Fix i18n message catalog naming, add catalog for generator app

Summary:
* rust_qt_binding_generator uses tr() calls, but was missing
  catalog extraction and catalog loading
* .pot is not part of the catalog name
* Demo_qt is too generic name

Reviewers: vandenoever

Reviewed By: vandenoever

Differential Revision: https://phabricator.kde.org/D9458

demo/CMakeLists.txt

@@ -40,7 +40,9 @@ if (KF5Kirigami2_FOUND)
     add_definitions(-DKIRIGAMI2)
 endif()
 
-ecm_create_qm_loader(Demo_QM_LOADER Demo_qt.pot)
+if (ECM_FOUND)
+    ecm_create_qm_loader(Demo_QM_LOADER rqbgdemo_qt)
+endif()
 
 set(Demo_SRCS src/main.cpp src/Bindings.cpp src/SortedModel.cpp
     resource_file.qrc ${Demo_QM_LOADER})

demo/Messages.sh

@@ -0,0 +1,6 @@
+#!/bin/sh
+
+# Extract strings from all source files.
+# EXTRACT_TR_STRINGS extracts strings with lupdate and convert them to .pot with
+# lconvert.
+$EXTRACT_TR_STRINGS `find . -name \*.cpp -o -name \*.h -o -name \*.ui -o -name \*.qml` -o $podir/rqbgdemo_qt.pot

src/CMakeLists.txt

@@ -1,6 +1,12 @@
 
+if (ECM_FOUND)
+    ecm_create_qm_loader(rust_qt_binding_generator_QM_LOADER rust_qt_binding_generator_qt)
+endif()
+
 add_executable(rust_qt_binding_generator main.cpp
-    parseJson.cpp cpp.cpp rust.cpp helper.cpp)
+    parseJson.cpp cpp.cpp rust.cpp helper.cpp
+    ${rust_qt_binding_generator_QM_LOADER}
+)
 target_link_libraries(rust_qt_binding_generator
     Qt5::Core
 )

src/Messages.sh

@@ -3,4 +3,4 @@
 # Extract strings from all source files.
 # EXTRACT_TR_STRINGS extracts strings with lupdate and convert them to .pot with
 # lconvert.
-$EXTRACT_TR_STRINGS `find demo -name \*.cpp -o -name \*.h -o -name \*.ui -o -name \*.qml` -o $podir/Demo_qt.pot
+$EXTRACT_TR_STRINGS `find . -name \*.cpp -o -name \*.h` -o $podir/rust_qt_binding_generator_qt.pot