utils.js

function makeZip(output, fileName = 'dist.zip') {
  const path = require('path')
  const fs = require('fs')
  const JSZip = require('jszip');
  const zip = new JSZip()
  const distPath = path.resolve(output)
  const readDir = function (zip, dirPath) {
    // 读取dist下的根文件目录
    const files = fs.readdirSync(dirPath);
    files.forEach(fileName => {
      const fillPath = path.join(dirPath, "./", fileName)
      const file = fs.statSync(fillPath);
      // 如果是文件夹的话需要递归遍历下面的子文件
      if (file.isDirectory()) {
        const dirZip = zip.folder(fileName);
        readDir(dirZip, fillPath);
      } else {
        // 读取每个文件为buffer存到zip中
        zip.file(fileName, fs.readFileSync(fillPath))
      }
    });
  }
  const removeExistedZip = () => {
    const dest = path.join(distPath, './' + fileName)
    if (fs.existsSync(dest)) {
      fs.unlinkSync(dest)
    }
  }
  const zipDir = function () {
    readDir(zip, distPath);
    zip.generateAsync({
      type: "nodebuffer", // 压缩类型
      compression: "DEFLATE", // 压缩算法
      compressionOptions: { // 压缩级别
        level: 9
      }
    }).then(content => {
      const dest = path.join(distPath, './' + fileName)
      removeExistedZip()
      // 把zip包写到硬盘中，这个content现在是一段buffer
      fs.writeFileSync(dest, content);
    });
  }
  removeExistedZip()
  zipDir(distPath)
}

module.exports = {
  makeZip
}