Restructure plugin system to be more portable

CMakeLists.txt

@@ -57,7 +57,7 @@ else()
 	set(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)
 	set(NOSTALGIA_DIST_BIN       bin)
 	set(NOSTALGIA_DIST_LIB       lib)
-	set(NOSTALGIA_DIST_PLUGIN    lib)
+	set(NOSTALGIA_DIST_PLUGIN    lib/nostalgia/plugins)
 	set(NOSTALGIA_DIST_RESOURCES share)
 endif()
 

src/nostalgia/core/studio/CMakeLists.txt

@@ -20,7 +20,7 @@ install(
 	TARGETS
 		NostalgiaCore-Studio
 	LIBRARY DESTINATION
-		${NOSTALGIA_DIST_PLUGIN}/nostalgia
+		${NOSTALGIA_DIST_PLUGIN}
 )
 
 install(

src/nostalgia/core/studio/core-studio.json

@@ -0,0 +1,3 @@
+{
+	"plugin_name": "Nostalgia Core"
+}

src/nostalgia/core/studio/plugin.hpp

@@ -17,7 +17,7 @@ namespace core {
 
 class Plugin: public QObject, studio::Plugin {
 	Q_OBJECT
-	Q_PLUGIN_METADATA(IID "net.drinkingtea.nostalgia.studio.Plugin")
+	Q_PLUGIN_METADATA(IID "net.drinkingtea.nostalgia.studio.Plugin" FILE "core-studio.json")
 	Q_INTERFACES(nostalgia::studio::Plugin)
 
 	public:

src/nostalgia/studio/mainwindow.cpp

@@ -73,30 +73,48 @@ MainWindow::~MainWindow() {
 }
 
 void MainWindow::loadPlugins() {
-	for (auto p : m_profile.plugins) {
-#if defined(Q_OS_WIN)
-		auto libName = p.libName + ".dll";
-#elif defined(Q_OS_MAC)
-		auto libName = "lib" + p.libName + ".dylib";
-#else
-		auto libName = "lib" + p.libName + ".so";
-#endif
-		auto pluginPath = QFileInfo(m_profilePath).absolutePath() + "/" + p.dir + "/" + libName;
-
-		auto loader = new QPluginLoader(pluginPath);
-		auto plugin = qobject_cast<Plugin*>(loader->instance());
-		if (plugin) {
-			m_cleanupTasks.push_back([loader]() {
-				loader->unload();
-				delete loader;
-			});
-			m_plugins.push_back(plugin);
-		} else {
-			qInfo() << loader->errorString();
+	for (auto dir : m_profile.pluginsPath) {
+		QFileInfo dirInfo(m_profilePath);
+		dir = dirInfo.absolutePath() + "/" + dir;
+		if (dirInfo.exists()) {
+			qDebug() << "Checking plugin directory:" << dir;
+			loadPluginDir(dir);
 		}
 	}
 }
 
+void MainWindow::loadPluginDir(QString dir) {
+#if defined(Q_OS_WIN)
+		constexpr auto libSuffix = ".dll";
+#elif defined(Q_OS_MAC)
+		constexpr auto libSuffix = ".dylib";
+#else
+		constexpr auto libSuffix = ".so";
+#endif
+
+	for (auto pluginPath : QDir(dir).entryList()) {
+		pluginPath = dir + '/' + pluginPath;
+		if (pluginPath.endsWith(libSuffix)) {
+			loadPlugin(pluginPath);
+		}
+	}
+}
+
+void MainWindow::loadPlugin(QString pluginPath) {
+	qDebug() << "Loading plugin:" << pluginPath;
+	auto loader = new QPluginLoader(pluginPath);
+	auto plugin = qobject_cast<Plugin*>(loader->instance());
+	if (plugin) {
+		m_cleanupTasks.push_back([loader]() {
+			loader->unload();
+			delete loader;
+		});
+		m_plugins.push_back(plugin);
+	} else {
+		qInfo() << loader->errorString();
+	}
+}
+
 void MainWindow::setupMenu() {
 	auto menu = menuBar();
 	auto fileMenu = menu->addMenu(tr("&File"));

src/nostalgia/studio/mainwindow.hpp

@@ -61,7 +61,7 @@ ox::Error ioOp(T *io, NostalgiaStudioPluginDef *obj) {
 struct NostalgiaStudioProfile {
 	QString appName;
 	QString orgName;
-	QVector<NostalgiaStudioPluginDef> plugins;
+	QVector<QString> pluginsPath;
 };
 
 template<typename T>
@@ -70,7 +70,7 @@ ox::Error ioOp(T *io, NostalgiaStudioProfile *obj) {
 	io->setFields(3);
 	err |= io->op("app_name", &obj->appName);
 	err |= io->op("org_name", &obj->orgName);
-	err |= io->op("plugins", &obj->plugins);
+	err |= io->op("plugins_path", &obj->pluginsPath);
 	return err;
 }
 
@@ -104,6 +104,10 @@ class MainWindow: public QMainWindow {
 	private:
 		void loadPlugins();
 
+		void loadPluginDir(QString path);
+
+		void loadPlugin(QString path);
+
 		void setupDockWidgets();
 
 		void setupMenu();

src/nostalgia/studio/nostalgia-studio.json

@@ -1,14 +1,8 @@
 {
 	"app_name": "Nostalgia Studio",
 	"org_name": "Drinking Tea",
-	"plugins": [
-		{
-			"dir": "../lib/nostalgia",
-			"lib_name": "NostalgiaCore-Studio"
-		},
-		{
-			"dir": "../lib/nostalgia",
-			"lib_name": "NostalgiaWorld-Studio"
-		}
+	"plugins_path": [
+		"../lib/nostalgia/plugins",
+		"../Plugins"
 	]
 }

src/nostalgia/world/studio/CMakeLists.txt

@@ -18,5 +18,5 @@ install(
 	TARGETS
 		NostalgiaWorld-Studio
 	LIBRARY DESTINATION
-		${NOSTALGIA_DIST_PLUGIN}/nostalgia
+		${NOSTALGIA_DIST_PLUGIN}
 )

src/nostalgia/world/studio/world-studio.json

@@ -0,0 +1,3 @@
+{
+	"plugin_name": "Nostalgia World"
+}