{

description = "Unified hosts file with base extensions.";

outputs = { self, nixpkgs, ... }@inputs:

let

forAllSystems = nixpkgs.lib.genAttrs nixpkgs.lib.platforms.unix;

nixpkgsFor = forAllSystems (system: import nixpkgs {

inherit system;

});

in

{

nixosModule = { config, ... }:

with nixpkgs.lib;

let

cfg = config.networking.stevenBlackHosts;

alternatesList = (if cfg.blockFakenews then [ "fakenews" ] else [])

(if cfg.blockGambling then [ "gambling" ] else [])

(if cfg.blockPorn then [ "porn" ] else [])

(if cfg.blockSocial then [ "social" ] else []);

alternatesPath = "alternates/" builtins.concatStringsSep "-" alternatesList "/";

in

{

options.networking.stevenBlackHosts = {

enable = mkEnableOption "Use Steven Black's hosts file as extra hosts.";

blockFakenews = mkEnableOption "Additionally block fakenews hosts.";

blockGambling = mkEnableOption "Additionally block gambling hosts.";

blockPorn = mkEnableOption "Additionally block porn hosts.";

blockSocial = mkEnableOption "Additionally block social hosts.";

};

config = mkIf cfg.enable {

networking.extraHosts =

builtins.readFile (

"${self}/" (if alternatesList != [] then alternatesPath else "") "hosts"

);

};

};

devShells = forAllSystems (system:

let pkgs = nixpkgsFor.${system}; in

{

default = pkgs.mkShell {

buildInputs = with pkgs; [

python3

python3Packages.flake8

python3Packages.requests

];

};

});

};

}