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<?php |
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namespace Stecman\Component\Symfony\Console\BashCompletion; |
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use Stecman\Component\Symfony\Console\BashCompletion\Completion\CompletionAwareInterface; |
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use Stecman\Component\Symfony\Console\BashCompletion\Completion\CompletionInterface; |
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use Symfony\Component\Console\Application; |
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use Symfony\Component\Console\Command\Command; |
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use Symfony\Component\Console\Input\ArrayInput; |
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use Symfony\Component\Console\Input\InputArgument; |
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use Symfony\Component\Console\Input\InputOption; |
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class CompletionHandler |
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{ |
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/** |
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* Application to complete for |
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* @var \Symfony\Component\Console\Application |
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*/ |
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protected $application; |
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/** |
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* @var Command |
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*/ |
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protected $command; |
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/** |
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* @var CompletionContext |
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*/ |
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protected $context; |
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/** |
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* Array of completion helpers. |
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* @var CompletionInterface[] |
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*/ |
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protected $helpers = array(); |
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/** |
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* Index the command name was detected at |
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* @var int |
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*/ |
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private $commandWordIndex; |
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public function __construct(Application $application, CompletionContext $context = null) |
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{ |
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$this->application = $application; |
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$this->context = $context; |
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// Set up completions for commands that are built-into Application |
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$this->addHandler( |
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new Completion( |
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'help', |
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'command_name', |
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Completion::TYPE_ARGUMENT, |
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$this->getCommandNames() |
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) |
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); |
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$this->addHandler( |
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new Completion( |
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'list', |
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'namespace', |
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Completion::TYPE_ARGUMENT, |
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$application->getNamespaces() |
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) |
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); |
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} |
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public function setContext(CompletionContext $context) |
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{ |
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$this->context = $context; |
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} |
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/** |
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* @return CompletionContext |
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*/ |
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public function getContext() |
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{ |
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return $this->context; |
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} |
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/** |
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* @param CompletionInterface[] $array |
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*/ |
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public function addHandlers(array $array) |
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{ |
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$this->helpers = array_merge($this->helpers, $array); |
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} |
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/** |
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* @param CompletionInterface $helper |
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*/ |
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public function addHandler(CompletionInterface $helper) |
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{ |
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$this->helpers[] = $helper; |
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} |
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/** |
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* Do the actual completion, returning an array of strings to provide to the parent shell's completion system |
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* |
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* @throws \RuntimeException |
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* @return string[] |
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*/ |
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public function runCompletion() |
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{ |
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if (!$this->context) { |
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throw new \RuntimeException('A CompletionContext must be set before requesting completion.'); |
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} |
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// Set the command to query options and arugments from |
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$this->command = $this->detectCommand(); |
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$process = array( |
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'completeForOptionValues', |
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'completeForOptionShortcuts', |
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'completeForOptionShortcutValues', |
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'completeForOptions', |
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'completeForCommandName', |
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'completeForCommandArguments' |
