Add Vesta recipe (#12581)

* Add Vesta recipe

* Break down description to pass lint

* Make changes as maintainers' review

* remove whitespaces

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

@@ -0,0 +1,29 @@
+# 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 Vesta(Package):
+    """VESTA is a 3D visualization program for structural models, volumetric data
+       such as electron/nuclear densities, and crystal morphologies."""
+
+    homepage = "http://jp-minerals.org/vesta"
+    url      = "https://jp-minerals.org/vesta/archives/3.4.6/VESTA-x86_64.tar.bz2"
+
+    version('3.4.6', '1d4651e86193f305831aa5db3dcfe789')
+
+    depends_on('gtkplus@2.1.0:')
+    depends_on('mesa')
+    depends_on('cairo@1.0:')
+
+    conflicts('%gcc@:5.3')
+
+    def setup_environment(self, spack_env, run_env):
+        run_env.prepend_path('PATH', self.prefix)
+        run_env.prepend_path('LD_LIBRARY_PATH', self.prefix)
+
+    def install(self, spec, prefix):
+        install_tree('.', prefix)