Update module to track 4.4

Author: enetheru

CMakeLists.txt

@@ -1,92 +1,79 @@
 # Using the same minimum as the godot-cpp project
 cmake_minimum_required(VERSION 3.17)
 
-# Specify Options
-option(USE_GIT_SUBMODULES ON "")
-option(USE_FETCHCONTENT OFF "")
-
-# Verify Options
-if(USE_GIT_SUBMODULES AND USE_FETCHCONTENT)
-    message(FATAL_ERROR "Cannot specify both git submodules and fetchcontent.")
-endif()
-
-#[[ CMake has a bunch of global properties which get copied to projects and targets at the moment of definition.
-So make any changes to global options which effect all components of the build prior to making any call that
-leads to a project or target definition.
-Examples are: CMAKE_OSX_ARCHITECTURES, CMAKE_MSVC_RUNTIME_LIBRARY
-]]
-
 # Silence unused variable warning when specified from toolchain
 if(CMAKE_C_COMPILER)
 endif()
 
+set(LIBNAME "EXTENSION-NAME" CACHE STRING "The name of the library")
+set(GODOT_PROJECT_DIR "demo" CACHE STRING "The directory of a Godot project folder")
 
 # Make sure all the dependencies are satisfied
 find_package(Python3 3.4 REQUIRED)
-
-# For godot-cpp we can use the git submodule method, or we can use CMake's fetchcontent module
-# In either case it is important to specify any GODOTCPP_ options prior to add_subdirectory
-# or fetchcontent_makeavailable
-
-#set(GODOTCPP_BUILD_PROFILE "${CMAKE_CURRENT_SOURCE_DIR}/build_profile.json")
-
-if(USE_GIT_SUBMODULES)
-    if(NOT EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/godot-cpp/src")
-        message(NOTICE "godot-cpp bindings source not found")
-        message(NOTICE "initializing/updating the godot-cpp submodule...")
-
-        # update the c++ bindings submodule to populate it with
-        # the necessary source for the library
-        execute_process(
-            COMMAND git submodule update --init extern/godot-cpp
-            WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
-            COMMAND_ERROR_IS_FATAL ANY
-        )
-    endif()
-    add_subdirectory(godot-cpp)
-endif()
-
-if(USE_FETCHCONTENT)
-    include(FetchContent)
-    # Godot-cpp
-    set(GODOTCPP_GIT_URL "http://github.com/godotengine/godot-cpp.git" CACHE STRING "The git url of godot-cpp to fetch")
-    set(GODOTCPP_GIT_BRANCH "master" CACHE STRING "The git branch of godot-cpp to fetch")
-
-    fetchcontent_declare(godot-cpp
-        GIT_REPOSITORY ${GODOTCPP_GIT_URL}
-        GIT_TAG ${GODOTCPP_GIT_BRANCH}
-        GIT_PROGRESS ON
-        SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/godot-cpp"
+find_program(GIT git REQUIRED)
+
+# Ensure godot-cpp submodule has been updated
+if(NOT EXISTS "${CMAKE_CURRENT_LIST_DIR}/godot-cpp/src")
+    message(NOTICE "godot-cpp bindings source not found")
+    message(NOTICE "initializing/updating the godot-cpp submodule...")
+
+    # update the c++ bindings submodule to populate it with the necessary source for the library
+    execute_process(
+        COMMAND git submodule update --init godot-cpp
+        WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}
+        COMMAND_ERROR_IS_FATAL ANY
     )
-    fetchcontent_makeavailable(godot-cpp)
 endif()
+add_subdirectory(godot-cpp SYSTEM)
+
+# Add godot-cpp's module path and include the exported functions.
+# This is made available for documentation generation
+set(CMAKE_MODULE_PATH "${CMAKE_MODULE_PATH};${godot-cpp_SOURCE_DIR}/cmake")
+include(GodotCPPModule)
+
+# The godot-cpp target has some of useful properties attached that can be retrieved like so.
+get_target_property(GODOTCPP_SUFFIX godot::cpp GODOTCPP_SUFFIX)
+get_target_property(GODOTCPP_PLATFORM godot::cpp GODOTCPP_PLATFORM)
 
-# Now we can specify our own project.
+# Now we can specify our own project which will inherit any global cmake properties or variables that have been defined.
 project(godot-cpp-template
     VERSION 1.0
     DESCRIPTION "This repository serves as a quickstart template for GDExtension development with Godot 4.0+."
     HOMEPAGE_URL "https://github.com/enetheru/godot-cpp-template/tree/main"
     LANGUAGES CXX
 )
 
-# The PROJECT_NAME stores the name of the last called project()
-add_library(${PROJECT_NAME} SHARED)
+add_library(${LIBNAME} SHARED)
 
-target_sources(${PROJECT_NAME}
+target_sources(${LIBNAME}
     PRIVATE
     src/register_types.cpp
     src/register_types.h
 )
 
-target_link_libraries(${PROJECT_NAME} PRIVATE godot-cpp.editor)
+# Fetch a list of the xml files to use for documentation and add to our target
+file(GLOB_RECURSE DOC_XML LIST_DIRECTORIES NO CONFIGURE_DEPENDS "${PROJECT_SOURCE_DIR}/doc_classes/*.xml")
+
+# conditionally add doc data to compile output
+if(DOC_XML)
+    if(GODOTCPP_TARGET MATCHES "editor|template_debug")
+        target_doc_sources(${LIBNAME} ${DOC_XML})
+    endif()
+endif()
 
-# The godot targets have a couple of useful properties attached to them
-get_target_property(GODOTCPP_SUFFIX godot-cpp.editor GODOTCPP_SUFFIX)
+target_link_libraries(${LIBNAME} PRIVATE godot-cpp)
 
-set_target_properties(${PROJECT_NAME}
+set_target_properties(${LIBNAME}
     PROPERTIES
-    #The generator expression here prevents a subdir from being created.
-    RUNTIME_OUTPUT_DIRECTORY "$<1:${CMAKE_RUNTIME_OUTPUT_DIRECTORY}>"
-    # name format project.<platform>.<target>[.dev][.double].<arch>[.custom_suffix]
-    OUTPUT_NAME "${PROJECT_NAME}${GODOTCPP_SUFFIX}"
+    # The generator expression here prevents msvc from adding a Debug or Release subdir.
+    RUNTIME_OUTPUT_DIRECTORY "$<1:${PROJECT_SOURCE_DIR}/bin/${GODOTCPP_PLATFORM}>"
+
+    PREFIX ""
+    OUTPUT_NAME "${LIBNAME}${GODOTCPP_SUFFIX}"
+)
+
+set(GODOT_PROJECT_BINARY_DIR "${PROJECT_SOURCE_DIR}/${GODOT_PROJECT_DIR}/bin/${GODOTCPP_PLATFORM}")
+
+add_custom_command(TARGET ${LIBNAME} POST_BUILD
+    COMMAND ${CMAKE_COMMAND} -E copy "$<TARGET_FILE:${LIBNAME}>" "${GODOT_PROJECT_BINARY_DIR}/$<TARGET_FILE_NAME:${LIBNAME}>"
 )