Add CMake option to install translations

Fixes #485

CMakeLists.txt

@@ -368,6 +368,8 @@ else()
   )
 endif()
 
+option(INSTALL_TRANSLATIONS "Install translations" OFF)
+
 optional_component(SUBSONIC ON "Subsonic support")
 optional_component(TIDAL ON "Tidal support")
 

cmake/Translations.cmake

@@ -19,6 +19,8 @@ set (XGETTEXT_OPTIONS
     --from-code=utf-8
     )
 
+execute_process(COMMAND ${CMAKE_COMMAND} -E make_directory ${CMAKE_CURRENT_BINARY_DIR}/translations)
+
 macro(add_pot outfiles header pot)
   # Make relative filenames for all source files
   set(add_pot_sources)
@@ -64,18 +66,21 @@ macro(add_po outfiles po_prefix)
     )
 
     list(APPEND ${outfiles} ${_qm_filepath})
+    list(APPEND INSTALL_TRANSLATIONS_FILES ${_qm_filepath})
   endforeach (_lang)
 
   # Generate a qrc file for the translations
-  set(_qrc ${CMAKE_CURRENT_BINARY_DIR}/${ADD_PO_DIRECTORY}/translations.qrc)
-  file(WRITE ${_qrc} "<RCC><qresource prefix=\"/${ADD_PO_DIRECTORY}\">")
-  foreach(_lang ${ADD_PO_LANGUAGES})
-    file(APPEND ${_qrc} "<file>${po_prefix}${_lang}.qm</file>")
-  endforeach(_lang)
-  file(APPEND ${_qrc} "</qresource></RCC>")
-  if(WITH_QT6)
-    qt6_add_resources(${outfiles} ${_qrc})
-  else()
-    qt5_add_resources(${outfiles} ${_qrc})
+  if(NOT INSTALL_TRANSLATIONS)
+    set(_qrc ${CMAKE_CURRENT_BINARY_DIR}/${ADD_PO_DIRECTORY}/translations.qrc)
+    file(WRITE ${_qrc} "<RCC><qresource prefix=\"/${ADD_PO_DIRECTORY}\">")
+    foreach(_lang ${ADD_PO_LANGUAGES})
+      file(APPEND ${_qrc} "<file>${po_prefix}${_lang}.qm</file>")
+    endforeach(_lang)
+    file(APPEND ${_qrc} "</qresource></RCC>")
+    if(WITH_QT6)
+      qt6_add_resources(${outfiles} ${_qrc})
+    else()
+      qt5_add_resources(${outfiles} ${_qrc})
+    endif()
   endif()
 endmacro(add_po)

src/CMakeLists.txt

@@ -1243,6 +1243,10 @@ if(NOT APPLE)
   install(TARGETS strawberry RUNTIME DESTINATION bin)
 endif()
 
+if(INSTALL_TRANSLATIONS_FILES)
+  install(FILES ${INSTALL_TRANSLATIONS_FILES} DESTINATION share/translations)
+endif()
+
 if(APPLE)
   set_target_properties(strawberry PROPERTIES MACOSX_BUNDLE_INFO_PLIST "${CMAKE_CURRENT_SOURCE_DIR}/../dist/macos/Info.plist")
 endif (APPLE)

src/config.h.in

@@ -58,9 +58,10 @@
 #cmakedefine HAVE_TAGLIB_DSDIFFFILE
 
 #cmakedefine USE_BUNDLE
-
 #define USE_BUNDLE_DIR "${USE_BUNDLE_DIR}"
 
 #cmakedefine HAVE_TRANSLATIONS
+#cmakedefine INSTALL_TRANSLATIONS
+#define TRANSLATIONS_DIR "${CMAKE_INSTALL_PREFIX}/share/translations"
 
 #endif // CONFIG_H_IN

src/main.cpp

@@ -225,7 +225,7 @@ int main(int argc, char* argv[]) {
   // Resources
   Q_INIT_RESOURCE(data);
   Q_INIT_RESOURCE(icons);
-#ifdef HAVE_TRANSLATIONS
+#if defined(HAVE_TRANSLATIONS) && !defined(INSTALL_TRANSLATIONS)
   Q_INIT_RESOURCE(translations);
 #endif
 
@@ -254,6 +254,7 @@ int main(int argc, char* argv[]) {
 
   translations->LoadTranslation("qt", QLibraryInfo::location(QLibraryInfo::TranslationsPath), language);
   translations->LoadTranslation("strawberry", ":/translations", language);
+  translations->LoadTranslation("strawberry", TRANSLATIONS_DIR, language);
   translations->LoadTranslation("strawberry", a.applicationDirPath(), language);
   translations->LoadTranslation("strawberry", QDir::currentPath(), language);
 

src/settings/behavioursettingspage.cpp

@@ -37,6 +37,7 @@
 #include <QSpinBox>
 #include <QComboBox>
 #include <QGroupBox>
+#include <QStandardPaths>
 
 #include "core/iconloader.h"
 #include "core/mainwindow.h"
@@ -73,8 +74,12 @@ BehaviourSettingsPage::BehaviourSettingsPage(SettingsDialog *dialog) : SettingsP
 
 #ifdef HAVE_TRANSLATIONS
   // Populate the language combo box.  We do this by looking at all the compiled in translations.
-  QDir dir(":/translations/");
-  QStringList codes(dir.entryList(QStringList() << "*.qm"));
+  QDir dir1(":/translations/");
+  QDir dir2(TRANSLATIONS_DIR);
+  QStringList codes(dir1.entryList(QStringList() << "*.qm"));
+  if (dir2.exists()) {
+    codes << dir2.entryList(QStringList() << "*.qm");
+  }
   QRegularExpression lang_re("^strawberry_(.*).qm$");
   for (const QString &filename : codes) {