save_image.rb

require "date"

Earthquake.init do
  _ = config[:save_image] ||= {}
  _[:dir] ||= File.expand_path("./image", config[:dir])
  FileUtils.mkdir_p(_[:dir]) unless Dir.exist? _[:dir]

  command :save_image do |m|
    tweet = twitter.status(m[1])
    media = tweet["entities"]["media"]
    if media.blank?
      puts "Image not found".c(43)
      next []
    end

    if confirm("save images of '#{tweet["user"]["screen_name"]}: #{tweet["text"]}'")
      async do
        media.each do |md|
          next if md["type"] != "photo" || md["display_url"] !~ /\Apic.twitter.com/
          dir = config[:save_image][:dir]
          dt = DateTime.now.strftime("%Y%m%d-%H%M%S")
          bn = File.basename(md["media_url"])
          fn = %Q|#{dir}/#{dt}-#{bn}|
          open(md["media_url"], "rb") do |i|
            File.open(fn, "wb") do |f|
             f.write i.read
            end
          end
        end
      end
    end
  end

end