画像保存スクリプト

save_image.rb

def save_image(url)
  # ready filepath
  fileName = File.basename(url)
  dirName = "/var/tmp/hoge/"
  filePath = dirName + fileName

  # create folder if not exist
  FileUtils.mkdir_p(dirName) unless FileTest.exist?(dirName)

  # write image adata
  open(filePath, 'wb') do |output|
    open(url) do |data|
      output.write(data.read)
    end
  end
end