Method StartPager

pkg/iostreams/iostreams.go:216–262

()

}

func (s *IOStreams) StartPager() error {
	if s.pagerCommand == "" || s.pagerCommand == "cat" || !s.IsStdoutTTY() {
		return nil
	}

	pagerArgs, err := shlex.Split(s.pagerCommand)
	if err != nil {
		return err
	}

	pagerEnv := os.Environ()
	for i := len(pagerEnv) - 1; i >= 0; i-- {
		if strings.HasPrefix(pagerEnv[i], "PAGER=") {
			pagerEnv = append(pagerEnv[0:i], pagerEnv[i+1:]...)
		}
	}
	if _, ok := os.LookupEnv("LESS"); !ok {
		pagerEnv = append(pagerEnv, "LESS=FRX")
	}
	if _, ok := os.LookupEnv("LV"); !ok {
		pagerEnv = append(pagerEnv, "LV=-c")
	}

	pagerExe, err := safeexec.LookPath(pagerArgs[0])
	if err != nil {
		return err
	}
	pagerCmd := exec.Command(pagerExe, pagerArgs[1:]...)
	pagerCmd.Env = pagerEnv
	pagerCmd.Stdout = s.Out
	pagerCmd.Stderr = s.ErrOut
	pagedOut, err := pagerCmd.StdinPipe()
	if err != nil {
		return err
	}
	s.Out = &fdWriteCloser{
		fd:          s.Out.Fd(),
		WriteCloser: &pagerWriter{pagedOut},
	}
	s.ContentOut = newContentWriter(s.Out, s.sanitizeContent)
	err = pagerCmd.Start()
	if err != nil {
		return err
	}
	s.pagerProcess = pagerCmd.Process
	return nil
}

func (s *IOStreams) StopPager() {
	if s.pagerProcess == nil {