Function loadExcludeList

src/exclude-models.ts:23–42

(filePath: string = DEFAULT_FILE_PATH)

 * Returns an empty set if the file does not exist.
 */
export function loadExcludeList(filePath: string = DEFAULT_FILE_PATH): Set<string> {
  try {
    const mtimeMs = statSync(filePath).mtimeMs;
    const cached = loadCache.get(filePath);
    if (cached && cached.mtimeMs === mtimeMs) {
      // Copy: callers may mutate the returned set
      return new Set(cached.set);
    }
    const raw = readFileSync(filePath, "utf-8");
    const arr: unknown = JSON.parse(raw);
    const set = Array.isArray(arr)
      ? new Set(arr.filter((x): x is string => typeof x === "string"))
      : new Set<string>();
    loadCache.set(filePath, { mtimeMs, set });
    return new Set(set);
  } catch {
    loadCache.delete(filePath);
    return new Set();
  }
}

/**
 * Save a set of model IDs to disk as a sorted JSON array.