class SilenceLogger < Rails::Rack::Logger PATH_INFO = 'PATH_INFO'.freeze HTTP_X_SILENCE_LOGGER = 'HTTP_X_SILENCE_LOGGER'.freeze def initialize(app, opts = {}) @app = app @opts = opts @opts[:silenced] ||= [] # Rails introduces something called taggers in the Logger, needs to be initialized super(app) end def call(env) prev_level = Rails.logger.level path_info = env[PATH_INFO] if env[HTTP_X_SILENCE_LOGGER] || @opts[:silenced].include?(path_info) || path_info.start_with?('/logs') Rails.logger.level = Logger::WARN @app.call(env) else super(env) end ensure Rails.logger.level = prev_level end end silenced = [ "/mini-profiler-resources/results".freeze, "/mini-profiler-resources/includes.js".freeze, "/mini-profiler-resources/includes.css".freeze, "/mini-profiler-resources/jquery.tmpl.js".freeze ] Rails.configuration.middleware.swap Rails::Rack::Logger, SilenceLogger, silenced: silenced