streams/unzip

20.js

var request = require('request');
var zlib = require('zlib');
var fs = require('fs');
var tar = require('tar');
var tarstream = request('https://github.com/dscape/p/tarball/master');
var filestream = fs.createWriteStream(__dirname + '/node_modules/p.tar.gz');

tarstream.on('end', function () { console.log("download done"); });

tarstream
  .pipe(zlib.Gunzip())
  .pipe(tar.Extract({ path: __dirname + '/node_modules/' }))
  .on('entry', function(entry) {
    if (entry.type === 'File') {
      console.log('[unpack] `' + entry.path + '`');
    }
  })
  .on('end', function () { console.log("unpack done"); });

tarstream.pipe(filestream);