My first service since the big service API rewrite. How did I do?
>From 6f483d37bf157ee0d253d2aaa919d6900d23453c Mon Sep 17 00:00:00 2001
From: David Thompson <dthomps...@worcester.edu>
Date: Fri, 27 Nov 2015 20:40:59 -0500
Subject: [PATCH] services: Add transmission-service.
* gnu/services/bittorrent.scm: New file.
* gnu-system.am (GNU_SYSTEM_MODULES): Add it.
* doc/guix.texi ("BitTorrent Services"): Document it.
---
doc/guix.texi | 19 +++
gnu-system.am | 1 +
gnu/services/bittorrent.scm | 122
3 files changed, 142 insertions(+)
create mode 100644 gnu/services/bittorrent.scm
diff --git a/doc/guix.texi b/doc/guix.texi
index b404453..847d196 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -6292,6 +6292,7 @@ declaration.
* Desktop Services::D-Bus and desktop services.
* Database Services:: SQL databases.
* Web Services::Web servers.
+* BitTorrent Services:: BitTorrent services.
* Various Services::Other services.
@end menu
@@ -7013,6 +7014,24 @@ directories are created when the service is activated.
@end deffn
+@node BitTorrent Services
+@subsubsection BitTorrent Services
+
+The @code{(gnu services bittorrent)} module provides the following service:
+
+@deffn {Scheme Procedure} transmission-service [#:transmission transmission] @
+ [#:port 9091] [#:peer-port 51413]@
+ [#:download-directory ``/var/lib/transmission/downloads'']
+
+Return a service that runs @var{transmission}, a daemon that downloads
+and shares files via the BitTorrent protocol.
+
+The daemon will serve the web user interface over @var{port}, handle
+BitTorrent tasks over @var{peer-port}, and save downloaded files to
+@var{download-directory}.
+
+@end deffn
+
@node Various Services
@subsubsection Various Services
diff --git a/gnu-system.am b/gnu-system.am
index f69645b..da1b359 100644
--- a/gnu-system.am
+++ b/gnu-system.am
@@ -354,6 +354,7 @@ GNU_SYSTEM_MODULES =\
gnu/services.scm\
gnu/services/avahi.scm \
gnu/services/base.scm\
+ gnu/services/bittorrent.scm \
gnu/services/databases.scm \
gnu/services/dbus.scm\
gnu/services/desktop.scm \
diff --git a/gnu/services/bittorrent.scm b/gnu/services/bittorrent.scm
new file mode 100644
index 000..140df53
--- /dev/null
+++ b/gnu/services/bittorrent.scm
@@ -0,0 +1,122 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2015 David Thompson <da...@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 bittorrent)
+ #:use-module (gnu services)
+ #:use-module (gnu services dmd)
+ #:use-module (gnu system shadow)
+ #:use-module (gnu packages admin)
+ #:use-module (gnu packages bittorrent)
+ #:use-module (guix records)
+ #:use-module (guix gexp)
+ #:use-module (ice-9 match)
+ #:export (%transmission-state-directory
+
+transmission-configuration
+transmission-configuration?
+transmission-configuration-transmission
+transmission-configuration-port
+transmission-configuration-peer-port
+transmission-configuration-download-directory
+
+transmission-service-type
+transmission-service))
+
+;;; Commentary:
+;;;
+;;; BitTorrent services.
+;;;
+;;; Code:
+
+(define %transmission-state-directory "/var/lib/transmission")
+
+(define-record-type*
+ transmission-configuration make-transmission-configuration
+ transmission-configuration?
+ (transmission transmission-configuration-transmission) ;
+ (port transmission-configuration-port) ; integer
+ (peer-port transmission-configuration-peer-port) ; integer
+ (download-directory transmission-configuration-download-directory)) ; string
+
+(define %transmission-accounts
+ (list (user-group (name "transmission") (system? #t))
+(user-account
+ (name "transmission")
+ (group "transmission")
+ (system? #t)
+ (comment "transmission daemon user")
+ (home-directory "/var/empty")
+ (shell #~(string-append #$shadow "/sbin/nologin")
+
+(define (transmission-activation
