Add a "--force" argument to "bin/config done"

Summary:
Ref T11922. When we deploy on Saturday I need to rebuild all the cluster indexes, but some instances won't have anything indexed so they won't actually trigger the activity.

Add a `--force` flag that just clears an activity even if the activity is not required.

Test Plan: Ran `bin/config done reindex --force` several times.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T11922

Differential Revision: https://secure.phabricator.com/D16970

src/applications/config/management/PhabricatorConfigManagementDoneWorkflow.php

@@ -10,6 +10,13 @@ final class PhabricatorConfigManagementDoneWorkflow
       ->setSynopsis(pht('Mark a manual upgrade activity as complete.'))
       ->setArguments(
         array(
+          array(
+            'name' => 'force',
+            'short' => 'f',
+            'help' => pht(
+              'Mark activities complete even if there is no outstanding '.
+              'need to complete them.'),
+          ),
           array(
             'name' => 'activities',
             'wildcard' => true,
@@ -18,6 +25,8 @@ final class PhabricatorConfigManagementDoneWorkflow
   }
 
   public function execute(PhutilArgumentParser $args) {
+    $is_force = $args->getArg('force');
+
     $activities = $args->getArg('activities');
     if (!$activities) {
       throw new PhutilArgumentUsageException(
@@ -29,11 +38,19 @@ final class PhabricatorConfigManagementDoneWorkflow
         'activityType = %s',
         $type);
       if (!$activity) {
+        if ($is_force) {
+          echo tsprintf(
+            "%s\n",
+            pht(
+              'Activity "%s" did not need to be marked as complete.',
+              $type));
+        } else {
           throw new PhutilArgumentUsageException(
             pht(
               'Activity "%s" is not currently marked as required, so there '.
               'is no need to complete it.',
               $type));
+        }
       } else {
         $activity->delete();
         echo tsprintf(