-shell command . args)
;; Run COMMAND from a login shell so that it gets to see the same
;; environment variables that one gets when logging in on a tty, for
;; instance.
(let* ((pw (getpw (getuid)))
(shell (passwd:shell pw)))
;; Close any open file descriptors. This is all the more
;; important that SLiM itself exec's us directly without closing
;; its own file descriptors!
(close-all-fdes)
;; The '--login' option is supported at least by Bash and zsh.
(execl shell shell "--login" "-c"
(string-join (cons command args)))))
(define system-profile
"/run/current-system/profile")
(define user-profile
(and=> (getpw (getuid))
(lambda (pw)
(string-append (passwd:dir pw) "/.guix-profile"))))
(define (xsession-command desktop-file)
;; Read from DESKTOP-FILE its X session command and return it as a
;; list.
(define exec-regexp
(make-regexp "^[[:blank:]]*Exec=(.*)$"))
(call-with-input-file desktop-file
(lambda (port)
(let loop ()
(match (read-line port)
((? eof-object?) #f)
((= (cut regexp-exec exec-regexp <>) result)
(if result
(string-tokenize (match:substring result 1))
(loop))))))))
(define (find-session profile)
;; Return an X session command from PROFILE or #f if none was found.
(let ((directory (string-append profile "/share/xsessions")))
(match (scandir directory
(cut string-suffix? ".desktop" <>))
((or () #f)
#f)
((sessions ...)
(any xsession-command
(map (cut string-append directory "/" <>)
sessions))))))
(let* ((home (getenv "HOME"))
(xsession-file (string-append home "/.xsession"))
(session (match (command-line)
((_)
#$(if fallback-session
#~(list #$fallback-session)
#f))
((_ x ..1)
x))))
(if (file-exists? xsession-file)
;; Run ~/.xsession when it exists.
(apply exec-from-login-shell xsession-file
(or session '()))
;; Otherwise, start the specified session or a fallback.
(apply exec-from-login-shell
(or session
(find-session user-profile)
(find-session system-profile)))))))
(program-file "xinitrc" builder))
(define-syntax handle-xorg-configuration
(syntax-rules ()
"Generate the `compose' and `extend' entries of a login manager
`service-type' to handle specifying the `xorg-configuration' through
a `service-extension', as used by `set-xorg-configuration'."
((_ configuration-record service-type-definition)
(service-type
(inherit service-type-definition)
(compose (lambda (extensions)
(match extensions
(() #f)
((config . _) config))))
(extend (lambda (config xorg-configuration)
(if xorg-configuration
(configuration-record
(inherit config)
(xorg-configuration xorg-configuration))
config)))))))
(define (xorg-server-profile-service config)
;; XXX: profile-service-type only accepts <package> objects.
(list
(package
(name "xorg-wrapper")
(version (package-version xorg-server))
(source (xorg-wrapper config))
(build-system trivial-build-system)
(arguments
'(#:modules ((guix build utils))
#:builder
(begin
(use-modules (guix build utils))
(let* ((source (assoc-ref %build-inputs "source"))
(out (assoc-ref %outputs "out"))
(bin (string-append out "/bin")))
(mkdir-p bin)
(symlink source (string-append bin "/X"))
(symlink source (string-append bin "/Xorg"))
#t))))
(home-page (package-home-page xorg-server))
(synopsis (package-synopsis xorg-server))
(description (package-description xorg-server))
(license (package-license xorg-server)))))
(define xorg-server-service-type
(service-type
(name 'xorg-server)
(extensions
(list (service-extension profile-service-type
xorg-server-profile-service)))
(default-value (xorg-configuration))
(description "Add @command{X} to the system profile, to be used with
@command{sx} or @command{xinit}.")))
;;;
;;; SLiM log-in manager.
;;;
(define %default-slim-theme
;; Theme based on work by Felipe López.
(file-append %artwork-repository "/slim"))
(define %default-slim-theme-name
;; This must be the name of the sub-directory in %DEFAULT-SLIM-THEME that
;; contains the actual theme files.
