Logs info/default log messages to eclipse logs only if tracing is

enabled.

LSP4E by default logs info/default messages to Eclipse logs. But we want
to log info only if tracing is enabled.

see https://github.com/microsoft/copilot-eclipse-feedback/issues/185

Author: raghucssit

com.microsoft.copilot.eclipse.core/src/com/microsoft/copilot/eclipse/core/lsp/CopilotLanguageClient.java

@@ -13,13 +13,16 @@
 import org.eclipse.core.resources.IFile;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.Platform;
 import org.eclipse.core.runtime.Status;
 import org.eclipse.core.runtime.jobs.Job;
 import org.eclipse.e4.core.contexts.EclipseContextFactory;
 import org.eclipse.e4.core.services.events.IEventBroker;
 import org.eclipse.lsp4e.LanguageClientImpl;
 import org.eclipse.lsp4j.ConfigurationItem;
 import org.eclipse.lsp4j.ConfigurationParams;
+import org.eclipse.lsp4j.MessageParams;
+import org.eclipse.lsp4j.MessageType;
 import org.eclipse.lsp4j.ProgressParams;
 import org.eclipse.lsp4j.ShowDocumentParams;
 import org.eclipse.lsp4j.ShowDocumentResult;
@@ -402,4 +405,34 @@ protected IStatus run(IProgressMonitor monitor) {
       return super.showDocument(params);
     }
   }
+
+  @Override
+  public void logMessage(MessageParams message) {
+    if (message == null) {
+      return;
+    }
+
+    MessageType type = message.getType();
+    if (type == null) {
+      return;
+    }
+
+    switch (type) {
+      case Error:
+      case Warning:
+        super.logMessage(message);
+        break;
+      case Info:
+      case Log:
+      default:
+        if (isLsp4eLogTraceEnabled()) {
+          super.logMessage(message);
+        }
+        break;
+    }
+  }
+
+  private boolean isLsp4eLogTraceEnabled() {
+    return Platform.getDebugBoolean("org.eclipse.lsp4e/trace");
+  }
 }