Add flag for widget

core/src/main/java/jenkins/model/experimentalflags/ConsoleWidgetUserExperimentalFlag.java

@@ -0,0 +1,49 @@
+/*
+ * The MIT License
+ *
+ * Copyright (c) 2025, Jan Faracik
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+package jenkins.model.experimentalflags;
+
+import edu.umd.cs.findbugs.annotations.Nullable;
+import hudson.Extension;
+import org.kohsuke.accmod.Restricted;
+import org.kohsuke.accmod.restrictions.NoExternalUse;
+
+@Extension
+@Restricted(NoExternalUse.class)
+public class ConsoleWidgetUserExperimentalFlag extends BooleanUserExperimentalFlag {
+    public ConsoleWidgetUserExperimentalFlag() {
+        super("console-widget.flag");
+    }
+
+    @Override
+    public String getDisplayName() {
+        return "Show Console Output on build pages";
+    }
+
+    @Nullable
+    @Override
+    public String getShortDescription() {
+        return "Shows the Console Output as a widget on build pages.";
+    }
+}

core/src/main/resources/hudson/model/Run/index.jelly

@@ -43,7 +43,10 @@ THE SOFTWARE.
         <t:editableDescription permission="${it.UPDATE}" hideButton="true"/>
       </div>
 
-      <st:include page="consolewidget.jelly" />
+      <l:userExperimentalFlag var="showConsoleWidget" flagClassName="jenkins.model.experimentalflags.ConsoleWidgetUserExperimentalFlag" />
+      <j:if test="${showConsoleWidget}">
+        <st:include page="console.jelly" from="${h.getConsoleProvider(it)}" optional="true" />
+      </j:if>
 
       <div style="float:right; z-index: 1; position:relative; margin-left: 1em">
         <div style="margin-top:1em">