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transmission: place torrents in a separate directory, and copy them to the main media directory on completion

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This commit is contained in:
Colin 2024-04-03 08:39:08 +00:00
parent a0550660e7
commit f5fadbe4cf
1 changed files with 55 additions and 3 deletions
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58
hosts/by-name/servo/services/transmission.nix
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@ -22,12 +22,51 @@ let
--replace-fail 'set(TR_USER_AGENT_PREFIX "''${TR_SEMVER}")' 'set(TR_USER_AGENT_PREFIX "3.00")'
'';
});
download-dir = "/var/media/torrents";
torrent-done = pkgs.writeShellApplication {
name = "torrent-done";
runtimeInputs = with pkgs; [
rsync
util-linux
];
text = ''
destructive() {
if [ -n "''${TR_DRY_RUN-}" ]; then
echo "$*"
else
"$@"
fi
}
if [[ "$TR_TORRENT_DIR" =~ ^.*freeleech.*$ ]]; then
# freeleech torrents have no place in my permanent library
echo "freeleech: nothing to do"
exit 0
fi
if ! [[ "$TR_TORRENT_DIR" =~ ^${download-dir}/.*$ ]]; then
echo "unexpected torrent dir, aborting: $TR_TORRENT_DIR"
exit 0
fi
REL_DIR="''${TR_TORRENT_DIR#${download-dir}/}"
MEDIA_DIR="/var/media/$REL_DIR"
destructive mkdir -p "$(dirname "$MEDIA_DIR")"
destructive rsync -arv "$TR_TORRENT_DIR/" "$MEDIA_DIR/"
# dedupe the whole media library.
# yeah, a bit excessive: move this to a cron job if that's problematic.
destructive hardlink /var/media --reflink=always --ignore-time --verbose
'';
};
in
{
sane.persist.sys.byStore.plaintext = [
# TODO: mode? we need this specifically for the stats tracking in .config/
{ user = "transmission"; group = config.users.users.transmission.group; path = "/var/lib/transmission"; method = "bind"; }
];
sane.persist.sys.byStore.ext = [
# TODO: move ALL /var/media to the same zfs pool; remove this
{ user = "transmission"; group = "media"; path = download-dir; method = "bind"; }
];
users.users.transmission.extraGroups = [ "media" ];
services.transmission.enable = true;
@ -72,11 +111,23 @@ in
# see: https://git.zknt.org/mirror/transmission/commit/cfce6e2e3a9b9d31a9dafedd0bdc8bf2cdb6e876?lang=bg-BG
anti-brute-force-enabled = false;
download-dir = "/var/media";
incomplete-dir = "/var/media/incomplete";
inherit download-dir;
incomplete-dir = "${download-dir}/incomplete";
# transmission regularly fails to move stuff from the incomplete dir to the main one, so disable:
# TODO: uncomment this line!
incomplete-dir-enabled = false;
# env vars available in script:
# - TR_APP_VERSION - Transmission's short version string, e.g. `4.0.0`
# - TR_TIME_LOCALTIME
# - TR_TORRENT_BYTES_DOWNLOADED - Number of bytes that were downloaded for this torrent
# - TR_TORRENT_DIR - Location of the downloaded data
# - TR_TORRENT_HASH - The torrent's info hash
# - TR_TORRENT_ID
# - TR_TORRENT_LABELS - A comma-delimited list of the torrent's labels
# - TR_TORRENT_NAME - Name of torrent (not filename)
# - TR_TORRENT_TRACKERS - A comma-delimited list of the torrent's trackers' announce URLs
script-torrent-done-enabled = true;
script-torrent-done-filename = "${torrent-done}/bin/torrent-done";
};
systemd.services.transmission.after = [ "wireguard-wg-ovpns.service" ];
@ -86,6 +137,7 @@ in
NetworkNamespacePath = "/run/netns/ovpns";
Restart = "on-failure";
RestartSec = "30s";
BindPaths = [ "/var/media" ]; #< so it can move completed torrents into the media library
};
# service to automatically backup torrents i add to transmission