How to use the hexo-fs.listDirSync function in hexo-fs

}
  if (!args.bucket) {
    args.bucket = process.env.COS_BUCKET
  }
  if (!args.region) {
    args.region = process.env.COS_REGION
  }

  // Check the user's configuration
  if (!checkHexoConfig(args)) {
    log.error('hexo-deployer-cos: config error')
    return
  }

  // Get local files list from Public Directory
  let localFiles = fs.listDirSync(this.public_dir)

  // Create COS object
  let cos = new COS({
    SecretId: args.secretId,
    SecretKey: args.secretKey
  })

  // Bucket's configuration
  const bucketConfig = {
    Bucket: args.bucket,
    Region: args.region
  }

  log.info('Uploading files to COS...')

  return Promise.all(localFiles.map(file => {

return {
    name: matches[1],
    filename,
    path: path.join(basePath, filename)
  };
}

const rootPath = hexo.config.root || '/';
const prismLineNumbersPluginDir = dirResolve('prismjs/plugins/line-numbers');
const prismThemeDir = dirResolve('prismjs/themes');
const extraThemeDir = dirResolve('prism-themes/themes');
const prismMainFile = require.resolve('prismjs');
const standardThemes = fs.listDirSync(prismThemeDir)
  .map(themeFileName => toThemeMap(prismThemeDir, themeFileName));
const extraThemes = fs.listDirSync(extraThemeDir)
  .map(themeFileName => toThemeMap(extraThemeDir, themeFileName));

// Since the regex will not match for the default "prism.css" theme,
// we filter the null theme out and manually add the default theme to the array
const themes = standardThemes.concat(extraThemes).filter(Boolean);
themes.push({
  name: 'default',
  filename: 'prism.css',
  path: path.join(prismThemeDir, 'prism.css')
});

// If prism plugin has not been configured, it cannot be initialized properly.
if (!hexo.config.prism_plugin) {
  throw new Error('`prism_plugin` options should be added to _config.yml file');
}

if (!matches)
    return;

  return {
    name: matches[1],
    filename,
    path: path.join(basePath, filename)
  };
}

const rootPath = hexo.config.root || '/';
const prismLineNumbersPluginDir = dirResolve('prismjs/plugins/line-numbers');
const prismThemeDir = dirResolve('prismjs/themes');
const extraThemeDir = dirResolve('prism-themes/themes');
const prismMainFile = require.resolve('prismjs');
const standardThemes = fs.listDirSync(prismThemeDir)
  .map(themeFileName => toThemeMap(prismThemeDir, themeFileName));
const extraThemes = fs.listDirSync(extraThemeDir)
  .map(themeFileName => toThemeMap(extraThemeDir, themeFileName));

// Since the regex will not match for the default "prism.css" theme,
// we filter the null theme out and manually add the default theme to the array
const themes = standardThemes.concat(extraThemes).filter(Boolean);
themes.push({
  name: 'default',
  filename: 'prism.css',
  path: path.join(prismThemeDir, 'prism.css')
});

// If prism plugin has not been configured, it cannot be initialized properly.
if (!hexo.config.prism_plugin) {
  throw new Error('`prism_plugin` options should be added to _config.yml file');

function getFiles(dir, callback) {
    fs.listDirSync(dir).forEach((filePath) => {
        callback(filePath);
    });
}

function traverseFiles(dir, handle) {
    var files = fs.listDirSync(dir);
    files.forEach(function (filePath) {
        var absPath = pathFn.join(dir, filePath),
            stat = fs.statSync(absPath);
        if (stat.isDirectory()) {
            traverseFiles(absPath, handle);
        } else {
            handle(absPath);
        }
    });
}