Merge pull request #62996 from reduz/feature-build-profiles

17 files changed, 1267 insertions, 23 deletions

diff --git a/SConstruct b/SConstruct
index 74f9d1158c..f765a26c44 100644
--- a/SConstruct
+++ b/SConstruct
@@ -195,7 +195,7 @@ opts.Add("extra_suffix", "Custom extra suffix added to the base filename of all
 opts.Add(BoolVariable("vsproj", "Generate a Visual Studio solution", False))
 opts.Add(BoolVariable("disable_3d", "Disable 3D nodes for a smaller executable", False))
 opts.Add(BoolVariable("disable_advanced_gui", "Disable advanced GUI nodes and behaviors", False))
-opts.Add("disable_classes", "Disable given classes (comma separated)", "")
+opts.Add("build_feature_profile", "Path to a file containing a feature build profile", "")
 opts.Add(BoolVariable("modules_enabled_by_default", "If no, disable all modules except ones explicitly enabled", True))
 opts.Add(BoolVariable("no_editor_splash", "Don't use the custom splash screen for the editor", True))
 opts.Add("system_certs_path", "Use this path as SSL certificates default for editor (for package maintainers)", "")
@@ -752,7 +752,27 @@ if selected_platform in platform_list:
 
     if env["tools"]:
         env.Append(CPPDEFINES=["TOOLS_ENABLED"])
-    methods.write_disabled_classes(env["disable_classes"].split(","))
+
+    disabled_classes = []
+
+    if env["build_feature_profile"] != "":
+        print("Using build feature profile: " + env["build_feature_profile"])
+        import json
+
+        try:
+            ft = json.load(open(env["build_feature_profile"]))
+            if "disabled_classes" in ft:
+                disabled_classes = ft["disabled_classes"]
+            if "disabled_build_options" in ft:
+                dbo = ft["disabled_build_options"]
+                for c in dbo:
+                    env[c] = dbo[c]
+        except:
+            print("Error opening feature build profile: " + env["build_feature_profile"])
+            Exit(255)
+
+    methods.write_disabled_classes(disabled_classes)
+
     if env["disable_3d"]:
         if env["tools"]:
             print(
diff --git a/core/io/resource_format_binary.cpp b/core/io/resource_format_binary.cpp
index b1c50e829c..0f4bc1e19c 100644
--- a/core/io/resource_format_binary.cpp
+++ b/core/io/resource_format_binary.cpp
@@ -865,6 +865,22 @@ String ResourceLoaderBinary::get_unicode_string() {
 	return s;
 }
 
+void ResourceLoaderBinary::get_classes_used(Ref<FileAccess> p_f, HashSet<StringName> *p_classes) {
+	open(p_f, false, true);
+	if (error) {
+		return;
+	}
+
+	for (int i = 0; i < internal_resources.size(); i++) {
+		p_f->seek(internal_resources[i].offset);
+		String t = get_unicode_string();
+		ERR_FAIL_COND(p_f->get_error() != OK);
+		if (t != String()) {
+			p_classes->insert(t);
+		}
+	}
+}
+
 void ResourceLoaderBinary::get_dependencies(Ref<FileAccess> p_f, List<String> *p_dependencies, bool p_add_types) {
 	open(p_f, false, true);
 	if (error) {
@@ -1337,6 +1353,16 @@ Error ResourceFormatLoaderBinary::rename_dependencies(const String &p_path, cons
 	return OK;
 }
 
+void ResourceFormatLoaderBinary::get_classes_used(const String &p_path, HashSet<StringName> *r_classes) {
+	Ref<FileAccess> f = FileAccess::open(p_path, FileAccess::READ);
+	ERR_FAIL_COND_MSG(f.is_null(), "Cannot open file '" + p_path + "'.");
+
+	ResourceLoaderBinary loader;
+	loader.local_path = ProjectSettings::get_singleton()->localize_path(p_path);
+	loader.res_path = loader.local_path;
+	loader.get_classes_used(f, r_classes);
+}
+
 String ResourceFormatLoaderBinary::get_resource_type(const String &p_path) const {
 	Ref<FileAccess> f = FileAccess::open(p_path, FileAccess::READ);
 	if (f.is_null()) {
diff --git a/core/io/resource_format_binary.h b/core/io/resource_format_binary.h
index 5da880ddb8..2b043302fd 100644
--- a/core/io/resource_format_binary.h
+++ b/core/io/resource_format_binary.h
@@ -101,6 +101,7 @@ public:
 	void open(Ref<FileAccess> p_f, bool p_no_resources = false, bool p_keep_uuid_paths = false);
 	String recognize(Ref<FileAccess> p_f);
 	void get_dependencies(Ref<FileAccess> p_f, List<String> *p_dependencies, bool p_add_types);
+	void get_classes_used(Ref<FileAccess> p_f, HashSet<StringName> *p_classes);
 
 	ResourceLoaderBinary() {}
 };
@@ -112,6 +113,7 @@ public:
 	virtual void get_recognized_extensions(List<String> *p_extensions) const;
 	virtual bool handles_type(const String &p_type) const;
 	virtual String get_resource_type(const String &p_path) const;
+	virtual void get_classes_used(const String &p_path, HashSet<StringName> *r_classes);
 	virtual ResourceUID::ID get_resource_uid(const String &p_path) const;
 	virtual void get_dependencies(const String &p_path, List<String> *p_dependencies, bool p_add_types = false);
 	virtual Error rename_dependencies(const String &p_path, const HashMap<String, String> &p_map);
diff --git a/core/io/resource_importer.cpp b/core/io/resource_importer.cpp
index 934cb780e6..e059fc842b 100644
--- a/core/io/resource_importer.cpp
+++ b/core/io/resource_importer.cpp
@@ -352,6 +352,16 @@ Variant ResourceFormatImporter::get_resource_metadata(const String &p_path) cons
 
 	return pat.metadata;
 }
+void ResourceFormatImporter::get_classes_used(const String &p_path, HashSet<StringName> *r_classes) {
+	PathAndType pat;
+	Error err = _get_path_and_type(p_path, pat);
+
+	if (err != OK) {
+		return;
+	}
+
+	ResourceLoader::get_classes_used(pat.path, r_classes);
+}
 
 void ResourceFormatImporter::get_dependencies(const String &p_path, List<String> *p_dependencies, bool p_add_types) {
 	PathAndType pat;
diff --git a/core/io/resource_importer.h b/core/io/resource_importer.h
index 0c7909df06..d0ea98b598 100644
--- a/core/io/resource_importer.h
+++ b/core/io/resource_importer.h
@@ -65,12 +65,12 @@ public:
 	virtual bool handles_type(const String &p_type) const;
 	virtual String get_resource_type(const String &p_path) const;
 	virtual ResourceUID::ID get_resource_uid(const String &p_path) const;
-
 	virtual Variant get_resource_metadata(const String &p_path) const;
 	virtual bool is_import_valid(const String &p_path) const;
 	virtual void get_dependencies(const String &p_path, List<String> *p_dependencies, bool p_add_types = false);
 	virtual bool is_imported(const String &p_path) const { return recognize_path(p_path); }
 	virtual String get_import_group_file(const String &p_path) const;
+	virtual void get_classes_used(const String &p_path, HashSet<StringName> *r_classes);
 	virtual bool exists(const String &p_path) const;
 
 	virtual int get_import_order(const String &p_path) const;
diff --git a/core/io/resource_loader.cpp b/core/io/resource_loader.cpp
index 2cd455475c..fc4177004b 100644
--- a/core/io/resource_loader.cpp
+++ b/core/io/resource_loader.cpp
@@ -76,6 +76,21 @@ bool ResourceFormatLoader::handles_type(const String &p_type) const {
 	return false;
 }
 
+void ResourceFormatLoader::get_classes_used(const String &p_path, HashSet<StringName> *r_classes) {
+	Vector<String> ret;
+	if (GDVIRTUAL_CALL(_get_classes_used, p_path, ret)) {
+		for (int i = 0; i < ret.size(); i++) {
+			r_classes->insert(ret[i]);
+		}
+		return;
+	}
+
+	String res = get_resource_type(p_path);
+	if (!res.is_empty()) {
+		r_classes->insert(res);
+	}
+}
+
 String ResourceFormatLoader::get_resource_type(const String &p_path) const {
 	String ret;
 
