svnserve systemd startup files as per https://stackoverflow.com/questions/38197727/how-to-start-svnserve-with-systemctl-systemd

svnserve configuration

# /etc/default/svnserve

# svnserve options
DAEMON_ARGS="--daemon --pid-file /run/svnserve/svnserve.pid --root /srv/svn/repos --log-file /var/log/svnserve/svnserve.log"

svnserve.service

[Unit]
Description=Subversion protocol daemon
After=syslog.target network.target

[Service]
Type=forking
RuntimeDirectory=svnserve
PIDFile=/run/svnserve/svnserve.pid
EnvironmentFile=/etc/default/svnserve
ExecStart=/usr/bin/svnserve $DAEMON_ARGS
User=svn
Group=svn
KillMode=control-group
Restart=on-failure

[Install]
WantedBy=multi-user.target

svnserve_logrotate

# /etc/logrotate.d/svnserve
# This applies to using syslog. If using systemd-journald, well...

/var/log/svnserve/*.log {
    daily
    missingok
    rotate 14
    compress
    notifempty
    create 640 svn adm
    sharedscripts
    postrotate
            if /bin/systemctl status svnserve > /dev/null ; then \
                /bin/systemctl restart svnserve > /dev/null; \
            fi;
    endscript
}