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<?php |
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namespace Consolidation\AnnotatedCommand; |
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use Symfony\Component\Console\Command\Command; |
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use Symfony\Component\Console\Input\InputInterface; |
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use Symfony\Component\Console\Output\OutputInterface; |
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use Symfony\Component\Console\Output\ConsoleOutputInterface; |
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use Consolidation\OutputFormatters\FormatterManager; |
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/** |
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* Process a command, including hooks and other callbacks |
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*/ |
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class CommandProcessor |
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{ |
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protected $hookManager; |
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protected $formatterManager; |
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public function __construct($hookManager) |
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{ |
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$this->hookManager = $hookManager; |
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} |
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public function hookManager() |
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{ |
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return $this->hookManager; |
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} |
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public function setFormatterManager(FormatterManager $formatterManager) |
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{ |
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$this->formatterManager = $formatterManager; |
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} |
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public function formatterManager() |
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{ |
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return $this->formatterManager; |
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} |
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public function getFormatter($format, $annotationData) |
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{ |
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if (!isset($this->formatterManager)) { |
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return; |
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} |
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return $this->formatterManager->getFormatter($format, $annotationData); |
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} |
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public function process( |
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OutputInterface $output, |
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$names, |
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$commandCallback, |
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$annotationData, |
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$args |
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) { |
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$result = []; |
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try { |
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$result = $this->validateRunAndAlter( |
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$names, |
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$commandCallback, |
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$args |
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); |
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} catch (\Exception $e) { |
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$result = new CommandError($e->getCode(), $e->getMessage()); |
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} |
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// Recover options from the end of the args |
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$options = end($args); |
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return $this->handleResults($output, $names, $result, $annotationData, $options); |
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} |
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public function validateRunAndAlter( |
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$names, |
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$commandCallback, |
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$args |
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) { |
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// Validators return any object to signal a validation error; |
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// if the return an array, it replaces the arguments. |
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$validated = $this->hookManager()->validateArguments($names, $args); |
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if (is_object($validated)) { |
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return $validated; |
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} |
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if (is_array($validated)) { |
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$args = $validated; |
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} |
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// Run the command, alter the results, and then handle output and status |
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$result = $this->runCommandCallback($commandCallback, $args); |
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return $this->processResults($names, $result, $args); |
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} |
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public function processResults($names, $result, $args = []) |
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{ |
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return $this->hookManager()->alterResult($names, $result, $args); |
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} |
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/** |
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* Handle the result output and status code calculation. |
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*/ |
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public function handleResults(OutputInterface $output, $names, $result, $annotationData, $options = []) |
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{ |
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$status = $this->hookManager()->determineStatusCode($names, $result); |
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if (is_integer($result) && !isset($status)) { |
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$status = $result; |
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$result = null; |
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} |
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$status = $this->interpretStatusCode($status); |
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// Get the structured output, the output stream and the formatter |
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$outputText = $this->hookManager()->extractOutput($names, $result); |
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$output = $this->chooseOutputStream($output, $status); |
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$formatter = $this->chooseFormatter($annotationData, $options, $status); |
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// Output the result text and return status code. |
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$this->writeCommandOutput($outputText, $formatter, $options, $output); |
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return $status; |
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} |
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/** |
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* Run the main command callback |
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*/ |
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protected function runCommandCallback($commandCallback, $args) |
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{ |
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$result = false; |
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try { |
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$result = call_user_func_array($commandCallback, $args); |
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} catch (\Exception $e) { |
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$result = new CommandError($e->getMessage(), $e->getCode()); |
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} |
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return $result; |
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} |
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/** |
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* Select the formatter to use. |
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* |
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* Note that if there is an error (status code is nonzero), |
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* then the result object is going to be an error object. This |
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* object may have a string that may be extracted and printed, |
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* but it should never be formatted per the --format option. |
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*/ |
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protected function chooseFormatter($annotationData, $options, $status) |
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{ |
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if ($status) { |
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return; |
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} |
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$format = $this->getFormat($options); |
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return $this->getFormatter($format, $annotationData); |
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} |
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/** |
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* Determine the formatter that should be used to render |
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* output. |
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* |
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* If the user specified a format via the --format option, |
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* then always return that. Otherwise, return the default |
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* format, unless --pipe was specified, in which case |
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* return the default pipe format, format-pipe. |
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* |
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* n.b. --pipe is a handy option introduced in Drush 2 |
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* (or perhaps even Drush 1) that indicates that the command |
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* should select the output format that is most appropriate |
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* for use in scripts (e.g. to pipe to another command). |
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*/ |
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protected function getFormat($options) |
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{ |
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$options += [ |
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'default-format' => false, |
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'pipe' => false, |
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]; |
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$options += [ |
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'format' => $options['default-format'], |
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'format-pipe' => $options['default-format'], |
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]; |
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$format = $options['format']; |
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if ($options['pipe']) { |
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$format = $options['format-pipe']; |
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} |
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return $format; |
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} |
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/** |
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* Determine whether we should use stdout or stderr. |
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*/ |
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protected function chooseOutputStream(OutputInterface $output, $status) |
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{ |
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// If the status code indicates an error, then print the |
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// result to stderr rather than stdout |
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if ($status && ($output instanceof ConsoleOutputInterface)) { |
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return $output->getErrorOutput(); |
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} |
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return $output; |
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} |
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/** |
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* If the result object is a string, then print it. |
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*/ |
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protected function writeCommandOutput( |
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$outputText, |
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$formatter, |
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$options, |
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OutputInterface $output |
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) { |
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// If there is a formatter, use it. |
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if (isset($outputText) && $formatter) { |
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$formatter->write($outputText, $options, $output); |
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return; |
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} |
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// If there is no formatter, we will print strings, |
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// but can do no more than that. |
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if (is_string($outputText)) { |
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$output->writeln($outputText); |
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} |
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} |
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/** |
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* If a status code was set, then return it; otherwise, |
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* presume success. |
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*/ |
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protected function interpretStatusCode($status) |
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{ |
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if (isset($status)) { |
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return $status; |
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} |
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return 0; |
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} |
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} |
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consolidation /
annotated-command
