precice: new package (issue #8643) (#8644)

preCICE (Precise Code Interaction Coupling Environment) is a
  coupling library for partitioned multi-physics simulations.
  Partitioned means that preCICE couples existing programs (solvers)
  capable of simulating a subpart of the complete physics involved in
  a simulation.

of-precice: new package

  preCICE adapter for OpenFOAM

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

@@ -0,0 +1,77 @@
+##############################################################################
+# Copyright (c) 2018 Mark Olesen, OpenCFD Ltd.
+#
+# This file was authored by Mark Olesen <mark.olesen@esi-group.com>
+# and is released as part of spack under the LGPL license.
+# LLNL-CODE-647188
+#
+# For details, see https://github.com/spack/spack
+# Please also see the NOTICE and LICENSE files for the LLNL notice and LGPL.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License (as
+# published by the Free Software Foundation) version 2.1, February 1999.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the IMPLIED WARRANTY OF
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the terms and
+# conditions of the GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+##############################################################################
+from spack import *
+
+
+class Precice(CMakePackage):
+    """preCICE (Precise Code Interaction Coupling Environment) is a
+    coupling library for partitioned multi-physics simulations.
+    Partitioned means that preCICE couples existing programs (solvers)
+    capable of simulating a subpart of the complete physics involved in
+    a simulation."""
+
+    homepage = 'https://www.precice.org'
+    gitrepo  = 'https://github.com/precice/precice.git'
+
+    # Skip version 1.1.1 entirely, the cmake was lacking install.
+    version('develop', branch='develop', git=gitrepo)
+
+    variant('mpi', default=True, description='Enable MPI support')
+    variant('petsc', default=False, description='Enable PETSc support')
+    variant('python', default=False, description='Enable Python support')
+    variant('shared', default=True, description='Build shared libraries')
+
+    # Not yet
+#    variant(
+#        'float', default=False,
+#        description='Use single precision for field data exchange')
+#    variant(
+#        'int64',
+#        default=False, description='Use 64-bit integers for indices')
+
+    depends_on('cmake@3.5:', type='build')
+    depends_on('boost@1.60.0:')
+    depends_on('eigen@3.2:')
+    # Implicit via eigen, don't over-constrain: depends_on('libxml2')
+    depends_on('mpi', when='+mpi')
+    depends_on('petsc', when='+petsc')
+    depends_on('python@2.7', when='+python', type=('build', 'run'))
+
+    def cmake_args(self):
+        """Populate cmake arguments for precice."""
+        spec = self.spec
+
+        def variant_bool(feature, on='ON', off='OFF'):
+            """Ternary for spec variant to ON/OFF string"""
+            if feature in spec:
+                return on
+            return off
+
+        cmake_args = [
+            '-DMPI:BOOL=%s' % variant_bool('+mpi'),
+            '-DPETSC:BOOL=%s' % variant_bool('+petsc'),
+            '-DPYTHON:BOOL=%s' % variant_bool('+python'),
+            '-DBUILD_SHARED_LIBS:BOOL=%s' % variant_bool('+shared'),
+        ]
+        return cmake_args