ppOpen-APPL/FVM: new package. (#15772)

* ppOpen-APPL/FVM: new package.

* copy_tree -> install_tree.

var/spack/repos/builtin/packages/ppopen-appl-fvm/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 *
+import os
+
+
+class PpopenApplFvm(MakefilePackage):
+    """
+    ppOpen-APPL/FVM ia a coupling library that enables weak
+    coupling on various simulation models, such as an
+    atmospheric model and an ocean model, a seismic model
+    and a structure model.  For getting very wide
+    applicability, ppohMATHMP is designed so as that it is
+    independent from grid structure.  Instead of grid
+    structure, ppOpen-APPL/FVM requires a data set
+    called 'mapping table'. Mapping table is composed of
+    a correspondence table of grid indexes between a send
+    model and a receive model and interpolation coefficients.
+    A subroutine for making a mapping table file is provided
+    by ppohMATHMP API.
+
+    Current version of ppohMATHMP is ver.1.0 which targets
+    scalar data exchange.  An exchange code of vector data
+    which requires rotation calculation is under
+    """
+
+    homepage = "http://ppopenhpc.cc.u-tokyo.ac.jp/ppopenhpc/"
+    url = "file://{0}/ppohFVM_0.3.0.tar.gz".format(os.getcwd())
+
+    version('0.3.0', sha256='4e05dd71f4eeda62c9683b7c3069a2537f3c2c7e86ba50a00d4963f41d9cbe29')
+
+    depends_on('mpi')
+    depends_on('metis@:4')
+
+    def edit(self, spec, prefix):
+        fflags = ['-O3']
+        if spec.satisfies('%gcc'):
+            fflags.append('-ffree-line-length-none')
+        makefile_in = FileFilter('Makefile.in')
+        makefile_in.filter(
+            r'^PREFIX *=.*$',
+            'PREFIX = {0}'.format(prefix)
+        )
+        makefile_in.filter(
+            r'^METISDIR *=.*$',
+            'METISDIR = {0}'.format(spec['metis'].prefix.lib)
+        )
+        makefile_in.filter('mpifrtpx', spec['mpi'].mpifc)
+        makefile_in.filter('frtpx', spack_fc)
+        makefile_in.filter('-Kfast', ' '.join(fflags))
+        makefile_in.filter(
+            ',openmp',
+            ' {0}'.format(self.compiler.openmp_flag)
+        )
+
+        def install(self, spec, prefix):
+            make('install')
+            install_tree('examples', prefix.examples)
+            install_tree('doc', prefix.doc)