| 43 | } |
| 44 | |
| 45 | func (fr *fastReader) Reset(r io.Reader) error { |
| 46 | if fr.close != nil { |
| 47 | fr.close() |
| 48 | } |
| 49 | |
| 50 | cmd := exec.Command(fr.command[0], fr.command[1:]...) |
| 51 | cmd.Stdin = r |
| 52 | cmd.Stderr = &fr.stderr |
| 53 | |
| 54 | rpipe, err := cmd.StdoutPipe() |
| 55 | if err != nil { |
| 56 | return err |
| 57 | } |
| 58 | |
| 59 | // Don't get the process killed at CTRL+C |
| 60 | cmd.SysProcAttr = &syscall.SysProcAttr{ |
| 61 | Setpgid: true, |
| 62 | } |
| 63 | err = cmd.Start() |
| 64 | if err != nil { |
| 65 | rpipe.Close() |
| 66 | return err |
| 67 | } |
| 68 | |
| 69 | fr.ReadCloser = rpipe |
| 70 | fr.close = func() error { |
| 71 | rpipe.Close() |
| 72 | if err := cmd.Wait(); err != nil { |
| 73 | if _, ok := err.(*exec.ExitError); ok { |
| 74 | return errors.New(strings.TrimSpace(fr.stderr.String())) |
| 75 | } |
| 76 | } |
| 77 | return err |
| 78 | } |
| 79 | return nil |
| 80 | } |
| 81 | |
| 82 | func (fr *fastReader) Close() error { |
| 83 | return fr.close() |