gnu: Add ruby-mail.

* gnu/packages/ruby.scm (ruby-mail): New variable.

Signed-off-by: Marius Bakke <mbakke@fastmail.com>

gnu/packages/ruby.scm

@@ -5,6 +5,7 @@
 ;;; Copyright © 2014, 2015 David Thompson <davet@gnu.org>
 ;;; Copyright © 2015 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2015, 2016, 2017 Ben Woodcroft <donttrustben@gmail.com>
+;;; Copyright © 2017 ng0 <contact.ng0@cryptolab.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -4198,3 +4199,35 @@ (define-public ruby-net-http-digest-auth
 of the more insecure basic authentication scheme.")
     (home-page "http://github.com/drbrain/net-http-digest_auth")
     (license license:expat)))
+
+(define-public ruby-mail
+  (package
+    (name "ruby-mail")
+    (version "2.6.4")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (rubygems-uri "mail" version))
+       (sha256
+        (base32
+         "0c9vqfy0na9b5096i5i4qvrvhwamjnmajhgqi3kdsdfl8l6agmkp"))))
+    (build-system ruby-build-system)
+    (propagated-inputs
+     `(("ruby-mime-types" ,ruby-mime-types)))
+    (arguments
+     ;; Tests require extra gems not included in the Gemfile.
+     ;; XXX: Try enabling this for the next version with mini_mime.
+     `(#:tests? #f))
+    (synopsis "Mail library for Ruby")
+    (description
+     "Mail is an internet library for Ruby that is designed to handle email
+generation, parsing and sending.  The purpose of this library is to provide
+a single point of access to handle all email functions, including sending
+and receiving emails.  All network type actions are done through proxy
+methods to @code{Net::SMTP}, @code{Net::POP3} etc.
+
+Mail has been designed with a very simple object oriented system that
+really opens up the email messages you are parsing, if you know what you
+are doing, you can fiddle with every last bit of your email directly.")
+    (home-page "https://github.com/mikel/mail")
+    (license license:expat)))