rtorrent / screen / systemd

.rtorrent.rc

# If we're running with the right systemd env, run our heartbeat to systemd.
execute2={/bin/systemd-notify,--ready}
execute2={/bin/bash,-c,systemd-notify MAINPID=`ps -p "$\{1:-$$\}" -o ppid= | tr -d " "`}
execute2={/bin/systemd-notify,WATCHDOG_USEC=480000000}
schedule=systemd_watchdg, 10, 60, "execute2={/bin/systemd-notify,WATCHDOG=1}"

rtorrent.service

[Unit]
Description=rTorrent
After=network.target

[Service]
Type=forking
WatchdogSec=600
Restart=on-failure
NotifyAccess=all
Environment=LANG=en_US.UTF-8
ExecStartPre=-/bin/rm %h/.rtorrent-sessions/rtorrent.lock
# IOnice just rtorrent, not anything related in that screen
# dump scrollback from screen into a file upon rtorrent exit, and remove the empty lines which ends up there, and put that into journal.
ExecStart=/usr/bin/screen -dmS rtorrent bash -c 'trap "" ABRT ; /usr/bin/ionice -c 3 /usr/bin/nice -n 19 %h/bin/rtorrent ; screen -X hardcopy -h /run/user/%U/rtorrent.$$$$ ; sed '/^$/d' /run/user/%U/rtorrent.$$$$ | logger -t rtorrent-hardcopy ; rm -f /run/user/%U/rtorrent.$$$$ ; screen -X exit'
ExecStop=/bin/kill -INT $MAINPID
ExecStop=/usr/bin/timeout 60 tail --pid=${MAINPID} -f /dev/null
WorkingDirectory=%h

[Install]
WantedBy=default.target