cli/error.go

package cli

// StatusError reports an unsuccessful exit by a command.
type StatusError struct {
	Cause      error
	Status     string
	StatusCode int
}

// Error formats the error for printing. If a custom Status is provided,
// it is returned as-is, otherwise it generates a generic error-message
// based on the StatusCode.
func (e StatusError) Error() string {
	if e.Status != "" {
		return e.Status
	}
	if e.Cause != nil {
		return e.Cause.Error()
	}
	// we don't want to set a default message here,
	// some commands might want to be explicit about the error message
	return ""
}

func (e StatusError) Unwrap() error {
	return e.Cause
}