Function jsonDeepEqual

src/installer/targets/shared.ts:138–155

(a: unknown, b: unknown)

 * re-writing (and emitting a confusing "Updated" log line).
 */
export function jsonDeepEqual(a: unknown, b: unknown): boolean {
  if (a === b) return true;
  if (typeof a !== typeof b) return false;
  if (a === null || b === null) return a === b;
  if (typeof a !== 'object') return false;
  if (Array.isArray(a) !== Array.isArray(b)) return false;
  if (Array.isArray(a) && Array.isArray(b)) {
    if (a.length !== b.length) return false;
    return a.every((v, i) => jsonDeepEqual(v, b[i]));
  }
  const ao = a as Record<string, unknown>;
  const bo = b as Record<string, unknown>;
  const ak = Object.keys(ao).sort();
  const bk = Object.keys(bo).sort();
  if (ak.length !== bk.length) return false;
  if (!ak.every((k, i) => k === bk[i])) return false;
  return ak.every((k) => jsonDeepEqual(ao[k], bo[k]));
}

/**
 * Replace or append a marker-delimited section in a markdown-ish file.