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16/24: services: Add `hurd-console-service-type'.


From: guix-commits
Subject: 16/24: services: Add `hurd-console-service-type'.
Date: Sat, 6 Jun 2020 11:09:39 -0400 (EDT)

janneke pushed a commit to branch wip-hurd-vm
in repository guix.

commit 0529a944bdbf4faa4348eb9df3de11a78a7a6067
Author: Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
AuthorDate: Sun Apr 12 22:17:03 2020 +0200

    services: Add `hurd-console-service-type'.
    
    * gnu/services/hurd.scm: New file.
    * gnu/local.mk (GNU_SYSTEM_MODULES): Add it.
    * doc/guix.texi (Hurd Services): Document it.
---
 doc/guix.texi         | 22 ++++++++++++++++
 gnu/local.mk          |  1 +
 gnu/services/hurd.scm | 73 +++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 96 insertions(+)

diff --git a/doc/guix.texi b/doc/guix.texi
index 167a0a8..9a57b92 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -319,7 +319,9 @@ Services
 * Version Control Services::    Providing remote access to Git repositories.
 * Game Services::               Game servers.
 * PAM Mount Service::           Service to mount volumes when logging in.
+* Guix Services::               Services relating specifically to Guix.
 * Linux Services::              Services tied to the Linux kernel.
+* Hurd Services::               Services specific to a Hurd System.
 * Miscellaneous Services::      Other services.
 
 Defining Services
@@ -12599,6 +12601,7 @@ declaration.
 * PAM Mount Service::           Service to mount volumes when logging in.
 * Guix Services::               Services relating specifically to Guix.
 * Linux Services::              Services tied to the Linux kernel.
+* Hurd Services::               Services specific for a Hurd System.
 * Miscellaneous Services::      Other services.
 @end menu
 
@@ -26037,6 +26040,25 @@ parameters, can be done as follow:
 @end lisp
 @end deffn
 
+@node Hurd Services
+@subsection Hurd Services
+
+@defvr {Scheme Variable} hurd-console-service-type
+This service starts the fancy @code{VGA} console client on the Hurd.
+
+The service's value is a @code{hurd-console-configuration} record.
+@end defvr
+
+@deftp {Data Type} hurd-console-configuration
+This is the data type representing the configuration for the
+hurd-console-service.
+
+@table @asis
+@item @code{hurd} (default: @var{hurd})
+The Hurd package to use.
+@end table
+@end deftp
+
 @node Miscellaneous Services
 @subsection Miscellaneous Services
 
diff --git a/gnu/local.mk b/gnu/local.mk
index 6264c3b..81ab6a7 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -582,6 +582,7 @@ GNU_SYSTEM_MODULES =                                \
   %D%/services/games.scm                       \
   %D%/services/getmail.scm                             \
   %D%/services/guix.scm                        \
+  %D%/services/hurd.scm                                \
   %D%/services/kerberos.scm                    \
   %D%/services/linux.scm                       \
   %D%/services/lirc.scm                                \
diff --git a/gnu/services/hurd.scm b/gnu/services/hurd.scm
new file mode 100644
index 0000000..36da8e2
--- /dev/null
+++ b/gnu/services/hurd.scm
@@ -0,0 +1,73 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2020 Jan (janneke) Nieuwenhuizen <janneke@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 hurd)
+  #:use-module (gnu packages admin)
+  #:use-module (gnu packages hurd)
+  #:use-module (gnu services)
+  #:use-module (gnu services shepherd)
+  #:use-module (gnu system)
+  #:use-module (guix gexp)
+  #:use-module (guix records)
+  #:export (hurd-console-configuration
+            hurd-console-service-type))
+
+;;; Commentary:
+;;;
+;;; This module implements services for the Hurd.
+;;;
+;;; Code:
+
+;;;
+;;; The Hurd VGA console service.
+;;;
+
+(define-record-type* <hurd-console-configuration>
+  hurd-console-configuration make-hurd-console-configuration
+  hurd-console-configuration?
+  (hurd   hurd-console-configuration-hurd ;package
+          (default hurd)))
+
+(define (hurd-console-shepherd-service config)
+  "Return a <shepherd-service> for a Hurd VGA console with CONFIG."
+
+  (define console-command
+    #~(list
+       (string-append #$(hurd-console-configuration-hurd config) 
"/bin/console")
+       "-c" "/dev/vcs"
+       "-d" "vga"
+       "-d" "pc_kbd"
+       "-d" "generic_speaker"))
+
+  (list (shepherd-service
+         (documentation "Run the Hurd’s VGA console client.")
+         (provision '(console))
+         (requirement '(user-processes))
+         (start #~(make-forkexec-constructor #$console-command))
+         (stop #~(make-kill-destructor)))))
+
+(define hurd-console-service-type
+  (service-type
+   (name 'console)
+   (description "Run the Hurd console client.")
+   (extensions
+    (list (service-extension shepherd-root-service-type
+                             hurd-console-shepherd-service)))
+   (default-value (hurd-console-configuration))))
+
+;;; hurd.scm ends here



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