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HarbormasterBuildEngine.php
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			<?php

			/**
			* Moves a build forward by queuing build tasks, canceling or restarting the
			* build, or failing it in response to task failures.
			*/
			final class HarbormasterBuildEngine extends Phobject {

			private $build;
			private $viewer;
			private $newBuildTargets = array();
			private $forceBuildableUpdate;

			public function setForceBuildableUpdate($force_buildable_update) {
			$this->forceBuildableUpdate = $force_buildable_update;
			return $this;
			}

			public function shouldForceBuildableUpdate() {
			return $this->forceBuildableUpdate;
			}

			public function queueNewBuildTarget(HarbormasterBuildTarget $target) {
			$this->newBuildTargets[] = $target;
			return $this;
			}

			public function getNewBuildTargets() {
			return $this->newBuildTargets;
			}

			public function setViewer(PhabricatorUser $viewer) {
			$this->viewer = $viewer;
			return $this;
			}

			public function getViewer() {
			return $this->viewer;
			}

			public function setBuild(HarbormasterBuild $build) {
			$this->build = $build;
			return $this;
			}

			public function getBuild() {
			return $this->build;
			}

			public function continueBuild() {
			$build = $this->getBuild();

			$lock_key = 'harbormaster.build:'.$build->getID();
			$lock = PhabricatorGlobalLock::newLock($lock_key)->lock(15);

			$build->reload();
			$old_status = $build->getBuildStatus();

			try {
			$this->updateBuild($build);
			} catch (Exception $ex) {
			// If any exception is raised, the build is marked as a failure and the
			// exception is re-thrown (this ensures we don't leave builds in an
			// inconsistent state).
			$build->setBuildStatus(HarbormasterBuild::STATUS_ERROR);
			$build->save();

			$lock->unlock();

			$this->releaseAllArtifacts($build);

			throw $ex;
			}

			$lock->unlock();

			// NOTE: We queue new targets after releasing the lock so that in-process
			// execution via `bin/harbormaster` does not reenter the locked region.
			foreach ($this->getNewBuildTargets() as $target) {
			$task = PhabricatorWorker::scheduleTask(
			'HarbormasterTargetWorker',
			array(
			'targetID' => $target->getID(),
			));
			}

			// If the build changed status, we might need to update the overall status
			// on the buildable.
			$new_status = $build->getBuildStatus();
			if ($new_status != $old_status \|\| $this->shouldForceBuildableUpdate()) {
			$this->updateBuildable($build->getBuildable());
			}

			// If we are no longer building for any reason, release all artifacts.
			if (!$build->isBuilding()) {
			$this->releaseAllArtifacts($build);
			}
			}

			private function updateBuild(HarbormasterBuild $build) {
			if (($build->getBuildStatus() == HarbormasterBuild::STATUS_PENDING) \|\|
			($build->isRestarting())) {
			$this->restartBuild($build);
			$build->setBuildStatus(HarbormasterBuild::STATUS_BUILDING);
			$build->save();
			}

			if ($build->isResuming()) {
			$build->setBuildStatus(HarbormasterBuild::STATUS_BUILDING);
			$build->save();
			}

			if ($build->isStopping() && !$build->isComplete()) {
			$build->setBuildStatus(HarbormasterBuild::STATUS_STOPPED);
			$build->save();
			}

			$build->deleteUnprocessedCommands();

			if ($build->getBuildStatus() == HarbormasterBuild::STATUS_BUILDING) {
			$this->updateBuildSteps($build);
			}
			}

			private function restartBuild(HarbormasterBuild $build) {

			// We're restarting the build, so release all previous artifacts.
			$this->releaseAllArtifacts($build);

			// Increment the build generation counter on the build.
			$build->setBuildGeneration($build->getBuildGeneration() + 1);

			// Currently running targets should periodically check their build
			// generation (which won't have changed) against the build's generation.
			// If it is different, they will automatically stop what they're doing
			// and abort.

			// Previously we used to delete targets, logs and artifacts here. Instead
			// leave them around so users can view previous generations of this build.
			}

			private function updateBuildSteps(HarbormasterBuild $build) {
			$targets = id(new HarbormasterBuildTargetQuery())
			->setViewer($this->getViewer())
			->withBuildPHIDs(array($build->getPHID()))
			->withBuildGenerations(array($build->getBuildGeneration()))
			->execute();

			$this->updateWaitingTargets($targets);

			$targets = mgroup($targets, 'getBuildStepPHID');

			$steps = id(new HarbormasterBuildStepQuery())
			->setViewer($this->getViewer())
			->withBuildPlanPHIDs(array($build->getBuildPlan()->getPHID()))
			->execute();

			// Identify steps which are in various states.

