Enable unity build on modules that support it

.github/workflows/coverage.yml

@@ -66,7 +66,7 @@ jobs:
 
     # Setup compilation mode and install project dependencies
     - name: Configure xmake and install dependencies
-      run: xmake config --shadernodes=y --tests=y --arch=${{ matrix.arch }} --mode=${{ matrix.mode }} --verbose --yes
+      run: xmake config --shadernodes=y --tests=y --unitybuild=y --arch=${{ matrix.arch }} --mode=${{ matrix.mode }} --verbose --yes
 
     # Build the engine
     - name: Build Nazara

.github/workflows/linux-build-sanitizer.yml

@@ -79,7 +79,7 @@ jobs:
 
     # Configure xmake with honggfuzz to build the engine
     - name: Configure xmake with honggfuzz
-      run: xmake config --shadernodes=y --tests=y --arch=${{ matrix.arch }} --mode=fuzz --verbose --toolchain=hfuzz-clang
+      run: xmake config --shadernodes=y --tests=y --unitybuild=y --arch=${{ matrix.arch }} --mode=fuzz --verbose --toolchain=hfuzz-clang
 
     # Build the engine
     - name: Build Nazara

.github/workflows/linux-build.yml

@@ -65,7 +65,7 @@ jobs:
 
     # Setup compilation mode and install project dependencies
     - name: Configure xmake and install dependencies
-      run: xmake config --shadernodes=y --tests=y --arch=${{ matrix.arch }} --mode=${{ matrix.mode }} --verbose --yes
+      run: xmake config --shadernodes=y --tests=y --unitybuild=y --arch=${{ matrix.arch }} --mode=${{ matrix.mode }} --verbose --yes
 
     # Build the engine
     - name: Build Nazara

.github/workflows/msys2-build.yml

@@ -74,7 +74,7 @@ jobs:
 
     # Setup compilation mode and install project dependencies
     - name: Configure xmake and install dependencies
-      run: xmake config --shadernodes=y --tests=y --arch=${{ matrix.arch }} --mode=${{ matrix.mode }} --verbose --yes
+      run: xmake config --shadernodes=y --tests=y --unitybuild=y --arch=${{ matrix.arch }} --mode=${{ matrix.mode }} --verbose --yes
 
     # Build the engine
     - name: Build Nazara

.github/workflows/windows-build.yml

@@ -57,7 +57,7 @@ jobs:
 
     # Setup compilation mode and install project dependencies
     - name: Configure xmake and install dependencies
-      run: xmake.exe config --shadernodes=y --tests=y --usepch=y --arch=${{ matrix.arch }} --mode=${{ matrix.mode }} --verbose --yes
+      run: xmake.exe config --shadernodes=y --tests=y --usepch=y --unitybuild=y --arch=${{ matrix.arch }} --mode=${{ matrix.mode }} --verbose --yes
 
     # Build the engine
     - name: Build Nazara

src/ShaderNode/Widgets/ShaderInfoDialog.hpp

@@ -1,7 +1,7 @@
 #pragma once
 
-#ifndef NAZARA_SHADERNODES_BUFFEREDITDIALOG_HPP
+#ifndef NAZARA_SHADERNODES_SHADERINFODIALOG_HPP
-#define NAZARA_SHADERNODES_BUFFEREDITDIALOG_HPP
+#define NAZARA_SHADERNODES_SHADERINFODIALOG_HPP
 
 #include <ShaderNode/Enums.hpp>
 #include <QtWidgets/QDialog>

src/ShaderNode/Widgets/StructMemberEditDialog.hpp

@@ -1,7 +1,7 @@
 #pragma once
 
-#ifndef NAZARA_SHADERNODES_OUTPUTEDITDIALOG_HPP
+#ifndef NAZARA_SHADERNODES_STRUCTMEMBEREDITODIALOG_HPP
-#define NAZARA_SHADERNODES_OUTPUTEDITDIALOG_HPP
+#define NAZARA_SHADERNODES_STRUCTMEMBEREDITODIALOG_HPP
 
 #include <ShaderNode/Enums.hpp>
 #include <QtWidgets/QDialog>

tests/xmake.lua

@@ -24,16 +24,20 @@ if has_config("tests") then
 	add_files("Engine/**.cpp")
 	add_includedirs(".")
 
