Implemented pck path padding null byte handling

CMakeLists.txt

@@ -4,7 +4,7 @@ cmake_minimum_required(VERSION 3.10)
 project(GodotPckTool)
 
 set(GODOT_PCK_TOOL_VERSION_MAJOR 1)
-set(GODOT_PCK_TOOL_VERSION_MINOR 2)
+set(GODOT_PCK_TOOL_VERSION_MINOR 3)
 
 set(GODOT_PCK_TOOL_VERSION_STR "${GODOT_PCK_TOOL_VERSION_MAJOR}.${GODOT_PCK_TOOL_VERSION_MINOR}")
 

src/pck/PckFile.cpp

@@ -64,6 +64,10 @@ bool PckFile::Load()
 
         File->read(entry.Path.data(), pathLength);
 
+        // Remove trailing null bytes
+        while(!entry.Path.empty() && entry.Path.back() == '\0')
+            entry.Path.pop_back();
+
         entry.Offset = Read64();
         entry.Size = Read64();
 
@@ -118,9 +122,19 @@ bool PckFile::Save()
     // First write blank file entries as placeholders
     for(const auto& [_, entry] : Contents) {
 
-        Write32(entry.Path.size());
+        const size_t pathToWriteSize =
+            entry.Path.size() + (entry.Path.size() % PadPathsToMultipleWithNULLS);
+        const size_t padding = pathToWriteSize - entry.Path.size();
+
+        Write32(pathToWriteSize);
         File->write(entry.Path.data(), entry.Path.size());
 
+        // Padding null bytes
+        for(size_t i = 0; i < padding; ++i) {
+            char null = '\0';
+            File->write(&null, 1);
+        }
+
         continueWriteIndex[&entry] = File->tellg();
         // No offset yet
         Write64(0);

src/pck/PckFile.h

@@ -92,6 +92,9 @@ class PckFile {
     uint32_t MinorGodotVersion = 0;
     uint32_t PatchGodotVersion = 0;
 
+    //! Add trailing null bytes to the length of a path until it is a multiple of this size
+    size_t PadPathsToMultipleWithNULLS = 4;
+
     std::map<std::string, ContainedFile> Contents;
 };