DiffusionMercurialRequest.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.
	*/

	/**
	* @group diffusion
	*/
	final class DiffusionMercurialRequest extends DiffusionRequest {

	protected function getSupportsBranches() {
	return true;
	}

	protected function didInitialize() {
	return;
	}

	public function getBranch() {
	if ($this->branch) {
	return $this->branch;
	}
	if ($this->repository) {
	return $this->repository->getDetail('default-branch', 'default');
	}
	throw new Exception("Unable to determine branch!");
	}

	public function getCommit() {
	if ($this->commit) {
	return $this->commit;
	}
	return $this->getBranch();
	}

	public function getStableCommitName() {
	if (!$this->stableCommitName) {
	if ($this->commit) {
	$this->stableCommitName = $this->commit;
	} else {
	list($this->stableCommitName) = $this->repository->execxLocalCommand(
	'log --template=%s --rev %s',
	'{node}',
	$this->getBranch());
	}
	}
	return $this->stableCommitName;
	}

	}