+	if has_config("unitybuild") then
+		add_rules("c++.unity_build")
+	end
+
 	target("NazaraClientUnitTests")
 		add_deps("NazaraAudio")
-		add_files("main_client.cpp")
+		add_files("main_client.cpp", {unity_ignored = true})
 
 		if has_config("usepch") then
 			set_pcxxheader("Engine/ClientModules.hpp")
 		end
 
 	target("NazaraUnitTests")
-		add_files("main.cpp")
+		add_files("main.cpp", {unity_ignored = true})
 		remove_headerfiles("Engine/Audio/**")
 		remove_files("Engine/Audio/**")
 

tools/xmake.lua

@@ -110,8 +110,13 @@ if has_config("shadernodes") then
 			add_cxflags("-fPIC")
 		end
 
+		if has_config("unitybuild") then
+			add_rules("c++.unity_build")
+		end
+
 		add_includedirs("../src")
 		add_headerfiles("../src/ShaderNode/**.hpp", "../src/ShaderNode/**.inl")
 		add_files("../src/ShaderNode/**.cpp")
+		add_files("../src/ShaderNode/Previews/PreviewValues.cpp", {unity_ignored = true}) -- fixes an issue with MSVC and operator*
 
 end

xmake.lua

@@ -35,6 +35,10 @@ local modules = {
 				remove_files("src/Nazara/Network/Posix/SocketPollerImpl.hpp")
 				remove_files("src/Nazara/Network/Posix/SocketPollerImpl.cpp")
 			end
+			
+			if has_config("unitybuild") then
+				add_rules("c++.unity_build")
+			end
 		end
 	},
 	OpenGLRenderer = {
@@ -50,15 +54,29 @@ local modules = {
 			if not is_plat("linux") then
 				remove_files("src/Nazara/OpenGLRenderer/Wrapper/Linux/**.cpp")
 			end
+			
+			if has_config("unitybuild") then
+				add_rules("c++.unity_build")
+			end
 		end
 	},
 	Physics2D = {
 		Deps = {"NazaraUtility"},
-		Packages = {"chipmunk2d"}
+		Packages = {"chipmunk2d"},
+		Custom = function()
+			if has_config("unitybuild") then
+				add_rules("c++.unity_build")
+			end
+		end
 	},
 	Physics3D = {
 		Deps = {"NazaraUtility"},
-		Packages = {"entt", "newtondynamics"}
+		Packages = {"entt", "newtondynamics"},
+		Custom = function()
+			if has_config("unitybuild") then
+				add_rules("c++.unity_build")
+			end
+		end
 	},
 	Platform = {
 		Deps = {"NazaraUtility"},
@@ -75,7 +93,12 @@ local modules = {
 		end
 	},
 	Renderer = {
-		Deps = {"NazaraPlatform", "NazaraShader"}
+		Deps = {"NazaraPlatform", "NazaraShader"},
+		Custom = function()
+			if has_config("unitybuild") then
+				add_rules("c++.unity_build")
+			end
+		end
 	},
 	Shader = {
 		Deps = {"NazaraUtility"}
@@ -97,11 +120,20 @@ local modules = {
 			elseif is_plat("macosx") then
 				add_defines("VK_USE_PLATFORM_MACOS_MVK")
 			end
+
+			if has_config("unitybuild") then
+				add_rules("c++.unity_build")
+			end
 		end
 	},
 	Widgets = {
 		Deps = {"NazaraGraphics"},
-		Packages = {"entt", "kiwisolver"}
+		Packages = {"entt", "kiwisolver"},
+		Custom = function()
+			if has_config("unitybuild") then
+				add_rules("c++.unity_build")
+			end
+		end
 	}
 }
 
@@ -115,6 +147,12 @@ option("usepch")
 	set_description("Use precompiled headers to speedup compilation")
 option_end()
 
+option("unitybuild")
+	set_default(false)
+	set_showmenu(true)
+	set_description("Build the engine using unity build")
+option_end()
+
 set_project("NazaraEngine")
 set_xmakever("2.6.3")