class Mixlib::Config::Configurable

Attributes

has_default[R]

Public Class Methods

new(symbol) click to toggle source
# File lib/mixlib/config/configurable.rb, line 22
def initialize(symbol)
  @symbol = symbol
  @default_block = nil
  @has_default = false
  @default_value = nil
  @writes_value = nil
end

Public Instance Methods

default() click to toggle source
# File lib/mixlib/config/configurable.rb, line 64
def default
  if @default_block
    @default_block.call
  else
    @default_value
  end
end
defaults_to(default_value = nil, &block) click to toggle source
# File lib/mixlib/config/configurable.rb, line 32
def defaults_to(default_value = nil, &block)
  @has_default = true
  @default_block = block
  @default_value = default_value
  self
end
get(config) click to toggle source
# File lib/mixlib/config/configurable.rb, line 44
def get(config)
  if config.has_key?(@symbol)
    config[@symbol]
  elsif @default_block
    @default_block.call
  else
    begin
      # Some things cannot be dup'd, and you won't know this till after the fact
      # because all values implement dup
      config[@symbol] = @default_value.dup
    rescue TypeError
      @default_value
    end
  end
end
set(config, value) click to toggle source
# File lib/mixlib/config/configurable.rb, line 60
def set(config, value)
  config[@symbol] = @writes_value ? @writes_value.call(value) : value
end
writes_value(&block) click to toggle source
# File lib/mixlib/config/configurable.rb, line 39
def writes_value(&block)
  @writes_value = block
  self
end