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fix(fetch-content): check the compressed stream's integrity on Windows - #1074
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jcristau merged 1 commit intoOct 14, 2026
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When extracting with tarfile, reading stops at the end-of-archive marker, which can leave the end of the compressed stream unread. For gzip, that means its CRC never gets checked, so a corrupted archive whose deflate data still decodes would extract without error. Read the decompressed stream to the end after extracting, like the tar pipe already does. This made test_stream_extract_broken_archive_not_retried[gz] fail intermittently on Windows.
bhearsum
approved these changes
Oct 14, 2026
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When extracting with tarfile, reading stops at the end-of-archive marker, which can leave the end of the compressed stream unread. For gzip, that means its CRC never gets checked, so a corrupted archive whose deflate data still decodes would extract without error. Read the decompressed stream to the end after extracting, like the tar pipe already does.
This made test_stream_extract_broken_archive_not_retried[gz] fail intermittently on Windows.