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); |
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foreach ($process as $methodName) { |
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$result = $this->{$methodName}(); |
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if (false !== $result) { |
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// Return the result of the first completion mode that matches |
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return $this->filterResults((array) $result); |
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} |
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} |
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return array(); |
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} |
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/** |
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* Get an InputInterface representation of the completion context |
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* |
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* @deprecated Incorrectly uses the ArrayInput API and is no longer needed. |
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* This will be removed in the next major version. |
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* |
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* @return ArrayInput |
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*/ |
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public function getInput() |
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{ |
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// Filter the command line content to suit ArrayInput |
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$words = $this->context->getWords(); |
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array_shift($words); |
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$words = array_filter($words); |
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return new ArrayInput($words); |
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} |
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/** |
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* Attempt to complete the current word as a long-form option (--my-option) |
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* |
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* @return array|false |
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*/ |
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protected function completeForOptions() |
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{ |
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$word = $this->context->getCurrentWord(); |
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if (substr($word, 0, 2) === '--') { |
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$options = array(); |
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foreach ($this->getAllOptions() as $opt) { |
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$options[] = '--'.$opt->getName(); |
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} |
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return $options; |
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} |
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return false; |
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} |
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/** |
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* Attempt to complete the current word as an option shortcut. |
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* |
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* If the shortcut exists it will be completed, but a list of possible shortcuts is never returned for completion. |
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* |
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* @return array|false |
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*/ |
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protected function completeForOptionShortcuts() |
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{ |
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$word = $this->context->getCurrentWord(); |
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if (strpos($word, '-') === 0 && strlen($word) == 2) { |
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$definition = $this->command ? $this->command->getNativeDefinition() : $this->application->getDefinition(); |
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if ($definition->hasShortcut(substr($word, 1))) { |
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return array($word); |
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} |
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} |
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return false; |
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} |
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/** |
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* Attempt to complete the current word as the value of an option shortcut |
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* |
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* @return array|false |
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*/ |
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View Code Duplication |
protected function completeForOptionShortcutValues() |
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{ |
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$wordIndex = $this->context->getWordIndex(); |
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if ($this->command && $wordIndex > 1) { |
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$left = $this->context->getWordAtIndex($wordIndex - 1); |
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// Complete short options |
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if ($left[0] == '-' && strlen($left) == 2) { |
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$shortcut = substr($left, 1); |
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$def = $this->command->getNativeDefinition(); |
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if (!$def->hasShortcut($shortcut)) { |
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return false; |
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} |
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$opt = $def->getOptionForShortcut($shortcut); |
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if ($opt->isValueRequired() || $opt->isValueOptional()) { |
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return $this->completeOption($opt); |
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} |
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} |
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} |
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return false; |
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} |
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/** |
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* Attemp to complete the current word as the value of a long-form option |
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* |
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* @return array|false |
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*/ |
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View Code Duplication |
protected function completeForOptionValues() |
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{ |
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$wordIndex = $this->context->getWordIndex(); |
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if ($this->command && $wordIndex > 1) { |
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$left = $this->context->getWordAtIndex($wordIndex - 1); |
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if (strpos($left, '--') === 0) { |
