DiffusionSvnExistsQuery.php
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	<?php

	final class DiffusionSvnExistsQuery extends DiffusionExistsQuery {

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

	list($info) = $repository->execxRemoteCommand(
	'info %s',
	$repository->getRemoteURI());

	$matches = null;
	$exists = false;
	if (preg_match('/^Revision: (\d+)$/m', $info, $matches)) {
	$base_revision = $matches[1];
	$exists = $base_revision >= $request->getCommit();
	}

	return $exists;
	}

	}