			$queued = array();
			$underway = array();
			$waiting = array();
			$complete = array();
			$failed = array();
			foreach ($steps as $step) {
			$step_targets = idx($targets, $step->getPHID(), array());

			if ($step_targets) {
			$is_queued = false;

			$is_underway = false;
			foreach ($step_targets as $target) {
			if ($target->isUnderway()) {
			$is_underway = true;
			break;
			}
			}

			$is_waiting = false;
			foreach ($step_targets as $target) {
			if ($target->isWaiting()) {
			$is_waiting = true;
			break;
			}
			}

			$is_complete = true;
			foreach ($step_targets as $target) {
			if (!$target->isComplete()) {
			$is_complete = false;
			break;
			}
			}

			$is_failed = false;
			foreach ($step_targets as $target) {
			if ($target->isFailed()) {
			$is_failed = true;
			break;
			}
			}
			} else {
			$is_queued = true;
			$is_underway = false;
			$is_waiting = false;
			$is_complete = false;
			$is_failed = false;
			}

			if ($is_queued) {
			$queued[$step->getPHID()] = true;
			}

			if ($is_underway) {
			$underway[$step->getPHID()] = true;
			}

			if ($is_waiting) {
			$waiting[$step->getPHID()] = true;
			}

			if ($is_complete) {
			$complete[$step->getPHID()] = true;
			}

			if ($is_failed) {
			$failed[$step->getPHID()] = true;
			}
			}

			// If any step failed, fail the whole build, then bail.
			if (count($failed)) {
			$build->setBuildStatus(HarbormasterBuild::STATUS_FAILED);
			$build->save();
			return;
			}

			// If every step is complete, we're done with this build. Mark it passed
			// and bail.
			if (count($complete) == count($steps)) {
			$build->setBuildStatus(HarbormasterBuild::STATUS_PASSED);
			$build->save();
			return;
			}

			// Identify all the steps which are ready to run (because all their
			// dependencies are complete).

			$runnable = array();
			foreach ($steps as $step) {
			$dependencies = $step->getStepImplementation()->getDependencies($step);

			if (isset($queued[$step->getPHID()])) {
			$can_run = true;
			foreach ($dependencies as $dependency) {
			if (empty($complete[$dependency])) {
			$can_run = false;
			break;
			}
			}

			if ($can_run) {
			$runnable[] = $step;
			}
			}
			}

			if (!$runnable && !$waiting && !$underway) {
			// This means the build is deadlocked, and the user has configured
			// circular dependencies.
			$build->setBuildStatus(HarbormasterBuild::STATUS_DEADLOCKED);
			$build->save();
			return;
			}

			foreach ($runnable as $runnable_step) {
			$target = HarbormasterBuildTarget::initializeNewBuildTarget(
			$build,
			$runnable_step,
			$build->retrieveVariablesFromBuild());
			$target->save();

			$this->queueNewBuildTarget($target);
			}
			}


			/**
			* Process messages which were sent to these targets, kicking applicable
			* targets out of "Waiting" and into either "Passed" or "Failed".
			*
			* @param list<HarbormasterBuildTarget> List of targets to process.
			* @return void
			*/
			private function updateWaitingTargets(array $targets) {
			assert_instances_of($targets, 'HarbormasterBuildTarget');

			// We only care about messages for targets which are actually in a waiting
			// state.
			$waiting_targets = array();
			foreach ($targets as $target) {
			if ($target->isWaiting()) {
			$waiting_targets[$target->getPHID()] = $target;
			}
			}

			if (!$waiting_targets) {
			return;
			}

			$messages = id(new HarbormasterBuildMessageQuery())
			->setViewer($this->getViewer())
			->withBuildTargetPHIDs(array_keys($waiting_targets))
			->withConsumed(false)
			->execute();

			foreach ($messages as $message) {
			$target = $waiting_targets[$message->getBuildTargetPHID()];

			$new_status = null;
			switch ($message->getType()) {
			case 'pass':
			$new_status = HarbormasterBuildTarget::STATUS_PASSED;
			break;
			case 'fail':
			$new_status = HarbormasterBuildTarget::STATUS_FAILED;
			break;
			}

			if ($new_status !== null) {
			$message->setIsConsumed(true);
			$message->save();

			$target->setTargetStatus($new_status);

			if ($target->isComplete()) {
			$target->setDateCompleted(PhabricatorTime::getNow());
			}

