Node Cookbook - Third Edition

How to do it...

In our index.js file, let's begin by requiring the dependencies we'll be using to create various streams:

const zlib = require('zlib') const map = require('tar-map-stream') 

Let's imagine we want to take the gzipped tarball of the very first available version of Node, and change all the file paths in that tarball, as well as altering the uname (owner user) and mtime (modified time) fields of each file.

Now let's create some streams we'll be using to do that:

const decompress = zlib.createGunzip() const whoami = process.env.USER || process.env.USERNAME const convert = map((header) => {   header.uname = whoami   header.mtime = new Date()   header.name = header.name.replace('node-v0.1.100', 'edon-v0.0.0')   return header }) const ...