Subject: [bug#43414] [PATCH 2/3] gnu: Add rust-delta-e.

From: Gabriel Arazas <[email-masked]>
Date: Tue, 15 Sep 2020 16:36:27 +0800

* gnu/packages/crates-io.scm (rust-delta-e-0.2): New variable.
---
 gnu/packages/crates-io.scm | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/gnu/packages/crates-io.scm b/gnu/packages/crates-io.scm
index 2f3cead9cf..563daf9ed8 100644
--- a/gnu/packages/crates-io.scm
+++ b/gnu/packages/crates-io.scm
@@ -5444,6 +5444,31 @@ and arithmetic.")
          (base32
           "17giv0n0n1r64z0dahfvkjy3ys517jxyhs8sd9lmgvcljpjyryxa"))))))
 
+(define-public rust-delta-e-0.2
+  (package
+    (name "rust-delta-e")
+    (version "0.2.1")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (crate-uri "delta_e" version))
+        (file-name
+          (string-append name "-" version ".tar.gz"))
+        (sha256
+          (base32
+            "18rxibmi27ark8vj367qm2iqmv5x293l8fm9ang4y2sv3l251sf5"))))
+    (build-system cargo-build-system)
+    (arguments
+      `(#:cargo-inputs (("rust-lab" ,rust-lab-0.7))))
+    (home-page "https://github.com/elliotekj/DeltaE")
+    (synopsis
+      "Pure Rust implementation of the CIEDE2000 algorithm")
+    (description
+      "A Rust implementation of the CIEDE2000 algorithm which is used to
+quantify the differences between two colors. It is entirely based on the work
+of Zachary Schuessler who has written a JavaScript version of the algorithm.")
+    (license license:expat)))
+
 (define-public rust-demo-hack-0.0
   (package
     (name "rust-demo-hack")
-- 
2.28.0