safe_executor.py

import os
import shutil

class SafeExecutor:
    def __init__(self, paths_to_cleanup):
        self.paths_to_cleanup = paths_to_cleanup
        self.original_state = {}

    def __enter__(self):
        for path in self.paths_to_cleanup:
            if os.path.exists(path):
                self.original_state[path] = os.listdir(path)
            else:
                self.original_state[path] = None

    def __exit__(self, exc_type, exc_value, traceback):
        if exc_type is not None:
            print("An error occurred, reverting changes...")
            for path in self.paths_to_cleanup:
                if self.original_state[path] is None:
                    if os.path.exists(path):
                        shutil.rmtree(path)
                else:
                    current_files = os.listdir(path)
                    for file in current_files:
                        if file not in self.original_state[path]:
                            file_path = os.path.join(path, file)
                            if os.path.isfile(file_path):
                                os.remove(file_path)
                            else:
                                shutil.rmtree(file_path)
            return False  # Propagate the exception
        return True