Add new package: chrony (#18912)

var/spack/repos/builtin/packages/chrony/package.py

@@ -0,0 +1,26 @@
+# Copyright 2013-2020 Lawrence Livermore National Security, LLC and other
+# Spack Project Developers. See the top-level COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+from spack import *
+
+
+class Chrony(AutotoolsPackage):
+    """chrony is a versatile implementation of the Network Time
+    Protocol (NTP). It can synchronise the system clock with NTP
+    servers, reference clocks(e.g. GPS receiver), and manual
+    input using wristwatch and keyboard."""
+
+    homepage = "https://chrony.tuxfamily.org/"
+    url      = "https://github.com/mlichvar/chrony/archive/3.5.1.tar.gz"
+
+    version('3.5.1', sha256='881085b944a14853402e1c5cff4de5d815ff104ec6e12eea51c12e42f32f71bd')
+    version('3.5',   sha256='145a270fe4df42931f175e37dd3771a7e714122ae361921a4b93082e648a08c5')
+    version('3.4',   sha256='85fbe433f5a3ee961a20c47a72367760b074448587a9e2d3a6788a95750ed77e')
+    version('3.3',   sha256='0dd7323b5ed9e3208236c1b39fcabf2ad03469fa07ac516ba9c682206133f66d')
+
+    depends_on('ruby-asciidoctor')
+
+    def setup_run_environment(self, env):
+        env.prepend_path('PATH', self.prefix.sbin)