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Filename : 40-systemd
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# -*-Shell-script-*-
# /lib/lsb/init-functions

_use_systemctl=0
if [ -d /run/systemd/system ]; then

    prog=${0##*/}
    service="${prog%.sh}.service"

    # Don't try to run masked services. systemctl <= 230 always succeeds here,
    # but later systemctls fail on nonexisting units; be compatible with both
    state=$(systemctl -p LoadState --value show $service 2>/dev/null) || state="not-found"
    [ "$state" = "masked" ] && exit 0

    # Redirect SysV init scripts when executed by the user
    if [ $PPID -ne 1 ] && [ -z "${SYSTEMCTL_SKIP_REDIRECT:-}" ]; then
        case $(readlink -f "$0") in
            /etc/init.d/*)
                # If the state is not-found, this might be a newly installed SysV init
                # script where systemd-sysv-generator has not been run yet.
                [ "$state" != "not-found" ] || [ "$(id -u)" != 0 ] || systemctl --no-ask-password daemon-reload

                _use_systemctl=1
                # Some services can't reload through the .service file,
                # but can through the init script.
                if [ "$(systemctl -p CanReload --value show $service 2>/dev/null)" = "no" ] && [ "${1:-}" = "reload" ]; then
                    _use_systemctl=0
                fi
                ;;
        esac
    fi
fi

systemctl_redirect () {
    local s
    local rc
    local prog=${1##*/}
    local command=$2

    case "$command" in
        start)
            s="Starting $prog (via systemctl)"
            ;;
        stop)
            s="Stopping $prog (via systemctl)"
            ;;
        reload|force-reload)
            s="Reloading $prog configuration (via systemctl)"
            ;;
        try-restart)
            s="Restarting $prog if running (via systemctl)"
            ;;
        restart)
            s="Restarting $prog (via systemctl)"
            ;;
    esac

    service="${prog%.sh}.service"

    # avoid deadlocks during bootup and shutdown from units/hooks
    # which call "invoke-rc.d service reload" and similar, since
    # the synchronous wait plus systemd's normal behaviour of
    # transactionally processing all dependencies first easily
    # causes dependency loops
    if ! OUT=$(systemctl is-system-running 2>/dev/null) && [ "$OUT" != "degraded" ]; then
        sctl_args="--job-mode=ignore-dependencies"
    fi

    [ "$command" = status ] || log_daemon_msg "$s" "$service"
    /bin/systemctl --no-pager $sctl_args $command "$service"
    rc=$?
    [ "$command" = status ] || log_end_msg $rc

    return $rc
}

if [ "$_use_systemctl" = "1" ]; then
    # Some init scripts use "set -e" and "set -u", we don't want that
    # here
    set +e
    set +u

    if  [ "x$1" = xstart -o \
        "x$1" = xstop -o \
        "x$1" = xrestart -o \
        "x$1" = xreload -o \
        "x$1" = xforce-reload -o \
        "x$1" = xtry-restart -o \
        "x$1" = xstatus ] ; then

        systemctl_redirect $0 $1
        exit $?
    fi
fi