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46 lines
1.5 KiB
Python
46 lines
1.5 KiB
Python
"""文件管理模块的惰性兼容入口。
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宿主能力清单和历史调用方继续使用 ``app.modules.filemanager:FileManagerModule``；
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实现移入 ``module`` 后，包初始化不再反向加载传输处理器和存储实现。
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"""
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from importlib import import_module
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from typing import Any
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_EXPORTS = {
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"DirectoryHelper": ("app.modules.filemanager.module", "DirectoryHelper"),
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"FileManagerModule": ("app.modules.filemanager.module", "FileManagerModule"),
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"StorageBase": ("app.modules.filemanager.storages", "StorageBase"),
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"TransHandler": ("app.modules.filemanager.transhandler", "TransHandler"),
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"settings": ("app.modules.filemanager.module", "settings"),
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}
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def __getattr__(name: str) -> Any:
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"""按需解析旧包级导出，并缓存解析结果。"""
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contract = _EXPORTS.get(name)
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if contract is None:
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raise AttributeError(f"module {__name__!r} has no attribute {name!r}")
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module_name, symbol_name = contract
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value = getattr(import_module(module_name), symbol_name)
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if name == "FileManagerModule":
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# 保持插件反射、Pickle 和能力入口依赖的历史类路径。
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value.__module__ = __name__
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globals()[name] = value
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return value
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def __dir__() -> list[str]:
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"""向交互式工具公开兼容符号而不提前导入实现。"""
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return sorted({*globals(), *_EXPORTS})
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__all__ = [
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"DirectoryHelper",
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"FileManagerModule",
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"StorageBase",
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"TransHandler",
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"settings",
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]
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