DiffusionLowLevelMercurialBranchesQuery.php
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	<?php

	/**
	* Execute and parse a low-level Mercurial branches query using `hg branches`.
	*/
	final class DiffusionLowLevelMercurialBranchesQuery
	extends DiffusionLowLevelQuery {

	protected function executeQuery() {
	$repository = $this->getRepository();

	// NOTE: `--debug` gives us 40-character hashes.
	list($stdout) = $repository->execxLocalCommand(
	'--debug branches');
	$stdout = PhabricatorRepository::filterMercurialDebugOutput($stdout);

	$branches = array();

	$lines = ArcanistMercurialParser::parseMercurialBranches($stdout);
	foreach ($lines as $name => $spec) {
	$branches[] = id(new DiffusionRepositoryRef())
	->setShortName($name)
	->setCommitIdentifier($spec['rev']);
	}

	return $branches;
	}

	}