fe1a39d319
* gnu/services/colord.scm, gnu/services/dbus.scm, gnu/services/upower.scm: Remove. * gnu/services/desktop.scm: New file, with contents taken from the above files. * gnu-system.am (GNU_SYSTEM_MODULES): Adjust accordingly. * doc/guix.texi (Desktop Services): New section. (Various Services): Move colord-service and upower-service from here to "Desktop Services".
270 lines
11 KiB
Scheme
270 lines
11 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
|
||
;;; Copyright © 2014, 2015 Ludovic Courtès <ludo@gnu.org>
|
||
;;; Copyright © 2015 Andy Wingo <wingo@igalia.com>
|
||
;;;
|
||
;;; 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 desktop)
|
||
#:use-module (gnu services)
|
||
#:use-module (gnu system shadow)
|
||
#:use-module (gnu packages glib)
|
||
#:use-module (gnu packages admin)
|
||
#:use-module (gnu packages gnome)
|
||
#:use-module (guix monads)
|
||
#:use-module (guix store)
|
||
#:use-module (guix gexp)
|
||
#:use-module (ice-9 match)
|
||
#:export (dbus-service
|
||
upower-service
|
||
colord-service))
|
||
|
||
;;; Commentary:
|
||
;;;
|
||
;;; This module contains service definitions for a "desktop" environment.
|
||
;;;
|
||
;;; Code:
|
||
|
||
|
||
;;;
|
||
;;; D-Bus.
|
||
;;;
|
||
|
||
(define (dbus-configuration-directory dbus services)
|
||
"Return a configuration directory for @var{dbus} that includes the
|
||
@code{etc/dbus-1/system.d} directories of each package listed in
|
||
@var{services}."
|
||
(define build
|
||
#~(begin
|
||
(use-modules (sxml simple)
|
||
(srfi srfi-1))
|
||
|
||
(define (services->sxml services)
|
||
;; Return the SXML 'includedir' clauses for DIRS.
|
||
`(busconfig
|
||
,@(append-map (lambda (dir)
|
||
`((includedir
|
||
,(string-append dir "/etc/dbus-1/system.d"))
|
||
(servicedir ;for '.service' files
|
||
,(string-append dir "/share/dbus-1/services"))))
|
||
services)))
|
||
|
||
(mkdir #$output)
|
||
(copy-file (string-append #$dbus "/etc/dbus-1/system.conf")
|
||
(string-append #$output "/system.conf"))
|
||
|
||
;; The default 'system.conf' has an <includedir> clause for
|
||
;; 'system.d', so create it.
|
||
(mkdir (string-append #$output "/system.d"))
|
||
|
||
;; 'system-local.conf' is automatically included by the default
|
||
;; 'system.conf', so this is where we stuff our own things.
|
||
(call-with-output-file (string-append #$output "/system-local.conf")
|
||
(lambda (port)
|
||
(sxml->xml (services->sxml (list #$@services))
|
||
port)))))
|
||
|
||
(gexp->derivation "dbus-configuration" build))
|
||
|
||
(define* (dbus-service services #:key (dbus dbus))
|
||
"Return a service that runs the \"system bus\", using @var{dbus}, with
|
||
support for @var{services}.
|
||
|
||
@uref{http://dbus.freedesktop.org/, D-Bus} is an inter-process communication
|
||
facility. Its system bus is used to allow system services to communicate and
|
||
be notified of system-wide events.
|
||
|
||
@var{services} must be a list of packages that provide an
|
||
@file{etc/dbus-1/system.d} directory containing additional D-Bus configuration
|
||
and policy files. For example, to allow avahi-daemon to use the system bus,
|
||
@var{services} must be equal to @code{(list avahi)}."
|
||
(mlet %store-monad ((conf (dbus-configuration-directory dbus services)))
|
||
(return
|
||
(service
|
||
(documentation "Run the D-Bus system daemon.")
|
||
(provision '(dbus-system))
|
||
(requirement '(user-processes))
|
||
(start #~(make-forkexec-constructor
|
||
(list (string-append #$dbus "/bin/dbus-daemon")
|
||
"--nofork"
|
||
(string-append "--config-file=" #$conf "/system.conf"))))
|
||
(stop #~(make-kill-destructor))
|
||
(user-groups (list (user-group
|
||
(name "messagebus")
|
||
(system? #t))))
|
||
(user-accounts (list (user-account
|
||
(name "messagebus")
|
||
(group "messagebus")
|
||
(system? #t)
|
||
(comment "D-Bus system bus user")
|
||
(home-directory "/var/run/dbus")
|
||
(shell
|
||
#~(string-append #$shadow "/sbin/nologin")))))
|
||
(activate #~(begin
|
||
(use-modules (guix build utils))
|
||
|
||
(mkdir-p "/var/run/dbus")
|
||
|
||
(let ((user (getpwnam "messagebus")))
|
||
(chown "/var/run/dbus"
|
||
(passwd:uid user) (passwd:gid user)))
|
||
|
||
(unless (file-exists? "/etc/machine-id")
|
||
(format #t "creating /etc/machine-id...~%")
|
||
(let ((prog (string-append #$dbus "/bin/dbus-uuidgen")))
|
||
;; XXX: We can't use 'system' because the initrd's
|
||
;; guile system(3) only works when 'sh' is in $PATH.
|
||
(let ((pid (primitive-fork)))
|
||
(if (zero? pid)
|
||
(call-with-output-file "/etc/machine-id"
|
||
(lambda (port)
|
||
(close-fdes 1)
|
||
(dup2 (port->fdes port) 1)
|
||
(execl prog)))
|
||
(waitpid pid)))))))))))
|
||
|
||
|
||
;;;
|
||
;;; Upower D-Bus service.
