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02/02: services: sane: Create the "scanner" account.
From: |
guix-commits |
Subject: |
02/02: services: sane: Create the "scanner" account. |
Date: |
Tue, 21 Jan 2020 09:03:04 -0500 (EST) |
civodul pushed a commit to branch master
in repository guix.
commit b2f948be9f815582a49bd80a9594a881d7d1a56e
Author: Ludovic Courtès <address@hidden>
AuthorDate: Tue Jan 21 14:26:41 2020 +0100
services: sane: Create the "scanner" account.
* gnu/services/desktop.scm (%sane-accounts, sane-service-type): New
variables.
(%desktop-services): Use SANE-SERVICE-TYPE instead of 'simple-service'.
* doc/guix.texi (Desktop Services): Document 'sane-service-type'.
---
doc/guix.texi | 7 +++++++
gnu/services/desktop.scm | 28 ++++++++++++++++++++++++++--
2 files changed, 33 insertions(+), 2 deletions(-)
diff --git a/doc/guix.texi b/doc/guix.texi
index 2b5bfc6..d674b94 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -15845,6 +15845,13 @@ this application is allowed location info access. An
empty users list
means that all users are allowed.
@end deffn
+@cindex scanner access
+@deffn {Scheme Procedure} sane-service-type
+This service provides access to scanners @i{via}
+@uref{http://www.sane-project.org, SANE} by installing the necessary udev
+rules.
+@end deffn
+
@defvr {Scheme Variable} %standard-geoclue-applications
The standard list of well-known GeoClue application configurations,
granting authority to the GNOME date-and-time utility to ask for the
diff --git a/gnu/services/desktop.scm b/gnu/services/desktop.scm
index dec1c3f..9dcdf38 100644
--- a/gnu/services/desktop.scm
+++ b/gnu/services/desktop.scm
@@ -1,5 +1,5 @@
;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2014, 2015, 2016, 2017, 2018, 2019 Ludovic Courtès
<address@hidden>
+;;; Copyright © 2014, 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès
<address@hidden>
;;; Copyright © 2015 Andy Wingo <address@hidden>
;;; Copyright © 2015 Mark H Weaver <address@hidden>
;;; Copyright © 2016 Sou Bunnbu <address@hidden>
@@ -110,6 +110,7 @@
accountsservice-service
cups-pk-helper-service-type
+ sane-service-type
gnome-desktop-configuration
gnome-desktop-configuration?
@@ -838,6 +839,29 @@ accountsservice web site} for more information."
;;;
+;;; Scanner access via SANE.
+;;;
+
+(define %sane-accounts
+ ;; The '60-libsane.rules' udev rules refers to the "scanner" group.
+ (list (user-group (name "scanner") (system? #t))))
+
+(define sane-service-type
+ (service-type
+ (name 'sane)
+ (description
+ "This service provides access to scanners @i{via}
+@uref{http://www.sane-project.org, SANE} by installing the necessary udev
+rules.")
+ (default-value sane-backends-minimal)
+ (extensions
+ (list (service-extension udev-service-type list)
+ (service-extension account-service-type
+ (const %sane-accounts))))))
+
+
+
+;;;
;;; GNOME desktop service.
;;;
@@ -1156,7 +1180,7 @@ or setting its password with passwd.")))
;; them.
(simple-service 'mtp udev-service-type (list libmtp))
;; Add udev rules for scanners.
- (simple-service 'sane udev-service-type (list sane-backends-minimal))
+ (service sane-service-type)
;; Add polkit rules, so that non-root users in the wheel group can
;; perform administrative tasks (similar to "sudo").
polkit-wheel-service