Fancy Debug

fancy_debug.rb

class ActiveSupport::BufferedLogger
  # Print a logger.debug line with colored Name
  # If the msg is not a string, it will inspect it
  # Pass it a block to record the time_taken to yield it
  # Symbols in the msg like :method will be interpolated with block_result.send(:method)
  # eg: fancy_debug("Find Users", "Found :count users") { User.where() }
  def fancy_debug(name, msg = '', &block)
    if block_given?
      start_time = Time.now
      result = yield
      if msg.is_a?(String)
        msg.scan(/:[a-z_]+/) do |method|
          msg.gsub!(":#{method}", result.send(method.to_sym).to_s)
        end
      else
        msg = msg.inspect
      end
      time = ((Time.now-start_time) * 1000).round(2)
      Rails.logger.debug(" \e[31m#{name} (#{"%7.2f" % time}ms)\e[0m #{msg}")
      return result
    else
      Rails.logger.debug(" \e[31m#{name}\e[0m #{msg}")
      return true
    end
  end
end