standalone ruby - standalone_app.rb

class Formatter
  COLOR_MAP   = {'DEBUG'=>'0;37', 'INFO'=>'32', 'WARN'=>'33', 'ERROR'=>'31', 'FATAL'=>'31', 'UNKNOWN'=>'37'}
 
  def call(severity, time, progname, msg)
    severity = sprintf("%-5s","#{severity}")
    formatted_time = time.strftime("%Y-%m-%d %H:%M:%S.") << time.usec.to_s[0..2].rjust(3)
    color = COLOR_MAP[severity]
 
    "\033[0;37m#{formatted_time}\033[0m [\033[#{color}m#{severity}\033[0m] #{msg.strip} (pid:#{$$})\n"
  end
end

class Application
  class << self
    attr_accessor :logger

    def logger
      root = File.expand_path '..', __FILE__
      logger ||= ActiveSupport::Logger.new(File.open("#{root}/log/standalone_app.log", 'a'))
      logger.formatter = Formatter.new
      logger
    end
  end
end