1 files changed, 34 insertions, 0 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/actions/PackageRootResolver.java b/src/main/java/com/google/devtools/build/lib/actions/PackageRootResolver.java
new file mode 100644
index 0000000000..90af1361c7
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/actions/PackageRootResolver.java
@@ -0,0 +1,34 @@
+// Copyright 2014 Google Inc. 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.lib.actions;
+
+import com.google.devtools.build.lib.vfs.PathFragment;
+
+import java.util.Map;
+
+import javax.annotation.Nullable;
+
+/**
+ * Represents logic that evaluates the root of the package containing path.
+ */
+public interface PackageRootResolver {
+
+  /**
+   * Returns mapping from execPath to Root. Some roots can equal null if the corresponding
+   * package can't be found. Returns null if for some reason we can't evaluate it.
+   */
+  @Nullable
+  Map<PathFragment, Root> findPackageRoots(Iterable<PathFragment> execPaths);
+}