;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2018 Mathieu Othacehe <m.othacehe@gmail.com>
;;; Copyright © 2019 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.
;;;
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;;; 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 installer services)
  #:use-module (guix records)
  #:use-module (srfi srfi-1)
  #:export (system-service?
            system-serv</td></tr></table>
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<div class='content'><div id='summary'><pre>
Display configurable login message after successful authentication.

Patch by E. Bavier

--- slim-1.3.6/panel.cpp.orig	1969-12-31 18:00:00.000000000 -0600
+++ slim-1.3.6/panel.cpp	2016-10-17 17:00:07.259649063 -0500
@@ -260,6 +260,7 @@
 
 void Panel::ClosePanel() {
 	XUngrabKeyboard(Dpy, CurrentTime);
+	XClearWindow(Dpy, Root);
 	XUnmapWindow(Dpy, Win);
 	XDestroyWindow(Dpy, Win);
 	XFlush(Dpy);
--- slim-1.3.6/cfg.cpp.orig	2016-10-17 17:08:06.767666139 -0500
+++ slim-1.3.6/cfg.cpp	2016-10-17 17:06:53.115663516 -0500
@@ -52,6 +52,7 @@
 	options.insert(option(&quot;lockfile&quot;,&quot;/var/run/slim.lock&quot;));
 	options.insert(option(&quot;logfile&quot;,&quot;/var/log/slim.log&quot;));
 	options.insert(option(&quot;authfile&quot;,&quot;/var/run/slim.auth&quot;));
+	options.insert(option(&quot;login_msg&quot;,&quot;Logging in...&quot;));
 	options.insert(option(&quot;shutdown_msg&quot;,&quot;The system is halting...&quot;));
 	options.insert(option(&quot;reboot_msg&quot;,&quot;The system is rebooting...&quot;));
 	options.insert(option(&quot;sessiondir&quot;,&quot;&quot;));
--- slim-1.3.6/app.cpp.orig	2016-10-17 17:08:41.731667384 -0500
+++ slim-1.3.6/app.cpp	2016-10-17 17:07:48.415665486 -0500
@@ -520,6 +520,8 @@
 	struct passwd *pw;
 	pid_t pid;
 
+	LoginPanel-&gt;Message((char*)cfg-&gt;getOption(&quot;login_msg&quot;).c_str());
+
 #ifdef USE_PAM
 	try{
 		pam.open_session();
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tworking)
      (packages '((specification->package "nss-certs")))
      (recommended? #t))

     ;; Network connectivity management.
     (system-service
      (name (G_ "NetworkManager network connection manager"))
      (type 'network-management)
      (snippet '((service network-manager-service-type)
                 (service wpa-supplicant-service-type))))
     (system-service
      (name (G_ "Connman network connection manager"))
      (type 'network-management)
      (snippet '((service connman-service-type)
                 (service wpa-supplicant-service-type))))
     (system-service
      (name (G_ "DHCP client (dynamic IP address assignment)"))
      (type 'network-management)
      (snippet '((service dhcp-client-service-type)))))))

(define (desktop-system-service? service)
  "Return true if SERVICE is a desktop environment service."
  (eq? 'desktop (system-service-type service)))

(define (networking-system-service? service)
  "Return true if SERVICE is a desktop environment service."
  (eq? 'networking (system-service-type service)))

(define (system-services->configuration services)
  "Return the configuration field for SERVICES."
  (let* ((snippets (append-map system-service-snippet services))
         (packages (append-map system-service-packages services))
         (desktop? (find desktop-system-service? services))
         (base     (if desktop?
                       '%desktop-services
                       '%base-services)))
    (if (null? snippets)
        `(,@(if (null? packages)
                '()
                `((packages (append (list ,@packages)
                                    %base-packages))))
          (services ,base))
        `(,@(if (null? packages)
                '()
                `((packages (append (list ,@packages)
                                    %base-packages))))
          (services (append (list ,@snippets

                                  ,@(if desktop?
                                        ;; XXX: Assume 'keyboard-layout' is in
                                        ;; scope.
                                        '((set-xorg-configuration
                                           (xorg-configuration
                                            (keyboard-layout keyboard-layout))))
                                        '()))
                           ,base))))))