Generate New Service Worker Version

generate-new-service-worker-version.js

// https://mydevhack.com/post/automatically-generate-a-new-service-worker-version
const fs = require('fs')

// Create new version
const version = new Date().getTime()

// Write new version to service worker
fs.readFile('sw.js', 'utf8', function (err,data) {
  if (err) {
    return console.log(err)
  }
  var result = data.replace(/var CACHE_NAME = .+/g, `var CACHE_NAME = 'v-${version}'`)

  fs.writeFile('sw.js', result, 'utf8', function (err) {
    if (err) return console.log(err)
  })
})