Can we zip folders?

[gildas-lormeau]

Does zip.js support deflating folders? In Chrome, you can drag folders onto a window/DOM element, and access the contents of that folder. It would be great to be able to deflate a dragged folder. (see #226)

[gildas-lormeau]

Here's an example of how to achieve this with zip.js

<input type=file multiple webkitdirectory id="files">
<script src="https://cdn.jsdelivr.net/npm/@zip.js/zip.js@2.2.22/dist/zip.min.js"></script>
<script>
  files.onchange = async event => {
    document.body.innerHTML = "";  
    const zipWriter = new zip.ZipWriter(new zip.Data64URIWriter("application/zip"));
    await Promise.all(Array.from(event.target.files).map(async file => {
      await zipWriter.add(file.webkitRelativePath, new zip.BlobReader(file));
      document.body.innerHTML += " - " + file.webkitRelativePath + "<br>";
    }));
    document.body.innerHTML += "<br>";
    const link = document.createElement("a");
    link.href = await zipWriter.close();
    link.download = "test.zip"; 
    link.textContent = "Download";
    document.body.appendChild(link);
  }
</script>