Method sync

packages/service-worker/worker/src/driver.ts:1091–1118

* Synchronize the existing state to the underlying database.

()

   * Synchronize the existing state to the underlying database.
   */
  private async sync(): Promise<void> {
    const table = await this.controlTable;

    // Construct a serializable map of hashes to manifests.
    const manifests: ManifestMap = {};
    this.versions.forEach((version, hash) => {
      manifests[hash] = version.manifest;
    });

    // Construct a serializable map of client ids to version hashes.
    const assignments: ClientAssignments = {};
    this.clientVersionMap.forEach((hash, clientId) => {
      assignments[clientId] = hash;
    });

    // Record the latest entry. Since this is a sync which is necessarily happening after
    // initialization, latestHash should always be valid.
    const latest: LatestEntry = {
      latest: this.latestHash!,
    };

    // Synchronize all of these.
    await Promise.all([
      table.write('manifests', manifests),
      table.write('assignments', assignments),
      table.write('latest', latest),
    ]);
  }

  async cleanupCaches(): Promise<void> {
    try {