A simple Python script to provide lightweight backup operations for Minecraft worlds and playerdata.

backupMinecraft.py

#!/usr/bin/env python3
from datetime import datetime as DateTime
from pathlib import Path
from shutil import copy2, rmtree


MINECRAFT_ROOT = Path('/opt/minecraft')


def take_backup(target, storage, files):
	target = Path(target)
	storage = Path(storage)

	if not storage.exists():
		storage.mkdir(parents=True)

	for file in target.glob(files):
		copy2(file, storage / file.name)


def cleanup_backups(storage, day_limit=2):
	storage = Path(storage)

	for folder in storage.iterdir():
		if DateTime.now().timestamp() - folder.stat().st_mtime > 86400 * day_limit:
			rmtree(folder)


def backup_regions(timestamp):
	take_backup(
		target=MINECRAFT_ROOT / 'server/world/region',
		storage=MINECRAFT_ROOT / f'backups/regions/{timestamp}',
		files='*.mca'
	)

	cleanup_backups(MINECRAFT_ROOT / 'backups/regions')


def backup_playerdata(timestamp):
	take_backup(
		target=MINECRAFT_ROOT / 'server/world/playerdata',
		storage=MINECRAFT_ROOT / f'backups/playerdata/{timestamp}',
		files='*.dat'
	)

	cleanup_backups(MINECRAFT_ROOT / 'backups/playerdata')


def main():
	timestamp = DateTime.now().strftime('%m-%d-%Y_%I-%M_%p')
	backup_regions(timestamp)
	backup_playerdata(timestamp)


if __name__ == '__main__':
	main()