Files
DECNET/scripts/bus/sub.py
anti f2b3393669 chore: relicense to AGPL-3.0-or-later and add SPDX headers
Replaces LICENSE (GPLv3 -> AGPLv3) and prepends
`SPDX-License-Identifier: AGPL-3.0-or-later` to every source file
across decnet/, decnet_web/, tests/, scripts/, and tools/.

Rationale: closes the GPLv3 ASP loophole so any party operating a
modified DECNET as a network service must offer their modified
source. Personal copyright (Samuel Paschuan) + inbound=outbound
contributions make a future unilateral relicense infeasible.

- LICENSE: full AGPL-3.0 text (gnu.org/licenses/agpl-3.0.txt)
- COPYRIGHT: project copyright notice
- tools/add_spdx_headers.py: idempotent header injector
  (shebang- and PEP 263-aware)

Touches 1565 source files (.py, .ts, .tsx, .js, .jsx, .css, .sh).
No behavior change; comments only.
2026-05-22 21:04:16 -04:00

40 lines
1.1 KiB
Python
Executable File

#!/usr/bin/env python3
# SPDX-License-Identifier: AGPL-3.0-or-later
"""Subscribe to a pattern on the local DECNET bus and print events.
Usage: scripts/bus/sub.py 'topology.>'
scripts/bus/sub.py 'system.bus.health'
DECNET_BUS_SOCKET=/tmp/decnet-bus.sock scripts/bus/sub.py 'topology.*.status'
"""
from __future__ import annotations
import asyncio
import os
import sys
from decnet.bus.unix_client import UnixSocketBus
async def main(pattern: str) -> None:
sock = os.environ.get("DECNET_BUS_SOCKET", "/tmp/decnet-bus.sock")
client = UnixSocketBus(sock, client_name="scripts-sub")
await client.connect()
sub = client.subscribe(pattern)
print(f"sub: pattern={pattern!r} socket={sock} (Ctrl-C to stop)", flush=True)
try:
async with sub:
async for ev in sub:
print(f"{ev.topic} type={ev.type!r} payload={ev.payload}", flush=True)
finally:
await client.close()
if __name__ == "__main__":
if len(sys.argv) != 2:
print("Usage: sub.py <pattern>", file=sys.stderr)
sys.exit(2)
try:
asyncio.run(main(sys.argv[1]))
except KeyboardInterrupt:
pass