Commit 9cc26fef authored by Bruno BELANYI's avatar Bruno BELANYI
Browse files

nixos/cross-seed: add 'useGenConfigDefaults' 

This to me is the cleanest way of setting the default value and track
changes to the values from `cross-seed gen-config` with low churn.
parent 0e953540

nixos/modules/services/torrent/cross-seed.nix

+35 −1
Original line number Diff line number Diff line
@@ -14,6 +14,15 @@ let 
    types

    ;

  settingsFormat = pkgs.formats.json { };



  generatedConfig =

    pkgs.runCommand "cross-seed-gen-config" { nativeBuildInputs = [ pkgs.cross-seed ]; }

      ''

        export HOME=$(mktemp -d)

        cross-seed gen-config

        mkdir $out

        cp -r $HOME/.cross-seed/config.js $out/

      '';

in

{

  options.services.cross-seed = {
@@ -40,6 +49,22 @@ in 
      description = "Cross-seed config directory";

    };



    useGenConfigDefaults = mkOption {

      type = types.bool;

      default = false;

      description = ''

        Whether to use the option defaults from the configuration generated by

        {command}`cross-seed gen-config`.



        Those are the settings recommended by the project, and can be inspected

        from their [template file](https://github.com/cross-seed/cross-seed/blob/master/src/config.template.cjs).



        Settings set in {option}`services.cross-seed.settings` and

        {option}`services.cross-seed.settingsFile` will override the ones from

        this option.

      '';

    };



    settings = mkOption {

      default = { };

      type = types.submodule {
@@ -120,6 +145,13 @@ in 
    let

      jsonSettingsFile = settingsFormat.generate "settings.json" cfg.settings;



      genConfigSegment =

        lib.optionalString cfg.useGenConfigDefaults # js

          ''

            const gen_config_js = "${generatedConfig}/config.js";

            Object.assign(loaded_settings, require(gen_config_js));

          '';



      # Since cross-seed uses a javascript config file, we can use node's

      # ability to parse JSON directly to avoid having to do any conversion.

      # This also means we don't need to use any external programs to merge the
@@ -138,7 +170,9 @@ in 
            "use strict";

            const fs = require("fs");

            const settings_json = "${jsonSettingsFile}";

            let loaded_settings = JSON.parse(fs.readFileSync(settings_json, "utf8"));

            let loaded_settings = {};

            ${genConfigSegment}

            Object.assign(loaded_settings, JSON.parse(fs.readFileSync(settings_json, "utf8")));

            ${secretSettingsSegment}

            module.exports = loaded_settings;

          '';