github_status_check.rb

#!/usr/bin/env ruby

require 'net/https'
require 'json'
require 'string-irc'
require 'time'

ika_url     = 'http://localhost/privmsg'
ika_port    = PORT
ika_channel = CHANNEL

def get_status(url)
  @url = url
  uri  = URI.parse(@url)

  https             = Net::HTTP.new(uri.host, uri.port )
  https.use_ssl     = true
  https.verify_mode = OpenSSL::SSL::VERIFY_PEER

  https.start {
    response = https.get(uri.path)
    @stat    = JSON.parse(response.body)
  }

  return @stat
end

def create_message(status)
  # @status['created_on'] => "2013-08-01T01:10:39Z"
  @status     = status 
  create_date = Time.parse(@status['created_on']) + Time.zone_offset('JST')

  # "2013-08-01T10:10:39 JST"
  create_date = create_date.strftime("%Y-%m-%dT%H:%M:%S JST")
  message     = "GitHub status:" + @status['status'] + "  \"" + @status['body'] + "\"  created_on " + create_date

  return message
end

def post_status(url, port, message, ika_channel)
  @url         = url
  @port        = port
  @message     = message
  @ika_channel = ika_channel
  uri          = URI.parse(@url)

  http          = Net::HTTP.new(uri.host, @port)
  message_color = StringIrc.new(message).orange

  post_body  = "message=#{message_color}&channel=\##{ika_channel}"
  http.start {
    response = http.post(uri.path, post_body)
  }
end

previous = nil

# while check and post
while true do
  status  = get_status('https://status.github.com/api/last-message.json')
  message = create_message(status)
  if not previous.nil? and previous != message
    post_status(ika_url, ika_port, message, ika_channel)
  end
  previous = message
  sleep 30
end