"1.x")
(define-record-type* <slim-configuration>
slim-configuration make-slim-configuration
slim-configuration?
(slim slim-configuration-slim
(default slim))
(allow-empty-passwords? slim-configuration-allow-empty-passwords?
(default #t))
(gnupg? slim-configuration-gnupg?
(default #f))
(auto-login? slim-configuration-auto-login?
(default #f))
(default-user slim-configuration-default-user
(default ""))
(theme slim-configuration-theme
(default %default-slim-theme))
(theme-name slim-configuration-theme-name
(default %default-slim-theme-name))
(xauth slim-configuration-xauth
(default xauth))
(shepherd slim-configuration-shepherd
(default shepherd))
(auto-login-session slim-configuration-auto-login-session
(default #f))
(xorg-configuration slim-configuration-xorg
(default (xorg-configuration)))
(display slim-configuration-display
(default ":0"))
(vt slim-configuration-vt
(default "vt7"))
(sessreg slim-configuration-sessreg
(default sessreg)))
(define (slim-pam-service config)
"Return a PAM service for @command{slim}."
(list (unix-pam-service
"slim"
#:login-uid? #t
#:allow-empty-passwords?
(slim-configuration-allow-empty-passwords? config)
#:gnupg?
(slim-configuration-gnupg? config))))
(define (slim-shepherd-service config)
(let* ((xinitrc (xinitrc #:fallback-session
(slim-configuration-auto-login-session config)))
(xauth (slim-configuration-xauth config))
(startx (xorg-start-command (slim-configuration-xorg config)))
(display (slim-configuration-display config))
(vt (slim-configuration-vt config))
(shepherd (slim-configuration-shepherd config))
(theme-name (slim-configuration-theme-name config))
(sessreg (slim-configuration-sessreg config))
(lockfile (string-append "/var/run/slim-" vt ".lock")))
(define slim.cfg
(mixed-text-file "slim.cfg" "
default_path /run/current-system/profile/bin
default_xserver " startx "
display_name " display "
xserver_arguments " vt "
xauth_path " xauth "/bin/xauth
authfile /var/run/slim-" vt ".auth
lockfile " lockfile "
logfile /var/log/slim-" vt ".log
# The login command. '%session' is replaced by the chosen session name, one
# of the names specified in the 'sessions' setting: 'wmaker', 'xfce', etc.
login_cmd exec " xinitrc " %session
sessiondir /run/current-system/profile/share/xsessions
session_msg session (F1 to change):
sessionstart_cmd " sessreg "/bin/sessreg -a -l $DISPLAY %user
sessionstop_cmd " sessreg "/bin/sessreg -d -l $DISPLAY %user
halt_cmd " shepherd "/sbin/halt
reboot_cmd " shepherd "/sbin/reboot\n"
(if (slim-configuration-auto-login? config)
(string-append "auto_login yes\ndefault_user "
(slim-configuration-default-user config) "\n")
"")
(if theme-name
(string-append "current_theme " theme-name "\n")
"")))
(define theme
(slim-configuration-theme config))
(list (shepherd-service
(documentation "Xorg display server")
(provision (append
;; For compatibility, also provide 'xorg-server'.
(if (string=? vt "vt7")
'(xorg-server)
'())
(list (symbol-append 'xorg-server-
(string->symbol vt)))))
(requirement '(pam user-processes host-name udev))
(start
#~(lambda ()
;; A stale lock file can prevent SLiM from starting, so remove it to
;; be on the safe side.
