Method pruneOrphans

scripts/sync/cache.ts:66–106

()

  }

  async pruneOrphans(): Promise<string[]> {
    const removed: string[] = [];
    const index = await this.readIndex();
    let indexChanged = false;

    for (const key of Object.keys(index)) {
      if (!this.usedKeys.has(key)) {
        const file = path.join(this.cacheDir, `${key}.txt`);
        await unlink(file).catch(() => undefined);
        removed.push(index[key] ?? key);
        delete index[key];
        indexChanged = true;
      }
    }

    if (indexChanged) {
      this.indexCache = index;
      await writeFile(
        this.indexFile(),
        `${JSON.stringify(sortKeys(index), null, 2)}\n`,
        "utf8"
      );
    }

    const expectedKeys = new Set(Object.keys(index));
    const expectedKeys2 = new Set([...expectedKeys].map((k) => `${k}.txt`));
    expectedKeys2.add("_index.json");
    try {
      const entries = await readdir(this.cacheDir);
      for (const entry of entries) {
        if (!expectedKeys2.has(entry)) {
          await unlink(path.join(this.cacheDir, entry)).catch(() => undefined);
          removed.push(entry);
        }
      }
    } catch {
      // cache dir may not exist yet
    }

    return removed;
  }

  getWarnings(): CacheWarning[] {
    return [...this.warnings];