private function loadCoverage(DifferentialChangeset $changeset)
{
$target_phids = $changeset->getDiff()->getBuildTargetPHIDs();
if (!$target_phids) {
return null;
}
$unit = id(new HarbormasterBuildUnitMessage())->loadAllWhere('buildTargetPHID IN (%Ls)', $target_phids);
if (!$unit) {
return null;
}
$coverage = array();
foreach ($unit as $message) {
$test_coverage = $message->getProperty('coverage');
if ($test_coverage === null) {
continue;
}
$coverage_data = idx($test_coverage, $changeset->getFileName());
if (!strlen($coverage_data)) {
continue;
}
$coverage[] = $coverage_data;
}
if (!$coverage) {
return null;
}
return ArcanistUnitTestResult::mergeCoverage($coverage);
}