Function withMarkdownFileParam

shortcuts/markdown/markdown_errors.go:28–37

withMarkdownFileParam tags a validation failure with the originating flag when it does not already name one. Shared input-file helpers such as common.WrapInputStatErrorTyped cannot know which flag supplied the path, so the caller attaches it here to keep the recoverable param on the wire.

(err error, param string)

// common.WrapInputStatErrorTyped cannot know which flag supplied the path, so
// the caller attaches it here to keep the recoverable param on the wire.
func withMarkdownFileParam(err error, param string) error {
	if err == nil || param == "" {
		return err
	}
	var ve *errs.ValidationError
	if errors.As(err, &ve) && ve.Param == "" {
		ve.WithParam(param)
	}
	return err
}

// wrapMarkdownDownloadError classifies a download failure. An already-typed
// error keeps its carrier — type, subtype, code and extensions — so callers see