			$target->save();
			}
			}
			}


			/**
			* Update the overall status of the buildable this build is attached to.
			*
			* After a build changes state (for example, passes or fails) it may affect
			* the overall state of the associated buildable. Compute the new aggregate
			* state and save it on the buildable.
			*
			* @param HarbormasterBuild The buildable to update.
			* @return void
			*/
			private function updateBuildable(HarbormasterBuildable $buildable) {
			$viewer = $this->getViewer();

			$lock_key = 'harbormaster.buildable:'.$buildable->getID();
			$lock = PhabricatorGlobalLock::newLock($lock_key)->lock(15);

			$buildable = id(new HarbormasterBuildableQuery())
			->setViewer($viewer)
			->withIDs(array($buildable->getID()))
			->needBuilds(true)
			->executeOne();

			$all_pass = true;
			$any_fail = false;
			foreach ($buildable->getBuilds() as $build) {
			if ($build->getBuildStatus() != HarbormasterBuild::STATUS_PASSED) {
			$all_pass = false;
			}
			if ($build->getBuildStatus() == HarbormasterBuild::STATUS_FAILED \|\|
			$build->getBuildStatus() == HarbormasterBuild::STATUS_ERROR \|\|
			$build->getBuildStatus() == HarbormasterBuild::STATUS_DEADLOCKED) {
			$any_fail = true;
			}
			}

			if ($any_fail) {
			$new_status = HarbormasterBuildable::STATUS_FAILED;
			} else if ($all_pass) {
			$new_status = HarbormasterBuildable::STATUS_PASSED;
			} else {
			$new_status = HarbormasterBuildable::STATUS_BUILDING;
			}

			$old_status = $buildable->getBuildableStatus();
			$did_update = ($old_status != $new_status);
			if ($did_update) {
			$buildable->setBuildableStatus($new_status);
			$buildable->save();
			}

			$lock->unlock();

			// If we changed the buildable status, try to post a transaction to the
			// object about it. We can safely do this outside of the locked region.

			// NOTE: We only post transactions for automatic buildables, not for
			// manual ones: manual builds are test builds, whoever is doing tests
			// can look at the results themselves, and other users generally don't
			// care about the outcome.

			$should_publish = $did_update &&
			$new_status != HarbormasterBuildable::STATUS_BUILDING &&
			!$buildable->getIsManualBuildable();
			if ($should_publish) {
			$object = id(new PhabricatorObjectQuery())
			->setViewer($viewer)
			->withPHIDs(array($buildable->getBuildablePHID()))
			->executeOne();

			if ($object instanceof PhabricatorApplicationTransactionInterface) {
			$template = $object->getApplicationTransactionTemplate();
			if ($template) {
			$template
			->setTransactionType(PhabricatorTransactions::TYPE_BUILDABLE)
			->setMetadataValue(
			'harbormaster:buildablePHID',
			$buildable->getPHID())
			->setOldValue($old_status)
			->setNewValue($new_status);

			$harbormaster_phid = id(new PhabricatorHarbormasterApplication())
			->getPHID();

			$daemon_source = PhabricatorContentSource::newForSource(
			PhabricatorContentSource::SOURCE_DAEMON,
			array());

			$editor = $object->getApplicationTransactionEditor()
			->setActor($viewer)
			->setActingAsPHID($harbormaster_phid)
			->setContentSource($daemon_source)
			->setContinueOnNoEffect(true)
			->setContinueOnMissingFields(true);

			$editor->applyTransactions(
			$object->getApplicationTransactionObject(),
			array($template));
			}
			}
			}
			}

			private function releaseAllArtifacts(HarbormasterBuild $build) {
			$targets = id(new HarbormasterBuildTargetQuery())
			->setViewer(PhabricatorUser::getOmnipotentUser())
			->withBuildPHIDs(array($build->getPHID()))
			->withBuildGenerations(array($build->getBuildGeneration()))
			->execute();

			if (count($targets) === 0) {
			return;
			}

			$target_phids = mpull($targets, 'getPHID');

			$artifacts = id(new HarbormasterBuildArtifactQuery())
			->setViewer(PhabricatorUser::getOmnipotentUser())
			->withBuildTargetPHIDs($target_phids)
			->execute();

			foreach ($artifacts as $artifact) {
			$artifact->release();
			}

			}

			}

phab/src/applications/harbormaster/engine/HarbormasterBuildEngine.phpc31e25d5ceedfeature/testing

HarbormasterBuildEngine.phpView Options

phab/src/applications/harbormaster/engine/HarbormasterBuildEngine.php
c31e25d5ceedfeature/testing

HarbormasterBuildEngine.php
View Options