add --experimental_remote_execute_timeout

src/main/java/com/google/devtools/build/lib/remote/GrpcRemoteExecutor.java

@@ -32,6 +32,7 @@
 import java.util.Iterator;
 import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.concurrent.atomic.AtomicReference;
+import java.util.concurrent.TimeUnit;
 import javax.annotation.Nullable;
 
 /** A remote work executor that uses gRPC for communicating the work, inputs and outputs. */
@@ -57,9 +58,13 @@ public GrpcRemoteExecutor(
   }
 
   private ExecutionBlockingStub execBlockingStub() {
-    return ExecutionGrpc.newBlockingStub(channel)
+    ExecutionBlockingStub stub =  ExecutionGrpc.newBlockingStub(channel)
         .withInterceptors(TracingMetadataUtils.attachMetadataFromContextInterceptor())
         .withCallCredentials(callCredentials);
+        if (options.remoteExecuteTimeout != null){
+          stub = stub.withDeadlineAfter(options.remoteExecuteTimeout.getSeconds(), TimeUnit.SECONDS);
+        }
+        return stub;
   }
 
   private void handleStatus(Status statusProto, @Nullable ExecuteResponse resp) {

src/main/java/com/google/devtools/build/lib/remote/options/RemoteOptions.java

@@ -173,6 +173,19 @@ public final class RemoteOptions extends OptionsBase {
               + " the unit is omitted, the value is interpreted as seconds.")
   public Duration remoteTimeout;
 
+  @Option(
+      name = "experimental_remote_execute_timeout",
+      defaultValue = "null",
+      documentationCategory = OptionDocumentationCategory.REMOTE,
+      effectTags = {OptionEffectTag.UNKNOWN},
+      converter = RemoteTimeoutConverter.class,
+      help =
+          "The maximum amount of time to wait for remote execution's execute response"
+              + " Following units can be"
+              + " used: Days (d), hours (h), minutes (m), seconds (s), and milliseconds (ms). If"
+              + " the unit is omitted, the value is interpreted as seconds.")
+  public Duration remoteExecuteTimeout;
+
   /** Returns the specified duration. Assumes seconds if unitless. */
   public static class RemoteTimeoutConverter implements Converter<Duration> {
     private static final Pattern UNITLESS_REGEX = Pattern.compile("^[0-9]+$");