Function Start

server/server.go:23–114

Start starts the esm.sh server

()

// Start starts the esm.sh server
func Start() {
	var cfile string
	var err error

	flag.StringVar(&cfile, "config", "config.json", "the config file path")
	flag.Parse()

	if existsFile(cfile) {
		config, err = LoadConfig(cfile)
		if err != nil {
			fmt.Println(err.Error())
			os.Exit(1)
		}
		if DEBUG {
			fmt.Printf("%s [info] Config loaded from %s\n", time.Now().Format("2006-01-02 15:04:05"), cfile)
		}
	}

	if DEBUG {
		config.LogLevel = "debug"
	} else {
		// disable log color in release build
		os.Setenv("NO_COLOR", "1")
	}

	logger, err := log.New(fmt.Sprintf("file:%s?buffer=64k&fileDateFormat=20060102&term", path.Join(config.LogDir, "server.log")))
	if err != nil {
		fmt.Println("failed to initialize logger:", err)
		os.Exit(1)
	}
	if os.Getenv("ESMDIR") != "" {
		logger.Term(false)
	}
	logger.SetLevelByName(config.LogLevel)

	accessLogger, err := log.New(fmt.Sprintf("file:%s?buffer=1m&fileDateFormat=20060102", path.Join(config.LogDir, "access.log")))
	if err != nil {
		logger.Fatalf("failed to initialize access logger: %v", err)
	}

	// initialize storage
	esmStorage, err := storage.New(&config.Storage)
	if err != nil {
		logger.Fatalf("failed to initialize storage(%s): %v", config.Storage.Type, err)
	}
	logger.Debugf("storage initialized, type: %s, endpoint: %s", config.Storage.Type, config.Storage.Endpoint)

	// load node runtime in background
	go getNodeRuntimeJS("fs")

	// add middlewares
	rex.Use(
		pprofRouter(),
		cors(config.CorsAllowOrigins),
		rex.Header("Server", "esm.sh"),
		rex.Logger(logger),
		rex.Optional(rex.AccessLogger(accessLogger), config.AccessLog),
		rex.Optional(rex.Compress(), config.Compress),