enforce code style with php-cs in travis

.travis.yml

@@ -50,6 +50,7 @@ install:
 
 script:
   - vendor/bin/phpunit --coverage-clover clover.xml -c tests/phpunit.xml
+  - vendor/friendsofphp/php-cs-fixer/php-cs-fixer fix --dry-run --diff --diff-format udiff
 
 after_script:
  - wget https://scrutinizer-ci.com/ocular.phar

composer.json

@@ -10,7 +10,8 @@
 	],
 	"require"          : {
 		"php": ">=5.6",
-		"icewind/streams": ">=0.2.0"
+		"icewind/streams": ">=0.2.0",
+		"friendsofphp/php-cs-fixer": "^2.13"
 	},
 	"require-dev": {
 		"phpunit/phpunit": "^5.7"

src/Native/NativeFileInfo.php

@@ -53,7 +53,7 @@ class NativeFileInfo implements IFileInfo {
 
 		if (is_array($stat)) {
 			$this->statCache = $stat;
-		} else if (is_callable($stat)) {
+		} elseif (is_callable($stat)) {
 			$this->statCallback = $stat;
 		} else {
 			throw new \InvalidArgumentException('$stat needs to be an array or callback');

src/Native/NativeShare.php

@@ -94,7 +94,7 @@ class NativeShare extends AbstractShare {
 			$name = $file['name'];
 			if ($name !== '.' and $name !== '..') {
 				$fullPath = $path . '/' . $name;
-				$files [] = new NativeFileInfo($this, $fullPath, $name, function() use ($fullPath) {
+				$files [] = new NativeFileInfo($this, $fullPath, $name, function () use ($fullPath) {
 					return $this->getStat($fullPath);
 				});
 			}