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|
# [nixpkgs]$ nix-build -A nixosTests.nixpkgs --show-trace
{ evalMinimalConfig, pkgs, lib, stdenv }:
let
eval = mod: evalMinimalConfig {
imports = [ ../nixpkgs.nix mod ];
};
withHost = eval {
nixpkgs.hostPlatform = "aarch64-linux";
};
withHostAndBuild = eval {
nixpkgs.hostPlatform = "aarch64-linux";
nixpkgs.buildPlatform = "aarch64-darwin";
};
withSameHostAndBuild = eval {
nixpkgs.hostPlatform = "aarch64-linux";
nixpkgs.buildPlatform = "aarch64-linux";
};
ambiguous = {
_file = "ambiguous.nix";
nixpkgs.hostPlatform = "aarch64-linux";
nixpkgs.buildPlatform = "aarch64-darwin";
nixpkgs.system = "x86_64-linux";
nixpkgs.localSystem.system = "x86_64-darwin";
nixpkgs.crossSystem.system = "i686-linux";
imports = [
{ _file = "repeat.nix";
nixpkgs.hostPlatform = "aarch64-linux";
}
];
};
getErrors = module:
let
uncheckedEval = lib.evalModules { modules = [ ../nixpkgs.nix module ]; };
in map (ass: ass.message) (lib.filter (ass: !ass.assertion) uncheckedEval.config.assertions);
readOnlyUndefined = evalMinimalConfig {
imports = [ ./read-only.nix ];
};
readOnlyBad = evalMinimalConfig {
imports = [ ./read-only.nix ];
nixpkgs.pkgs = { };
};
readOnly = evalMinimalConfig {
imports = [ ./read-only.nix ];
nixpkgs.pkgs = pkgs;
};
readOnlyBadConfig = evalMinimalConfig {
imports = [ ./read-only.nix ];
nixpkgs.pkgs = pkgs;
nixpkgs.config.allowUnfree = true; # do in pkgs instead!
};
readOnlyBadOverlays = evalMinimalConfig {
imports = [ ./read-only.nix ];
nixpkgs.pkgs = pkgs;
nixpkgs.overlays = [ (_: _: {}) ]; # do in pkgs instead!
};
readOnlyBadHostPlatform = evalMinimalConfig {
imports = [ ./read-only.nix ];
nixpkgs.pkgs = pkgs;
nixpkgs.hostPlatform = "foo-linux"; # do in pkgs instead!
};
readOnlyBadBuildPlatform = evalMinimalConfig {
imports = [ ./read-only.nix ];
nixpkgs.pkgs = pkgs;
nixpkgs.buildPlatform = "foo-linux"; # do in pkgs instead!
};
throws = x: ! (builtins.tryEval x).success;
in
lib.recurseIntoAttrs {
invokeNixpkgsSimple =
(eval {
nixpkgs.system = stdenv.hostPlatform.system;
})._module.args.pkgs.hello;
assertions =
assert withHost._module.args.pkgs.stdenv.hostPlatform.system == "aarch64-linux";
assert withHost._module.args.pkgs.stdenv.buildPlatform.system == "aarch64-linux";
assert withHostAndBuild._module.args.pkgs.stdenv.hostPlatform.system == "aarch64-linux";
assert withHostAndBuild._module.args.pkgs.stdenv.buildPlatform.system == "aarch64-darwin";
assert withSameHostAndBuild.config.nixpkgs.buildPlatform == withSameHostAndBuild.config.nixpkgs.hostPlatform;
assert withSameHostAndBuild._module.args.pkgs.stdenv.buildPlatform == withSameHostAndBuild._module.args.pkgs.stdenv.hostPlatform;
assert builtins.trace (lib.head (getErrors ambiguous))
getErrors ambiguous ==
[''
Your system configures nixpkgs with the platform parameters:
nixpkgs.hostPlatform, with values defined in:
- repeat.nix
- ambiguous.nix
nixpkgs.buildPlatform, with values defined in:
- ambiguous.nix
However, it also defines the legacy options:
nixpkgs.system, with values defined in:
- ambiguous.nix
nixpkgs.localSystem, with values defined in:
- ambiguous.nix
nixpkgs.crossSystem, with values defined in:
- ambiguous.nix
For a future proof system configuration, we recommend to remove
the legacy definitions.
''];
assert getErrors {
nixpkgs.localSystem = pkgs.stdenv.hostPlatform;
nixpkgs.hostPlatform = pkgs.stdenv.hostPlatform;
nixpkgs.pkgs = pkgs;
} == [];
# Tests for the read-only.nix module
assert readOnly._module.args.pkgs.stdenv.hostPlatform.system == pkgs.stdenv.hostPlatform.system;
assert throws readOnlyBad._module.args.pkgs.stdenv;
assert throws readOnlyUndefined._module.args.pkgs.stdenv;
assert throws readOnlyBadConfig._module.args.pkgs.stdenv;
assert throws readOnlyBadOverlays._module.args.pkgs.stdenv;
assert throws readOnlyBadHostPlatform._module.args.pkgs.stdenv;
assert throws readOnlyBadBuildPlatform._module.args.pkgs.stdenv;
# read-only.nix does not provide legacy options, for the sake of simplicity
# If you're bothered by this, upgrade your configs to use the new *Platform
# options.
assert !readOnly.options.nixpkgs?system;
assert !readOnly.options.nixpkgs?localSystem;
assert !readOnly.options.nixpkgs?crossSystem;
pkgs.emptyFile;
}
|