WWDC ticket monitor

gistfile1.rb

require 'pagerduty'
require 'nokogiri'
require 'open-uri'

URL_TO_MONITOR = 'https://developer.apple.com/wwdc/'
PAGERDUTY_SERVICE_KEY = 'xxx'

pagerduty = Pagerduty.new(PAGERDUTY_SERVICE_KEY)
previous_html = nil

while true;
  sleep 5
  puts Time.now.to_s

  begin
    html = open(URL_TO_MONITOR).read
  rescue Exception => e
    puts "\n\n****\nEXCEPTION FETCHING: #{e}\n****\n\n"
    next
  end

  if previous_html && html != previous_html
    begin
      puts "\n\n****\nALERT TRIGGERED\n****\n\n"
      pagerduty.trigger "The WWDC page changed!"
    rescue Exception => e
      puts "\n\n****\nEXCEPTION TRIGGERING: #{e}\n****\n\n"
      next
    end
  end

  previous_html = html
end