igir/dist/packages/zstd-1.5.5/index.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 module from "node:module";
import os from "node:os";
import stream from "node:stream";
const require2 = module.createRequire(import.meta.url);
class ZstdDecompressStream extends stream.Transform {
  decompressor = new zstd.Decompressor();
  decompressorEnded = false;
  /**
   * Decompress the chunk and emit the result.
   */
  _transform(chunk, _encoding, callback) {
    if (this.decompressorEnded) {
      callback(new Error("cannot decompress after the compressor has been ended"));
      return;
    }
    this.decompressor.decompressChunk(chunk).then((decompressedChunk) => {
      if (decompressedChunk.length > 0) {
        this.push(decompressedChunk);
      }
      callback();
    }).catch(callback);
  }
  /**
   * @param callback Function to call when flushing is complete
   */
  _flush(callback) {
    this.finalizeDecompressor(callback);
  }
  /**
   * Clean up native resources.
   */
  _destroy(err, callback) {
    this.cleanup((cleanupError) => {
      if (cleanupError) {
        callback(cleanupError);
      } else {
        callback(err);
      }
    });
  }
  /**
   * Clean up method to be called when the stream ends.
   */
  cleanup(callback) {
    this.finalizeDecompressor(callback);
  }
  /**
   * Finalize the compressor and emit the final output.
   */
  finalizeDecompressor(callback) {
    if (this.decompressorEnded) {
      callback();
      return;
    }
    this.decompressorEnded = true;
    this.decompressor.end().then((finalData) => {
      if (finalData.length > 0) {
        this.push(finalData);
      }
      callback();
    }).catch(callback);
  }
}
const zstd = (() => {
  try {
    return require2(
      `./addon-zstd-1.5.5/prebuilds/${os.platform()}-${os.arch()}/node.node`
    );
  } catch {
  }
  return require2("./addon-zstd-1.5.5/build/Release/binding.node");
})();
var zstd_1_5_default = {
  ...zstd,
  DecompressStream: ZstdDecompressStream
};
export {
  ZstdDecompressStream,
  zstd_1_5_default as default
};
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