From d9800c1a28499d31d3bfd31ad010f225a9956a99 Mon Sep 17 00:00:00 2001
From: Robin Gustafsson <robin@rgson.se>
Date: Tue, 1 Aug 2023 18:23:03 +0200
Subject: [PATCH] Block saving of Godot4 .pck files

The PCK version 2 format is implemented for reading but not for writing.
---
 src/pck/PckFile.cpp | 7 ++++++-
 src/pck/PckFile.h   | 3 ++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/pck/PckFile.cpp b/src/pck/PckFile.cpp
index c178b3d..0e4c551 100644
--- a/src/pck/PckFile.cpp
+++ b/src/pck/PckFile.cpp
@@ -41,7 +41,7 @@ bool PckFile::Load()
     MinorGodotVersion = Read32();
     PatchGodotVersion = Read32();
 
-    if(FormatVersion > MAX_SUPPORTED_PCK_VERSION) {
+    if(FormatVersion > MAX_SUPPORTED_PCK_VERSION_LOAD) {
         std::cout << "ERROR: pck is unsupported version: " << FormatVersion << "\n";
         return false;
     }
@@ -112,6 +112,11 @@ bool PckFile::Load()
 // ------------------------------------ //
 bool PckFile::Save()
 {
+    if(FormatVersion > MAX_SUPPORTED_PCK_VERSION_SAVE) {
+        std::cout << "ERROR: cannot save pck version: " << FormatVersion << "\n";
+        return false;
+    }
+
     const auto tmpWrite = Path + ".write";
 
     File = std::fstream(tmpWrite, std::ios::trunc | std::ios::out | std::ios::binary);
diff --git a/src/pck/PckFile.h b/src/pck/PckFile.h
index 68b13be..bb4cd12 100644
--- a/src/pck/PckFile.h
+++ b/src/pck/PckFile.h
@@ -17,7 +17,8 @@ constexpr uint32_t PCK_HEADER_MAGIC = 0x43504447;
 constexpr uint32_t PACK_DIR_ENCRYPTED = 1;
 
 // Highest pck version supported by this tool
-constexpr int MAX_SUPPORTED_PCK_VERSION = 2;
+constexpr int MAX_SUPPORTED_PCK_VERSION_LOAD = 2;
+constexpr int MAX_SUPPORTED_PCK_VERSION_SAVE = 1;
 
 //! \brief A single pck file object. Handles reading and writing
 //!