blink(1) eartuqake.gem plugin to blink by each user's icon color

blink1_notifier.rb

# -*- coding: utf-8 -*-
# blink(1) eartuqake.gem plugin to blink by each user's icon color
#
require 'rubygems'
require 'rmagick'

def getRGB(url)
	@rgb ||= {}
	if (@rgb["#{url}"].nil?)
		image = Magick::Image.read(url).first.resize!(1, 1)
		color = image.get_pixels(0, 0, 1, 1)[0]
		@rgb["#{url}"] = [color.red/256, color.green/256, color.blue/256]
	end
	@rgb["#{url}"]
end

Earthquake.init do
	output do |item|
		next if item.nil? || item['user'].nil? || item['user']['profile_image_url'].nil?
		url = item['user']['profile_image_url']
		cmd = 'blink1-tool -q --rgb %d,%d,%d'
		EM.defer(lambda { system cmd % getRGB(url) })
	end
end