func RunTip()

in internal/version/gotip.go [20:51]

28 lines of code
9 McCabe index (conditional complexity)


func RunTip() {
	log.SetFlags(0)

	root, err := goroot("gotip")
	if err != nil {
		log.Fatalf("gotip: %v", err)
	}

	if len(os.Args) > 1 && os.Args[1] == "download" {
		switch len(os.Args) {
		case 2:
			if err := installTip(root, ""); err != nil {
				log.Fatalf("gotip: %v", err)
			}
		case 3:
			if err := installTip(root, os.Args[2]); err != nil {
				log.Fatalf("gotip: %v", err)
			}
		default:
			log.Fatalf("gotip: usage: gotip download [CL number | branch name]")
		}
		log.Printf("Success. You may now run 'gotip'!")
		os.Exit(0)
	}

	gobin := filepath.Join(root, "bin", "go"+exe())
	if _, err := os.Stat(gobin); err != nil {
		log.Fatalf("gotip: not downloaded. Run 'gotip download' to install to %v", root)
	}

	runGo(root)
}