Plymouth with scrolling boot messages

start_daemon () {
    local force nice pidfile exec args
    force=""
    nice=0
    pidfile=/dev/null

    OPTIND=1
    while getopts fn:p: opt ; do
        case "$opt" in
            f)  force="force";;
            n)  nice="$OPTARG";;
            p)  pidfile="$OPTARG";;
        esac
    done
    
    shift $(($OPTIND - 1))
    if [ "$1" = '--' ]; then
        shift
    fi

    exec="$1"; shift

    args="--start --nicelevel $nice --quiet --oknodo"
    if [ "$force" ]; then
        /sbin/start-stop-daemon $args \
        --chdir "$PWD" --startas $exec --pidfile /dev/null -- "$@"
    elif [ $pidfile ]; then
        /sbin/start-stop-daemon $args \
        --chdir "$PWD" --exec $exec --oknodo --pidfile "$pidfile" -- "$@"
    else
        /sbin/start-stop-daemon $args --chdir "$PWD" --exec $exec -- "$@"
    fi
}

pidofproc () {
    local pidfile line status specified pid
    pidfile=
    specified=
    
    OPTIND=1
    while getopts p: opt ; do
        case "$opt" in
            p)  pidfile="$OPTARG"
                specified="specified"
        ;;
        esac
    done
    shift $(($OPTIND - 1))

    base=${1##*/}
    if [ ! "$specified" ]; then
        pidfile="/var/run/$base.pid"
    fi

    if [ -n "${pidfile:-}" ] && [ -r "$pidfile" ]; then
        read pid < "$pidfile"
        if [ -n "${pid:-}" ]; then
            if $(kill -0 "${pid:-}" 2> /dev/null); then
                echo "$pid"
                if [ -x /bin/plymouth ]; then
                   /bin/plymouth update --status="$@"
                fi
                return 0
            elif ps "${pid:-}" >/dev/null 2>&1; then
                echo "$pid"
                if [ -x /bin/plymouth ]; then
                   /bin/plymouth update --status="$@"
                fi
                return 0 # program is running, but not owned by this user
            else
                return 1 # program is dead and /var/run pid file exists
            fi
        fi
    fi
    if [ -x /bin/pidof ] && [ ! "$specified" ]; then
        status="0"
        /bin/pidof -o %PPID -x $1 || status="$?"
        if [ "$status" = 1 ]; then
            return 3 # program is not running
        fi
        return 0
    fi
    if [ "$specified" ]; then
        return 3 # almost certain it's not running
    fi
    return 4 # Unable to determine status
}

# start-stop-daemon uses the same algorithm as "pidofproc" above.
killproc () {
    local pidfile sig status base name_param is_term_sig
    pidfile=
    name_param=
    is_term_sig=

    OPTIND=1
    while getopts p: opt ; do
        case "$opt" in
            p)  pidfile="$OPTARG";;
        esac
    done
    shift $(($OPTIND - 1))

    base=${1##*/}
    if [ ! $pidfile ]; then
        name_param="--name $base --pidfile /var/run/$base.pid"
    else
        name_param="--pidfile $pidfile"
    fi

    sig=$(echo ${2:-} | sed -e 's/^-\(.*\)/\1/')
    if [ -x /bin/plymouth ]; then
                  /bin/plymouth update --status="$@"
                fi
    sig=$(echo $sig | sed -e 's/^SIG\(.*\)/\1/')
    if [ -x /bin/plymouth ]; then
                   /bin/plymouth update --status="$@"
                fi
    if [ -z "$sig" ] || [ "$sig" = 15 ] || [ "$sig" = TERM ]; then
        is_term_sig="terminate_signal"
    fi
    status=0
    if [ ! "$is_term_sig" ]; then
        if [ -n "$sig" ]; then
            /sbin/start-stop-daemon --stop --signal "$sig" \
        --quiet $name_param || status="$?"
        else
            /sbin/start-stop-daemon --stop \
        --quiet $name_param || status="$?"
        fi
    else
        /sbin/start-stop-daemon --stop --quiet \
        --oknodo $name_param || status="$?"
    fi
    if [ "$status" = 1 ]; then
        if [ -n "$sig" ]; then
            return 0
        fi
        return 3 # program is not running
    fi

    if [ "$status" = 0 ] && [ "$is_term_sig" ] && [ "$pidfile" ]; then
        pidofproc -p "$pidfile" "$1" >/dev/null || rm -f "$pidfile"
    fi
    return 0
}

