func Run()

in internal/version/version.go [35:55]

• 17 lines of code
• 6 McCabe index (conditional complexity)

func Run(version string) {
	log.SetFlags(0)

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

	if len(os.Args) == 2 && os.Args[1] == "download" {
		if err := install(root, version); err != nil {
			log.Fatalf("%s: download failed: %v", version, err)
		}
		os.Exit(0)
	}

	if _, err := os.Stat(filepath.Join(root, unpackedOkay)); err != nil {
		log.Fatalf("%s: not downloaded. Run '%s download' to install to %v", version, version, root)
	}

	runGo(root)
}