51 lines
1.5 KiB
JavaScript
51 lines
1.5 KiB
JavaScript
import { Writable } from 'node:stream';
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const kbytesToBytes = (kbytes)=>kbytes * 1000;
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const bytesToKbytes = (bytes)=>Math.round(bytes / 1000 * 100) / 100;
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const bytesToHumanReadable = (bytes)=>{
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const sizes = [
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'Bytes',
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'KB',
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'MB',
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'GB',
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'TB',
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'PB'
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];
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if (bytes === 0) return '0 Bytes';
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const i = parseInt(`${Math.floor(Math.log(bytes) / Math.log(1000))}`, 10);
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return `${Math.round(bytes / 1000 ** i)} ${sizes[i]}`;
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};
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const streamToBuffer = (stream)=>new Promise((resolve, reject)=>{
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const chunks = [];
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stream.on('data', (chunk)=>{
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chunks.push(chunk);
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});
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stream.on('end', ()=>{
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resolve(Buffer.concat(chunks));
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});
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stream.on('error', reject);
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});
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const getStreamSize = (stream)=>new Promise((resolve, reject)=>{
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let size = 0;
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stream.on('data', (chunk)=>{
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size += Buffer.byteLength(chunk);
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});
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stream.on('close', ()=>resolve(size));
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stream.on('error', reject);
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stream.resume();
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});
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/**
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* Create a writeable Node.js stream that discards received data.
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* Useful for testing, draining a stream of data, etc.
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*/ function writableDiscardStream(options) {
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return new Writable({
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...options,
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write (chunk, encding, callback) {
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setImmediate(callback);
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}
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});
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}
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export { bytesToHumanReadable, bytesToKbytes, getStreamSize, kbytesToBytes, streamToBuffer, writableDiscardStream };
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//# sourceMappingURL=file.mjs.map
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