qmake: Use installed Qt's translations for packaging

macxconf.pri

@@ -7,13 +7,31 @@ else {
     include(conf.pri)
 }
 
+# Custom function
+# Return Qt translations files as list of paths
+# It will return .qm files of qt/qtbase that aren't stub files.
+defineReplace(qbt_get_qt_translations) {
+    # The $$[] syntax queries qmake properties
+    TMP_TRANSLATIONS = $$files($$[QT_INSTALL_TRANSLATIONS]/qt_??.qm)
+    TMP_TRANSLATIONS += $$files($$[QT_INSTALL_TRANSLATIONS]/qt_??_??.qm)
+    TMP_TRANSLATIONS += $$files($$[QT_INSTALL_TRANSLATIONS]/qtbase_??.qm)
+    TMP_TRANSLATIONS += $$files($$[QT_INSTALL_TRANSLATIONS]/qtbase_??_??.qm)
+
+   # Consider files less than 10KB as stub translations
+   for (TRANSLATION, TMP_TRANSLATIONS) {
+      TRANSLATION_SIZE = $$system("stat -f%z $${TRANSLATION}", true, EXIT_STATUS)
+      equals(EXIT_STATUS, 0):!lessThan(TRANSLATION_SIZE, 10240): FINAL_TRANSLATIONS += $${TRANSLATION}
+   }
+
+   return($$FINAL_TRANSLATIONS)
+}
+
 QMAKE_MACOSX_DEPLOYMENT_TARGET = 10.14
 
 DEFINES += _DARWIN_FEATURE_64_BIT_INODE
 
 LIBS += -framework Carbon -framework IOKit -framework AppKit
 
-QT_LANG_PATH = ../dist/qt-translations
 DIST_PATH = ../dist/mac
 
 document_icon.path = Contents/Resources
@@ -25,15 +43,7 @@ qt_conf.files = $$DIST_PATH/qt.conf
 QMAKE_BUNDLE_DATA += qt_conf
 
 qt_translations.path = Contents/translations
-qt_translations.files = $$files($$QT_LANG_PATH/qtbase_*.qm)
-qt_translations.files += \
-    $$QT_LANG_PATH/qt_fa.qm \
-    $$QT_LANG_PATH/qt_gl.qm \
-    $$QT_LANG_PATH/qt_lt.qm \
-    $$QT_LANG_PATH/qt_pt.qm \
-    $$QT_LANG_PATH/qt_sl.qm \
-    $$QT_LANG_PATH/qt_sv.qm \
-    $$QT_LANG_PATH/qt_zh_CN.qm
+qt_translations.files =  $$qbt_get_qt_translations()
 QMAKE_BUNDLE_DATA += qt_translations
 
 ICON = $$DIST_PATH/qbittorrent_mac.icns