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{
description = "GKleen's flakey nixos configuration";
inputs = {
nixpkgs = {
type = "github";
owner = "NixOS";
repo = "nixpkgs";
ref = "master";
};
home-manager = {
type = "github";
owner = "nix-community";
repo = "home-manager";
ref = "master";
inputs.nixpkgs.follows = "nixpkgs";
};
sops-nix = {
type = "github";
owner = "Mic92";
repo = "sops-nix";
ref = "master";
inputs.nixpkgs.follows = "nixpkgs";
};
};
outputs = { self, nixpkgs, home-manager, sops-nix }@inputs:
let
inherit (builtins) attrNames attrValues elemAt toJSON isNull pathExists;
inherit (nixpkgs) lib;
utils = import ./utils { inherit lib; };
inherit (utils) nixImport overrideModule;
inherit (lib) nixosSystem mkIf splitString filterAttrs listToAttrs mapAttrsToList nameValuePair concatMap composeManyExtensions mapAttrs mapAttrs' recursiveUpdate genAttrs unique elem optionalAttrs isDerivation concatLists;
accountUserName = accountName:
let
accountName' = splitString "@" accountName;
in elemAt accountName' 0;
accountHostName = accountName:
let
accountName' = splitString "@" accountName;
in elemAt accountName' 1;
mkNixosConfiguration = addProfiles: dir: path: hostName: nixosSystem rec {
specialArgs = {
flake = self;
flakeInputs = inputs;
path = ./.;
};
modules =
let
defaultProfiles = with self.nixosModules.systemProfiles;
[ core
];
local = dir + "/${path}";
argsModule._module.args = {
customUtils = utils;
inherit hostName;
};
accountModules = attrValues (filterAttrs accountMatchesHost self.nixosModules.accounts);
accountMatchesHost = n: _v: accountHostName n == hostName;
in attrValues (filterAttrs (n: _v: !(elem n ["systemProfiles" "users" "userProfiles" "accounts"])) self.nixosModules) ++ [ argsModule ] ++ defaultProfiles ++ addProfiles ++ [ local ] ++ accountModules;
};
mkSystemProfile = dir: path: profileName: {
imports = [ (dir + "/${path}") ];
config = {
system.profiles = [profileName];
};
};
defaultUserProfiles = userName: with self.nixosModules.userProfiles.${userName};
[ core
];
mkUserModule = dir: path: userName:
overrideModule (import (dir + "/${path}"))
(inputs: inputs // { inherit userName; })
(outputs: { _file = dir + "/${path}"; }
// outputs
// { imports = defaultUserProfiles userName ++ (outputs.imports or []); });
mkUserProfile = userName: dir: path: profileName:
let
profileModule = overrideModule (import (dir + "/${path}"))
(inputs: inputs // { inherit userName; })
(outputs: { _file = dir + "/${path}"; }
// outputs);
in {
imports = [profileModule];
config = {
users.users.${userName}.profiles = [profileName];
};
};
mkAccountModule = dir: path: accountName:
let
userName = accountUserName accountName;
in overrideModule
(import (dir + "/${path}"))
(inputs: inputs // { inherit userName; })
(outputs: { _file = dir + "/${path}"; }
// outputs
// { imports = [self.nixosModules.users.${userName} or ({...}: { imports = defaultUserProfiles userName; })] ++ (outputs.imports or []); });
systemsSelector = "(x86_64|i686)-linux";
forAllSystems = f: mapAttrs f (filterAttrs (system: _systemPkgs: !(isNull (builtins.match systemsSelector system))) nixpkgs.legacyPackages);
forAllUsers = genAttrs (unique (map accountUserName (attrNames self.nixosModules.accounts)));
activateNixosConfigurations = forAllSystems (system: _pkgs: mapAttrs' (hostName: nixosConfig: nameValuePair "${hostName}-activate" { type = "app"; program = "${nixosConfig.config.system.build.toplevel}/bin/switch-to-configuration"; }) self.nixosConfigurations);
overlayPaths = nixImport rec { dir = ./overlays; _import = (path: _name: dir + "/${path}"); };
