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2026-07-13 11:59:58 +08:00

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Python

"""Start a hermetic *replay* gateway for the full-stack (Layer 2) e2e.
Builds an ephemeral config that points the model at ``ReplayChatModel`` + a
recorded fixture, then runs uvicorn — no API key, deterministic. Used as a
Playwright ``webServer`` (see ``frontend/playwright.real-backend.config.ts``) and
runnable standalone for debugging::
uv run python scripts/run_replay_gateway.py --port 8011
``tests/`` is put on the path so the config ``use: replay_provider:ReplayChatModel``
resolves; ``GATEWAY_CORS_ORIGINS`` is set so the frontend on :3000 can talk to it.
"""
from __future__ import annotations
import argparse
import os
import sys
import tempfile
from pathlib import Path
_BACKEND = Path(__file__).resolve().parents[1]
sys.path.insert(0, str(_BACKEND))
sys.path.insert(0, str(_BACKEND / "tests")) # replay_provider + build_config_yaml live here
def main() -> int:
parser = argparse.ArgumentParser()
parser.add_argument("--port", type=int, default=8011)
parser.add_argument("--fixture", default=str(_BACKEND / "tests" / "fixtures" / "replay" / "write_read_file.ultra.json"))
parser.add_argument("--cors", default="http://localhost:3000")
args = parser.parse_args()
from _replay_fixture import REPLAY_MODEL_BLOCK, build_config_yaml, prepare_hermetic_extras
home = Path(tempfile.mkdtemp(prefix="replay-gw-"))
cfg = home / "config.yaml"
cfg.write_text(build_config_yaml(model_block=REPLAY_MODEL_BLOCK, home=home), encoding="utf-8")
# Override (not setdefault): the replay gateway must be hermetic, so an outer
# DEER_FLOW_HOME can't leak in and shift prompt-affecting paths/skills.
os.environ["DEER_FLOW_HOME"] = str(home)
os.environ["DEER_FLOW_CONFIG_PATH"] = str(cfg)
os.environ["DEER_FLOW_EXTENSIONS_CONFIG_PATH"] = str(prepare_hermetic_extras(home))
os.environ["DEERFLOW_REPLAY_FIXTURE"] = args.fixture
os.environ.setdefault("AUTH_JWT_SECRET", "ci-replay-secret")
os.environ["GATEWAY_CORS_ORIGINS"] = args.cors
# Child / dynamic imports (resolve_class) search PYTHONPATH too.
os.environ["PYTHONPATH"] = os.pathsep.join(p for p in (str(_BACKEND), str(_BACKEND / "tests"), os.environ.get("PYTHONPATH", "")) if p)
import uvicorn
target: str | object = "app.gateway.app:app"
# Test-only: attach the run/message seeder used by the multi-run render-order
# e2e (#3352). Imported from tests/ and mounted here only — never in the
# production app. Pass the app object (not the import string) so the extra
# router is registered before uvicorn serves it.
if os.environ.get("DEERFLOW_ENABLE_TEST_SEED") == "1":
from seed_runs_router import router as seed_router
from app.gateway.app import app as gateway_app
gateway_app.include_router(seed_router)
target = gateway_app
print("[replay-gw] test-only seed router mounted at /api/test-only/seed-runs", flush=True)
print(f"[replay-gw] config={cfg} fixture={args.fixture} cors={args.cors} port={args.port}", flush=True)
uvicorn.run(target, host="127.0.0.1", port=args.port, log_level="warning")
return 0
if __name__ == "__main__":
raise SystemExit(main())