コード例 #1
0
func WriteToTar(tarWriter *tar.Writer, file *TarFile) error {
	hdr, err := tar.FileInfoHeader(file.Info, "")
	if err != nil {
		return fmt.Errorf("Unable to get tar FileInfoHeader of tar file '%s', error: %s", file.FileName, err.Error())
	}

	hdr.Name = file.FileName

	if hdr.Xattrs == nil {
		hdr.Xattrs = map[string]string{}
	}
	hdr.Xattrs["SIZE"] = fmt.Sprintf("%d", file.Info.Size())

	if file.IsOnlyFile {
		hdr.Xattrs["SINGLE_FILE_ONLY"] = "1"
	}

	err = tarWriter.WriteHeader(hdr)
	if err != nil {
		return fmt.Errorf("Unable to write tar header for file '%s', error: %s", file.FileName, err.Error())
	}

	if !file.HasContent() {
		return nil
	}

	defer file.ContentReadCloser.Close()
	_, err = io_throttler.CopyThrottled(io_throttler.DefaultIOThrottlingBandwidth, tarWriter, file.ContentReadCloser)
	return err
}
コード例 #2
0
func (f *fileTarReceiver) OnEntry(tarHeader *tar.Header, tarFileReader io.Reader) error {
	fullDestPath := f.file

	parentDir := filepath.Dir(fullDestPath)
	err := os.MkdirAll(parentDir, os.FileMode(tarHeader.Mode))
	if err != nil {
		return fmt.Errorf("Unable to MkDirAll '%s', error: %s", parentDir, err.Error())
	}

	file, err := os.OpenFile(fullDestPath, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, os.FileMode(tarHeader.Mode))
	if err != nil {
		return fmt.Errorf("Unable to open file '%s', error: %s", fullDestPath, err.Error())
	}

	defer func() {
		file.Close()
		os.Chtimes(fullDestPath, tarHeader.AccessTime, tarHeader.ModTime)
	}()

	_, err = io_throttler.CopyThrottled(io_throttler.DefaultIOThrottlingBandwidth, file, tarFileReader)
	if err != nil {
		return fmt.Errorf("Unable to copy stream to file '%s', error: %s", fullDestPath, err.Error())
	}

	return nil
}
コード例 #3
0
func (w *writerTarReceiver) OnEntry(tarHeader *tar.Header, tarFileReader io.Reader) error {
	if w.alreadyHaveFile {
		return fmt.Errorf("Memory TarReceiver can only process a single file")
	}
	w.alreadyHaveFile = true

	_, err := io_throttler.CopyThrottled(io_throttler.DefaultIOThrottlingBandwidth, w.writer, tarFileReader)
	if err != nil {
		return fmt.Errorf("Unable to copy stream to buffer, error: %s", err.Error())
	}

	return nil
}
コード例 #4
0
func (d *dirTarReceiver) OnEntry(tarHeader *tar.Header, tarFileReader io.Reader) error {
	relativePath := tarHeader.Name

	if tarHeader.FileInfo().IsDir() {
		fullDestPath := filepath.Join(d.dir, relativePath)
		defer os.Chtimes(fullDestPath, tarHeader.AccessTime, tarHeader.ModTime)

		return os.MkdirAll(fullDestPath, os.FileMode(tarHeader.Mode))
	} else {
		fullDestPath := filepath.Join(d.dir, relativePath)
		if val, ok := tarHeader.Xattrs["SINGLE_FILE_ONLY"]; ok && val == "1" {
			fullDestPath = d.dir
		}

		parentDir := filepath.Dir(fullDestPath)
		err := os.MkdirAll(parentDir, os.FileMode(tarHeader.Mode))
		if err != nil {
			return fmt.Errorf("Unable to MkDirAll '%s', error: %s", parentDir, err.Error())
		}

		file, err := os.OpenFile(fullDestPath, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, os.FileMode(tarHeader.Mode))
		if err != nil {
			return fmt.Errorf("Unable to open file '%s', error: %s", fullDestPath, err.Error())
		}

		defer func() {
			file.Close()
			os.Chtimes(fullDestPath, tarHeader.AccessTime, tarHeader.ModTime)
		}()

		_, err = io_throttler.CopyThrottled(io_throttler.DefaultIOThrottlingBandwidth, file, tarFileReader)
		if err != nil {
			return fmt.Errorf("Unable to copy stream to file '%s', error: %s", fullDestPath, err.Error())
		}

		return nil
	}
}
コード例 #5
0
func (s *sendTarHandler) Read(reader io.Reader) error {
	_, err := io_throttler.CopyThrottled(io_throttler.DefaultIOThrottlingBandwidth, s.writer, reader)
	return err
}