package liquidsoap import ( "os/exec" "syscall" "github.com/pkg/errors" ) var ErrNotRunning = errors.New("liquidsoap is not running") type Liquidsoap struct { command *exec.Cmd } func NewLiquidsoap(liquidsoapPath, scriptPath string) (*Liquidsoap, error) { if _, err := exec.LookPath(liquidsoapPath); err != nil { return nil, err } out, err := exec.Command(liquidsoapPath, "--verbose", "-c", scriptPath).CombinedOutput() if err != nil { return nil, errors.Wrap(err, "cannot check script") } if len(out) > 0 { return nil, errors.Errorf("script validation failed: %s", string(out)) } cmd := exec.Command(liquidsoapPath, scriptPath) if err := cmd.Start(); err != nil { return nil, err } return &Liquidsoap{ command: cmd}, nil } func (l *Liquidsoap) Stop() error { if l.command.Process == nil && l.command.ProcessState != nil { return ErrNotRunning } if err := l.command.Process.Signal(syscall.SIGINT); err != nil { return err } if err := l.command.Wait(); err != nil { return err } return nil }