in src/vsts/buildAndReleaseTask/task.js [285:300]
var extractCache = function (targetPath, hash) {
var tarFile = hash + ".tgz";
var tarPath = path.join(targetPath, tarFile);
console.log("Extracting Cache " + tarPath);
var tarOptions = {
sync: true,
file: tarPath,
strict: true,
noMtime: true,
cwd: targetPath
}
tar.extract(tarOptions);
}