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fix: preserve transformed streams in reader detection

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This commit is contained in:
copilot-swe-agent[bot]
2026-07-24 07:18:02 +00:00
committed by GitHub
parent 0bb5b62842
commit 3375aaa90c
2 changed files with 50 additions and 12 deletions
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14
src/SharpCompress/IO/SharpCompressStream.Create.cs
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@@ -52,8 +52,8 @@ public partial class SharpCompressStream
/// <paramref name="bufferSize"/> or <see cref="Common.Constants.RewindableBufferSize"/> to
/// avoid this.</para>
/// <para><b>Already-wrapped streams</b> — if <paramref name="stream"/> is already a
/// <see cref="SharpCompressStream"/> (or a stack that contains one), it is returned as-is to
/// prevent double-wrapping and double-buffering.</para>
/// <see cref="SharpCompressStream"/>, it is returned as-is to prevent double-wrapping and
/// double-buffering.</para>
/// </remarks>
/// <param name="stream">The underlying stream to wrap. Must not be <see langword="null"/>.</param>
/// <param name="bufferSize">
@@ -90,16 +90,6 @@ public partial class SharpCompressStream
return sharpCompressStream;
}
// Check if stream is wrapping a SharpCompressStream (e.g., via IStreamStack)
if (stream is IStreamStack streamStack)
{
var underlying = streamStack.GetStream<SharpCompressStream>();
if (underlying is not null)
{
return underlying;
}
}
if (stream.CanSeek)
{
return new SeekableSharpCompressStream(stream);