108 lines
2.8 KiB
Nix
108 lines
2.8 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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optionalAttrs (lhs ? perlPackageOverrides) {
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perlPackageOverrides = pkgs:
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optCall lhs.perlPackageOverrides pkgs //
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optCall (attrByPath ["perlPackageOverrides"] ({}) rhs) pkgs;
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};
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configType = mkOptionType {
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name = "nixpkgs-config";
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description = "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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overlayType = mkOptionType {
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name = "nixpkgs-overlay";
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description = "nixpkgs overlay";
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check = builtins.isFunction;
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merge = lib.mergeOneOption;
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};
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_pkgs = import ../../.. config.nixpkgs;
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in
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{
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options.nixpkgs = {
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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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'';
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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.
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'';
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};
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overlays = mkOption {
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default = [];
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example = literalExample
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''
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[ (self: super: {
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openssh = super.openssh.override {
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hpnSupport = true;
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withKerberos = true;
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kerberos = self.libkrb5;
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};
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};
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) ]
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'';
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type = types.listOf overlayType;
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description = ''
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List of overlays to use with the Nix Packages collection.
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(For details, see the Nixpkgs documentation.) It allows
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you to override packages globally. This is a function that
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takes as an argument the <emphasis>original</emphasis> Nixpkgs.
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The first argument should be used for finding dependencies, and
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the second should be used for overriding recipes.
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'';
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};
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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 = {
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pkgs = _pkgs;
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pkgs_i686 = _pkgs.pkgsi686Linux;
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};
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};
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}
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