61 lines
1.3 KiB
Python
61 lines
1.3 KiB
Python
"""Project Knowledge Graph service.
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第一阶段目标：
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1. 构建统一实体/关系/证据写入能力
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2. 支持结构化数据（project/task/signal/user）同步
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3. 支持代码目录扫描快照
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4. 提供图谱概览统计
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"""
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from __future__ import annotations
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import hashlib
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import json
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import os
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from datetime import datetime, timedelta, timezone
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from pathlib import Path
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from typing import Any, Optional
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from sqlalchemy import and_, func, select
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from sqlalchemy.ext.asyncio import AsyncSession
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from ...models import (
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IngestEvent,
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IngestOffset,
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KGEvidence,
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KGEntity,
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KGRelation,
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KGSyncRun,
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Project,
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FeishuItem,
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Signal,
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SymbolDefinition,
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SymbolReference,
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Task,
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User,
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)
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from ..context_cache_service import context_cache_service
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from ..signal.symbol_index import SymbolIndexService
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from ...utils.timezone import now_cn_naive
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def _utc_now_naive() -> datetime:
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return now_cn_naive()
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DDL_BLOCKED_PREFIXES = [
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"CREATE",
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"ALTER",
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"DROP",
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"TRUNCATE",
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"RENAME",
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"COMMENT",
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"GRANT",
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"REVOKE",
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]
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DDL_GUARDRAIL_POLICY_KEY = "policy:ddl_via_interface_only"
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DDL_GUARDRAIL_POLICY_NAME = "DDL 只能通过受控接口/迁移流程"
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__all__ = [name for name in globals() if not name.startswith("__")]
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