初始化提交
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"""主 Settings:多继承所有子配置,统一以绝对路径 ``_env_file`` 加载 ``.env``。
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子配置见同目录下的 ``app_config`` / ``auth_config`` / ``database_config`` / ``log_config`` /
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``runtime_config`` / ``model_config`` / ``sandbox_config``。本文件聚合字段,并承载
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跨子配置的路径解析与计算属性。
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配置优先级(自高到低):命令行参数 > 系统环境变量 > ``.env`` > 类属性默认值。
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"""
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from __future__ import annotations
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from functools import cached_property
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from pathlib import Path
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from pydantic_settings import BaseSettings, SettingsConfigDict
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from app.core.config.app_config import AppConfig
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from app.core.config.auth_config import AuthConfig
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from app.core.config.database_config import DatabaseConfig
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from app.core.config.log_config import LogConfig
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from app.core.config.model_config import ModelGatewayConfig
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from app.core.config.runtime_config import RuntimeConfig
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from app.core.config.sandbox_config import SandboxSettings
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from app.core.config.time_config import TimeConfig
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# backend 目录:app/core/config/settings.py → parents[3] = backend/
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_BACKEND_DIR = Path(__file__).resolve().parents[3]
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# .env 永远在项目根目录(backend 父级),以绝对路径定位
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_ENV_FILE = _BACKEND_DIR.parent / ".env"
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class Settings(
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AppConfig,
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AuthConfig,
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DatabaseConfig,
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LogConfig,
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RuntimeConfig,
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ModelGatewayConfig,
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SandboxSettings,
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TimeConfig,
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BaseSettings,
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):
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"""应用配置类。
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所有配置项可通过 ``.env`` 文件或环境变量覆盖。路径配置会自动解析为绝对路径。
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"""
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model_config = SettingsConfigDict(
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env_file=str(_ENV_FILE), # 绝对路径,不使用 python-dotenv
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env_file_encoding="utf-8",
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case_sensitive=False, # 环境变量名不区分大小写
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extra="ignore", # 忽略未定义的额外字段
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)
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# ==================== 路径解析 ====================
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@cached_property
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def backend_dir(self) -> Path:
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"""backend 目录路径。"""
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return _BACKEND_DIR
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@cached_property
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def project_root(self) -> Path:
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"""项目根目录路径(backend 的父级)。"""
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return _BACKEND_DIR.parent
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def resolve_from_backend(self, value: str) -> Path:
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"""解析相对于 backend 目录的路径为绝对路径。
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Args:
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value: 相对路径或绝对路径字符串
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Returns:
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解析后的绝对路径
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"""
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path = Path(value)
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if path.is_absolute():
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return path
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return (self.backend_dir / path).resolve()
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# ==================== 计算属性 ====================
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@property
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def resolved_database_url(self) -> str:
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"""解析数据库连接 URL。
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如果设置了 ``database_url`` 则直接使用,否则根据 ``database_type`` 构建。
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"""
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if self.database_url:
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return self.database_url
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if self.database_type == "sqlite":
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db_path = self.resolve_from_backend(self.sqlite_database_path)
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return f"sqlite+aiosqlite:///{db_path}"
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password = self.postgres_password
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ssl = "?ssl=require" if self.postgres_ssl else ""
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return (
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f"postgresql+asyncpg://{self.postgres_user}:{password}"
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f"@{self.postgres_host}:{self.postgres_port}/{self.postgres_db}{ssl}"
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)
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@cached_property
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def resolved_log_dir(self) -> Path:
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"""解析日志目录为绝对路径。"""
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return self.resolve_from_backend(self.log_dir)
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@cached_property
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def resolved_character_templates_path(self) -> Path:
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"""解析人物模板配置文件路径。
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如果配置文件不存在,尝试使用示例配置文件。
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"""
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configured = self.resolve_from_backend(self.character_templates_path)
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if configured.exists():
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return configured
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example = self.project_root / "config" / "character_templates.example.yaml"
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if example.exists():
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return example
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return configured
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@cached_property
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def resolved_model_config_path(self) -> Path:
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"""解析模型配置文件路径。
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如果配置文件不存在,尝试使用示例配置文件。
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"""
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configured = self.resolve_from_backend(self.model_config_path)
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if configured.exists():
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return configured
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# 如果配置文件不存在,尝试使用示例配置
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example = self.project_root / "config" / "models.example.yaml"
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if example.exists():
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return example
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return configured
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@cached_property
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def resolved_avatar_dir(self) -> Path:
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"""解析角色头像存储目录为绝对路径。"""
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path = self.resolve_from_backend(self.avatar_dir)
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path.mkdir(parents=True, exist_ok=True)
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return path
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# 全局配置实例
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settings = Settings()
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