Yuya Nishihara c6df0ba4c3 file_util: don't try to overwrite existing content-addressed file on Windows ... The doc says persist() replaces the destination file as rename() would do on Unix. persist_noclobber() doesn't, and is probably more reliable on Windows. I don't know if persist() is completely atomic on Windows, but if it isn't, it might be the source of the "permission denied" error under highly contended situation. https://docs.rs/tempfile/latest/tempfile/struct.NamedTempFile.html#method.persist https://github.com/Stebalien/tempfile/blob/v3.8.0/src/file/imp/windows.rs#L77 We could use persist_noclobber() on all platforms, but it's more involved on Unix. https://github.com/Stebalien/tempfile/blob/v3.8.0/src/file/imp/unix.rs#L107		2023-12-17 08:20:07 +09:00
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src	file_util: don't try to overwrite existing content-addressed file on Windows	2023-12-17 08:20:07 +09:00
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