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authorAndy Wingo <wingo@pobox.com>2015-04-04 21:49:02 +0200
committerLudovic Courtès <ludo@gnu.org>2015-04-13 00:02:59 +0200
commitbe234128487306fd922c61fbb0162c53eb5fe6df (patch)
tree3e5a5e94b9b8e7de6312ca22fe1a856984524c74
parenta1d5bb0ec790d55d6800ad7e740ded44a32ed215 (diff)
downloadguix-be234128487306fd922c61fbb0162c53eb5fe6df.tar
guix-be234128487306fd922c61fbb0162c53eb5fe6df.tar.gz
services: Add upower.
* gnu-system.am (GNU_SYSTEM_MODULES): Add gnu/services/upower.scm. * gnu/services/upower.scm: New file, defining a upower service. * doc/guix.texi (Various Services): Mention it. Co-authored-by: Ludovic Courtès <ludo@gnu.org>
-rw-r--r--doc/guix.texi21
-rw-r--r--gnu-system.am1
-rw-r--r--gnu/services/upower.scm122
3 files changed, 144 insertions, 0 deletions
diff --git a/doc/guix.texi b/doc/guix.texi
index 7dbfb661b0..35b8cc1b45 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -4831,6 +4831,27 @@ Finally, @var{extra-options} is a list of additional command-line options
passed to @command{lircd}.
@end deffn
+@code{(gnu services upower)} provides a power-management daemon:
+
+@deffn {Monadic Procedure} upower-service [#:upower @var{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.
+@end deffn
+
@code{(gnu services colord)} provides a color management service:
@deffn {Monadic Procedure} colord-service [#:colord @var{colord}]
diff --git a/gnu-system.am b/gnu-system.am
index 7b83f4cf67..afe43bc67a 100644
--- a/gnu-system.am
+++ b/gnu-system.am
@@ -330,6 +330,7 @@ GNU_SYSTEM_MODULES = \
gnu/services/lirc.scm \
gnu/services/networking.scm \
gnu/services/ssh.scm \
+ gnu/services/upower.scm \
gnu/services/xorg.scm \
\
gnu/system.scm \
diff --git a/gnu/services/upower.scm b/gnu/services/upower.scm
new file mode 100644
index 0000000000..3654c812f1
--- /dev/null
+++ b/gnu/services/upower.scm
@@ -0,0 +1,122 @@
+;;; 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