Contemplate making `--arg` and `--argstr` work on `nix eval` #263

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opened 2024-05-04 23:31:10 +00:00 by jade · 1 comment

jade commented

2024-05-04 23:31:10 +00:00

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Implementation: https://github.com/NixOS/nix/pull/8992

Currently nix eval --argstr meow blah --expr "{meow, blah}: 2" gives you a lambda. This is obviously not what you want, so we should do better.

Either we should:

reject --argstr for --expr and commit to bad behaviour
allow --argstr for --expr, which specifically is unambiguous

Implementation: https://github.com/NixOS/nix/pull/8992 Currently `nix eval --argstr meow blah --expr "{meow, blah}: 2"` gives you a lambda. This is obviously not what you want, so we should do better. Either we should: - reject `--argstr` for `--expr` and commit to bad behaviour - allow `--argstr` for `--expr`, which *specifically* is unambiguous

jade added the

label 2024-05-04 23:31:18 +00:00

jade added the

E/help wanted

label 2024-05-16 02:34:56 +00:00

jade commented

2024-05-16 02:36:25 +00:00

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We agree that we don't want to autocall except if --arg/--argstr is specified, so that would have to be a modification to the PR changes.

We agree that we don't want to autocall except if `--arg`/`--argstr` is specified, so that would have to be a modification to the PR changes.

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Reference: lix-project/lix#263

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Contemplate making --arg and --argstr work on nix eval #263

Contemplate making `--arg` and `--argstr` work on `nix eval` #263