DrydockRepositoryOperationUpdateWorker.php
b4af57ec51e1stable

DrydockRepositoryOperationUpdateWorker.php
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			<?php

			final class DrydockRepositoryOperationUpdateWorker
			extends DrydockWorker {

			protected function doWork() {
			$operation_phid = $this->getTaskDataValue('operationPHID');

			$hash = PhabricatorHash::digestForIndex($operation_phid);
			$lock_key = 'drydock.operation:'.$hash;

			$lock = PhabricatorGlobalLock::newLock($lock_key)
			->lock(1);

			try {
			$operation = $this->loadOperation($operation_phid);
			$this->handleUpdate($operation);
			} catch (Exception $ex) {
			$lock->unlock();
			throw $ex;
			}

			$lock->unlock();
			}


			private function handleUpdate(DrydockRepositoryOperation $operation) {
			$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 {
			$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);

			// TODO: Some day, do useful things instead of running `git show`.
			list($stdout) = $interface->execx('git show');
			phlog($stdout);
			} 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.
			}

			private function loadWorkingCopyLease(
			DrydockRepositoryOperation $operation) {
			$viewer = $this->getViewer();

			// TODO: This is very similar to leasing in Harbormaster, maybe we can
			// share some of the logic?

			$lease_phid = $operation->getProperty('exec.leasePHID');
			if ($lease_phid) {
			$lease = id(new DrydockLeaseQuery())
			->setViewer($viewer)
			->withPHIDs(array($lease_phid))
			->executeOne();
			if (!$lease) {
			throw new PhabricatorWorkerPermanentFailureException(
			pht(
			'Lease "%s" could not be loaded.',
			$lease_phid));
			}
			} else {
			$working_copy_type = id(new DrydockWorkingCopyBlueprintImplementation())
			->getType();

			$repository = $operation->getRepository();

			$allowed_phids = $repository->getAutomationBlueprintPHIDs();
			$authorizing_phid = $repository->getPHID();

			$lease = DrydockLease::initializeNewLease()
			->setResourceType($working_copy_type)
			->setOwnerPHID($operation->getPHID())
			->setAuthorizingPHID($authorizing_phid)
			->setAllowedBlueprintPHIDs($allowed_phids);

			$map = $this->buildRepositoryMap($operation);

			$lease->setAttribute('repositories.map', $map);

			$task_id = $this->getCurrentWorkerTaskID();
			if ($task_id) {
			$lease->setAwakenTaskIDs(array($task_id));
			}

			$operation
			->setProperty('exec.leasePHID', $lease->getPHID())
			->save();

			$lease->queueForActivation();
			}

			if ($lease->isActivating()) {
			throw new PhabricatorWorkerYieldException(15);
			}

			if (!$lease->isActive()) {
			throw new PhabricatorWorkerPermanentFailureException(
			pht(
			'Lease "%s" never activated.',
			$lease->getPHID()));
			}

			return $lease;
			}

			private function buildRepositoryMap(DrydockRepositoryOperation $operation) {
			$repository = $operation->getRepository();

			$target = $operation->getRepositoryTarget();
			list($type, $name) = explode(':', $target, 2);
			switch ($type) {
			case 'branch':
			$spec = array(
			'branch' => $name,
			);
			break;
			default:
			throw new Exception(
			pht(
			'Unknown repository operation target type "%s" (in target "%s").',
			$type,
			$target));
			}

			$map = array();
			$map[$repository->getCloneName()] = array(
			'phid' => $repository->getPHID(),
			'default' => true,
			) + $spec;

			return $map;
			}
			}

phab/src/applications/drydock/worker/DrydockRepositoryOperationUpdateWorker.phpb4af57ec51e1stable

DrydockRepositoryOperationUpdateWorker.phpView Options

phab/src/applications/drydock/worker/DrydockRepositoryOperationUpdateWorker.php
b4af57ec51e1stable

DrydockRepositoryOperationUpdateWorker.php
View Options