Add 7z archive writer with LZMA/LZMA2 compression#1229

Merged

adamhathcock merged 14 commits intoadamhathcock:masterfrom

DanNsk:feature/sevenzip-writer-lzma2-new

Feb 24, 2026

Commits on Feb 22, 2026

Commits on Feb 23, 2026

Strip trailing slash from directory names in 7z writer
DanNsk
committed
Merge branch 'feature/sevenzip-writer-lzma' into feature/sevenzip-writer-lzma2-new
DanNsk
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Replace IsLzma2 flag with CompressionType enum for 7z writer API consistency
DanNsk
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Pass CompressionType through compressor instead of bool isLzma2
DanNsk
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Merge feature/sevenzip-writer-lzma - use CompressionType enum, default LZMA2
DanNsk
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Code review fixes: post-dispose guard, SubStreamsInfo spec compliance, CRC dedup, exception filter
DanNsk
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Fix empty stream handling, SubStreamsInfo size tag, CRC dedup, and post-dispose guard
DanNsk
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Merge feature/sevenzip-writer-lzma review fixes into lzma2 branch
DanNsk
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Merge branch 'adamhathcock:master' into feature/sevenzip-writer-lzma2-new
DanNsk
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Adapt SevenZipFactory and WriterOptionsExtensions to upstream IWriterFactory changes
DanNsk
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Rewind output stream when non-seekable empty input leaves orphaned encoder bytes
DanNsk
committed

Commits on Feb 24, 2026

fmt
adamhathcock
committed