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NeoNetwork/scripts/update-zone-serial.py

41 lines
1.2 KiB
Python
Executable file

#!/usr/bin/env python3
from pathlib import Path
import subprocess
from time import time
from re import match
from os import chdir
chdir("generated")
zone_files = [
'neonetwork',
'db.10.127',
'db.fd10.127',
]
serial_base = 1586876035
for zone in zone_files:
zone = Path("dns") / zone
assert zone.exists()
p = subprocess.run(['git', 'diff', '--exit-code', str(zone)])
if p.returncode == 0:
print(f"skip {zone.name}")
else:
print(f"update serial {zone.name}")
lines = zone.read_text().split("\n")
processed = list()
serial = int(time()) - serial_base
assert 0 < serial <= 2**32
serial = str(serial)
found = False
for line in lines:
if not found and (m := match(r"^(\s+)([0-9]+)(\s*;\s*Serial\s*)$", line)):
prefix, _serial, suffix = m.groups()
print(f"{_serial=} {serial=}")
plen = max(len(prefix) - len(serial) + len(_serial), 0)
processed.append(f"{' '*plen}{serial}{suffix}")
found = True
else:
processed.append(line)
zone.write_text("\n".join(processed))