Function nodeCrawl

packages/jest-haste-map/src/crawlers/node.ts:195–241

(options: CrawlerOptions)

}

export async function nodeCrawl(options: CrawlerOptions): Promise<{
  removedFiles: FileData;
  hasteMap: InternalHasteMap;
}> {
  const {
    data,
    extensions,
    forceNodeFilesystemAPI,
    ignore,
    rootDir,
    enableSymlinks,
    roots,
  } = options;

  const useNativeFind = await hasNativeFindSupport(forceNodeFilesystemAPI);

  return new Promise(resolve => {
    const callback = (list: Result) => {
      const files = new Map();
      const removedFiles = new Map(data.files);
      for (const fileData of list) {
        const [filePath, mtime, size] = fileData;
        const relativeFilePath = fastPath.relative(rootDir, filePath);
        const existingFile = data.files.get(relativeFilePath);
        if (existingFile && existingFile[H.MTIME] === mtime) {
          files.set(relativeFilePath, existingFile);
        } else {
          // See ../constants.js; SHA-1 will always be null and fulfilled later.
          files.set(relativeFilePath, ['', mtime, size, 0, '', null]);
        }
        removedFiles.delete(relativeFilePath);
      }
      data.files = files;

      resolve({
        hasteMap: data,
        removedFiles,
      });
    };

    if (useNativeFind) {
      findNative(roots, extensions, ignore, enableSymlinks, callback);
    } else {
      find(roots, extensions, ignore, enableSymlinks, callback);
    }
  });
}