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|
{ inputs, ... }:
let
inherit (inputs) nixpkgs;
inherit (nixpkgs) lib;
in {
configurations =
lib.mapAttrs
(dir: _:
let
# sysidentity.nix is a file inside machines/name/, which is always in the form
# groups: # attrset which will be used in include and exclude
# {
# name = ""; # hostname of machine
# arch = ""; # architecture
# kind = ""; # name of subfolder inside ./modules
# include = []; # names of files inside ./modules/kind/ which to be included, by default only default.nix is
# exclude = []; # names of files inside ./modules/kind/ which to be excluded (from include)
# }
sysidentity = (import ./machines/${dir}/sysidentity.nix) (import ./module-groups.nix);
modules-dir = lib.path.append ./modules sysidentity."kind";
package-modules =
let
getmodules = attrname:
if sysidentity ? ${attrname}
then map
(v: lib.path.append modules-dir (v + (if lib.hasSuffix ".nix" v then "" else ".nix")))
sysidentity.${attrname}
else [];
includelist = getmodules "include";
excludelist = getmodules "exclude";
in
lib.subtractLists excludelist includelist;
inputs-overlays =
lib.mapAttrs
(_: nixpkgs-special:
nixpkgs-special.legacyPackages.${sysidentity.arch})
(lib.filterAttrs
(name: _:
lib.hasPrefix "nixpkgs-" name)
inputs);
custom-packages-overlays =
lib.mapAttrs
(name: _:
nixpkgs.legacyPackages.${sysidentity.arch}.callPackage ./packages/${name} { })
(lib.filterAttrs (_: type: type == "directory") (builtins.readDir ./packages));
package-overlays =
lib.mapAttrsToList
(name: _: (import ./overlays/${name}))
(builtins.readDir ./overlays);
in
lib.nixosSystem {
system = sysidentity.arch;
modules = [
./machines/${dir}/hardware-configuration.nix
./configuration.nix
modules-dir
({ ... }: {
networking.hostName = sysidentity.name;
nixpkgs.overlays = [ (_: _: inputs-overlays) (_: _: custom-packages-overlays) ] ++ package-overlays;
})
]
++ (if lib.pathIsRegularFile ./machines/${dir}/configuration.nix
then [ ./machines/${dir}/configuration.nix ]
else [])
++ package-modules;
})
(lib.filterAttrs (_: type: type == "directory") (builtins.readDir ./machines));
}
|
