JSZip (https://stuk.github.io/jszip/) use for updating a zip archive. If the archive contains FName, its content will be updated, otherwise new item FName will be added

JSZip library use.js

var JSZip = require("jszip");
var fs = require('fs');

module.exports = {
  
  // Replaces or adds 'replacementFname' into archive 'zipFname' with 
  // content obtained from 'contentFname' file. 
  // Creates new file 'updated.zip' in the current directory
  // for example :
  //      xxx.updatezip('test_suite.zip', 'scenario.xml', 'rooster/scenarios/rooster.xml')
  updatezip: function(zipFname, contentFname, replacementFname){

    var scenario = new Promise((resolve, reject) =>{
      fs.readFile(contentFname, (err, data)=>{
        if(err) reject(err)
        else resolve(data)
      })
    });

    var suite = new Promise((resolve, reject) =>{
      fs.readFile(zipFname, (err, data)=>{
        if(err) reject(err)
        else resolve(data)
      })
    });

    suite.then(data => {
      return JSZip.loadAsync(data);
    }).then(zip => {
      //zip.remove('rooster/scenarios/rooster.xml');
      return zip.file(replacementFname, scenario);
    }).then(zip => {
      return zip.generateAsync({type:"nodebuffer"})
    }).then(content => {
      fs.writeFileSync('./updated.zip', content);
      console.log("done!");
    }).catch(err => {
      console.log(err);
    });
};