twitter_growl.rb

require 'net/http'
require 'uri'
require 'growl'
require 'twitter'

topics = ["mactkg", "たまご"]

# code from http://d.hatena.ne.jp/gan2/20080531/1212227507
def save_icon(filename, url)
  filename = filename + '.' + File.basename(url).split('.')[1]
  path = File.expand_path(File.dirname($0))+'/icon/'+filename
  open(path, 'wb') do |file|
    file.puts Net::HTTP.get_response(URI.parse(url)).body
  end
  return path
end

# twitter api configuring
client = Twitter::Streaming::Client.new do |config|
  config.consumer_key        = "^~^"
  config.consumer_secret     = "^~^"
  config.access_token        = "^~^"
  config.access_token_secret = "^~^"
end

puts "ready"
puts "query:#{topics}"

# filetering
client.filter(:track => topics.join(",")) do |object|
  if object.is_a?(Twitter::Tweet) then
    uri = object.user.profile_image_uri :normal
    path = save_icon object.user.screen_name, uri
    puts "#{object.user.name} said \"#{object.text}\""
    Growl.notify object.text,:icon => path,:title=> object.user.name
  end
end