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nix develop does not remove enough of output checks #997

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opened 2025-09-19 14:39:29 +00:00 by raito · 2 comments
raito commented 2025-09-19 14:39:29 +00:00
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Describe the bug

Output checks can prevent nix develop to run if you exclude things like bash.

Steps To Reproduce

  1. nix develop nixpkgs#systemd
  2. See disallowed reference error.

Expected behavior

No error.

nix --version output

2.94.0-dev-2025-09-11-191551-raito-edition

Additional context

Came up in the NixOS systemd room. I didn't notice because I use nix-shell which does not suffer from this limitation.

## Describe the bug Output checks can prevent `nix develop` to run if you exclude things like bash. ## Steps To Reproduce 1. nix develop nixpkgs#systemd 2. See disallowed reference error. ## Expected behavior No error. ## `nix --version` output 2.94.0-dev-2025-09-11-191551-raito-edition ## Additional context Came up in the NixOS systemd room. I didn't notice because I use `nix-shell` which does not suffer from this limitation.
lix-bot commented 2025-09-19 15:58:10 +00:00
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This issue was mentioned on Gerrit on the following CLs:

  • commit message in cl/4182 ("nix3/develop: support structured attrs-based output checks")
<!-- GERRIT_LINKBOT: {"cls": [{"backlink": "https://gerrit.lix.systems/c/lix/+/4182", "number": 4182, "kind": "commit message"}], "cl_meta": {"4182": {"change_title": "nix3/develop: support structured attrs-based output checks"}}} --> This issue was mentioned on Gerrit on the following CLs: * commit message in [cl/4182](https://gerrit.lix.systems/c/lix/+/4182) ("nix3/develop: support structured attrs-based output checks")
jade commented 2025-09-21 18:36:44 +00:00
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huh, i thought nix-shell had the same or similar bug but if it did it is my bad for not filing it. I've definitely hit this nix develop bug before though!

huh, i thought nix-shell had the same or similar bug but if it did it is my bad for not filing it. I've definitely hit this nix develop bug before though!
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makes the user experience better :)

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Reference: lix-project/lix#997
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