(false-if-exception (delete-file lockfile))
(fork+exec-command
(list (string-append #$(slim-configuration-slim config)
"/bin/slim")
"-nodaemon")
#:environment-variables
(list (string-append "SLIM_CFGFILE=" #$slim.cfg)
#$@(if theme
(list #~(string-append "SLIM_THEMESDIR=" #$theme))
#~())))))
(stop #~(make-kill-destructor))
(respawn? #t)))))
(define slim-service-type
(handle-xorg-configuration slim-configuration
(service-type (name 'slim)
(extensions
(list (service-extension shepherd-root-service-type
slim-shepherd-service)
(service-extension pam-root-service-type
slim-pam-service)))
(default-value (slim-configuration))
(description
"Run the SLiM graphical login manager for X11."))))
;;;
;;; Screen lockers & co.
;;;
(define-configuration/no-serialization screen-locker-configuration
(name
string
"Name of the screen locker.")
(program
file-like
"Path to the executable for the screen locker as a G-Expression.")
(allow-empty-password?
(boolean #f)
"Whether to allow empty passwords.")
(using-pam?
(boolean #t)
"Whether to setup PAM entry.")
(using-setuid?
(boolean #t)
"Whether to setup program as setuid binary."))
(define (screen-locker-pam-services config)
(match-record config <screen-locker-configuration>
(name allow-empty-password? using-pam?)
(if using-pam?
(list (unix-pam-service name
#:allow-empty-passwords?
allow-empty-password?))
'())))
(define (screen-locker-setuid-programs config)
(match-record config <screen-locker-configuration>
(name program using-setuid?)
(if using-setuid?
(list (file-like->setuid-program program))
'())))
(define screen-locker-service-type
(service-type (name 'screen-locker)
(extensions
(list (service-extension pam-root-service-type
screen-locker-pam-services)
(service-extension setuid-program-service-type
screen-locker-setuid-programs)))
(description
"Allow the given program to be used as a screen locker for
the graphical server by making it setuid-root, so it can authenticate users,
and by creating a PAM service for it.")))
(define (screen-locker-generate-doc)
(configuration->documentation 'screen-locker-configuration))
(define-deprecated (screen-locker-service package
#:optional
(program (package-name package))
#:key allow-empty-passwords?)
screen-locker-service-type
"Add @var{package}, a package for a screen locker or screen saver whose
command is @var{program}, to the set of setuid programs and add a PAM entry
for it. For example:
@lisp
(screen-locker-service xlockmore \"xlock\")
@end lisp
makes the good ol' XlockMore usable."
(service screen-locker-service-type
(screen-locker-configuration
(name program)
(program (file-append package "/bin/" program))
(allow-empty-password? allow-empty-passwords?))))
;;;
;;; Locale service.
;;;
(define-record-type* <localed-configuration>
localed-configuration make-localed-configuration
localed-configuration?
(localed localed-configuration-localed
(default localed))
(keyboard-layout localed-configuration-keyboard-layout
(default #f)))
(define (localed-dbus-service config)
"Return the 'localed' D-Bus service for @var{config}, a
@code{<localed-configuration>} record."
(define keyboard-layout
(localed-configuration-keyboard-layout config))
;; The primary purpose of 'localed' is to tell GDM what the "current" Xorg
;; keyboard layout is. If 'localed' is missing, or if it's unable to
;; determine the current XKB layout, then GDM forcefully installs its
;; default XKB config (US English). Here we communicate the configured
;; layout through environment variables.
(if keyboard-layout
(let* ((layout (keyboard-layout-name keyboard-layout))
(variant (keyboard-layout-variant keyboard-layout))
(model (keyboard-layout-model keyboard-layout))
(options (keyboard-layout-options keyboard-layout)))
(list (wrapped-dbus-service
(localed-configuration-localed config)
"libexec/localed/localed"
`(("GUIX_XKB_LAYOUT" ,layout)
,@(if variant
`(("GUIX_XKB_VARIANT" ,variant))
'())
,@(if model
`(("GUIX_XKB_MODEL" ,model))
'())
,@(if (null? options)
'()
`(("GUIX_XKB_OPTIONS"
,(string-join options ","))))))))
'()))
(define localed-service-type
(let ((package (lambda (config)
;; Don't bother if the user didn't specify any keyboard
;; layout.
