New package: MGIS (#10273)

* add the tfel package

* fix the tfel package

* fix the tfel package

* fix the tfel package

* Taking Adam J. Steward' remarks into account

* fixes trailing white spaces

* Update description

* Update dependencies following @adamjstewart adices

* Style fixes

* Style fixes

* Add java optional support

* add the maintainers attribute (following @alalazo advice), disable interface not selected (following @adamjstewart advice)

* flake8 fixes

* Fix Cast3M and python-bindings support. Python detection is made compatible with cmake'FindPythonLibs module (at least how it is used in TFEL)

* Style fixes

* Style fixes

* Fix test on python version

* Follow @adamjstewart advices: code is much cleaner and readable

* Small fix

* Small fix

* Add comment

* Small fix in cmake option

* try again (trying to overcome Travis CI unstable build process)

* Add support for the MFrontGenericInterfaceSupport project (MGIS)

* Style fixes

* Package documentation update

* Package documentation update

* Fix a typo thanks to Andreas Baumbach review

* Follow Adam J. Stewart advices

* Fix type

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

@@ -0,0 +1,73 @@
+# Copyright 2013-2018 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 Mgis(CMakePackage):
+    """
+    The MFrontGenericInterfaceSupport project (MGIS) provides helper
+    functions for various solvers to interact with behaviour written
+    using MFront generic interface.
+
+    MGIS is written in C++.
+    Bindings are provided for C and fortran (2003).
+    A FEniCS binding is also available.
+    """
+
+    homepage = "https://thelfer.github.io/mgis/web/index.html"
+    url      = "https://github.com/thelfer/MFrontGenericInterfaceSupport/archive/MFrontGenericInterfaceSupport-1.0.tar.gz"
+    git      = "https://github.com/thelfer/MFrontGenericInterfaceSupport.git"
+    maintainers = ['thelfer']
+
+    # development branches
+    version("master", branch="master")
+    version("rliv-1.0", branch="rliv-1.0")
+
+    # released version
+    version('1.0', sha256='279c98da00fa6855edf29c2b8f8bad6e7732298dc62ef67d028d6bbeaac043b3')
+
+    # variants
+    variant('c', default=True,
+            description='Enables c bindings')
+    variant('fortran', default=True,
+            description='Enables fortran bindings')
+    variant('python', default=True,
+            description='Enables python bindings')
+    variant('build_type', default='Release',
+            description='The build type to build',
+            values=('Debug', 'Release'))
+
+    # dependencies
+    depends_on('tfel@3.2.0', when="@1.0")
+    depends_on('tfel@rliv-3.2', when="@rliv-3.2")
+    depends_on('tfel@master', when="@master")
+    depends_on('boost+python', when='+python')
+    extends('python', when='+python')
+
+    def cmake_args(self):
+
+        args = []
+
+        for i in ['c', 'fortran', 'python']:
+            if '+' + i  in self.spec:
+                args.append("-Denable-{0}-bindings=ON".format(i))
+            else:
+                args.append("-Denable-{0}-bindings=OFF".format(i))
+
+        if '+python' in self.spec:
+            # adding path to python
+            python = self.spec['python']
+            args.append('-DPYTHON_LIBRARY={0}'.
+                        format(python.libs[0]))
+            args.append('-DPYTHON_INCLUDE_DIR={0}'.
+                        format(python.headers.directories[0]))
+            args.append('-DPython_ADDITIONAL_VERSIONS={0}'.
+                        format(python.version.up_to(2)))
+            # adding path to boost
+            args.append('-DBOOST_ROOT={0}'.
+                        format(self.spec['boost'].prefix))
+
+        return args