49 lines
1.4 KiB
Bash
49 lines
1.4 KiB
Bash
#! /bin/sh
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#
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# recover.sh
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# Recover a Minecraft world save from our S3 bucket
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# Copyright (C) 2020 Vintage Salt <rehashedsalt@cock.li>
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#
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# Distributed under terms of the MIT license.
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#
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set -e
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# Get to our magic dir
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export MINECRAFT_DIR="/var/minecraft/{{ mcname }}"
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cd "$MINECRAFT_DIR" || exit 50
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# If the world directory exists, we need to ensure that we don't clobber it
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if [ -d "world" ]; then
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echo "Backing up current world"
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tar --force-local czf "recover-world-$(date -Iseconds).tar.gz" world --remove-files
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fi
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# If it STILL exists, then we have a problem
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if [ -d "world" ]; then
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echo "World was found to exist after tarring; bailing"
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exit 51
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fi
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# Get our latest good backup
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backup="$(aws s3 ls "s3://{{ aws_backup_bucket }}/{{ mcname }}/" | tail -n 1 | awk '{print $4}')"
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echo "Restoring backup: $backup"
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aws s3 cp "s3://{{ aws_backup_bucket }}/{{ mcname }}/$backup" world.tgz
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# Decompress it
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tar xzf world.tgz
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# Find the world
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worlddir="$(find . -type d -name "world" | head -n 1)"
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# Move it in place
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mv "$worlddir" .
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# Verify our work
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if [ -f "world/level.dat" ]; then
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echo "Recovered from backup: $backup"
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else
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echo "Failed to recover from backup: $backup"
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fi
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# Remove the var dir, if it exists, because that's what it ends up being named
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if [ -d "var" ]; then
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# Never use relative paths with rm in a script
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# That's heresy
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rm -rf "/var/minecraft/{{ mcname }}/var"
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fi
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