Use a filename relative to the bibliography file?
The relative path would be
%1
The absolute path would be
%2
", relativeFilename, absoluteFilename, QFontDatabase::systemFont(QFontDatabase::FixedFont).family()), i18n("Relative Path"), KGuiItem(i18n("Relative Path")), KGuiItem(i18n("Absolute Path"))) == KMessageBox::Yes)
^
/usr/local/include/KF5/KWidgetsAddons/kmessagebox.h:142:1: note: 'questionYesNo' has been explicitly marked deprecated here
KWIDGETSADDONS_DEPRECATED_VERSION(5, 100, "Use questionTwoActions()")
^
/usr/local/include/KF5/KWidgetsAddons/kwidgetsaddons_export.h:178:63: note: expanded from macro 'KWIDGETSADDONS_DEPRECATED_VERSION'
#define KWIDGETSADDONS_DEPRECATED_VERSION(major, minor, text) KWIDGETSADDONS_DEPRECATED_VERSION_##major(minor, "Since "#major"."#minor". " text)
^