SHA checksum validation

[kurzum]

Add a CLI option to validate file integrity.

• Check the SHA sum of downloaded files against the Databus metadata
• If no SHA value is provided, skip validation but continue the download

[shivansh31414]

Hi! I'd love to work on this feature. Could you please assign it to me?
My plan is to:

• Extract SHA256 metadata during the download process
• Compute the hash of each downloaded file locally
• Compare the two and raise a warning if there's a mismatch
• Add a CLI flag like --validate-sha to toggle this behavior

Let me know if this approach works or if you'd prefer something different

[spyke7]

Hi team ! I would also like to work on this feature

[Integer-Ctrl]

Hi @shivansh31414 thanks for your interest!

Yes, your plan sounds good. Adding a toggle such as --validate-sha would be a good approach.
Maybe this could be more advanced:

• --validate-sha off → no SHA validation
• --validate-sha warning → report mismatches as warnings but continue (default if cli option not specified)
• --validate-sha error → stop execution if any file has a checksum mismatch

That would give users flexible control depending on their workflow.

[Integer-Ctrl]

@spyke7 I think it's sufficient for one person to handle this issue, but we really appreciate your interest. Thanks!

[Integer-Ctrl]

User no longer working on issue. Reopened.