1 files changed, 56 insertions, 0 deletions
diff --git a/src/tools/android/java/com/google/devtools/build/android/ScopedTemporaryDirectory.java b/src/tools/android/java/com/google/devtools/build/android/ScopedTemporaryDirectory.java
new file mode 100644
index 0000000000..684e5a5919
--- /dev/null
+++ b/src/tools/android/java/com/google/devtools/build/android/ScopedTemporaryDirectory.java
@@ -0,0 +1,56 @@
+// Copyright 2016 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;
+
+import java.io.Closeable;
+import java.io.IOException;
+import java.nio.file.FileVisitResult;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.SimpleFileVisitor;
+import java.nio.file.attribute.BasicFileAttributes;
+
+/**
+ * Creates a temporary directory that will be deleted once a scope closes. NOTE: If an error occurs
+ * during deletion, it will just stop rather than try an continue.
+ */
+final class ScopedTemporaryDirectory extends SimpleFileVisitor<Path> implements Closeable {
+
+  private final Path path;
+
+  public ScopedTemporaryDirectory(String prefix) throws IOException {
+    this.path = Files.createTempDirectory(prefix);
+  }
+
+  public Path getPath() {
+    return this.path;
+  }
+
+  @Override
+  public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
+    Files.delete(file);
+    return FileVisitResult.CONTINUE;
+  }
+
+  @Override
+  public FileVisitResult postVisitDirectory(Path dir, IOException exc) throws IOException {
+    Files.delete(dir);
+    return FileVisitResult.CONTINUE;
+  }
+
+  @Override
+  public void close() throws IOException {
+    Files.walkFileTree(path, this);
+  }
+}