gnu: Introduce the (gnu services ...) modules.

* gnu/system/dmd.scm: Remove file.  Move contents to...
* gnu/services.scm, gnu/services/base.scm, gnu/services/dmd.scm,
  gnu/services/networking.scm, gnu/services/xorg.scm: ... here.  New
  files.
* gnu/system.scm, gnu/system/vm.scm: Adjust accordingly.
* guix/scripts/system.scm (%user-module): Likewise.
* doc/guix.texi (Using the Configuration System): Likewise.
  (Defining Services): Likewise.

1 files changed, 62 insertions, 0 deletions

diff --git a/gnu/services.scm b/gnu/services.scm
new file mode 100644
index 0000000000..eccde4e9a3
--- /dev/null
+++ b/gnu/services.scm
@@ -0,0 +1,62 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2013, 2014 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.
+;;;
+;;; 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)
+  #:use-module (guix records)
+  #:export (service?
+            service
+            service-documentation
+            service-provision
+            service-requirement
+            service-respawn?
+            service-start
+            service-stop
+            service-inputs
+            service-user-accounts
+            service-user-groups
+            service-pam-services))
+
+;;; Commentary:
+;;;
+;;; System services as cajoled by dmd.
+;;;
+;;; Code:
+
+(define-record-type* <service>
+  service make-service
+  service?
+  (documentation service-documentation            ; string
+                 (default "[No documentation.]"))
+  (provision     service-provision)               ; list of symbols
+  (requirement   service-requirement              ; list of symbols
+                 (default '()))
+  (respawn?      service-respawn?                 ; Boolean
+                 (default #t))
+  (start         service-start)                   ; expression
+  (stop          service-stop                     ; expression
+                 (default #f))
+  (inputs        service-inputs                   ; list of inputs
+                 (default '()))
+  (user-accounts service-user-accounts            ; list of <user-account>
+                 (default '()))
+  (user-groups   service-user-groups              ; list of <user-groups>
+                 (default '()))
+  (pam-services  service-pam-services             ; list of <pam-service>
+                 (default '())))
+
+;;; services.scm ends here.