Files
misskey/packages/backend/src/misc/FileWriterStream.ts
renovate[bot] e61263cff0 fix(deps): update [backend] update dependencies (#15596)
* fix(deps): update [backend] update dependencies

* fix(backend/types): ensure to use nodejs-provided stream api

---------

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: kakkokari-gtyih <67428053+kakkokari-gtyih@users.noreply.github.com>
2025-03-21 19:38:11 +09:00

38 lines
819 B
TypeScript

/*
* SPDX-FileCopyrightText: syuilo and misskey-project
* SPDX-License-Identifier: AGPL-3.0-only
*/
import * as fs from 'node:fs/promises';
import { WritableStream } from 'node:stream/web';
import type { PathLike } from 'node:fs';
/**
* `fs.createWriteStream()`相当のことを行う`WritableStream` (Web標準)
*/
export class FileWriterStream extends WritableStream<Uint8Array> {
constructor(path: PathLike) {
let file: fs.FileHandle | null = null;
super({
start: async () => {
file = await fs.open(path, 'a');
},
write: async (chunk, controller) => {
if (file === null) {
controller.error();
throw new Error();
}
await file.write(chunk);
},
close: async () => {
await file?.close();
},
abort: async () => {
await file?.close();
},
});
}
}