gnu: Add GNU Rush.

* gnu/packages/rush.scm: New file.
* gnu-system.am (GNU_SYSTEM_MODULES): Add it.

gnu-system.am

@@ -137,6 +137,7 @@ GNU_SYSTEM_MODULES =				\
   gnu/packages/readline.scm			\
   gnu/packages/recutils.scm			\
   gnu/packages/rsync.scm			\
+  gnu/packages/rush.scm				\
   gnu/packages/samba.scm			\
   gnu/packages/scheme.scm			\
   gnu/packages/screen.scm			\

gnu/packages/rush.scm

@@ -0,0 +1,56 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2013 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 packages rush)
+  #:use-module (guix packages)
+  #:use-module (guix download)
+  #:use-module (guix build-system gnu)
+  #:use-module (guix licenses)
+  #:use-module (gnu packages))
+
+(define-public rush
+  (package
+    (name "rush")
+    (version "1.7")
+    (source (origin
+             (method url-fetch)
+             (uri (string-append
+                   "mirror://gnu/rush/rush-"
+                   version
+                   ".tar.gz"))
+             (sha256
+              (base32
+               "0fh0gbbp0iiq3wbkf503xb40r8ljk42vyj9bnlflbz82d6ipy1rm"))))
+    (build-system gnu-build-system)
+    (arguments
+     '(#:patches (list (assoc-ref %build-inputs "patch/gets-undeclared"))))
+    (inputs `(("patch/gets-undeclared"
+               ,(search-patch "cpio-gets-undeclared.patch"))))
+    (home-page "http://www.gnu.org/software/rush/")
+    (synopsis "Restricted user (login) shell")
+    (description
+     "GNU Rush is a Restricted User Shell, designed for sites providing
+limited remote access to their resources, such as svn or git repositories,
+scp, or the like.  Using a sophisticated configuration file, Rush gives you
+complete control over the command lines that users execute, as well as over
+the usage of system resources, such as virtual memory, CPU time, etc.
+
+In particular, it allows remote programs to be run in a chrooted environment,
+which is important with such programs as sftp-server or scp, that lack this
+ability.")
+    (license gpl3+)))