[bug#58528] [PATCH] gnu: Services: Add espeakup service.

[hunter.t.joz@gmail.com]

From: Hunter Jozwiak <hunter.t.joz@gmail.com>

* gnu/services/accessibility.scm: add espeakup-configuration,
espeakup-shepherd-service, and espeakup-service-type.
* doc/guix.texi (Accessibility Services): Document the espeakup configuration.
---
 doc/guix.texi                  | 19 ++++++++++++
 gnu/services/accessibility.scm | 56 ++++++++++++++++++++++++++++++++++
 2 files changed, 75 insertions(+)
 create mode 100644 gnu/services/accessibility.scm

diff --git a/doc/guix.texi b/doc/guix.texi
index dbf4ca9be9..73dc647ca5 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -17572,6 +17572,7 @@ Services

 @menu
 * Base Services::               Essential system services.
+* Accessibility Services:: For those with various impairments.
 * Scheduled Job Execution::     The mcron service.
 * Log Rotation::                The rottlog service.
 * Networking Setup::            Setting up network interfaces.
@@ -18793,6 +18794,24 @@ Base Services
               (local-file "sway-greetd.conf"))))))))
 @end lisp
 @end deftp
+@node Accessibility Services
+@subsection Accessibility Services
+%espeakup-configuration
+@c %start of fragment
+
+@deftp {Data Type} espeakup-configuration
+Available @code{espeakup-configuration} fields are:
+
+@table @asis
+@item @code{default-voice} (default: @code{"en-US"}) (type: string)
+Set the voice that espeak-ng should use by default.
+
+@end table
+
+@end deftp
+
+
+@c %end of fragment

 @node Scheduled Job Execution
 @subsection Scheduled Job Execution
diff --git a/gnu/services/accessibility.scm b/gnu/services/accessibility.scm
new file mode 100644
index 0000000000..5dc8825bec
--- /dev/null
+++ b/gnu/services/accessibility.scm
@@ -0,0 +1,56 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2022 Hunter Jozwiak <hunter.t.joz@gmail.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 accessibility)
+  #:use-module (gnu packages accessibility)
+  #:use-module (gnu services)
+  #:use-module (gnu services configuration)
+  #:use-module (gnu services linux)
+  #:use-module (gnu services shepherd)
+  #:use-module (guix gexp)
+  #:use-module (guix records)
+  #:export (espeakup-configuration espeakup-service-type))
+
+;; Espeakup service
+(define-configuration/no-serialization espeakup-configuration
+                                       (default-voice (string "en-US")
+                                        "Set the voice that espeak-ng
should use by default."))
+
+(define (espeakup-shepherd-service config)
+  (list (shepherd-service (provision '(espeakup))
+                          (documentation "The espeak-ng bridge to speakup.")
+                          (requirement '(user-processes))
+                          (start #~(make-forkexec-constructor (list
(string-append #$espeakup
+
"/bin/espeakup"
+                                                                     "-v"
+
#$(espeakup-configuration-default-voice
+
  config)))))
+                          (stop #~(make-kill-destructor)))))
+
+(define espeakup-service-type
+  (service-type (name 'espeakup)
+                (description
+                 "A lightweight connector between espeak and speakup.")
+                (extensions (list (service-extension
+                                   shepherd-root-service-type
+                                   espeakup-shepherd-service)
+                                  (service-extension
+                                   kernel-module-loader-service-type
+                                   (const (list "speakup_soft")))))
+                (default-value (espeakup-configuration))))
-- 
2.38.0