1 files changed, 45 insertions, 0 deletions
diff --git a/java/com/google/devtools/build/android/desugar/io/OutputFileProvider.java b/java/com/google/devtools/build/android/desugar/io/OutputFileProvider.java
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index 0000000..e693786
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+++ b/java/com/google/devtools/build/android/desugar/io/OutputFileProvider.java
@@ -0,0 +1,45 @@
+// Copyright 2017 The Bazel Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+package com.google.devtools.build.android.desugar.io;
+
+import com.google.errorprone.annotations.MustBeClosed;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+/** Output file provider allows to write files in directory or jar files. */
+public interface OutputFileProvider extends AutoCloseable {
+
+  /** Filename to use to write out dependency metadata for later consistency checking. */
+  public static final String DESUGAR_DEPS_FILENAME = "META-INF/desugar_deps";
+
+  /**
+   * Copy {@code filename} from {@code inputFileProvider} to this output. If input file provider is
+   * a {@link ZipInputFileProvider} then the metadata of the zip entry are kept.
+   */
+  void copyFrom(String filename, InputFileProvider inputFileProvider) throws IOException;
+
+  /** Write {@code content} in {@code filename} to this output */
+  void write(String filename, byte[] content) throws IOException;
+
+  /** Transform a Path to an {@link OutputFileProvider} */
+  @MustBeClosed
+  public static OutputFileProvider create(Path path) throws IOException {
+    if (Files.isDirectory(path)) {
+      return new DirectoryOutputFileProvider(path);
+    } else {
+      return new ZipOutputFileProvider(path);
+    }
+  }
+}