Added file flags to Manifest.FileEntry

TEKSteamClient.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 	<PropertyGroup>
 		<TargetFramework>net8.0</TargetFramework>
-		<BaseVersion>1.1.1</BaseVersion>
+		<BaseVersion>1.2.0</BaseVersion>
 		<Version>$(BaseVersion)</Version>
 		<Version Condition="'$(GITHUB_RUN_NUMBER)' != ''">$(BaseVersion)-alpha.$(GITHUB_RUN_NUMBER)</Version>
 		<Authors>Nuclearist</Authors>

protos/manifest/payload.proto

@@ -10,6 +10,9 @@ message Payload
 		enum FileFlag
 		{
 			NONE = 0;
+			READONLY = 8;
+			HIDDEN = 16;
+			EXECUTABLE = 32;
 			DIRECTORY = 64;
 		}
 		message Chunk

src/Manifest/DepotManifest.cs

@@ -128,10 +128,17 @@ void loadDirectory(int index, int payloadEntryIndex)
 						Checksum = chunk.Checksum
 				    };
 				new Span<ChunkEntry>(ChunkBuffer, chunkStartOffset, numChunks).Sort();
+				FileEntry.Flag flags = 0;
+				if ((file.Flags & FileFlag.Readonly) is not FileFlag.None)
+					flags = FileEntry.Flag.ReadOnly;
+				if ((file.Flags & FileFlag.Hidden) is not FileFlag.None)
+					flags |= FileEntry.Flag.Hidden;
+				if ((file.Flags & FileFlag.Executable) is not FileFlag.None)
+					flags |= FileEntry.Flag.Executable;
 				FileBuffer[fileOffset++] = new()
 				{
 				    Name = numSepChars > 0 ? Path.GetFileName(file.Name) : file.Name,
-					Size = file.Size,
+					SizeAndFlags = file.Size | ((long)flags << 56),
 				    Chunks = new(ChunkBuffer, chunkStartOffset, numChunks)
 				};
 			}
@@ -209,7 +216,7 @@ public DepotManifest(string filePath, ItemIdentifier item, ulong id)
 			FileBuffer[i] = new()
 			{
 				Name = Encoding.UTF8.GetString(buffer.Slice(nameOffset, nameLength)),
-				Size = Unsafe.As<int, long>(ref Unsafe.Add(ref spanRef, offset)),
+				SizeAndFlags = Unsafe.As<int, long>(ref Unsafe.Add(ref spanRef, offset)),
 				Chunks = new(ChunkBuffer, chunkOffset, numChunks)
 			};
 			offset += 4;
@@ -289,7 +296,7 @@ public void WriteToFile(string filePath)
 		{
 			int nameLength = Encoding.UTF8.GetBytes(file.Name, buffer[nameOffset..]);
 			nameOffset += nameLength;
-			Unsafe.As<int, long>(ref Unsafe.Add(ref spanRef, offset)) = file.Size;
+			Unsafe.As<int, long>(ref Unsafe.Add(ref spanRef, offset)) = file.SizeAndFlags;
 			offset += 2;
 			entriesSpan[offset++] = nameLength;
 			entriesSpan[offset++] = file.Chunks.Count;

src/Manifest/FileEntry.cs

@@ -7,18 +7,34 @@ public readonly struct FileEntry
 {
 	/// <summary>Name of the file.</summary>
 	public required string Name { get; init; }
+	/// <summary>Total size of the file OR'ed with its flags. Used only during initialization.</summary>
+	public required long SizeAndFlags { get; init; }
 	/// <summary>Total size of the file.</summary>
-	public required long Size { get; init; }
+	public long Size => SizeAndFlags & 0x00FFFFFFFFFFFFFF;
+	/// <summary>Extra flags of the file.</summary>
+	public Flag Flags => (Flag)((SizeAndFlags & 0x7F00000000000000) >> 56);
 	/// <summary>Chunks that compose the file.</summary>
 	public required ArraySegment<ChunkEntry> Chunks { get; init; }
+	/// <summary>Extra flags describing file's attributes or permissions.</summary>
+	[Flags]
+	public enum Flag
+	{
+		/// <summary>The file has <see cref="FileAttributes.ReadOnly"/> attribute.</summary>
+		ReadOnly = 1 << 0,
+		/// <summary>The file has <see cref="FileAttributes.Hidden"/> attribute.</summary>
+		Hidden = 1 << 1,
+		/// <summary>The file has <see cref="UnixFileMode.UserExecute"/>, <see cref="UnixFileMode.GroupExecute"/> and <see cref="UnixFileMode.OtherExecute"/> permissions.</summary>
+		Executable = 1 << 2
+	}
 	/// <summary>Structure used in <see cref="DepotDelta"/> to store indexes of files and chunks that must be acquired.</summary>
 	internal readonly struct AcquisitionEntry
 	{
 		/// <summary>Index of the file entry in its parent directory.</summary>
 		public required int Index { get; init; }
 		/// <summary>File's chunks that must be acquired. If empty, the whole file is acquired.</summary>
 		public required ArraySegment<ChunkEntry> Chunks { get; init; }
-		//struct int long
+		/// <summary>Structure storing chunk's index along with its optional offset in chunk buffer file.</summary>
+		/// <param name="index">Index of the chunk in its file.</param>
 		public readonly struct ChunkEntry(int index)
 		{
 			/// <summary>Index of the chunk entry in its file.</summary>