text: if(process.env.NODE_ENV !== 'production') {
  	return
  }
  
  var fs = require('fs')
  
  fs.renameSync('public/manifest.json', `public/manifest.${process.argv[2]}.json`)
  
  fs.readFile('public/index.html', 'utf8', function (
  	err,
  	contents
  ) {
  	contents = contents.replace('<meta name="viewport"',
  		`<link rel="manifest" href="manifest.${process.argv[2]}.json"><meta name="viewport"`)
  	fs.writeFile('public/index.html', contents, 'utf8', function (err) {
  		if (err) return console.log(err)
  	})
  })
  