@@ -180,6 +195,7 @@ void ResourceFormatLoader::_bind_methods() {
 	GDVIRTUAL_BIND(_get_dependencies, "path", "add_types");
 	GDVIRTUAL_BIND(_rename_dependencies, "path", "renames");
 	GDVIRTUAL_BIND(_exists, "path");
+	GDVIRTUAL_BIND(_get_classes_used, "path");
 	GDVIRTUAL_BIND(_load, "path", "original_path", "use_sub_threads", "cache_mode");
 }
 
@@ -730,6 +746,18 @@ Error ResourceLoader::rename_dependencies(const String &p_path, const HashMap<St
 	return OK; // ??
 }
 
+void ResourceLoader::get_classes_used(const String &p_path, HashSet<StringName> *r_classes) {
+	String local_path = _validate_local_path(p_path);
+
+	for (int i = 0; i < loader_count; i++) {
+		if (!loader[i]->recognize_path(local_path)) {
+			continue;
+		}
+
+		return loader[i]->get_classes_used(p_path, r_classes);
+	}
+}
+
 String ResourceLoader::get_resource_type(const String &p_path) {
 	String local_path = _validate_local_path(p_path);
 
diff --git a/core/io/resource_loader.h b/core/io/resource_loader.h
index 815dd1dd72..91ba930176 100644
--- a/core/io/resource_loader.h
+++ b/core/io/resource_loader.h
@@ -55,6 +55,7 @@ protected:
 	GDVIRTUAL1RC(String, _get_resource_type, String)
 	GDVIRTUAL1RC(ResourceUID::ID, _get_resource_uid, String)
 	GDVIRTUAL2RC(Vector<String>, _get_dependencies, String, bool)
+	GDVIRTUAL1RC(Vector<String>, _get_classes_used, String)
 	GDVIRTUAL2RC(int64_t, _rename_dependencies, String, Dictionary)
 	GDVIRTUAL1RC(bool, _exists, String)
 
@@ -67,6 +68,7 @@ public:
 	virtual void get_recognized_extensions_for_type(const String &p_type, List<String> *p_extensions) const;
 	virtual bool recognize_path(const String &p_path, const String &p_for_type = String()) const;
 	virtual bool handles_type(const String &p_type) const;
+	virtual void get_classes_used(const String &p_path, HashSet<StringName> *r_classes);
 	virtual String get_resource_type(const String &p_path) const;
 	virtual ResourceUID::ID get_resource_uid(const String &p_path) const;
 	virtual void get_dependencies(const String &p_path, List<String> *p_dependencies, bool p_add_types = false);
@@ -170,6 +172,7 @@ public:
 	static void get_recognized_extensions_for_type(const String &p_type, List<String> *p_extensions);
 	static void add_resource_format_loader(Ref<ResourceFormatLoader> p_format_loader, bool p_at_front = false);
 	static void remove_resource_format_loader(Ref<ResourceFormatLoader> p_format_loader);
+	static void get_classes_used(const String &p_path, HashSet<StringName> *r_classes);
 	static String get_resource_type(const String &p_path);
 	static ResourceUID::ID get_resource_uid(const String &p_path);
 	static void get_dependencies(const String &p_path, List<String> *p_dependencies, bool p_add_types = false);
diff --git a/core/object/class_db.cpp b/core/object/class_db.cpp
index ac008dad88..d67315f20d 100644
--- a/core/object/class_db.cpp
+++ b/core/object/class_db.cpp
@@ -305,6 +305,13 @@ void ClassDB::add_compatibility_class(const StringName &p_class, const StringNam
 	compat_classes[p_class] = p_fallback;
 }
 
+StringName ClassDB::get_compatibility_class(const StringName &p_class) {
+	if (compat_classes.has(p_class)) {
+		return compat_classes[p_class];
+	}
+	return StringName();
+}
+
 Object *ClassDB::instantiate(const StringName &p_class) {
 	ClassInfo *ti;
 	{
diff --git a/core/object/class_db.h b/core/object/class_db.h
index 1d26eb18f1..8b6a260d86 100644
--- a/core/object/class_db.h
+++ b/core/object/class_db.h
@@ -357,6 +357,7 @@ public:
 	static bool is_resource_extension(const StringName &p_extension);
 
 	static void add_compatibility_class(const StringName &p_class, const StringName &p_fallback);
+	static StringName get_compatibility_class(const StringName &p_class);
 
 	static void set_current_api(APIType p_api);
 	static APIType get_current_api();
@@ -418,16 +419,16 @@ _FORCE_INLINE_ Vector<Error> errarray(P... p_args) {
 
 #endif
 
-#define GDREGISTER_CLASS(m_class)                    \
-	if (!GD_IS_DEFINED(ClassDB_Disable_##m_class)) { \
-		::ClassDB::register_class<m_class>();        \
+#define GDREGISTER_CLASS(m_class)             \
+	if (m_class::_class_is_enabled) {         \
+		::ClassDB::register_class<m_class>(); \
 	}
-#define GDREGISTER_VIRTUAL_CLASS(m_class)            \
-	if (!GD_IS_DEFINED(ClassDB_Disable_##m_class)) { \
-		::ClassDB::register_class<m_class>(true);    \
+#define GDREGISTER_VIRTUAL_CLASS(m_class)         \
+	if (m_class::_class_is_enabled) {             \
+		::ClassDB::register_class<m_class>(true); \
 	}
 #define GDREGISTER_ABSTRACT_CLASS(m_class)             \
-	if (!GD_IS_DEFINED(ClassDB_Disable_##m_class)) {   \
+	if (m_class::_class_is_enabled) {                  \
 		::ClassDB::register_abstract_class<m_class>(); \
 	}
 
diff --git a/core/object/object.h b/core/object/object.h
index 705d6451dc..17f75a4e1d 100644
--- a/core/object/object.h
+++ b/core/object/object.h
@@ -358,6 +358,7 @@ private:
 	friend class ::ClassDB;                                                                                                                      \
                                                                                                                                                  \
 public:                                                                                                                                          \
+	static constexpr bool _class_is_enabled = !bool(GD_IS_DEFINED(ClassDB_Disable_##m_class)) && m_inherits::_class_is_enabled;                  \
 	virtual String get_class() const override {                                                                                                  \
 		if (_get_extension()) {                                                                                                                  \
 			return _get_extension()->class_name.operator String();                                                                               \
@@ -667,6 +668,8 @@ public: // Should be protected, but bug in clang++.
 	_FORCE_INLINE_ static void register_custom_data_to_otdb() {}
 
 public:
+	static constexpr bool _class_is_enabled = true;
+
 	void notify_property_list_changed();
 
