nixos/rtorrent: add rtorrent tmux service (user and system) #30850
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Also improve variable naming/usage; comments
rtorrent dataDir now interpreted as rtorrent user $HOME, and created via useradd to avoid ExecPreStart being run as root.
rtorrent dataDir now interpreted as rtorrent user $HOME, and created via useradd to avoid ExecPreStart being run as root.
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This PR should not contain commits from #30144 . |
| default = false; | ||
| description = '' | ||
| Whether to install a user service for rtorrent (via tmux). | ||
| The service must be manually started for each user with |
| User = cfg.user; | ||
| Group = cfg.group; | ||
| ExecStart = "${pkgs.tmux}/bin/tmux new-session -c ${cfg.dataDir} -s rtorrent -n rtorrent -d rtorrent -n -o import=${cfg.configFile}"; | ||
| ExecStop = "${pkgs.bash}/bin/bash -c \"tmux send-keys -t rtorrent C-q && while pidof rtorrent > /dev/null; do sleep 0.5; done\""; |
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This looks very hacky. Not sure if there is a better way to solve this together with tmux but it doesn't feel right to me.
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Yeah it's a little reminiscent of creaky init scripts.
On the plus side, it's at least a fairly well tested hack; lots of people have been using it on Arch for a few years:
https://wiki.archlinux.org/index.php/RTorrent#Systemd_services_using_tmux_or_screen
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Looks like the rtorrent devs have merged a patch to run rtorrent as a headless daemon, accessible only via XML-RPC not CLI: This would be a better candidate, allowing systemd to manage the service directly and saving all this jiggery-pokery of operating through tmux. I'll withdraw the PR and wait for the release of 0.9.7. |
Motivation for this change
rtorrent systemd service units, started within a tmux session. Both a system service and a user service are provided, somewhat following the install/enable config syntax of the emacsd expression. Particularly handy to bring up rtorrent at boot time.
Things done
build-use-sandboxinnix.confon non-NixOS)nix-shell -p nox --run "nox-review wip"./result/bin/)