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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Console\Descriptor;
use Symfony\Component\Console\Application;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Exception\CommandNotFoundException;
/**
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*
* @internal
*/
class ApplicationDescription
{
const GLOBAL_NAMESPACE = '_global';
/**
* @var Application
*/
private $application;
/**
* @var null|string
*/
private $namespace;
/**
* @var array
*/
private $namespaces;
/**
* @var Command[]
*/
private $commands;
/**
* @var Command[]
*/
private $aliases;
/**
* Constructor.
*
* @param Application $application
* @param string|null $namespace
*/
public function __construct(Application $application, $namespace = null)
{
$this->application = $application;
$this->namespace = $namespace;
}
/**
* @return array
*/
public function getNamespaces()
{
if (null === $this->namespaces) {
$this->inspectApplication();
}
return $this->namespaces;
}
/**
* @return Command[]
*/
public function getCommands()
{
if (null === $this->commands) {
$this->inspectApplication();
}
return $this->commands;
}
/**
* @param string $name
*
* @return Command
*
* @throws CommandNotFoundException
*/
public function getCommand($name)
{
if (!isset($this->commands[$name]) && !isset($this->aliases[$name])) {
throw new CommandNotFoundException(sprintf('Command %s does not exist.', $name));
}
return isset($this->commands[$name]) ? $this->commands[$name] : $this->aliases[$name];
}
private function inspectApplication()
{
$this->commands = array();
$this->namespaces = array();
$all = $this->application->all($this->namespace ? $this->application->findNamespace($this->namespace) : null);
foreach ($this->sortCommands($all) as $namespace => $commands) {
$names = array();
/** @var Command $command */
foreach ($commands as $name => $command) {
if (!$command->getName()) {
continue;
}
if ($command->getName() === $name) {
$this->commands[$name] = $command;
} else {
$this->aliases[$name] = $command;
}
$names[] = $name;
}
$this->namespaces[$namespace] = array('id' => $namespace, 'commands' => $names);
}
}
/**
* @param array $commands
*
* @return array
*/
private function sortCommands(array $commands)
{
$namespacedCommands = array();
$globalCommands = array();
foreach ($commands as $name => $command) {
$key = $this->application->extractNamespace($name, 1);
if (!$key) {
$globalCommands['_global'][$name] = $command;
} else {
$namespacedCommands[$key][$name] = $command;
}
}
ksort($namespacedCommands);
$namespacedCommands = array_merge($globalCommands, $namespacedCommands);
foreach ($namespacedCommands as &$commandsSet) {
ksort($commandsSet);
}
// unset reference to keep scope clear
unset($commandsSet);
return $namespacedCommands;
}
}
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