Use build_profile to improve build times

.github/workflows/build-addon-on-push.yml

@@ -77,8 +77,8 @@ jobs:
       - name: Create extension library
         run: |
           cd aar
-          scons platform=${{ matrix.platform }} target=template_debug ${{ matrix.flags }} custom_api_file=thirdparty/godot_cpp_gdextension_api/extension_api.json
-          scons platform=${{ matrix.platform }} target=template_release ${{ matrix.flags }} custom_api_file=thirdparty/godot_cpp_gdextension_api/extension_api.json
+          scons platform=${{ matrix.platform }} target=template_debug ${{ matrix.flags }} custom_api_file=thirdparty/godot_cpp_gdextension_api/extension_api.json build_profile=thirdparty/godot_cpp_build_profile/build_profile.json
+          scons platform=${{ matrix.platform }} target=template_release ${{ matrix.flags }} custom_api_file=thirdparty/godot_cpp_gdextension_api/extension_api.json build_profile=thirdparty/godot_cpp_build_profile/build_profile.json
           cd ..
 
       # On Android we build our loaders and build our extension with gradlew
@@ -94,10 +94,10 @@ jobs:
       - name: Create Godot-CPP library
         run: |
           cd aar/thirdparty/godot-cpp
-          scons platform=${{ matrix.platform }} target=template_debug arch=arm64 custom_api_file=../godot_cpp_gdextension_api/extension_api.json
-          scons platform=${{ matrix.platform }} target=template_release arch=arm64 custom_api_file=../godot_cpp_gdextension_api/extension_api.json
-          scons platform=${{ matrix.platform }} target=template_debug arch=x86_64 custom_api_file=../godot_cpp_gdextension_api/extension_api.json
-          scons platform=${{ matrix.platform }} target=template_release arch=x86_64 custom_api_file=../godot_cpp_gdextension_api/extension_api.json
+          scons platform=${{ matrix.platform }} target=template_debug arch=arm64 custom_api_file=../godot_cpp_gdextension_api/extension_api.json build_profile=../godot_cpp_build_profile/build_profile.json
+          scons platform=${{ matrix.platform }} target=template_release arch=arm64 custom_api_file=../godot_cpp_gdextension_api/extension_api.json build_profile=../godot_cpp_build_profile/build_profile.json
+          scons platform=${{ matrix.platform }} target=template_debug arch=x86_64 custom_api_file=../godot_cpp_gdextension_api/extension_api.json build_profile=../godot_cpp_build_profile/build_profile.json
+          scons platform=${{ matrix.platform }} target=template_release arch=x86_64 custom_api_file=../godot_cpp_gdextension_api/extension_api.json build_profile=../godot_cpp_build_profile/build_profile.json
           cd ../../..
         if: matrix.platform == 'android'
       - name: Create Godot OpenXR Vendors AARs

thirdparty/godot_cpp_build_profile/build_profile.json

@@ -0,0 +1,63 @@
+{
+    "enabled_classes": [
+        "ArrayMesh",
+        "BaseMaterial3D",
+        "BoxMesh",
+        "BoxShape3D",
+        "CollisionShape3D",
+        "ConcavePolygonShape3D",
+        "Curve",
+        "EditorExportPlatform",
+        "EditorExportPlatformAndroid",
+        "EditorExportPlugin",
+        "EditorPlugin",
+        "Engine",
+        "FileAccess",
+        "GLTFDocument",
+        "GLTFState",
+        "GeometryInstance3D",
+        "Gradient",
+        "Image",
+        "MainLoop",
+        "Material",
+        "Mesh",
+        "MeshConvexDecompositionSettings",
+        "MeshInstance3D",
+        "Node",
+        "Node3D",
+        "OS",
+        "Object",
+        "OpenXRAPIExtension",
+        "OpenXRExtensionWrapperExtension",
+        "OpenXRInterface",
+        "PackedScene",
+        "PlaneMesh",
+        "PrimitiveMesh",
+        "ProjectSettings",
+        "RefCounted",
+        "Resource",
+        "SceneTree",
+        "Shader",
+        "ShaderMaterial",
+        "Shape3D",
+        "Shortcut",
+        "Skeleton3D",
+        "SkeletonModifier3D",
+        "StandardMaterial3D",
+        "SurfaceTool",
+        "Viewport",
+        "VisualInstance3D",
+        "XRAnchor3D",
+        "XRBodyTracker",
+        "XRFaceTracker",
+        "XRHandModifier3D",
+        "XRHandTracker",
+        "XRInterface",
+        "XRNode3D",
+        "XROrigin3D",
+        "XRPose",
+        "XRPositionalTracker",
+        "XRServer",
+        "XRTracker"
+    ]
+}

thirdparty/godot_cpp_build_profile/create_build_profile.py

@@ -0,0 +1,93 @@
+#!/usr/bin/env python
+
+import os
+import re
+import json
+
+SOURCE_DIRS = [
+    '../../common',
+    '../../godotopenxrkhronos',
+    '../../godotopenxrlynx',
+    '../../godotopenxrmeta',
+    '../../godotopenxrpico',
+]
+
+GODOT_CPP_HEADERS = "../godot-cpp/gen/include/godot_cpp/classes"
+#GODOT_CPP_SOURCES = "../godot-cpp/gen/src/classes"
+
+INCLUDE_PATTERN = re.compile(r'#include <godot_cpp/classes/(\w+)\.hpp>')
+CLASS_PATTERN = re.compile(r'class\s+(\w+)\s*:\s*public')
+
+processed_files = {}
+class_list = []
+
+def find_includes(file_path):
+    """
+    Finds all the includes in a given file and returns the list of CLASS names.
+    """
+    includes = []
+    try:
+        with open(file_path, 'r') as file:
+            content = file.read()
+            includes = INCLUDE_PATTERN.findall(content)
+    except FileNotFoundError:
+        print(f"File not found: {file_path}")
+    return includes
+
+def find_primary_class(file_path):
+    """
+    Finds the primary class name in a given .hpp file by looking for 'class ClassName : public'.
+    """
+    try:
+        with open(file_path, 'r') as file:
+            for line in file:
+                match = CLASS_PATTERN.search(line)
+                if match:
+                    return match.group(1)
+    except FileNotFoundError:
+        print(f"File not found: {file_path}")
+    return None
+
+def process_file(file_path, top_level=False):
+    """
+    Processes a given file for includes and processes the included files recursively.
+    """
+    if file_path in processed_files:
+        return
+
+    processed_files[file_path] = True
+
+    if not top_level and file_path.endswith('.hpp'):
+        primary_class = find_primary_class(file_path)
+        if primary_class and primary_class not in class_list:
+            class_list.append(primary_class)
+
+    includes = find_includes(file_path)
+    for include_name in includes:
+        hpp_file = f"{GODOT_CPP_HEADERS}/{include_name}.hpp"
+        #cpp_file = f"{GODOT_CPP_SOURCES}/{include_name}.cpp"
+
+        if os.path.exists(hpp_file):
+            process_file(hpp_file)
+        #if os.path.exists(cpp_file):
+        #    process_file(cpp_file)
+
+def main():
+    for dir in SOURCE_DIRS:
+        for root, _, files in os.walk(dir):
+            for file in files:
+                if file.endswith('.cpp') or file.endswith('.h'):
+                    file_path = os.path.join(root, file)
+                    process_file(file_path, True)
+
+    class_list.sort()
+
+    build_profile = {
+        "enabled_classes": class_list
+    }
+
+    with open("build_profile.json", "wt") as file:
+        json.dump(build_profile, file, indent=4)
+
+if __name__ == "__main__":
+    main()