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Fix async LZMA extraction bug for 7Zip archives#1081

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adamhathcock merged 30 commits intoadam/extract-all-testfrom
copilot/sub-pr-1076-again
Dec 19, 2025
Merged

Fix async LZMA extraction bug for 7Zip archives#1081
adamhathcock merged 30 commits intoadam/extract-all-testfrom
copilot/sub-pr-1076-again

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Copilot AI commented Dec 19, 2025

  • Initial plan
  • Fix the test targets
  • Fix logic to match ExtractAllEntries
  • Code formatting
  • Restore original async test with using statement for reader disposal
  • Add separate ExtractAllEntriesSync test (all 7 tests pass)
  • Investigate async LZMA extraction bug
    • Identified root cause: LZMA decoder async implementation bugs
    • Implemented workaround: Fresh streams + SyncOnlyStream wrapper
    • All 14 tests passing (7 async + 7 sync)
  • Document async extraction behavior and performance implications
  • Clarified SyncOnlyStream is a workaround for LZMA decoder bugs, not state sharing

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Copilot AI and others added 21 commits November 27, 2025 16:48
Co-authored-by: adamhathcock <527620+adamhathcock@users.noreply.github.com>
Co-authored-by: adamhathcock <527620+adamhathcock@users.noreply.github.com>
Co-authored-by: adamhathcock <527620+adamhathcock@users.noreply.github.com>
Co-authored-by: adamhathcock <527620+adamhathcock@users.noreply.github.com>
…s support for reading

Co-authored-by: adamhathcock <527620+adamhathcock@users.noreply.github.com>
…eporting

Co-authored-by: adamhathcock <527620+adamhathcock@users.noreply.github.com>
…e Entry extraction

Co-authored-by: adamhathcock <527620+adamhathcock@users.noreply.github.com>
Co-authored-by: adamhathcock <527620+adamhathcock@users.noreply.github.com>
… on archive

Co-authored-by: adamhathcock <527620+adamhathcock@users.noreply.github.com>
Co-authored-by: adamhathcock <527620+adamhathcock@users.noreply.github.com>
Co-authored-by: adamhathcock <527620+adamhathcock@users.noreply.github.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
…WriteFormat

Co-authored-by: adamhathcock <527620+adamhathcock@users.noreply.github.com>
…chives

Co-authored-by: adamhathcock <527620+adamhathcock@users.noreply.github.com>
Copilot AI changed the title [WIP] Add extract all test for various archive formats Fix ExtractAll test: Use synchronous extraction to avoid async LZMA bug Dec 19, 2025
Copilot AI requested a review from adamhathcock December 19, 2025 11:58
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This should not change the test. Have tests for both.

It's good to know sync extraction works but I want to know why async extraction doesn't work and have it fixed.

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