if err != nil {
				Exitf("cannot reopen %s: %v", h.pn, err)
			}
			defer f.Close()
			if _, err := f.Seek(h.off, 0); err != nil {
				Exitf("cannot seek %s: %v", h.pn, err)
			}

			w, err := os.Create(dst)
			if err != nil {
				Exitf("cannot create %s: %v", dst, err)
			}
			if _, err := io.CopyN(w, f, h.length); err != nil {
				Exitf("cannot write %s: %v", dst, err)
			}

            if [ "${GO_OUT}" == "" ]; then
                echo "Could not guess the correct output directory to use."
                exit 1
            fi
            ;;
        h)
            usage
            exit
            ;;
        ?)
            usage
            exit
            ;;
    esac
done

if [ -z "${GO_OUT}" ]; then

// directly. TestMain runs in the main goroutine and can do whatever setup
// and teardown is necessary around a call to m.Run. m.Run will return an exit
// code that may be passed to os.Exit. If TestMain returns, the test wrapper
// will pass the result of m.Run to os.Exit itself.
//
// When TestMain is called, flag.Parse has not been run. If TestMain depends on

	if hex.DecodedLen(len(val)) > maxLen {
		Exitf("-B option too long (max %d digits): %s", maxLen, ov)
	}

	b, err := hex.DecodeString(val)
	if err != nil {
		if err == hex.ErrLength {
			Exitf("-B argument must have even number of digits: %s", ov)
		}
		if inv, ok := err.(hex.InvalidByteError); ok {
			Exitf("-B argument contains invalid hex digit %c: %s", byte(inv), ov)
		}
		Exitf("-B argument contains invalid hex: %s", ov)

		// actually print that if it panics, exits, or terminates abnormally,
		// so we print it here. We can't always check whether it was printed
		// because some tests need stdout to be a terminal (golang.org/issue/34791),
		// not a pipe.
		// TODO(golang.org/issue/29062): tests that exit with status 0 without
		// printing a final result should fail.
		prefix := ""

		gotool, err := testenv.GoTool()
		if err != nil {
			fmt.Fprintln(os.Stderr, "locating go tool: ", err)
			os.Exit(2)
		}

		goEnv := func(name string) string {
			out, err := exec.Command(gotool, "env", name).CombinedOutput()
			if err != nil {
				fmt.Fprintf(os.Stderr, "go env %s: %v\n%s", name, err, out)
				os.Exit(2)
			}
			return strings.TrimSpace(string(out))
		}
		testGOROOT = goEnv("GOROOT")

	// we have not yet started cycle number gcTrigger.n (relative
	// to work.cycles).
	gcTriggerCycle
)

// test reports whether the trigger condition is satisfied, meaning
// that the exit condition for the _GCoff phase has been met. The exit
// condition should be tested when allocating.
func (t gcTrigger) test() bool {
	if !memstats.enablegc || panicking.Load() != 0 || gcphase != _GCoff {
		return false
	}
	switch t.kind {

	kubeletFlags := options.NewKubeletFlags()

	kubeletConfig, err := options.NewKubeletConfiguration()
	// programmer error
	if err != nil {
		klog.ErrorS(err, "Failed to create a new kubelet configuration")
		os.Exit(1)
	}

	cmd := &cobra.Command{
		Use: componentKubelet,
		Long: `The kubelet is the primary "node agent" that runs on each
node. It can register the node with the apiserver using one of: the hostname; a flag to

	"testing"
	"testing/fstest"
	"time"
)

func TestMain(m *testing.M) {
	if Getenv("GO_OS_TEST_DRAIN_STDIN") == "1" {
		Stdout.Close()
		io.Copy(io.Discard, Stdin)
		Exit(0)
	}

	log.SetFlags(log.LstdFlags | log.Lshortfile)

	Exit(m.Run())
}

var dot = []string{
	"dir_unix.go",
	"env.go",
	"error.go",
	"file.go",
	"os_test.go",
	"types.go",
	"stat_darwin.go",
	"stat_linux.go",
}

	if os.Getenv("GO_WANT_HELPER_PROCESS") != "1" {
		return
	}
	defer os.Exit(0)
	fd3 := os.NewFile(3, "ephemeral-port-listener")
	ln, err := net.FileListener(fd3)
	if err != nil {
		panic(err)
	}
	mux := NewServeMux()
	mux.Handle("/", FileServer(Dir(os.TempDir())))
	mux.HandleFunc("/quit", func(ResponseWriter, *Request) {
		os.Exit(0)
	})
	s := &Server{Handler: mux}
	err = s.Serve(ln)