[pim/trojita] src/Gui: Check that LICENSE QFile is open before reading

Git commit 8f0f2d70dd9328666f0b13233efe6ad9465319e6 by Espen Sandøy Hustad.
Committed on 03/08/2026 at 18:32.
Pushed by ehustad into branch 'master'.

Check that LICENSE QFile is open before reading

And inform the user about the error in the About dialog box.

Fix src/Gui/Window.cpp:2169:9: warning: ignoring return
value of function declared with 'nodiscard' attribute [-Wunused-result]

M  +6    -2    src/Gui/Window.cpp

https://invent.kde.org/pim/trojita/-/commit/8f0f2d70dd9328666f0b13233efe6ad9465319e6

diff --git a/src/Gui/Window.cpp b/src/Gui/Window.cpp
index cea4f291b..c1dd671f1 100644
--- a/src/Gui/Window.cpp
+++ b/src/Gui/Window.cpp
@@ -2162,10 +2162,14 @@ void MainWindow::slotShowAboutTrojita()
     featuresText += QStringLiteral("</ul>");
     ui.descriptionLabel->setText(ui.descriptionLabel->text() + featuresText);
 
+    QStringList copyright;
     // Find the names of the authors and remove date codes from there
     QFile license(QStringLiteral(":/LICENSE"));
-    license.open(QFile::ReadOnly);
-    const QStringList copyright = copyrightHolders(&license);
+    if (license.open(QFile::ReadOnly)) {
+        copyright = copyrightHolders(&license);
+    } else {
+        copyright << tr("Failed to open license file.");
+    }
 
     ui.credits->setTextFormat(Qt::PlainText);
     ui.credits->setText(copyright.join(QStringLiteral("\n")));