require "fileutils" require "optparse" require "action_dispatch" require "rails" require "rails/dev_caching" module Rails class Server < ::Rack::Server class Options DEFAULT_PID_PATH = File.expand_path("tmp/pids/server.pid").freeze def parse!(args) args, options = args.dup, {} option_parser(options).parse! args options[:log_stdout] = options[:daemonize].blank? && (options[:environment] || Rails.env) == "development" options[:server] = args.shift options end private def option_parser(options) OptionParser.new do |opts| opts.banner = "Usage: rails server [puma, thin etc] [options]" opts.on("-p", "--port=port", Integer, "Runs Rails on the specified port.", "Default: 3000") { |v| options[:Port] = v } opts.on("-b", "--binding=IP", String, "Binds Rails to the specified IP.", "Default: localhost") { |v| options[:Host] = v } opts.on("-c", "--config=file", String, "Uses a custom rackup configuration.") { |v| options[:config] = v } opts.on("-d", "--daemon", "Runs server as a Daemon.") { options[:daemonize] = true } opts.on("-e", "--environment=name", String, "Specifies the environment to run this server under (test/development/production).", "Default: development") { |v| options[:environment] = v } opts.on("-P", "--pid=pid", String, "Specifies the PID file.", "Default: tmp/pids/server.pid") { |v| options[:pid] = v } opts.on("-C", "--[no-]dev-caching", "Specifies whether to perform caching in development.", "true or false") { |v| options[:caching] = v } opts.separator "" opts.on("-h", "--help", "Shows this help message.") { puts opts; exit } end end end def initialize(*) super set_environment end # TODO: this is no longer required but we keep it for the moment to support older config.ru files. def app @app ||= begin app = super app.respond_to?(:to_app) ? app.to_app : app end end def opt_parser Options.new end def set_environment ENV["RAILS_ENV"] ||= options[:environment] end def start print_boot_information trap(:INT) { exit } create_tmp_directories setup_dev_caching log_to_stdout if options[:log_stdout] super ensure # The '-h' option calls exit before @options is set. # If we call 'options' with it unset, we get double help banners. puts "Exiting" unless @options && options[:daemonize] end def middleware Hash.new([]) end def default_options super.merge( Port: ENV.fetch("PORT", 3000).to_i, Host: ENV.fetch("HOST", "localhost").dup, DoNotReverseLookup: true, environment: (ENV["RAILS_ENV"] || ENV["RACK_ENV"] || "development").dup, daemonize: false, caching: nil, pid: Options::DEFAULT_PID_PATH, restart_cmd: restart_command) end private def setup_dev_caching if options[:environment] == "development" Rails::DevCaching.enable_by_argument(options[:caching]) end end def print_boot_information url = "#{options[:SSLEnable] ? 'https' : 'http'}://#{options[:Host]}:#{options[:Port]}" puts "=> Booting #{ActiveSupport::Inflector.demodulize(server)}" puts "=> Rails #{Rails.version} application starting in #{Rails.env} on #{url}" puts "=> Run `rails server -h` for more startup options" end def create_tmp_directories %w(cache pids sockets).each do |dir_to_make| FileUtils.mkdir_p(File.join(Rails.root, "tmp", dir_to_make)) end end def log_to_stdout wrapped_app # touch the app so the logger is set up console = ActiveSupport::Logger.new(STDOUT) console.formatter = Rails.logger.formatter console.level = Rails.logger.level unless ActiveSupport::Logger.logger_outputs_to?(Rails.logger, STDOUT) Rails.logger.extend(ActiveSupport::Logger.broadcast(console)) end end def restart_command "bin/rails server #{ARGV.join(' ')}" end end end