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<?php |
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namespace Robo; |
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use Robo\Contract\TaskInterface; |
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use Robo\Exception\TaskExitException; |
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use Robo\State\Data; |
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class Result extends ResultData |
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{ |
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/** |
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* @var bool |
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*/ |
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public static $stopOnFail = false; |
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/** |
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* @var \Robo\Contract\TaskInterface |
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*/ |
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protected $task; |
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/** |
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* @param \Robo\Contract\TaskInterface $task |
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* @param int $exitCode |
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* @param string $message |
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* @param array $data |
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*/ |
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public function __construct(TaskInterface $task, $exitCode, $message = '', $data = []) |
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{ |
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parent::__construct($exitCode, $message, $data); |
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$this->task = $task; |
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$this->printResult(); |
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if (self::$stopOnFail) { |
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$this->stopOnFail(); |
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} |
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} |
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/** |
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* Tasks should always return a Result. However, they are also |
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* allowed to return NULL or an array to indicate success. |
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* |
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* @param \Robo\Contract\TaskInterface $task |
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* @param \Robo\Result|\Robo\State\Data|\Robo\ResultData|array|null |
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* |
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* @return static |
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*/ |
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public static function ensureResult($task, $result) |
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{ |
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if ($result instanceof Result) { |
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return $result; |
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} |
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if (!isset($result)) { |
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return static::success($task); |
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} |
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if ($result instanceof Data) { |
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return static::success($task, $result->getMessage(), $result->getData()); |
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} |
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if ($result instanceof ResultData) { |
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return new Result($task, $result->getExitCode(), $result->getMessage(), $result->getData()); |
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} |
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if (is_array($result)) { |
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return static::success($task, '', $result); |
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} |
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throw new \Exception(sprintf('Task %s returned a %s instead of a \Robo\Result.', get_class($task), get_class($result))); |
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} |
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protected function printResult() |
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{ |
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// For historic reasons, the Result constructor is responsible |
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// for printing task results. |
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// TODO: Make IO the responsibility of some other class. Maintaining |
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// existing behavior for backwards compatibility. This is undesirable |
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// in the long run, though, as it can result in unwanted repeated input |
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// in task collections et. al. |
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$resultPrinter = Robo::resultPrinter(); |
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if ($resultPrinter) { |
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if ($resultPrinter->printResult($this)) { |
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$this->alreadyPrinted(); |
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} |
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} |
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} |
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/** |
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* @param \Robo\Contract\TaskInterface $task |
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* @param string $extension |
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* @param string $service |
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* |
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* @return static |
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*/ |
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public static function errorMissingExtension(TaskInterface $task, $extension, $service) |
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{ |
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$messageTpl = 'PHP extension required for %s. Please enable %s'; |
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$message = sprintf($messageTpl, $service, $extension); |
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return self::error($task, $message); |
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} |
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/** |
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* @param \Robo\Contract\TaskInterface $task |
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* @param string $class |
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* @param string $package |
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* |
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* @return static |
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*/ |
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public static function errorMissingPackage(TaskInterface $task, $class, $package) |
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{ |
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$messageTpl = 'Class %s not found. Please install %s Composer package'; |
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$message = sprintf($messageTpl, $class, $package); |
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return self::error($task, $message); |
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} |
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/** |
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* @param \Robo\Contract\TaskInterface $task |
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* @param string $message |
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* @param array $data |
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* |
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* @return static |
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*/ |
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public static function error(TaskInterface $task, $message, $data = []) |
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{ |
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return new self($task, self::EXITCODE_ERROR, $message, $data); |
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} |
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/** |
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* @param \Robo\Contract\TaskInterface $task |
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* @param \Exception $e |
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* @param array $data |
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* |
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* @return static |
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*/ |
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public static function fromException(TaskInterface $task, \Exception $e, $data = []) |
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{ |
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$exitCode = $e->getCode(); |
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if (!$exitCode) { |
