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<?php
namespace Stecman\Component\Symfony\Console\BashCompletion;
use Symfony\Component\Console\Command\Command as SymfonyCommand;
use Symfony\Component\Console\Input\InputDefinition;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\OutputInterface;
class CompletionCommand extends SymfonyCommand
{
/**
* @var CompletionHandler
*/
protected $handler;
protected function configure()
{
$this
->setName('_completion')
->setDefinition($this->createDefinition())
->setDescription('BASH completion hook.')
->setHelp(<<<END
To enable BASH completion, run:
<comment>eval `[program] _completion -g`</comment>.
Or for an alias:
<comment>eval `[program] _completion -g -p [alias]`</comment>.
END
);
}
/**
* {@inheritdoc}
*/
public function getNativeDefinition()
{
return $this->createDefinition();
}
protected function execute(InputInterface $input, OutputInterface $output)
{
$this->handler = new CompletionHandler($this->getApplication());
$handler = $this->handler;
if ($input->getOption('generate-hook')) {
global $argv;
$program = $argv[0];
$factory = new HookFactory();
$alias = $input->getOption('program');
$multiple = (bool)$input->getOption('multiple');
// When completing for multiple apps having absolute path in the alias doesn't make sense.
if (!$alias && $multiple) {
$alias = basename($program);
}
$hook = $factory->generateHook(
$input->getOption('shell-type') ?: $this->getShellType(),
$program,
$alias,
$multiple
);
$output->write($hook, true);
} else {
$handler->setContext(new EnvironmentCompletionContext());
$output->write($this->runCompletion(), true);
}
}
/**
* Run the completion handler and return a filtered list of results
*
* @deprecated - This will be removed in 1.0.0 in favour of CompletionCommand::configureCompletion
*
* @return string[]
*/
protected function runCompletion()
{
$this->configureCompletion($this->handler);
return $this->handler->runCompletion();
}
/**
* Configure the CompletionHandler instance before it is run
*
* @param CompletionHandler $handler
*/
protected function configureCompletion(CompletionHandler $handler)
{
// Override this method to configure custom value completions
}
/**
* Determine the shell type for use with HookFactory
*
* @return string
*/
protected function getShellType()
{
if (!getenv('SHELL')) {
throw new \RuntimeException('Could not read SHELL environment variable. Please specify your shell type using the --shell-type option.');
}
return basename(getenv('SHELL'));
}
protected function createDefinition()
{
return new InputDefinition(array(
new InputOption(
'generate-hook',
'g',
InputOption::VALUE_NONE,
'Generate BASH code that sets up completion for this application.'
),
new InputOption(
'program',
'p',
InputOption::VALUE_REQUIRED,
"Program name that should trigger completion\n<comment>(defaults to the absolute application path)</comment>."
),
new InputOption(
'multiple',
'm',
InputOption::VALUE_NONE,
"Generated hook can be used for multiple applications."
),
new InputOption(
'shell-type',
null,
InputOption::VALUE_OPTIONAL,
'Set the shell type (zsh or bash). Otherwise this is determined automatically.'
),
));
}
}