private function renderRevisionAction(PhutilEvent $event)
 {
     $viewer = $event->getUser();
     if (!$this->canUseApplication($viewer)) {
         return null;
     }
     $revision = $event->getValue('object');
     $repository = $revision->getRepository();
     if ($repository === null) {
         return null;
     }
     if ($repository->canPerformAutomation()) {
         $revision_id = $revision->getID();
         $op = new DrydockLandRepositoryOperation();
         $barrier = $op->getBarrierToLanding($viewer, $revision);
         if ($barrier) {
             $can_land = false;
         } else {
             $can_land = true;
         }
         $action = id(new PhabricatorActionView())->setName(pht('Land Revision'))->setIcon('fa-fighter-jet')->setHref("/differential/revision/operation/{$revision_id}/")->setWorkflow(true)->setDisabled(!$can_land);
         $this->addActionMenuItems($event, $action);
     }
     $strategies = id(new PhutilClassMapQuery())->setAncestorClass('DifferentialLandingStrategy')->execute();
     foreach ($strategies as $strategy) {
         $action = $strategy->createMenuItem($viewer, $revision, $repository);
         if ($action == null) {
             continue;
         }
         if ($strategy->isActionDisabled($viewer, $revision, $repository)) {
             $action->setDisabled(true);
         }
         $this->addActionMenuItems($event, $action);
     }
 }
 public function handleRequest(AphrontRequest $request)
 {
     $viewer = $this->getViewer();
     $id = $request->getURIData('id');
     $revision = id(new DifferentialRevisionQuery())->withIDs(array($id))->setViewer($viewer)->needActiveDiffs(true)->executeOne();
     if (!$revision) {
         return new Aphront404Response();
     }
     $detail_uri = "/D{$id}";
     $repository = $revision->getRepository();
     if (!$repository) {
         return $this->rejectOperation($revision, pht('No Repository'), pht('This revision is not associated with a known repository. Only ' . 'revisions associated with a tracked repository can be landed ' . 'automatically.'));
     }
     if (!$repository->canPerformAutomation()) {
         return $this->rejectOperation($revision, pht('No Repository Automation'), pht('The repository this revision is associated with ("%s") is not ' . 'configured to support automation. Configure automation for the ' . 'repository to enable revisions to be landed automatically.', $repository->getMonogram()));
     }
     // TODO: At some point we should allow installs to give "land reviewed
     // code" permission to more users than "push any commit", because it is
     // a much less powerful operation. For now, just require push so this
     // doesn't do anything users can't do on their own.
     $can_push = PhabricatorPolicyFilter::hasCapability($viewer, $repository, DiffusionPushCapability::CAPABILITY);
     if (!$can_push) {
         return $this->rejectOperation($revision, pht('Unable to Push'), pht('You do not have permission to push to the repository this ' . 'revision is associated with ("%s"), so you can not land it.', $repository->getMonogram()));
     }
     $op = new DrydockLandRepositoryOperation();
     // Check for other operations. Eventually this should probably be more
     // general (e.g., it's OK to land to multiple different branches
     // simultaneously) but just put this in as a sanity check for now.
     $other_operations = id(new DrydockRepositoryOperationQuery())->setViewer($viewer)->withObjectPHIDs(array($revision->getPHID()))->withOperationTypes(array($op->getOperationConstant()))->withOperationStates(array(DrydockRepositoryOperation::STATE_WAIT, DrydockRepositoryOperation::STATE_WORK, DrydockRepositoryOperation::STATE_DONE))->execute();
     if ($other_operations) {
         $any_done = false;
         foreach ($other_operations as $operation) {
             if ($operation->isDone()) {
                 $any_done = true;
                 break;
             }
         }
         if ($any_done) {
             return $this->rejectOperation($revision, pht('Already Complete'), pht('This revision has already landed.'));
         } else {
             return $this->rejectOperation($revision, pht('Already In Flight'), pht('This revision is already landing.'));
         }
     }
     if ($request->isFormPost()) {
         // NOTE: The operation is locked to the current active diff, so if the
         // revision is updated before the operation applies nothing sneaky
         // occurs.
