Function formatUnknownMessage

apps/cli/src/main.ts:1561–1584

(cause: unknown)

 * parent are dropped.
 */
const formatUnknownMessage = (cause: unknown): string => {
  const messages: string[] = [];
  const seen = new Set<unknown>();
  let current: unknown = cause;
  while (current !== null && current !== undefined && !seen.has(current)) {
    seen.add(current);
    const message = ownMessage(current);
    if (message.length > 0 && !messages.some((existing) => existing.includes(message))) {
      messages.push(message);
    }
    current =
      typeof current === "object" && "cause" in current
        ? (current as { cause: unknown }).cause
        : undefined;
  }
  if (messages.length === 0) {
    return typeof cause === "string"
      ? cause
      : cause instanceof Error
        ? cause.message
        : String(cause);
  }
  return messages.join("\ncaused by: ");
};

const readCliLogLevel = (argv: ReadonlyArray<string>): string | undefined => {
  for (let index = 0; index < argv.length; index += 1) {