DiffusionLowLevelMercurialPathsQuery.php
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	<?php

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

	private $commit;
	private $path;

	public function withCommit($commit) {
	$this->commit = $commit;
	return $this;
	}

	public function withPath($path) {
	$this->path = $path;
	return $this;
	}

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

	$has_files = PhutilBinaryAnalyzer::getForBinary('hg')
	->isMercurialFilesCommandAvailable();
	if ($has_files) {
	$hg_paths_command = 'files --print0 --rev %s -I %s';
	} else {
	$hg_paths_command = 'locate --print0 --rev %s -I %s';
	}

	$match_against = trim($path, '/');
	$prefix = trim('./'.$match_against, '/');
	list($entire_manifest) = $repository->execxLocalCommand(
	$hg_paths_command,
	hgsprintf('%s', $commit),
	$prefix);
	return explode("\0", $entire_manifest);
	}

	}