Method shellExecInput

tools/sifgen/utils/cli.go:243–284

(cmd string, inputs [][]byte, args ...string)

}

func (c CLI) shellExecInput(cmd string, inputs [][]byte, args ...string) (*string, error) {
	cm := exec.Command(cmd, args...)
	var stderr bytes.Buffer
	cm.Stderr = &stderr

	stdin, err := cm.StdinPipe()
	if err != nil {
		return nil, err
	}

	stdout, err := cm.StdoutPipe()
	if err != nil {
		return nil, err
	}

	buf := bytes.NewBuffer(nil)
	go func() {
		_, err := io.Copy(buf, stdout)
		if err != nil {
			log.Println("io.Copy failed: ", err.Error())
		}
	}()

	if err := cm.Start(); err != nil {
		panic(err)
	}

	for _, i := range inputs {
		_, err := stdin.Write(i)
		if err != nil {
			log.Println("Write failed: ", err.Error())
		}
	}

	if err := cm.Wait(); err != nil {
		fmt.Println(stderr.String())
		return nil, err
	}

	result := buf.String()
	return &result, nil
}