61 lines
1.3 KiB
Nix
61 lines
1.3 KiB
Nix
{ config, lib, ... }:
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with lib;
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let
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cfg = config.my.nixpkgs;
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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 = lib.isFunction;
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merge = lib.mergeOneOption;
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};
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in
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{
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options.my.nixpkgs = {
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overlays = mkOption {
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default = [ ];
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type = types.listOf overlayType;
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example = literalExpression
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''
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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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kerberos = self.libkrb5;
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};
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})
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]
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'';
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};
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channels = mkOption {
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default = { };
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example = literalExpression ''
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{
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stable = inputs.nixpkgs-stable;
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}
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'';
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type = with types; attrsOf package;
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};
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overlaysForAllChannels = mkEnableOption "apply overlays for all channels";
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};
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config.nixpkgs = {
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overlays =
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let
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channelOverlays = _: prev:
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mapAttrs
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(_: value:
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import value {
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inherit (prev) system;
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overlays = optional cfg.overlaysForAllChannels cfg.overlays;
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}
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)
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cfg.channels;
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in
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cfg.overlays ++ [ channelOverlays ];
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config.allowUnfree = true;
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};
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}
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