github-webhook.rb

#!/usr/bin/env ruby

# Gems needed : sinatra, jenkins_api_client
# This file is a light web-server using Sinatra that responds to Github events.
# The purpose of this file is to run jobs when some events are triggered in Github.

require 'sinatra'
require 'json'
require 'net/http'
require 'jenkins_api_client'

enable :logging
@client = JenkinsApi::Client.new(:server_ip => 'jenkins.beneple.com',
         :username => 'Bot-Beneple', :password => '6ac553f6723d4f313c508e18681458ee')

set :bind, '0.0.0.0'
set :port, 4567

#@client.job.build "beneple-test-master"

post '/event_handler' do
  @payload = JSON.parse(request.body.read)
  case request.env['HTTP_X_GITHUB_EVENT']
  when "pull_request"
    if @payload["action"] == "closed" && @payload["pull_request"]["merged"]
      puts "A pull request was merged! A deployment to the development environment should start now..."
      deploy_master_to_dev_box(@payload["pull_request"])
      clean_branch_deployment(@payload["pull_request"])
    end
  end
end

helpers do
  def deploy_master_to_dev_box(pr)
	puts "Deploying master branch to the dev box after merge of Pull Request : #{pr['title']}"
	@client.job.build("beneple-test-master")
  end

  def clean_branch_deployment(pr)
	puts "Cleaning dev box from a deployed branch of Pull Request : #{pr['title']}"
	Dir.chdir("/home/jenkins/beneple") do
		system "git pull origin master"
  		system "cap dev deploy:clean[#{pr['head']['ref']}]"
	end

  end
end