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<?php declare(strict_types = 1); |
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namespace Churn\Configuration; |
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use Throwable; |
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use Webmozart\Assert\Assert; |
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use DateTime; |
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use InvalidArgumentException; |
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class Config |
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{ |
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const FILES_TO_SHOW = 10; |
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const MINIMUM_SCORE_TO_SHOW = 0; |
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const AMOUNT_OF_PARALLEL_JOBS = 10; |
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const SHOW_COMMITS_SINCE = '10 years ago'; |
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const FILES_TO_IGNORE = []; |
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const FILE_EXTENSIONS_TO_PARSE = ['php']; |
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/** |
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* @var array |
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*/ |
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private $configuration; |
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/** |
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* Create a config with given configuration |
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* @param array $configuration The array containing the configuration values. |
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* @return Config |
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*/ |
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public static function create(array $configuration): Config |
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{ |
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return new self($configuration); |
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} |
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/** |
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* Create a config with default configuration |
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* @return Config |
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*/ |
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public static function createFromDefaultValues(): Config |
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{ |
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return new self(); |
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} |
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/** |
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* Config constructor. |
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* @param array $configuration Raw config data. |
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* @throws InvalidArgumentException If parameters is badly defined. |
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*/ |
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private function __construct(array $configuration = []) |
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{ |
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if (!empty($configuration)) { |
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$this->validateConfigurationValues($configuration); |
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} |
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$this->configuration = $configuration; |
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} |
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/** |
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* Get the number of files to display in the results table. |
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* @return integer |
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*/ |
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public function getFilesToShow(): int |
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{ |
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return $this->configuration['filesToShow'] ?? self::FILES_TO_SHOW; |
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} |
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/** |
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* Get the minimum score a file need to display. |
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* @return integer |
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*/ |
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public function getMinScoreToShow(): int |
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{ |
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return $this->configuration['minScoreToShow'] ?? self::MINIMUM_SCORE_TO_SHOW; |
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} |
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/** |
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* Get the number of parallel jobs to use to process the files. |
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* @return integer |
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*/ |
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public function getParallelJobs(): int |
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{ |
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return $this->configuration['parallelJobs'] ?? self::AMOUNT_OF_PARALLEL_JOBS; |
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} |
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/** |
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* Get how far back in the git history to go to count commits. |
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* @return string |
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*/ |
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public function getCommitsSince(): string |
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{ |
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return $this->configuration['commitsSince'] ?? self::SHOW_COMMITS_SINCE; |
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} |
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/** |
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* Get the paths to files to ignore when processing. |
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* @return array |
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*/ |
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public function getFilesToIgnore(): array |
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{ |
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return $this->configuration['filesToIgnore'] ?? self::FILES_TO_IGNORE; |
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} |
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/** |
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* Get the file extensions to use when processing. |
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* @return array |
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*/ |
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public function getFileExtensions(): array |
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{ |
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return $this->configuration['fileExtensions'] ?? self::FILE_EXTENSIONS_TO_PARSE; |
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} |
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/** |
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* @param array $configuration The array containing the configuration values. |
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* @return void |
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*/ |
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private function validateConfigurationValues(array $configuration): void |
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{ |
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$this->validateFilesToShow($configuration); |
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$this->validateMinScoreToShow($configuration); |
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$this->validateParallelJobs($configuration); |
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$this->validateCommitsSince($configuration); |
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$this->validateFilesToIgnore($configuration); |
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$this->validateFileExtensions($configuration); |
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} |
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/** |
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* @param array $configuration The array containing the configuration values. |
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* @return void |
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*/ |
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private function validateFilesToShow(array $configuration): void |
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{ |
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if (array_key_exists('filesToShow', $configuration)) { |
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Assert::integer($configuration['filesToShow'], 'Files to show should be an integer'); |
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} |
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} |
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/** |
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* @param array $configuration The array containing the configuration values. |
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* @return void |
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*/ |
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private function validateMinScoreToShow(array $configuration): void |
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{ |
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if (array_key_exists('minScoreToShow', $configuration)) { |
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Assert::integer($configuration['minScoreToShow'], 'Minimum score to show should be an integer'); |
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} |
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} |
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/** |
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* @param array $configuration The array containing the configuration values. |
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* @return void |
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*/ |
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private function validateParallelJobs(array $configuration): void |
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{ |
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if (array_key_exists('parallelJobs', $configuration)) { |
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Assert::integer($configuration['parallelJobs'], 'Amount of parallel jobs should be an integer'); |
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} |
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} |
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/** |
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* @param array $configuration The array containing the configuration values. |
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* @return void |
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* @throws InvalidArgumentException If date is in a bad format. |
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*/ |
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private function validateCommitsSince(array $configuration): void |
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{ |
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if (array_key_exists('commitsSince', $configuration)) { |
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Assert::string($configuration['commitsSince'], 'Commits since should be a string'); |
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try { |
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new DateTime($configuration['commitsSince']); |
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} catch (Throwable $e) { |
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throw new InvalidArgumentException('Commits since should be in a valid date format'); |
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} |
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} |
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} |
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/** |
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* @param array $configuration The array containing the configuration values. |
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* @return void |
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*/ |
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private function validateFilesToIgnore(array $configuration): void |
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{ |
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if (array_key_exists('filesToIgnore', $configuration)) { |
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Assert::isArray($configuration['filesToIgnore'], 'Files to ignore should be an array of strings'); |
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} |
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} |
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/** |
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* @param array $configuration The array containing the configuration values. |
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* @return void |
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*/ |
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private function validateFileExtensions(array $configuration): void |
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{ |
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if (array_key_exists('fileExtensions', $configuration)) { |
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Assert::isArray($configuration['fileExtensions'], 'File extensions should be an array of strings'); |
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} |
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} |
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} |
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