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Chore: async write stream & mkdirp

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SukkaW
2024-09-15 14:06:22 +08:00
parent 49787fc664
commit e7cc9e2924
7 changed files with 60 additions and 23 deletions
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28
Build/lib/create-file.ts
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@@ -10,6 +10,7 @@ import stringify from 'json-stringify-pretty-compact';
import { ipCidrListToSingbox, surgeDomainsetToSingbox, surgeRulesetToSingbox } from './singbox';
import { createTrie } from './trie';
import { pack, unpackFirst, unpackSecond } from './bitwise';
import { asyncWriteToStream } from './async-write-to-stream';
export async function compareAndWriteFile(span: Span, linesA: string[], filePath: string) {
let isEqual = true;
@@ -67,17 +68,24 @@ export async function compareAndWriteFile(span: Span, linesA: string[], filePath
}
await span.traceChildAsync(`writing ${filePath}`, async () => {
// if (linesALen < 10000) {
return writeFile(filePath, fastStringArrayJoin(linesA, '\n') + '\n');
// }
// const writer = file.writer();
// The default highwater mark is normally 16384,
// So we make sure direct write to file if the content is
// most likely less than 500 lines
if (linesALen < 500) {
return writeFile(filePath, fastStringArrayJoin(linesA, '\n') + '\n');
}
// for (let i = 0; i < linesALen; i++) {
// writer.write(linesA[i]);
// writer.write('\n');
// }
// return writer.end();
const writeStream = fs.createWriteStream(filePath);
for (let i = 0; i < linesALen; i++) {
let p = asyncWriteToStream(writeStream, linesA[i]);
// eslint-disable-next-line no-await-in-loop -- stream high water mark
if (p) await p;
p = asyncWriteToStream(writeStream, '\n');
// eslint-disable-next-line no-await-in-loop -- stream high water mark
if (p) await p;
}
await asyncWriteToStream(writeStream, '\n');
writeStream.end();
});
}