testing

DiffusionMercurialCommitParentsQuery.php
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			<?php

			/*
			* Copyright 2012 Facebook, Inc.
			*
			* Licensed under the Apache License, Version 2.0 (the "License");
			* you may not use this file except in compliance with the License.
			* You may obtain a copy of the License at
			*
			* http://www.apache.org/licenses/LICENSE-2.0
			*
			* Unless required by applicable law or agreed to in writing, software
			* distributed under the License is distributed on an "AS IS" BASIS,
			* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
			* See the License for the specific language governing permissions and
			* limitations under the License.
			*/

			final class DiffusionMercurialCommitParentsQuery
			extends DiffusionCommitParentsQuery {

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

			list($stdout) = $repository->execxLocalCommand(
			'log --debug --limit 1 --template={parents} --rev %s',
			$drequest->getStableCommitName());

			$hashes = preg_split('/\s+/', trim($stdout));
			foreach ($hashes as $key => $value) {
			// Mercurial parents look like "23:ad9f769d6f786fad9f76d9a" -- we want
			// to strip out the local rev part.
			list($local, $global) = explode(':', $value);
			$hashes[$key] = $global;

			// With --debug we get 40-character hashes but also get the "000000..."
			// hash for missing parents; ignore it.
			if (preg_match('/^0+$/', $global)) {
			unset($hashes[$key]);
			}
			}

			return self::loadCommitsByIdentifiers($hashes);
			}
			}