VUE项目打包自动更新版本号

let fs = require('fs')
const dayjs = require('dayjs')

const getPackageJson = () => {
  let data = fs.readFileSync('./package.json') //fs读取文件
  return JSON.parse(data) //转换为json对象
}
let packageData = getPackageJson()
const updateVersion = () => {
  let version = packageData.version.split(".");
  version[version.length - 1]++;
  packageData.version = version.join(".");
  packageData.lastBuildTime = dayjs().format('YYYY-MM-DD HH:mm:ss');//最后打包时间
}
updateVersion()
fs.writeFile('./package.json', JSON.stringify(packageData, null, '\t'), err => {
  if (err) {
    console.log('写入失败', err)
  } else {
    console.log('写入成功 ' + packageData.version)
  }
})

改一下packjson里面，build定义的内容

"scripts": {
	"serve": "vue-cli-service serve",
	"build": "node ./buildVersion.js && vue-cli-service build"
}

执行npm run build后自动更新version和lastBuildTime