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#!/usr/bin/env python3
import datetime, json, os.path, sys
root_dir = sys.argv[1]
serial_num = lambda n: f'{today}{n:02}'
today_str = datetime.datetime.now(datetime.UTC).date().strftime('%Y%m%d')
today = int(today_str)
def update_serial(*, zone_class, name, expected, serial):
old_serial_int = serial
new_serial = serial_num(0)
if old_serial_int is not None:
old_serial = str(old_serial_int)
if len(old_serial) > len(new_serial):
new_serial = None
elif len(old_serial) == len(new_serial):
old_day = int(old_serial[:len(today_str)])
if old_day >= today:
new_serial = None
if new_serial is None:
new_serial = str(old_serial_int + 1)
path = os.path.join(root_dir, zone_class, name, 'serial.nix')
with open(path, 'w') as serial_file:
print(f'''\
{{
config = {{
soa.serial = {new_serial};
nullSerialHash = "{expected}";
}};
}}
''', file=serial_file)
return path
paths = []
for zone_class, zones in json.load(sys.stdin).items():
for zone in zones.values():
paths.append(update_serial(**zone, zone_class=zone_class))
# Se imprime al final para evitar estados intermedios si algo tira excepción
for path in paths:
print(path)
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