Function unzip

javascript/selenium-webdriver/io/zip.js:163–198

* Asynchronously unzips an archive file. * * @param {string} src path to the source file to unzip. * @param {string} dst path to the destination directory. * @return {!Promise } a promise that will resolve with `dst` once the * archive has been unzipped.

(src, dst)

 *     archive has been unzipped.
 */
function unzip(src, dst) {
  return load(src).then((zip) => {
    const promisedDirs = new Map()
    const promises = []

    zip.z_.forEach((relPath, file) => {
      let p
      if (file.dir) {
        p = createDir(relPath)
      } else {
        let dirname = path.dirname(relPath)
        if (dirname === '.') {
          p = writeFile(relPath, file)
        } else {
          p = createDir(dirname).then(() => writeFile(relPath, file))
        }
      }
      promises.push(p)
    })

    return Promise.all(promises).then(() => dst)

    function createDir(dir) {
      let p = promisedDirs.get(dir)
      if (!p) {
        p = io.mkdirp(path.join(dst, dir))
        promisedDirs.set(dir, p)
      }
      return p
    }

    function writeFile(relPath, file) {
      return file.async('nodebuffer').then((buffer) => io.write(path.join(dst, relPath), buffer))
    }
  })
}

// PUBLIC API
module.exports = { Zip, load, unzip }