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<?php namespace Tarsana\Command\Config;
use Tarsana\Command\Config\Config;
use Tarsana\Command\Helpers\Decoders\JsonDecoder;
use Tarsana\Command\Interfaces\Config\ConfigInterface;
use Tarsana\Command\Interfaces\Config\ConfigLoaderInterface;
use Tarsana\IO\Interfaces\Filesystem as FilesystemInterface;
/**
* Loads configuration from multiple files.
*/
class ConfigLoader implements ConfigLoaderInterface {
protected static $decoders = [
'json' => JsonDecoder::class
];
protected $fs;
public function __construct(FilesystemInterface $fs)
{
$this->fs = $fs;
}
public function load(array $paths) : ConfigInterface
if (empty($paths))
return new Config([]);
$data = [];
foreach ($paths as $path) {
$data[] = $this->decode($path);
$data = call_user_func_array('array_replace_recursive', $data);
return new Config($data);
protected function decode(string $path) : array {
if (! $this->fs->isFile($path))
return [];
$file = $this->fs->file($path);
$ext = $file->extension();
if (! array_key_exists($ext, static::$decoders))
throw new \Exception("Unknown configuration file extension '{$ext}'");
$decoderClass = static::$decoders[$ext];
$decoder = new $decoderClass;
return $decoder->decode($file->content());
tarsana /
command
