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Unclear error message when running unknown job. #33

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Zimmi48 opened this issue Jun 2, 2021 · 2 comments
Open

Unclear error message when running unknown job. #33

Zimmi48 opened this issue Jun 2, 2021 · 2 comments

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@Zimmi48
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Zimmi48 commented Jun 2, 2021

nix-shell --argstr job foo will produce:

error: nix-shell requires a single derivation
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Zimmi48 commented Jun 2, 2021

This can be especially confusing when the unknown job is simply a known Coq project that is missing from coqPackages.

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Zimmi48 commented Dec 16, 2021

As discussed in https://coq.zulipchat.com/#narrow/stream/290990-Nix-toolbox.20devs.20.26.20users/topic/.60nix-shell.20https.3A.2F.2Fcoq.2Einria.2Efr.2Fnix.2Ftoolbox.20--argstr.20job.60, we should ensure that we fail at evaluation time instead of producing an empty derivation in such cases.

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