debug: try to capture changes that don't invalidate git cache

At least in those cases where we are sending a divesChanged signal we can
easily check if the cache was properly invalidated. Of course this won't help
in cases where we don't notify the dive list about changes, either.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

2 files changed, 17 insertions, 2 deletions

diff --git a/desktop-widgets/mainwindow.cpp b/desktop-widgets/mainwindow.cpp
index 1ad9a3308..9d2b31136 100644
--- a/desktop-widgets/mainwindow.cpp
+++ b/desktop-widgets/mainwindow.cpp
@@ -37,8 +37,6 @@
 #include "core/settings/qPrefPartialPressureGas.h"
 #include "core/settings/qPrefTechnicalDetails.h"
 
-#include "core/subsurface-qt/divelistnotifier.h"
-
 #include "desktop-widgets/about.h"
 #include "desktop-widgets/divecomputermanagementdialog.h"
 #include "desktop-widgets/divelistview.h"
@@ -218,6 +216,11 @@ MainWindow::MainWindow() : QMainWindow(),
 
 	connect(&windowTitleUpdate, &WindowTitleUpdate::updateTitle, this, &MainWindow::setAutomaticTitle);
 	connect(&diveListNotifier, &DiveListNotifier::numShownChanged, this, &MainWindow::setAutomaticTitle);
+	// monitor when dives changed - but only in verbose mode
+	// careful - changing verbose at runtime isn't enough (of course that could be added if we want it)
+	if (verbose)
+		connect(&diveListNotifier, &DiveListNotifier::divesChanged, this, &MainWindow::divesChanged);
+
 #ifdef NO_PRINTING
 	plannerDetails->printPlan()->hide();
 	ui.menuFile->removeAction(ui.actionPrint);
@@ -1944,3 +1947,13 @@ void MainWindow::unsetProfTissues()
 	ui.profTissues->setChecked(false);
 	qPrefTechnicalDetails::set_percentagegraph(false);
 }
+
+void MainWindow::divesChanged(const QVector<dive *> &dives, DiveField field)
+{
+	Q_UNUSED(field)
+	for (struct dive *d: dives) {
+		qDebug() << "dive #" << d->number << "changed, cache is" << (dive_cache_is_valid(d) ? "valid" : "invalidated");
+		// a brute force way to deal with that would of course be to call
+		// invalidate_dive_cache(d);
+	}
+}
diff --git a/desktop-widgets/mainwindow.h b/desktop-widgets/mainwindow.h
index 109ca0e0c..247bddaf3 100644
--- a/desktop-widgets/mainwindow.h
+++ b/desktop-widgets/mainwindow.h
@@ -22,6 +22,7 @@
 #include "core/applicationstate.h"
 #include "core/gpslocation.h"
 #include "core/dive.h"
+#include "core/subsurface-qt/divelistnotifier.h"
 
 #define NUM_RECENT_FILES 4
 
@@ -252,6 +253,7 @@ private:
 	GpsLocation *locationProvider;
 	QMenu *connections;
 	QAction *share_on_fb;
+	void divesChanged(const QVector<dive *> &dives, DiveField field);
 };
 
 #endif // MAINWINDOW_H