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<?php
namespace PHPMD\Baseline;
use PHPMD\TextUI\CommandLineOptions;
use RuntimeException;
class BaselineFileFinder
{
const DEFAULT_FILENAME = 'phpmd.baseline.xml';
/** @var CommandLineOptions */
private $options;
/** @var bool */
private $existingFile = false;
/** @var bool */
private $notNull = false;
public function __construct(CommandLineOptions $options)
{
$this->options = $options;
}
/**
* The baseline filepath should point to an existing file (or null)
* @return $this
*/
public function existingFile()
{
$this->existingFile = true;
return $this;
}
/**
* if true, the finder `must` find a file path, but doesn't necessarily exist
* @return $this
*/
public function notNull()
{
$this->notNull = true;
return $this;
}
/**
* Find the violation baseline file
*
* @return string|null
* @throws RuntimeException
*/
public function find()
{
// read baseline file from cli arguments
$file = $this->options->baselineFile();
if ($file !== null) {
return $file;
}
// find baseline file next to the (first) ruleset
$ruleSets = explode(',', $this->options->getRuleSets());
$rulePath = realpath($ruleSets[0]);
if ($rulePath === false) {
return $this->nullOrThrow(
sprintf(
'Unable to determine the baseline file location. ' .
'Either specify file location via --baseline-file or make sure `%s` ' .
'is a valid ruleset file location',
$ruleSets[0]
)
);
}
// create file path and check for existence
$baselinePath = dirname($rulePath) . '/' . self::DEFAULT_FILENAME;
if ($this->existingFile === true && file_exists($baselinePath) === false) {
return $this->nullOrThrow('Unable to find the baseline file. Use --baseline-file to specify the filepath');
}
return $baselinePath;
}
/**
* @param string $message
*
* @return null
* @throws RuntimeException
*/
private function nullOrThrow($message)
{
if ($this->notNull === true) {
throw new RuntimeException($message);
}
return null;
}
}