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|
{ config, lib, pkgs, ... }:
with lib;
let
isConfig = x:
builtins.isAttrs x || lib.isFunction x;
optCall = f: x:
if lib.isFunction f
then f x
else f;
mergeConfig = lhs_: rhs_:
let
lhs = optCall lhs_ { inherit pkgs; };
rhs = optCall rhs_ { inherit pkgs; };
in
lhs // rhs //
optionalAttrs (lhs ? packageOverrides) {
packageOverrides = pkgs:
optCall lhs.packageOverrides pkgs //
optCall (attrByPath ["packageOverrides"] ({}) rhs) pkgs;
} //
optionalAttrs (lhs ? perlPackageOverrides) {
perlPackageOverrides = pkgs:
optCall lhs.perlPackageOverrides pkgs //
optCall (attrByPath ["perlPackageOverrides"] ({}) rhs) pkgs;
};
configType = mkOptionType {
name = "nixpkgs-config";
description = "nixpkgs config";
check = traceValIfNot isConfig;
merge = args: fold (def: mergeConfig def.value) {};
};
overlayType = mkOptionType {
name = "nixpkgs-overlay";
description = "nixpkgs overlay";
check = lib.isFunction;
merge = lib.mergeOneOption;
};
_pkgs = import ../../.. config.nixpkgs;
in
{
options.nixpkgs = {
config = mkOption {
default = {};
example = literalExample
''
{ firefox.enableGeckoMediaPlayer = true; }
'';
type = configType;
description = ''
The configuration of the Nix Packages collection. (For
details, see the Nixpkgs documentation.) It allows you to set
package configuration options.
'';
};
overlays = mkOption {
default = [];
example = literalExample
''
[ (self: super: {
openssh = super.openssh.override {
hpnSupport = true;
kerberos = self.libkrb5;
};
};
) ]
'';
type = types.listOf overlayType;
description = ''
List of overlays to use with the Nix Packages collection.
(For details, see the Nixpkgs documentation.) It allows
you to override packages globally. This is a function that
takes as an argument the <emphasis>original</emphasis> Nixpkgs.
The first argument should be used for finding dependencies, and
the second should be used for overriding recipes.
'';
};
system = mkOption {
type = types.str;
example = "i686-linux";
description = ''
Specifies the Nix platform type for which NixOS should be built.
If unset, it defaults to the platform type of your host system.
Specifying this option is useful when doing distributed
multi-platform deployment, or when building virtual machines.
'';
};
};
config = {
_module.args = {
pkgs = _pkgs;
pkgs_i686 = _pkgs.pkgsi686Linux;
};
};
}
|