(if (localed-configuration-keyboard-layout config)
(list (localed-configuration-localed config))
'()))))
(service-type (name 'localed)
(extensions
(list (service-extension dbus-root-service-type
localed-dbus-service)
(service-extension udev-service-type package)
(service-extension polkit-service-type package)
;; Add 'localectl' to the profile.
(service-extension profile-service-type package)))
;; This service can be extended, typically by the X login
;; manager, to communicate the chosen Xorg keyboard layout.
(compose (lambda (extensions)
(find keyboard-layout? extensions)))
(extend (lambda (config keyboard-layout)
(localed-configuration
(inherit config)
(keyboard-layout keyboard-layout))))
(description
"Run the locale daemon, @command{localed}, which can be used
to control the system locale and keyboard mapping from user programs such as
the GNOME desktop environment.")
(default-value (localed-configuration)))))
;;;
;;; Dconf.
;;;
(define-maybe text-config)
(define-configuration/no-serialization dconf-keyfile
(name string
"The file name of the associated keyfile, e.g. \"00-login-screen\".")
(content text-config "The content of the associated keyfile."))
(define-configuration/no-serialization dconf-profile
(name string "The file name of the dconf system profile, which should match
the name of a user for which the profile is to be used with. To have the
profile used, the environment variable \"DCONF_PROFILE\" should be set to the
profile file, e.g.:
@example
export DCONF_PROFILE=/etc/dconf/profile/gdm
@end example")
(content maybe-text-config "The content of the Dconf profile. Unless
provided, it defaults to include the user database (\"user-db:NAME\") as well
as the system database (\"system-db:NAME\"), which corresponds to the
generated database, @file{/etc/dconf/db/NAME}.")
(keyfile dconf-keyfile "The keyfile associated with the profile"))
(define dconf-profiles?
(list-of dconf-profile?))
(define-configuration/no-serialization dconf-configuration
(profiles dconf-profiles "The list of <dconf-profile> objects to populate."))
(define (dconf-profile->profile-file profile)
"Given PROFILE, a <dconf-profile> object, return a dconf profile file."
(let ((name (dconf-profile-name profile))
(content (dconf-profile-content profile)))
(apply mixed-text-file
name
(if (maybe-value-set? content)
(interpose content "\n" 'suffix)
(interpose (list (string-append "user-db:" name)
(string-append "system-db:" name))
"\n" 'suffix)))))
(define (dconf-profile->db-keyfile profile)
"Given PROFILE, a <dconf-profile> object, return a dconf profile file."
(let ((keyfile (dconf-profile-keyfile profile)))
(apply mixed-text-file (dconf-keyfile-name keyfile)
(interpose (dconf-keyfile-content keyfile) "\n" 'suffix))))
(define (dconf-profile->db-keyfile-dir profile)
"Wrap the keyfile in a directory, to satisfy 'dconf compile'."
(let ((name (dconf-profile-name profile))
(keyfile-name (dconf-keyfile-name (dconf-profile-keyfile profile))))
(computed-file name
#~(begin
(mkdir #$output)
(symlink #$(dconf-profile->db-keyfile profile)
(string-append #$output "/" #$keyfile-name))))))
(define (dconf-profile->db profile)
"Compile the a <dconf-profile> object into a GVariant Database file."
(let ((name (dconf-profile-name profile)))
(computed-file
name
(with-imported-modules '((guix build utils))
#~(begin
(use-modules (guix build utils))
(setenv "DCONF_PROFILE" #$(dconf-profile->profile-file profile))
(invoke #$(file-append dconf "/bin/dconf") "compile"
#$output #$(dconf-profile->db-keyfile-dir profile)))))))
(define (dconf-profile->files profile)
"Given PROFILE, a <dconf-profile> object, return a dconf directory
containing the associated profile, keyfile and database files to be assembled
under /etc."
