node/deps/npm/node_modules/fstream-npm/example/ig-tar.js

// this will show what ends up in the fstream-npm package
var P = require('fstream-ignore')
var tar = require('tar')
function f (entry) {
  return entry.basename !== '.git'
}

new P({ path: './', type: 'Directory', Directory: true, filter: f })
  .on('package', function (p) {
    console.error('package', p)
  })
  .on('ignoreFile', function (e) {
    console.error('ignoreFile', e)
  })
  .on('entry', function (e) {
    console.error(e.constructor.name, e.path.substr(e.root.path.length + 1))
  })
  .pipe(tar.Pack())
  .pipe(process.stdout)