code: function createZip (targetZipPath, currentFolder, filesToInclude, done) {
    const args = ['-FS', targetZipPath].concat(filesToInclude)
    const startTime = Date.now()
    trace(`Calling: zip ${args.join(' ')}`)
    const child = childProcess.spawn('zip', args, {
      cwd: currentFolder,
      stdio: [ 'ignore', 'ignore', 'ignore' ]
    })
    child.on('error', (err) => {
      error(`Error: please verify that <zip> is installed on your system`)
      error(err.toString())
    })
    child.on('close', (code, signal) => {
      const elapsed = Math.floor(Date.now() - startTime)
      debug(`Zip exited with code ${code} in ${elapsed}ms`)
      done(code === 0 ? null : new Error(`Error creating ZIP file ${targetZipPath}`))
    })
  }
docs: This function uses the Unix ZIP command, which supports "updating" a ZIP file In the future it could also delegate to 7zip on Windows