15/53: gnu: Add rust-data-encoding.

[guix-commits]

efraim pushed a commit to branch master
in repository guix.

commit 0c15f1432cd67299b2e3fd59421fcef120eadb8c
Author: Efraim Flashner <address@hidden>
Date:   Wed Aug 28 15:44:58 2019 +0300

    gnu: Add rust-data-encoding.
    
    * gnu/packages/crates-io.scm (rust-data-encoding): New variable.
---
 gnu/packages/crates-io.scm | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/gnu/packages/crates-io.scm b/gnu/packages/crates-io.scm
index 58f4d18..5a682d4 100644
--- a/gnu/packages/crates-io.scm
+++ b/gnu/packages/crates-io.scm
@@ -220,6 +220,26 @@ depending on a large number of #[cfg] parameters.  
Structured like an
     (license (list license:asl2.0
                    license:expat))))
 
+(define-public rust-data-encoding
+  (package
+    (name "rust-data-encoding")
+    (version "2.1.2")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (crate-uri "data-encoding" version))
+        (file-name (string-append name "-" version ".tar.gz"))
+        (sha256
+         (base32
+          "15xd6afhsjl08285piwczrafmckpp8i29padj8v12xhahshprx7l"))))
+    (build-system cargo-build-system)
+    (home-page "https://github.com/ia0/data-encoding";)
+    (synopsis "Efficient and customizable data-encoding functions")
+    (description
+     "This library provides encodings for many different common cases, 
including
+hexadecimal, bas32, and base64.")
+    (license license:expat)))
+
 (define-public rust-discard
   (package
     (name "rust-discard")