private function handleUpdate(DrydockRepositoryOperation $operation)
{
$viewer = $this->getViewer();
$operation_state = $operation->getOperationState();
switch ($operation_state) {
case DrydockRepositoryOperation::STATE_WAIT:
$operation->setOperationState(DrydockRepositoryOperation::STATE_WORK)->save();
break;
case DrydockRepositoryOperation::STATE_WORK:
break;
case DrydockRepositoryOperation::STATE_DONE:
case DrydockRepositoryOperation::STATE_FAIL:
// No more processing for these requests.
return;
}
// TODO: We should probably check for other running operations with lower
// IDs and the same repository target and yield to them here? That is,
// enforce sequential evaluation of operations against the same target so
// that if you land "A" and then land "B", we always finish "A" first.
// For now, just let stuff happen in any order. We can't lease until
// we know we're good to move forward because we might deadlock if we do:
// we're waiting for another operation to complete, and that operation is
// waiting for a lease we're holding.
try {
$operation->getImplementation()->setViewer($viewer);
$lease = $this->loadWorkingCopyLease($operation);
$interface = $lease->getInterface(DrydockCommandInterface::INTERFACE_TYPE);
// No matter what happens here, destroy the lease away once we're done.
$lease->releaseOnDestruction(true);
$operation->applyOperation($interface);
} catch (PhabricatorWorkerYieldException $ex) {
throw $ex;
} catch (Exception $ex) {
$operation->setOperationState(DrydockRepositoryOperation::STATE_FAIL)->save();
throw $ex;
}
$operation->setOperationState(DrydockRepositoryOperation::STATE_DONE)->save();
// TODO: Once we have sequencing, we could awaken the next operation
// against this target after finishing or failing.
}