Provide a hacky way to get an ActionInput from BinTools

We have two places in internal code that require an ActionInput for an embedded
tool. The embedded tool is currently not declared as an input to the
corresponding actions, which in turn causes the remote execution to stat the
file directly through SingleBuildFileCache. I'm working on removing
SingleBuildFileCache, so this needs to be solved. This is the quick-and-dirty
fix. A more principled fix might be to check in the relevant tools instead of
embedding them into Bazel, but it's also significantly more work.

PiperOrigin-RevId: 186292203

1 files changed, 9 insertions, 0 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/actions/cache/VirtualActionInput.java b/src/main/java/com/google/devtools/build/lib/actions/cache/VirtualActionInput.java
index c43b0549bd..e4c52747e2 100644
--- a/src/main/java/com/google/devtools/build/lib/actions/cache/VirtualActionInput.java
+++ b/src/main/java/com/google/devtools/build/lib/actions/cache/VirtualActionInput.java
@@ -38,6 +38,15 @@ public interface VirtualActionInput extends ActionInput {
   ByteString getBytes() throws IOException;
 
   /**
+   * Returns the Metadata for this input if available. Null otherwise.
+   *
+   * @throws IOException
+   */
+  default Metadata getMetadata() throws IOException {
+    return null;
+  }
+
+  /**
    * In some cases, we want empty files in the runfiles tree that have no corresponding artifact. We
    * use instances of this class to represent those files.
    */