linux script start

warning when starting without script on linux

setup/Linux/Sourcetrail.sh

@@ -22,4 +22,5 @@ export LD_LIBRARY_PATH="$SOURCETRAIL_PATH/lib:$LD_LIBRARY_PATH"
 export QT_XKB_CONFIG_ROOT="/usr/share/X11/xkb:$QT_XKB_CONFIG_ROOT"
 export QT_QPA_PLATFORM_PLUGIN_PATH="$SOURCETRAIL_PATH/lib/platforms"
 export QT_QPA_FONTDIR="$SOURCETRAIL_PATH/data/fonts:$QT_QPA_FONTDIR"
+export SOURCETRAIL_VIA_SCRIPT
 exec "$SOURCETRAIL_PATH/Sourcetrail" $@

src/lib_gui/qt/window/QtMainWindow.cpp

@@ -125,6 +125,13 @@ QtMainWindow::QtMainWindow()
 	// Need to call loadLayout here for right DockWidget size on Linux
 	// Seconde call is in Application.cpp
 	loadLayout();
+
+#ifdef __linux__
+    if (std::getenv("SOURCETRAIL_VIA_SCRIPT") == nullptr)
+    {
+       QMessageBox::warning(this, "Run Sourcetrail via Script", "Please run Sourcetrail via Sourcetrail.sh");
+    }
+#endif
 }
 
 QtMainWindow::~QtMainWindow()