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$exitCode = self::EXITCODE_ERROR; |
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} |
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return new self($task, $exitCode, $e->getMessage(), $data); |
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} |
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/** |
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* @param \Robo\Contract\TaskInterface $task |
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* @param string $message |
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* @param array $data |
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* |
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* @return static |
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*/ |
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public static function success(TaskInterface $task, $message = '', $data = []) |
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{ |
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return new self($task, self::EXITCODE_OK, $message, $data); |
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} |
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/** |
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* Return a context useful for logging messages. |
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* |
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* @return array |
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*/ |
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public function getContext() |
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{ |
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$task = $this->getTask(); |
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return TaskInfo::getTaskContext($task) + [ |
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'code' => $this->getExitCode(), |
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'data' => $this->getArrayCopy(), |
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'time' => $this->getExecutionTime(), |
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'message' => $this->getMessage(), |
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]; |
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} |
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/** |
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* Add the results from the most recent task to the accumulated |
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* results from all tasks that have run so far, merging data |
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* as necessary. |
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* |
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* @param int|string $key |
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* @param \Robo\Result $taskResult |
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*/ |
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public function accumulate($key, Result $taskResult) |
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{ |
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// If the task is unnamed, then all of its data elements |
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// just get merged in at the top-level of the final Result object. |
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if (static::isUnnamed($key)) { |
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$this->merge($taskResult); |
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} elseif (isset($this[$key])) { |
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// There can only be one task with a given name; however, if |
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// there are tasks added 'before' or 'after' the named task, |
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// then the results from these will be stored under the same |
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// name unless they are given a name of their own when added. |
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$current = $this[$key]; |
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$this[$key] = $taskResult->merge($current); |
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} else { |
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$this[$key] = $taskResult; |
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} |
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} |
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/** |
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* We assume that named values (e.g. for associative array keys) |
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* are non-numeric; numeric keys are presumed to simply be the |
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* index of an array, and therefore insignificant. |
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* |
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* @param int|string $key |
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* |
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* @return bool |
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*/ |
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public static function isUnnamed($key) |
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{ |
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return is_numeric($key); |
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} |
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/** |
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* @return \Robo\Contract\TaskInterface |
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*/ |
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public function getTask() |
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{ |
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return $this->task; |
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} |
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/** |
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* @return \Robo\Contract\TaskInterface |
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*/ |
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public function cloneTask() |
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{ |
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$reflect = new \ReflectionClass(get_class($this->task)); |
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return $reflect->newInstanceArgs(func_get_args()); |
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} |
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/** |
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* @return bool |
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* |
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* @deprecated since 1.0. |
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* |
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* @see wasSuccessful() |
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*/ |
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public function __invoke() |
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{ |
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trigger_error(__METHOD__ . ' is deprecated: use wasSuccessful() instead.', E_USER_DEPRECATED); |
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return $this->wasSuccessful(); |
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} |
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/** |
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* @return $this |
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*/ |
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public function stopOnFail() |
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{ |
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if (!$this->wasSuccessful()) { |
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$resultPrinter = Robo::resultPrinter(); |
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if ($resultPrinter) { |
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$resultPrinter->printStopOnFail($this); |
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} |
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$this->exitEarly($this->getExitCode()); |
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} |
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return $this; |
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} |
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/** |
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* @param int $status |
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* |
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* @throws \Robo\Exception\TaskExitException |
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*/ |
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private function exitEarly($status) |
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{ |
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throw new TaskExitException($this->getTask(), $this->getMessage(), $status); |
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} |
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} |
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PHP Analyzer performs a side-effects analysis of your code. A side-effect is basically anything that might be visible after the scope of the method is left.
Let’s take a look at an example:
If we look at the
getEmail()
method, we can see that it has no side-effect. Whether you call this method or not, no future calls to other methods are affected by this. As such code as the following is useless:On the hand, if we look at the
setEmail()
, this method _has_ side-effects. In the following case, we could not remove the method call: