stockholm/default.nix
2016-02-14 16:20:10 +01:00

87 lines
2.5 KiB
Nix

{ configuration ? import (nixpkgs-path + "/nixos/lib/from-env.nix") "NIXOS_CONFIG" <nixos-config>
, system ? builtins.currentSystem
, current-host-name ?
let v = builtins.getEnv "HOSTNAME"; in
if v != "" then v else builtins.readFile /proc/sys/kernel/hostname
, current-user-name ?
let v = builtins.getEnv "LOGNAME"; in
if v != "" then v else abort "undefined variable: LOGNAME"
, nixpkgs-path ?
if (builtins.tryEval <nixpkgs/krebs>).success
then <upstream-nixpkgs>
else <nixpkgs>
, StrictHostKeyChecking ? "yes"
}@args:
let stockholm = {
inherit krebs;
inherit users;
inherit lib;
inherit config options pkgs;
system = config.system.build.toplevel;
};
krebs = import ./krebs (args // { inherit lib stockholm; });
lib = let
nlib = import (slib.npath "lib");
klib = import (slib.kpath "4lib") { lib = nlib; };
slib = rec {
nspath = ns: p: ./. + "/${ns}/${p}";
npath = p: nixpkgs-path + "/${p}";
kpath = nspath "krebs";
upath = nspath current-user-name;
};
ulib = let p = slib.upath "4lib"; in
nlib.optionalAttrs (klib.dir.has-default-nix p)
(import p { lib = nlib // klib; });
in nlib // klib // slib // ulib // builtins;
inherit (eval configuration) config options pkgs;
base-module = { config, ... }: {
imports = builtins.filter lib.dir.has-default-nix (lib.concatLists [
(map (f: f "2configs") [ lib.upath ])
(map (f: f "3modules") [ lib.kpath lib.upath ])
(map (f: f "5pkgs") [ lib.kpath lib.upath ])
]);
krebs.lib = lib;
krebs.current.enable = true;
krebs.current.host = config.krebs.hosts.${current-host-name};
krebs.current.user = config.krebs.users.${current-user-name};
};
eval = config: import (lib.npath "nixos/lib/eval-config.nix") {
inherit system;
specialArgs = {
inherit lib;
};
modules = [
base-module
config
];
};
# TODO move user namespaces' to users/, so no exception for krebs/ is needed
users =
lib.mapAttrs
(name: _: eval-all-systems (lib.nspath name "1systems"))
(lib.filterAttrs
(n: t: !lib.hasPrefix "." n && t == "directory" && n != "krebs")
(builtins.readDir ./.));
eval-all-systems = path:
lib.mapAttrs'
(n: _: (lib.nameValuePair (lib.removeSuffix ".nix" n)
(eval-system (path + "/${n}"))))
(builtins.readDir path);
eval-system = path: rec {
inherit (eval path) config options;
system = config.system.build.toplevel;
};
in stockholm