API to supersede components if not required

src/main/java/com/cloudbees/jenkins/support/SupportPlugin.java

@@ -598,6 +598,10 @@ private static List<Content> appendManifestContents(
         ContentContainer contentsContainer = new ContentContainer(contentFilter, components);
         for (Component component : components) {
             try {
+                if (components.stream().anyMatch(c -> c.supersedes(component))) {
+                    continue;
+                }
+
                 manifest.append("  * ").append(component.getDisplayName()).append("\n\n");
                 LOGGER.log(Level.FINE, "Start processing " + component.getDisplayName());
                 long startTime = System.currentTimeMillis();

src/main/java/com/cloudbees/jenkins/support/api/Component.java

@@ -153,6 +153,14 @@ public ComponentCategory getCategory() {
         return ComponentCategory.UNCATEGORIZED;
     }
 
+    /**
+     * Returns true if a component is superseded by this component.
+     * useful if we write a component that makes another one obsolete.
+     */
+    public boolean supersedes(Component component) {
+        return false;
+    }
+
     /**
      * Categories supported by this version of support-core
      *

src/test/java/com/cloudbees/jenkins/support/SupportPluginTest.java

@@ -103,4 +103,61 @@ public long getTime() throws IOException {
         assertNotNull(zip.getEntry("about.md"));
         assertNotNull(zip.getEntry("nodes.md"));
     }
+
+    /**
+     * Test that a component can supersede another component.
+     * We are superseding AboutJenkins and BuildQueue components.
+     * even if is added to the list of components to create.
+     * It will not add its files to the bundle
+     */
+    @Test
+    public void testSupersedesComponent() throws Exception {
+        List<Component> components = Arrays.asList(
+                new Component() {
+                    @NonNull
+                    @Override
+                    public Set<Permission> getRequiredPermissions() {
+                        return Collections.singleton(Jenkins.ADMINISTER);
+                    }
+
+                    @NonNull
+                    @Override
+                    public String getDisplayName() {
+                        return "Test Component";
+                    }
+
+                    @Override
+                    public boolean supersedes(Component component) {
+                        return Set.of(AboutJenkins.class, BuildQueue.class).contains(component.getClass());
+                    }
+
+                    @Override
+                    public void addContents(@NonNull Container container) {
+                        container.add(new Content("test/testWriteBundleWithJenkinsRule.md") {
+                            @Override
+                            public void writeTo(OutputStream os) throws IOException {
+                                os.write("test content".getBytes(StandardCharsets.UTF_8));
+                            }
+                        });
+                    }
+                },
+                ExtensionList.lookup(Component.class).get(AboutJenkins.class),
+                ExtensionList.lookup(Component.class).get(BuildQueue.class),
+                ExtensionList.lookup(Component.class).get(SystemProperties.class));
+
+        File bundleFile = temp.newFile();
+        try (OutputStream os = Files.newOutputStream(bundleFile.toPath())) {
+            SupportPlugin.writeBundle(os, components);
+        }
+
+        ZipFile zip = new ZipFile(bundleFile);
+        assertNotNull(zip.getEntry("test/testWriteBundleWithJenkinsRule.md"));
+        assertNotNull(zip.getEntry("manifest.md"));
+        assertNotNull(zip.getEntry("nodes/master/system.properties"));
+
+        // Assert null for AboutJenkins.class, BuildQueue.class components
+        assertNull(zip.getEntry("buildqueue.md"));
+        assertNull(zip.getEntry("about.md"));
+        assertNull(zip.getEntry("nodes.md"));
+    }
 }