How to use

FileUtils

in

de.otto.jlineup.file

public static void deleteDirectory(String path) throws IOException {
  deleteDirectory(Paths.get(path));
}

public static void deleteDirectory(Path path) throws IOException {
  clearDirectory(path.toString());
  Files.deleteIfExists(path);
}

@Test
public void shouldDeleteDirectory() throws IOException {
  //given
  final Path dirToDelete = Files.createTempDirectory("jlineup-fileutils-test");
  Files.createDirectories(dirToDelete.resolve("one/two/three"));
  //when
  deleteDirectory(dirToDelete);
  //then
  assertThat(Files.exists(dirToDelete), is(false));
}

private void createOrClearDirectoryBelowWorkingDir(String workingDirectory, String subDirectory) throws IOException {
  try {
    final String subDirectoryPath = workingDirectory + "/" + subDirectory;
    createDirIfNotExists(subDirectoryPath);
    clearDirectory(subDirectoryPath);
  } catch (IOException e) {
    throw new IOException("Could not create or open " + subDirectory + " directory.", e);
  }
}

@After
public void cleanUp() throws IOException {
  FileUtils.deleteDirectory(tempJLineupDirectory);
}

public static void clearDirectory(String path) throws IOException {
  Path directory = Paths.get(path);
  Files.newDirectoryStream(directory).forEach(file -> {
    try {
      if (Files.isDirectory(file)) {
        clearDirectory(file.toAbsolutePath().toString());
      }
      Files.delete(file);
    } catch (IOException e) {
      throw new UncheckedIOException(e);
    }
  });
}

@After
public void cleanup() throws IOException {
  FileUtils.deleteDirectory(tempDirectory);
}

@Test
public void shouldClearDirectory() throws IOException {
  //given
  final Path dirToClear = Files.createTempDirectory("jlineup-fileutils-test");
  Files.createFile(dirToClear.resolve(Paths.get("test1")));
  Files.createFile(dirToClear.resolve(Paths.get("test2")));
  Files.createFile(dirToClear.resolve(Paths.get("test3")));
  //when
  clearDirectory(dirToClear.toString());
  //then
  assertThat(dirToClear.toFile().list().length, is(0));
  Files.delete(dirToClear);
}