Method LaunchApp

dev/app.go:270–364

(name, dir string)

`

func (pool *AppPool) LaunchApp(name, dir string) (*App, error) {
	tmpDir := filepath.Join(dir, "tmp")
	err := os.MkdirAll(tmpDir, 0755)
	if err != nil {
		return nil, err
	}

	socket := filepath.Join(tmpDir, fmt.Sprintf("puma-dev-%d.sock", os.Getpid()))

	shell := os.Getenv("SHELL")

	if shell == "" {
		fmt.Printf("! SHELL env var not set, using /bin/bash by default")
		shell = "/bin/bash"
	}

	cmd := exec.Command(shell, "-l", "-i", "-c",
		fmt.Sprintf(executionShell, dir, name, socket, name, socket))

	cmd.Dir = dir

	cmd.Env = os.Environ()
	cmd.Env = append(cmd.Env,
		fmt.Sprintf("THREADS=%d", DefaultThreads),
		"WORKERS=0",
		"CONFIG=-",
	)

	stdout, err := cmd.StdoutPipe()
	if err != nil {
		return nil, err
	}

	cmd.Stderr = cmd.Stdout

	err = cmd.Start()
	if err != nil {
		return nil, errors.Context(err, "starting app")
	}

	fmt.Printf("! Booting app '%s' on socket %s\n", name, socket)

	app := &App{
		Name:      name,
		Command:   cmd,
		Events:    pool.Events,
		stdout:    stdout,
		dir:       dir,
		pool:      pool,
		readyChan: make(chan struct{}),
		lastUse:   time.Now(),
	}

	app.eventAdd("booting_app", "socket", socket)

	stat, err := os.Stat(filepath.Join(dir, "public"))
	if err == nil {
		app.Public = stat.IsDir()