Update a Configs object's file to import the environment from.
This should only be called after all other command line parsing has been
done. It is because this function take into consideration the priority as
specified in the requirement:
#SPC-configure_env_import_file
Update a Configs object's file to import the environment from.
This should only be called after all other command line parsing has been done. It is because this function take into consideration the priority as specified in the requirement: #SPC-configure_env_import_file