nixos/flake.nix

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{
description = "NixOS Configuration";
inputs = rec {
nixpkgs-git.url = "github:/NixOS/nixpkgs";
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nixpkgs-stable.url = "github:/NixOS/nixpkgs/nixos-22.11";
nixpkgs-unstable.url = "github:/NixOS/nixpkgs/nixos-unstable";
nixpkgs.url = "github:/NixOS/nixpkgs/nixos-unstable";
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alejandra = {
url = github:kamadorueda/alejandra/3.0.0;
inputs.nixpkgs.follows = "nixpkgs";
};
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mailserver.url = "gitlab:/simple-nixos-mailserver/nixos-mailserver";
sops-nix = {
url = github:Mic92/sops-nix;
inputs.nixpkgs.follows = "nixpkgs";
};
};
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outputs = { self, nixpkgs, alejandra, mailserver, sops-nix, ... }@attrs: let
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lib = nixpkgs.lib;
fn = import ./fn.nix { inherit lib; };
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mappedFormatter = builtins.mapAttrs (arch: packages: packages.default) alejandra.packages;
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system = "x86_64-linux";
machineList = fn.lst { p = (toString ./machines); t = "directory"; b = false; };
configFiles = fn.lst { p = (toString ./config); b = true; };
pkgsFiles = fn.lst { p = (toString ./pkgs); b = true; };
serviceFiles = fn.lst { p = (toString ./services); b = true; };
nixosSystemFor = machine: {
name = machine;
value = let
machinePath = lib.concatStringsSep "/" [(toString ./.) "machines" machine];
machineFiles = lib.filter (name: lib.strings.hasSuffix ".nix" name) (fn.lst { p = machinePath; b = true; });
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in nixpkgs.lib.nixosSystem {
inherit system;
specialArgs = attrs // { fn = fn; };
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modules = [
(toString ./options/machine.nix)
sops-nix.nixosModules.sops
] ++ machineFiles
++ configFiles
++ pkgsFiles
++ serviceFiles;
};
};
in {
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formatter = mappedFormatter;
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nixosConfigurations = lib.listToAttrs (map nixosSystemFor machineList);
};
}