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services: Group desktop services in (gnu services desktop).

Browse source 
* 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".
This commit is contained in:
Ludovic Courtès 2015-05-01 19:36:10 +02:00
parent 8a629613d1
commit fe1a39d319
6 changed files with 310 additions and 341 deletions
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56
doc/guix.texi
View file

@ -4641,6 +4641,7 @@ declaration.
* Base Services:: Essential system services. * Base Services:: Essential system services.
* Networking Services:: Network setup, SSH daemon, etc. * Networking Services:: Network setup, SSH daemon, etc.
* X Window:: Graphical display. * X Window:: Graphical display.
* Desktop Services:: D-Bus and desktop services.
* Various Services:: Other services. * Various Services:: Other services.
@end menu @end menu
@ -4985,27 +4986,29 @@ appropriate screen resolution; otherwise, it must be a list of
resolutions---e.g., @code{((1024 768) (640 480))}. resolutions---e.g., @code{((1024 768) (640 480))}.
@end deffn @end deffn
@node Various Services @node Desktop Services
@subsubsection Various Services @subsubsection Desktop Services
The @code{(gnu services lirc)} module provides the following service. The @code{(gnu services desktop)} module provides services that are
usually useful in the context of a ``desktop'' setup---that is, on a
machine running a graphical display server, possibly with graphical user
interfaces, etc.
@deffn {Monadic Procedure} lirc-service [#:lirc lirc] @ @deffn {Monadic Procedure} dbus-service @var{services} @
[#:device #f] [#:driver #f] [#:config-file #f] @ [#:dbus @var{dbus}]
[#:extra-options '()] Return a service that runs the ``system bus'', using @var{dbus}, with
Return a service that runs @url{http://www.lirc.org,LIRC}, a daemon that support for @var{services}.
decodes infrared signals from remote controls.
Optionally, @var{device}, @var{driver} and @var{config-file} @uref{http://dbus.freedesktop.org/, D-Bus} is an inter-process communication
(configuration file name) may be specified. See @command{lircd} manual facility. Its system bus is used to allow system services to communicate
for details. and be notified of system-wide events.
Finally, @var{extra-options} is a list of additional command-line options @var{services} must be a list of packages that provide an
passed to @command{lircd}. @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)}.
@end deffn @end deffn
@code{(gnu services upower)} provides a power-management daemon:
@deffn {Monadic Procedure} upower-service [#:upower @var{upower}] @ @deffn {Monadic Procedure} upower-service [#:upower @var{upower}] @
[#:watts-up-pro? #f] @ [#:watts-up-pro? #f] @
[#:poll-batteries? #t] @ [#:poll-batteries? #t] @
@ -5025,8 +5028,6 @@ levels, with the given configuration settings. It implements the
GNOME. GNOME.
@end deffn @end deffn
@code{(gnu services colord)} provides a color management service:
@deffn {Monadic Procedure} colord-service [#:colord @var{colord}] @deffn {Monadic Procedure} colord-service [#:colord @var{colord}]
Return a service that runs @command{colord}, a system service with a D-Bus 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 interface to manage the color profiles of input and output devices such as
@ -5035,6 +5036,27 @@ tool. See @uref{http://www.freedesktop.org/software/colord/, the colord web
site} for more information. site} for more information.
@end deffn @end deffn
@node Various Services
@subsubsection Various Services
The @code{(gnu services lirc)} module provides the following service.
@deffn {Monadic Procedure} lirc-service [#:lirc lirc] @
[#:device #f] [#:driver #f] [#:config-file #f] @
[#:extra-options '()]
Return a service that runs @url{http://www.lirc.org,LIRC}, a daemon that
decodes infrared signals from remote controls.
Optionally, @var{device}, @var{driver} and @var{config-file}
(configuration file name) may be specified. See @command{lircd} manual
for details.
Finally, @var{extra-options} is a list of additional command-line options
passed to @command{lircd}.
@end deffn
@node Setuid Programs @node Setuid Programs
@subsection Setuid Programs @subsection Setuid Programs

4
gnu-system.am
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@ -329,13 +329,11 @@ GNU_SYSTEM_MODULES = \
gnu/services.scm \ gnu/services.scm \
gnu/services/avahi.scm \ gnu/services/avahi.scm \
gnu/services/base.scm \ gnu/services/base.scm \
gnu/services/colord.scm \ gnu/services/desktop.scm \
gnu/services/dbus.scm \
gnu/services/dmd.scm \ gnu/services/dmd.scm \
gnu/services/lirc.scm \ gnu/services/lirc.scm \
gnu/services/networking.scm \ gnu/services/networking.scm \
gnu/services/ssh.scm \ gnu/services/ssh.scm \
gnu/services/upower.scm \
gnu/services/xorg.scm \ gnu/services/xorg.scm \
\ \
gnu/system.scm \ gnu/system.scm \

72
gnu/services/colord.scm
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@ -1,72 +0,0 @@
;;; 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 colord)
#:use-module (gnu services)
#:use-module (gnu system shadow)
#:use-module (gnu packages gnome)
#:use-module (ice-9 match)
#:use-module (guix monads)
#:use-module (guix store)
#:use-module (guix gexp)
#:export (colord-service))
;;; Commentary:
;;;
;;; This module provides service definitions for the colord color management
;;; service.
;;;
;;; Code:
(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
"/run/current-system/profile/sbin/nologin"))))))))
;;; colord.scm ends here

127
gnu/services/dbus.scm
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@ -1,127 +0,0 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2014, 2015 Ludovic Courtès <ludo@gnu.org>
;;;
;;; 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 dbus)
#:use-module (gnu services)
#:use-module (gnu system shadow)
#:use-module (gnu packages glib)
#:use-module (gnu packages admin)
#:use-module (guix monads)
#:use-module (guix store)
#:use-module (guix gexp)
#:export (dbus-service))
;;; Commentary:
;;;
;;; This module supports the configuration of the D-Bus message bus
;;; (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.
;;;
;;; Code:
(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}.
@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)))))))))))
;;; dbus.scm ends here

270
gnu/services/desktop.scm Normal file
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@ -0,0 +1,270 @@
;;; 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

122
gnu/services/upower.scm
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@ -1,122 +0,0 @@
;;; GNU Guix --- Functional package management for GNU
;;; 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 upower)
#:use-module (gnu services)
#:use-module (gnu system shadow)
#:use-module (gnu packages gnome)
#:use-module (ice-9 match)
#:use-module (guix monads)
#:use-module (guix store)
#:use-module (guix gexp)
#:export (upower-service))
;;; Commentary:
;;;
;;; This module provides service definitions for the UPower power and battery
;;; monitoring service.
;;;
;;; Code:
(define* (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 (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
"/run/current-system/profile/sbin/nologin"))))))))
;;; upower.scm ends here