Add `import-project` and `export-project` (#183)

* Add `import-project` and `export-project` command line parsing

1 files changed, 39 insertions, 5 deletions

diff --git a/zencore/compress.cpp b/zencore/compress.cpp
index 35a5acb3a..15cc5f6a7 100644
--- a/zencore/compress.cpp
+++ b/zencore/compress.cpp
@@ -65,7 +65,8 @@ struct BufferHeader
 		BufferHeader Header;
 		if (sizeof(BufferHeader) <= CompressedData.GetSize())
 		{
-			CompressedData.CopyTo(MakeMutableMemoryView(&Header, &Header + 1));
+			CompositeBuffer::Iterator It;
+			CompressedData.CopyTo(MakeMutableMemoryView(&Header, &Header + 1), It);
 			Header.ByteSwap();
 		}
 		return Header;
@@ -235,10 +236,13 @@ BlockEncoder::Compress(const CompositeBuffer& RawData, const uint64_t BlockSize)
 	{
 		UniqueBuffer	  RawBlockCopy;
 		MutableMemoryView CompressedBlocksView = CompressedData.GetMutableView() + sizeof(BufferHeader) + MetaSize;
+
+		CompositeBuffer::Iterator It = RawData.GetIterator(0);
+
 		for (uint64_t RawOffset = 0; RawOffset < RawSize;)
 		{
 			const uint64_t	 RawBlockSize = zen::Min(RawSize - RawOffset, BlockSize);
-			const MemoryView RawBlock	  = RawData.ViewOrCopyRange(RawOffset, RawBlockSize, RawBlockCopy);
+			const MemoryView RawBlock	  = RawData.ViewOrCopyRange(It, RawBlockSize, RawBlockCopy);
 			RawHash.Append(RawBlock);
 
 			MutableMemoryView CompressedBlock = CompressedBlocksView;
@@ -669,8 +673,10 @@ BufferHeader::IsValid(const CompositeBuffer& CompressedData)
 		{
 			if (const BaseDecoder* const Decoder = GetDecoder(Header.Method))
 			{
-				UniqueBuffer	 HeaderCopy;
-				const MemoryView HeaderView = CompressedData.ViewOrCopyRange(0, Decoder->GetHeaderSize(Header), HeaderCopy);
+				UniqueBuffer			  HeaderCopy = UniqueBuffer::Alloc(Decoder->GetHeaderSize(Header));
+				CompositeBuffer::Iterator It;
+				CompressedData.CopyTo(HeaderCopy.GetMutableView(), It);
+				const MemoryView HeaderView = HeaderCopy.GetView();
 				if (Header.Crc32 == BufferHeader::CalculateCrc32(HeaderView))
 				{
 					return true;
@@ -851,6 +857,30 @@ CompressedBuffer::FromCompressed(SharedBuffer&& InCompressedData)
 	return Local;
 }
 
+CompressedBuffer
+CompressedBuffer::FromCompressedNoValidate(IoBuffer&& InCompressedData)
+{
+	if (InCompressedData.GetSize() <= sizeof(detail::BufferHeader))
+	{
+		return CompressedBuffer();
+	}
+	CompressedBuffer Local;
+	Local.CompressedData = CompositeBuffer(SharedBuffer(std::move(InCompressedData)));
+	return Local;
+}
+
+CompressedBuffer
+CompressedBuffer::FromCompressedNoValidate(CompositeBuffer&& InCompressedData)
+{
+	if (InCompressedData.GetSize() <= sizeof(detail::BufferHeader))
+	{
+		return CompressedBuffer();
+	}
+	CompressedBuffer Local;
+	Local.CompressedData = std::move(InCompressedData);
+	return Local;
+}
+
 uint64_t
 CompressedBuffer::GetRawSize() const
 {
@@ -927,7 +957,9 @@ CompressedBuffer::DecompressToComposite() const
 }
 
 bool
-CompressedBuffer::TryGetCompressParameters(OodleCompressor& OutCompressor, OodleCompressionLevel& OutCompressionLevel) const
+CompressedBuffer::TryGetCompressParameters(OodleCompressor&		  OutCompressor,
+										   OodleCompressionLevel& OutCompressionLevel,
+										   uint64_t&			  OutBlockSize) const
 {
 	using namespace detail;
 	if (CompressedData)
@@ -937,10 +969,12 @@ CompressedBuffer::TryGetCompressParameters(OodleCompressor& OutCompressor, Oodle
 			case CompressionMethod::None:
 				OutCompressor		= OodleCompressor::NotSet;
 				OutCompressionLevel = OodleCompressionLevel::None;
+				OutBlockSize		= 0;
 				return true;
 			case CompressionMethod::Oodle:
 				OutCompressor		= OodleCompressor(Header.Compressor);
 				OutCompressionLevel = OodleCompressionLevel(Header.CompressionLevel);
+				OutBlockSize		= uint64_t(1) << Header.BlockSizeExponent;
 				return true;
 			default:
 				break;