 	static void *get_class_ptr_static() {
diff --git a/doc/classes/ResourceFormatLoader.xml b/doc/classes/ResourceFormatLoader.xml
index 36b64f5a86..fef94b5f3b 100644
--- a/doc/classes/ResourceFormatLoader.xml
+++ b/doc/classes/ResourceFormatLoader.xml
@@ -17,6 +17,12 @@
 			<description>
 			</description>
 		</method>
+		<method name="_get_classes_used" qualifiers="virtual const">
+			<return type="PackedStringArray" />
+			<argument index="0" name="path" type="String" />
+			<description>
+			</description>
+		</method>
 		<method name="_get_dependencies" qualifiers="virtual const">
 			<return type="PackedStringArray" />
 			<argument index="0" name="path" type="String" />
diff --git a/editor/editor_build_profile.cpp b/editor/editor_build_profile.cpp
new file mode 100644
index 0000000000..6a5604290f
--- /dev/null
+++ b/editor/editor_build_profile.cpp
@@ -0,0 +1,797 @@
+/*************************************************************************/
+/*  editor_build_profile.cpp                                             */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md).   */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+#include "editor_build_profile.h"
+
+#include "core/io/dir_access.h"
+#include "core/io/json.h"
+#include "editor/editor_file_dialog.h"
+#include "editor/editor_file_system.h"
+#include "editor/editor_node.h"
+#include "editor/editor_property_name_processor.h"
+#include "editor/editor_scale.h"
+#include "editor/editor_settings.h"
+
+const char *EditorBuildProfile::build_option_identifiers[BUILD_OPTION_MAX] = {
+	// This maps to SCons build options.
+	"disable_3d",
+	"disable_2d_physics",
+	"disable_3d_physics",
+	"disable_navigation",
+	"openxr",
+	"opengl3",
+	"vulkan",
+};
+
+const bool EditorBuildProfile::build_option_disable_values[BUILD_OPTION_MAX] = {
+	// This maps to SCons build options.
+	true,
+	true,
+	true,
+	true,
+	false,
+	false,
+	false
+};
+
+void EditorBuildProfile::set_disable_class(const StringName &p_class, bool p_disabled) {
+	if (p_disabled) {
+		disabled_classes.insert(p_class);
+	} else {
+		disabled_classes.erase(p_class);
+	}
+}
+
+bool EditorBuildProfile::is_class_disabled(const StringName &p_class) const {
+	if (p_class == StringName()) {
+		return false;
+	}
+	return disabled_classes.has(p_class) || is_class_disabled(ClassDB::get_parent_class_nocheck(p_class));
+}
+
+void EditorBuildProfile::set_item_collapsed(const StringName &p_class, bool p_collapsed) {
+	if (p_collapsed) {
+		collapsed_classes.insert(p_class);
+	} else {
+		collapsed_classes.erase(p_class);
+	}
+}
+
+bool EditorBuildProfile::is_item_collapsed(const StringName &p_class) const {
+	return collapsed_classes.has(p_class);
+}
+
+void EditorBuildProfile::set_disable_build_option(BuildOption p_build_option, bool p_disable) {
+	ERR_FAIL_INDEX(p_build_option, BUILD_OPTION_MAX);
+	build_options_disabled[p_build_option] = p_disable;
+}
+
+void EditorBuildProfile::clear_disabled_classes() {
+	disabled_classes.clear();
+	collapsed_classes.clear();
+}
+
+bool EditorBuildProfile::is_build_option_disabled(BuildOption p_build_option) const {
+	ERR_FAIL_INDEX_V(p_build_option, BUILD_OPTION_MAX, false);
+	return build_options_disabled[p_build_option];
+}
+
+bool EditorBuildProfile::get_build_option_disable_value(BuildOption p_build_option) {
+	ERR_FAIL_INDEX_V(p_build_option, BUILD_OPTION_MAX, false);
+	return build_option_disable_values[p_build_option];
+}
+
+void EditorBuildProfile::set_force_detect_classes(const String &p_classes) {
+	force_detect_classes = p_classes;
+}
+
+String EditorBuildProfile::get_force_detect_classes() const {
+	return force_detect_classes;
+}
+
+String EditorBuildProfile::get_build_option_name(BuildOption p_build_option) {
+	ERR_FAIL_INDEX_V(p_build_option, BUILD_OPTION_MAX, String());
+	const char *build_option_names[BUILD_OPTION_MAX] = {
+		TTRC("3D Engine"),
+		TTRC("2D Physics"),
+		TTRC("3D Physics"),
+		TTRC("Navigation"),
+		TTRC("XR"),
+		TTRC("RenderingDevice"),
+		TTRC("OpenGL"),
+		TTRC("Vulkan"),
+	};
+	return TTRGET(build_option_names[p_build_option]);
+}
+
+String EditorBuildProfile::get_build_option_description(BuildOption p_build_option) {
+	ERR_FAIL_INDEX_V(p_build_option, BUILD_OPTION_MAX, String());
+
+	const char *build_option_descriptions[BUILD_OPTION_MAX] = {
+		TTRC("3D Nodes as well as RenderingServer access to 3D features."),
+		TTRC("2D Physics nodes and PhysicsServer2D."),
+		TTRC("3D Physics nodes and PhysicsServer3D."),
+		TTRC("Navigation, both 2D and 3D."),
+		TTRC("XR (AR and VR)."),
+		TTRC("RenderingDevice based rendering (if disabled, the OpenGL back-end is required)."),
+		TTRC("OpenGL back-end (if disabled, the RenderingDevice back-end is required)."),
+		TTRC("Vulkan back-end of RenderingDevice."),
+	};
+
+	return TTRGET(build_option_descriptions[p_build_option]);
+}
+
+Error EditorBuildProfile::save_to_file(const String &p_path) {
+	Dictionary data;
+	data["type"] = "build_profile";
+	Array dis_classes;
+	for (const StringName &E : disabled_classes) {
+		dis_classes.push_back(String(E));
+	}
+	dis_classes.sort();
+	data["disabled_classes"] = dis_classes;
+
+	Dictionary dis_build_options;
+	for (int i = 0; i < BUILD_OPTION_MAX; i++) {
+		if (build_options_disabled[i]) {
+			dis_build_options[build_option_identifiers[i]] = build_option_disable_values[i];
+		}
+	}
+
+	data["disabled_build_options"] = dis_build_options;
+
+	if (!force_detect_classes.is_empty()) {
+		data["force_detect_classes"] = force_detect_classes;
+	}
+
+	Ref<FileAccess> f = FileAccess::open(p_path, FileAccess::WRITE);
+	ERR_FAIL_COND_V_MSG(f.is_null(), ERR_CANT_CREATE, "Cannot create file '" + p_path + "'.");
+
+	JSON json;
+	String text = json.stringify(data, "\t");
+	f->store_string(text);
+	return OK;
+}
+
+Error EditorBuildProfile::load_from_file(const String &p_path) {
+	Error err;
+	String text = FileAccess::get_file_as_string(p_path, &err);
+	if (err != OK) {
+		return err;
+	}
+
+	JSON json;
+	err = json.parse(text);
+	if (err != OK) {
+		ERR_PRINT("Error parsing '" + p_path + "' on line " + itos(json.get_error_line()) + ": " + json.get_error_message());
+		return ERR_PARSE_ERROR;
+	}
+
+	Dictionary data = json.get_data();
+
+	if (!data.has("type") || String(data["type"]) != "build_profile") {
+		ERR_PRINT("Error parsing '" + p_path + "', it's not a build profile.");
+		return ERR_PARSE_ERROR;
+	}
+
+	disabled_classes.clear();
+
+	if (data.has("disabled_classes")) {
+		Array disabled_classes_arr = data["disabled_classes"];
+		for (int i = 0; i < disabled_classes_arr.size(); i++) {
+			disabled_classes.insert(disabled_classes_arr[i]);
+		}
+	}
+
+	for (int i = 0; i < BUILD_OPTION_MAX; i++) {
+		build_options_disabled[i] = false;
+	}
+
+	if (data.has("disabled_build_options")) {
+		Dictionary disabled_build_options_arr = data["disabled_build_options"];
+		List<Variant> keys;
+		disabled_build_options_arr.get_key_list(&keys);
+
+		for (const Variant &K : keys) {
+			String key = K;
+
+			for (int i = 0; i < BUILD_OPTION_MAX; i++) {
+				String f = build_option_identifiers[i];
+				if (f == key) {
+					build_options_disabled[i] = true;
+					break;
+				}
+			}
+		}
+	}
+
+	if (data.has("force_detect_classes")) {
+		force_detect_classes = data["force_detect_classes"];
+	}
+
+	return OK;
+}
+
+void EditorBuildProfile::_bind_methods() {
+	ClassDB::bind_method(D_METHOD("set_disable_class", "class_name", "disable"), &EditorBuildProfile::set_disable_class);
+	ClassDB::bind_method(D_METHOD("is_class_disabled", "class_name"), &EditorBuildProfile::is_class_disabled);
+
+	ClassDB::bind_method(D_METHOD("set_disable_build_option", "build_option", "disable"), &EditorBuildProfile::set_disable_build_option);
+	ClassDB::bind_method(D_METHOD("is_build_option_disabled", "build_option"), &EditorBuildProfile::is_build_option_disabled);
+
+	ClassDB::bind_method(D_METHOD("get_build_option_name", "build_option"), &EditorBuildProfile::_get_build_option_name);
+
+	ClassDB::bind_method(D_METHOD("save_to_file", "path"), &EditorBuildProfile::save_to_file);
+	ClassDB::bind_method(D_METHOD("load_from_file", "path"), &EditorBuildProfile::load_from_file);
+
+	BIND_ENUM_CONSTANT(BUILD_OPTION_3D);
+	BIND_ENUM_CONSTANT(BUILD_OPTION_PHYSICS_2D);
+	BIND_ENUM_CONSTANT(BUILD_OPTION_PHYSICS_3D);
+	BIND_ENUM_CONSTANT(BUILD_OPTION_NAVIGATION);
+	BIND_ENUM_CONSTANT(BUILD_OPTION_XR);
+	BIND_ENUM_CONSTANT(BUILD_OPTION_RENDERING_DEVICE);
+	BIND_ENUM_CONSTANT(BUILD_OPTION_OPENGL);
+	BIND_ENUM_CONSTANT(BUILD_OPTION_VULKAN);
+	BIND_ENUM_CONSTANT(BUILD_OPTION_MAX);
+}
+
+EditorBuildProfile::EditorBuildProfile() {}
+
+//////////////////////////
+
+void EditorBuildProfileManager::_notification(int p_what) {
+	switch (p_what) {
+		case NOTIFICATION_READY: {
+			String last_file = EditorSettings::get_singleton()->get_project_metadata("build_profile", "last_file_path", "");
+			if (!last_file.is_empty()) {
+				_import_profile(last_file);
+			}
+			if (edited.is_null()) {
+				edited.instantiate();
+				_update_edited_profile();
+			}
+
+		} break;
+	}
+}
+
+void EditorBuildProfileManager::_profile_action(int p_action) {
+	last_action = Action(p_action);
+
+	switch (p_action) {
+		case ACTION_RESET: {
+			confirm_dialog->set_text("Reset the edited profile?");
+			confirm_dialog->popup_centered();
+		} break;
+		case ACTION_LOAD: {
+			import_profile->popup_file_dialog();
+		} break;
+		case ACTION_SAVE: {
+			if (!profile_path->get_text().is_empty()) {
+				Error err = edited->save_to_file(profile_path->get_text());
+				if (err != OK) {
+					EditorNode::get_singleton()->show_warning(TTR("File saving failed."));
+				}
+				break;
+			}
+			[[fallthrough]];
+		}
+		case ACTION_SAVE_AS: {
+			export_profile->popup_file_dialog();
+			export_profile->set_current_file(profile_path->get_text());
+		} break;
+		case ACTION_NEW: {
+			confirm_dialog->set_text("Create a new profile?");
+			confirm_dialog->popup_centered();
+		} break;
+		case ACTION_DETECT: {
+			confirm_dialog->set_text("This will scan all files in the current project to detect used classes.");
+			confirm_dialog->popup_centered();
+		} break;
+		case ACTION_MAX: {
+		} break;
+	}
+}
+
+void EditorBuildProfileManager::_find_files(EditorFileSystemDirectory *p_dir, const HashMap<String, DetectedFile> &p_cache, HashMap<String, DetectedFile> &r_detected) {
+	if (p_dir == nullptr) {
+		return;
+	}
+
+	for (int i = 0; i < p_dir->get_file_count(); i++) {
