PhutilDirectoryFixture.php
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	<?php

	final class PhutilDirectoryFixture {

	protected $path;

	public static function newFromArchive($archive) {
	$obj = self::newEmptyFixture();
	execx(
	'tar -C %s -xzvvf %s',
	$obj->getPath(),
	Filesystem::resolvePath($archive));
	return $obj;
	}

	public static function newEmptyFixture() {
	$obj = new PhutilDirectoryFixture();
	$obj->path = Filesystem::createTemporaryDirectory();
	return $obj;
	}

	private function __construct() {
	// <restricted>
	}

	public function __destruct() {
	Filesystem::remove($this->path);
	}

	public function getPath($to_file = null) {
	return $this->path.'/'.ltrim($to_file, '/');
	}

	public function saveToArchive($path) {
	$tmp = new TempFile();

	execx(
	'tar -C %s -czvvf %s .',
	$this->getPath(),
	$tmp);

	$ok = rename($tmp, Filesystem::resolvePath($path));
	if (!$ok) {
	throw new FilesystemException($path, pht('Failed to overwrite file.'));
	}

	return $this;
	}

	}