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<?php |
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namespace Robo\Task\Base; |
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use Robo\Contract\CommandInterface; |
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use Robo\Contract\PrintedInterface; |
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use Robo\Result; |
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use Robo\Task\BaseTask; |
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use Symfony\Component\Process\Exception\ProcessTimedOutException; |
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use Symfony\Component\Process\Process; |
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/** |
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* Class ParallelExecTask |
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* |
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* ``` php |
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* <?php |
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* $this->taskParallelExec() |
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* ->process('php ~/demos/script.php hey') |
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* ->process('php ~/demos/script.php hoy') |
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* ->process('php ~/demos/script.php gou') |
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* ->run(); |
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* ?> |
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* ``` |
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*/ |
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class ParallelExec extends BaseTask implements CommandInterface, PrintedInterface |
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{ |
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use \Robo\Common\CommandReceiver; |
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/** |
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* @var Process[] |
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*/ |
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protected $processes = []; |
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/** |
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* @var null|int |
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*/ |
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protected $timeout = null; |
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/** |
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* @var null|int |
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*/ |
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protected $idleTimeout = null; |
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/** |
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* @var null|int |
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*/ |
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protected $waitInterval = 0; |
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/** |
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* @var bool |
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*/ |
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protected $isPrinted = false; |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getPrinted() |
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{ |
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return $this->isPrinted; |
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} |
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/** |
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* @param bool $isPrinted |
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* |
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* @return $this |
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*/ |
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public function printed($isPrinted = true) |
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{ |
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$this->isPrinted = $isPrinted; |
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return $this; |
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} |
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/** |
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* @param string|\Robo\Contract\CommandInterface $command |
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* |
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* @return $this |
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*/ |
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public function process($command) |
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{ |
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$this->processes[] = new Process($this->receiveCommand($command)); |
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return $this; |
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} |
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/** |
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* Stops process if it runs longer then `$timeout` (seconds). |
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* |
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* @param int $timeout |
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* |
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* @return $this |
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*/ |
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public function timeout($timeout) |
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{ |
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$this->timeout = $timeout; |
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return $this; |
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} |
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/** |
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* Stops process if it does not output for time longer then `$timeout` (seconds). |
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* |
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* @param int $idleTimeout |
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* |
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* @return $this |
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*/ |
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public function idleTimeout($idleTimeout) |
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{ |
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$this->idleTimeout = $idleTimeout; |
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return $this; |
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} |
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/** |
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* Parallel processing will wait `$waitInterval` seconds after launching each process and before |
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* the next one. |
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* |
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* @param int $waitInterval |
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* |
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* @return $this |
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*/ |
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public function waitInterval($waitInterval) |
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{ |
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$this->waitInterval = $waitInterval; |
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return $this; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getCommand() |
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{ |
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return implode(' && ', $this->processes); |
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} |
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/** |
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* @return int |
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*/ |
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public function progressIndicatorSteps() |
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{ |
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return count($this->processes); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function run() |
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{ |
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$this->startProgressIndicator(); |
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$running = []; |
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$queue = $this->processes; |
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$nextTime = time(); |
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while (true) { |
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if (($nextTime <= time()) && !empty($queue)) { |
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$process = array_shift($queue); |
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$process->setIdleTimeout($this->idleTimeout); |
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$process->setTimeout($this->timeout); |
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$process->start(); |
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$this->printTaskInfo($process->getCommandLine()); |
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$running[] = $process; |
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$nextTime = time() + $this->waitInterval; |
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} |
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foreach ($running as $k => $process) { |
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try { |
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$process->checkTimeout(); |
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} catch (ProcessTimedOutException $e) { |
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$this->printTaskWarning("Process timed out for {command}", ['command' => $process->getCommandLine(), '_style' => ['command' => 'fg=white;bg=magenta']]); |
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} |
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if (!$process->isRunning()) { |
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$this->advanceProgressIndicator(); |
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if ($this->isPrinted) { |
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$this->printTaskInfo("Output for {command}:\n\n{output}", ['command' => $process->getCommandLine(), 'output' => $process->getOutput(), '_style' => ['command' => 'fg=white;bg=magenta']]); |
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$errorOutput = $process->getErrorOutput(); |
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if ($errorOutput) { |
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$this->printTaskError(rtrim($errorOutput)); |
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} |
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} |
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unset($running[$k]); |
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} |
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} |
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if (empty($running) && empty($queue)) { |
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break; |
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} |
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usleep(1000); |
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} |
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$this->stopProgressIndicator(); |
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$errorMessage = ''; |
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$exitCode = 0; |
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foreach ($this->processes as $p) { |
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if ($p->getExitCode() === 0) { |
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continue; |
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} |
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$errorMessage .= "'" . $p->getCommandLine() . "' exited with code ". $p->getExitCode()." \n"; |
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$exitCode = max($exitCode, $p->getExitCode()); |
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} |
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if (!$errorMessage) { |
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$this->printTaskSuccess('{process-count} processes finished running', ['process-count' => count($this->processes)]); |
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} |
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return new Result($this, $exitCode, $errorMessage, ['time' => $this->getExecutionTime()]); |
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} |
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} |
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