git.scottworley.com Git - syncthing-autoregister/blob - modules/syncthing-autoregister.nix

   1 { config, lib, pkgs, ... }:
   2 with lib;
   3 let
   4   cfg = config.services.syncthing.autoRegister;
   5   localpkgs = import ../. { inherit pkgs; };
   6   register-script = pkgs.writeShellScript "syncthing-autoregister-script" ''
   7     ${localpkgs.syncthing-set-id}/bin/syncthing-set-id ${
   8       escapeShellArg cfg.path
   9     }
  10   '';
  11 in {
  12   options = {
  13     services.syncthing.autoRegister = {
  14       enable = mkEnableOption ''
  15         Automatically write the local syncthing device id to the nix module
  16         file <option>services.syncthing.autoRegister.path</option>.
  17       '';
  18       path = mkOption {
  19         type = types.path;
  20         description = ''
  21           Path of nix module file to write our syncthing
  22           device id into.  It will be written into
  23           services.syncthing.declarative.devices.<hostname>.id.  This file
  24           can be imported as a NixOS module.
  25
  26           We recommend using a separate file just for this purpose.  I.e.,
  27           don't point this at your main NixOS config.  Instead, import this
  28           file from your main NixOS config.  (The current nix-configuration
  29           read-modify-write implementation only supports attrsets of strings;
  30           it does not support functions, which you probably use in your
  31           main configuration.)
  32         '';
  33       };
  34     };
  35   };
  36   config = mkIf cfg.enable {
  37     systemd.services.syncthing-autoregister = {
  38       after = [ "syncthing.service" "syncthing-init.service" ];
  39       wantedBy = [ "multi-user.target" ];
  40       environment.NIX_PATH = config.environment.variables.NIX_PATH;
  41       serviceConfig = {
  42         User = config.services.syncthing.user;
  43         RemainAfterExit = true;
  44         Type = "oneshot";
  45         ExecStart = register-script;
  46       };
  47     };
  48     systemd.services.syncthing-reregister = {
  49       after = [ "syncthing-autoregister.service" ];
  50       script = ''
  51         ${pkgs.coreutils}/bin/sleep 1
  52         ${pkgs.systemd}/bin/systemctl restart syncthing-autoregister
  53       '';
  54       serviceConfig = {
  55         Type = "oneshot";
  56       };
  57     };
  58     systemd.paths.syncthing-reregister = {
  59       pathConfig.PathChanged = cfg.path;
  60       wantedBy = [ "multi-user.target" ];
  61     };
  62   };
  63 }
  64