From 1d5b113a386585a78a3a99b53260fae64e54377b Mon Sep 17 00:00:00 2001
From: Georg Hagen <git.georg.hagen@madvoxel.com>
Date: Fri, 30 May 2025 20:01:17 +0200
Subject: [PATCH] Add EnsureExtension

---
 openVulkanoCpp/IO/FsUtils.cpp | 14 ++++++++++++++
 openVulkanoCpp/IO/FsUtils.hpp |  2 ++
 2 files changed, 16 insertions(+)

diff --git a/openVulkanoCpp/IO/FsUtils.cpp b/openVulkanoCpp/IO/FsUtils.cpp
index 2f8be50..7a7356e 100644
--- a/openVulkanoCpp/IO/FsUtils.cpp
+++ b/openVulkanoCpp/IO/FsUtils.cpp
@@ -226,4 +226,18 @@ namespace OpenVulkano
 
 		return files;
 	}
+
+	std::string FsUtils::EnsureExtension(const std::string& fileName, const std::string_view& extension)
+	{
+		if (!extension.empty() && !Utils::EndsWith(fileName, extension))
+		{
+			std::string name;
+			name.reserve(fileName.length() + 2 + extension.length());
+			name += fileName;
+			if (extension[0] != '.') name += ".";
+			name += std::string(extension);
+			return name;
+		}
+		return fileName;
+	}
 }
diff --git a/openVulkanoCpp/IO/FsUtils.hpp b/openVulkanoCpp/IO/FsUtils.hpp
index e30756c..c0e2137 100644
--- a/openVulkanoCpp/IO/FsUtils.hpp
+++ b/openVulkanoCpp/IO/FsUtils.hpp
@@ -59,5 +59,7 @@ namespace OpenVulkano
 		[[nodiscard]] static std::string ToValidFileName(std::string filename);
 
 		[[maybe_unused]] [[nodiscard]] static std::vector<std::filesystem::path> FilesWithExtension(const std::filesystem::path& dir, std::string ext);
+
+		[[nodiscard]] static std::string EnsureExtension(const std::string& filename, const std::string_view& extension);
 	};
 }