build.js

const http = require('http')
const spawn = require('child_process').spawn
const createHandler = require('github-webhook-handler')
const handler = createHandler({ path: '/pushCode', secret: 'xrr2016' })
http
  .createServer(function(req, res) {
    handler(req, res, function(err) {
      res.statusCode = 404
      res.end('no such location')
    })
  })
  .listen(9090)

handler.on('error', function(err) {
  console.error('Error:', err.message)
})

handler.on('push', function(event) {
  console.log(
    'Received a push event for %s to %s',
    event.payload.repository.name,
    event.payload.ref
  )
  rumCommand('sh', ['./build.sh'], function(txt) {
    console.log(txt)
  })
})

function rumCommand(cmd, args, callback) {
  var child = spawn(cmd, args)
  var response = ''
  child.stdout.on('data', function(buffer) {
    response += buffer.toString()
  })
  child.stdout.on('end', function() {
    callback(response)
  })
}