+		String p = p_dir->get_file_path(i);
+
+		uint64_t timestamp = 0;
+		String md5;
+
+		if (p_cache.has(p)) {
+			const DetectedFile &cache = p_cache[p];
+			// Check if timestamp and MD5 match.
+			timestamp = FileAccess::get_modified_time(p);
+			bool cache_valid = true;
+			if (cache.timestamp != timestamp) {
+				md5 = FileAccess::get_md5(p);
+				if (md5 != cache.md5) {
+					cache_valid = false;
+				}
+			}
+
+			if (cache_valid) {
+				r_detected.insert(p, cache);
+				continue;
+			}
+		}
+
+		// Not cached, or cache invalid.
+
+		DetectedFile cache;
+
+		HashSet<StringName> classes;
+		ResourceLoader::get_classes_used(p, &classes);
+
+		for (const StringName &E : classes) {
+			cache.classes.push_back(E);
+		}
+
+		if (md5.is_empty()) {
+			cache.timestamp = FileAccess::get_modified_time(p);
+			cache.md5 = FileAccess::get_md5(p);
+		} else {
+			cache.timestamp = timestamp;
+			cache.md5 = md5;
+		}
+
+		r_detected.insert(p, cache);
+	}
+
+	for (int i = 0; i < p_dir->get_subdir_count(); i++) {
+		_find_files(p_dir->get_subdir(i), p_cache, r_detected);
+	}
+}
+
+void EditorBuildProfileManager::_detect_classes() {
+	HashMap<String, DetectedFile> previous_file_cache;
+
+	Ref<FileAccess> f = FileAccess::open("res://.godot/editor/used_class_cache", FileAccess::READ);
+	if (f.is_valid()) {
+		while (!f->eof_reached()) {
+			String l = f->get_line();
+			Vector<String> fields = l.split("::");
+			if (fields.size() == 4) {
+				String path = fields[0];
+				DetectedFile df;
+				df.timestamp = fields[1].to_int();
+				df.md5 = fields[2];
+				df.classes = fields[3].split(",");
+				previous_file_cache.insert(path, df);
+			}
+		}
+		f.unref();
+	}
+
+	HashMap<String, DetectedFile> updated_file_cache;
+
+	_find_files(EditorFileSystem::get_singleton()->get_filesystem(), previous_file_cache, updated_file_cache);
+
+	HashSet<StringName> used_classes;
+
+	// Find classes and update the disk cache in the process.
+	f = FileAccess::open("res://.godot/editor/used_class_cache", FileAccess::WRITE);
+
+	for (const KeyValue<String, DetectedFile> &E : updated_file_cache) {
+		String l = E.key + "::" + itos(E.value.timestamp) + "::" + E.value.md5 + "::";
+		for (int i = 0; i < E.value.classes.size(); i++) {
+			String c = E.value.classes[i];
+			if (i > 0) {
+				l += ",";
+			}
+			l += c;
+			used_classes.insert(c);
+		}
+		f->store_line(l);
+	}
+
+	f.unref();
+
+	// Add forced ones.
+
+	Vector<String> force_detect = edited->get_force_detect_classes().split(",");
+	for (int i = 0; i < force_detect.size(); i++) {
+		String c = force_detect[i].strip_edges();
+		if (c.is_empty()) {
+			continue;
+		}
+		used_classes.insert(c);
+	}
+
+	// Filter all classes to discard inherited ones.
+
+	HashSet<StringName> all_used_classes;
+
+	for (const StringName &E : used_classes) {
+		StringName c = E;
+		if (!ClassDB::class_exists(c)) {
+			// Maybe this is an old class that got replaced? try getting compat class.
+			c = ClassDB::get_compatibility_class(c);
+			if (!c) {
+				// No luck, skip.
+				continue;
+			}
+		}
+		while (c) {
+			all_used_classes.insert(c);
+			c = ClassDB::get_parent_class(c);
+		}
+	}
+
+	edited->clear_disabled_classes();
+
+	List<StringName> all_classes;
+	ClassDB::get_class_list(&all_classes);
+
+	for (const StringName &E : all_classes) {
+		if (all_used_classes.has(E)) {
+			// This class is valid, do nothing.
+			continue;
+		}
+
+		StringName p = ClassDB::get_parent_class(E);
+		if (!p || all_used_classes.has(p)) {
+			// If no parent, or if the parent is enabled, then add to disabled classes.
+			// This way we avoid disabling redundant classes.
+			edited->set_disable_class(E, true);
+		}
+	}
+}
+
+void EditorBuildProfileManager::_action_confirm() {
+	switch (last_action) {
+		case ACTION_RESET: {
+			edited.instantiate();
+			_update_edited_profile();
+		} break;
+		case ACTION_LOAD: {
+		} break;
+		case ACTION_SAVE: {
+		} break;
+		case ACTION_SAVE_AS: {
+		} break;
+		case ACTION_NEW: {
+			profile_path->set_text("");
+			edited.instantiate();
+			_update_edited_profile();
+		} break;
+		case ACTION_DETECT: {
+			_detect_classes();
+			_update_edited_profile();
+		} break;
+		case ACTION_MAX: {
+		} break;
+	}
+}
+
+void EditorBuildProfileManager::_fill_classes_from(TreeItem *p_parent, const String &p_class, const String &p_selected) {
+	TreeItem *class_item = class_list->create_item(p_parent);
+	class_item->set_cell_mode(0, TreeItem::CELL_MODE_CHECK);
+	class_item->set_icon(0, EditorNode::get_singleton()->get_class_icon(p_class, "Node"));
+	String text = p_class;
+
+	bool disabled = edited->is_class_disabled(p_class);
+	if (disabled) {
+		class_item->set_custom_color(0, class_list->get_theme_color(SNAME("disabled_font_color"), SNAME("Editor")));
+	}
+
+	class_item->set_text(0, text);
+	class_item->set_editable(0, true);
+	class_item->set_selectable(0, true);
+	class_item->set_metadata(0, p_class);
+
+	bool collapsed = edited->is_item_collapsed(p_class);
+	class_item->set_collapsed(collapsed);
+
+	if (p_class == p_selected) {
+		class_item->select(0);
+	}
+	if (disabled) {
+		// Class disabled, do nothing else (do not show further).
+		return;
+	}
+
+	class_item->set_checked(0, true); // If it's not disabled, its checked.
+
+	List<StringName> child_classes;
+	ClassDB::get_direct_inheriters_from_class(p_class, &child_classes);
+	child_classes.sort_custom<StringName::AlphCompare>();
+
+	for (const StringName &name : child_classes) {
+		if (String(name).begins_with("Editor") || ClassDB::get_api_type(name) != ClassDB::API_CORE) {
+			continue;
+		}
+		_fill_classes_from(class_item, name, p_selected);
+	}
+}
+
+void EditorBuildProfileManager::_class_list_item_selected() {
+	if (updating_build_options) {
+		return;
+	}
+
+	TreeItem *item = class_list->get_selected();
+	if (!item) {
+		return;
+	}
+
+	Variant md = item->get_metadata(0);
+	if (md.get_type() == Variant::STRING || md.get_type() == Variant::STRING_NAME) {
+		String class_name = md;
+		String class_description;
+
+		DocTools *dd = EditorHelp::get_doc_data();
+		HashMap<String, DocData::ClassDoc>::Iterator E = dd->class_list.find(class_name);
+		if (E) {
+			class_description = DTR(E->value.brief_description);
+		}
+
+		description_bit->set_text(class_description);
+	} else if (md.get_type() == Variant::INT) {
+		int build_option_id = md;
+		String build_option_description = EditorBuildProfile::get_build_option_description(EditorBuildProfile::BuildOption(build_option_id));
+
+		description_bit->set_text(TTRGET(build_option_description));
+		return;
+	} else {
+		return;
+	}
+}
+
+void EditorBuildProfileManager::_class_list_item_edited() {
+	if (updating_build_options) {
+		return;
+	}
+
+	TreeItem *item = class_list->get_edited();
+	if (!item) {
+		return;
+	}
+
+	bool checked = item->is_checked(0);
+
+	Variant md = item->get_metadata(0);
+	if (md.get_type() == Variant::STRING || md.get_type() == Variant::STRING_NAME) {
+		String class_selected = md;
+		edited->set_disable_class(class_selected, !checked);
+		_update_edited_profile();
+	} else if (md.get_type() == Variant::INT) {
+		int build_option_selected = md;
+		edited->set_disable_build_option(EditorBuildProfile::BuildOption(build_option_selected), !checked);
+	}
+}
+
+void EditorBuildProfileManager::_class_list_item_collapsed(Object *p_item) {
+	if (updating_build_options) {
+		return;
+	}
+
+	TreeItem *item = Object::cast_to<TreeItem>(p_item);
+	if (!item) {
+		return;
+	}
+
+	Variant md = item->get_metadata(0);
+	if (md.get_type() != Variant::STRING && md.get_type() != Variant::STRING_NAME) {
+		return;
+	}
+
+	String class_name = md;
+	bool collapsed = item->is_collapsed();
+	edited->set_item_collapsed(class_name, collapsed);
+}
+
+void EditorBuildProfileManager::_update_edited_profile() {
+	String class_selected;
+	int build_option_selected = -1;
+
+	if (class_list->get_selected()) {
+		Variant md = class_list->get_selected()->get_metadata(0);
+		if (md.get_type() == Variant::STRING || md.get_type() == Variant::STRING_NAME) {
+			class_selected = md;
+		} else if (md.get_type() == Variant::INT) {
+			build_option_selected = md;
+		}
+	}
+
+	class_list->clear();
+
+	updating_build_options = true;
+
+	TreeItem *root = class_list->create_item();
+
+	TreeItem *build_options = class_list->create_item(root);
+	build_options->set_text(0, TTR("General Features:"));
+	for (int i = 0; i < EditorBuildProfile::BUILD_OPTION_MAX; i++) {
+		TreeItem *build_option;
+		build_option = class_list->create_item(build_options);
+
+		build_option->set_cell_mode(0, TreeItem::CELL_MODE_CHECK);
+		build_option->set_text(0, EditorBuildProfile::get_build_option_name(EditorBuildProfile::BuildOption(i)));
+		build_option->set_selectable(0, true);
+		build_option->set_editable(0, true);
+		build_option->set_metadata(0, i);
+		if (!edited->is_build_option_disabled(EditorBuildProfile::BuildOption(i))) {
+			build_option->set_checked(0, true);
+		}
+
+		if (i == build_option_selected) {
+			build_option->select(0);
+		}
+	}
+
+	TreeItem *classes = class_list->create_item(root);
+	classes->set_text(0, TTR("Nodes and Classes:"));
+
+	_fill_classes_from(classes, "Node", class_selected);
+	_fill_classes_from(classes, "Resource", class_selected);
+
+	force_detect_classes->set_text(edited->get_force_detect_classes());
+
+	updating_build_options = false;
+
+	_class_list_item_selected();
+}
+
+void EditorBuildProfileManager::_force_detect_classes_changed(const String &p_text) {
+	if (updating_build_options) {
+		return;
+	}
+	edited->set_force_detect_classes(force_detect_classes->get_text());
+}
+
+void EditorBuildProfileManager::_import_profile(const String &p_path) {
+	Ref<EditorBuildProfile> profile;
+	profile.instantiate();
+	Error err = profile->load_from_file(p_path);
+	String basefile = p_path.get_file();
+	if (err != OK) {
+		EditorNode::get_singleton()->show_warning(vformat(TTR("File '%s' format is invalid, import aborted."), basefile));
+		return;
+	}
+
+	profile_path->set_text(p_path);
+	EditorSettings::get_singleton()->set_project_metadata("build_profile", "last_file_path", p_path);
+
+	edited = profile;
+	_update_edited_profile();
+}
+
+void EditorBuildProfileManager::_export_profile(const String &p_path) {
+	ERR_FAIL_COND(edited.is_null());
+	Error err = edited->save_to_file(p_path);
+	if (err != OK) {
+		EditorNode::get_singleton()->show_warning(vformat(TTR("Error saving profile to path: '%s'."), p_path));