(let ((name (dconf-profile-name profile))
(keyfile-name (dconf-keyfile-name (dconf-profile-keyfile profile))))
(list (list (string-append "dconf/profile/" name)
(dconf-profile->profile-file profile))
(list (string-append "dconf/db/" name ".d/" keyfile-name)
(dconf-profile->db-keyfile profile))
(list (string-append "dconf/db/" name)
(dconf-profile->db profile)))))
(define dconf-service-type
(service-type
(name 'dconf-profile)
(extensions
(list (service-extension etc-service-type
(lambda (dconf-profiles)
(append-map dconf-profile->files
dconf-profiles)))))
(compose concatenate)
(extend append)
(default-value '())
(description "Extend the @code{etc-service-type} to populate the file
hierarchy under @file{/etc/dconf} with the <dconf-profile> objects provided as
argument.")))
;;;
;;; GNOME Desktop Manager.
;;;
(define %gdm-accounts
(list (user-group (name "gdm") (system? #t))
(user-account
(name "gdm")
(group "gdm")
(supplementary-groups '("video"))
(system? #t)
(comment "GNOME Display Manager user")
(home-directory "/var/lib/gdm")
(shell (file-append shadow "/sbin/nologin")))))
(define dbus-daemon-wrapper
(program-file
"gdm-dbus-wrapper"
#~(begin
(use-modules (srfi srfi-26))
(define system-profile
"/run/current-system/profile")
(define user-profile
(and=> (getpw (getuid))
(lambda (pw)
(string-append (passwd:dir pw) "/.guix-profile"))))
(define home-profile
(and=> (getpw (getuid))
(lambda (pw)
(string-append (passwd:dir pw) "/.guix-home/profile"))))
;; If we are able to find the user's profile, we can add it to
;; the search paths set below. We need to do this so that D-Bus
;; can start services installed by the user. This allows
;; applications that require session D-Bus services (e.g,
;; 'evolution') to work even if those services are only available
;; in the user's profile. See <https://bugs.gnu.org/35267>.
(define profiles
(append (if home-profile
(list home-profile)
'())
(if user-profile
(list user-profile)
'())
(list system-profile)))
(setenv "XDG_CONFIG_DIRS"
(string-join (map (cut string-append <> "/etc/xdg") profiles)
":"))
(setenv "XDG_DATA_DIRS"
(string-join (map (cut string-append <> "/share") profiles)
":"))
(apply execl (string-append #$dbus "/bin/dbus-daemon")
(program-arguments)))))
;; Wrapper script for Wayland sessions, similar to Xsession.
;;
;; See `xinitrc`. By default, it launches the specified session through a
;; login shell. With the default Guix configuration, this should source
;; /etc/profile, setting up the Guix profile environment variables. However,
;; gdm launches its own graphical session through the same method, so we need
;; to ignore this case, since `gdm` doesn't have a login shell.
(define gdm-wayland-session-wrapper
(program-file
"gdm-wayland-session-wrapper"
#~((let* ((user (getpw (getuid)))
(name (passwd:name user))
(shell (passwd:shell user))
(args (cdr (command-line))))
(if (string=? name "gdm")
(apply execl (cons (car args) args))
(execl shell shell "--login" "-c" (string-join args)))))))
(define-record-type* <gdm-configuration>
gdm-configuration make-gdm-configuration
gdm-configuration?
(gdm gdm-configuration-gdm (default gdm))
(allow-empty-passwords? gdm-configuration-allow-empty-passwords? (default #t))
(auto-login? gdm-configuration-auto-login? (default #f))
(auto-suspend? gdm-configuration-auto-suspend? (default #t))
(dbus-daemon gdm-configuration-dbus-daemon (default dbus-daemon-wrapper))
(debug? gdm-configuration-debug? (default #f))
(default-user gdm-configuration-default-user (default #f))
(gnome-shell-assets gdm-configuration-gnome-shell-assets
(default (list adwaita-icon-theme font-abattis-cantarell)))
(xorg-configuration gdm-configuration-xorg
(default (xorg-configuration)))
(x-session gdm-configuration-x-session
(default (xinitrc)))
(xdmcp? gdm-configuration-xdmcp?
