module Raven class Logger LOG_PREFIX = "** [Raven] " [ :fatal, :error, :warn, :info, :debug, ].each do |level| define_method level do |*args, &block| msg = args[0] # Block-level default args is a 1.9 feature msg ||= block.call if block logger = Raven.configuration[:logger] logger.send(level, "#{LOG_PREFIX}#{msg}") if logger end end end end