+	} else {
+		profile_path->set_text(p_path);
+		EditorSettings::get_singleton()->set_project_metadata("build_profile", "last_file_path", p_path);
+	}
+}
+
+Ref<EditorBuildProfile> EditorBuildProfileManager::get_current_profile() {
+	return edited;
+}
+
+EditorBuildProfileManager *EditorBuildProfileManager::singleton = nullptr;
+
+void EditorBuildProfileManager::_bind_methods() {
+	ClassDB::bind_method("_update_selected_profile", &EditorBuildProfileManager::_update_edited_profile);
+}
+
+EditorBuildProfileManager::EditorBuildProfileManager() {
+	VBoxContainer *main_vbc = memnew(VBoxContainer);
+	add_child(main_vbc);
+
+	HBoxContainer *path_hbc = memnew(HBoxContainer);
+	profile_path = memnew(LineEdit);
+	path_hbc->add_child(profile_path);
+	profile_path->set_editable(true);
+	profile_path->set_h_size_flags(Control::SIZE_EXPAND_FILL);
+
+	profile_actions[ACTION_NEW] = memnew(Button(TTR("New")));
+	path_hbc->add_child(profile_actions[ACTION_NEW]);
+	profile_actions[ACTION_NEW]->connect("pressed", callable_mp(this, &EditorBuildProfileManager::_profile_action), varray(ACTION_NEW));
+
+	profile_actions[ACTION_LOAD] = memnew(Button(TTR("Load")));
+	path_hbc->add_child(profile_actions[ACTION_LOAD]);
+	profile_actions[ACTION_LOAD]->connect("pressed", callable_mp(this, &EditorBuildProfileManager::_profile_action), varray(ACTION_LOAD));
+
+	profile_actions[ACTION_SAVE] = memnew(Button(TTR("Save")));
+	path_hbc->add_child(profile_actions[ACTION_SAVE]);
+	profile_actions[ACTION_SAVE]->connect("pressed", callable_mp(this, &EditorBuildProfileManager::_profile_action), varray(ACTION_SAVE));
+
+	profile_actions[ACTION_SAVE_AS] = memnew(Button(TTR("Save As")));
+	path_hbc->add_child(profile_actions[ACTION_SAVE_AS]);
+	profile_actions[ACTION_SAVE_AS]->connect("pressed", callable_mp(this, &EditorBuildProfileManager::_profile_action), varray(ACTION_SAVE_AS));
+
+	main_vbc->add_margin_child(TTR("Profile:"), path_hbc);
+
+	main_vbc->add_child(memnew(HSeparator));
+
+	HBoxContainer *profiles_hbc = memnew(HBoxContainer);
+
+	profile_actions[ACTION_RESET] = memnew(Button(TTR("Reset to Defaults")));
+	profiles_hbc->add_child(profile_actions[ACTION_RESET]);
+	profile_actions[ACTION_RESET]->connect("pressed", callable_mp(this, &EditorBuildProfileManager::_profile_action), varray(ACTION_RESET));
+
+	profile_actions[ACTION_DETECT] = memnew(Button(TTR("Detect from Project")));
+	profiles_hbc->add_child(profile_actions[ACTION_DETECT]);
+	profile_actions[ACTION_DETECT]->connect("pressed", callable_mp(this, &EditorBuildProfileManager::_profile_action), varray(ACTION_DETECT));
+
+	main_vbc->add_margin_child(TTR("Actions:"), profiles_hbc);
+
+	class_list = memnew(Tree);
+	class_list->set_hide_root(true);
+	class_list->set_edit_checkbox_cell_only_when_checkbox_is_pressed(true);
+	class_list->connect("cell_selected", callable_mp(this, &EditorBuildProfileManager::_class_list_item_selected));
+	class_list->connect("item_edited", callable_mp(this, &EditorBuildProfileManager::_class_list_item_edited), varray(), CONNECT_DEFERRED);
+	class_list->connect("item_collapsed", callable_mp(this, &EditorBuildProfileManager::_class_list_item_collapsed));
+	// It will be displayed once the user creates or chooses a profile.
+	main_vbc->add_margin_child(TTR("Configure Engine Build Profile:"), class_list, true);
+
+	description_bit = memnew(EditorHelpBit);
+	description_bit->set_custom_minimum_size(Size2(0, 80) * EDSCALE);
+	main_vbc->add_margin_child(TTR("Description:"), description_bit, false);
+
+	confirm_dialog = memnew(ConfirmationDialog);
+	add_child(confirm_dialog);
+	confirm_dialog->set_title(TTR("Please Confirm:"));
+	confirm_dialog->connect("confirmed", callable_mp(this, &EditorBuildProfileManager::_action_confirm));
+
+	import_profile = memnew(EditorFileDialog);
+	add_child(import_profile);
+	import_profile->set_file_mode(EditorFileDialog::FILE_MODE_OPEN_FILE);
+	import_profile->add_filter("*.build", TTR("Egine Build Profile"));
+	import_profile->connect("files_selected", callable_mp(this, &EditorBuildProfileManager::_import_profile));
+	import_profile->set_title(TTR("Load Profile"));
+	import_profile->set_access(EditorFileDialog::ACCESS_FILESYSTEM);
+
+	export_profile = memnew(EditorFileDialog);
+	add_child(export_profile);
+	export_profile->set_file_mode(EditorFileDialog::FILE_MODE_SAVE_FILE);
+	export_profile->add_filter("*.build", TTR("Egine Build Profile"));
+	export_profile->connect("file_selected", callable_mp(this, &EditorBuildProfileManager::_export_profile));
+	export_profile->set_title(TTR("Export Profile"));
+	export_profile->set_access(EditorFileDialog::ACCESS_FILESYSTEM);
+
+	force_detect_classes = memnew(LineEdit);
+	main_vbc->add_margin_child(TTR("Forced classes on detect:"), force_detect_classes);
+	force_detect_classes->connect("text_changed", callable_mp(this, &EditorBuildProfileManager::_force_detect_classes_changed));
+
+	set_title(TTR("Edit Build Configuration Profile"));
+
+	singleton = this;
+}
diff --git a/editor/editor_build_profile.h b/editor/editor_build_profile.h
new file mode 100644
index 0000000000..bb6494b8c9
--- /dev/null
+++ b/editor/editor_build_profile.h
@@ -0,0 +1,173 @@
+/*************************************************************************/
+/*  editor_build_profile.h                                               */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md).   */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+#ifndef EDITOR_BUILD_PROFILE_H
+#define EDITOR_BUILD_PROFILE_H
+
+#include "core/io/file_access.h"
+#include "core/object/ref_counted.h"
+#include "editor/editor_help.h"
+#include "scene/gui/dialogs.h"
+#include "scene/gui/option_button.h"
+#include "scene/gui/separator.h"
+#include "scene/gui/split_container.h"
+#include "scene/gui/tree.h"
+
+class EditorBuildProfile : public RefCounted {
+	GDCLASS(EditorBuildProfile, RefCounted);
+
+public:
+	enum BuildOption {
+		BUILD_OPTION_3D,
+		BUILD_OPTION_PHYSICS_2D,
+		BUILD_OPTION_PHYSICS_3D,
+		BUILD_OPTION_NAVIGATION,
+		BUILD_OPTION_XR,
+		BUILD_OPTION_RENDERING_DEVICE,
+		BUILD_OPTION_OPENGL,
+		BUILD_OPTION_VULKAN,
+		BUILD_OPTION_MAX
+	};
+
+private:
+	HashSet<StringName> disabled_classes;
+
+	HashSet<StringName> collapsed_classes;
+
+	String force_detect_classes;
+
+	bool build_options_disabled[BUILD_OPTION_MAX] = {};
+	static const char *build_option_identifiers[BUILD_OPTION_MAX];
+	static const bool build_option_disable_values[BUILD_OPTION_MAX];
+
+	String _get_build_option_name(BuildOption p_build_option) { return get_build_option_name(p_build_option); }
+
+protected:
+	static void _bind_methods();
+
+public:
+	void set_disable_class(const StringName &p_class, bool p_disabled);
+	bool is_class_disabled(const StringName &p_class) const;
+
+	void set_item_collapsed(const StringName &p_class, bool p_collapsed);
+	bool is_item_collapsed(const StringName &p_class) const;
+
+	void set_disable_build_option(BuildOption p_build_option, bool p_disable);
+	bool is_build_option_disabled(BuildOption p_build_option) const;
+
+	void set_force_detect_classes(const String &p_classes);
+	String get_force_detect_classes() const;
+
+	void clear_disabled_classes();
+
+	Error save_to_file(const String &p_path);
+	Error load_from_file(const String &p_path);
+
+	static String get_build_option_name(BuildOption p_build_option);
+	static String get_build_option_description(BuildOption p_build_option);
+	static bool get_build_option_disable_value(BuildOption p_build_option);
+
+	EditorBuildProfile();
+};
+
+VARIANT_ENUM_CAST(EditorBuildProfile::BuildOption)
+
+class EditorFileSystemDirectory;
+
+class EditorBuildProfileManager : public AcceptDialog {
+	GDCLASS(EditorBuildProfileManager, AcceptDialog);
+
+	enum Action {
+		ACTION_NEW,
+		ACTION_RESET,
+		ACTION_LOAD,
+		ACTION_SAVE,
+		ACTION_SAVE_AS,
+		ACTION_DETECT,
+		ACTION_MAX
+	};
+
+	Action last_action = ACTION_NEW;
+
+	ConfirmationDialog *confirm_dialog = nullptr;
+	Button *profile_actions[ACTION_MAX];
+
+	Tree *class_list = nullptr;
+	EditorHelpBit *description_bit = nullptr;
+
+	EditorFileDialog *import_profile = nullptr;
+	EditorFileDialog *export_profile = nullptr;
+
+	LineEdit *profile_path = nullptr;
+
+	LineEdit *force_detect_classes = nullptr;
+
+	void _profile_action(int p_action);
+	void _action_confirm();
+
+	void _update_edited_profile();
+	void _fill_classes_from(TreeItem *p_parent, const String &p_class, const String &p_selected);
+
+	Ref<EditorBuildProfile> edited;
+
+	void _import_profile(const String &p_path);
+	void _export_profile(const String &p_path);
+
+	bool updating_build_options = false;
+
+	void _class_list_item_selected();
+	void _class_list_item_edited();
+	void _class_list_item_collapsed(Object *p_item);
+	void _detect_classes();
+
+	void _force_detect_classes_changed(const String &p_text);
+
+	struct DetectedFile {
+		uint32_t timestamp = 0;
+		String md5;
+		Vector<String> classes;
+	};
+
+	void _find_files(EditorFileSystemDirectory *p_dir, const HashMap<String, DetectedFile> &p_cache, HashMap<String, DetectedFile> &r_detected);
+
+	static EditorBuildProfileManager *singleton;
+
+protected:
+	static void _bind_methods();
+	void _notification(int p_what);
+
+public:
+	Ref<EditorBuildProfile> get_current_profile();
+
+	static EditorBuildProfileManager *get_singleton() { return singleton; }
+	EditorBuildProfileManager();
+};
+
+#endif // EDITOR_BUILD_PROFILE_H
diff --git a/editor/editor_node.cpp b/editor/editor_node.cpp
index 166dcf19c8..68aad71ca2 100644
--- a/editor/editor_node.cpp
+++ b/editor/editor_node.cpp
@@ -75,6 +75,7 @@
 #include "editor/dependency_editor.h"
 #include "editor/editor_about.h"
 #include "editor/editor_audio_buses.h"
+#include "editor/editor_build_profile.h"
 #include "editor/editor_command_palette.h"
 #include "editor/editor_data.h"
 #include "editor/editor_export.h"
@@ -2805,6 +2806,9 @@ void EditorNode::_menu_option_confirm(int p_option, bool p_confirmed) {
 				}
 			}
 		} break;
+		case TOOLS_BUILD_PROFILE_MANAGER: {
+			build_profile_manager->popup_centered_clamped(Size2(700, 800) * EDSCALE, 0.8);
+		} break;
 		case RUN_USER_DATA_FOLDER: {
 			// Ensure_user_data_dir() to prevent the edge case: "Open User Data Folder" won't work after the project was renamed in ProjectSettingsEditor unless the project is saved.
 			OS::get_singleton()->ensure_user_data_dir();
@@ -6451,6 +6455,10 @@ EditorNode::EditorNode() {
 
