addOption(
'output',
null,
InputOption::VALUE_OPTIONAL,
'Output format (plain, json or json_pretty, default is plain)',
$this->defaultOutputFormat
)
;
}
protected function writeArrayInOutputFormat(InputInterface $input, OutputInterface $output, iterable $items, string $prefix = ' - '): void {
switch ($input->getOption('output')) {
case self::OUTPUT_FORMAT_JSON:
$items = (is_array($items) ? $items : iterator_to_array($items));
$output->writeln(json_encode($items));
break;
case self::OUTPUT_FORMAT_JSON_PRETTY:
$items = (is_array($items) ? $items : iterator_to_array($items));
$output->writeln(json_encode($items, JSON_PRETTY_PRINT));
break;
default:
foreach ($items as $key => $item) {
if (is_iterable($item)) {
$output->writeln($prefix . $key . ':');
$this->writeArrayInOutputFormat($input, $output, $item, ' ' . $prefix);
continue;
}
if (!is_int($key) || get_class($this) === ListCommand::class) {
$value = $this->valueToString($item);
if (!is_null($value)) {
$output->writeln($prefix . $key . ': ' . $value);
} else {
$output->writeln($prefix . $key);
}
} else {
$output->writeln($prefix . $this->valueToString($item));
}
}
break;
}
}
protected function writeTableInOutputFormat(InputInterface $input, OutputInterface $output, array $items): void {
switch ($input->getOption('output')) {
case self::OUTPUT_FORMAT_JSON:
$output->writeln(json_encode($items));
break;
case self::OUTPUT_FORMAT_JSON_PRETTY:
$output->writeln(json_encode($items, JSON_PRETTY_PRINT));
break;
default:
$table = new Table($output);
$table->setRows($items);
if (!empty($items) && is_string(array_key_first(reset($items)))) {
$table->setHeaders(array_keys(reset($items)));
}
$table->render();
break;
}
}
/**
* @param mixed $item
*/
protected function writeMixedInOutputFormat(InputInterface $input, OutputInterface $output, $item) {
if (is_array($item)) {
$this->writeArrayInOutputFormat($input, $output, $item, '');
return;
}
switch ($input->getOption('output')) {
case self::OUTPUT_FORMAT_JSON:
$output->writeln(json_encode($item));
break;
case self::OUTPUT_FORMAT_JSON_PRETTY:
$output->writeln(json_encode($item, JSON_PRETTY_PRINT));
break;
default:
$output->writeln($this->valueToString($item, false));
break;
}
}
protected function valueToString($value, bool $returnNull = true): ?string {
if ($value === false) {
return 'false';
} elseif ($value === true) {
return 'true';
} elseif ($value === null) {
return $returnNull ? null : 'null';
} else {
return $value;
}
}
/**
* Throw InterruptedException when interrupted by user
*
* @throws InterruptedException
*/
protected function abortIfInterrupted() {
if ($this->php_pcntl_signal === false) {
return;
}
pcntl_signal_dispatch();
if ($this->interrupted === true) {
throw new InterruptedException('Command interrupted by user');
}
}
/**
* Changes the status of the command to "interrupted" if ctrl-c has been pressed
*
* Gives a chance to the command to properly terminate what it's doing
*/
public function cancelOperation(): void {
$this->interrupted = true;
}
public function run(InputInterface $input, OutputInterface $output) {
// check if the php pcntl_signal functions are accessible
$this->php_pcntl_signal = function_exists('pcntl_signal');
if ($this->php_pcntl_signal) {
// Collect interrupts and notify the running command
pcntl_signal(SIGTERM, [$this, 'cancelOperation']);
pcntl_signal(SIGINT, [$this, 'cancelOperation']);
}
return parent::run($input, $output);
}
/**
* @param string $optionName
* @param CompletionContext $context
* @return string[]
*/
public function completeOptionValues($optionName, CompletionContext $context) {
if ($optionName === 'output') {
return ['plain', 'json', 'json_pretty'];
}
return [];
}
/**
* @param string $argumentName
* @param CompletionContext $context
* @return string[]
*/
public function completeArgumentValues($argumentName, CompletionContext $context) {
return [];
}
}
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