API Deprecate legacy tasks

code/Tasks/MigrateSiteTreeLinkingTask.php

@@ -5,6 +5,7 @@ namespace SilverStripe\CMS\Tasks;
 use SilverStripe\CMS\Model\SiteTree;
 use SilverStripe\Dev\BuildTask;
 use SilverStripe\Dev\Debug;
+use SilverStripe\Dev\Deprecation;
 use SilverStripe\ORM\DataObject;
 use SilverStripe\ORM\DB;
 use SilverStripe\Versioned\Versioned;
@@ -12,6 +13,8 @@ use SilverStripe\Versioned\Versioned;
 /**
  * Updates legacy SiteTree link tracking into new polymorphic many_many relation.
  * This should be done for any site upgrading to 4.2.0
+ *
+ * @deprecated 4.13.0 Will be removed without equivalent functionality to replace it
  */
 class MigrateSiteTreeLinkingTask extends BuildTask
 {
@@ -21,6 +24,15 @@ class MigrateSiteTreeLinkingTask extends BuildTask
 
     protected $description = 'Updates legacy SiteTree link tracking into new polymorphic many_many relation';
 
+    public function __construct()
+    {
+        Deprecation::notice(
+            '4.13.0',
+            'Will be removed without equivalent functionality to replace it',
+            Deprecation::SCOPE_CLASS
+        );
+    }
+
     public function run($request)
     {
         // Ensure legacy table exists

code/Tasks/RemoveOrphanedPagesTask.php

@@ -18,6 +18,7 @@ use SilverStripe\Versioned\Versioned;
 use SilverStripe\Security\Permission;
 use SilverStripe\Security\Security;
 use SilverStripe\View\Requirements;
+use SilverStripe\Dev\Deprecation;
 
 /**
  * Identify "orphaned" pages which point to a parent
@@ -36,6 +37,8 @@ use SilverStripe\View\Requirements;
  * before and after orphan removal.
  *
  * @author Ingo Schommer (<firstname>@silverstripe.com), SilverStripe Ltd.
+ *
+ * @deprecated 4.13.0 Will be removed without equivalent functionality to replace it
  */
 class RemoveOrphanedPagesTask extends Controller
 {
@@ -65,6 +68,15 @@ in the other stage:<br />
 
     protected $orphanedSearchClass = SiteTree::class;
 
+    public function __construct()
+    {
+        Deprecation::notice(
+            '4.13.0',
+            'Will be removed without equivalent functionality to replace it',
+            Deprecation::SCOPE_CLASS
+        );
+    }
+
     protected function init()
     {
         parent::init();

code/Tasks/SiteTreeMaintenanceTask.php

@@ -6,13 +6,26 @@ use SilverStripe\CMS\Model\SiteTree;
 use SilverStripe\Control\Controller;
 use SilverStripe\ORM\DB;
 use SilverStripe\ORM\DataObject;
+use SilverStripe\Dev\Deprecation;
 
+/**
+ * @deprecated 4.13.0 Will be removed without equivalent functionality to replace it
+ */
 class SiteTreeMaintenanceTask extends Controller
 {
     private static $allowed_actions = [
         '*' => 'ADMIN'
     ];
 
+    public function __construct()
+    {
+        Deprecation::notice(
+            '4.13.0',
+            'Will be removed without equivalent functionality to replace it',
+            Deprecation::SCOPE_CLASS
+        );
+    }
+
     public function makelinksunique()
     {
         $table = DataObject::singleton(SiteTree::class)->baseTable();

tests/php/Tasks/MigrateSiteTreeLinkingTaskTest.php

@@ -7,6 +7,7 @@ use SilverStripe\CMS\Tasks\MigrateSiteTreeLinkingTask;
 use SilverStripe\Dev\SapphireTest;
 use SilverStripe\ORM\DataObject;
 use SilverStripe\ORM\DB;
+use SilverStripe\Dev\Deprecation;
 
 class MigrateSiteTreeLinkingTaskTest extends SapphireTest
 {
@@ -34,6 +35,9 @@ class MigrateSiteTreeLinkingTaskTest extends SapphireTest
 
     protected function setUp(): void
     {
+        if (Deprecation::isEnabled()) {
+            $this->markTestSkipped('Test calls deprecated code');
+        }
         parent::setUp();
 
         // Manually bootstrap all Content blocks with soft coded IDs (raw sql to avoid save hooks)

tests/php/Tasks/RemoveOrphanedPagesTaskTest.php

@@ -5,6 +5,7 @@ namespace SilverStripe\CMS\Tests\Tasks;
 use SilverStripe\CMS\Tasks\RemoveOrphanedPagesTask;
 use SilverStripe\Versioned\Versioned;
 use SilverStripe\Dev\FunctionalTest;
+use SilverStripe\Dev\Deprecation;
 
 /**
  * <h2>Fixture tree</h2>
@@ -40,6 +41,9 @@ class RemoveOrphanedPagesTaskTest extends FunctionalTest
 
     protected function setUp(): void
     {
+        if (Deprecation::isEnabled()) {
+            $this->markTestSkipped('Test calls deprecated code');
+        }
         parent::setUp();
 
         $parent1_published = $this->objFromFixture('Page', 'parent1_published');