 	feature_profile_manager = memnew(EditorFeatureProfileManager);
 	gui_base->add_child(feature_profile_manager);
+
+	build_profile_manager = memnew(EditorBuildProfileManager);
+	gui_base->add_child(build_profile_manager);
+
 	about = memnew(EditorAbout);
 	gui_base->add_child(about);
 	feature_profile_manager->connect("current_feature_profile_changed", callable_mp(this, &EditorNode::_feature_profile_changed));
@@ -6543,6 +6551,10 @@ EditorNode::EditorNode() {
 	p->add_item(TTR("Install Android Build Template..."), FILE_INSTALL_ANDROID_SOURCE);
 	p->add_item(TTR("Open User Data Folder"), RUN_USER_DATA_FOLDER);
 
+	p->add_separator();
+	p->add_item(TTR("Customize Engine Build Configuration..."), TOOLS_BUILD_PROFILE_MANAGER);
+	p->add_separator();
+
 	plugin_config_dialog = memnew(PluginConfigDialog);
 	plugin_config_dialog->connect("plugin_ready", callable_mp(this, &EditorNode::_on_plugin_ready));
 	gui_base->add_child(plugin_config_dialog);
@@ -7190,6 +7202,7 @@ EditorNode::EditorNode() {
 		vshader_convert.instantiate();
 		resource_conversion_plugins.push_back(vshader_convert);
 	}
+
 	update_spinner_step_msec = OS::get_singleton()->get_ticks_msec();
 	update_spinner_step_frame = Engine::get_singleton()->get_frames_drawn();
 
