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phab/src/applications/differential/controller/DifferentialRevisionLandController.php
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DifferentialRevisionLandController.php
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<?php
final class DifferentialRevisionLandController extends DifferentialController {
private $revisionID;
private $strategyClass;
private $pushStrategy;
public function willProcessRequest(array $data) {
$this->revisionID = $data['id'];
$this->strategyClass = $data['strategy'];
}
public function processRequest() {
$request = $this->getRequest();
$viewer = $request->getUser();
$revision_id = $this->revisionID;
$revision = id(new DifferentialRevisionQuery())
->withIDs(array($revision_id))
->setViewer($viewer)
->executeOne();
if (!$revision) {
return new Aphront404Response();
}
if (is_subclass_of($this->strategyClass, 'DifferentialLandingStrategy')) {
$this->pushStrategy = newv($this->strategyClass, array());
} else {
throw new Exception(
"Strategy type must be a valid class name and must subclass ".
"DifferentialLandingStrategy. ".
"'{$this->strategyClass}' is not a subclass of ".
"DifferentialLandingStrategy.");
}
if ($request->isDialogFormPost()) {
$response = null;
$text = '';
try {
$response = $this->attemptLand($revision, $request);
$title = pht('Success!');
$text = pht('Revision was successfully landed.');
} catch (Exception $ex) {
$title = pht('Failed to land revision');
if ($ex instanceof PhutilProxyException) {
$text = hsprintf(
'%s:<br><pre>%s</pre>',
$ex->getMessage(),
$ex->getPreviousException()->getMessage());
} else {
$text = phutil_tag('pre', array(), $ex->getMessage());
}
$text = id(new AphrontErrorView())
->appendChild($text);
}
if ($response instanceof AphrontDialogView) {
$dialog = $response;
} else {
$dialog = id(new AphrontDialogView())
->setUser($viewer)
->setTitle($title)
->appendChild(phutil_tag('p', array(), $text))
->addCancelButton('/D'.$revision_id, pht('Done'));
}
return id(new AphrontDialogResponse())->setDialog($dialog);
}
$is_disabled = $this->pushStrategy->isActionDisabled(
$viewer,
$revision,
$revision->getRepository());
if ($is_disabled) {
if (is_string($is_disabled)) {
$explain = $is_disabled;
} else {
$explain = pht('This action is not currently enabled.');
}
$dialog = id(new AphrontDialogView())
->setUser($viewer)
->setTitle(pht("Can't land revision"))
->appendChild($explain)
->addCancelButton('/D'.$revision_id);
return id(new AphrontDialogResponse())->setDialog($dialog);
}
$prompt = hsprintf('%s<br><br>%s',
pht(
'This will squash and rebase revision %s, and push it to '.
'the default / master branch.',
$revision_id),
pht('It is an experimental feature and may not work.'));
$dialog = id(new AphrontDialogView())
->setUser($viewer)
->setTitle(pht('Land Revision %s?', $revision_id))
->appendChild($prompt)
->setSubmitURI($request->getRequestURI())
->addSubmitButton(pht('Land it!'))
->addCancelButton('/D'.$revision_id);
return id(new AphrontDialogResponse())->setDialog($dialog);
}
private function attemptLand($revision, $request) {
$status = $revision->getStatus();
if ($status != ArcanistDifferentialRevisionStatus::ACCEPTED) {
throw new Exception('Only Accepted revisions can be landed.');
}
$repository = $revision->getRepository();
if ($repository === null) {
throw new Exception('revision is not attached to a repository.');
}
$can_push = PhabricatorPolicyFilter::hasCapability(
$request->getUser(),
$repository,
DiffusionCapabilityPush::CAPABILITY);
if (!$can_push) {
throw new Exception(
pht('You do not have permission to push to this repository.'));
}
$lock = $this->lockRepository($repository);
try {
$response = $this->pushStrategy->processLandRequest(
$request,
$revision,
$repository);
} catch (Exception $e) {
$lock->unlock();
throw $e;
}
$lock->unlock();
return $response;
}
private function lockRepository($repository) {
$lock_name = __CLASS__.':'.($repository->getCallsign());
$lock = PhabricatorGlobalLock::newLock($lock_name);
$lock->lock();
return $lock;
}
}
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