1 files changed, 55 insertions, 0 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/analysis/FilesetOutputConfiguredTarget.java b/src/main/java/com/google/devtools/build/lib/analysis/FilesetOutputConfiguredTarget.java
new file mode 100644
index 0000000000..860024d52d
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/analysis/FilesetOutputConfiguredTarget.java
@@ -0,0 +1,55 @@
+// 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.analysis;
+
+import com.google.common.base.Preconditions;
+import com.google.devtools.build.lib.actions.Artifact;
+import com.google.devtools.build.lib.packages.OutputFile;
+import com.google.devtools.build.lib.rules.fileset.FilesetProvider;
+import com.google.devtools.build.lib.vfs.PathFragment;
+
+/**
+ * A configured target for output files generated by {@code Fileset} rules. They are almost the
+ * same thing as output files except that they implement {@link FilesetProvider} so that
+ * {@code Fileset} can figure out the link tree behind them.
+ *
+ * <p>In an ideal world, this would not be needed: Filesets would depend on other Filesets and not
+ * their output directories. However, sometimes a Fileset depends on the output directory of
+ * another Fileset. Thus, we need this hack.
+ */
+public final class FilesetOutputConfiguredTarget extends OutputFileConfiguredTarget
+    implements FilesetProvider {
+  private final Artifact filesetInputManifest;
+  private final PathFragment filesetLinkDir;
+
+  FilesetOutputConfiguredTarget(TargetContext targetContext, OutputFile outputFile,
+      TransitiveInfoCollection generatingRule, Artifact outputArtifact) {
+    super(targetContext, outputFile, generatingRule, outputArtifact);
+    FilesetProvider provider = generatingRule.getProvider(FilesetProvider.class);
+    Preconditions.checkArgument(provider != null);
+    filesetInputManifest = provider.getFilesetInputManifest();
+    filesetLinkDir = provider.getFilesetLinkDir();
+  }
+
+  @Override
+  public Artifact getFilesetInputManifest() {
+    return filesetInputManifest;
+  }
+
+  @Override
+  public PathFragment getFilesetLinkDir() {
+    return filesetLinkDir;
+  }
+}