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<?php
/**
* @see https://github.com/laminas/laminas-component-installer for the canonical source repository
* @copyright https://github.com/laminas/laminas-component-installer/blob/master/COPYRIGHT.md
* @license https://github.com/laminas/laminas-component-installer/blob/master/LICENSE.md New BSD License
*/
namespace Laminas\ComponentInstaller\ConfigDiscovery;
use function file_get_contents;
use function is_dir;
use function is_file;
use function preg_match;
use function sprintf;
abstract class AbstractDiscovery implements DiscoveryInterface
{
/**
* Configuration file to look for.
*
* Implementations MUST overwite this.
*
* @var string
*/
protected $configFile;
/**
* Expected pattern to match if the configuration file exists.
*
* Implementations MUST overwrite this.
*
* @var string
*/
protected $expected;
/**
* Constructor
*
* Optionally specify project directory; $configFile will be relative to
* this value.
*
* @param string $projectDirectory
*/
public function __construct($projectDirectory = '')
{
if ('' !== $projectDirectory && is_dir($projectDirectory)) {
$this->configFile = sprintf(
'%s/%s',
$projectDirectory,
$this->configFile
);
}
}
/**
* Determine if the configuration file exists and contains modules.
*
* @return bool
*/
public function locate()
{
if (! is_file($this->configFile)) {
return false;
}
$config = file_get_contents($this->configFile);
return (1 === preg_match($this->expected, $config));
}
}