Unzipping a tar.gz archive using Google Apps Script

Having trouble unzipping the file available at [https://wwwinfo.mfcr.cz/ares/ares_vreo_all.tar.gz][1] into my Google Drive folder.

I've successfully downloaded the file using a Google script, but I'm experiencing issues with the unzip process. Could someone kindly assist me with this?

Thank you in advance!

Update: Below is the code snippet:

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);
}

However, I encountered the following error:

Exception: Could not decompress gzip.

I suspect it's not decompressing as expected, so I'm seeking alternative solutions. If anyone has any insights, please do share! [1]:

javascriptgoogle-apps-script

Answer №1

If you want to decompress a file, the Utilities Class can help you with that task.

To decompress a gzip file, simply use the ungzip() method:

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

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

// Decompress the data.
var uncompressedData = Utilities.ungzip(gzipData);

This example is provided in the official guide found at documentation.

If you're interested, you can also check out the answer posted here which explains how to utilize the Utilities Class in combination with Google Drive.

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