r-commonmark: new package at 1.7 (#11049)

var/spack/repos/builtin/packages/r-commonmark/package.py

+# Copyright 2013-2019 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 RCommonmark(RPackage):
+    """commonmark: CommonMark and Github Markdown Rendering in R"""
+
+    homepage = "https://cran.r-project.org/package=commonmark"
+    url      = "https://cran.r-project.org/src/contrib/commonmark_1.7.tar.gz"
+    list_url = "https://cran.r-project.org/src/contrib/Archive/commonmark/"
+
+    version('1.7', sha256='d14a767a3ea9778d6165f44f980dd257423ca6043926e3cd8f664f7171f89108')