sys: Refactor tar file operations into their own class

lib/libimhex/include/hex/helpers/fs.hpp

@@ -50,6 +50,12 @@ namespace hex::fs {
         return std::filesystem::remove(path, error) && !error;
     }
 
+    [[maybe_unused]]
+    static inline bool removeAll(const std::fs::path &path) {
+        std::error_code error;
+        return std::filesystem::remove_all(path, error) && !error;
+    }
+
     [[maybe_unused]]
     static inline uintmax_t getFileSize(const std::fs::path &path) {
         std::error_code error;

lib/libimhex/include/hex/helpers/tar.hpp

@@ -0,0 +1,35 @@
+#pragma once
+
+#include <hex.hpp>
+
+#include <hex/helpers/fs.hpp>
+
+#include <microtar.h>
+
+namespace hex {
+
+    class Tar {
+    public:
+        enum class Mode {
+            Read,
+            Write,
+            Create
+        };
+
+        Tar() = default;
+        Tar(const std::fs::path &path, Mode mode);
+        ~Tar();
+
+        std::vector<u8> read(const std::fs::path &path);
+        void write(const std::fs::path &path, const std::vector<u8> &data);
+
+        std::vector<std::fs::path> listEntries();
+
+        void extract(const std::fs::path &path, const std::fs::path &outputPath);
+        void extractAll(const std::fs::path &outputPath);
+
+    private:
+        mtar_t m_ctx = { };
+    };
+
+}