Function WithExitCodeIfNone

errext/exit_code.go:23–34

WithExitCodeIfNone can attach an exit code to the given error, if it doesn't have one already. It won't do anything if the error already had an exit code attached. Similarly, if there is no error (i.e. the given error is nil), it also won't do anything.

(err error, exitCode exitcodes.ExitCode)

// attached. Similarly, if there is no error (i.e. the given error is nil), it
// also won't do anything.
func WithExitCodeIfNone(err error, exitCode exitcodes.ExitCode) error {
	if err == nil {
		// No error, do nothing
		return nil
	}
	var ecerr HasExitCode
	if errors.As(err, &ecerr) {
		// The given error already has an exit code, do nothing
		return err
	}
	return withExitCodeError{err, exitCode}
}

type withExitCodeError struct {
	error