Githubにcontributeしていないとメール通知するスクリプト(http://qiita.com/smison/items/8e25c6dd84c64f0711c3)

contribution_notice.rb

#! /usr/local/bin/ruby

# === parameters ================================
USER_NAME      = 'XXXXX'       # Gtihubのユーザ名
MAIL_ADDR_FROM = 'XXXXX@XXXXX' # 通知メールのfrom
MAIL_ADDR_TO   = 'XXXXX@XXXXX' # 通知メールのto

# === requires ==================================
require 'nokogiri'
require 'open-uri'
require 'mail'

# === methods ===================================
def last_contribute_date parsed_svg
  last_rect_day = parsed_svg.search('rect.day').last
  last_rect_day["data-date"]
end

def last_contribute_count parsed_svg
  last_rect_day = parsed_svg.search('rect.day').last
  last_rect_day["data-count"]
end

def contributed_today? svg
   parsed_svg    = Nokogiri::HTML(svg)

   if last_contribute_date(parsed_svg) != Time.now.strftime('%Y-%m-%d')
     return false
   else
     if last_contribute_count(parsed_svg) == '0'
       return false
     end
   end

   true
end

def sendmail from_addr, to_addr, subject, body
  mail            = Mail.new
  mail['from']    = from_addr
  mail['to']      = to_addr
  mail['subject'] = subject
  mail['body']    = body
  mail.deliver
end

# === main ======================================
svg = open("https://github.com/users/#{USER_NAME}/contributions")

unless contributed_today?(svg)
  sendmail(MAIL_ADDR_FROM,
           MAIL_ADDR_TO,
           "Github contribution notice",
           "You haven't contributed to Github yet today!")
end