Add support for portable directory without build flag (#1071)

.github/workflows/build.yml

@@ -75,7 +75,7 @@ jobs:
         
     - name: "cmake"
       run: |
-        cmake -S . -B build ${{ env.BUILD_FLAGS }} -DCMAKE_BUILD_TYPE=${{ env.BUILD_MODE }} -DPORTABLE=OFF -DCMAKE_C_COMPILER=/usr/bin/clang-15 -DCMAKE_CXX_COMPILER=/usr/bin/clang++-15 -G Ninja -DCMAKE_MAKE_PROGRAM=/usr/bin/ninja
+        cmake -S . -B build ${{ env.BUILD_FLAGS }} -DCMAKE_BUILD_TYPE=${{ env.BUILD_MODE }} -DCMAKE_C_COMPILER=/usr/bin/clang-15 -DCMAKE_CXX_COMPILER=/usr/bin/clang++-15 -G Ninja -DCMAKE_MAKE_PROGRAM=/usr/bin/ninja
         
     - name: "Build Cemu"
       run: |
@@ -258,7 +258,6 @@ jobs:
         cd build
         cmake .. ${{ env.BUILD_FLAGS }} \
         -DCMAKE_BUILD_TYPE=${{ env.BUILD_MODE }} \
-        -DPORTABLE=OFF \
         -DMACOS_BUNDLE=ON \
         -DCMAKE_C_COMPILER=/usr/local/opt/llvm@15/bin/clang \
         -DCMAKE_CXX_COMPILER=/usr/local/opt/llvm@15/bin/clang++ \

CMakeLists.txt

@@ -1,7 +1,6 @@
 cmake_minimum_required(VERSION 3.21.1)
 
 option(ENABLE_VCPKG "Enable the vcpkg package manager" ON)
-option(PORTABLE "All data created and maintained by Cemu will be in the directory where the executable file is located" ON)
 option(MACOS_BUNDLE "The executable when built on macOS will be created as an application bundle" OFF)
 set(EXPERIMENTAL_VERSION "" CACHE STRING "") # used by CI script to set experimental version
 
@@ -45,10 +44,6 @@ set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
 add_compile_definitions($<$<CONFIG:Debug>:CEMU_DEBUG_ASSERT>) # if build type is debug, set CEMU_DEBUG_ASSERT
 
-if(PORTABLE)
-	add_compile_definitions(PORTABLE)
-endif()
-
 set_property(GLOBAL PROPERTY USE_FOLDERS ON)
 
 # enable link time optimization for release builds

src/gui/CemuApp.cpp

@@ -59,15 +59,24 @@ bool CemuApp::OnInit()
 	fs::path user_data_path, config_path, cache_path, data_path;
 	auto standardPaths = wxStandardPaths::Get();
 	fs::path exePath(wxHelper::MakeFSPath(standardPaths.GetExecutablePath()));
-#ifdef PORTABLE
-#if MACOS_BUNDLE
-    exePath = exePath.parent_path().parent_path().parent_path();
+
+	// Try a portable path first, if it exists.
+	user_data_path = config_path = cache_path = data_path = exePath.parent_path() / "portable";
+#if BOOST_OS_MACOS
+	// If run from an app bundle, use its parent directory.
+	fs::path appPath = exePath.parent_path().parent_path().parent_path();
+	if (appPath.extension() == ".app")
+		user_data_path = config_path = cache_path = data_path = appPath.parent_path() / "portable";
 #endif
+
+	if (!fs::exists(user_data_path))
+	{
+#if BOOST_OS_WINDOWS
 		user_data_path = config_path = cache_path = data_path = exePath.parent_path();
 #else
 		SetAppName("Cemu");
 		wxString appName=GetAppName();
-	#if BOOST_OS_LINUX
+#if BOOST_OS_LINUX
 		standardPaths.SetFileLayout(wxStandardPaths::FileLayout::FileLayout_XDG);
 		auto getEnvDir = [&](const wxString& varName, const wxString& defaultValue)
 		{
@@ -79,13 +88,15 @@ bool CemuApp::OnInit()
 		wxString homeDir=wxFileName::GetHomeDir();
 		user_data_path = (getEnvDir(wxS("XDG_DATA_HOME"), homeDir + wxS("/.local/share")) + "/" + appName).ToStdString();
 		config_path = (getEnvDir(wxS("XDG_CONFIG_HOME"), homeDir + wxS("/.config")) + "/" + appName).ToStdString();
-	#else
+#else
 		user_data_path = config_path = standardPaths.GetUserDataDir().ToStdString();
-	#endif
+#endif
 		data_path = standardPaths.GetDataDir().ToStdString();
 		cache_path = standardPaths.GetUserDir(wxStandardPaths::Dir::Dir_Cache).ToStdString();
 		cache_path /= appName.ToStdString();
 #endif
+	}
+
 	auto failed_write_access = ActiveSettings::LoadOnce(exePath, user_data_path, config_path, cache_path, data_path);
 	for (auto&& path : failed_write_access)
 		wxMessageBox(formatWxString(_("Cemu can't write to {}!"), wxString::FromUTF8(_pathToUtf8(path))),