ArcanistUpgradeWorkflow.php
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ArcanistUpgradeWorkflow.php
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	<?php

	/**
	* Upgrade arcanist itself.
	*
	* @group workflow
	*/
	final class ArcanistUpgradeWorkflow extends ArcanistBaseWorkflow {

	public function getWorkflowName() {
	return 'upgrade';
	}

	public function getCommandSynopses() {
	return phutil_console_format(<<<EOTEXT
	upgrade
	EOTEXT
	);
	}

	public function getCommandHelp() {
	return phutil_console_format(<<<EOTEXT
	Supports: cli
	Upgrade arcanist and libphutil to the latest versions.
	EOTEXT
	);
	}

	public function getArguments() {
	return array();
	}

	public function run() {
	$roots = array();
	$roots['libphutil'] = dirname(phutil_get_library_root('phutil'));
	$roots['arcanist'] = dirname(phutil_get_library_root('arcanist'));

	foreach ($roots as $lib => $root) {
	echo "Upgrading {$lib}...\n";

	if (!Filesystem::pathExists($root.'/.git')) {
	throw new ArcanistUsageException(
	"{$lib} must be in its git working copy to be automatically ".
	"upgraded. This copy of {$lib} (in '{$root}') is not in a git ".
	"working copy.");
	}

	$working_copy = ArcanistWorkingCopyIdentity::newFromPath($root);

	$configuration_manager = clone $this->getConfigurationManager();
	$configuration_manager->setWorkingCopyIdentity($working_copy);
	$repository_api = ArcanistRepositoryAPI::newAPIFromConfigurationManager(
	$configuration_manager);

	$this->setRepositoryAPI($repository_api);

	// Require no local changes.
	$this->requireCleanWorkingCopy();

	// Require the library be on master.
	$branch_name = $repository_api->getBranchName();
	if ($branch_name != 'master') {
	throw new ArcanistUsageException(
	"{$lib} must be on branch 'master' to be automatically upgraded. ".
	"This copy of {$lib} (in '{$root}') is on branch '{$branch_name}'.");
	}

	chdir($root);
	try {
	phutil_passthru('git pull --rebase');
	} catch (Exception $ex) {
	phutil_passthru('git rebase --abort');
	throw $ex;
	}
	}

	echo phutil_console_wrap(
	phutil_console_format(
	"Updated! Your copy of arc is now up to date.\n"));

	return 0;
	}

	}

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