1 files changed, 42 insertions, 0 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/actions/MissingInputFileException.java b/src/main/java/com/google/devtools/build/lib/actions/MissingInputFileException.java
new file mode 100644
index 0000000000..52f9f2734e
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/actions/MissingInputFileException.java
@@ -0,0 +1,42 @@
+// 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.events.Location;
+
+/**
+ * This exception is thrown during a build when an input file is missing, but the file
+ * is not the input to any action being executed.
+ *
+ * If a missing input file is an input
+ * to an action, an {@link ActionExecutionException} is thrown instead.
+ */
+public class MissingInputFileException extends BuildFailedException {
+  private final Location location;
+
+  public MissingInputFileException(String message, Location location) {
+    super(message);
+    this.location = location;
+  }
+
+  /**
+   * Return a location where this input file is referenced. If there
+   * are multiple such locations, one is chosen arbitrarily. If there
+   * are none, return null.
+   */
+  public Location getLocation() {
+    return location;
+  }
+}