Add hyprland version compatibility check

CMakeLists.txt

@@ -22,6 +22,12 @@ add_library(hy3 SHARED
 	src/SelectionHook.cpp
 )
 
+option(HY3_NO_VERSION_CHECK "Disable hyprland version check" FALSE)
+
+if (HY3_NO_VERSION_CHECK)
+	target_compile_definitions(hy3 PRIVATE -DHY3_NO_VERSION_CHECK=TRUE)
+endif()
+
 target_include_directories(hy3 PRIVATE ${DEPS_INCLUDE_DIRS})
 
 install(TARGETS hy3 LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR})

compile_commands_bear.sh

@@ -1,4 +1,4 @@
 rm -rf build
-cmake -DCMAKE_BUILD_TYPE=Debug -B build
 bear -- cmake --build build
+cmake -DCMAKE_BUILD_TYPE=Debug -DHY3_NO_VERSION_CHECK=TRUE -B build
 sed -i 's/-std=gnu++23/-std=gnu++2b/g' compile_commands.json

src/main.cpp

@@ -1,7 +1,9 @@
 #include <optional>
+#include <stdexcept>
 
 #include <hyprland/src/Compositor.hpp>
 #include <hyprland/src/plugins/PluginAPI.hpp>
+#include <hyprland/src/version.h>
 
 #include "SelectionHook.hpp"
 #include "dispatchers.hpp"
@@ -12,6 +14,19 @@ APICALL EXPORT std::string PLUGIN_API_VERSION() { return HYPRLAND_API_VERSION; }
 APICALL EXPORT PLUGIN_DESCRIPTION_INFO PLUGIN_INIT(HANDLE handle) {
 	PHANDLE = handle;
 
+#ifndef HY3_NO_VERSION_CHECK
+	if (GIT_COMMIT_HASH != std::string(__hyprland_api_get_hash())) {
+		HyprlandAPI::addNotification(
+		    PHANDLE,
+		    "[hy3] Hy3 was compiled for a different version of hyprland; refusing to start.",
+		    CColor {1.0, 0.2, 0.2, 1.0},
+		    10000
+		);
+
+		throw std::runtime_error("[hy3] target hyprland version mismatch");
+	}
+#endif
+
 	selection_hook::init();
 
 #define CONF(NAME, TYPE, VALUE)                                                                    \