error.go

// error.go

// WrapErr returns a corev1.Error for the given error and msg.
func WrapErr(err error, msg string) error {
	if err == nil {
		return nil
	}
	e := &Error{Message: fmt.Sprintf("%s: %s", msg, err.Error())}
	e.populateStack()
	return e
}

// E is a useful func for instantiating corev1.Errors.
func E(args ...interface{}) error {
	if len(args) == 0 {
		panic("call to E with no arguments")
	}
	e := &Error{}
	b := new(bytes.Buffer)
	for _, arg := range args {
		switch arg := arg.(type) {
		case string:
			pad(b, ": ")
			b.WriteString(arg)
		case int32:
			e.Code = arg
		case int:
			e.Code = int32(arg)
		case error:
			pad(b, ": ")
			b.WriteString(arg.Error())
		}
	}
	e.Message = b.String()
	e.populateStack()
	return e
}