f3d94cfc23
This reverts commit cad8957eab. It
breaks NixOps, but more importantly, such major changes to the module
system really need to be reviewed.
81 lines
2.1 KiB
Nix
81 lines
2.1 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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isConfig = x:
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builtins.isAttrs x || builtins.isFunction x;
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optCall = f: x:
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if builtins.isFunction f
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then f x
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else f;
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mergeConfig = lhs_: rhs_:
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let
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lhs = optCall lhs_ { inherit pkgs; };
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rhs = optCall rhs_ { inherit pkgs; };
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in
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lhs // rhs //
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optionalAttrs (lhs ? packageOverrides) {
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packageOverrides = pkgs:
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optCall lhs.packageOverrides pkgs //
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optCall (attrByPath ["packageOverrides"] ({}) rhs) pkgs;
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};
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configType = mkOptionType {
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name = "nixpkgs config";
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check = traceValIfNot isConfig;
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merge = args: fold (def: mergeConfig def.value) {};
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};
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in
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{
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options = {
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nixpkgs.config = mkOption {
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default = {};
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example = literalExample
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''
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{ firefox.enableGeckoMediaPlayer = true;
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packageOverrides = pkgs: {
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firefox60Pkgs = pkgs.firefox60Pkgs.override {
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enableOfficialBranding = true;
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};
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};
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}
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'';
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type = configType;
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description = ''
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The configuration of the Nix Packages collection. (For
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details, see the Nixpkgs documentation.) It allows you to set
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package configuration options, and to override packages
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globally through the <varname>packageOverrides</varname>
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option. The latter is a function that takes as an argument
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the <emphasis>original</emphasis> Nixpkgs, and must evaluate
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to a set of new or overridden packages.
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'';
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};
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nixpkgs.system = mkOption {
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type = types.str;
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example = "i686-linux";
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description = ''
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Specifies the Nix platform type for which NixOS should be built.
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If unset, it defaults to the platform type of your host system.
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Specifying this option is useful when doing distributed
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multi-platform deployment, or when building virtual machines.
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'';
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};
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};
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config = {
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_module.args.pkgs = import ../../.. {
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system = config.nixpkgs.system;
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inherit (config.nixpkgs) config;
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};
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};
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}
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