javascript - unzip tar.gz archive in google script

Question

I am trying to unzip the file: [https://wwwinfo.mfcr.cz/ares/ares_vreo_all.tar.gz][1] into google drive folder.

So, I have downloaded the file using google script, but can not properly unzip it. Could you, please, help me with it?

Thank you in advance!

Update: Here is my code

function updateDB() {
  var url = 'https://wwwinfo.mfcr.cz/ares/ares_vreo_all.tar.gz';
  var blob = UrlFetchApp.fetch(url).getBlob();
  var folder = DriveApp.getFolderById('fileid');
  var archive = folder.createFile(blob);
  unzip(archive);
}

function unzip(archive){
  var zipblob = archive.getBlob();
  var uncompressed1 = Utilities.ungzip(zipblob);
}

So I receive the following error:

Exception: Could not decompress gzip.

I guess it does not decompress normally, that is why I am asking if you would know different way [1]: https://wwwinfo.mfcr.cz/ares/ares_vreo_all.tar.gz

Answer 1

You can use the Utilities Class to unzip your File.

To unzip the gzip you have to call the ungzip() method:

var textBlob = Utilities.newBlob("Some text to compress using gzip compression");

// Create the compressed blob.
var gzipBlob = Utilities.gzip(textBlob, "text.gz");

// Uncompress the data.
var uncompressedBlob = Utilities.ungzip(gzipBlob);

That's the example provided in the official documentation.

You can also take a look at the answer given to this question that also explains how to use the Utilities Class in combination with Google Drive.