igir/dist/packages/torrentzip/src/zstdNonThreadedCompressTransform.js

🕹 A zero-setup ROM collection manager that sorts, filters, extracts or archives, patches, and reports on collections of any size on any OS.

import stream from 'node:stream';
import zstd from '../../zstd-1.5.5/index.js';
/**
 * A Transform stream that compresses data using zstd synchronous compression.
 */
export default class ZstdNonThreadedCompressTransform extends stream.Transform {
    chunks = [];
    /**
     * Buffer all read file data.
     */
    _transform(chunk, _encoding, callback) {
        this.chunks.push(chunk);
        callback();
    }
    /**
     * Compress all file data in a single call.
     */
    _flush(callback) {
        this.push(zstd.compressNonThreaded(Buffer.concat(this.chunks), 19));
        callback();
    }
}