output of "cat /usr/local/etc/rc.d/minecraft"

#!/bin/sh
#
# $FreeBSD: head/games/minecraft-server/files/minecraft.in 476166 2018-08-01 08:30:38Z 0mp $
# PROVIDE: minecraft
# REQUIRE: LOGIN
# KEYWORD: shutdown
#
# rc.conf variables:
# minecraft_enable (Default: NO)
# minecraft_mems (Default: 1024M)
# minecraft_memx (Default: 1024M)
# minecraft_args (Default: "")
. /etc/rc.subr

name=minecraft
rcvar=minecraft_enable
desc="Dedicated server for the game Minecraft"

load_rc_config $name

minecraft_mems=${minecraft_mems:-"1024M"}
minecraft_memx=${minecraft_memx:-"1024M"}
minecraft_args=${minecraft_args:-""}

extra_commands="console status kill"
start_cmd="${name}_start"
stop_cmd="${name}_stop"
console_cmd="${name}_console"
status_cmd="${name}_status"
kill_cmd="${name}_kill"

is_running()
{
        pgrep -qu mcserver java
        return $?
}

minecraft_start()
{
        if is_running; then
                echo "${name} is already running."
        elif [ ${minecraft_mems%?} -gt ${minecraft_memx%?} ]; then
                echo "ERROR: minecraft_mems is set greater than minecraft_memx."
                echo "ERROR: Set minecraft_memx to be equal or greater than minecraft_mems in rc.conf."
        else
                if [ -n "${minecraft_mem}" ]; then
                        echo "WARNING: minecraft_mem is deprecated. Please change this to minecraft_memx."
                        minecraft_memx=${minecraft_mem}
                fi
                echo "Starting ${name}."
                cd /usr/local/minecraft-server
                su mcserver -c "/usr/local/bin/tmux new-session -s minecraft -d '/usr/local/bin/java -Xmx${minecraft_memx} -Xms${minecraft_mems} ${minecraft_args} -jar /usr/local/minecraft-server/server.jar nogui'"
        fi
}

minecraft_stop()
{
        if is_running; then
                echo "Stopping ${name}."
                su mcserver -c "/usr/local/bin/tmux send-keys -t ${name} \"stop\" ENTER"

                i=0
                while [ $i -lt 10 ]; do
                        i=$(($i + 1))
                        if is_running; then
                                sleep 1
                        else
                                echo "${name} has been stopped."
                                return
                        fi
                done
                echo "WARN: ${name} could not be stopped or is taking longer than expected."
                echo "WARN: To view the console, type 'service ${name} console'"
                echo "WARN: To kill ${name}, type 'service ${name} kill'"
        else
                echo "${name} is not running."
        fi
}

minecraft_console()
{
        if ! is_running; then
                echo "${name} is not running."
        else
                export TERM=xterm
                su mcserver -c "/usr/local/bin/tmux attach-session -t ${name}"
        fi
}

minecraft_status()
{
        if is_running; then
                echo "${name} is running."
        else
                echo "${name} is not running."
        fi
}

minecraft_kill()
{
        if ! is_running; then
                echo "${name} is not running."
        else
                pkill -KILL -u mcserver java
                echo "${name} has been killed."
        fi
}

run_rc_command "$1"