buildpack/script/alivecheck

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#!/bin/sh
while true; do
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sleep 180
date="$(tail -1 $HOME/logs/latest.log | grep -oP '(?<=\[).*?(?=\])' | head -1 | date -f - +%s)"
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if [ "$(env printf '\xFE' | nc -w 5 localhost 25565 | wc -m)" -eq 0 ] ||
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[ "$(( $(date +%s) - ${date:=$(date +%s)} ))" -gt 180 ]; then
if [ "$(tail -20 $HOME/logs/latest.log | grep -c 'ERROR]: Requested chunk')" -eq 1 ]; then
rm -rf $HOME/worlds/
fi
pkill -9 java
fi
done