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nix copy should warn early if you forgot --no-check-sigs #1002

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opened 2025-10-03 19:12:38 +00:00 by vriska · 0 comments
vriska commented 2025-10-03 19:12:38 +00:00
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Is your feature request related to a problem? Please describe.

If nix copy is missing --no-check-sigs, this is only apparent at the end of copying. This is very frustrating when copying large closures.

Describe the solution you'd like

Ideally, it would fail early as soon as it tries to copy an untrusted derivation.

Describe alternatives you've considered

An alternative that would likely be easier to implement would be to warn if the path being copied doesn't have any signatures on the source.

## Is your feature request related to a problem? Please describe. If `nix copy` is missing `--no-check-sigs`, this is only apparent at the end of copying. This is very frustrating when copying large closures. ## Describe the solution you'd like Ideally, it would fail early as soon as it tries to copy an untrusted derivation. ## Describe alternatives you've considered An alternative that would likely be easier to implement would be to warn if the path being copied doesn't have any signatures on the source.
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Probably affects CppNix. This is a best-effort tag for troubles in old code; it exists to inform the CppNix team about problems they might care about also.

  
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ux

makes the user experience better :)

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Reference: lix-project/lix#1002
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