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<?php |
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namespace Tartana\Console\Command; |
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use League\Flysystem\Adapter\Local; |
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use Monolog\Logger; |
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use Symfony\Component\Console\Input\InputArgument; |
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use Symfony\Component\Console\Input\InputInterface; |
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use Symfony\Component\Console\Input\InputOption; |
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use Symfony\Component\Console\Output\OutputInterface; |
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use Tartana\Component\Command\Command; |
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use Tartana\Component\Command\Runner; |
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use Tartana\Mixins\LoggerAwareTrait; |
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use Tartana\Util; |
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use League\Flysystem\Config; |
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abstract class AbstractDaemonCommand extends \Symfony\Component\Console\Command\Command |
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{ |
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use LoggerAwareTrait; |
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private $commandRunner = null; |
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public function __construct(Runner $commandRunner) |
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{ |
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parent::__construct(); |
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$this->commandRunner = $commandRunner; |
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} |
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/** |
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* The long running work. |
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* |
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* @param InputInterface $input |
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* @param OutputInterface $output |
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*/ |
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abstract protected function doWork(InputInterface $input, OutputInterface $output); |
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protected function configure() |
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{ |
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$this->addArgument('action', InputArgument::OPTIONAL, 'The action, can be start or stop.', 'start'); |
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$this->addOption('background', 'b', InputOption::VALUE_NONE, 'Should start on background.'); |
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} |
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protected function execute(InputInterface $input, OutputInterface $output) |
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{ |
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// Getting arguments |
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$action = $input->getArgument('action'); |
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$environment = $input->getOption('env'); |
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$background = (boolean)$input->getOption('background'); |
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$pidFile = $this->getName() . '_' . $environment . '.pid'; |
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$fs = new Local(TARTANA_PATH_ROOT . '/var/tmp/'); |
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if ($action == 'start') { |
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if ($fs->has($pidFile)) { |
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$pids = array_filter(explode(':', $fs->read($pidFile)['contents'])); |
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if (!empty($pids)) { |
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$runningPids = []; |
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foreach ($pids as $key => $pid) { |
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if (!Util::isPidRunning($pid)) { |
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continue; |
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} |
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$runningPids[$key] = $pid; |
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} |
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if ($runningPids == $pids) { |
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$this->log( |
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'Daemon for command ' . $this->getName() . ' is already running with the pids ' . implode(':', $pids), |
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Logger::INFO |
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); |
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return; |
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} else { |
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// Killing all running processes and starting again |
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foreach ($runningPids as $pid) { |
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$this->killPid($pid); |
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} |
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$fs->delete($pidFile); |
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} |
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} |
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} |
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if ($background) { |
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// Stripping out the not needed tokens |
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1 |
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$inputString = (string)$input; |
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$inputString = str_replace([ |
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'-b ', |
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'--backgound ', |
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$this->getName() . ' ' |
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], '', $inputString); |
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$command = Command::getAppCommand($this->getName()); |
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$command->setAsync(true); |
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$command->setCaptureErrorInOutput(true); |
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$command->addArgument($inputString, false); |
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$this->getCommandRunner()->execute($command); |
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$this->log('Started daemon for command ' . $this->getName() . ' in background mode.', Logger::INFO); |
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return; |
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} |
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$this->attachPid($input, getmypid()); |
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$this->doWork($input, $output); |
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$fs->delete($pidFile); |
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} |
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if ($action == 'stop' && $fs->has($pidFile)) { |
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$pids = explode(':', $fs->read($pidFile)['contents']); |
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if (!empty($pids)) { |
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$this->log( |
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'Daemon for command ' . $this->getName() . ' is running with the pids ' . implode(':', $pids) . ' killing it', |
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Logger::INFO |
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); |
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foreach ($pids as $pid) { |
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if (!Util::isPidRunning($pid)) { |
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continue; |
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} |
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$this->killPid($pid); |
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} |
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} |
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$fs->delete($pidFile); |
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$this->log('Daemon for command ' . $this->getName() . ' stopped', Logger::INFO); |
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} |
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} |
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/** |
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* |
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* @return \Tartana\Component\Command\Runner |
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*/ |
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protected function getCommandRunner() |
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{ |
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return $this->commandRunner; |
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} |
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protected function attachPid(InputInterface $input, $pid) |
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{ |
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$environment = $input->getOption('env'); |
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$pidFile = $this->getName() . '_' . $environment . '.pid'; |
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$fs = new Local(TARTANA_PATH_ROOT . '/var/tmp/'); |
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$pids = []; |
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if ($fs->has($pidFile)) { |
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$pids = array_filter(explode(':', $fs->read($pidFile)['contents'])); |
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} |
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if (!in_array($pid, $pids)) { |
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$pids[] = $pid; |
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} |
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$fs->write($pidFile, implode(':', $pids), new Config()); |
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} |
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2 |
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private function killPid($pid) |
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{ |
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$command = new Command('kill'); |
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$command->addArgument('-9'); |
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$command->addArgument($pid); |
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$output = $this->getCommandRunner()->execute($command); |
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$this->log('Output of daemon ' . $this->getName() . ' kill is for pid ' . $pid . ' is: ' . $output); |
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} |
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} |
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C-Sparrow /
Tartana
