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Missing NTFS/ReFS sparse support #23

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da2x opened this issue May 16, 2020 · 3 comments
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Missing NTFS/ReFS sparse support #23

da2x opened this issue May 16, 2020 · 3 comments

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@da2x
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da2x commented May 16, 2020

NTFS requires files to be created with the FILE_ATTRIBUTE_SPARSE_FILE attribute to treat them as sparse. This is different from other modern OSes where you don’t need to do anything special.

I tested with fsutil.exe sparse queryflag supposedly_sparse.file and various calls to check file sizes, and found that the files aren’t marked as sparse files on NTFS.
@da2x da2x mentioned this issue May 16, 2020
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@hackergrrl hackergrrl mentioned this issue Jul 27, 2020
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@RangerMauve
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Is there a way to set this flag in the node.js FS module? I can't find any docs for it.

@RangerMauve RangerMauve mentioned this issue Nov 9, 2020
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@da2x
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da2x commented Nov 9, 2020

Maybe https://github.com/markablov/win_ioctl ?

@xori xori mentioned this issue Jan 8, 2021
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@mafintosh
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In latest (sparse: true)

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Sparse support
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@mafintosh @RangerMauve @da2x