ENH: Added cmake macro allowing to compile python script into a given directory

The macro creates the appropriate target and add them to ALL

Note that the scripts will be compiled at build time.

CMake/ctkMacroCompilePythonScript.cmake

@@ -0,0 +1,57 @@
+
+
+#
+# Based on ParaView/VTK/Utilities/vtkTclTest2Py/CMakeLists.txt and
+#          ParaView/VTK/Wrapping/Python/CMakeLists.txt
+#
+
+MACRO(ctkMacroCompilePythonScript kit_name python_source_files dest_dir)
+
+  FIND_PACKAGE(PythonInterp REQUIRED)
+  
+  SET(copied_python_files)
+  
+  FOREACH(file ${python_source_files})
+    GET_FILENAME_COMPONENT(file_we "${CMAKE_CURRENT_SOURCE_DIR}/${file}" NAME_WE)
+    SET(src "${CMAKE_CURRENT_SOURCE_DIR}/${file_we}.py")
+    SET(tgt "${dest_dir}/${file_we}.py")
+    SET(copied_python_files ${copied_python_files} ${tgt})
+    ADD_CUSTOM_COMMAND(DEPENDS ${src}
+                        COMMAND ${CMAKE_COMMAND} -E copy ${src} ${tgt}
+                        OUTPUT ${tgt}
+                        COMMENT "source copy")
+  ENDFOREACH()
+  
+  ADD_CUSTOM_TARGET(Copy${kit_name}PythonFiles
+                  ALL
+                  DEPENDS ${copied_python_files})
+  
+  # Byte compile the Python files.
+  SET(compile_all_script "${CMAKE_CURRENT_BINARY_DIR}/compile_all_${kit_name}.py")
+  
+  # Based on paraview/VTK/Wrapping/Python/compile_all_vtk.py.in
+  FILE(WRITE ${compile_all_script} "
+\# Auto-generated
+import compileall
+compileall.compile_dir('${dest_dir}')
+file = open('${CMAKE_CURRENT_BINARY_DIR}/${kit_name}_python_compile_complete', 'w')
+file.write('Done')
+")
+
+  ADD_CUSTOM_COMMAND(
+    COMMAND ${PYTHON_EXECUTABLE}
+    ARGS  "${compile_all_script}"
+    DEPENDS ${copied_python_files}  ${compile_all_script}
+    OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${kit_name}_python_compile_complete"
+    )
+  
+  ADD_CUSTOM_TARGET(${kit_name}_pyc ALL
+    DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/${kit_name}_python_compile_complete")
+
+
+  # Install the slicer python module directory
+  #INSTALL(DIRECTORY "${Slicer3_BINARY_DIR}/bin/Python"
+  #  DESTINATION "${Slicer3_INSTALL_BIN_DIR}" COMPONENT Runtime
+  #  USE_SOURCE_PERMISSIONS)
+
+ENDMACRO()

CMakeLists.txt

@@ -140,6 +140,7 @@ INCLUDE(CMake/ctkMacroBuildLib.cmake)
 INCLUDE(CMake/ctkMacroBuildPlugin.cmake)
 INCLUDE(CMake/ctkMacroBuildApp.cmake)
 INCLUDE(CMake/ctkMacroBuildQtDesignerPlugin.cmake)
+INCLUDE(CMake/ctkMacroCompilePythonScript.cmake)
 INCLUDE(CMake/ctkMacroSetupQt.cmake)
 INCLUDE(CMake/ctkMacroTargetLibraries.cmake) # Import multiple macros
 INCLUDE(CMake/ctkFunctionExtractOptionNameAndValue.cmake)