/
FixerFactory.php
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/
FixerFactory.php
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<?php
/*
* This file is part of PHP CS Fixer.
*
* (c) Fabien Potencier <fabien@symfony.com>
* Dariusz Rumiński <dariusz.ruminski@gmail.com>
*
* This source file is subject to the MIT license that is bundled
* with this source code in the file LICENSE.
*/
namespace PhpCsFixer;
use PhpCsFixer\ConfigurationException\InvalidFixerConfigurationException;
use PhpCsFixer\Fixer\ConfigurableFixerInterface;
use PhpCsFixer\Fixer\FixerInterface;
use PhpCsFixer\Fixer\WhitespacesAwareFixerInterface;
use Symfony\Component\Finder\Finder as SymfonyFinder;
/**
* Class provides a way to create a group of fixers.
*
* Fixers may be registered (made the factory aware of them) by
* registering a custom fixer and default, built in fixers.
* Then, one can attach Config instance to fixer instances.
*
* Finally factory creates a ready to use group of fixers.
*
* @author Dariusz Rumiński <dariusz.ruminski@gmail.com>
*
* @internal
*/
final class FixerFactory
{
/**
* @var FixerNameValidator
*/
private $nameValidator;
/**
* @var FixerInterface[]
*/
private $fixers = [];
/**
* @var FixerInterface[] Associative array of fixers with names as keys
*/
private $fixersByName = [];
public function __construct()
{
$this->nameValidator = new FixerNameValidator();
}
/**
* Create instance.
*
* @return FixerFactory
*/
public static function create()
{
return new self();
}
public function setWhitespacesConfig(WhitespacesFixerConfig $config)
{
foreach ($this->fixers as $fixer) {
if ($fixer instanceof WhitespacesAwareFixerInterface) {
$fixer->setWhitespacesConfig($config);
}
}
return $this;
}
/**
* @return FixerInterface[]
*/
public function getFixers()
{
$this->fixers = Utils::sortFixers($this->fixers);
return $this->fixers;
}
/**
* @return $this
*/
public function registerBuiltInFixers()
{
static $builtInFixers = null;
if (null === $builtInFixers) {
$builtInFixers = [];
foreach (SymfonyFinder::create()->files()->in(__DIR__.'/Fixer') as $file) {
$relativeNamespace = $file->getRelativePath();
$fixerClass = 'PhpCsFixer\\Fixer\\'.($relativeNamespace ? $relativeNamespace.'\\' : '').$file->getBasename('.php');
if ('Fixer' === substr($fixerClass, -5)) {
$builtInFixers[] = $fixerClass;
}
}
}
foreach ($builtInFixers as $class) {
$this->registerFixer(new $class(), false);
}
return $this;
}
/**
* @param FixerInterface[] $fixers
*
* @return $this
*/
public function registerCustomFixers(array $fixers)
{
foreach ($fixers as $fixer) {
$this->registerFixer($fixer, true);
}
return $this;
}
/**
* @param FixerInterface $fixer
* @param bool $isCustom
*
* @return $this
*/
public function registerFixer(FixerInterface $fixer, $isCustom)
{
$name = $fixer->getName();
if (isset($this->fixersByName[$name])) {
throw new \UnexpectedValueException(sprintf('Fixer named "%s" is already registered.', $name));
}
if (!$this->nameValidator->isValid($name, $isCustom)) {
throw new \UnexpectedValueException(sprintf('Fixer named "%s" has invalid name.', $name));
}
$this->fixers[] = $fixer;
$this->fixersByName[$name] = $fixer;
return $this;
}
/**
* Apply RuleSet on fixers to filter out all unwanted fixers.
*
* @param RuleSetInterface $ruleSet
*
* @return $this
*/
public function useRuleSet(RuleSetInterface $ruleSet)
{
$fixers = [];
$fixersByName = [];
$fixerConflicts = [];
$fixerNames = array_keys($ruleSet->getRules());
foreach ($fixerNames as $name) {
if (!array_key_exists($name, $this->fixersByName)) {
throw new \UnexpectedValueException(sprintf('Rule "%s" does not exist.', $name));
}
$fixer = $this->fixersByName[$name];
$config = $ruleSet->getRuleConfiguration($name);
if (null !== $config) {
if ($fixer instanceof ConfigurableFixerInterface) {
if (!\is_array($config) || !\count($config)) {
throw new InvalidFixerConfigurationException($fixer->getName(), 'Configuration must be an array and may not be empty.');
}
$fixer->configure($config);
} else {
throw new InvalidFixerConfigurationException($fixer->getName(), 'Is not configurable.');
}
}
$fixers[] = $fixer;
$fixersByName[$name] = $fixer;
$conflicts = array_intersect($this->getFixersConflicts($fixer), $fixerNames);
if (\count($conflicts) > 0) {
$fixerConflicts[$name] = $conflicts;
}
}
if (\count($fixerConflicts) > 0) {
throw new \UnexpectedValueException($this->generateConflictMessage($fixerConflicts));
}
$this->fixers = $fixers;
$this->fixersByName = $fixersByName;
return $this;
}
/**
* Check if fixer exists.
*
* @param string $name
*
* @return bool
*/
public function hasRule($name)
{
return isset($this->fixersByName[$name]);
}
/**
* @param FixerInterface $fixer
*
* @return null|string[]
*/
private function getFixersConflicts(FixerInterface $fixer)
{
static $conflictMap = [
'no_blank_lines_before_namespace' => ['single_blank_line_before_namespace'],
];
$fixerName = $fixer->getName();
return array_key_exists($fixerName, $conflictMap) ? $conflictMap[$fixerName] : [];
}
/**
* @param array<string, string[]> $fixerConflicts
*
* @return string
*/
private function generateConflictMessage(array $fixerConflicts)
{
$message = 'Rule contains conflicting fixers:';
$report = [];
foreach ($fixerConflicts as $fixer => $fixers) {
// filter mutual conflicts
$report[$fixer] = array_filter(
$fixers,
static function ($candidate) use ($report, $fixer) {
return !array_key_exists($candidate, $report) || !\in_array($fixer, $report[$candidate], true);
}
);
if (\count($report[$fixer]) > 0) {
$message .= sprintf("\n- \"%s\" with \"%s\"", $fixer, implode('", "', $report[$fixer]));
}
}
return $message;
}
}