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谭凯
2026-01-19 09:51:07 +08:00
commit 9ef82393be
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"""
工具函数模块
提供配置加载、日志设置等通用功能
"""
import json
import os
from pathlib import Path
from typing import Dict, Any
from loguru import logger
import sys
def load_config(config_path: str = "config/config.json") -> Dict[str, Any]:
"""
加载配置文件
Args:
config_path: 配置文件路径
Returns:
配置字典
"""
try:
with open(config_path, 'r', encoding='utf-8') as f:
config = json.load(f)
# 从环境变量获取 API Key
if 'OPENROUTER_API_KEY' in os.environ:
config['openrouter']['api_key'] = os.environ['OPENROUTER_API_KEY']
return config
except FileNotFoundError:
raise FileNotFoundError(f"配置文件未找到: {config_path}")
except json.JSONDecodeError as e:
raise ValueError(f"配置文件格式错误: {e}")
def load_prompts(prompts_path: str = "config/prompts.json") -> Dict[str, str]:
"""
加载提示词模板
Args:
prompts_path: 提示词文件路径
Returns:
提示词字典
"""
try:
with open(prompts_path, 'r', encoding='utf-8') as f:
return json.load(f)
except FileNotFoundError:
raise FileNotFoundError(f"提示词文件未找到: {prompts_path}")
def setup_logging(config: Dict[str, Any]) -> None:
"""
设置日志配置
Args:
config: 配置字典
"""
log_config = config.get('logging', {})
# 移除默认处理器
logger.remove()
# 添加控制台输出
logger.add(
sys.stdout,
level=log_config.get('level', 'INFO'),
format="<green>{time:YYYY-MM-DD HH:mm:ss}</green> | <level>{level: <8}</level> | <cyan>{name}</cyan>:<cyan>{function}</cyan>:<cyan>{line}</cyan> - <level>{message}</level>"
)
# 添加文件输出
if 'file' in log_config:
log_file = log_config['file']
# 确保日志目录存在
Path(log_file).parent.mkdir(parents=True, exist_ok=True)
logger.add(
log_file,
level=log_config.get('level', 'INFO'),
rotation=log_config.get('rotation', '10 MB'),
retention=log_config.get('retention', '7 days'),
encoding='utf-8',
format="{time:YYYY-MM-DD HH:mm:ss} | {level: <8} | {name}:{function}:{line} - {message}"
)
def ensure_output_dir(output_dir: str) -> Path:
"""
确保输出目录存在
Args:
output_dir: 输出目录路径
Returns:
输出目录的 Path 对象
"""
output_path = Path(output_dir)
output_path.mkdir(parents=True, exist_ok=True)
return output_path
def sanitize_filename(filename: str) -> str:
"""
清理文件名,移除非法字符
Args:
filename: 原始文件名
Returns:
清理后的文件名
"""
import re
# 移除或替换非法字符
filename = re.sub(r'[<>:"/\\|?*]', '_', filename)
# 移除多余的空格和点
filename = re.sub(r'\s+', ' ', filename).strip('. ')
return filename
def format_file_size(size_bytes: int) -> str:
"""
格式化文件大小显示
Args:
size_bytes: 字节数
Returns:
格式化的大小字符串
"""
if size_bytes == 0:
return "0B"
size_names = ["B", "KB", "MB", "GB"]
import math
i = int(math.floor(math.log(size_bytes, 1024)))
p = math.pow(1024, i)
s = round(size_bytes / p, 2)
return f"{s} {size_names[i]}"
def estimate_tokens(text: str) -> int:
"""
估算文本的 token 数量
Args:
text: 输入文本
Returns:
估算的 token 数量
"""
# 简单估算:英文约 4 字符/token,中文约 1.5 字符/token
import re
# 分离中英文
chinese_chars = len(re.findall(r'[\u4e00-\u9fff]', text))
other_chars = len(text) - chinese_chars
# 估算 tokens
estimated_tokens = chinese_chars / 1.5 + other_chars / 4
return int(estimated_tokens)
def truncate_text(text: str, max_length: int = 100) -> str:
"""
截断文本用于显示
Args:
text: 原始文本
max_length: 最大长度
Returns:
截断后的文本
"""
if len(text) <= max_length:
return text
return text[:max_length-3] + "..."