1 files changed, 56 insertions, 0 deletions
diff --git a/Source/Internal/zip_util.h b/Source/Internal/zip_util.h
new file mode 100644
index 00000000..20eb938c
--- /dev/null
+++ b/Source/Internal/zip_util.h
@@ -0,0 +1,56 @@
+//-----------------------------------------------------------------------------
+//           Name: zip_util.h
+//      Developer: Wolfire Games LLC
+//    Description: 
+//        License: Read below
+//-----------------------------------------------------------------------------
+//
+//   Copyright 2022 Wolfire Games LLC
+//
+//   Licensed under the Apache License, Version 2.0 (the "License");
+//   you may not use this file except in compliance with the License.
+//   You may obtain a copy of the License at
+//
+//       http://www.apache.org/licenses/LICENSE-2.0
+//
+//   Unless required by applicable law or agreed to in writing, software
+//   distributed under the License is distributed on an "AS IS" BASIS,
+//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//   See the License for the specific language governing permissions and
+//   limitations under the License.
+//
+//-----------------------------------------------------------------------------
+#pragma once
+
+#include <string>
+
+enum OverwriteType {
+    _NO_OVERWRITE,
+    _YES_OVERWRITE,
+    _APPEND_OVERWRITE
+};
+
+struct ExpandedZipEntry;
+class ExpandedZipFile {
+    char *buf;
+    char *filename_buf;
+    ExpandedZipEntry *entries;
+    unsigned num_entries;
+
+public:
+    ExpandedZipFile();
+    ~ExpandedZipFile();
+    void Dispose();
+    void ResizeEntries(unsigned num_entries);
+    void ResizeFilenameBuffer(unsigned num_chars);
+    void ResizeDataBuffer(unsigned num_bytes);
+    void SetFilename(unsigned offset, const char* data, unsigned size);
+    void SetData(unsigned offset, const char* data, unsigned size);
+    void SetEntry(unsigned which, unsigned file_name_offset, unsigned data_offset, unsigned size);
+    void GetEntry( unsigned which, const char* &filename, const char* &data, unsigned &size );
+    unsigned GetNumEntries(){ return num_entries; }
+};
+
+void Zip(const std::string &src_file_path, const std::string &zip_file_path, const std::string &in_zip_file_path, OverwriteType overwrite);
+void UnZip(const std::string &zip_file_path, ExpandedZipFile &expanded_zip_file);
+void PrintZipFileInfo(const std::string &zip_file_path);