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$name = substr($left, 2); |
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$def = $this->command->getNativeDefinition(); |
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if (!$def->hasOption($name)) { |
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return false; |
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} |
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$opt = $def->getOption($name); |
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if ($opt->isValueRequired() || $opt->isValueOptional()) { |
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return $this->completeOption($opt); |
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} |
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} |
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} |
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return false; |
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} |
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/** |
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* Attempt to complete the current word as a command name |
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* |
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* @return array|false |
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*/ |
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protected function completeForCommandName() |
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{ |
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if (!$this->command || $this->context->getWordIndex() == $this->commandWordIndex) { |
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return $this->getCommandNames(); |
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} |
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return false; |
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} |
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/** |
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* Attempt to complete the current word as a command argument value |
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* |
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* @see Symfony\Component\Console\Input\InputArgument |
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* @return array|false |
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*/ |
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protected function completeForCommandArguments() |
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{ |
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if (!$this->command || strpos($this->context->getCurrentWord(), '-') === 0) { |
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return false; |
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} |
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$definition = $this->command->getNativeDefinition(); |
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$argWords = $this->mapArgumentsToWords($definition->getArguments()); |
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$wordIndex = $this->context->getWordIndex(); |
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if (isset($argWords[$wordIndex])) { |
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$name = $argWords[$wordIndex]; |
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} elseif (!empty($argWords) && $definition->getArgument(end($argWords))->isArray()) { |
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$name = end($argWords); |
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} else { |
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return false; |
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} |
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if ($helper = $this->getCompletionHelper($name, Completion::TYPE_ARGUMENT)) { |
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return $helper->run(); |
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} |
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if ($this->command instanceof CompletionAwareInterface) { |
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return $this->command->completeArgumentValues($name, $this->context); |
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} |
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return false; |
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} |
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/** |
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306
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* Find a CompletionInterface that matches the current command, target name, and target type |
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* |
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* @param string $name |
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* @param string $type |
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310
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* @return CompletionInterface|null |
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*/ |
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protected function getCompletionHelper($name, $type) |
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313
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{ |
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314
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foreach ($this->helpers as $helper) { |
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if ($helper->getType() != $type && $helper->getType() != CompletionInterface::ALL_TYPES) { |
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continue; |
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} |
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319
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if ($helper->getCommandName() == CompletionInterface::ALL_COMMANDS || $helper->getCommandName() == $this->command->getName()) { |
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if ($helper->getTargetName() == $name) { |
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return $helper; |
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} |
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} |
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} |
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return null; |
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} |
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329
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/** |
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330
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* Complete the value for the given option if a value completion is availble |
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331
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* |
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332
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* @param InputOption $option |
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333
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* @return array|false |
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334
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*/ |
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335
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protected function completeOption(InputOption $option) |
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336
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{ |
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337
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if ($helper = $this->getCompletionHelper($option->getName(), Completion::TYPE_OPTION)) { |
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338
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return $helper->run(); |
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339
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} |
