dotfiles/flake.nix

181 lines
6.2 KiB
Nix

{
nixConfig = {
accept-flake-config = true;
experimental-features = "nix-command flakes";
# for darwin's browser
allowUnsupportedSystem = true;
};
description = "My personal configuration in Nix (and some native configurations)";
inputs = {
nixpkgs.url = "nixpkgs/nixos-unstable";
# continously merged & rebased lightweight .lib. Basically a huge extension to c_.
nixlib.url = "github:nix-community/nixpkgs.lib";
agenix = {
url = "github:ryantm/agenix";
inputs.nixpkgs.follows = "nixpkgs";
};
home-manager = {
url = "github:nix-community/home-manager";
inputs.nixpkgs.follows = "nixpkgs";
};
flake-utils.url = "github:numtide/flake-utils";
nixgl.url = "path:out-of-tree/nixGL";
rust-overlay.url = "github:oxalica/rust-overlay";
# Allows default.nix to call onto flake.nix. Useful for nix eval and automations
flake-compat = {
url = "path:out-of-tree/flake-compat";
flake = false;
};
kpcli-py = {
url = "github:rebkwok/kpcli";
flake = false;
};
neovim-nightly-overlay = {
url = "github:nix-community/neovim-nightly-overlay";
inputs.nixpkgs.url = "github:nixos/nixpkgs?rev=fad51abd42ca17a60fc1d4cb9382e2d79ae31836";
};
nix-index-database = {
url = "github:mic92/nix-index-database";
inputs.nixpkgs.follows = "nixpkgs";
};
nickel.url = "github:tweag/nickel";
};
outputs =
{ nixpkgs
, agenix
, home-manager
, flake-utils
, nixgl
, rust-overlay
, flake-compat
, neovim-nightly-overlay
, nix-index-database
, nixlib
, nickel
, ...
}@_inputs:
let
# config_fn:: system -> config
# this function should take simple exports of homeConfigurations.${profile},
# nixosConfigurations.${profile}, devShells.${profile}, packages.${profile}
# and correctly produce
cross_platform = config_fn: let
# nixosConfigurations.${profile} -> nixosConfigurations.${system}.${profile}
# pass in: path.to.exports.nixosConfigurations
# get out: nixosConfigurations.${system} = {...}
strat_sandwich = field_name: config_field: system: {
"${field_name}"."${system}" = config_field;
};
# homeConfigurations.${profile} -> packages.${system}.homeConfigurations.${profile}
# pass in: path.to.exports.homeConfigurations
# get: packages.${system}.homeConfigurations
strat_wrap_packages = field_name: config_field: system: {
packages."${system}"."${field_name}" = config_field;
};
strat_noop = field_name: config_field: system: {"${field_name}" = config_field;};
strategyMap = {
nixosConfigurations = strat_sandwich;
templates = strat_noop;
devShells = strat_sandwich;
devShell = strat_sandwich;
formatter = strat_sandwich;
homeConfigurations = strat_wrap_packages;
lib = strat_noop;
proj_root = strat_noop;
unit_tests = strat_noop;
secrets = strat_noop;
debug = strat_noop;
};
# takes in {homeConfigurations = ...; nixosConfigurations = ...}
# -> {packages.$system.homeConfigurations}
mapConfig = config: system: (builtins.foldl'
(acc: confName: (strategyMap."${confName}" confName config."${confName}" system))
{} (builtins.attrNames config));
in builtins.foldl' nixlib.lib.recursiveUpdate {} (
builtins.map (system: (mapConfig (config_fn system) system)) flake-utils.lib.defaultSystems
);
in cross_platform (system:
let
# Context/global stuffs to be passed down
# NOTE: this will only read files that are within git tree
# all secrets should go into secrets.nix and secrets/*.age
proj_root =
let
path = builtins.toString ./.;
in
{
inherit path;
configs.path = "${path}/native_configs";
scripts.path = "${path}/scripts";
secrets.path = "${path}/secrets";
testdata.path = "${path}/tests";
modules.path = "${path}/modules";
hosts.path = "${path}/hosts";
users.path = "${path}/users";
};
overlays = import ./overlays.nix (_inputs // {inherit system;});
pkgs = import nixpkgs {
inherit system overlays;
config = {
allowUnfree = true;
};
};
# now, this lib is extremely powerful as it also engulfs nixpkgs.lib
# lib = nixpkgs.lib // pkgs.lib;
lib = (builtins.foldl' (lhs: rhs: (nixpkgs.lib.recursiveUpdate lhs rhs)) { } [
nixpkgs.lib
pkgs.lib
(import ./lib {
inherit proj_root pkgs overlays system;
inherit (pkgs) lib;
})
]);
inputs_w_lib = (pkgs.lib.recursiveUpdate _inputs {
inherit system proj_root pkgs lib;
});
modules = (import ./modules inputs_w_lib);
hosts = (import ./hosts inputs_w_lib);
users = (import ./users inputs_w_lib);
# {nixpkgs, agenix, home-manager, flake-utils, nixgl, rust-overlay, flake-compat
# ,pkgs, lib (extended), proj_root}
final_inputs = inputs_w_lib;
# Tests: unit + integration
unit_tests = (import ./lib/test.nix final_inputs) //
{
test_example = {
expr = "names must start with 'test'";
expected = "or won't show up";
};
not_show = {
expr = "this will be ignored by lib.runTests";
expected = "for sure";
};
};
secrets = import ./secrets final_inputs;
in
{
inherit (hosts) nixosConfigurations;
inherit (users) homeConfigurations;
inherit lib proj_root;
devShells = import ./dev-shell.nix final_inputs;
templates = import ./templates final_inputs;
secrets = {
pubKeys = {
hosts = hosts.pubKeys;
users = users.pubKeys;
};
};
# unit_tests = lib.runTests unit_tests;
debug = {
inherit final_inputs hosts users modules lib inputs_w_lib unit_tests pkgs nixpkgs nixlib;
};
formatter."${system}" = pkgs.nixpkgs-fmt;
});
}