From 9502ae80df7e7cfa5fa6f06728a766b28e8f3998 Mon Sep 17 00:00:00 2001
From: Christopher Baines <mail@cbaines.net>
Date: Wed, 1 Aug 2018 07:39:42 +0100
Subject: gnu: Add ruby-psych.

Required for ruby-jeweler.

* gnu/packages/ruby.scm (ruby-psych): New variable.
---
 gnu/packages/ruby.scm | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/gnu/packages/ruby.scm b/gnu/packages/ruby.scm
index 6e63c6b91e..59510e7163 100644
--- a/gnu/packages/ruby.scm
+++ b/gnu/packages/ruby.scm
@@ -4474,6 +4474,34 @@ invocation, and source and documentation browsing.")
     (home-page "https://pryrepl.org")
     (license license:expat)))
 
+(define-public ruby-psych
+  (package
+    (name "ruby-psych")
+    (version "3.0.2")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (rubygems-uri "psych" version))
+       (sha256
+        (base32
+         "0g9yrzzfza5yjfnn4pkykr71fhpayahvimvyyv8xi3i34a03v9xg"))))
+    (build-system ruby-build-system)
+    (native-inputs
+     `(("bundler" ,bundler)
+       ("ruby-rake-compiler" ,ruby-rake-compiler)))
+    (synopsis
+     "Psych is a YAML parser and emitter. Psych leverages libyaml[http://pyyaml.org/wiki/LibYAML]
+for its YAML parsing and emitting capabilities. In addition to wrapping libyaml,
+Psych also knows how to serialize and de-serialize most Ruby objects to and from the YAML format.
+")
+    (description
+     "Psych is a YAML parser and emitter.  Psych leverages libyaml[http://pyyaml.org/wiki/LibYAML]
+for its YAML parsing and emitting capabilities.  In addition to wrapping libyaml,
+Psych also knows how to serialize and de-serialize most Ruby objects to and from the YAML format.
+")
+    (home-page "https://github.com/ruby/psych")
+    (license license:expat)))
+
 (define-public ruby-guard
   (package
     (name "ruby-guard")
-- 
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