From 19a2b35bd35ead67237577ff5e7a8dea4c37007d Mon Sep 17 00:00:00 2001
From: Georg Hagen <git.georg.hagen@madvoxel.com>
Date: Mon, 9 Jun 2025 10:16:34 +0200
Subject: [PATCH] Add DeleteFilesSmallerThan

---
 openVulkanoCpp/IO/FsUtils.cpp | 45 +++++++++++++++++++++++++++++++++++
 openVulkanoCpp/IO/FsUtils.hpp |  2 ++
 2 files changed, 47 insertions(+)

diff --git a/openVulkanoCpp/IO/FsUtils.cpp b/openVulkanoCpp/IO/FsUtils.cpp
index 0490d82..c16cf13 100644
--- a/openVulkanoCpp/IO/FsUtils.cpp
+++ b/openVulkanoCpp/IO/FsUtils.cpp
@@ -259,4 +259,49 @@ namespace OpenVulkano
 		}
 		return false;
 	}
+
+	size_t FsUtils::DeleteFilesSmallerThan(const std::filesystem::path& dir, const size_t minSize, const bool recursive) try
+	{
+		if (!fs::exists(dir) || !fs::is_directory(dir))
+		{
+			Logger::FILESYS->error("Directory does not exist or is not a directory: {}", dir);
+			return 0;
+		}
+		size_t count = 0;
+		for (const auto& entry : fs::directory_iterator(dir))
+		{
+			if (entry.is_regular_file())
+			{
+				try
+				{
+					std::uintmax_t fileSize = fs::file_size(entry);
+					if (fileSize < minSize)
+					{
+						if (fs::remove(entry.path())) count++;
+						else Logger::FILESYS->error("Failed to delete: {}", entry.path());
+					}
+				}
+				catch (const fs::filesystem_error& ex)
+				{
+					Logger::FILESYS->error("Error accessing file {}: {}", entry.path(), ex.what());
+				}
+			}
+			else if (recursive && entry.is_directory())
+			{
+				count += DeleteFilesSmallerThan(entry.path(), minSize, recursive);
+			}
+		}
+
+		return count;
+	}
+	catch (const fs::filesystem_error& ex)
+	{
+		Logger::FILESYS->error("Filesystem error: {}", ex.what());
+		return 0;
+	}
+	catch (const std::exception& ex)
+	{
+		Logger::FILESYS->error("Error: {}", ex.what());
+		return 0;
+	}
 }
diff --git a/openVulkanoCpp/IO/FsUtils.hpp b/openVulkanoCpp/IO/FsUtils.hpp
index f56f7fe..4da5364 100644
--- a/openVulkanoCpp/IO/FsUtils.hpp
+++ b/openVulkanoCpp/IO/FsUtils.hpp
@@ -51,6 +51,8 @@ namespace OpenVulkano
 		static bool DeleteEmptySubTrees(const std::filesystem::path& dir);
 
 		static bool IsTreeEmpty(const std::filesystem::path& dir);
+
+		static size_t DeleteFilesSmallerThan(const std::filesystem::path& dir, size_t minSize, bool recursive = false);
 		
 		[[nodiscard]] static ByteSize GetDirSize(const std::filesystem::path& dir);