docs: def get_database_config_file():
      """Get the absolute path to the database configuration file."""
      cfg = get_project_configuration()
      if 'dbconfig' in cfg:
          if os.path.isfile(cfg['dbconfig']):
              return cfg['dbconfig']
          else:
              logging.info("File '%s' was not found. Adjust 'dbconfig' in your "
                           "~/.hwrtrc file.",
                           cfg['dbconfig'])
      else:
          logging.info("No database connection file found. "
                       "Specify 'dbconfig' in your ~/.hwrtrc file.")
      return None