Make NoBuildEvent an instance of BuildEvent

Not all bazel invocations produce a BuildStartingEvent; in fact, not all
commands include building. Those invocations produce a NoBuildEvent instead.
However, some of those invocations, like "query", might still have important
machine-readable information to report, like errors in BUILD files. So, make
the NoBuildEvent a build event, capable of starting a stream of build events.

Change-Id: I7cab65f029cdc0176ea5c4970308de296fb73177
PiperOrigin-RevId: 159230205

1 files changed, 3 insertions, 6 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/runtime/BuildEventStreamer.java b/src/main/java/com/google/devtools/build/lib/runtime/BuildEventStreamer.java
index 19eafc98fd..74bb12218f 100644
--- a/src/main/java/com/google/devtools/build/lib/runtime/BuildEventStreamer.java
+++ b/src/main/java/com/google/devtools/build/lib/runtime/BuildEventStreamer.java
@@ -326,11 +326,6 @@ public class BuildEventStreamer implements EventHandler {
   public void handle(Event event) {}
 
   @Subscribe
-  public void noBuild(NoBuildEvent event) {
-    close();
-  }
-
-  @Subscribe
   public void buildInterrupted(BuildInterruptedEvent event) {
     abortReason = AbortReason.USER_INTERRUPTED;
   }
@@ -374,7 +369,9 @@ public class BuildEventStreamer implements EventHandler {
       buildEvent(freedEvent);
     }
 
-    if (event instanceof BuildCompleteEvent || event instanceof TestingCompleteEvent) {
+    if (event instanceof BuildCompleteEvent
+        || event instanceof TestingCompleteEvent
+        || event instanceof NoBuildEvent) {
       buildComplete();
     }
   }