예제 #1
0
파일: exec.go 프로젝트: wlihome/elvish
// waitStatusToStateUpdate converts syscall.WaitStatus to a StateUpdate.
func waitStatusToStateUpdate(ws syscall.WaitStatus) *stateUpdate {
	switch {
	case ws.Exited():
		es := ws.ExitStatus()
		if es == 0 {
			return newExitedStateUpdate(ok)
		}
		return newExitedStateUpdate(newFailure(fmt.Sprint(es)))
	case ws.Signaled():
		msg := fmt.Sprintf("signaled %v", ws.Signal())
		if ws.CoreDump() {
			msg += " (core dumped)"
		}
		return newUnexitedStateUpdate(msg)
	case ws.Stopped():
		msg := fmt.Sprintf("stopped %v", ws.StopSignal())
		trap := ws.TrapCause()
		if trap != -1 {
			msg += fmt.Sprintf(" (trapped %v)", trap)
		}
		return newUnexitedStateUpdate(msg)
	case ws.Continued():
		return newUnexitedStateUpdate("continued")
	default:
		return newUnexitedStateUpdate(fmt.Sprint("unknown status", ws))
	}
}
예제 #2
0
파일: exec.go 프로젝트: horryq/elvish
func printStatus(ws syscall.WaitStatus) string {
	switch {
	case ws.Exited():
		es := ws.ExitStatus()
		if es == 0 {
			return ""
		}
		return fmt.Sprintf("exited %v", es)
	case ws.Signaled():
		msg := fmt.Sprintf("signaled %v", ws.Signal())
		if ws.CoreDump() {
			msg += " (core dumped)"
		}
		return msg
	case ws.Stopped():
		msg := fmt.Sprintf("stopped %v", ws.StopSignal())
		trap := ws.TrapCause()
		if trap != -1 {
			msg += fmt.Sprintf(" (trapped %v)", trap)
		}
		return msg
	case ws.Continued():
		return "continued"
	default:
		return fmt.Sprintf("unknown status %v", ws)
	}
}
예제 #3
0
파일: exec.go 프로젝트: firebitsbr/elvish
// waitStatusToError converts syscall.WaitStatus to an Error.
func waitStatusToError(ws syscall.WaitStatus) error {
	switch {
	case ws.Exited():
		es := ws.ExitStatus()
		if es == 0 {
			return nil
		}
		return errors.New(fmt.Sprint(es))
	case ws.Signaled():
		msg := fmt.Sprintf("signaled %v", ws.Signal())
		if ws.CoreDump() {
			msg += " (core dumped)"
		}
		return errors.New(msg)
	case ws.Stopped():
		msg := fmt.Sprintf("stopped %v", ws.StopSignal())
		trap := ws.TrapCause()
		if trap != -1 {
			msg += fmt.Sprintf(" (trapped %v)", trap)
		}
		return errors.New(msg)
	/*
		case ws.Continued():
			return newUnexitedStateUpdate("continued")
	*/
	default:
		return fmt.Errorf("unknown WaitStatus", ws)
	}
}
예제 #4
0
func (self *server) Execute(req *pb.ExecutionRequest, resp pb.Builder_ExecuteServer) error {
	if len(req.Args) == 0 {
		return fmt.Errorf("Request has no command to execute.")
	}

	var args []string
	if len(req.Args) > 1 {
		args = req.Args[1:]
	}

	if req.BuildEnv == nil {
		return fmt.Errorf("No build environment present")
	} else if err := sig.VerifyEnv(req.BuildEnv); err != nil {
		return fmt.Errorf("Failure verifying build environment: %s", err)
	}
	cmd := exec.Command(req.Args[0], args...)
	cmd.Env = convertEnv(req.GetEnv())
	cmd.Stdin = bytes.NewReader(req.Stdin)
	cmd.Dir = req.BuildEnv.Path

	glog.V(1).Infof("Commands to execute %v (build dir: %s)", req, cmd.Dir)

	stdoutPipe, err := cmd.StdoutPipe()
	if err != nil {
		return err
	}

	stderrPipe, err := cmd.StderrPipe()
	if err != nil {
		return err
	}

	if err = cmd.Start(); err != nil {
		return err
	}
	streamReader(stdoutPipe, stderrPipe, resp)
	err = cmd.Wait()

	var status syscall.WaitStatus
	if err != nil {
		if _, ok := err.(*exec.ExitError); ok {
			status = err.(*exec.ExitError).Sys().(syscall.WaitStatus)
		} else {
			return err
		}
	} else if cmd.ProcessState != nil {
		status = cmd.ProcessState.Sys().(syscall.WaitStatus)
	}
	s := &pb.Status{
		CoreDump:   status.CoreDump(),
		Exited:     status.Exited(),
		ExitStatus: int32(status.ExitStatus()),
		Signaled:   status.Signaled(),
		Signal:     int32(status.Signal()),
	}
	resp.Send(&pb.ExecutionResponse{Status: s})
	return nil
}