feat(engine): 添加核心基础设施 — engine/common 模块
- engine/__init__.py: 包入口,导出 Kline/KlineInterval/OrderBook/Ticker/Trade - common/base.py: BaseStrategy 抽象基类,定义 on_kline/on_ticker/on_orderbook 回调 - common/models.py: Pydantic 数据模型,与 TS 侧 types 字段对齐,支持字段校验 - common/config.py: 全局配置加载(YAML),统一 engine/env.yaml 读取 - common/logger.py: 结构化日志,支持 JSON/pretty print 输出
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"""
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日志模块 — 系统级结构化日志
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基于标准库 logging + 结构化格式,支持按级别、模块过滤。
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"""
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import logging
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import sys
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# ── 日志器 ──
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logger = logging.getLogger("trade")
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"""全局日志器,策略代码通过 `from .logger import logger` 使用"""
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# ── 控制台输出 ──
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_handler = logging.StreamHandler(sys.stdout)
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_handler.setLevel(logging.DEBUG)
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_formatter = logging.Formatter(
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fmt="%(asctime)s | %(levelname)-7s | %(name)s | %(message)s",
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datefmt="%Y-%m-%d %H:%M:%S",
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)
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_handler.setFormatter(_formatter)
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logger.addHandler(_handler)
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logger.setLevel(logging.DEBUG)
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# 避免日志向上传播到 root logger 导致重复输出
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logger.propagate = False
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