         $diff = $revision->getActiveDiff();
         $operation = DrydockRepositoryOperation::initializeNewOperation($op)->setAuthorPHID($viewer->getPHID())->setObjectPHID($revision->getPHID())->setRepositoryPHID($repository->getPHID())->setRepositoryTarget('branch:master')->setProperty('differential.diffPHID', $diff->getPHID());
         $operation->save();
         $operation->scheduleUpdate();
         return id(new AphrontRedirectResponse())->setURI($detail_uri);
     }
     return $this->newDialog()->setTitle(pht('Land Revision'))->appendParagraph(pht('In theory, this will do approximately what `arc land` would do. ' . 'In practice, that is almost certainly not what it will actually ' . 'do.'))->appendParagraph(pht('THIS FEATURE IS EXPERIMENTAL AND DANGEROUS! USE IT AT YOUR ' . 'OWN RISK!'))->addCancelButton($detail_uri)->addSubmitButton(pht('Mutate Repository Unpredictably'));
 }
 public function handleRequest(AphrontRequest $request)
 {
     $viewer = $this->getViewer();
     $id = $request->getURIData('id');
     $revision = id(new DifferentialRevisionQuery())->withIDs(array($id))->setViewer($viewer)->needActiveDiffs(true)->executeOne();
     if (!$revision) {
         return new Aphront404Response();
     }
     $detail_uri = "/D{$id}";
     $op = new DrydockLandRepositoryOperation();
     $barrier = $op->getBarrierToLanding($viewer, $revision);
     if ($barrier) {
         return $this->newDialog()->setTitle($barrier['title'])->appendParagraph($barrier['body'])->addCancelButton($detail_uri);
     }
     $diff = $revision->getActiveDiff();
     $repository = $revision->getRepository();
     $default_ref = $this->loadDefaultRef($repository, $diff);
     if ($default_ref) {
         $v_ref = array($default_ref->getPHID());
     } else {
         $v_ref = array();
     }
     $e_ref = true;
     $errors = array();
     if ($request->isFormPost()) {
         $v_ref = $request->getArr('refPHIDs');
         $ref_phid = head($v_ref);
         if (!strlen($ref_phid)) {
             $e_ref = pht('Required');
             $errors[] = pht('You must select a branch to land this revision onto.');
         } else {
             $ref = $this->newRefQuery($repository)->withPHIDs(array($ref_phid))->executeOne();
             if (!$ref) {
                 $e_ref = pht('Invalid');
                 $errors[] = pht('You must select a branch from this repository to land this ' . 'revision onto.');
             }
         }
         if (!$errors) {
             // NOTE: The operation is locked to the current active diff, so if the
             // revision is updated before the operation applies nothing sneaky
             // occurs.
             $target = 'branch:' . $ref->getRefName();
             $operation = DrydockRepositoryOperation::initializeNewOperation($op)->setAuthorPHID($viewer->getPHID())->setObjectPHID($revision->getPHID())->setRepositoryPHID($repository->getPHID())->setRepositoryTarget($target)->setProperty('differential.diffPHID', $diff->getPHID());
             $operation->save();
             $operation->scheduleUpdate();
             return id(new AphrontRedirectResponse())->setURI($detail_uri);
         }
     }
     $ref_datasource = id(new DiffusionRefDatasource())->setParameters(array('repositoryPHIDs' => array($repository->getPHID()), 'refTypes' => $this->getTargetableRefTypes()));
     $form = id(new AphrontFormView())->setUser($viewer)->appendRemarkupInstructions(pht('In theory, this will do approximately what `arc land` would do. ' . 'In practice, you will have a riveting adventure instead.'))->appendControl(id(new AphrontFormTokenizerControl())->setLabel(pht('Onto Branch'))->setName('refPHIDs')->setLimit(1)->setError($e_ref)->setValue($v_ref)->setDatasource($ref_datasource))->appendRemarkupInstructions(pht('(WARNING) THIS FEATURE IS EXPERIMENTAL AND DANGEROUS! USE IT AT ' . 'YOUR OWN RISK!'));
     return $this->newDialog()->setWidth(AphrontDialogView::WIDTH_FORM)->setTitle(pht('Land Revision'))->setErrors($errors)->appendForm($form)->addCancelButton($detail_uri)->addSubmitButton(pht('Mutate Repository Unpredictably'));
 }