|
||
;;;
|
||
|
||
(define* (upower-configuration-file #:key watts-up-pro? poll-batteries?
|
||
ignore-lid? use-percentage-for-policy?
|
||
percentage-low percentage-critical
|
||
percentage-action time-low
|
||
time-critical time-action
|
||
critical-power-action)
|
||
"Return an upower-daemon configuration file."
|
||
(define (bool value)
|
||
(if value "true\n" "false\n"))
|
||
|
||
(text-file "UPower.conf"
|
||
(string-append
|
||
"[UPower]\n"
|
||
"EnableWattsUpPro=" (bool watts-up-pro?)
|
||
"NoPollBatteries=" (bool (not poll-batteries?))
|
||
"IgnoreLid=" (bool ignore-lid?)
|
||
"UsePercentageForPolicy=" (bool use-percentage-for-policy?)
|
||
"PercentageLow=" (number->string percentage-low) "\n"
|
||
"PercentageCritical=" (number->string percentage-critical) "\n"
|
||
"PercentageAction=" (number->string percentage-action) "\n"
|
||
"TimeLow=" (number->string time-low) "\n"
|
||
"TimeCritical=" (number->string time-critical) "\n"
|
||
"TimeAction=" (number->string time-action) "\n"
|
||
"CriticalPowerAction=" (match critical-power-action
|
||
('hybrid-sleep "HybridSleep")
|
||
('hibernate "Hibernate")
|
||
('power-off "PowerOff"))
|
||
"\n")))
|
||
|
||
(define* (upower-service #:key (upower upower)
|
||
(watts-up-pro? #f)
|
||
(poll-batteries? #t)
|
||
(ignore-lid? #f)
|
||
(use-percentage-for-policy? #f)
|
||
(percentage-low 10)
|
||
(percentage-critical 3)
|
||
(percentage-action 2)
|
||
(time-low 1200)
|
||
(time-critical 300)
|
||
(time-action 120)
|
||
(critical-power-action 'hybrid-sleep))
|
||
"Return a service that runs @uref{http://upower.freedesktop.org/,
|
||
@command{upowerd}}, a system-wide monitor for power consumption and battery
|
||
levels, with the given configuration settings. It implements the
|
||
@code{org.freedesktop.UPower} D-Bus interface, and is notably used by GNOME."
|
||
(mlet %store-monad ((config (upower-configuration-file
|
||
#:watts-up-pro? watts-up-pro?
|
||
#:poll-batteries? poll-batteries?
|
||
#:ignore-lid? ignore-lid?
|
||
#:use-percentage-for-policy? use-percentage-for-policy?
|
||
#:percentage-low percentage-low
|
||
#:percentage-critical percentage-critical
|
||
#:percentage-action percentage-action
|
||
#:time-low time-low
|
||
#:time-critical time-critical
|
||
#:time-action time-action
|
||
#:critical-power-action critical-power-action)))
|
||
(return
|
||
(service
|
||
(documentation "Run the UPower power and battery monitor.")
|
||
(provision '(upower-daemon))
|
||
(requirement '(dbus-system udev))
|
||
|
||
(start #~(make-forkexec-constructor
|
||
(list (string-append #$upower "/libexec/upowerd"))
|
||
#:environment-variables
|
||
(list (string-append "UPOWER_CONF_FILE_NAME=" #$config))))
|
||
(stop #~(make-kill-destructor))
|
||
(activate #~(begin
|
||
(use-modules (guix build utils))
|
||
(mkdir-p "/var/lib/upower")
|
||
(let ((user (getpwnam "upower")))
|
||
(chown "/var/lib/upower"
|
||
(passwd:uid user) (passwd:gid user)))))
|
||
|
||
(user-groups (list (user-group
|
||
(name "upower")
|
||
(system? #t))))
|
||
(user-accounts (list (user-account
|
||
(name "upower")
|
||
(group "upower")
|
||
(system? #t)
|
||
(comment "UPower daemon user")
|
||
(home-directory "/var/empty")
|
||
(shell
|
||
#~(string-append #$shadow "/sbin/nologin")))))))))
|
||
|
||
|
||
;;;
|
||
;;; Colord D-Bus service.
|
||
;;;
|
||
|
||
(define* (colord-service #:key (colord colord))
|
||
"Return a service that runs @command{colord}, a system service with a D-Bus
|
||
interface to manage the color profiles of input and output devices such as
|
||
screens and scanners. It is notably used by the GNOME Color Manager graphical
|
||
tool. See @uref{http://www.freedesktop.org/software/colord/, the colord web
|
||
site} for more information."
|
||
(with-monad %store-monad
|
||
(return
|
||
(service
|
||
(documentation "Run the colord color management service.")
|
||
(provision '(colord-daemon))
|
||
(requirement '(dbus-system udev))
|
||
|
||
(start #~(make-forkexec-constructor
|
||
(list (string-append #$colord "/libexec/colord"))))
|
||
(stop #~(make-kill-destructor))
|
||
(activate #~(begin
|
||
(use-modules (guix build utils))
|
||
(mkdir-p "/var/lib/colord")
|
||
(let ((user (getpwnam "colord")))
|
||
(chown "/var/lib/colord"
|
||
(passwd:uid user) (passwd:gid user)))))
|
||
|
||
(user-groups (list (user-group
|
||
(name "colord")
|
||
(system? #t))))
|
||
(user-accounts (list (user-account
|
||
(name "colord")
|
||
(group "colord")
|
||
(system? #t)
|
||
(comment "colord daemon user")
|
||
(home-directory "/var/empty")
|
||
(shell
|
||
#~(string-append #$shadow "/sbin/nologin")))))))))
|
||
|
||
;;; desktop.scm ends here
|