# Return LSB status
status_of_proc () {
    local pidfile daemon name status

    pidfile=
    OPTIND=1
    while getopts p: opt ; do
        case "$opt" in
            p)  pidfile="$OPTARG";;
        esac
    done
    shift $(($OPTIND - 1))

    if [ -n "$pidfile" ]; then
        pidfile="-p $pidfile"
    fi
    daemon="$1"
    name="$2"

    status="0"
    pidofproc $pidfile $daemon >/dev/null || status="$?"
    if [ "$status" = 0 ]; then
        log_success_msg "$name is running"
        return 0
    elif [ "$status" = 4 ]; then
        log_failure_msg "could not access PID file for $name"
        return $status
    else
        log_failure_msg "$name is not running"
        return $status
    fi
}

log_use_fancy_output () {
    TPUT=/usr/bin/tput
    EXPR=/usr/bin/expr
    if  [ -t 1 ] &&
    [ "x${TERM:-}" != "x" ] &&
    [ "x${TERM:-}" != "xdumb" ] &&
    [ -x $TPUT ] && [ -x $EXPR ] &&
    $TPUT hpa 60 >/dev/null 2>&1 &&
    $TPUT setaf 1 >/dev/null 2>&1
    then
        [ -z $FANCYTTY ] && FANCYTTY=1 || true
    else
        FANCYTTY=0
    fi
    case "$FANCYTTY" in
        1|Y|yes|true)   true;;
        *)              false;;
    esac
}

log_success_msg () {
    if [ -n "${1:-}" ]; then
        log_begin_msg $@
    fi
    log_end_msg 0
}

log_failure_msg () {
    if [ -n "${1:-}" ]; then
        log_begin_msg $@ "..."
    fi
    log_end_msg 1 || true
}

log_warning_msg () {
    if [ -n "${1:-}" ]; then
        log_begin_msg $@ "..."
    fi
    log_end_msg 255 || true
}

#
# NON-LSB HELPER FUNCTIONS
#
# int get_lsb_header_val (char *scriptpathname, char *key)
get_lsb_header_val () {
        if [ ! -f "$1" ] || [ -z "${2:-}" ]; then
                return 1
        fi
        LSB_S="### BEGIN INIT INFO"
        LSB_E="### END INIT INFO"
        sed -n "/$LSB_S/,/$LSB_E/ s/# $2: \(.*\)/\1/p" $1
}

# int log_begin_message (char *message)
log_begin_msg () {
    if [ -z "${1:-}" ]; then
        return 1
    fi
    /bin/echo -n "$@"
    if [ -x /bin/plymouth ]; then
                   /bin/plymouth update --status="$@"
                fi
}

# Sample usage:
# log_daemon_msg "Starting GNOME Login Manager" "gdm"
#
# On Debian, would output "Starting GNOME Login Manager: gdm"
# On Ubuntu, would output " * Starting GNOME Login Manager..."
#
# If the second argument is omitted, logging suitable for use with
# log_progress_msg() is used:
#
# log_daemon_msg "Starting remote filesystem services"
#
# On Debian, would output "Starting remote filesystem services:"
# On Ubuntu, would output " * Starting remote filesystem services..."

log_daemon_msg () {
    if [ -z "${1:-}" ]; then
        return 1
    fi
    log_daemon_msg_pre "$@"

    if [ -z "${2:-}" ]; then
        /bin/echo -n "$1:"
        if [ -x /bin/plymouth ]; then
                   /bin/plymouth update --status="$@"
                fi
        return
    fi
    
