Enhancement: Enforce coding style with friendsofphp/php-cs-fixer (#109)

* Enhancement: Require friendsofphp/php-cs-fixer

* Enhancement: Add mimimum configuration for php-cs-fixer

* Enhancement: Add composer script

* Enhancement: Run php-cs-fixer against PHP5.3 on Travis

Author: localheinz

.gitignore

@@ -3,6 +3,7 @@
 Vagrantfile
 build/
 vendor/
+.php_cs.cache
 box.phar
 composer.lock
 composer.phar

.php_cs

@@ -0,0 +1,15 @@
+<?php
+
+$finder = PhpCsFixer\Finder::create()->in(__DIR__);
+
+$cacheDir = getenv('TRAVIS') ? getenv('HOME') . '/.php-cs-fixer' : __DIR__;
+
+return PhpCsFixer\Config::create()
+    ->setCacheFile($cacheDir . '/.php_cs.cache')
+    ->setFinder($finder)
+    ->setRules(array(
+        '@PSR2' => true,
+        'array_syntax' => array(
+            'syntax' => 'long',
+        ),
+    ));

.travis.yml

@@ -7,7 +7,7 @@ matrix:
     - php: 5.3
       env: WITH_LOWEST=true
     - php: 5.3
-      env: WITH_HIGHEST=true WITH_PHAR=true
+      env: WITH_HIGHEST=true WITH_CS=true WITH_PHAR=true
     - php: 5.4
       env: WITH_LOWEST=true
     - php: 5.4
@@ -32,6 +32,7 @@ matrix:
 cache:
   directories:
     - $HOME/.composer/cache
+    - $HOME/.php-cs-fixer
 
 before_install:
   - source .travis/travis.sh
@@ -45,8 +46,10 @@ install:
 before_script:
   - git config --global user.email "travis-ci@codeclimate.com"
   - git config --global user.name "Travis CI"
+  - mkdir -p "$HOME/.php-cs-fixer"
 
 script:
+  - if [[ "$WITH_CS" == "true" ]]; then vendor/bin/php-cs-fixer fix --config=.php_cs --verbose --diff --dry-run; fi
   - run-tests
 
 after_success:

composer.json

@@ -27,6 +27,7 @@
         "symfony/console": "^2.0 || ^3.0"
     },
     "require-dev": {
+        "friendsofphp/php-cs-fixer": "^2.0.0",
         "phpunit/phpunit": "^4.8.31"
     },
     "autoload": {
@@ -48,6 +49,10 @@
             "curl -LSs https://box-project.github.io/box2/installer.php | php",
             "php box.phar --version",
             "php box.phar build -v"
+        ],
+        "cs": [
+            "composer install --prefer-dist",
+            "php-cs-fixer fix --config=.php_cs --verbose --diff"
         ]
     },
     "extra": {