--- /dev/null
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+ <maintainer type="person">
+ <email>lssndrbarbieri@gmail.com</email>
+ <name>Alessandro Barbieri</name>
+ </maintainer>
+ <maintainer type="project">
+ <email>proxy-maint@gentoo.org</email>
+ <name>Proxy Maintainers</name>
+ </maintainer>
+ <upstream>
+ <remote-id type="github">goshrine/whole_history_rating</remote-id>
+ </upstream>
+ <longdescription lang="en">This gem provides a library and executables that take as input as set of games and output a set of skill rankings for the players of those games. The algorithm is a version of Remi Coulom's Whole-History Rating modified to support handicaps, and implemented in Ruby.
+ </longdescription>
+</pkgmetadata>
--- /dev/null
+# Copyright 1999-2019 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+USE_RUBY="ruby24 ruby25 ruby26"
+RUBY_FAKEGEM_TASK_DOC=""
+RUBY_FAKEGEM_EXTRADOC="README.md"
+RUBY_FAKEGEM_GEMSPEC="${PN}.gemspec"
+
+inherit ruby-fakegem
+
+DESCRIPTION="A pure ruby implementation of Remi Coulom's Whole-History Rating algorithm"
+HOMEPAGE="https://github.com/goshrine/${PN}"
+
+LICENSE="MIT"
+SLOT="0"
+KEYWORDS="~amd64"
+IUSE="test"
+RESTRICT="!test? ( test )"
+
+ruby_add_bdepend "
+ test? (
+ dev-ruby/test-unit:2
+ )
+"