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nixpkgs/nixos/modules/services/networking/syncthing.nix

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{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.syncthing;
in
{
###### interface
options = {
services.syncthing = {
enable = mkOption {
default = false;
description = ''
Whether to enable the Syncthing, self-hosted open-source alternative
to Dropbox and BittorrentSync. Initial interface will be
available on http://127.0.0.1:8080/.
'';
};
user = mkOption {
default = "syncthing";
description = ''
Syncthing will be run under this user (user must exist,
this can be your user name).
'';
};
dataDir = mkOption {
default = "/var/lib/syncthing";
description = ''
Path where the settings and keys will exist.
'';
};
};
};
###### implementation
config = mkIf cfg.enable {
systemd.services.syncthing =
{
description = "Syncthing service";
after = [ "network.target" ];
wantedBy = [ "multi-user.target" ];
environment.STNORESTART = "yes"; # do not self-restart
environment.STNOUPGRADE = "yes";
serviceConfig = {
User = "${cfg.user}";
PermissionsStartOnly = true;
Restart = "on-failure";
ExecStart = "${pkgs.syncthing}/bin/syncthing -no-browser -home=${cfg.dataDir}";
SuccessExitStatus = "2 3 4";
RestartForceExitStatus="3 4";
};
};
environment.systemPackages = [ pkgs.syncthing ];
};
}