Function linkifyIssueRefs

packages/bumpy/src/core/changelog-github.ts:346–353

* Linkify bare issue/PR references like #123 in text, * but skip references already inside markdown links.

(line: string, serverUrl: string, repo?: string)

 * but skip references already inside markdown links.
 */
function linkifyIssueRefs(line: string, serverUrl: string, repo?: string): string {
  if (!repo) return line;
  // "match what you skip, capture what you want" pattern:
  // the left alternative consumes markdown links so the right alternative only matches bare refs
  return line.replace(/\[.*?\]\(.*?\)|\B#([1-9]\d*)\b/g, (match, issue) =>
    issue ? `[#${issue}](${serverUrl}/${repo}/issues/${issue})` : match,
  );
}

/** Try to detect the repo slug from the gh CLI */
function detectRepo(): string | undefined {