server_backup.py

import subprocess, argparse, time, os, math
from datetime import date, datetime
from mcrcon import MCRcon

parser = argparse.ArgumentParser()
parser.add_argument('--target', help='Path to target backup directory', required=True)
parser.add_argument('--server', help='Server IP address', required=True)
parser.add_argument('--password', help='Server rcon password', required=True)
parser.add_argument('--output', help='Path to backups output directory', required=True)
parser.add_argument('--command_logging', help='Flag to control command logging', default=True)
args = parser.parse_args()
command_logging = args.command_logging

if args.output[-1] == '/':
    output_directory = args.output
else:
    output_directory = args.output + '/'

# helper functions
def log(*args):
    if command_logging:
        print('\u001b[32m'+ args[0], *args[1:])
def convert_size(size_bytes):
   if size_bytes == 0:
       return "0B"
   size_name = ("B", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB")
   i = int(math.floor(math.log(size_bytes, 1024)))
   p = math.pow(1024, i)
   s = round(size_bytes / p, 2)
   return "%s %s" % (s, size_name[i])

log('# Starting minecraft server backup script')
log('# Target backup directory:', args.target)
log('# Connecting to running server')
log('# Starting rcon client')

with MCRcon(args.server, args.password) as mcr:
    log('# Connected')
    log('# Sending save command')
    response = mcr.command('say Starting Server Backup')
    response = mcr.command('save-all')
    response = mcr.command('save-off')
    log('# Sleeping to allow save to complete')
    time.sleep(4)
    log('# Save complete')
    log('# Starting directory backup')
    now = datetime.now()
    filename = now.strftime("%Y-%m-%d_%H.%M_") + args.server + '_' + args.target.split("/")[-2] + '_server_backup.tar.gz'
    log('# Archiving to', filename)
    start_time = time.time()
    subprocess.run(['tar', '-cvzf', output_directory + filename, args.target])
    time_elapsed = time.strftime('%M:%S', time.gmtime(time.time()-start_time))
    backup_size = convert_size(os.stat(output_directory + filename).st_size)
    log('# Backup size:', backup_size)
    log('# Backup completed in ' + time_elapsed + ', re-enabling autosave')
    response = mcr.command('save-on')
    response = mcr.command('say Server Backup Complete, §oTime Elapsed: ' + time_elapsed + ", §oBackup §oSize: §o" + backup_size)

log('# Done', '\u001b[0m')