Class: BigBrother::Configuration

Inherits:
Object
  • Object
show all
Defined in:
lib/big_brother/configuration.rb

Constant Summary collapse

GLOBAL_CONFIG_KEY = 
'_big_brother'

Class Method Summary collapse

Class Method Details

._apply_defaults(defaults_hash, settings_hash) ⇒ Object 



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# File 'lib/big_brother/configuration.rb', line 28

def self._apply_defaults(defaults_hash, settings_hash)
  return settings_hash unless defaults_hash
  defaults_hash.merge(settings_hash) do |key, oldval, newval|
    oldval.is_a?(Hash) && newval.is_a?(Hash) ? _apply_defaults(oldval, newval) : newval
  end
end

._deeply_symbolize_keys(value) ⇒ Object 



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# File 'lib/big_brother/configuration.rb', line 15

def self._deeply_symbolize_keys(value)
  if value.is_a?(Hash)
    value.inject({}) do |symbolized_hash, (hash_key, hash_value)|
      symbolized_hash[hash_key.to_sym] = _deeply_symbolize_keys(hash_value)
      symbolized_hash
    end
  elsif value.is_a?(Array)
    value.map { |item| _deeply_symbolize_keys(item) }
  else
    value
  end
end

.from_file(config_file) ⇒ Object 



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# File 'lib/big_brother/configuration.rb', line 5

def self.from_file(config_file)
  config = YAML.load_file(config_file)
  defaults = config.delete(GLOBAL_CONFIG_KEY)

  config.inject({}) do |clusters, (cluster_name, cluster_values)|
    cluster_details = _apply_defaults(defaults, cluster_values)
    clusters.merge(cluster_name => Cluster.new(cluster_name, _deeply_symbolize_keys(cluster_details)))
  end
end