filtered zip

filtered zip.rb

 FILTER_FILES_REGEX = [
    /Thumbs\.db/, # omit OSX thumbs
    /\~\$/,       # omit temp office files
    /\/\z/,       # omit directories
  ]

  def download_file_edition_and_add_to_zip(file_edition, dst_zip)
    open(file_edition.download_url) do |tf|
      if file_edition.download_file_name.ends_with?('.zip')
        Rails.logger.debug "Unpacking file edition: #{file_edition.download_file_name}"
        Zippy.open(tf.path) do |src_zip|
          src_zip.paths
                .delete_if {|path| FILTER_FILES_REGEX.any?{|regex| regex === path} }
                .each      {|path| dst_zip[path] = src_zip[path] }
        end
      else
        dst_zip[file_edition.download_file_name] = tf.read
      end
    end
  end