require "optparse" desc "Print out all defined routes in match order, with names. Target specific controller with -c option, or grep routes using -g option" task routes: :environment do all_routes = Rails.application.routes.routes require "action_dispatch/routing/inspector" inspector = ActionDispatch::Routing::RoutesInspector.new(all_routes) routes_filter = nil OptionParser.new do |opts| opts.banner = "Usage: rails routes [options]" Rake.application.standard_rake_options.each { |args| opts.on(*args) } opts.on("-c CONTROLLER") do |controller| routes_filter = { controller: controller } end opts.on("-g PATTERN") do |pattern| routes_filter = pattern end end.parse!(ARGV.reject { |x| x == "routes" }) puts inspector.format(ActionDispatch::Routing::ConsoleFormatter.new, routes_filter) exit 0 # ensure extra arguments aren't interpreted as Rake tasks end