@J2ktIncompatible
@GwtIncompatible
@J2ObjCIncompatible // java.nio.file
@ElementTypesAreNonnullByDefault
@IgnoreJRERequirement // Users will use this only if they're already using Path.
public final class MoreFiles {

  private MoreFiles() {}

  /**
   * Returns a view of the given {@code path} as a {@link ByteSource}.
   *
   * <p>Any {@linkplain OpenOption open options} provided are used when opening streams to the file

 * @author Colin Decker
 */
@J2ktIncompatible
@GwtIncompatible
@J2ObjCIncompatible // java.nio.file
@ElementTypesAreNonnullByDefault
public final class MoreFiles {

  private MoreFiles() {}

  /**
   * Returns a view of the given {@code path} as a {@link ByteSource}.
   *
   * <p>Any {@linkplain OpenOption open options} provided are used when opening streams to the file

    assertEquals("gz", MoreFiles.getFileExtension(FS.getPath("blah.tar.gz")));
    assertEquals("", MoreFiles.getFileExtension(root()));
    assertEquals("", MoreFiles.getFileExtension(FS.getPath(".")));
    assertEquals("", MoreFiles.getFileExtension(FS.getPath("..")));
    assertEquals("", MoreFiles.getFileExtension(FS.getPath("...")));

    assertEquals("gz", MoreFiles.getFileExtension(FS.getPath("blah.tar.gz")));
    assertEquals("", MoreFiles.getFileExtension(root()));
    assertEquals("", MoreFiles.getFileExtension(FS.getPath(".")));
    assertEquals("", MoreFiles.getFileExtension(FS.getPath("..")));
    assertEquals("", MoreFiles.getFileExtension(FS.getPath("...")));

      Path file = createFile();
      if (initialBytes != null) {
        java.nio.file.Files.write(file, initialBytes);
        return MoreFiles.asByteSink(file, StandardOpenOption.APPEND);
      }
      return MoreFiles.asByteSink(file);
    }

    @Override
    public byte[] getExpected(byte[] bytes) {
      if (initialBytes == null) {
        return checkNotNull(bytes);

import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Provides utility methods for working with {@linkplain File files}.
 *
 * <p>{@link java.nio.file.Path} users will find similar utilities in {@link MoreFiles} and the
 * JDK's {@link java.nio.file.Files} class.
 *
 * @author Chris Nokleberg
 * @author Colin Decker
 * @since 1.0
 */
@J2ktIncompatible
@GwtIncompatible
@ElementTypesAreNonnullByDefault

import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Provides utility methods for working with {@linkplain File files}.
 *
 * <p>{@link java.nio.file.Path} users will find similar utilities in {@link MoreFiles} and the
 * JDK's {@link java.nio.file.Files} class.
 *
 * @author Chris Nokleberg
 * @author Colin Decker
 * @since 1.0
 */
@J2ktIncompatible
@GwtIncompatible
@ElementTypesAreNonnullByDefault

import static com.google.common.base.StandardSystemProperty.OS_NAME;
import static com.google.common.base.StandardSystemProperty.PATH_SEPARATOR;
import static com.google.common.io.MoreFiles.deleteRecursively;
import static com.google.common.truth.Truth.assertThat;
import static java.nio.charset.StandardCharsets.US_ASCII;
import static java.nio.file.Files.createDirectory;