ADD: templating to fix hierarchical module for users

templates/user_hierachical_paths.lua

@@ -0,0 +1,20 @@
+{% extends "modules/modulefile.lua" %}
+{% block footer %}
+ 
+local user_module_root= pathJoin(os.getenv("SPACK_ROOT"), "../user", os.getenv("USER"), "spack-install/modulefiles")
+
+{% if 'mpi' in provides %}
+local user_projection= "{{ spec.architecture }}/{{ spec.name }}/{{ version_part }}/{{ spec.compiler.name }}/{{ spec.compiler.version }}"
+{% elif 'compiler' in provides %}
+local user_projection= "{{ spec.architecture }}/{{ spec.name }}/{{ spec.version }}"
+{% endif %}
+
+
+if user_projection then
+local user_path= pathJoin(user_module_root, user_projection)
+  if isDir(user_path) then
+prepend_path("MODULEPATH", user_path, ":")
+  end
+end
+
+{% endblock %}