From 19960e5222d50bd93ee00190dc60a4a6b839a08e Mon Sep 17 00:00:00 2001
From: Ethel Morgan <eth@ethulhu.co.uk>
Date: Mon, 27 Jul 2020 20:59:04 +0100
Subject: add eth.services.youtube-dl, for podcast downloads
---
nixos/modules/module-list.nix | 1 +
nixos/modules/services/youtube-dl.nix | 113 ++++++++++++++++++++++++++++++++++
2 files changed, 114 insertions(+)
create mode 100644 nixos/modules/services/youtube-dl.nix
diff --git a/nixos/modules/module-list.nix b/nixos/modules/module-list.nix
index e7d7494..8d6656e 100644
--- a/nixos/modules/module-list.nix
+++ b/nixos/modules/module-list.nix
@@ -24,5 +24,6 @@
./services/snapclient.nix
./services/ssh.nix
./services/upmpdcli.nix
+ ./services/youtube-dl.nix
./users/eth.nix
]
diff --git a/nixos/modules/services/youtube-dl.nix b/nixos/modules/services/youtube-dl.nix
new file mode 100644
index 0000000..11fa091
--- /dev/null
+++ b/nixos/modules/services/youtube-dl.nix
@@ -0,0 +1,113 @@
+{ config, lib, pkgs, ... }:
+with lib;
+
+let
+ cfg = config.eth.services.youtube-dl;
+
+ escapeName = name: "youtube-dl-${replaceStrings [ " " "'" ] [ "-" "" ] name}";
+
+ mkService = name: opts: {
+ name = escapeName name;
+ value = {
+ description = "Download ${name}";
+ serviceConfig = {
+ User = cfg.user;
+ Group = cfg.group;
+ ExecStart = ''
+ ${pkgs.youtube-dl}/bin/youtube-dl \
+ --output ${escapeShellArg opts.directory}/${escapeShellArg opts.pattern} \
+ --write-description \
+ --write-info-json \
+ --write-sub \
+ --write-thumbnail \
+ ${escapeShellArg opts.url}
+ '';
+ NoNewPrivileges = true;
+ ProtectHome = true;
+ ProtectKernelTunables = true;
+ ProtectControlGroups = true;
+ ProtectKernelModules = true;
+ RestrictAddressFamilies = "AF_INET AF_INET6";
+ };
+ };
+ };
+
+ mkTimer = name: opts: {
+ name = escapeName name;
+ value = {
+ enable = opts.enable;
+ description = "Periodically download ${name}";
+ wants = [ "network.target" ];
+ after = [ "network.target" ];
+ wantedBy = [ "timers.target" ];
+ timerConfig = {
+ OnCalendar = "daily";
+ Unit = "${escapeName name}.service";
+ Persistent = true;
+ RandomizedDelaySec = "8h";
+ };
+ };
+ };
+
+in {
+ options.eth.services.youtube-dl = {
+ enable = mkEnableOption "Download media with youtube-dl.";
+
+ user = mkOption {
+ type = types.nullOr types.str;
+ default = null;
+ example = "eth";
+ };
+ group = mkOption {
+ type = types.nullOr types.str;
+ default = null;
+ example = "users";
+ };
+
+ download = mkOption {
+ type = types.attrsOf (types.submodule {
+ options = {
+ enable = mkEnableOption "Enable downloader.";
+
+ url = mkOption {
+ type = types.str;
+ description = "URL to download.";
+ default = "";
+ example = "http://web.server/rss.xml";
+ };
+
+ directory = mkOption {
+ type = types.path;
+ description = "Directory to download media to.";
+ default = "";
+ example = "/mnt/md0/media/podcasts";
+ };
+
+ pattern = mkOption {
+ type = types.str;
+ description = "Filename pattern";
+ default = "";
+ example = "%(title)s.%(ext)s";
+ };
+ };
+ });
+ default = {};
+ example = {
+ "Fun City" = {
+ enable = true;
+ url = "http://web.server/rss.xml";
+ directory = "/mnt/md0/media/podcasts";
+ pattern = "%(title)s.%(ext)s";
+ };
+ };
+ description = "Things to download";
+ };
+ };
+
+ config = mkIf cfg.enable {
+ systemd = {
+ services = mapAttrs' mkService cfg.download;
+ timers = mapAttrs' mkTimer cfg.download;
+ };
+ };
+}
--
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