add new package : flink (#14446)

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

+# 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 Flink(Package):
+    """
+    Apache Flink is an open source stream processing framework with
+    powerful stream- and batch-processing capabilities.
+    """
+
+    homepage = "https://flink.apache.org/"
+    url      = "http://archive.apache.org/dist/flink/flink-1.9.1/flink-1.9.1-bin-scala_2.11.tgz"
+
+    version('1.9.1', sha256='f69de344cd593e92f8261e19ae8a47b3910e9a70a7cd1ccfb1ecd1ff000b93ea')
+    version('1.9.0', sha256='a2245f68309e94ed54d86a680232a518aed9c5ea030bcc0b298bc8f27165eeb7')
+    version('1.8.3', sha256='1ba90e99f70ad7e2583d48d1404d1c09e327e8fb8fa716b1823e427464cc8dc0')
+    version('1.8.2', sha256='1a315f4f1fab9d651702d177b1741439ac98e6d06e9e13f9d410b34441eeda1c')
+    version('1.8.1', sha256='4fc0d0f163174ec43e160fdf21a91674979b978793e60361e2fce5dddba4ddfa')
+
+    depends_on('java@8:', type='run')
+
+    def url_for_version(self, version):
+        url = "http://archive.apache.org/dist/flink/flink-{0}/flink-{0}-bin-scala_2.11.tgz"
+        return url.format(version)
+
+    def install(self, spec, prefix):
+        install_tree('.', prefix)