Function wrapMarkdownDownloadError

shortcuts/markdown/markdown_errors.go:45–53

wrapMarkdownDownloadError classifies a download failure. An already-typed error keeps its carrier — type, subtype, code and extensions — so callers see the upstream classification: a validation problem passes through verbatim, any other problem gains a "download failed" prefix for operation context.

(err error)

// An untyped error becomes a network transport error carrying the original as
// its cause.
func wrapMarkdownDownloadError(err error) error {
	if p, ok := errs.ProblemOf(err); ok {
		if p.Category != errs.CategoryValidation {
			p.Message = "download failed: " + p.Message
		}
		return err
	}
	return errs.NewNetworkError(errs.SubtypeNetworkTransport, "download failed: %s", err).WithCause(err)
}