From c9d36b1302dc5caf2d1db03e8fb284cbb2255ace Mon Sep 17 00:00:00 2001
From: xiphon <xiphon@protonmail.com>
Date: Thu, 9 Jul 2020 15:13:21 +0000
Subject: [PATCH] cmake: translations deps handling, build translations as a
 library

---
 CMakeLists.txt              |  1 -
 src/CMakeLists.txt          |  3 ++-
 src/main/main.cpp           |  2 ++
 translations/CMakeLists.txt | 47 ++++++++++++++++++++++++++++---------
 4 files changed, 40 insertions(+), 13 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index b853d2cb..f8431d5f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -514,6 +514,5 @@ if (HIDAPI_FOUND OR LibUSB_COMPILE_TEST_PASSED)
 endif()
 
 add_subdirectory(translations)
-get_directory_property(TRANSLATIONS_QRC DIRECTORY translations DEFINITION TRANSLATIONS_QRC)
 
 add_subdirectory(src)
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 23af9a05..b73bff79 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -6,7 +6,7 @@ add_subdirectory(model)
 add_subdirectory(openpgp)
 add_subdirectory(zxcvbn-c)
 
-qt5_add_resources(RESOURCES ../qml.qrc ${TRANSLATIONS_QRC})
+qt5_add_resources(RESOURCES ../qml.qrc)
 
 # Compile source files (.h/.cpp)
 file(GLOB SOURCE_FILES
@@ -148,6 +148,7 @@ target_link_libraries(monero-wallet-gui
     ${EXTRA_LIBRARIES}
     ${ICU_LIBRARIES}
     openpgp
+    translations
 )
 
 if(DEVICE_TREZOR_READY)
diff --git a/src/main/main.cpp b/src/main/main.cpp
index 18986409..d7788dc6 100644
--- a/src/main/main.cpp
+++ b/src/main/main.cpp
@@ -147,6 +147,8 @@ bool isOpenGL = true;
 
 int main(int argc, char *argv[])
 {
+    Q_INIT_RESOURCE(translations);
+
     // platform dependant settings
 #if !defined(Q_OS_ANDROID) && !defined(Q_OS_IOS)
     bool isDesktop = true;
diff --git a/translations/CMakeLists.txt b/translations/CMakeLists.txt
index 8f1c0bc6..ab10fa4a 100644
--- a/translations/CMakeLists.txt
+++ b/translations/CMakeLists.txt
@@ -1,23 +1,48 @@
+find_package(Qt5Core REQUIRED)
+
+find_package(Qt5LinguistTools QUIET)
+if(NOT Qt5_LRELEASE_EXECUTABLE)
+  find_program(Qt5_LRELEASE_EXECUTABLE lrelease REQUIRED)
+endif()
+
 file(GLOB TS_FILES *.ts)
 
-set(QRC "<RCC><qresource prefix=\"/\">")
+set(QM_FILES)
+set(QRC_CONTENTS "<RCC><qresource prefix=\"/\">")
 foreach(TS_FILE ${TS_FILES})
   get_filename_component(QM_FILE ${TS_FILE} NAME_WE)
   set(QM_FILE ${CMAKE_CURRENT_BINARY_DIR}/${QM_FILE}.qm)
+  list(APPEND QM_FILES ${QM_FILE})
 
-  execute_process(COMMAND lrelease -compress -nounfinished -removeidentical ${TS_FILE} -qm ${QM_FILE}
-    RESULT_VARIABLE RET
-    OUTPUT_VARIABLE OUT
-    ERROR_VARIABLE ERR
+  add_custom_command(
+    OUTPUT ${QM_FILE}
+    COMMAND ${Qt5_LRELEASE_EXECUTABLE} -compress -nounfinished -removeidentical ${TS_FILE} -qm ${QM_FILE}
+    DEPENDS ${TS_FILE}
   )
-  if(RET)
-    message(FATAL_ERROR "${TS_FILE}: lrelease returned non-zero exit code: ${RET} ${OUT} ${ERR}")
-  endif()
 
   get_filename_component(QM_FILE_NAME ${QM_FILE} NAME)
-  string(APPEND QRC "<file>${QM_FILE_NAME}</file>")
+  string(APPEND QRC_CONTENTS "<file>${QM_FILE_NAME}</file>")
 endforeach()
-string(APPEND QRC "</qresource></RCC>")
+string(APPEND QRC_CONTENTS "</qresource></RCC>")
 
 set(TRANSLATIONS_QRC ${CMAKE_CURRENT_BINARY_DIR}/translations.qrc)
-file(WRITE ${TRANSLATIONS_QRC} ${QRC})
+add_custom_command(
+  OUTPUT ${TRANSLATIONS_QRC}
+  COMMAND echo ${QRC_CONTENTS} > ${TRANSLATIONS_QRC}
+  VERBATIM
+)
+set_source_files_properties(${TRANSLATIONS_QRC} PROPERTIES SKIP_AUTORCC ON)
+
+set(TRANSLATIONS_CPP ${CMAKE_CURRENT_BINARY_DIR}/qrc_translations.cpp)
+add_custom_command(
+  OUTPUT ${TRANSLATIONS_CPP}
+  COMMAND ${Qt5Core_RCC_EXECUTABLE}
+  ARGS --name translations --output ${TRANSLATIONS_CPP} ${TRANSLATIONS_QRC}
+  MAIN_DEPENDENCY ${TRANSLATIONS_QRC}
+  DEPENDS ${QM_FILES}
+  VERBATIM
+)
+set_source_files_properties(${TRANSLATIONS_CPP} PROPERTIES SKIP_AUTOMOC ON)
+set_source_files_properties(${TRANSLATIONS_CPP} PROPERTIES SKIP_AUTOUIC ON)
+
+add_library(translations ${TRANSLATIONS_CPP})