(default #f))
(wayland? gdm-configuration-wayland? (default #f))
(wayland-session gdm-configuration-wayland-session
(default gdm-wayland-session-wrapper)))
(define (gdm-dconf-profiles config)
(if (gdm-configuration-auto-suspend? config)
'()
;; This custom gconf profile works around a lack of configuration option
;; to disable auto-suspend when no users are physically logged in (see:
;; https://gitlab.gnome.org/GNOME/gnome-control-center/-/issues/22).
(list (dconf-profile
(name "gdm")
(content (list #~(begin
(use-modules (ice-9 textual-ports))
(string-trim
(call-with-input-file
#$(file-append gdm "/share/dconf/profile/gdm")
get-string-all)))
"system-db:gdm"))
(keyfile (dconf-keyfile
(name "00-disable-suspend")
(content
(list "[org/gnome/settings-daemon/plugins/power]"
"sleep-inactive-ac-type='nothing'"
"sleep-inactive-battery-type='nothing'"
"sleep-inactive-ac-timeout=0"
"sleep-inactive-battery-timeout=0"))))))))
(define (gdm-configuration-file config)
(mixed-text-file "gdm-custom.conf"
"[daemon]\n"
"#User=gdm\n"
"#Group=gdm\n"
(if (gdm-configuration-auto-login? config)
(string-append
"AutomaticLoginEnable=true\n"
"AutomaticLogin="
(or (gdm-configuration-default-user config)
(error "missing default user for auto-login"))
"\n")
(string-append
"AutomaticLoginEnable=false\n"
"#AutomaticLogin=\n"))
"#TimedLoginEnable=false\n"
"#TimedLogin=\n"
"#TimedLoginDelay=0\n"
;; Disable initial system setup inside GDM.
;; Whatever settings are set there should already be
;; taken care of through `guix system'.
;; See also
;; <https://debbugs.gnu.org/cgi/bugreport.cgi?bug=39281>.
"InitialSetupEnable=false\n"
(format #f "WaylandEnable=~:[false~;true~]~%"
(gdm-configuration-wayland? config))
"\n"
"[debug]\n"
(format #f "Enable=~:[false~;true~]~%"
(gdm-configuration-debug? config))
"\n"
"[security]\n"
"#DisallowTCP=true\n"
"#AllowRemoteAutoLogin=false\n"
"\n"
"[xdmcp]\n"
(format #f "Enable=~:[false~;true~]~%"
(gdm-configuration-xdmcp? config))))
(define (gdm-pam-service config)
"Return a PAM service for @command{gdm}."
(list
(pam-service
(inherit (unix-pam-service "gdm-autologin"
#:login-uid? #t))
(auth (list (pam-entry
(control "optional")
(module (file-append (gdm-configuration-gdm config)
"/lib/security/pam_gdm.so")))
(pam-entry
(control "sufficient")
(module "pam_permit.so")))))
(pam-service
(inherit (unix-pam-service "gdm-launch-environment"))
(auth (list (pam-entry
(control "required")
(module "pam_permit.so")))))
(unix-pam-service "gdm-password"
#:login-uid? #t
#:allow-empty-passwords?
(gdm-configuration-allow-empty-passwords? config))))
(define (gdm-shepherd-service config)
(define config-file
(gdm-configuration-file config))
(list (shepherd-service
(documentation "Xorg display server (GDM)")
(provision '(xorg-server))
(requirement '(dbus-system pam user-processes host-name udev elogind))
(start #~(lambda ()
(fork+exec-command
(list #$(file-append (gdm-configuration-gdm config)
"/bin/gdm"))
#:environment-variables
(list #$@(if (gdm-configuration-auto-suspend? config)
#~()
#~("DCONF_PROFILE=/etc/dconf/profile/gdm"))
(string-append "GDM_CUSTOM_CONF=" #$config-file)
(string-append
"GDM_DBUS_DAEMON="
#$(gdm-configuration-dbus-daemon config))
(string-append
"GDM_X_SERVER="
#$(xorg-wrapper
(gdm-configuration-xorg config)))
(string-append
"GDM_X_SESSION="
#$(gdm-configuration-x-session config))
(string-append
"XDG_DATA_DIRS="
((lambda (ls) (string-join ls ":"))
(map (lambda (path)
(string-append path "/share"))
;; XXX: Remove gnome-shell below when GDM
;; can depend on GNOME Shell directly.
