`sync` need `--download` flag to ensure `--checksum` get hash and avoid falling back to `--size-only` about rclone

[ncw]

I think what you are saying is that you'd like --download to work when using rclone sync/rclone copy/rclone move which would enable the use of any hash?

This isn't possible at the moment.

However you can do it using two steps.

First you would run a rclone check to do the full hash checks where necessary

rclone check --download src: dst: --differ files --missing-on-dst-files --missing-on-src files

This would give you a list of files which the checksum differs.

You would then do your sync using this file and telling rclone to transfer regardless, so something like

rclone sync src: dst: --files-from-raw files --ignore-times

[WXZhao7]

Thank you for the suggestion! The proposed workaround using rclone check followed by rclone sync indeed seems practical for ensuring that files are correctly transferred based on their checksums. However, I am wondering why it was mentioned that "This isn't possible at the moment." Are there technical limitations or specific reasons why this integration isn't feasible at the moment?

Thanks again for the useful workaround, and I look forward to further insights on this issue!