diff --git a/godot-cpp-3.x/SConstruct b/godot-cpp-3.x/SConstruct index f653d54..44f66a5 100644 --- a/godot-cpp-3.x/SConstruct +++ b/godot-cpp-3.x/SConstruct @@ -170,6 +170,14 @@ opts.Add( True, ) ) +opts.Add( + PathVariable( + "build_profile", + "Path to a file containing a feature build profile", + default=env.get("build_profile", None), + validator=lambda key, val, env: val if os.path.isabs(val) else os.path.join(env.Dir("#").abspath, val), + ) +) opts.Add(BoolVariable("build_library", "Build the godot-cpp library.", True)) diff --git a/godot-cpp-3.x/binding_generator.py b/godot-cpp-3.x/binding_generator.py index da4bb61..e5bd040 100644 --- a/godot-cpp-3.x/binding_generator.py +++ b/godot-cpp-3.x/binding_generator.py @@ -12,14 +12,115 @@ def correct_method_name(method_list): method["name"] = "get_node_internal" +def is_class_included(class_name, build_profile): + """ + Check if an engine class should be included. + This removes classes according to a build profile of enabled or disabled classes. + """ + included = build_profile.get("enabled_classes", []) + excluded = build_profile.get("disabled_classes", []) + if included: + return class_name in included + if excluded: + return class_name not in excluded + return True + + +def parse_build_profile(profile_filepath, api): + if profile_filepath == "": + return {} + print("Using feature build profile: " + profile_filepath) + + with open(profile_filepath, encoding="utf-8") as profile_file: + profile = json.load(profile_file) + + api_dict = {} + parents = {} + children = {} + for engine_class in api: + api_dict[engine_class["name"]] = engine_class + parent = engine_class.get("base_class", "") + child = engine_class["name"] + parents[child] = parent + if parent == "": + continue + children[parent] = children.get(parent, []) + children[parent].append(child) + + # Parse methods dependencies + deps = {} + reverse_deps = {} + for name, engine_class in api_dict.items(): + ref_cls = set() + for method in engine_class.get("methods", []): + rtype = method.get("return_value", {}).get("type", "") + args = [a["type"] for a in method.get("arguments", [])] + if rtype in api_dict: + ref_cls.add(rtype) + for arg in args: + if arg in api_dict: + ref_cls.add(arg) + deps[engine_class["name"]] = set(filter(lambda x: x != name, ref_cls)) + for acls in ref_cls: + if acls == name: + continue + reverse_deps[acls] = reverse_deps.get(acls, set()) + reverse_deps[acls].add(name) + + included = [] + front = list(profile.get("enabled_classes", [])) + if front: + # These must always be included + front.append("ConfigFile") + front.append("ClassDB") + while front: + cls = front.pop() + if cls in included: + continue + included.append(cls) + parent = parents.get(cls, "") + if parent: + front.append(parent) + for rcls in deps.get(cls, set()): + if rcls in included or rcls in front: + continue + front.append(rcls) + + excluded = [] + front = list(profile.get("disabled_classes", [])) + while front: + cls = front.pop() + if cls in excluded: + continue + excluded.append(cls) + front += children.get(cls, []) + for rcls in reverse_deps.get(cls, set()): + if rcls in excluded or rcls in front: + continue + front.append(rcls) + + if included and excluded: + print( + "WARNING: Cannot specify both 'enabled_classes' and 'disabled_classes' in build profile. 'disabled_classes' will be ignored." + ) + + return { + "enabled_classes": included, + "disabled_classes": excluded, + } + + classes = [] -def get_file_list(api_filepath, output_dir, headers=False, sources=False): +def get_file_list(api_filepath, output_dir, headers=False, sources=False, profile_filepath=""): global classes + files = [] with open(api_filepath) as api_file: classes = json.load(api_file) + build_profile = parse_build_profile(profile_filepath, classes) + include_gen_folder = Path(output_dir) / "include" / "gen" source_gen_folder = Path(output_dir) / "src" / "gen" for _class in classes: @@ -27,7 +128,7 @@ def get_file_list(api_filepath, output_dir, headers=False, sources=False): source_filename = source_gen_folder / (strip_name(_class["name"]) + ".cpp") if headers: files.append(str(header_filename.as_posix())) - if sources: + if sources and is_class_included(_class["name"], build_profile): files.append(str(source_filename.as_posix())) icall_header_filename = include_gen_folder / "__icalls.hpp" register_types_filename = source_gen_folder / "__register_types.cpp" @@ -40,27 +141,32 @@ def get_file_list(api_filepath, output_dir, headers=False, sources=False): return files -def print_file_list(api_filepath, output_dir, headers=False, sources=False): - for f in get_file_list(api_filepath, output_dir, headers, sources): +def print_file_list(api_filepath, output_dir, headers=False, sources=False, profile_filepath=""): + for f in get_file_list(api_filepath, output_dir, headers, sources, profile_filepath): print(f, end=";") def scons_emit_files(target, source, env): - files = [env.File(f) for f in get_file_list(str(source[0]), target[0].abspath, True, True)] + profile_filepath = env.get("build_profile", "") + if profile_filepath and not Path(profile_filepath).is_absolute(): + profile_filepath = str((Path(env.Dir("#").abspath) / profile_filepath).as_posix()) + + files = [env.File(f) for f in get_file_list(str(source[0]), target[0].abspath, True, True, profile_filepath)] env.Clean(target, files) env["godot_cpp_gen_dir"] = target[0].abspath return files, source def scons_generate_bindings(target, source, env): - generate_bindings(str(source[0]), env["generate_template_get_node"], env["godot_cpp_gen_dir"]) + generate_bindings(str(source[0]), env["generate_template_get_node"], env["godot_cpp_gen_dir"], env["build_profile"]) return None -def generate_bindings(api_filepath, use_template_get_node, output_dir="."): +def generate_bindings(api_filepath, use_template_get_node, output_dir=".", profile_filepath=""): global classes with open(api_filepath) as api_file: classes = json.load(api_file) + build_profile = parse_build_profile(profile_filepath, classes) icalls = set() include_gen_folder = Path(output_dir) / "include" / "gen" @@ -97,7 +203,7 @@ def generate_bindings(api_filepath, use_template_get_node, output_dir="."): init_method_bindings_filename = source_gen_folder / "__init_method_bindings.cpp" with init_method_bindings_filename.open("w+") as init_method_bindings_file: - init_method_bindings_file.write(generate_init_method_bindings(classes)) + init_method_bindings_file.write(generate_init_method_bindings(list(filter(lambda x: is_class_included(x["name"], build_profile), classes)))) def is_reference_type(t):