Function maybeDownloadAndExtract

sentiment/data.js:196–204

* Get the IMDB data through file downloading and extraction. * * If the files already exist on the local file system, the download and/or * extraction steps will be skipped.

()

 * extraction steps will be skipped.
 */
async function maybeDownloadAndExtract() {
  const zipDownloadDest = path.join(os.tmpdir(), path.basename(DATA_ZIP_URL));
  await maybeDownload(DATA_ZIP_URL, zipDownloadDest);

  const zipExtractDir =
      zipDownloadDest.slice(0, zipDownloadDest.length - ZIP_SUFFIX.length);
  await maybeExtract(zipDownloadDest, zipExtractDir);
  return zipExtractDir;
}

/**
 * Load data by downloading and extracting files if necessary.