From 374f14c265224048b065f2c177f80718b905201b Mon Sep 17 00:00:00 2001
From: Ludovic Courtès <ludo@gnu.org>
Date: Sun, 17 Apr 2016 17:59:58 +0200
Subject: system: Move 'luks-device-mapping' to (gnu system mapped-devices).

* gnu/system.scm (open-luks-device, close-luks-device)
(luks-device-mapping): Move to...
* gnu/system/mapped-devices.scm: ... here.  New file.
---
 gnu/system.scm                | 23 +----------------------
 gnu/system/mapped-devices.scm | 29 ++++++++++++++++++++++++++++-
 2 files changed, 29 insertions(+), 23 deletions(-)

diff --git a/gnu/system.scm b/gnu/system.scm
index a52881180d..b1454b262d 100644
--- a/gnu/system.scm
+++ b/gnu/system.scm
@@ -43,7 +43,6 @@
   #:use-module (gnu packages texinfo)
   #:use-module (gnu packages compression)
   #:use-module (gnu packages firmware)
-  #:autoload   (gnu packages cryptsetup) (cryptsetup)
   #:use-module (gnu services)
   #:use-module (gnu services shepherd)
   #:use-module (gnu services base)
@@ -102,9 +101,7 @@
             local-host-aliases
             %setuid-programs
             %base-packages
-            %base-firmware
-
-            luks-device-mapping))
+            %base-firmware))
 
 ;;; Commentary:
 ;;;
@@ -177,24 +174,6 @@
 ;;; Services.
 ;;;
 
-(define (open-luks-device source target)
-  "Return a gexp that maps SOURCE to TARGET as a LUKS device, using
-'cryptsetup'."
-  #~(zero? (system* (string-append #$cryptsetup "/sbin/cryptsetup")
-                    "open" "--type" "luks"
-                    #$source #$target)))
-
-(define (close-luks-device source target)
-  "Return a gexp that closes TARGET, a LUKS device."
-  #~(zero? (system* (string-append #$cryptsetup "/sbin/cryptsetup")
-                    "close" #$target)))
-
-(define luks-device-mapping
-  ;; The type of LUKS mapped devices.
-  (mapped-device-kind
-   (open open-luks-device)
-   (close close-luks-device)))
-
 (define (other-file-system-services os)
   "Return file system services for the file systems of OS that are not marked
 as 'needed-for-boot'."
diff --git a/gnu/system/mapped-devices.scm b/gnu/system/mapped-devices.scm
index 81afb91f86..dd8e432688 100644
--- a/gnu/system/mapped-devices.scm
+++ b/gnu/system/mapped-devices.scm
@@ -17,7 +17,9 @@
 ;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (gnu system mapped-devices)
+  #:use-module (guix gexp)
   #:use-module (guix records)
+  #:autoload   (gnu packages cryptsetup) (cryptsetup)
   #:export (mapped-device
             mapped-device?
             mapped-device-source
@@ -27,7 +29,9 @@
             mapped-device-kind
             mapped-device-kind?
             mapped-device-kind-open
-            mapped-device-kind-close))
+            mapped-device-kind-close
+
+            luks-device-mapping))
 
 ;;; Commentary:
 ;;;
@@ -50,4 +54,27 @@
   (close     mapped-device-kind-close             ;source target -> gexp
              (default (const #~(const #f)))))
 
+
+;;;
+;;; Common device mappings.
+;;;
+
+(define (open-luks-device source target)
+  "Return a gexp that maps SOURCE to TARGET as a LUKS device, using
+'cryptsetup'."
+  #~(zero? (system* (string-append #$cryptsetup "/sbin/cryptsetup")
+                    "open" "--type" "luks"
+                    #$source #$target)))
+
+(define (close-luks-device source target)
+  "Return a gexp that closes TARGET, a LUKS device."
+  #~(zero? (system* (string-append #$cryptsetup "/sbin/cryptsetup")
+                    "close" #$target)))
+
+(define luks-device-mapping
+  ;; The type of LUKS mapped devices.
+  (mapped-device-kind
+   (open open-luks-device)
+   (close close-luks-device)))
+
 ;;; mapped-devices.scm ends here
-- 
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