gnu: services: Add GNOME and XFCE desktop services.
* gnu/services/desktop.scm (package-direct-input-selector): New function. (<gnome-desktop-configuration>, gnome-desktop-service-type) (<xfce-desktop-configuration>, xfce-desktop-service-type): New variables. (gnome-desktop-service, xfce-desktop-service): New public variables. * doc/guix.texi (Desktop Services): Document new variables.master
Andy Wingo
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20095cc513
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7a2413e46d
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@ -7474,7 +7474,8 @@ makes the good ol' XlockMore usable.
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The @code{(gnu services desktop)} module provides services that are
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usually useful in the context of a ``desktop'' setup---that is, on a
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machine running a graphical display server, possibly with graphical user
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interfaces, etc.
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interfaces, etc. It also defines services that provide specific desktop
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environments like GNOME and XFCE.
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To simplify things, the module defines a variable containing the set of
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services that users typically expect on a machine with a graphical
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@ -7499,8 +7500,57 @@ The @var{%desktop-services} variable can be used as the @code{services}
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field of an @code{operating-system} declaration (@pxref{operating-system
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Reference, @code{services}}).
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The actual service definitions provided by @code{(gnu services dbus)}
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and @code{(gnu services desktop)} are described below.
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Additionally, the @code{gnome-desktop-service} and
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@code{xfce-desktop-service} procedures can add GNOME and/or XFCE to a
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system. To ``add GNOME'' means that system-level services like the
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backlight adjustment helpers and the power management utilities are
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added to the system, extending @code{polkit} and @code{dbus}
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appropriately, allowing GNOME to operate with elevated privileges on a
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limited number of special-purpose system interfaces. Additionally,
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adding a service made by @code{gnome-desktop-service} adds the GNOME
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metapackage to the system profile. Likewise, adding the XFCE service
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not only adds the @code{xfce} metapackage to the system profile, but it
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also gives the Thunar file manager the ability to open a ``root-mode''
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file management window, if the user authenticates using the
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administrator's password via the standard polkit graphical interface.
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@deffn {Scheme Procedure} gnome-desktop-service
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Return a service that adds the @code{gnome} package to the system
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profile, and extends polkit with the actions from
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@code{gnome-settings-daemon}.
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@end deffn
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@deffn {Scheme Procedure} xfce-desktop-service
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Return a service that adds the @code{xfce} package to the system profile,
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and extends polkit with the abilit for @code{thunar} to manipulate the
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file system as root from within a user session, after the user has
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authenticated with the administrator's password.
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@end deffn
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Because the GNOME and XFCE desktop services pull in so many packages,
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the default @code{%desktop-services} variable doesn't include either of
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them by default. To add GNOME or XFCE, just @code{cons} them onto
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@code{%desktop-services} in the @code{services} field of your
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@code{operating-system}:
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@example
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(use-modules (gnu))
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(use-service-modules desktop)
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(operating-system
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...
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;; cons* adds items to the list given as its last argument.
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(services (cons* (gnome-desktop-service)
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(xfce-desktop-service)
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%desktop-services))
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...)
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@end example
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These desktop environments will then be available as options in the
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graphical login window.
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The actual service definitions included in @code{%desktop-services} and
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provided by @code{(gnu services dbus)} and @code{(gnu services desktop)}
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are described below.
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@deffn {Scheme Procedure} dbus-service [#:dbus @var{dbus}] [#:services '()]
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Return a service that runs the ``system bus'', using @var{dbus}, with
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@ -32,6 +32,7 @@
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#:use-module (gnu packages admin)
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#:use-module (gnu packages freedesktop)
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#:use-module (gnu packages gnome)
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#:use-module (gnu packages xfce)
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#:use-module (gnu packages avahi)
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#:use-module (gnu packages polkit)
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#:use-module (gnu packages xdisorg)
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@ -51,6 +52,8 @@
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polkit-service
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elogind-configuration
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elogind-service
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gnome-desktop-service
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xfce-desktop-service
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%desktop-services))
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;;; Commentary:
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@ -67,6 +70,11 @@
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(define (bool value)
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(if value "true\n" "false\n"))
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(define (package-direct-input-selector input)
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(lambda (package)
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(match (assoc-ref (package-direct-inputs package) input)
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((package . _) package))))
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(define (wrapped-dbus-service service program variable value)
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"Return a wrapper for @var{service}, a package containing a D-Bus service,
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@ -695,6 +703,64 @@ types (graphical, console, remote, etc.). It can also clean up after users
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when they log out."
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(service elogind-service-type config))
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;;;
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;;; GNOME desktop service.
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;;;
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(define-record-type* <gnome-desktop-configuration> gnome-desktop-configuration
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make-gnome-desktop-configuration
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gnome-desktop-configuration
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(gnome-package gnome-package (default gnome)))
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(define gnome-desktop-service-type
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(service-type
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(name 'gnome-desktop)
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(extensions
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(list (service-extension polkit-service-type
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(compose list
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(package-direct-input-selector
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"gnome-settings-daemon")
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gnome-package))
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(service-extension profile-service-type
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(compose list
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gnome-package))))))
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(define* (gnome-desktop-service #:key (config (gnome-desktop-configuration)))
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"Return a service that adds the @code{gnome} package to the system profile,
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and extends polkit with the actions from @code{gnome-settings-daemon}."
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(service gnome-desktop-service-type config))
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;;;
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;;; XFCE desktop service.
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;;;
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(define-record-type* <xfce-desktop-configuration> xfce-desktop-configuration
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make-xfce-desktop-configuration
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xfce-desktop-configuration
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(xfce xfce-package (default xfce)))
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(define xfce-desktop-service-type
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(service-type
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(name 'xfce-desktop)
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(extensions
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(list (service-extension polkit-service-type
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(compose list
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(package-direct-input-selector
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"thunar")
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xfce-package))
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(service-extension profile-service-type
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(compose list
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xfce-package))))))
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(define* (xfce-desktop-service #:key (config (xfce-desktop-configuration)))
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"Return a service that adds the @code{xfce} package to the system profile,
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and extends polkit with the abilit for @code{thunar} to manipulate the file
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system as root from within a user session, after the user has authenticated
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with the administrator's password."
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(service xfce-desktop-service-type config))
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;;;
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;;; The default set of desktop services.
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