lib/helpers/zip.js
function zip (name, destination, source, files) {
  if (files && files.length > 0) {
    const filename = path.join(destination, name)
    const output = fs.createWriteStream(filename)

    const archive = archiver('zip', { store: true })
    archive.on('error', (err) => { throw err })
    archive.pipe(output)

    files.forEach((f) => {
      archive.append(fs.createReadStream(path.join(source, f)), { name: f })
    })

    archive.finalize()

    return filename
  }
}
function zip (name, destination, source, files) {
  if (files && files.length > 0) {
    const filename = path.join(destination, name)
    const output = fs.createWriteStream(filename)

    const archive = archiver('zip', { store: true })
    archive.on('error', (err) => { throw err })
    archive.pipe(output)

    files.forEach((f) => {
      archive.append(fs.createReadStream(path.join(source, f)), { name: f })
    })

    archive.finalize()

    return filename
  }
}
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