Generates files from IDL only at compilation time and only if necessary

CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 2.8)
+cmake_minimum_required(VERSION 3.0)
 project(libtango)
 include(CTest)
 
@@ -20,7 +20,8 @@ include(configure/CMakeLists.txt)
 include_directories(cppapi/client)
 include_directories(cppapi/client/helpers)
 include_directories(cppapi/server)
-include_directories(cppapi/server/idl)
+#required for idl/tango.h
+include_directories(${CMAKE_CURRENT_BINARY_DIR}/cppapi/server)
 include_directories(log4tango/include)
 #required for generated config.h
 include_directories(${CMAKE_CURRENT_BINARY_DIR}/log4tango/include)
@@ -54,3 +55,10 @@ configure_file(tango.pc.cmake tango.pc @ONLY)
 
 install(FILES "${CMAKE_CURRENT_BINARY_DIR}/tango.pc"
         DESTINATION "${CMAKE_INSTALL_FULL_LIBDIR}/pkgconfig")
+
+# This is a convenient target to be able to test the installation part from CLion IDE
+# Just select the install_libtango target and build (not execute) this target
+# This will do the equivalent of make install from CLion
+add_custom_target(install_${PROJECT_NAME}
+        $(MAKE) install
+        COMMENT "Installing ${PROJECT_NAME}")

cppapi/client/CMakeLists.txt

@@ -60,5 +60,6 @@ add_subdirectory(helpers)
 
 add_library(client_objects OBJECT ${SOURCES})
 target_compile_options(client_objects PRIVATE -fPIC)
+add_dependencies(client_objects idl_objects)
 
-install(FILES ${HEADERS} DESTINATION "${CMAKE_INSTALL_FULL_INCLUDEDIR}")
+install(FILES ${HEADERS} DESTINATION "${CMAKE_INSTALL_FULL_INCLUDEDIR}")

cppapi/server/CMakeLists.txt

@@ -137,5 +137,6 @@ add_subdirectory(jpeg_mmx)
 
 add_library(server_objects OBJECT ${SOURCES})
 target_compile_options(server_objects PRIVATE -fPIC)
+add_dependencies(server_objects idl_objects)
 
-install(FILES ${HEADERS} DESTINATION "${CMAKE_INSTALL_FULL_INCLUDEDIR}")
+install(FILES ${HEADERS} DESTINATION "${CMAKE_INSTALL_FULL_INCLUDEDIR}")

cppapi/server/idl/CMakeLists.txt

@@ -1,34 +1,15 @@
-message("Generate tango.h, tangoSK.cpp and tangoDybSK.cpp from idl")
-
-message("Using OMNIIDL_PATH=${OMNIIDL_PATH}")
-message("Using IDL=${IDL_PKG_INCLUDE_DIRS}")
-
-execute_process(COMMAND ${OMNIIDL_PATH}omniidl -I${IDL_PKG_INCLUDE_DIRS} -bcxx -Wbh=.h -Wbs=SK.cpp -Wbd=DynSK.cpp -Wba ${IDL_PKG_INCLUDE_DIRS}/tango.idl
-                WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
-                RESULT_VARIABLE FAILED)
-
-if(${FAILED})
-    message(SEND_ERROR " Failed to generate source files from idl. rv=${FAILED}")
-endif()
-
-FILE(GLOB ENHANCEMENTS Enhance*)
-
-foreach(ENHANCEMENT ${ENHANCEMENTS})
-    message("Applying enhancement ${ENHANCEMENT}")
-    execute_process(COMMAND sed -i -f ${ENHANCEMENT} tango.h
-                WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
-                RESULT_VARIABLE FAILED)
-
-        #non-zero
-    if(${FAILED})
-        message(SEND_ERROR " Failed to apply ${ENHANCEMENT}. rv=${FAILED}")
-    endif()
-endforeach(ENHANCEMENT)
+add_custom_command(
+	OUTPUT tango.h tangoSK.cpp tangoDynSK.cpp
+	COMMAND ${CMAKE_COMMAND} -DOMNIIDL_PATH=${OMNIIDL_PATH} -DIDL_PKG_INCLUDE_DIRS=${IDL_PKG_INCLUDE_DIRS} 
+	-DCMAKE_INSTALL_FULL_INCLUDEDIR=${CMAKE_INSTALL_FULL_INCLUDEDIR} -DPATCHES_SOURCE_DIR=${CMAKE_CURRENT_SOURCE_DIR} -P ${CMAKE_CURRENT_SOURCE_DIR}/generate/CMakeLists.txt
+	WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+)
 
 set(SOURCES tangoSK.cpp
             tangoDynSK.cpp)
 
 add_library(idl_objects OBJECT ${SOURCES} tango.h)
 target_compile_options(idl_objects PRIVATE -fPIC)
 
-install(FILES tango.h DESTINATION "${CMAKE_INSTALL_FULL_INCLUDEDIR}/idl")
+install(FILES ${CMAKE_CURRENT_BINARY_DIR}/tango.h DESTINATION "${CMAKE_INSTALL_FULL_INCLUDEDIR}/idl")
+

cppapi/server/idl/generate/CMakeLists.txt

@@ -0,0 +1,27 @@
+message("Generate tango.h, tangoSK.cpp and tangoDybSK.cpp from idl")
+message("Using OMNIIDL_PATH=${OMNIIDL_PATH}")
+message("Using IDL=${IDL_PKG_INCLUDE_DIRS}")
+
+execute_process(COMMAND ${OMNIIDL_PATH}omniidl -I${IDL_PKG_INCLUDE_DIRS} -bcxx -Wbh=.h -Wbs=SK.cpp -Wbd=DynSK.cpp -Wba ${IDL_PKG_INCLUDE_DIRS}/tango.idl
+                WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+                RESULT_VARIABLE FAILED)
+
+if(${FAILED}) 
+	message(SEND_ERROR " Failed to generate source files from idl. rv=${FAILED}")
+endif()
+
+message("Using PATCHES_SOURCE_DIR=${PATCHES_SOURCE_DIR}")
+
+FILE(GLOB ENHANCEMENTS ${PATCHES_SOURCE_DIR}/Enhance*)
+
+foreach(ENHANCEMENT ${ENHANCEMENTS})
+	message("Applying enhancement ${ENHANCEMENT}")
+	execute_process(COMMAND sed -i -f ${ENHANCEMENT} tango.h
+		            WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+		            RESULT_VARIABLE FAILED)
+    #non-zero
+    if(${FAILED})
+       	message(SEND_ERROR " Failed to apply ${ENHANCEMENT}. rv=${FAILED}")
+    endif()
+endforeach(ENHANCEMENT)
+