feat: automatic code style checking

.gitignore

@@ -8,4 +8,9 @@ vendor/
 .idea/
 
 # Environment files
-.env/*.*
+.env/*.*
+
+# Local configs
+.php_cs
+.php_cs.cache
+phpunit.xml

.php_cs.dist

@@ -0,0 +1,33 @@
+<?php
+
+$finder = PhpCsFixer\Finder::create()
+    ->in(__DIR__ . '/lib');
+
+return PhpCsFixer\Config::create()
+    ->setRiskyAllowed(true)
+    ->setRules([
+        '@Symfony' => true,
+        'binary_operator_spaces' => array(
+            'align_equals' => false,
+            'align_double_arrow' => false,
+        ),
+        '@Symfony:risky' => true,
+        'array_syntax' => ['syntax' => 'short'],
+        'linebreak_after_opening_tag' => true,
+        'mb_str_functions' => true,
+        'no_php4_constructor' => true,
+        'no_unreachable_default_argument_value' => true,
+        'no_useless_else' => true,
+        'no_useless_return' => true,
+        'ordered_imports' => true,
+        'php_unit_strict' => true,
+        'phpdoc_order' => true,
+        'semicolon_after_instruction' => true,
+        'strict_comparison' => true,
+        'strict_param' => true,
+        'concat_space' => ['spacing' => 'one'],
+        'trailing_comma_in_multiline_array' => true,
+        'yoda_style' => false,
+    ])
+    ->setFinder($finder)
+    ->setCacheFile(__DIR__ . '/.php_cs.cache');

.travis.yml

@@ -1,20 +1,34 @@
 language: php
-before_script:
-- composer install --dev --no-interaction
-- cd test/unit
+
+php:
+  - 5.6
+  - 7.0
+
+cache:
+  directories:
+    - vendor
+    - $HOME/.composer/cache
+
+install:
+  - travis_retry composer self-update && composer --version
+  - export PATH="$HOME/.composer/vendor/bin:$PATH"
+  - travis_retry composer install --prefer-dist --no-interaction
+
 script:
-- ../../vendor/bin/phpunit . --bootstrap bootstrap.php --filter test* --coverage-clover=coverage.xml
+  - vendor/bin/php-cs-fixer fix --diff --dry-run
+  - vendor/bin/phpcs -s --config-set ignore_warnings_on_exit 1
+  - vendor/bin/phpunit --testsuite unit --coverage-clover=coverage.xml
+
 after_success:
-- bash <(curl -s https://codecov.io/bash)
-php:
-- 5.6
-- 7.0
+  - bash <(curl -s https://codecov.io/bash)
+
 env:
   global:
   - secure: eUN0huKA436uIkISu6V3yW01/gZHC6slBvlnprMPEhzclU2szH6qhWEXWS5CcOG6EEDBReqLZdNAwu+FC69KGFO9+6oW2GQQLSsfEViqFi/Ig2N0r4EBO4jLRebgq0GOfetPwQvJH27d8BCiloPy8rXBb5pskxSNw4B4bRyXHz4=
   - secure: j38xzMNmzYXR/JJdVumPmDoDVxb6FUDF497AuVPHowGh0egFW8XHWCOMeQWqWZI4Gg17pViQNIJ3xC6WBvob70AF8fsNm0+vxF2s7abXDMcbq5flLTS6ydKLgNu+na/RAkOBbTwxJAGIH/fQh8BH8iGKerCwoqf8sDErAge4NMw=
   - secure: h3HlxBOsNXBDrIJ0yl467ST6Q8R2TmbL7PltlPcRoHy5gAxn5UiDv5W2+6DSXrwQrTjOUunZ+O9ckcaQGQy1JNhGMwgIkJpyWAHDIHhTYGU289uUIDTHQW/soX0qHJSHSx3iMgDOIc7XnfTz6W7Nv1gYKZFedOMsZ5uBMeGyiXE=
   - secure: SKSl/RHFQNhGT7OUj7E0AbrQnuDhhCRI/4jC76mmzvy8EJBDgUNevAKJGtug+LVilHrlbk9fLC8rayPW6SGv0s3PowTGm8NMOc48aRBLOr7QRo/sMikJCmRuU6HWptr0NKuf2fq6lV94WDm/pDdyOSNyLga9/eaIDs/Sacp78sw=
+
 notifications:
   hipchat:
     rooms:

composer.json

@@ -1,36 +1,54 @@
 {
-    "name": "sendgrid/php-http-client",
-    "description": "HTTP REST client, simplified for PHP",
-    "type": "library",
-    "version": "3.9.6",
-    "homepage": "https://github.com/sendgrid/php-http-client",
-    "keywords": ["SendGrid", "HTTP", "REST", "API", "Fluent"],
-    "license": "MIT",
-    "authors": [
-        {
-            "name": "Matt Bernier",
-            "email": "dx@sendgrid.com"
-        },
-        {
-            "name": "Elmer Thomas",
-            "email": "elmer@thinkingserious.com"
-        }
-    ],
-    "require": {
-        "php": ">=5.6"
+  "name": "sendgrid/php-http-client",
+  "description": "HTTP REST client, simplified for PHP",
+  "type": "library",
+  "version": "3.9.6",
+  "homepage": "https://github.com/sendgrid/php-http-client",
+  "keywords": [
+    "SendGrid",
+    "HTTP",
+    "REST",
+    "API",
+    "Fluent"
+  ],
+  "license": "MIT",
+  "authors": [
+    {
+      "name": "Matt Bernier",
+      "email": "dx@sendgrid.com"
     },
-    "require-dev": {
-        "phpunit/phpunit": "~4.4",
-        "squizlabs/php_codesniffer": "~2.0"
-    },
-    "autoload": {
-        "psr-4": {
-            "SendGrid\\": "lib/"
-        }
-    },
-    "autoload-dev": {
-        "psr-4": {
-            "SendGrid\\Test\\": "test/unit/"
-        }
+    {
+      "name": "Elmer Thomas",
+      "email": "elmer@thinkingserious.com"
+    }
+  ],
+  "require": {
+    "php": ">=5.6",
+    "ext-json": "*",
+    "ext-curl": "*"
+  },
+  "require-dev": {
+    "phpunit/phpunit": "~4.8",
+    "friendsofphp/php-cs-fixer": "~2.10",
+    "squizlabs/php_codesniffer": "~3.3"
+  },
+  "autoload": {
+    "psr-4": {
+      "SendGrid\\": "lib/"
+    }
+  },
+  "autoload-dev": {
+    "psr-4": {
+      "SendGrid\\Test\\": "test/unit/"
     }
+  },
+  "scripts": {
+    "test": "phpunit --testsuite unit",
+    "php-cs-fix": "php-cs-fixer fix --diff --verbose --config=.php_cs",
+    "php-cs": "phpcs --standard=PSR1,PSR2 lib"
+  },
+  "config": {
+    "optimize-autoloader": true,
+    "sort-packages": true
+  }
 }