remove .DS_Store and ._*

ds_store_cleaner.py

import os
from collections import deque

# 可自定义的垃圾文件规则配置
RULES = (
    {
        "name": "DS_Store files",
        "match": lambda n: n == ".DS_Store",
        "condition": lambda e: e.stat().st_size <= 1024**2,  # 1MB
    },
    {
        "name": "Resource fork files",
        "match": lambda n: n.startswith("._"),
        "condition": lambda e: e.stat().st_size <= 8*1024,  # 8KB
    }
)

def scan_directory(root: str) -> list[str]:
    """扫描目录并返回匹配文件列表"""
    matched = []
    dirs = deque([root])
    
    while dirs:
        current_dir = dirs.popleft()
        try:
            with os.scandir(current_dir) as it:
                for entry in it:
                    try:
                        if entry.is_dir(follow_symlinks=False):
                            dirs.append(entry.path)
                            continue
                            
                        for rule in RULES:
                            if rule["match"](entry.name):
                                try:
                                    if rule["condition"](entry):
                                        print(f"Found: {entry.path}")
                                        matched.append(entry.path)
                                        break  # 匹配成功则跳过其他规则
                                except OSError as e:
                                    print(f"Error checking {entry.path}: {e}")
                                break  # 跳过后续规则检查
                    except OSError as e:
                        print(f"Error accessing {entry.path}: {e}")
        except PermissionError:
            print(f"Permission denied: {current_dir}")
        except OSError as e:
            print(f"Error scanning {current_dir}: {e}")
    
    return matched

def delete_files(files: list[str]) -> int:
    """删除文件并返回成功数量"""
    deleted = 0
    for path in files:
        try:
            os.remove(path)
            print(f"Deleted: {path}")
            deleted += 1
        except OSError as e:
            print(f"Delete failed [{path}]: {e}")
    return deleted

def main():
    path = input("Enter directory path: ").strip().strip('"').strip("'")
    path = os.path.normpath(path)
    
    if not os.path.isdir(path):
        print("Error: Invalid directory path")
        return
    
    print("Scanning...")
    matches = scan_directory(path)
    
    if not matches:
        print("No matching files found")
        return
    
    print(f"\nFound {len(matches)} files to delete")
    if input("Confirm deletion? (y/n): ").strip().lower() == "y":
        success = delete_files(matches)
        print(f"Successfully deleted {success}/{len(matches)} files")
    else:
        print("Deletion canceled")

if __name__ == "__main__":
    main()