PhabricatorFilesManagementEnginesWorkflow.php
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	<?php

	final class PhabricatorFilesManagementEnginesWorkflow
	extends PhabricatorFilesManagementWorkflow {

	public function didConstruct() {
	$this
	->setName('engines')
	->setSynopsis('List available storage engines.')
	->setArguments(array());
	}

	public function execute(PhutilArgumentParser $args) {
	$console = PhutilConsole::getConsole();

	$engines = PhabricatorFile::buildAllEngines();
	if (!$engines) {
	throw new Exception("No storage engines are available.");
	}

	foreach ($engines as $engine) {
	$console->writeOut(
	"%s\n",
	$engine->getEngineIdentifier());
	}

	return 0;
	}

	}