clean old preloads

CMakeLists.txt

@@ -36,7 +36,7 @@ execute_process(
 #
 
 include_directories(.)
-add_compile_options(-std=c++20 -DWLR_USE_UNSTABLE )
+add_compile_options(-std=c++23 -DWLR_USE_UNSTABLE )
 add_compile_options(-Wall -Wextra -Wno-unused-parameter -Wno-unused-value -Wno-missing-field-initializers -Wno-narrowing)
 find_package(Threads REQUIRED)
 

src/Hyprpaper.cpp

@@ -3,6 +3,9 @@
 CHyprpaper::CHyprpaper() { }
 
 void CHyprpaper::init() {
+
+    removeOldHyprpaperImages();
+
     g_pConfigManager = std::make_unique<CConfigManager>();
     g_pIPCSocket = std::make_unique<CIPCSocket>();
 
@@ -108,6 +111,30 @@ void CHyprpaper::recheckMonitor(SMonitor* pMonitor) {
     }
 }
 
+void CHyprpaper::removeOldHyprpaperImages() {
+    int cleaned = 0;
+    uint64_t memoryFreed = 0;
+
+    for (const auto& entry : std::filesystem::directory_iterator(std::string(getenv("XDG_RUNTIME_DIR")))) {
+        if (entry.is_directory())
+            continue;
+
+        const auto FILENAME = entry.path().filename().string();
+
+        if (FILENAME.contains(".hyprpaper_")) {
+            // unlink it
+
+            memoryFreed += entry.file_size();
+            std::filesystem::remove(FILENAME);
+            cleaned++;
+        }
+    }
+
+    if (cleaned != 0) {
+        Debug::log(LOG, "Cleaned old hyprpaper preloads (%i), removing %.1fMB", cleaned, ((float)memoryFreed) / 1000000.f);
+    }
+}
+
 SMonitor* CHyprpaper::getMonitorFromName(const std::string& monname) {
     for (auto& m : m_vMonitors) {
         if (m->name == monname)

src/Hyprpaper.hpp

@@ -28,6 +28,7 @@ public:
     std::vector<std::unique_ptr<SPoolBuffer>> m_vBuffers;
     std::vector<std::unique_ptr<SMonitor>> m_vMonitors;
 
+    void        removeOldHyprpaperImages();
     void        preloadAllWallpapersFromConfig();
     void        recheckAllMonitors();
     void        ensureMonitorHasActiveWallpaper(SMonitor*);