BranchInfo.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.
	*/

	/**
	* Holds information about a single git branch, and provides methods
	* for loading and display.
	*/
	final class BranchInfo {

	private $branchName;
	private $currentHead = false;
	private $revisionID = null;
	private $sha1;
	private $status;
	private $commitAuthor;
	private $commitTime;
	private $commitSubject;

	/**
	* Retrives all the branches from the current git repository,
	* and parses their commit messages.
	*
	* @return array a list of BranchInfo objects, one per branch.
	*/
	public static function loadAll(ArcanistGitAPI $api) {
	$branches_raw = $api->getAllBranches();
	$branches = array();
	foreach ($branches_raw as $branch_raw) {
	$branch_info = new BranchInfo($branch_raw['name']);
	$branch_info->setSha1($branch_raw['sha1']);
	if ($branch_raw['current']) {
	$branch_info->setCurrent();
	}
	$branches[] = $branch_info;
	}

	$name_sha1_map = mpull($branches, 'getSha1', 'getName');
	$commits_list = $api->multigetCommitMessages(
	array_unique(array_values($name_sha1_map)),
	"%ct%n%an%n%s%n%b");
	foreach ($branches as $branch) {
	$sha1 = $name_sha1_map[$branch->getName()];
	$branch->setSha1($sha1);
	$branch->parseCommitMessage($commits_list[$sha1]);
	}
	$branches = msort($branches, 'getCommitTime');
	return $branches;
	}

	public function __construct($branch_name) {
	$this->branchName = $branch_name;
	}

	public function setSha1($sha1) {
	$this->sha1 = $sha1;
	return $this;
	}

	public function getSha1() {
	return $this->sha1;
	}

	public function setCurrent() {
	$this->currentHead = true;
	return $this;
	}

	public function isCurrentHead() {
	return $this->currentHead;
	}


	public function setStatus($status) {
	$this->status = $status;
	return $this;
	}

	public function getStatus() {
	return $this->status;
	}

	public function getRevisionID() {
	return $this->revisionID;
	}

	public function getCommitTime() {
	return $this->commitTime;
	}

	public function getCommitSubject() {
	return $this->commitSubject;
	}

	public function getCommitDisplayName() {
	if ($this->revisionID) {
	return 'D'.$this->revisionID.': '.$this->commitSubject;
	} else {
	return $this->commitSubject;
	}
	}

	public function getCommitAuthor() {
	return $this->commitAuthor;
	}

	public function getName() {
	return $this->branchName;
	}

	/**
	* Based on the 'git show' output extracts the commit date, author,
	* subject nad Differential revision .
	* 'Differential Revision:'
	*
	* @param string message output of git show -s --format="format:%ct%n%cn%n%b"
	*/
	public function parseCommitMessage($message) {
	$message_lines = explode("\n", trim($message));
	$this->commitTime = $message_lines[0];
	$this->commitAuthor = $message_lines[1];
	$this->commitSubject = trim($message_lines[2]);
	$this->revisionID =
	ArcanistDifferentialCommitMessage::newFromRawCorpus($message)
	->getRevisionID();
	}

	public function getFormattedName() {
	$res = "";
	if ($this->currentHead) {
	$res = '* ';
	}
	$res .= $this->branchName;
	return phutil_console_format('%s', $res);

	}

	/**
	* Generates a colored status name
	*/
	public function getFormattedStatus() {
	return self::renderColorizedRevisionStatus($this->status);
	}

	/**
	* Assigns a pretty color based on the status
	*/
	private static function getColorForStatus($status) {
	static $status_to_color = array(
	'Closed' => 'cyan',
	'Needs Review' => 'magenta',
	'Needs Revision' => 'red',
	'Accepted' => 'green',
	'No Revision' => 'blue',
	'Abandoned' => 'default',
	);
	return idx($status_to_color, $status, 'default');
	}

	public static function renderColorizedRevisionStatus($status) {
	return phutil_console_format(
	'<fg:'.self::getColorForStatus($status).'>%s</fg>',
	$status);
	}

	}

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