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forked from extern/flakelight
flakelight/builtinModules/builtinOverlay.nix
2023-09-04 16:59:59 -07:00

47 lines
1.3 KiB
Nix

# flakelight -- Framework for simplifying flake setup
# Copyright (C) 2023 Archit Gupta <archit@accelbread.com>
# SPDX-License-Identifier: MIT
{ config, src, lib, inputs, outputs, flakelight, ... }:
let
inherit (lib) isList mkOption mkOrder mapAttrs optionalAttrs;
inherit (lib.types) listOf nullOr oneOf str;
in
{
options = {
description = mkOption {
type = nullOr str;
default = null;
};
license = mkOption {
type = nullOr (oneOf [ str (listOf str) ]);
default = null;
};
};
config.withOverlays = mkOrder 10 (final: prev:
let
inherit (prev.stdenv.hostPlatform) system;
in
{
inherit src inputs outputs flakelight system;
inputs' = mapAttrs (_: mapAttrs (_: v: v.${system} or { })) inputs;
outputs' = mapAttrs (_: v: v.${system} or { }) outputs;
defaultMeta = {
platforms = config.systems;
} // optionalAttrs (config.description != null) {
inherit (config) description;
} // optionalAttrs (config.license != null) {
license =
let
getLicense = license: final.lib.licenses.${license} or
(final.lib.meta.getLicenseFromSpdxId license);
in
if isList config.license then map getLicense config.license
else getLicense config.license;
};
});
}