diff --git a/editor/editor_node.h b/editor/editor_node.h
index 07d565314d..08f5bfdc4a 100644
--- a/editor/editor_node.h
+++ b/editor/editor_node.h
@@ -95,6 +95,7 @@ class TabContainer;
 class TextureProgressBar;
 class VSplitContainer;
 class Window;
+class EditorBuildProfileManager;
 
 class EditorNode : public Node {
 	GDCLASS(EditorNode, Node);
@@ -163,6 +164,7 @@ private:
 		EDIT_REDO,
 		EDIT_RELOAD_SAVED_SCENE,
 		TOOLS_ORPHAN_RESOURCES,
+		TOOLS_BUILD_PROFILE_MANAGER,
 		TOOLS_CUSTOM,
 		RESOURCE_SAVE,
 		RESOURCE_SAVE_AS,
@@ -377,6 +379,7 @@ private:
 	EditorFileDialog *file = nullptr;
 	ExportTemplateManager *export_template_manager = nullptr;
 	EditorFeatureProfileManager *feature_profile_manager = nullptr;
+	EditorBuildProfileManager *build_profile_manager = nullptr;
 	EditorFileDialog *file_templates = nullptr;
 	EditorFileDialog *file_export_lib = nullptr;
 	EditorFileDialog *file_script = nullptr;
diff --git a/scene/resources/resource_format_text.cpp b/scene/resources/resource_format_text.cpp
index 66afb001fb..100e8ea7c6 100644
--- a/scene/resources/resource_format_text.cpp
+++ b/scene/resources/resource_format_text.cpp
@@ -65,14 +65,18 @@ Error ResourceLoaderText::_parse_sub_resource_dummy(DummyReadData *p_data, Varia
 		return ERR_PARSE_ERROR;
 	}
 
-	String unique_id = token.value;
+	if (p_data->no_placeholders) {
+		r_res.unref();
+	} else {
+		String unique_id = token.value;
 
-	if (!p_data->resource_map.has(unique_id)) {
-		r_err_str = "Found unique_id reference before mapping, sub-resources stored out of order in resource file";
-		return ERR_PARSE_ERROR;
-	}
+		if (!p_data->resource_map.has(unique_id)) {
+			r_err_str = "Found unique_id reference before mapping, sub-resources stored out of order in resource file";
+			return ERR_PARSE_ERROR;
+		}
 
-	r_res = p_data->resource_map[unique_id];
+		r_res = p_data->resource_map[unique_id];
+	}
 
 	VariantParser::get_token(p_stream, token, line, r_err_str);
 	if (token.type != VariantParser::TK_PARENTHESIS_CLOSE) {
@@ -91,11 +95,15 @@ Error ResourceLoaderText::_parse_ext_resource_dummy(DummyReadData *p_data, Varia
 		return ERR_PARSE_ERROR;
 	}
 
-	String id = token.value;
+	if (p_data->no_placeholders) {
+		r_res.unref();
+	} else {
+		String id = token.value;
 
