Files
plugins/backup/backup-cli
fmhoeger 46f28a88a2 Fix backup plugin
Update required Python version
Update pyln and other packages
Update README
2024-02-12 20:40:57 +00:00

101 lines
3.2 KiB
Python
Executable File

#!/usr/bin/env python3
from backends import get_backend
from backend import Change
from server import SocketServer, setup_server_logging
import os
import click
import json
import logging
import sqlite3
import sys
root = logging.getLogger()
root.setLevel(logging.INFO)
handler = logging.StreamHandler(sys.stdout)
handler.setLevel(logging.DEBUG)
formatter = logging.Formatter('%(message)s')
handler.setFormatter(formatter)
root.addHandler(handler)
@click.command()
@click.argument("backend-url")
@click.option('--lightning-dir', type=click.Path(exists=True), default=None, help='Use an existing lightning directory (default: initialize an empty backup).')
def init(lightning_dir, backend_url):
destination = backend_url
backend = get_backend(destination, create=True)
if lightning_dir is not None:
lock_file = os.path.join(lightning_dir, "backup.lock")
db_file = os.path.join(lightning_dir, "lightningd.sqlite3")
with open(lock_file, "w") as f:
f.write(json.dumps({
'backend_url': destination,
}))
data_version = 0
if os.path.exists(db_file):
print("Found an existing database at {db_file}, initializing the backup with a snapshot".format(db_file=db_file))
# Peek into the DB to see if we have
db = sqlite3.connect(db_file)
cur = db.cursor()
rows = cur.execute("SELECT intval FROM vars WHERE name = 'data_version'")
data_version = rows.fetchone()[0]
snapshot = Change(
version=data_version,
snapshot=open(db_file, 'rb').read(),
transaction=None
)
if not backend.add_change(snapshot):
print("Could not write snapshot to backend")
sys.exit(1)
else:
print("Successfully written initial snapshot to {destination}".format(destination=destination))
else:
print("Database does not exist yet, created an empty backup file")
print("Initialized backup backend {destination}, you can now start Core-Lightning".format(
destination=destination,
))
@click.command()
@click.argument("backend-url")
@click.argument("restore-destination")
def restore(backend_url, restore_destination):
destination = backend_url
backend = get_backend(destination)
backend.restore(restore_destination)
@click.command()
@click.argument("backend-url")
@click.argument("addr")
@click.option('--log-mode', type=click.Choice(['plain', 'systemd'], case_sensitive=False), default='plain', help='Debug log mode, defaults to plain')
@click.option('--log-level', type=click.Choice(['debug', 'info', 'notice', 'warning', 'error', 'critical'], case_sensitive=False), default='info', help='Debug log level, defaults to info')
def server(backend_url, addr, log_mode, log_level):
backend = get_backend(backend_url)
addr, port = addr.split(':')
port = int(port)
setup_server_logging(log_mode, log_level)
server = SocketServer((addr, port), backend)
server.run()
@click.group()
def cli():
pass
cli.add_command(init)
cli.add_command(restore)
cli.add_command(server)
if __name__ == "__main__":
cli()