F

internal/kernel/session.go

@@ -23,7 +23,7 @@ type Session struct {
 	cmd            *exec.Cmd
 	ptmx           *os.File
 	isReady        bool
-	ready          chan struct{} // notifies when the process is ready; for shell after observing first prompt
+	ready          chan struct{} // notifies when the process is ready; for shells upon observing the first prompt
 	outputMu       sync.Mutex
 	output         io.Writer
 	outputCopyFunc func() error

internal/kernel/session_shell.go

@@ -95,6 +95,9 @@ func (s *ShellSession) copyOutput() error {
 			err = errors.WithStack(er)
 			break
 		}
+		// TODO: improve this fragment. It seems that it is possible that prompt
+		// is split between multiple reads. If that's correct, this code won't
+		// detect that.
 		if bytes.Contains(buf[0:nr], s.prompt) {
 			s.promptDetected()
 		}