earthquake.gem plugin: reply and RT growl notifer

reply_rt_notifier.rb

# -*- coding: utf-8 -*-
# reply_rt_notifier plugin
#

require "fileutils"
require "digest/md5"

Earthquake.init do
  dir = File.join(File.dirname(__FILE__), "userimage")
  output do |item|
    next if item.nil? || item["user"].nil? || !(/@#{twitter.info["screen_name"]}[\s:]/ =~ item["text"])
    begin
      image_url = item["user"]["profile_image_url"]
      next unless image_url
      name = Digest::MD5.hexdigest image_url
      path = File.join(dir, name.chars.first, name)
      FileUtils.mkdir_p(File.dirname(path))
      arg = {
        "-t" => "#{(/^RT /=~item["text"] ? "Retweet" : "Mention" )}: #{item["user"]["screen_name"]}",
        "-m" => item["text"],
        "--image" => path,
        "--sticky" => "" # comment out this line if you want off "Growl sticky"
      }
      EM.defer(
        lambda {
          return path if File.exists?(path)
          open(path, "w"){|f|
            f.print open(image_url).read
          }
          path
        },
        lambda {|path|
          system('growlnotify', *arg.to_a.flatten)
        }
      )
    end
  end
end