Method: #overwrite_config

Defined in:
lib/easel.rb

#overwrite_config(yaml_filename) ⇒ Object

overwrite_config

Overwrites the $config fields that are set in the YAML file provided on input. TODO: Log (error?) every key in the YAML file that does not exist in $config.



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# File 'lib/easel.rb', line 97

def overwrite_config yaml_filename

  # TODO: Rewrite using pattern matching to allow checking if the
  # yaml_contents.each is one of the base keys. If so, check that the associated
  # value matches the expected nesting. Do that 'no other values' check.

  # TODO: Ensure that the command names are less than 1020 bytes (because I'm
  # setting the max length of a single websocket message to 1024 (minus 'STOP:'))

  begin
    yaml_contents = YAML.load_file $config[:yaml_file]
  rescue Exception => e
    log_fatal "YAML failed to load. Error Message: #{e}"
  end

  def loop_overwrite (config, yaml)
    yaml.each_key { |key|
        if yaml[key].is_a? Hash
          loop_overwrite(config[key.to_sym], yaml[key])
        elsif yaml[key].is_a? Array
            config[key.to_sym] = []
            yaml[key].each { |elmnt|
              element = {}
              loop_overwrite(element, elmnt)
              config[key.to_sym] << element
            }
        else
          config[key.to_sym] = yaml[key]
        end
    }
  end

  loop_overwrite($config, yaml_contents)
end