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(workingTest (nixpkgsFlakeOverlays [mkFlake perSystem]))

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li 2023-03-23 15:13:19 +07:00
parent 12c40901ba
commit 9c9ec49c19
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1 changed files with 18 additions and 17 deletions

35
modules/nixpkgs.nix
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@ -3,32 +3,33 @@
#
# Provides a `pkgs` argument in `perSystem`.
#
# Arguably, this shouldn't be in flake-parts, but in nixpkgs.
# Nixpkgs could define its own module that does this, which would be
# a more consistent UX, but for now this will do.
#
# The existence of this module does not mean that other flakes' logic
# will be accepted into flake-parts, because it's against the
# spirit of Flakes.
#
topLevel@{ config, options, inputs, lib, flake-parts-lib, ... }:
let
inherit (flake-parts-lib)
mkPerSystemOption
;
in
{
imports = [ inputs.nixpkgs.flakeModules.default ];
options = {
perSystem = mkPerSystemOption ({ config, system, ... }: {
_file = ./nixpkgs.nix;
imports = [{ inherit (topLevel.config) nixpkgs; }];
options = { inherit (options) nixpkgs; };
config = {
_module.args.pkgs = lib.mkDefault (config.nixpkgs.allPkgsPerSystem.${system});
};
});
};
perSystem = mkPerSystemOption ({ config, system, ... }:
let
finalOverlay = lib.composeManyExtensions
# Last element has priority, so `perSystem` overlays rule
(topLevel.config.nixpkgs.overlays ++ config.nixpkgs.overlays);
finalPkgs = config.nixpkgs.mkPkgsFromArgs
{ inherit system; overlays = [ finalOverlay ]; };
in
{
imports = [ inputs.nixpkgs.flakeModules.default ];
_file = ./nixpkgs.nix;
config = {
_module.args.pkgs = lib.mkForce finalPkgs;
};
});
};
}