[fix] 'Loading: 0 packages loaded' message prohibition

src/main/java/org/jetbrains/bsp/bazel/server/bep/BepServer.java

@@ -42,6 +42,9 @@ public class BepServer extends PublishBuildEventGrpc.PublishBuildEventImplBase {
 
   private static final Logger LOGGER = LogManager.getLogger(BepServer.class);
 
+  private static final List<String> EXCLUDED_PROGRESS_MESSAGES =
+      List.of("Loading: 0 packages loaded");
+
   private static final int URI_PREFIX_LENGTH = 7;
 
   private final BuildClient bspClient;
@@ -257,7 +260,7 @@ private void consumeProgressEvent(BuildEventStreamProtos.Progress progress) {
         .map(this::createParamsFromEntry)
         .forEach(bspClient::onBuildPublishDiagnostics);
 
-    buildClientLogger.logMessage(progress.getStderr().trim());
+    logProgress(progress);
   }
 
   private PublishDiagnosticsParams createParamsFromEntry(
@@ -272,6 +275,18 @@ private PublishDiagnosticsParams createParamsFromEntry(
         false);
   }
 
+  private void logProgress(BuildEventStreamProtos.Progress progress) {
+    String progressMessage = progress.getStderr().trim();
+
+    if (shouldMessageBeLogged(progressMessage)) {
+      buildClientLogger.logMessage(progressMessage);
+    }
+  }
+
+  private boolean shouldMessageBeLogged(String message) {
+    return EXCLUDED_PROGRESS_MESSAGES.stream().noneMatch(message::startsWith);
+  }
+
   public Map<String, Set<Uri>> getOutputGroupPaths() {
     return outputGroupPaths;
   }