<?php

/*

* This file is part of the PHPBench package

*

* (c) Daniel Leech <daniel@dantleech.com>

*

* For the full copyright and license information, please view the LICENSE

* file that was distributed with this source code.

*

*/

namespace PhpBench\Extensions\XDebug;

use PhpBench\Executor\ExecutionContext;

use RuntimeException;

class XDebugUtil

{

public static function fromEnvironment(): XDebugUtil

{

$xdebugVersion = phpversion('xdebug');

$xdebugUseCompression = ini_get('xdebug.use_compression') === '1';

return new XDebugUtil($xdebugVersion, $xdebugUseCompression);

}

/**

* @var string|false

*/

private $xdebugVersion;

/**

* @var bool

*/

private $xdebugUseCompression;

/**

* @param string|false $xdebugVersion

*/

public function __construct($xdebugVersion, bool $xdebugUseCompression)

{

$this->xdebugVersion = $xdebugVersion;

$this->xdebugUseCompression = $xdebugUseCompression;

}

/**

* @param string $extension

*/

public function filenameFromContext(ExecutionContext $context, $extension = ''): string

{

$name = sprintf(

'%s%s%s',

$context->getClassName(),

$context->getMethodName(),

$context->getParameterSetName()

);

return md5($name) . $extension;

}

public function getCachegrindExtensionOfGeneratedFile(): string

{

$xdebugVersion = $this->discoverXdebugMajorVersion();

if ($xdebugVersion === '3' && $this->xdebugUseCompression) {

return '.cachegrind.gz';

}

return '.cachegrind';

}

public function discoverXdebugMajorVersion(): string

{

if ($this->xdebugVersion === false) {

throw new RuntimeException(

'Xdebug is not installed'

);

}

return substr($this->xdebugVersion, 0, 1);

}

}