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nixpkgs/pkgs/top-level/config.nix

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Nix

# This file defines the structure of the `config` nixpkgs option.
{ lib, config, ... }:
with lib;
let
mkMeta = args: mkOption (builtins.removeAttrs args [ "feature" ] // {
type = args.type or (types.uniq types.bool);
default = args.default or false;
description = args.description or ''
Whether to ${args.feature} while evaluating nixpkgs.
'' + ''
Changing the default will not cause any rebuilds.
'';
});
mkMassRebuild = args: mkOption (builtins.removeAttrs args [ "feature" ] // {
type = args.type or (types.uniq types.bool);
default = args.default or false;
description = (args.description or ''
Whether to ${args.feature} while building nixpkgs packages.
'') + ''
Changing the default may cause a mass rebuild.
'';
});
options = {
/* Internal stuff */
warnings = mkOption {
type = types.listOf types.str;
default = [];
internal = true;
};
/* Config options */
doCheckByDefault = mkMassRebuild {
feature = "run <literal>checkPhase</literal> by default";
};
};
in {
inherit options;
}