Function downloadToPath has 39 lines of code (exceeds 25 allowed). Consider refactoring.

Open

  async downloadToPath(filePath: string): Promise<File> {
    if (await fsPoly.exists(this.getFilePath())) {
      return this;
    }

Function parseSourceMaterialDatabase has 37 lines of code (exceeds 25 allowed). Consider refactoring.

Open

  private async parseSourceMaterialDatabase(
    datFile: File,
    fileContents: string,
  ): Promise<DAT | undefined> {
    this.progressBar.logTrace(`${datFile.toString()}: attempting to parse SMDB`);

Function filterGame has 37 lines of code (exceeds 25 allowed). Consider refactoring.

Open

  private filterGame(game: Game): boolean {
    // If any condition evaluates to 'true', then the candidate will be excluded
    return (
      [
        this.options.getFilterRegex() &&

Function save has 36 lines of code (exceeds 25 allowed). Consider refactoring.

Open

  public async save(): Promise<void> {
    try {
      await this.saveMutex.runExclusive(async () => {
        // Clear any existing timeout
        if (this.saveToFileTimeout !== undefined) {

Function hashedRomsWithFiles has 36 lines of code (exceeds 25 allowed). Consider refactoring.

Open

                  releaseCandidate.getRomsWithFiles().map(async (romWithFiles) => {
                    const inputFile = romWithFiles.getInputFile();
                    if (!(inputFile instanceof ArchiveFile)) {
                      return romWithFiles;
                    }

Function trashOrDelete has a Cognitive Complexity of 12 (exceeds 5 allowed). Consider refactoring.

Open

  private async trashOrDelete(filePaths: string[]): Promise<void> {
    // Prefer recycling...
    for (let i = 0; i < filePaths.length; i += Defaults.OUTPUT_CLEANER_BATCH_SIZE) {
      const filePathsChunk = filePaths.slice(i, i + Defaults.OUTPUT_CLEANER_BATCH_SIZE);
      this.progressBar.logInfo(

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Function applyCommandOpen has a Cognitive Complexity of 12 (exceeds 5 allowed). Consider refactoring.

Open

  private async applyCommandOpen(patchFile: FilePoly, targetFile: FilePoly): Promise<void> {
    const multiFile = (await patchFile.readNext(1)).readUInt8();
    if (multiFile > 0) {
      throw new ExpectedError(
        `Multi-file NINJA patches aren't supported: ${this.getFile().toString()}`,

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Function render has 35 lines of code (exceeds 25 allowed). Consider refactoring.

Open

  render(force = false): void {
    this.singleBarFormatted?.getSingleBar().update(this.payload);

    const callback = (): void => {
      // Dequeue all log messages

Function walk has 35 lines of code (exceeds 25 allowed). Consider refactoring.

Open

  static async walk(pathLike: PathLike, callback?: FsWalkCallback): Promise<string[]> {
    let output: string[] = [];

    let entries: fs.Dirent[];
    try {

Function extractEntryToFile has 35 lines of code (exceeds 25 allowed). Consider refactoring.

Open

  async extractEntryToFile(entryPath: string, extractedFilePath: string): Promise<void> {
    const tempDir = await fsPoly.mkdtemp(path.join(Temp.getTempDir(), '7z'));
    try {
      let tempFile = path.join(tempDir, entryPath);
      await new Promise<void>((resolve, reject) => {

Function hashStream has 35 lines of code (exceeds 25 allowed). Consider refactoring.

Open

  public static async hashStream(stream: Stream, checksumBitmask: number): Promise<ChecksumProps> {
    // Not calculating any checksums, do nothing
    if (!checksumBitmask) {
      // WARN(cemmer): this may leave the stream un-drained and therefore some file handles open!
      return {};

Function infer has 34 lines of code (exceeds 25 allowed). Consider refactoring.

Open

  infer(dat: DAT): DAT {
    if (dat.hasParentCloneInfo() && !this.options.getDatIgnoreParentClone()) {
      this.progressBar.logTrace(`${dat.getNameShort()}: DAT has parent/clone info, skipping`);
      return dat;
    }

Function fromFilePoly has 34 lines of code (exceeds 25 allowed). Consider refactoring.

Open

  static async fromFilePoly(patchFile: FilePoly): Promise<VcdiffWindow> {
    const winIndicator = (await patchFile.readNext(1)).readUInt8();
    let sourceSegmentSize = 0;
    let sourceSegmentPosition = 0;
    if (winIndicator & (VcdiffWinIndicator.SOURCE | VcdiffWinIndicator.TARGET)) {

Function scan has 34 lines of code (exceeds 25 allowed). Consider refactoring.

Open

  async scan(): Promise<Patch[]> {
    this.progressBar.logTrace('scanning patch files');
    this.progressBar.setSymbol(ProgressBarSymbol.FILE_SCANNING);
    this.progressBar.reset(0);

Function fromFilePoly has 34 lines of code (exceeds 25 allowed). Consider refactoring.

Open

  static async fromFilePoly(inputRomFile: File, patchFile: FilePoly): Promise<PPFHeader> {
    const header = (await patchFile.readNext(5)).toString();
    if (!header.startsWith(PPFHeader.FILE_SIGNATURE.toString())) {
      throw new ExpectedError(`PPF patch header is invalid: ${patchFile.getPathLike()}`);
    }

Function process has 34 lines of code (exceeds 25 allowed). Consider refactoring.

Open

  process(
    dat: DAT,
    parentsToCandidates: Map<Parent, ReleaseCandidate[]>,
  ): Map<Parent, ReleaseCandidate[]> {
    if (parentsToCandidates.size === 0) {

Function getArchiveEntries has 34 lines of code (exceeds 25 allowed). Consider refactoring.

Open

  async getArchiveEntries(checksumBitmask: number): Promise<ArchiveEntry<this>[]> {
    const archiveEntryPromises: Promise<ArchiveEntry<this>>[] = [];

    // WARN(cemmer): entries in tar archives don't have headers, the entire file has to be read to
    // calculate the CRCs

Function getOrComputeFileHeader has 33 lines of code (exceeds 25 allowed). Consider refactoring.

Open

  async getOrComputeFileHeader(file: File): Promise<ROMHeader | undefined> {
    // NOTE(cemmer): we're explicitly not catching ENOENT errors here, we want it to bubble up
    const stats = await FsPoly.stat(file.getFilePath());
    if (stats.size === 0) {
      // An empty file can't have a header

Function getOrComputeFileSignature has 33 lines of code (exceeds 25 allowed). Consider refactoring.

Open

  async getOrComputeFileSignature(file: File): Promise<FileSignature | undefined> {
    // NOTE(cemmer): we're explicitly not catching ENOENT errors here, we want it to bubble up
    const stats = await FsPoly.stat(file.getFilePath());
    if (stats.size === 0) {
      // An empty file can't have a signature

Function filter has 32 lines of code (exceeds 25 allowed). Consider refactoring.

Open

  filter(dat: DAT): DAT {
    // Return early if there aren't any games
    if (dat.getGames().length === 0) {
      this.progressBar.logTrace(`${dat.getNameShort()}: no games to filter`);
      return dat;