Rails logger format string configuration

Did some digging and found this post in the RubyOnRails Talk google group.

So I modified it a little bit and put it at the end of my environment.rb:

module ActiveSupport
  class BufferedLogger
    def add(severity, message = nil, progname = nil, &block)
      return if @level > severity
      message = (message || (block && block.call) || progname).to_s

      level = {
        0 => "DEBUG",
        1 => "INFO",
        2 => "WARN",
        3 => "ERROR",
        4 => "FATAL"
      }[severity] || "U"

      message = "[%s: %s #%d] %s" % [level,
                                     Time.now.strftime("%m%d %H:%M:%S"),
                                     $$,
                                     message]

      message = "#{message}\n" unless message[-1] == ?\n
      buffer << message
      auto_flush
      message
    end
  end
end

This results in a format string like this:

[DEBUG: 0121 10:35:26 #57078] Rendered layouts/_header (0.00089)

For rails 4 apps, I've put together a simple gem that not only adds support for basic tagging like time stamp and log level, but even adds color to the log messages themselves.

https://github.com/phallguy/shog

Rails logger format string configuration

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