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WaitForPreviousBuildStepImplementation.php
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Tue, Feb 4, 10:27

WaitForPreviousBuildStepImplementation.php
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<?php
final class WaitForPreviousBuildStepImplementation
extends BuildStepImplementation {
public function getName() {
return pht('Wait for Previous Commits to Build');
}
public function getGenericDescription() {
return pht(
'Wait for previous commits to finish building the current plan '.
'before continuing.');
}
public function getDescription() {
return pht(
'Wait for previous commits to finish building the current plan '.
'before continuing.');
}
public function execute(
HarbormasterBuild $build,
HarbormasterBuildTarget $build_target) {
// We can only wait when building against commits.
$buildable = $build->getBuildable();
$object = $buildable->getBuildableObject();
if (!($object instanceof PhabricatorRepositoryCommit)) {
return;
}
// We are blocked until all previous builds finish.
$build->setBuildStatus(HarbormasterBuild::STATUS_WAITING);
$build->save();
// Block until all previous builds of the same build plan have
// finished.
$plan = $build->getBuildPlan();
$log = null;
$log_start = null;
$blockers = $this->getBlockers($object, $plan, $build);
while (count($blockers) > 0) {
if ($build->checkForCancellation()) {
if ($log !== null) {
$log->finalize($log_start);
}
return;
}
if ($log === null) {
$log = $build->createLog($build_target, "waiting", "blockers");
$log_start = $log->start();
}
$log->append("Blocked by: ".implode(",", $blockers)."\n");
sleep(1);
$blockers = $this->getBlockers($object, $plan, $build);
}
if ($log !== null) {
$log->finalize($log_start);
}
// Move back into building status.
$build->setBuildStatus(HarbormasterBuild::STATUS_BUILDING);
$build->save();
}
private function getBlockers(
PhabricatorRepositoryCommit $commit,
HarbormasterBuildPlan $plan,
HarbormasterBuild $source) {
$call = new ConduitCall(
'diffusion.commitparentsquery',
array(
'commit' => $commit->getCommitIdentifier(),
'callsign' => $commit->getRepository()->getCallsign()
));
$call->setUser(PhabricatorUser::getOmnipotentUser());
$parents = $call->execute();
$parents = id(new DiffusionCommitQuery())
->setViewer(PhabricatorUser::getOmnipotentUser())
->withRepository($commit->getRepository())
->withIdentifiers($parents)
->execute();
$blockers = array();
$build_objects = array();
foreach ($parents as $parent) {
if (!$parent->isImported()) {
$blockers[] = pht('Commit %s', $parent->getCommitIdentifier());
} else {
$build_objects[] = $parent->getPHID();
}
}
$buildables = id(new HarbormasterBuildableQuery())
->setViewer(PhabricatorUser::getOmnipotentUser())
->withBuildablePHIDs($build_objects)
->execute();
$buildable_phids = mpull($buildables, 'getPHID');
$builds = id(new HarbormasterBuildQuery())
->setViewer(PhabricatorUser::getOmnipotentUser())
->withBuildablePHIDs($buildable_phids)
->withBuildPlanPHIDs(array($plan->getPHID()))
->execute();
foreach ($builds as $build) {
if ($build->isBuilding()) {
$blockers[] = pht('Build %d', $build->getID());
}
}
return $blockers;
}
}

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