监视指定目录下文件变更。

# -*- coding: utf-8 -*-# @Author: xiaodong# @Date: just hide# @Last Modified by: xiaodong# @Last Modified time: just hideimport osimport globimport jsonimport datetimefrom typing import Iterable"""监视指定目录下文件变更"""def penetrate(root: os.path) -> Iterable: for ele in glob.glob(os.path.join(root, '*')): if os.path.isdir(ele): yield ele yield from penetrate(os.path.abspath(ele)) else: yield eledef update(s: set, exists: bool=False, mode: str='w') -> None or dict : with open('file_records.json', encoding='utf-8', mode=mode) as file: if not exists: json.dump({'datetime': str(datetime.datetime.now()), 'files': list(s)}, file, ensure_ascii=False, indent=10) else: return json.load(file)def main(s: set=set(), root: os.path='.')-> None: for path in penetrate(root): s.add(path) if not os.path.exists('file_records.json'): update(s) else: d = update(None, True, 'r') files = s - set(d['files']) files2 = set(d['files']) - s if files: print('增加文件: ', files) if files2: print('删除文件: ', files2) if files or files2: update(s) print('更新成功!')if __name__ == "__main__": main()

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