zip压缩

gistfile1.rb

    require 'zip/zipfilesystem'
    require 'zip/zip'
    require 'uuidtools'
    # 导出host中的所有附件到一个zip文件中
    def export_attachments
      zip_path = Dir::tmpdir + '/'+ UUID.random_create.to_s + ".zip"
      zip = Zip::ZipFile.open(zip_path, Zip::ZipFile::CREATE)
      self.attachments.each do |attachment|
        zip.add("文件名","源文件路径")
      end
      zip.close
      return zip_path
    end