nixos-configs/lib/flake-lib.nix
matt1432 a5fdb3e5d4
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refactor: expose custom libs through self flake
2024-11-20 16:13:12 -05:00

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Nix

inputs: rec {
# Import pkgs from a nixpkgs instance
mkPkgs = {
system,
nixpkgs,
cudaSupport ? false,
}:
import nixpkgs {
inherit system;
overlays = [inputs.self.overlays.build-failures];
config = {
inherit cudaSupport;
allowUnfree = true;
};
};
# Enable use of `nixpkgs.overlays` on both NixOS and NixOnDroid
allowModularOverrides = {
cudaSupport ? false,
system,
}: ({config, ...}: let
pkgs = mkPkgs {
inherit system cudaSupport;
inherit (inputs) nixpkgs;
};
inherit (pkgs.lib) composeManyExtensions mkForce;
in {
_module.args.pkgs = mkForce (pkgs.extend (composeManyExtensions config.nixpkgs.overlays));
});
# Default system
mkNixOS = {
extraModules ? [],
cudaSupport ? false,
}:
inputs.nixpkgs.lib.nixosSystem rec {
system = "x86_64-linux";
specialArgs = inputs;
modules =
[
(allowModularOverrides {inherit system cudaSupport;})
{home-manager.extraSpecialArgs = specialArgs;}
../common
]
++ extraModules;
};
mkNixOnDroid = extraModules: let
system = "aarch64-linux";
in
inputs.nix-on-droid.lib.nixOnDroidConfiguration rec {
extraSpecialArgs = inputs;
home-manager-path = inputs.home-manager.outPath;
pkgs = mkPkgs {
inherit system;
inherit (inputs) nixpkgs;
};
modules =
[
(allowModularOverrides {inherit system;})
({
config,
lib,
...
}: let
inherit (lib) mkForce mkOption types;
in {
# Adapt NixOnDroid to NixOS options
options.environment = {
variables.FLAKE = mkOption {
type = with types; nullOr str;
};
systemPackages = mkOption {
type = with types; listOf package;
default = [];
};
};
config.environment.packages = config.environment.systemPackages;
# This disables the assertion that fails because of nixpkgs.overlays
config._module.args.isFlake = mkForce false;
})
{home-manager = {inherit extraSpecialArgs;};}
../common/nix-on-droid.nix
]
++ extraModules;
};
}