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WriteEntryToDirectory with GZipReader fails #627

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opened 2026-01-29 22:14:50 +00:00 by claunia · 0 comments
claunia commented 2026-01-29 22:14:50 +00:00
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Originally created by @edwardmjackson on GitHub (Apr 18, 2024).

The generic extraction mechanism implemented in ExtractionMethods.cs appears to fail for GZip files.

Path.Combine throws an exception at 900190cf54/src/SharpCompress/Common/ExtractionMethods.cs (L60)

due to fileName being null, which is set here

900190cf54/src/SharpCompress/Common/ExtractionMethods.cs (L39)

StackTrace:
   at System.IO.Path.Combine(String path1, String path2) in System.IO\Path.cs:line 310
   at SharpCompress.Common.ExtractionMethods.WriteEntryToDirectory(IEntry entry, String destinationDirectory, ExtractionOptions options, Action`2 write) in SharpCompress.Common\ExtractionMethods.cs:line 44
   at SharpCompress.Readers.IReaderExtensions.WriteEntryToDirectory(IReader reader, String destinationDirectory, ExtractionOptions options) in SharpCompress.Readers\IReaderExtensions.cs:line 31
   at SharpCompress.Readers.IReaderExtensions.WriteAllToDirectory(IReader reader, String destinationDirectory, ExtractionOptions options) in SharpCompress.Readers\IReaderExtensions.cs:line 22
Originally created by @edwardmjackson on GitHub (Apr 18, 2024). The generic extraction mechanism implemented in ExtractionMethods.cs appears to fail for GZip files. Path.Combine throws an exception at https://github.com/adamhathcock/sharpcompress/blob/900190cf54423ebc1187b647094b118881ab9485/src/SharpCompress/Common/ExtractionMethods.cs#L60 due to fileName being null, which is set here https://github.com/adamhathcock/sharpcompress/blob/900190cf54423ebc1187b647094b118881ab9485/src/SharpCompress/Common/ExtractionMethods.cs#L39 ``` StackTrace: at System.IO.Path.Combine(String path1, String path2) in System.IO\Path.cs:line 310 at SharpCompress.Common.ExtractionMethods.WriteEntryToDirectory(IEntry entry, String destinationDirectory, ExtractionOptions options, Action`2 write) in SharpCompress.Common\ExtractionMethods.cs:line 44 at SharpCompress.Readers.IReaderExtensions.WriteEntryToDirectory(IReader reader, String destinationDirectory, ExtractionOptions options) in SharpCompress.Readers\IReaderExtensions.cs:line 31 at SharpCompress.Readers.IReaderExtensions.WriteAllToDirectory(IReader reader, String destinationDirectory, ExtractionOptions options) in SharpCompress.Readers\IReaderExtensions.cs:line 22 ```
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Reference: starred/sharpcompress#627
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