updated build system

support/include/utils/encrypting_reader.hpp

@@ -87,16 +87,16 @@ private:
   auto reader_function(char *buffer, size_t size, size_t nitems) -> size_t;
 
 public:
-  [[nodiscard]] static auto
-  calculate_decrypted_size(std::uint64_t total_size) -> std::uint64_t;
+  [[nodiscard]] static auto calculate_decrypted_size(std::uint64_t total_size)
+      -> std::uint64_t;
 
   [[nodiscard]] static auto
   calculate_encrypted_size(std::string_view source_path) -> std::uint64_t;
 
   [[nodiscard]] auto create_iostream() const -> std::shared_ptr<iostream>;
 
-  [[nodiscard]] static constexpr auto
-  get_encrypted_chunk_size() -> std::size_t {
+  [[nodiscard]] static constexpr auto get_encrypted_chunk_size()
+      -> std::size_t {
     return encrypted_chunk_size_;
   }
 
@@ -116,9 +116,12 @@ public:
     return error_return_;
   }
 
-  [[nodiscard]] auto get_iv_list()
-      -> std::vector<std::array<unsigned char,
-                                crypto_aead_xchacha20poly1305_IETF_NPUBBYTES>> {
+  [[nodiscard]] static constexpr auto get_header_size() -> std::size_t {
+    return header_size_;
+  }
+
+  [[nodiscard]] auto get_iv_list() -> std::vector<
+      std::array<unsigned char, crypto_aead_xchacha20poly1305_IETF_NPUBBYTES>> {
     return iv_list_;
   }
 
@@ -131,8 +134,8 @@ public:
   }
 
   [[nodiscard]] static auto reader_function(char *buffer, size_t size,
-                                            size_t nitems,
-                                            void *instream) -> size_t {
+                                            size_t nitems, void *instream)
+      -> size_t {
     return reinterpret_cast<encrypting_reader *>(instream)->reader_function(
         buffer, size, nitems);
   }