Switch from rtorrent+flood to transmission

flake.nix

@@ -124,7 +124,7 @@
                   ./shared/bookmarks/options.nix
                   ./shared/umami/options.nix
                   ./shared/concourse/options.nix
-                  ./shared/rtorrent/options.nix
+                  ./shared/torrents/options.nix
                   ./shared/oci-containers/options.nix
                   ./shared/pleroma/options.nix
                   ./shared/resolved/options.nix

hosts/nyarlathotep/configuration.nix

@@ -245,7 +245,7 @@ in
   services.caddy.virtualHosts."flood.nyarlathotep.lan:80".extraConfig = ''
     import restrict_vlan
     encode gzip
-    reverse_proxy http://localhost:${toString config.nixfiles.rtorrent.flood.port}
+    reverse_proxy http://localhost:${toString config.nixfiles.torrents.rpcPort}
   '';
 
   services.caddy.virtualHosts."finder.nyarlathotep.lan:80".extraConfig = ''
@@ -337,13 +337,14 @@ in
 
 
   ###############################################################################
-  ## rTorrent
+  ## torrents
   ###############################################################################
 
-  nixfiles.rtorrent.enable = true;
-  nixfiles.rtorrent.downloadDir = "/mnt/nas/torrents/files/";
-  nixfiles.rtorrent.watchDir = "/mnt/nas/torrents/watch/";
-  nixfiles.rtorrent.user = "barrucadu";
+  nixfiles.torrents.enable = true;
+  nixfiles.torrents.downloadDir = "/mnt/nas/torrents/files";
+  nixfiles.torrents.watchDir = "/mnt/nas/torrents/watch";
+  nixfiles.torrents.user = "barrucadu";
+  nixfiles.torrents.group = "users";
 
 
   ###############################################################################

hosts/nyarlathotep/jobs/restic-prepare--hardlink-torrent-files.py

@@ -11,7 +11,7 @@
 # Directories to link
 MEDIA_DIRS = ["/mnt/nas/anime", "/mnt/nas/movies", "/mnt/nas/tv"]
 
-# Where rtorrent downloads its files to
+# Where torrent files are downloaded to
 TORRENT_FILES_DIR = "/mnt/nas/torrents/files"
 
 # Where .torrent files are stored

shared/default.nix

@@ -36,7 +36,7 @@ in
     ./pleroma
     ./resolved
     ./restic-backups
-    ./rtorrent
+    ./torrents
     ./umami
   ];
 

shared/torrents/default.nix

@@ -0,0 +1,60 @@
+# [Transmission][] is a bittorrent client.  This module configures it along with
+# a web UI.
+#
+# This module does not include a backup script.  Torrented files must be backed
+# up independently.
+#
+# **Erase your darlings:** transparently stores session data on the persistent
+# volume.
+#
+# [Transmission]: https://transmissionbt.com/
+{ config, lib, pkgs, ... }:
+
+with lib;
+let
+  cfg = config.nixfiles.torrents;
+in
+{
+  imports = [
+    ./erase-your-darlings.nix
+    ./options.nix
+  ];
+
+  config = mkIf cfg.enable {
+    services.transmission = {
+      enable = true;
+      user = cfg.user;
+      group = cfg.group;
+      home = "${cfg.stateDir}/transmission";
+      openPeerPorts = cfg.openFirewall;
+      webHome = pkgs.flood-for-transmission;
+      settings = {
+        # paths
+        download-dir = cfg.downloadDir;
+        watch-dir = cfg.watchDir;
+        watch-dir-enabled = true;
+        incomplete-dir-enabled = false;
+
+        # optimise for private trackers (disable DHT and PEX, force encryption)
+        encryption = 2;
+        dht-enabled = false;
+        pex-enabled = false;
+
+        # peers
+        peer-port = cfg.peerPort;
+        peer-port-random-on-start = false;
+
+        # rpc
+        rpc-bind-address = "127.0.0.1";
+        rpc-port = cfg.rpcPort;
+        rpc-host-whitelist-enabled = false;
+
+        # misc
+        message-level = cfg.logLevel;
+        rename-partial-files = false;
+        trash-can-enabled = false;
+        trash-original-torrent-files = false;
+      };
+    };
+  };
+}

shared/torrents/erase-your-darlings.nix

@@ -0,0 +1,12 @@
+{ config, lib, ... }:
+
+with lib;
+let
+  cfg = config.nixfiles.torrents;
+  eyd = config.nixfiles.eraseYourDarlings;
+in
+{
+  config = mkIf (cfg.enable && eyd.enable) {
+    nixfiles.torrents.stateDir = "${toString eyd.persistDir}/var/lib/torrents";
+  };
+}