06/12: gnu: Add ghc-descriptive.

[guix-commits]

samplet pushed a commit to branch master
in repository guix.

commit a60056b5d309c76c0d88a962f106a158c1b38914
Author: Brian Leung <address@hidden>
Date:   Fri Jun 21 03:44:27 2019 +0200

    gnu: Add ghc-descriptive.
    
    * gnu/packages/haskell.scm (ghc-descriptive): New variable.
---
 gnu/packages/haskell.scm | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/gnu/packages/haskell.scm b/gnu/packages/haskell.scm
index 2aaa058..fe860fb 100644
--- a/gnu/packages/haskell.scm
+++ b/gnu/packages/haskell.scm
@@ -11727,6 +11727,38 @@ recursive scanning and copying of directories, working 
with temporary
 files/directories, and more.")
     (license license:bsd-3)))
 
+(define-public ghc-descriptive
+  (package
+    (name "ghc-descriptive")
+    (version "0.9.5")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append
+             "https://hackage.haskell.org/package/descriptive/descriptive-";
+             version
+             ".tar.gz"))
+       (sha256
+        (base32
+         "0y5693zm2kvqjilybbmrcv1g6n6x2p6zjgi0k0axjw1sdhh1g237"))))
+    (build-system haskell-build-system)
+    (inputs
+     `(("ghc-aeson" ,ghc-aeson)
+       ("ghc-bifunctors" ,ghc-bifunctors)
+       ("ghc-scientific" ,ghc-scientific)
+       ("ghc-vector" ,ghc-vector)))
+    (native-inputs
+     `(("ghc-hunit" ,ghc-hunit)
+       ("ghc-hspec" ,ghc-hspec)))
+    (home-page
+     "https://github.com/chrisdone/descriptive";)
+    (synopsis
+     "Self-describing consumers/parsers: forms, cmd-line args, JSON, etc.")
+    (description
+     "This package provides datatypes and functions for creating consumers
+and parsers with useful semantics.")
+    (license license:bsd-3)))
+
 (define-public ghc-stylish-haskell
   (package
     (name "ghc-stylish-haskell")