gnu: Add emacs-elfeed-tube.

* gnu/packages/emacs-xyz.scm (emacs-elfeed-tube): New variable.

Change-Id: Ie6560c50da046d7e963abe1717a3edae38b72149
Signed-off-by: Ian Eure <ian@retrospec.tv>

gnu/packages/emacs-xyz.scm

@@ -16251,6 +16251,28 @@ those with lower, regardless of date.  The idea is to prioritize content
 important to you.")
     (license license:gpl3+)))
 
+(define-public emacs-elfeed-tube
+  (package
+    (name "emacs-elfeed-tube")
+    (version "0.15")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/karthink/elfeed-tube")
+             (commit (string-append "v" version))))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32 "1vsrsnvz0ysd36a99zk7n2giv0gxznlnls8zq6lcc0hwqw78i5cq"))))
+    (build-system emacs-build-system)
+    (propagated-inputs (list emacs-elfeed emacs-aio emacs-mpv))
+    (home-page "https://github.com/karthink/elfeed-tube/")
+    (synopsis "YouTube integration for Elfeed")
+    (description
+     "@code{elfeed-tube} is an extension for Elfeed that enhances Youtube RSS
+feed subscriptions.")
+    (license license:unlicense)))
+
 (define-public emacs-el-x
   (package
     (name "emacs-el-x")