前端打包版本号自增

1.新建sysInfo.json文件

{
"version": "20240307@1.0.1"

}

2.新建addVersion.js文件,打包时执行,将版本号写入sysInfo.json文件

//npm run build打包前执行此段代码

let fs = require('fs')


//返回package的json数据

function getPackageJson() {

  let data = fs.readFileSync('./src/assets/json/sysInfo.json') //fs读取文件

  return JSON.parse(data) //转换为json对象

}


let packageData = getPackageJson() //获取package的json

let arr = packageData.version.split('@') //切割后的版本号数组

let date = new Date()

const year = date.getFullYear()

let month = date.getMonth() + 1

let day = date.getDate()
month = month > 9 ? month : '0' + month
day = day < 10 ? '0' + day : day

let today = `${year}${month}${day}`

let verarr = arr[1].split('.')

verarr[2] = parseInt(verarr[2]) + 1
packageData.version = today + '@' + verarr.join('.') //转换为以"."分割的字符串

//用packageData覆盖package.json内容

fs.writeFile('./src/assets/json/sysInfo.json', JSON.stringify(packageData, null, '\t'), err => {

  console.log(err)

})

3.package.json中配置

  "scripts": {
"dev": "vite",
"serve": "vite",
"build": "node ./src/addVersion.js && vite build",

    ....

4.使用

import sysInfo from '@/assets/json/sysInfo.json'