}
    }

    private void scanDirectory(File directory, ImmutableSet.Builder<ResourceInfo> builder)
        throws IOException {
      Set<File> currentPath = new HashSet<>();
      currentPath.add(directory.getCanonicalFile());
      scanDirectory(directory, "", currentPath, builder);
    }

    /**
     * Recursively scan the given directory, adding resources for each file encountered. Symlinks