(cons #$gnome-shell
'#$(gdm-configuration-gnome-shell-assets
config)))))
;; Add XCURSOR_PATH so that mutter can find its
;; cursors. gdm doesn't login so doesn't source
;; the corresponding line in /etc/profile.
"XCURSOR_PATH=/run/current-system/profile/share/icons"
(string-append
"GDK_PIXBUF_MODULE_FILE="
#$gnome-shell "/" #$%gdk-pixbuf-loaders-cache-file)
(string-append
"GDM_WAYLAND_SESSION="
#$(gdm-configuration-wayland-session config))))))
(stop #~(make-kill-destructor))
(actions (list (shepherd-configuration-action config-file)))
(respawn? #t))))
(define gdm-polkit-rules
(lambda (config)
(if (gdm-configuration-xdmcp? config)
;; Allow remote (XDMCP) users to use colord; otherwise an
;; authentication dialog would appear on the GDM screen (see the
;; upstream bug:
;; https://gitlab.gnome.org/GNOME/gnome-settings-daemon/-/issues/273).
(list (computed-file
"02-allow-colord.rules"
(with-imported-modules '((guix build utils))
#~(begin
(use-modules (guix build utils))
(let* ((rules.d
(string-append #$output
"/share/polkit-1"
"/rules.d"))
(allow-colord.rules (string-append
rules.d
"/02-allow-colord.rules")))
(mkdir-p rules.d)
(call-with-output-file allow-colord.rules
(lambda (port)
;; This workaround enables any local or remote in
;; the "users" group to use colord (see:
;; https://c-nergy.be/blog/?p=12073).
(format port "\
polkit.addRule(function(action, subject) {
if (action.id.match(\"org.freedesktop.color-manager\")) {
polkit.log(\"POLKIT DEBUG returning YES for action: \" + action);
return polkit.Result.YES;
}
});~%"))))))))
'())))
(define gdm-service-type
(handle-xorg-configuration gdm-configuration
(service-type (name 'gdm)
(extensions
(list (service-extension shepherd-root-service-type
gdm-shepherd-service)
(service-extension account-service-type
(const %gdm-accounts))
(service-extension dconf-service-type
gdm-dconf-profiles)
(service-extension pam-root-service-type
gdm-pam-service)
(service-extension polkit-service-type
gdm-polkit-rules)
(service-extension profile-service-type
gdm-configuration-gnome-shell-assets)
(service-extension dbus-root-service-type
(compose list
gdm-configuration-gdm))
(service-extension localed-service-type
(compose
xorg-configuration-keyboard-layout
gdm-configuration-xorg))))
(default-value (gdm-configuration))
(description
"Run the GNOME Desktop Manager (GDM), a program that allows
you to log in in a graphical session, whether or not you use GNOME."))))
;; Since GDM depends on Rust (gdm -> gnome-shell -> gjs -> mozjs -> rust)
;; and Rust is currently unavailable on non-x86_64 platforms, default to
;; SDDM there (FIXME).
(define* (set-xorg-configuration config
#:optional
(login-manager-service-type
(if (target-x86-64?)
gdm-service-type
sddm-service-type)))
"Tell the log-in manager (of type @var{login-manager-service-type}) to use
@var{config}, an <xorg-configuration> record."
(simple-service 'set-xorg-configuration
login-manager-service-type
config))
;;; xorg.scm ends here