Files
trading-agent/orchestration/checkpoint.py
T

33 lines
1.1 KiB
Python

"""Incremental, crash-safe JSON output. Each agent's output is (over)written atomically
after every research round and again at finalize, so a hang or power loss mid-run still
leaves the best-so-far result on disk under state/output/<trade_date>/<persona>.json.
"""
from __future__ import annotations
import os
from pathlib import Path
from agents.schemas import AgentOutput, RunManifest
def _atomic_write(path: Path, text: str) -> None:
tmp = path.with_suffix(path.suffix + ".tmp")
tmp.write_text(text)
os.replace(tmp, path) # atomic on the same filesystem
class Checkpointer:
def __init__(self, output_dir: Path, trade_date: str):
self.dir = Path(output_dir) / trade_date
self.dir.mkdir(parents=True, exist_ok=True)
def agent_path(self, persona_id: str) -> Path:
return self.dir / f"{persona_id}.json"
def write(self, output: AgentOutput) -> None:
_atomic_write(self.agent_path(output.persona_id), output.model_dump_json(indent=2))
def write_manifest(self, manifest: RunManifest) -> None:
_atomic_write(self.dir / "_manifest.json", manifest.model_dump_json(indent=2))