Function CheckErr

cobra.go:235–240

CheckErr prints the msg with the prefix 'Error:' and exits with error code 1. If the msg is nil, it does nothing.

(msg interface{})

// CheckErr prints the msg with the prefix 'Error:' and exits with error code 1. If the msg is nil, it does nothing.
func CheckErr(msg interface{}) {
	if msg != nil {
		fmt.Fprintln(os.Stderr, "Error:", msg)
		os.Exit(1)
	}
}

// WriteStringAndCheck writes a string into a buffer, and checks if the error is not nil.
func WriteStringAndCheck(b io.StringWriter, s string) {