minecraft backup script

minecraft-backup.sh

#!/bin/bash

# Backup script for minecraft server. Uses duplicity(1).


. /etc/minecraft/config
. /etc/minecraft/backup.cfg

BACKUP_URL="file://${BACKUP_TARGET}"
CONSOLE="${RUN}/console.in"
PID="${RUN}/server.pid"

DUPLICITY=/usr/bin/duplicity
DUP_VERBOSITY="warning"
DUP_OPTIONS="-v $DUP_VERBOSITY --no-print-statistics --no-encryption --full-if-older-than ${BACKUP_FREQ_FULL}"
SAVE_SLEEP=5

###

check_pid_file() {
    ps -p `cat $1` > /dev/null 2>&1
    echo $?
}

if [ -f "$PID" ]; then
    if [ `check_pid_file $PID` -ne 0 ]; then
        echo "save-all" > $CONSOLE
        sleep "$SAVE_SLEEP"
    fi
fi

if [ "A$1" == "Atrim" ]; then
    TRIM="--force remove-all-but-n-full ${BACKUP_KEEP_FULL}"
    duplicity $DUP_OPTIONS $TRIM "$BACKUP_URL"
else
    duplicity $DUP_OPTIONS "$WORLDS" "$BACKUP_URL"
fi