installerProfiles = system:
let nixpkgs-path = nixpkgs.legacyPackages.${system}.path;
in mapAttrs (name: {path, output}: { profile = mkSystemProfile nixpkgs-path path "installer-${name}"; inherit output; })
{ cd-dvd = { path = "nixos/modules/installer/cd-dvd/installation-cd-minimal.nix"; output = out: out.config.system.build.isoImage; };
netboot = { path = "nixos/modules/installer/netboot/netboot-minimal.nix"; output = out: (self.legacyPackages.${system}.symlinkJoin { name = "netboot"; paths = with out.config.system.build; [ netbootRamdisk kernel netbootIpxeScript ]; preferLocalBuild = true; }); };
};
installerConfig = if pathExists ./installer.nix then "installer.nix" else (if pathExists ./installer then "installer" else null);
installers =
let mkInstallers = system: mapAttrs (mkInstaller system) (installerProfiles system);
mkInstaller = system: name: {profile, output}: let mkOutput = output; in rec { config = mkNixosConfiguration [profile { config = { nixpkgs.system = system; }; }] ./. installerConfig "installer"; output = mkOutput config; };
in forAllSystems (system: _systemPkgs: optionalAttrs (!(isNull installerConfig)) (mkInstallers system));
installerNixosConfigurations = listToAttrs (concatLists (mapAttrsToList (system: mapAttrsToList (profile: { config, ... }: nameValuePair ("installer-${system}-${profile}") config)) installers));
packages =
let installerPackages = system: optionalAttrs (!(isNull installerConfig)) (mapAttrs' (profile: value: nameValuePair "installer-${profile}" value.output) installers.${system});
in forAllSystems (system: systemPkgs: self.overlay (self.legacyPackages.${system}) systemPkgs // installerPackages system);
in
{
nixosModules =
let modulesAttrs = nixImport { dir = ./modules; };
systemProfiles = nixImport rec { dir = ./system-profiles; _import = mkSystemProfile dir; };
users = nixImport rec { dir = ./users; _import = mkUserModule dir; };
userProfiles = forAllUsers (userName: nixImport rec { dir = ./user-profiles; _import = mkUserProfile userName dir; });
accounts = recursiveUpdate rootAccounts (nixImport rec { dir = ./accounts; _import = mkAccountModule dir; });
rootAccounts = mapAttrs' (hostName: _value: nameValuePair "root@${hostName}" ({...}: { imports = [ self.nixosModules.users.root or ({...}: { imports = defaultUserProfiles "root"; }) ]; })) self.nixosConfigurations;
in modulesAttrs // { inherit systemProfiles users userProfiles accounts; };
nixosConfigurations = installerNixosConfigurations // nixImport rec { dir = ./hosts; _import = mkNixosConfiguration [] dir; };
homeManagerModules = nixImport rec { dir = ./home-modules; };
overlay = final: prev: composeManyExtensions (attrValues self.overlays) final prev;
overlays = mapAttrs (_name: path: import path) overlayPaths;
overlays-path = forAllSystems (system: _: self.legacyPackages.${system}.writeText "overlays.nix" ''
map import (builtins.attrValues (builtins.fromJSON (builtins.readFile ${self.legacyPackages.${system}.writeText "overlays.json" (toJSON overlayPaths)})))
'');
packages = mapAttrs (_name: filterAttrs (_name: isDerivation)) packages;
packages' = mapAttrs (_name: filterAttrs (_name: value: !(isDerivation value))) packages;
legacyPackages = forAllSystems (system: systemPkgs: recursiveUpdate systemPkgs packages.${system});
apps = activateNixosConfigurations;
devShell = forAllSystems (system: systemPkgs: import ./shell.nix { pkgs = self.legacyPackages.${system}; });
defaultTemplate = {
path = ./.;
description = "GKleen's flakey nixos configuration";
};
};
}
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