Mawoka
48 lines
1.6 KiB
Python
48 lines
1.6 KiB
Python
# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at https://mozilla.org/MPL/2.0/.
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import os
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from typing import BinaryIO, Generator
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import aiofiles
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import aiofiles.os
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_DEFAULT_CHUNK_SIZE = 32768 # bytes; arbitrary
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async def aioshutil_copyfileobj(async_fsrc, async_fdst, *, chunksize: int = _DEFAULT_CHUNK_SIZE) -> None:
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while (chunk := await async_fsrc.read(chunksize)) != b"":
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await async_fdst.write(chunk)
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class LocalStorage:
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def __init__(self, base_path: str):
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self.base_path = base_path
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async def download(self, file_name: str) -> Generator | None:
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try:
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async with aiofiles.open(file=os.path.join(self.base_path, file_name), mode="rb") as f:
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yield f.read()
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except FileNotFoundError:
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yield None
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# skipcq: PYL-W0613
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async def upload(self, file_name: str, file: BinaryIO, mime_type: str | None = None) -> None:
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async with aiofiles.open(file=os.path.join(self.base_path, file_name), mode="wb") as f:
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await aioshutil_copyfileobj(file, f)
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async def delete(self, file_names: [str]) -> None:
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for i in file_names:
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try:
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await aiofiles.os.remove(os.path.join(self.base_path, i))
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except FileNotFoundError:
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pass
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return None
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def size(self, file_name: str) -> int | None:
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try:
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return os.stat(os.path.join(self.base_path, file_name))
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except FileNotFoundError:
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return None
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