Function maybeExtract

sentiment/data.js:172–186

* Get extracted files. * * If the files are already extracted, this will be a no-op. * * @param {string} sourcePath Source zip file path. * @param {string} destDir Extraction destination directory.

(sourcePath, destDir)

 * @param {string} destDir Extraction destination directory.
 */
async function maybeExtract(sourcePath, destDir) {
  return new Promise((resolve, reject) => {
    if (fs.existsSync(destDir)) {
      return resolve();
    }
    console.log(`Extracting: ${sourcePath} --> ${destDir}`);
    extract(sourcePath, {dir: destDir}, err => {
      if (err == null) {
        return resolve();
      } else {
        return reject(err);
      }
    });
  });
}

const ZIP_SUFFIX = '.zip';