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<?php |
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/* (c) Anton Medvedev <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Deployer\Console; |
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use Deployer\Deployer; |
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use Deployer\Task\GroupTask; |
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use Deployer\Task\TaskCollection; |
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use Symfony\Component\Console\Command\Command; |
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use Symfony\Component\Console\Input\InputArgument; |
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use Symfony\Component\Console\Input\InputInterface as Input; |
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use Symfony\Component\Console\Output\OutputInterface as Output; |
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/** |
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* @copyright (c) Oskar van Velden <[email protected]> |
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*/ |
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class TreeCommand extends Command |
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{ |
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protected $output; |
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/** |
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* @var TaskCollection |
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*/ |
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private $tasks; |
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/** |
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* @var Deployer |
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*/ |
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private $deployer; |
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private $tree; |
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/** |
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* Depth of nesting (for rendering purposes) |
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* @var int |
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*/ |
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private $depth = 0; |
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/** |
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* @var array |
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*/ |
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private $openGroupDepths = []; |
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/** |
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* @param Deployer $deployer |
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*/ |
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public function __construct(Deployer $deployer) |
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{ |
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parent::__construct('tree'); |
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$this->setDescription('Display the task-tree for a given task'); |
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$this->deployer = $deployer; |
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$this->tree = []; |
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} |
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/** |
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* Configures the command |
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*/ |
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protected function configure() |
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{ |
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$this->addArgument( |
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'task', |
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InputArgument::REQUIRED, |
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'Task to display the tree for' |
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); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function execute(Input $input, Output $output) |
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{ |
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$this->output = $output; |
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$rootTaskName = $input->getArgument('task'); |
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$this->buildTree($rootTaskName); |
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$this->outputTree($rootTaskName); |
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return 0; |
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} |
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/** |
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* Build the tree based on the given taskName |
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* @param $taskName |
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* |
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* @return void |
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*/ |
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private function buildTree($taskName) |
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{ |
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$this->tasks = Deployer::get()->tasks; |
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$this->createTreeFromTaskName($taskName, '', true); |
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} |
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/** |
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* Create a tree from the given taskname |
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* |
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* @param string $taskName |
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* @param string $postfix |
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* @param bool $isLast |
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* |
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* @return void |
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*/ |
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private function createTreeFromTaskName($taskName, $postfix = '', $isLast = false) |
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{ |
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$task = $this->tasks->get($taskName); |
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if ($task->getBefore()) { |
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$beforePostfix = sprintf(" // before %s", $task->getName()); |
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foreach ($task->getBefore() as $beforeTask) { |
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$this->createTreeFromTaskName($beforeTask, $beforePostfix); |
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} |
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} |
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if ($task instanceof GroupTask) { |
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$isLast = $isLast && empty($task->getAfter()); |
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$this->addTaskToTree($task->getName() . $postfix, $isLast); |
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if (!$isLast) { |
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$this->openGroupDepths[] = $this->depth; |
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} |
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$this->depth++; |
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$taskGroup = $task->getGroup(); |
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foreach ($taskGroup as $subtask) { |
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$isLastSubtask = $subtask === end($taskGroup); |
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$this->createTreeFromTaskName($subtask, '', $isLastSubtask); |
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} |
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if (!$isLast) { |
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array_pop($this->openGroupDepths); |
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} |
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$this->depth--; |
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} else { |
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$this->addTaskToTree($task->getName() . $postfix, $isLast); |
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} |
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if ($task->getAfter()) { |
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$afterPostfix = sprintf(" // after %s", $task->getName()); |
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foreach ($task->getAfter() as $afterTask) { |
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$this->createTreeFromTaskName($afterTask, $afterPostfix); |
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} |
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} |
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} |
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/** |
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* Add the (formatted) taskName to the rendertree, with some additional information |
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* |
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* @param string $taskName formatted with prefixes if needed |
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* @param bool $isLast indication for what symbol to use for rendering |
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*/ |
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private function addTaskToTree($taskName, $isLast = false) |
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{ |
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$this->tree[] = [ |
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'taskName' => $taskName, |
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'depth' => $this->depth, |
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'isLast' => $isLast, |
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'openDepths' => $this->openGroupDepths |
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]; |
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} |
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/** |
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* Render the tree, after everything is build |
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* |
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* @param $taskName |
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*/ |
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private function outputTree($taskName) |
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{ |
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$this->output->writeln("The task-tree for <info>$taskName</info>:"); |
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/** |
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* @var $REPEAT_COUNT number of spaces for each depth increase |
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*/ |
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$REPEAT_COUNT = 4; |
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foreach ($this->tree as $treeItem) { |
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$depth = $treeItem['depth']; |
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$startSymbol = $treeItem['isLast'] || $treeItem === end($this->tree) ? '└' : '├'; |
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$prefix = ''; |
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for ($i = 0; $i < $depth; $i++) { |
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if (in_array($i, $treeItem['openDepths'])) { |
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$prefix .= '│' . str_repeat(' ', $REPEAT_COUNT - 1); |
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} else { |
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$prefix .= str_repeat(' ', $REPEAT_COUNT); |
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} |
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} |
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$prefix .= $startSymbol . '──'; |
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$this->output->writeln(sprintf('%s %s', $prefix, $treeItem['taskName'])); |
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} |
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} |
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} |
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deployphp /
deployer