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340
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341
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if ($this->command instanceof CompletionAwareInterface) { |
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342
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return $this->command->completeOptionValues($option->getName(), $this->context); |
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343
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} |
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344
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345
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return false; |
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346
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} |
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347
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348
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/** |
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349
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* Step through the command line to determine which word positions represent which argument values |
|
350
|
|
|
* |
|
351
|
|
|
* The word indexes of argument values are found by eliminating words that are known to not be arguments (options, |
|
352
|
|
|
* option values, and command names). Any word that doesn't match for elimination is assumed to be an argument value, |
|
353
|
|
|
* |
|
354
|
|
|
* @param InputArgument[] $argumentDefinitions |
|
355
|
|
|
* @return array as [argument name => word index on command line] |
|
356
|
|
|
*/ |
|
357
|
|
|
protected function mapArgumentsToWords($argumentDefinitions) |
|
358
|
|
|
{ |
|
359
|
|
|
$argumentPositions = array(); |
|
360
|
|
|
$argumentNumber = 0; |
|
361
|
|
|
$previousWord = null; |
|
362
|
|
|
$argumentNames = array_keys($argumentDefinitions); |
|
363
|
|
|
|
|
364
|
|
|
// Build a list of option values to filter out |
|
365
|
|
|
$optionsWithArgs = $this->getOptionWordsWithValues(); |
|
366
|
|
|
|
|
367
|
|
|
foreach ($this->context->getWords() as $wordIndex => $word) { |
|
368
|
|
|
// Skip program name, command name, options, and option values |
|
369
|
|
|
if ($wordIndex == 0 |
|
370
|
|
|
|| $wordIndex === $this->commandWordIndex |
|
371
|
|
|
|| ($word && '-' === $word[0]) |
|
372
|
|
|
|| in_array($previousWord, $optionsWithArgs)) { |
|
373
|
|
|
$previousWord = $word; |
|
374
|
|
|
continue; |
|
375
|
|
|
} else { |
|
376
|
|
|
$previousWord = $word; |
|
377
|
|
|
} |
|
378
|
|
|
|
|
379
|
|
|
// If argument n exists, pair that argument's name with the current word |
|
380
|
|
|
if (isset($argumentNames[$argumentNumber])) { |
|
381
|
|
|
$argumentPositions[$wordIndex] = $argumentNames[$argumentNumber]; |
|
382
|
|
|
} |
|
383
|
|
|
|
|
384
|
|
|
$argumentNumber++; |
|
385
|
|
|
} |
|
386
|
|
|
|
|
387
|
|
|
return $argumentPositions; |
|
388
|
|
|
} |
|
389
|
|
|
|
|
390
|
|
|
/** |
|
391
|
|
|
* Build a list of option words/flags that will have a value after them |
|
392
|
|
|
* Options are returned in the format they appear as on the command line. |
|
393
|
|
|
* |
|
394
|
|
|
* @return string[] - eg. ['--myoption', '-m', ... ] |
|
395
|
|
|
*/ |
|
396
|
|
|
protected function getOptionWordsWithValues() |
|
397
|
|
|
{ |
|
398
|
|
|
$strings = array(); |
|
399
|
|
|
|
|
400
|
|
|
foreach ($this->getAllOptions() as $option) { |
|
401
|
|
|
if ($option->isValueRequired()) { |
|
402
|
|
|
$strings[] = '--' . $option->getName(); |
|
403
|
|
|
|
|
404
|
|
|
if ($option->getShortcut()) { |
|
405
|
|
|
$strings[] = '-' . $option->getShortcut(); |
|
406
|
|
|
} |
|
407
|
|
|
} |
|
408
|
|
|
} |
|
409
|
|
|
|
|
410
|
|
|
return $strings; |
|
411
|
|
|
} |
|
412
|
|
|
|
|
413
|
|
|
/** |
|
414
|
|
|
* Filter out results that don't match the current word on the command line |
|
415
|
|
|
* |
|
416
|
|
|
* @param string[] $array |
|
417
|
|
|
* @return string[] |
|
418
|
|
|
*/ |
|
419
|
|
|
protected function filterResults(array $array) |
|
420
|
|
|
{ |
|
421
|
|
|
$curWord = $this->context->getCurrentWord(); |
|
422
|
|
|
|
|
423
|
|
|
return array_filter($array, function($val) use ($curWord) { |
|
424
|
|
|
return fnmatch($curWord.'*', $val); |
|
425
|
|
|
}); |
|
426
|
|
|
} |
|
427
|
|
|
|
|
428
|
|
|
/** |
|
429
|
|
|
* Get the combined options of the application and entered command |
|
430
|
|
|
* |
|
431
|
|
|
* @return InputOption[] |
|
432
|
|
|
*/ |
|
433
|
|
|
protected function getAllOptions() |
|
434
|
|
|
{ |
|
435
|
|
|
if (!$this->command) { |
|
436
|
|
|
return $this->application->getDefinition()->getOptions(); |
|
437
|
|
|
} |
|
438
|
|
|
|
|
439
|
|
|
return array_merge( |
|
440
|
|
|
$this->command->getNativeDefinition()->getOptions(), |
|
441
|
|
|
$this->application->getDefinition()->getOptions() |
|
442
|
|
|
); |
|
443
|
|
|
} |
|
444
|
|
|
|
|
445
|
|
|
/** |
|
446
|
|
|
* Get command names available for completion |
|
447
|
|
|
* |
|
448
|
|
|
* Filters out hidden commands where supported. |
|
449
|
|
|
* |
|
450
|
|
|
* @return string[] |
|
451
|
|
|
*/ |
|
452
|
|
|
protected function getCommandNames() |
|
453
|
|
|
{ |
|
454
|
|
|
// Command::Hidden isn't supported before Symfony Console 3.2.0 |
|
455
|
|
|
// We don't complete hidden command names as these are intended to be private |
|
456
|
|
|
if (method_exists('\Symfony\Component\Console\Command\Command', 'isHidden')) { |
|
457
|
|
|
$commands = array(); |
|
458
|
|
|
|
|
459
|
|
|
foreach ($this->application->all() as $name => $command) { |
|
460
|
|
|
if (!$command->isHidden()) { |
|
461
|
|
|
$commands[] = $name; |
|
462
|
|
|
} |
|
463
|
|
|
} |
|
464
|
|
|
|
|
465
|
|
|
return $commands; |
|
466
|
|
|
|
|
467
|
|
|
} else { |
|
468
|
|
|
|
|
469
|
|
|
// Fallback for compatibility with Symfony Console < 3.2.0 |
|
470
|
|
|
// This was the behaviour prior to pull #75 |
|
471
|
|
|
$commands = $this->application->all(); |
|
472
|
|
|
unset($commands['_completion']); |
|
473
|
|
|
|
|
474
|
|
|
return array_keys($commands); |
|
475
|
|
|
} |
|
476
|
|
|
} |
|
477
|
|
|
|
|
478
|
|
|
/** |
|
479
|
|
|
* Find the current command name in the command-line |
|
480
|
|
|
* |
|
481
|
|
|
* Note this only cares about flag-type options. Options with values cannot |
|
482
|
|
|
* appear before a command name in Symfony Console application. |
|
483
|
|
|
* |
|
484
|
|
|
* @return Command|null |
|
485
|
|
|
*/ |
|
486
|
|
|
private function detectCommand() |
|
487
|
|
|
{ |
|
488
|
|
|
// Always skip the first word (program name) |
|
489
|
|
|
$skipNext = true; |
|
490
|
|
|
|
|
491
|
|
|
foreach ($this->context->getWords() as $index => $word) { |
|
|
|
|
|
|
492
|
|
|
|
|
493
|
|
|
// Skip word if flagged |
|
494
|
|
|
if ($skipNext) { |
|
495
|
|
|
$skipNext = false; |
|
496
|
|
|
continue; |
|
497
|
|
|
} |
|
498
|
|
|
|
|
499
|
|
|
// Skip empty words and words that look like options |
|
500
|
|
|
if (strlen($word) == 0 || $word[0] === '-') { |
|
501
|
|
|
continue; |
|
502
|
|
|
} |
|
503
|
|
|
|
|
504
|
|
|
// Return the first unambiguous match to argument-like words |
|
505
|
|
|
try { |
|
506
|
|
|
$cmd = $this->application->find($word); |
|
507
|
|
|
$this->commandWordIndex = $index; |
|
|
|
|
|
|
508
|
|
|
return $cmd; |
|
509
|
|
|
} catch (\InvalidArgumentException $e) { |
|
510
|
|
|
// Exception thrown, when multiple or no commands are found. |
|
511
|
|
|
} |
|
512
|
|
|
} |
|
513
|
|
|
|
|
514
|
|
|
// No command found |
|
515
|
|
|
return null; |
|
516
|
|
|
} |
|
517
|
|
|
} |
|
518
|
|
|
|
There are different options of fixing this problem.
If you want to be on the safe side, you can add an additional type-check:
If you are sure that the expression is traversable, you might want to add a doc comment cast to improve IDE auto-completion and static analysis:
Mark the issue as a false-positive: Just hover the remove button, in the top-right corner of this issue for more options.