Simple logger module

logger_module

# Example
# class Foo
#  include CaptainLogger
#  config_logger ::file => "foo.log"
# end

module CaptainLogger

    def self.included(base)
      class << base
        attr_accessor :logger
      end
      base.send :extend, ClassMethods
    end

    module ClassMethods
      def config_logger(opts={})
        opts = {:level => "info", :keep => "weekly"}.merge(opts)
        log_file = File.open("log/#{opts[:file]}", "w")
        log_file.sync = true
        self.logger ||= ::Logger.new(log_file)
        self.logger.formatter ||= ::Logger::Formatter.new
        self.logger.formatter = proc do |severity, datetime, progname, msg|
          "[#{severity}] #{datetime.strftime("%Y-%m-%d %H:%M")}: #{msg}\n"
        end
        self.logger.level = eval("::Logger::#{opts[:level].upcase}")
      end
    end

end