mirror of
https://github.com/CJackHwang/ds2api.git
synced 2026-05-04 00:15:28 +08:00
107 lines
3.6 KiB
Python
107 lines
3.6 KiB
Python
# -*- coding: utf-8 -*-
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"""配置管理模块"""
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import base64
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import json
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import logging
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import os
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import sys
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import transformers
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# -------------------------- 获取项目根目录 --------------------------
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BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
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IS_VERCEL = bool(os.getenv("VERCEL")) or bool(os.getenv("NOW_REGION"))
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def resolve_path(env_key: str, default_rel: str) -> str:
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"""解析路径，支持环境变量覆盖"""
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raw = os.getenv(env_key)
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if raw:
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return raw if os.path.isabs(raw) else os.path.join(BASE_DIR, raw)
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return os.path.join(BASE_DIR, default_rel)
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# -------------------------- 日志配置 --------------------------
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logging.basicConfig(
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level=os.getenv("LOG_LEVEL", "INFO").upper(),
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format="%(asctime)s [%(levelname)s] %(name)s: %(message)s",
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handlers=[logging.StreamHandler(sys.stdout)],
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force=True,
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)
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logger = logging.getLogger("ds2api")
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# -------------------------- 初始化 tokenizer --------------------------
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chat_tokenizer_dir = resolve_path("DS2API_TOKENIZER_DIR", "")
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tokenizer = transformers.AutoTokenizer.from_pretrained(
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chat_tokenizer_dir, trust_remote_code=True
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)
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# ----------------------------------------------------------------------
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# 配置文件的读写函数
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# ----------------------------------------------------------------------
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CONFIG_PATH = resolve_path("DS2API_CONFIG_PATH", "config.json")
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def load_config() -> dict:
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"""加载配置。
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优先从环境变量读取：
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- DS2API_CONFIG_JSON / CONFIG_JSON: 直接 JSON 字符串，或 base64 编码后的 JSON
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若未提供环境变量，再从 CONFIG_PATH 指向的文件读取。
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"""
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raw_cfg = os.getenv("DS2API_CONFIG_JSON") or os.getenv("CONFIG_JSON")
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if raw_cfg:
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try:
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return json.loads(raw_cfg)
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except json.JSONDecodeError:
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try:
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decoded = base64.b64decode(raw_cfg).decode("utf-8")
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return json.loads(decoded)
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except Exception as e:
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logger.warning(f"[load_config] 环境变量配置解析失败: {e}")
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return {}
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try:
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with open(CONFIG_PATH, "r", encoding="utf-8") as f:
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return json.load(f)
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except Exception as e:
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logger.warning(f"[load_config] 无法读取配置文件({CONFIG_PATH}): {e}")
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return {}
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def save_config(cfg: dict) -> None:
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"""将配置写回 config.json。
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Vercel 环境文件系统通常是只读的；且如果配置来自环境变量，也无法回写。
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所以这里失败不应影响主流程。
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"""
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if os.getenv("DS2API_CONFIG_JSON") or os.getenv("CONFIG_JSON"):
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logger.info("[save_config] 配置来自环境变量，跳过写回")
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return
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try:
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with open(CONFIG_PATH, "w", encoding="utf-8") as f:
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json.dump(cfg, f, ensure_ascii=False, indent=2)
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except PermissionError as e:
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logger.warning(f"[save_config] 配置文件不可写({CONFIG_PATH}): {e}")
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except Exception as e:
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logger.exception(f"[save_config] 写入 config.json 失败: {e}")
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# 全局配置
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CONFIG = load_config()
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if not CONFIG:
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logger.warning(
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"[config] 未加载到有效配置，请提供 config.json（路径可用 DS2API_CONFIG_PATH 指定）或设置环境变量 DS2API_CONFIG_JSON"
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)
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# WASM 模块文件路径
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WASM_PATH = resolve_path("DS2API_WASM_PATH", "sha3_wasm_bg.7b9ca65ddd.wasm")
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# 模板目录
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TEMPLATES_DIR = resolve_path("DS2API_TEMPLATES_DIR", "templates")
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# WebUI 静态文件目录
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STATIC_ADMIN_DIR = resolve_path("DS2API_STATIC_ADMIN_DIR", "static/admin")
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