1 files changed, 7 insertions, 0 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/remote/ContentDigests.java b/src/main/java/com/google/devtools/build/lib/remote/ContentDigests.java
index e7772b23e8..d192598bd2 100644
--- a/src/main/java/com/google/devtools/build/lib/remote/ContentDigests.java
+++ b/src/main/java/com/google/devtools/build/lib/remote/ContentDigests.java
@@ -16,6 +16,8 @@ package com.google.devtools.build.lib.remote;
 
 import com.google.common.hash.HashCode;
 import com.google.common.hash.Hashing;
+import com.google.devtools.build.lib.actions.ActionInput;
+import com.google.devtools.build.lib.actions.ActionInputFileCache;
 import com.google.devtools.build.lib.concurrent.ThreadSafety.ThreadSafe;
 import com.google.devtools.build.lib.remote.RemoteProtocol.Action;
 import com.google.devtools.build.lib.remote.RemoteProtocol.ContentDigest;
@@ -81,6 +83,11 @@ public final class ContentDigests {
     return b.build();
   }
 
+  public static ContentDigest getDigestFromInputCache(ActionInput input, ActionInputFileCache cache)
+      throws IOException {
+    return buildDigest(cache.getDigest(input), cache.getSizeInBytes(input));
+  }
+
   public static String toHexString(ContentDigest digest) {
     return HashCode.fromBytes(digest.getDigest().toByteArray()).toString();
   }