Module: Extlib::ColorfulLogger

Defined in:
lib/colorful-logger.rb

Constant Summary collapse

@@colors = 
{
  fatal:  :red,
  error:  :red,
  warn:   :yellow,
  info:   :white,
  debug:  :cyan,
  custom: :magenta
}
@@color_values = 
{
  black:   30,
  red:     31,
  green:   32,
  yellow:  33,
  blue:    34,
  magenta: 35,
  cyan:    36,
  white:   37
}

Class Method Summary collapse

Class Method Details

.extended(base) ⇒ Object 



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# File 'lib/colorful-logger.rb', line 29

def self.extended(base)
  metaclass = (class << base; self; end)
  metaclass::Levels.each_pair do |name, number|
    color = @@color_values[@@colors[name]]
    class_eval <<-RUBY, __FILE__, __LINE__

    def #{name}(message = nil)
      if #{number} >= level
        message = block_given? ? yield : message
        self << "\033[0;\#{#{color}}m%s\033[0m" % message
      end
      self
    end

    def #{name}!(message = nil)
      if #{number} >= level
        message = block_given? ? yield : message
        self << "\033[0;\#{#{color}}m%s\033[0m" % message
        flush
      end
      self
    end
    RUBY
  end
end