Files
project-lyra/lyra/logbus.py
T
serversdown 1301f12e74 feat: run dream cycle as a systemd user service + journald-visible logs
- deploy/lyra-dream.service: --loop 1800 user service on lyra-cortex, so Lyra's
  consolidation + reflection keeps ticking unattended between conversations
- deploy/README.md: install / linger / operate runbook
- logbus: mirror events to stderr so out-of-band runs (the dream service under
  journald) are observable, not just via the in-process web SSE feed

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-17 01:42:55 +00:00

37 lines
1.2 KiB
Python

"""In-memory live log bus.
A thread-safe ring buffer that any part of Lyra can publish to and the web
server streams to the browser over SSE. Deliberately process-local and
ephemeral — it's an activity feed, not durable logging.
"""
from __future__ import annotations
import sys
import threading
import time
from collections import deque
_LOCK = threading.Lock()
_EVENTS: deque[dict] = deque(maxlen=500)
_SEQ = 0
def log(level: str, msg: str, **fields) -> None:
"""Publish an event. `level` is info/debug/error/system; fields are extras."""
global _SEQ
with _LOCK:
_SEQ += 1
_EVENTS.append(
{"seq": _SEQ, "ts": time.time(), "level": level, "msg": msg, "fields": fields}
)
# Mirror to stderr so out-of-band runs (e.g. the dream service under
# systemd/journald) are observable, not just via the in-process SSE feed.
extra = " ".join(f"{k}={v}" for k, v in fields.items())
print(f"[{level}] {msg}{(' ' + extra) if extra else ''}", file=sys.stderr, flush=True)
def since(seq: int) -> list[dict]:
"""All buffered events with seq greater than `seq` (for SSE catch-up/polling)."""
with _LOCK:
return [e for e in _EVENTS if e["seq"] > seq]