    /bin/echo -n "$1: $2"
    if [ -x /bin/plymouth ]; then
                   /bin/plymouth update --status="$@"
                fi
    log_daemon_msg_post "$@"
}

# #319739
#
# Per policy docs:
#
#     log_daemon_msg "Starting remote file system services"
#     log_progress_msg "nfsd"; start-stop-daemon --start --quiet nfsd
#     log_progress_msg "mountd"; start-stop-daemon --start --quiet mountd
#     log_progress_msg "ugidd"; start-stop-daemon --start --quiet ugidd
#     log_end_msg 0
#
# You could also do something fancy with log_end_msg here based on the
# return values of start-stop-daemon; this is left as an exercise for
# the reader...
#
# On Ubuntu, one would expect log_progress_msg to be a no-op.
log_progress_msg () {
    if [ -z "${1:-}" ]; then
        return 1
    fi
    /bin/echo -n " $@"
    if [ -x /bin/plymouth ]; then
                   /bin/plymouth update --status="$@"
                fi
}


# int log_end_message (int exitstatus)
log_end_msg () {
    # If no arguments were passed, return
    if [ -z "${1:-}" ]; then
        return 1
    fi

    local retval
    retval=$1

    log_end_msg_pre "$@"

    # Only do the fancy stuff if we have an appropriate terminal
    # and if /usr is already mounted
    if log_use_fancy_output; then
        RED=$( $TPUT setaf 1)
        YELLOW=$( $TPUT setaf 3)
        NORMAL=$( $TPUT op)
    else
        RED=''
        YELLOW=''
        NORMAL=''
    fi

    if [ $1 -eq 0 ]; then
        echo "."
        if [ -x /bin/plymouth ]; then
                   /bin/plymouth update --status="$@"
                fi
    elif [ $1 -eq 255 ]; then
        /bin/echo -e " ${YELLOW}(warning).${NORMAL}"if [ -x /bin/plymouth ]; then
                   /bin/plymouth update --status="$@"
                fi
    else
        /bin/echo -e " ${RED}failed!${NORMAL}"if [ -x /bin/plymouth ]; then
                   /bin/plymouth update --status="$@"
                fi
    fi
    log_end_msg_post "$@"
    return $retval
}

log_action_msg () {
    echo "$@."
    if [ -x /bin/plymouth ]; then
                   /bin/plymouth update --status="$@"
                fi
}

log_action_begin_msg () {
    /bin/echo -n "$@..."
    if [ -x /bin/plymouth ]; then
                   /bin/plymouth update --status="$@"
                fi
}

log_action_cont_msg () {
    /bin/echo -n "$@..."
    if [ -x /bin/plymouth ]; then
                   /bin/plymouth update --status="$@"
                fi
}

log_action_end_msg () {
    local end
    log_action_end_msg_pre "$@"
    if [ -z "${2:-}" ]; then
        end="."
    else
        end=" ($2)."
    fi

    if [ $1 -eq 0 ]; then
        echo "done${end}"
        if [ -x /bin/plymouth ]; then
                   /bin/plymouth update --status="$@"
                fi
    else
        if log_use_fancy_output; then
            RED=$( $TPUT setaf 1)
            NORMAL=$( $TPUT op)
            /bin/echo -e "${RED}failed${end}${NORMAL}"
            if [ -x /bin/plymouth ]; then
                   /bin/plymouth update --status="$@"
                fi
        else
            echo "failed${end}"
            if [ -x /bin/plymouth ]; then
                   /bin/plymouth update --status="$@"
                fi
        fi
    fi
    log_action_end_msg_post "$@"
}

# Hooks for /etc/lsb-base-logging.sh
log_daemon_msg_pre () { :; }
log_daemon_msg_post () { :; }
log_end_msg_pre () { :; }
log_end_msg_post () { :; }
log_action_end_msg_pre () { :; }
log_action_end_msg_post () { :; }

FANCYTTY=
[ -e /etc/lsb-base-logging.sh ] && . /etc/lsb-base-logging.sh || true