nixpkgs/nixos/tests/replace-dependencies/default.nix

import ../make-test-python.nix (
  { pkgs, ... }:
  {
    name = "replace-dependencies";
    meta.maintainers = with pkgs.lib.maintainers; [ alois31 ];

    nodes.machine =
      { ... }:
      {
        nix.settings.experimental-features = [ "ca-derivations" ];
        system.extraDependencies = [ pkgs.stdenvNoCC ];
      };

    testScript = ''
      start_all()
      machine.succeed("nix-build --option substitute false ${pkgs.path}/nixos/tests/replace-dependencies/guest.nix")
    '';
  }
)
replaceDependencies: add tests The tests cannot be directly built by Hydra, because replaceDependencies relies on IFD. Instead, they are put inside a NixOS test where they are built on the guest. 2023-12-16 18:02:17 +00:00			`import ../make-test-python.nix (`
			`{ pkgs, ... }:`
			`{`
			`name = "replace-dependencies";`
			`meta.maintainers = with pkgs.lib.maintainers; [ alois31 ];`

			`nodes.machine =`
			`{ ... }:`
			`{`
replaceDependencies: add support for ca-derivations Unlike regular input-addressed or fixed-output derivations, floating and deferred derivations do not have their store path available at evaluation time, so their outPath is a placeholder. The following changes are needed for replaceDependencies to continue working: * Detect the placeholder and retrieve the store path using another IFD hack when collecting the rewrite plan. * Try to obtain the derivation name needed for replaceDirectDependencies from the derivation arguments if a placeholder is detected. * Move the length mismatch detection to build time, since the placeholder has a fixed length which is unrelated to the store path. 2024-01-27 10:59:26 +00:00			`nix.settings.experimental-features = [ "ca-derivations" ];`
replaceDependencies: add tests The tests cannot be directly built by Hydra, because replaceDependencies relies on IFD. Instead, they are put inside a NixOS test where they are built on the guest. 2023-12-16 18:02:17 +00:00			`system.extraDependencies = [ pkgs.stdenvNoCC ];`
			`};`

			`testScript = ''`
			`start_all()`
			`machine.succeed("nix-build --option substitute false ${pkgs.path}/nixos/tests/replace-dependencies/guest.nix")`
			`'';`
			`}`
			`)`