beautiful colorized messages.

Colorized Logger

module ActiveSupport
  class BufferedLogger
    module Severity
      COLORIZE = 10
    end
    include Severity
    def add(severity, message = nil, progname = nil, &block)
      return if @level > severity
      message = (message || (block && block.call) || progname).to_s
      message = "\e[0;45m#{message}\e[0;0m\n" if severity == 10
      # If a newline is necessary then create a new message ending with a newline.
      # Ensures that the original message is not mutated.
      message = "#{message}\n" unless message[-1] == ?\n
      buffer << message
      auto_flush
      message
    end
    
    for severity in Severity.constants
          class_eval <<-EOT, __FILE__, __LINE__ + 1
            def #{severity.downcase}(message = nil, progname = nil, &block) # def debug(message = nil, progname = nil, &block)
              add(#{severity}, message, progname, &block)                   #   add(DEBUG, message, progname, &block)
            end                                                             # end

            def #{severity.downcase}?                                       # def debug?
              #{severity} >= @level                                         #   DEBUG >= @level
            end                                                             # end
          EOT
        end
  end
end