-	ERR_FAIL_COND_V(!p_data->rev_external_resources.has(id), ERR_PARSE_ERROR);
+		ERR_FAIL_COND_V(!p_data->rev_external_resources.has(id), ERR_PARSE_ERROR);
 
-	r_res = p_data->rev_external_resources[id];
+		r_res = p_data->rev_external_resources[id];
+	}
 
 	VariantParser::get_token(p_stream, token, line, r_err_str);
 	if (token.type != VariantParser::TK_PARENTHESIS_CLOSE) {
@@ -1066,7 +1074,7 @@ static void bs_save_unicode_string(Ref<FileAccess> p_f, const String &p_string,
 	p_f->store_buffer((const uint8_t *)utf8.get_data(), utf8.length() + 1);
 }
 
-Error ResourceLoaderText::save_as_binary(Ref<FileAccess> p_f, const String &p_path) {
+Error ResourceLoaderText::save_as_binary(const String &p_path) {
 	if (error) {
 		return error;
 	}
@@ -1271,7 +1279,7 @@ Error ResourceLoaderText::save_as_binary(Ref<FileAccess> p_f, const String &p_pa
 		}
 
 		if (next_tag.name == "node") {
-			//this is a node, must save one more!
+			// This is a node, must save one more!
 
 			if (!is_scene) {
 				error_text += "found the 'node' tag on a resource file!";
@@ -1346,6 +1354,126 @@ Error ResourceLoaderText::save_as_binary(Ref<FileAccess> p_f, const String &p_pa
 	return OK;
 }
 
+Error ResourceLoaderText::get_classes_used(HashSet<StringName> *r_classes) {
+	if (error) {
+		return error;
+	}
+
+	ignore_resource_parsing = true;
+
+	DummyReadData dummy_read;
+	dummy_read.no_placeholders = true;
+	VariantParser::ResourceParser rp;
+	rp.ext_func = _parse_ext_resource_dummys;
+	rp.sub_func = _parse_sub_resource_dummys;
+	rp.userdata = &dummy_read;
+
+	while (next_tag.name == "ext_resource") {
+		error = VariantParser::parse_tag(&stream, lines, error_text, next_tag, &rp);
+
+		if (error) {
+			_printerr();
+			return error;
+		}
+	}
+
+	while (next_tag.name == "sub_resource" || next_tag.name == "resource") {
+		if (next_tag.name == "sub_resource") {
+			if (!next_tag.fields.has("type")) {
+				error = ERR_FILE_CORRUPT;
+				error_text = "Missing 'type' in external resource tag";
+				_printerr();
+				return error;
+			}
+
+			r_classes->insert(next_tag.fields["type"]);
+
+		} else {
+			r_classes->insert(next_tag.fields["res_type"]);
+		}
+
+		while (true) {
+			String assign;
+			Variant value;
+
+			error = VariantParser::parse_tag_assign_eof(&stream, lines, error_text, next_tag, assign, value, &rp);
+
+			if (error) {
+				if (error == ERR_FILE_EOF) {
+					return OK;
+				}
+
+				_printerr();
+				return error;
+			}
+
+			if (!assign.is_empty()) {
+				continue;
+			} else if (!next_tag.name.is_empty()) {
+				error = OK;
+				break;
+			} else {
+				error = ERR_FILE_CORRUPT;
+				error_text = "Premature end of file while parsing [sub_resource]";
+				_printerr();
+				return error;
+			}
+		}
+	}
+
+	while (next_tag.name == "node") {
+		// This is a node, must save one more!
+
+		if (!is_scene) {
+			error_text += "found the 'node' tag on a resource file!";
+			_printerr();
+			error = ERR_FILE_CORRUPT;
+			return error;
+		}
+
+		if (!next_tag.fields.has("type")) {
+			error = ERR_FILE_CORRUPT;
+			error_text = "Missing 'type' in external resource tag";
+			_printerr();
+			return error;
+		}
+
+		r_classes->insert(next_tag.fields["type"]);
+
+		while (true) {
+			String assign;
+			Variant value;
+
+			error = VariantParser::parse_tag_assign_eof(&stream, lines, error_text, next_tag, assign, value, &rp);
+
+			if (error) {
+				if (error == ERR_FILE_MISSING_DEPENDENCIES) {
+					// Resource loading error, just skip it.
+				} else if (error != ERR_FILE_EOF) {
+					_printerr();
+					return error;
+				} else {
+					return OK;
+				}
+			}
+
+			if (!assign.is_empty()) {
+				continue;
+			} else if (!next_tag.name.is_empty()) {
+				error = OK;
+				break;
+			} else {
+				error = ERR_FILE_CORRUPT;
+				error_text = "Premature end of file while parsing [sub_resource]";
+				_printerr();
+				return error;
+			}
+		}
+	}
+
+	return OK;
+}
+
 String ResourceLoaderText::recognize(Ref<FileAccess> p_f) {
 	error = OK;
 
@@ -1473,6 +1601,26 @@ bool ResourceFormatLoaderText::handles_type(const String &p_type) const {
 	return true;
 }
 
+void ResourceFormatLoaderText::get_classes_used(const String &p_path, HashSet<StringName> *r_classes) {
+	String ext = p_path.get_extension().to_lower();
+	if (ext == "tscn") {
+		r_classes->insert("PackedScene");
+	}
+
+	// ...for anything else must test...
+
+	Ref<FileAccess> f = FileAccess::open(p_path, FileAccess::READ);
+	if (f.is_null()) {
+		return; // Could not read.
+	}
+
+	ResourceLoaderText loader;
+	loader.local_path = ProjectSettings::get_singleton()->localize_path(p_path);
+	loader.res_path = loader.local_path;
+	loader.open(f);
+	loader.get_classes_used(r_classes);
+}
+
 String ResourceFormatLoaderText::get_resource_type(const String &p_path) const {
 	String ext = p_path.get_extension().to_lower();
 	if (ext == "tscn") {
@@ -1561,7 +1709,7 @@ Error ResourceFormatLoaderText::convert_file_to_binary(const String &p_src_path,
 	loader.local_path = ProjectSettings::get_singleton()->localize_path(path);
 	loader.res_path = loader.local_path;
 	loader.open(f);
-	return loader.save_as_binary(f, p_dst_path);
+	return loader.save_as_binary(p_dst_path);
 }
 
 /*****************************************************************************************************/
diff --git a/scene/resources/resource_format_text.h b/scene/resources/resource_format_text.h
index 5c6a937bf2..69bb40502f 100644
--- a/scene/resources/resource_format_text.h
+++ b/scene/resources/resource_format_text.h
@@ -90,6 +90,7 @@ class ResourceLoaderText {
 	};
 
 	struct DummyReadData {
+		bool no_placeholders = false;
 		HashMap<Ref<Resource>, int> external_resources;
 		HashMap<String, Ref<Resource>> rev_external_resources;
 		HashMap<Ref<Resource>, int> resource_index_map;
@@ -125,8 +126,9 @@ public:
 	ResourceUID::ID get_uid(Ref<FileAccess> p_f);
 	void get_dependencies(Ref<FileAccess> p_f, List<String> *p_dependencies, bool p_add_types);
 	Error rename_dependencies(Ref<FileAccess> p_f, const String &p_path, const HashMap<String, String> &p_map);
+	Error get_classes_used(HashSet<StringName> *r_classes);
 
-	Error save_as_binary(Ref<FileAccess> p_f, const String &p_path);
+	Error save_as_binary(const String &p_path);
 	ResourceLoaderText();
 };
 
@@ -137,6 +139,8 @@ public:
 	virtual void get_recognized_extensions_for_type(const String &p_type, List<String> *p_extensions) const;
 	virtual void get_recognized_extensions(List<String> *p_extensions) const;
 	virtual bool handles_type(const String &p_type) const;
+	virtual void get_classes_used(const String &p_path, HashSet<StringName> *r_classes);
+
 	virtual String get_resource_type(const String &p_path) const;
 	virtual ResourceUID::ID get_resource_uid(const String &p_path) const;
 	virtual void get_dependencies(const String &p_path, List<String> *p_dependencies, bool p_add_types = false);