Advance the progress bar in the foreground when a long running task

in the background (e.g. git clone).

mainwindow.h

@@ -20,6 +20,11 @@ public:
     MainWindow(Worker *worker, QWidget *parent = nullptr);
     ~MainWindow();
 
+    static const int START_PROGRESS_LOOP = -1;
+    static const int STOP_PROGRESS_LOOP = -2;
+
+    int progressValue() const { return m_progressValue; }
+
 public slots:
     void onAppendText(QString, QString suffix = "");
     void onReplaceLast(QString, QString);
@@ -38,5 +43,7 @@ private:
     int m_width;
     QTimer *m_startTimer;
     QTimer *m_exitTimer;
+    bool m_progressRunning;
+    int m_progressValue;
 };
 #endif // MAINWINDOW_H