oizys/lib/default.nix

63 lines
1.8 KiB
Nix

{
inputs,
nixpkgs,
...
}: let
inherit (builtins) concatLists attrValues mapAttrs elemAt match readDir filter listToAttrs baseNameOf readFile;
inherit (nixpkgs.lib) hasSuffix nixosSystem genAttrs;
inherit (nixpkgs.lib.filesystem) listFilesRecursive;
# https://xeiaso.net/blog/nix-flakes-1-2022-02-21/
supportedSystems = ["x86_64-linux" "x86_64-darwin" "aarch64-linux" "aarch64-darwin"];
forAllSystems = genAttrs supportedSystems;
nixpkgsFor = forAllSystems (system: import nixpkgs {inherit system;});
in rec {
shToPkg = path:
forAllSystems (
system: let
name = baseNameOf path;
pkgs = nixpkgsFor.${system};
in {
${name} = pkgs.writeScriptBin name (readFile path);
}
);
isNixFile = path: hasSuffix ".nix" path;
mkSystem = hostname:
nixosSystem {
system = "x86_64-linux";
modules =
[../modules/roles/common.nix]
++ filter isNixFile (listFilesRecursive (../. + "/hosts/${hostname}"));
specialArgs = {inherit inputs;};
};
mapHosts = dir:
mapAttrs
(name: _: mkSystem name)
(readDir dir);
findModules = modulesPath: listToAttrs (findModulesList modulesPath);
# https://github.com/balsoft/nixos-config/blob/73cc2c3a8bb62a9c3980a16ae70b2e97af6e1abd/flake.nix#L109-L120
findModulesList = dir:
concatLists (attrValues (mapAttrs
(name: type:
if type == "regular"
then [
{
name = elemAt (match "(.*)\\.nix" name) 0;
value = dir + "/${name}";
}
]
else if
(readDir (dir + "/${name}"))
? "default.nix"
then [
{
inherit name;
value = dir + "/${name}";
}
]
else findModulesList (dir + "/${name}")) (readDir dir)));
}