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nixos/lib/eval-config.nix: Add extraModules parameter for opt-in purity #51850

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merged 1 commit into from Aug 24, 2020

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roberth
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@roberth roberth commented Dec 10, 2018

Motivation for this change

This allows setting extraModules explicitly, making it possible to invoke NixOS without the NIXOS_EXTRA_MODULE_PATH impurity.

Thanks @ottidmes for discovering this!

Things done
  • Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS)
  • Built on platform(s)
    • NixOS
    • macOS
    • other Linux distributions
  • Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
  • Tested compilation of all pkgs that depend on this change using nix-shell -p nox --run "nox-review wip"
  • Tested execution of all binary files (usually in ./result/bin/)
  • Determined the impact on package closure size (by running nix path-info -S before and after)
  • Assured whether relevant documentation is up to date (No mention of eval-config in nixpkgs or nixos manuals. Documentation for NIXOS_EXTRA_MODULE_PATH is still accurate.)
  • Fits CONTRIBUTING.md.

@danbst
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danbst commented Jan 23, 2019

So, there will be baseModules, modules and extraModules. Quite a fun list!

Maybe better add pure ? false arg? Because extraModules can alwasy be specified by appending extra modules to modules.

cc @ottidmes

@mmahut
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mmahut commented Aug 18, 2019

Are there any updates on this pull request, please?

@danbst
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danbst commented Aug 18, 2019

cc @nbp for an authoritative review of this small API change.

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stale bot commented Jun 1, 2020

Thank you for your contributions.
This has been automatically marked as stale because it has had no activity for 180 days.
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@stale stale bot added the 2.status: stale https://github.com/NixOS/nixpkgs/blob/master/.github/STALE-BOT.md label Jun 1, 2020
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Makes a lot of sense to do this. extraModules isn't much different than baseModules or modules internally

@stale stale bot removed the 2.status: stale https://github.com/NixOS/nixpkgs/blob/master/.github/STALE-BOT.md label Aug 24, 2020
@infinisil infinisil merged commit b77d8ea into NixOS:master Aug 24, 2020
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5 participants