From fc228bd62373498ef764cc77ea572539ac11002e Mon Sep 17 00:00:00 2001
From: Christopher Baines <mail@cbaines.net>
Date: Mon, 5 Feb 2018 11:16:21 +0000
Subject: gnu: Add ruby-hamster.

---
 gnu/packages/ruby.scm | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/gnu/packages/ruby.scm b/gnu/packages/ruby.scm
index 3afe766a28..72646953c0 100644
--- a/gnu/packages/ruby.scm
+++ b/gnu/packages/ruby.scm
@@ -9233,3 +9233,27 @@ way.")
     "open child process with handles on pid, stdin, stdout, and stderr: manage child processes and their io handles easily.")
   (home-page "https://github.com/ahoward/open4")
   (license #f)))
+
+(define-public ruby-hamster
+  (package
+  (name "ruby-hamster")
+  (version "3.0.0")
+  (source
+    (origin
+      (method url-fetch)
+      (uri (rubygems-uri "hamster" version))
+      (sha256
+        (base32
+          "1n1lsh96vnyc1pnzyd30f9prcsclmvmkdb3nm5aahnyizyiy6lar"))))
+  (build-system ruby-build-system)
+  (arguments
+   '(#:tests? #f))
+  (propagated-inputs
+    `(("ruby-concurrent" ,ruby-concurrent)))
+  (synopsis
+    "Efficient, immutable, thread-safe collection classes for Ruby")
+  (description
+    "Efficient, immutable, thread-safe collection classes for Ruby")
+  (home-page
+    "https://github.com/hamstergem/hamster")
+  (license license:expat)))
-- 
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