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refactor(config): eliminate global mutable state, wire DeerFlowContext into runtime

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- Freeze all config models (AppConfig + 15 sub-configs) with frozen=True
- Purify from_file() — remove 9 load_*_from_dict() side-effect calls
- Replace mtime/reload/push/pop machinery with single ContextVar + init_app_config()
- Delete 10 sub-module globals and their getters/setters/loaders
- Migrate 50+ consumers from get_*_config() to get_app_config().xxx

- Expand DeerFlowContext: app_config + thread_id + agent_name (frozen dataclass)
- Wire into Gateway runtime (worker.py) and DeerFlowClient via context= parameter
- Remove sandbox_id from runtime.context — flows through ThreadState.sandbox only
- Middleware/tools access runtime.context directly via Runtime[DeerFlowContext] generic
- resolve_context() retained at server entry points for LangGraph Server fallback
This commit is contained in:
greatmengqi
2026-04-13 23:49:31 +08:00
parent c4d273a68a
commit edf345cd72
111 changed files with 4848 additions and 4079 deletions
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backend/tests/test_thread_data_middleware.py
+23 -26
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@@ -1,58 +1,55 @@
import pytest
from langgraph.runtime import Runtime
from deerflow.agents.middlewares.thread_data_middleware import ThreadDataMiddleware
from deerflow.config.app_config import AppConfig
from deerflow.config.deer_flow_context import DeerFlowContext
from deerflow.config.sandbox_config import SandboxConfig
def _as_posix(path: str) -> str:
return path.replace("\\", "/")
def _make_context(thread_id: str) -> DeerFlowContext:
return DeerFlowContext(
app_config=AppConfig(sandbox=SandboxConfig(use="test")),
thread_id=thread_id,
)
class TestThreadDataMiddleware:
def test_before_agent_returns_paths_when_thread_id_present_in_context(self, tmp_path):
middleware = ThreadDataMiddleware(base_dir=str(tmp_path), lazy_init=True)
from langgraph.runtime import Runtime
result = middleware.before_agent(state={}, runtime=Runtime(context={"thread_id": "thread-123"}))
result = middleware.before_agent(state={}, runtime=Runtime(context=_make_context("thread-123")))
assert result is not None
assert _as_posix(result["thread_data"]["workspace_path"]).endswith("threads/thread-123/user-data/workspace")
assert _as_posix(result["thread_data"]["uploads_path"]).endswith("threads/thread-123/user-data/uploads")
assert _as_posix(result["thread_data"]["outputs_path"]).endswith("threads/thread-123/user-data/outputs")
def test_before_agent_uses_thread_id_from_configurable_when_context_is_none(self, tmp_path, monkeypatch):
def test_before_agent_uses_thread_id_from_context(self, tmp_path):
middleware = ThreadDataMiddleware(base_dir=str(tmp_path), lazy_init=True)
runtime = Runtime(context=None)
monkeypatch.setattr(
"deerflow.agents.middlewares.thread_data_middleware.get_config",
lambda: {"configurable": {"thread_id": "thread-from-config"}},
)
from langgraph.runtime import Runtime
result = middleware.before_agent(state={}, runtime=runtime)
result = middleware.before_agent(state={}, runtime=Runtime(context=_make_context("thread-from-config")))
assert result is not None
assert _as_posix(result["thread_data"]["workspace_path"]).endswith("threads/thread-from-config/user-data/workspace")
assert runtime.context is None
def test_before_agent_uses_thread_id_from_configurable_when_context_missing_thread_id(self, tmp_path, monkeypatch):
def test_before_agent_uses_thread_id_from_typed_context(self, tmp_path):
middleware = ThreadDataMiddleware(base_dir=str(tmp_path), lazy_init=True)
runtime = Runtime(context={})
monkeypatch.setattr(
"deerflow.agents.middlewares.thread_data_middleware.get_config",
lambda: {"configurable": {"thread_id": "thread-from-config"}},
)
from langgraph.runtime import Runtime
result = middleware.before_agent(state={}, runtime=runtime)
result = middleware.before_agent(state={}, runtime=Runtime(context=_make_context("thread-from-dict")))
assert result is not None
assert _as_posix(result["thread_data"]["uploads_path"]).endswith("threads/thread-from-config/user-data/uploads")
assert runtime.context == {}
assert _as_posix(result["thread_data"]["uploads_path"]).endswith("threads/thread-from-dict/user-data/uploads")
def test_before_agent_raises_clear_error_when_thread_id_missing_everywhere(self, tmp_path, monkeypatch):
def test_before_agent_raises_clear_error_when_thread_id_missing(self, tmp_path):
middleware = ThreadDataMiddleware(base_dir=str(tmp_path), lazy_init=True)
monkeypatch.setattr(
"deerflow.agents.middlewares.thread_data_middleware.get_config",
lambda: {"configurable": {}},
)
from langgraph.runtime import Runtime
with pytest.raises(ValueError, match="Thread ID is required in runtime context or config.configurable"):
middleware.before_agent(state={}, runtime=Runtime(context=None))
with pytest.raises(ValueError, match="Thread ID is required"):
middleware.before_agent(state={}, runtime=Runtime(context=_make_context("")))