<?php

/*
* This file is part of Composer.
*
* (c) Nils Adermann <naderman@naderman.de>
* Jordi Boggiano <j.boggiano@seld.be>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/

namespace Composer\Command;

use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Input\InputArgument;

/**
* @author Davey Shafik <me@daveyshafik.com>
*/
class ExecCommand extends BaseCommand
{
protected function configure()
{
$this
->setName('exec')
->setDescription('Executes a vendored binary/script.')
->setDefinition(array(
new InputOption('list', 'l', InputOption::VALUE_NONE),
new InputArgument('binary', InputArgument::OPTIONAL, 'The binary to run, e.g. phpunit'),
new InputArgument(
'args',
InputArgument::IS_ARRAY | InputArgument::OPTIONAL,
'Arguments to pass to the binary. Use <info>--</info> to separate from composer arguments'
),
))
->setHelp(
<<<EOT
Executes a vendored binary/script.

Read more at https://getcomposer.org/doc/03-cli.md#exec
EOT
)
;
}

protected function execute(InputInterface $input, OutputInterface $output)
{
$composer = $this->getComposer();
$binDir = $composer->getConfig()->get('bin-dir');
if ($input->getOption('list') || !$input->getArgument('binary')) {
$bins = glob($binDir . '/*');
$bins = array_merge($bins, array_map(function ($e) {
return "$e (local)";
}, $composer->getPackage()->getBinaries()));

if (!$bins) {
throw new \RuntimeException("No binaries found in composer.json or in bin-dir ($binDir)");
}

$this->getIO()->write(
<<<EOT
<comment>Available binaries:</comment>
EOT
);

foreach ($bins as $bin) {
// skip .bat copies
if (isset($previousBin) && $bin === $previousBin.'.bat') {
continue;
}

$previousBin = $bin;
$bin = basename($bin);
$this->getIO()->write(
<<<EOT
<info>- $bin</info>
EOT
);
}

return 0;
}

$binary = $input->getArgument('binary');

$dispatcher = $composer->getEventDispatcher();
$dispatcher->addListener('__exec_command', $binary);
if ($output->getVerbosity() === OutputInterface::VERBOSITY_NORMAL) {
$output->setVerbosity(OutputInterface::VERBOSITY_QUIET);
}

// If the CWD was modified, we restore it to what it was initially, as it was
// most likely modified by the global command, and we want exec to run in the local working directory
// not the global one
if (getcwd() !== $this->getApplication()->getInitialWorkingDirectory()) {
try {
chdir($this->getApplication()->getInitialWorkingDirectory());
} catch (\Exception $e) {
throw new \RuntimeException('Could not switch back to working directory "'.$this->getApplication()->getInitialWorkingDirectory().'"', 0, $e);
}
}

return $dispatcher->dispatchScript('__exec_command', true, $input->getArgument('args'));
}
}