Creating a zip file inside Google Drive with Apps Script

Question

I have a folder in Google Drive folder containing few files. I want to make a Google Apps Script that will zip all files in that folder and create the zip file inside same f

Answer 1

As DocsList has been deprecated, You can use the following code to zip an entire folder containing files and sub-folders and also keep its structure:

var folder = DriveApp.getFolderById('');
var zipped = Utilities.zip(getBlobs(folder, ''), folder.getName()+'.zip');
folder.getParents().next().createFile(zipped);

function getBlobs(rootFolder, path) {
  var blobs = [];
  var files = rootFolder.getFiles();
  while (files.hasNext()) {
    var file = files.next().getBlob();
    file.setName(path+file.getName());
    blobs.push(file);
  }
  var folders = rootFolder.getFolders();
  while (folders.hasNext()) {
    var folder = folders.next();
    var fPath = path+folder.getName()+'/';
    blobs.push(Utilities.newBlob([]).setName(fPath)); //comment/uncomment this line to skip/include empty folders
    blobs = blobs.concat(getBlobs(folder, fPath));
  }
  return blobs;
}

getBlobs function makes an array of all files in the folder and changes each file name to it's relative path to keep structure when became zipped.

To zip a folder containing multiple items with the same name use this getBlob function:

function getBlobs(rootFolder, path) {
  var blobs = [];
  var names = {};
  var files = rootFolder.getFiles();
  while (files.hasNext()) {
    var file = files.next().getBlob();
    var n = file.getName();
    while(names[n]) { n = '_' + n }
    names[n] = true;
    blobs.push(file.setName(path+n));
  }
  names = {};
  var folders = rootFolder.getFolders();
  while (folders.hasNext()) {
    var folder = folders.next();
    var n = folder.getName();
    while(names[n]) { n = '_' + n }
    names[n] = true;
    var fPath = path+n+'/';
    blobs.push(Utilities.newBlob([]).setName(fPath)); //comment/uncomment this line to skip/include empty folders
    blobs = blobs.concat(getBlobs(folder, fPath));
  }
  return blobs;
}