Heroku app pinger

ping.rake

# requires "heroku-api" gem

require 'open-uri'
require 'net/http'

# Shorten timeout in Net::HTTP
module Net
    class HTTP
        alias old_initialize initialize
        def initialize(*args)
            old_initialize(*args)
            @read_timeout = 5     # 5 seconds
        end
    end
end

namespace :ping do
  task :go do
    API_KEY = "000000000000000000"
    puts "Connecting to Heroku API"
    heroku = Heroku::API.new(api_key: API_KEY)
    apps = heroku.get_apps.body
    apps.each do |app|
      open_url app
    end
    puts "\n\nCompleted pings"
  end
end

def open_url(app)
  print "\nopening #{app["name"]}".ljust(40, '.')
  begin
    open(app["web_url"].gsub(/^https?\:\/\//, 'https://'))
    print "success"
  rescue OpenURI::HTTPError => the_error
    print "error: #{the_error}"
  rescue OpenURI::HTTPRedirect => the_error
    print "redirect: #{the_error}"
  rescue => error
    print "Failed to open #{app["web_url"]}"
    print " ... #{error}"
  end
end