Elegantly handle unbounded file symlink resolutions, e.g. 'a' -> 'b' -> 'a/nope'.

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MOS_MIGRATED_REVID=99337668

1 files changed, 21 insertions, 0 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/skyframe/FileSymlinkException.java b/src/main/java/com/google/devtools/build/lib/skyframe/FileSymlinkException.java
new file mode 100644
index 0000000000..5da3083275
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/skyframe/FileSymlinkException.java
@@ -0,0 +1,21 @@
+// Copyright 2015 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.skyframe;
+
+/** Exception indicating a problem with symlinks. */
+public abstract class FileSymlinkException extends Exception {
+  protected FileSymlinkException(String message) {
+    super(message);
+  }
+}