# TempfileEnsureCloser.new.begin do |tmp|
#   gz = tmp.create(["tmp", ".gz"]) # File instance
#   get_object(gz)
#   csv = tmp.create(["tmp", ".csv"])
#   system("gunzip -c #{gz.path} > #{csv.path}")
# end #=> close and unlink all temp file
class TempfileEnsureCloser
  def initialize
    @tempfiles = []
  end

  def begin
    yield self
  ensure
    @tempfiles.each do |t|
      t.close
      File.unlink(t.path) if File.exists?(t.path)
    end
  end

  def create(*args)
    t = Tempfile.create(*args)
    @tempfiles << t
    t
  end
end