gnu: Add font-tuffy.

* gnu/packages/fonts.scm (font-tuffy): New variable.

Signed-off-by: 宋文武 <iyzsong@member.fsf.org>

gnu/packages/fonts.scm

@@ -3260,6 +3260,29 @@ minor tweaks to improve readability (a matter of taste of course).
 Most characters are just 4px wide, which is brilliant for low dpi(90-120) displays.")
     (license license:silofl1.1)))
 
+(define-public font-tuffy
+  (package
+    (name "font-tuffy")
+    (version "20120614")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "http://tulrich.com/fonts/tuffy-" version ".tar.gz"))
+       (file-name (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "02vf72bgrp30vrbfhxjw82s115z27dwfgnmmzfb0n9wfhxxfpyf6"))
+       (snippet '(delete-file "._Tuffy.otf"))))
+    (build-system font-build-system)
+    (home-page "http://tulrich.com/fonts/")
+    (synopsis "The Tuffy Truetype Font Family")
+    (description
+     "Thatcher Ulrich's first outline font design.  He started with the goal
++of producing a neutral, readable sans-serif text font.  There are lots of
++\"expressive\" fonts out there, but he wanted to start with something very
++plain and clean, something he might want to actually use.")
+    (license license:public-domain)))
+
 (define-public font-velvetyne-jgs
   ;; There are no releases nor tags.
   (let ((revision "1")