Function copyDir

lib/internal/fs/cp/cp-sync.js:140–186

(src, dest, opts, mkDir, srcMode)

}

function copyDir(src, dest, opts, mkDir, srcMode) {
  if (!opts.filter) {
    // The caller didn't provide a js filter function, in this case
    // we can run the whole function faster in C++
    // TODO(dario-piotrowicz): look into making cpSyncCopyDir also accept the potential filter function
    return fsBinding.cpSyncCopyDir(src, dest,
                                   opts.force,
                                   opts.dereference,
                                   opts.errorOnExist,
                                   opts.verbatimSymlinks,
                                   opts.preserveTimestamps);
  }

  if (mkDir) {
    mkdirSync(dest);
  }

  const dir = opendirSync(src);

  try {
    let dirent;

    while ((dirent = dir.readSync()) !== null) {
      const { name } = dirent;
      const srcItem = join(src, name);
      const destItem = join(dest, name);
      let shouldCopy = true;

      if (opts.filter) {
        shouldCopy = opts.filter(srcItem, destItem);
        if (isPromise(shouldCopy)) {
          throw new ERR_INVALID_RETURN_VALUE('boolean', 'filter', shouldCopy);
        }
      }

      if (shouldCopy) {
        getStats(srcItem, destItem, opts);
      }
    }
  } finally {
    dir.closeSync();

    if (srcMode !== undefined) {
      setDestMode(dest, srcMode);
    }
  }
}

// TODO(@anonrig): Move this function to C++.
function onLink(destStat, src, dest, verbatimSymlinks) {