Neos\Flow\Command\HelpCommandController::displayHelpForCommand PHP Method

    protected function displayHelpForCommand(Command $command)
    {
        $this->outputLine();
        $this->outputLine('<u>' . $command->getShortDescription() . '</u>');
        $this->outputLine();
        $this->outputLine('<b>COMMAND:</b>');
        $name = '<i>' . $command->getCommandIdentifier() . '</i>';
        $this->outputLine('%-2s%s', [' ', $name]);
        $commandArgumentDefinitions = $command->getArgumentDefinitions();
        $usage = '';
        $hasOptions = false;
        /** @var CommandArgumentDefinition $commandArgumentDefinition */
        foreach ($commandArgumentDefinitions as $commandArgumentDefinition) {
            if (!$commandArgumentDefinition->isRequired()) {
                $hasOptions = true;
            } else {
                $usage .= sprintf(' <%s>', strtolower(preg_replace('/([A-Z])/', ' $1', $commandArgumentDefinition->getName())));
            }
        }
        $usage = $this->commandManager->getShortestIdentifierForCommand($command) . ($hasOptions ? ' [<options>]' : '') . $usage;
        $this->outputLine();
        $this->outputLine('<b>USAGE:</b>');
        $this->outputLine('  %s %s', [$this->getFlowInvocationString(), $usage]);
        $argumentDescriptions = [];
        $optionDescriptions = [];
        if ($command->hasArguments()) {
            foreach ($commandArgumentDefinitions as $commandArgumentDefinition) {
                $argumentDescription = $commandArgumentDefinition->getDescription();
                $argumentDescription = wordwrap($argumentDescription, $this->output->getMaximumLineLength() - 23, PHP_EOL . str_repeat(' ', 23), true);
                if ($commandArgumentDefinition->isRequired()) {
                    $argumentDescriptions[] = vsprintf('  %-20s %s', [$commandArgumentDefinition->getDashedName(), $argumentDescription]);
                } else {
                    $optionDescriptions[] = vsprintf('  %-20s %s', [$commandArgumentDefinition->getDashedName(), $argumentDescription]);
                }
            }
        }
        if (count($argumentDescriptions) > 0) {
            $this->outputLine();
            $this->outputLine('<b>ARGUMENTS:</b>');
            foreach ($argumentDescriptions as $argumentDescription) {
                $this->outputLine($argumentDescription);
            }
        }
        if (count($optionDescriptions) > 0) {
            $this->outputLine();
            $this->outputLine('<b>OPTIONS:</b>');
            foreach ($optionDescriptions as $optionDescription) {
                $this->outputLine($optionDescription);
            }
        }
        if ($command->getDescription() !== '') {
            $this->outputLine();
            $this->outputLine('<b>DESCRIPTION:</b>');
            $descriptionLines = explode(chr(10), $command->getDescription());
            foreach ($descriptionLines as $descriptionLine) {
                $this->outputLine('%-2s%s', [' ', $descriptionLine]);
            }
        }
        $relatedCommandIdentifiers = $command->getRelatedCommandIdentifiers();
        if ($relatedCommandIdentifiers !== []) {
            $this->outputLine();
            $this->outputLine('<b>SEE ALSO:</b>');
            foreach ($relatedCommandIdentifiers as $commandIdentifier) {
                try {
                    $command = $this->commandManager->getCommandByIdentifier($commandIdentifier);
                    $this->outputLine('%-2s%s (%s)', [' ', $commandIdentifier, $command->getShortDescription()]);
                } catch (CommandException $exception) {
                    $this->outputLine('%-2s%s (%s)', [' ', $commandIdentifier, '<i>Command not available</i>']);
                }
            }
        }
        $this->outputLine();
    }