# File lib/docker/util.rb, line 205
  def file_hash_from_paths(local_paths)
    local_paths.each_with_object({}) do |local_path, file_hash|
      unless File.exist?(local_path)
        raise ArgumentError, "#{local_path} does not exist."
      end

      basename = File.basename(local_path)
      if File.directory?(local_path)
        tar = create_dir_tar(local_path)
        file_hash[basename] = {
          content: tar.read,
          permissions: filesystem_permissions(local_path)
        }
        tar.close
        FileUtils.rm(tar.path)
      else
        file_hash[basename] = {
          content: File.read(local_path, mode: 'rb'),
          permissions: filesystem_permissions(local_path)
        }
      end
    end
  end