added a build script using spack

Author: nicolaslg

build_spack.sh

@@ -0,0 +1,25 @@
+#==========================================
+# First get a spack release
+git clone --depth=1 -b v0.20.1  https://github.com/spack/spack.git
+#==========================================
+# can be mandatory if you have already used back on your computer
+# delete the .spack n the home of the user 
+#==========================================
+git clone https://github.com/LIHPC-Computational-Geometry/spack_recipes.git
+cp ./spack_recipes/config/packages.yaml ./spack/etc/spack/
+. ./spack/share/spack/setup-env.sh
+spack repo add ./spack_recipes/meshing
+spack repo add ./spack_recipes/meshing_supersede
+spack compiler find
+spack external find cmake
+#==========================================
+git clone [email protected]:LIHPC-Computational-Geometry/magix3d.git
+#==========================================
+spack spec magix3d ^vtk-maillage~opengl2+qt~mpi ^hdf5~mpi ^cgns~mpi ^mesquite~mpi
+spack dev-build -d ./magix3d [email protected] ^vtk-maillage~opengl2+qt~mpi ^hdf5~mpi ^cgns~mpi ^mesquite~mpi
+#==========================================
+# testing the install
+#export PYTHONPATH=spack/opt/spack/gmds/lib:$PYTHONPATH
+#spack load py-pytest
+#pytest gmds/pygmds/tst gmds/test_samples
+#==========================================