Check codestyle on Travis

Author: OndraM

.gitignore

@@ -1,10 +1,11 @@
 composer.phar
 composer.lock
 vendor
+.php_cs.cache
 
 # generic files to ignore
 *.lock
 *.DS_Store
 *~
 *.swp
-.idea
+.idea

.php_cs

@@ -0,0 +1,41 @@
+<?php
+
+$finder = Symfony\CS\Finder\DefaultFinder::create()
+    ->in(array(__DIR__ . '/lib', __DIR__ . '/tests'));
+
+return Symfony\CS\Config\Config::create()
+    ->fixers(array(
+        'duplicate_semicolon',
+        'extra_empty_lines',
+        'multiline_array_trailing_comma',
+        'namespace_no_leading_whitespace',
+        'new_with_braces',
+        'no_blank_lines_after_class_opening',
+        'no_empty_lines_after_phpdocs',
+        'object_operator',
+        'operators_spaces',
+        'trim_array_spaces',
+        'phpdoc_indent',
+        'phpdoc_no_access',
+        'phpdoc_no_empty_return',
+        'phpdoc_no_package',
+        'phpdoc_scalar',
+        'phpdoc_trim',
+        'phpdoc_types',
+        'phpdoc_order',
+        'unused_use',
+        'ordered_use',
+        'remove_leading_slash_use',
+        'remove_lines_between_uses',
+        'function_typehint_space',
+        'self_accessor',
+        'single_array_no_trailing_comma',
+        'single_blank_line_before_namespace',
+        'single_quote',
+        'spaces_cast',
+        'whitespacy_lines',
+        'newline_after_open_tag',
+    ))
+    ->level(Symfony\CS\FixerInterface::PSR2_LEVEL)
+    ->setUsingCache(true)
+    ->finder($finder);

.travis.yml

@@ -10,6 +10,12 @@ php:
   - 7
   - hhvm
 
+matrix:
+  include:
+    # Add PHP 7 build to check codestyle only in PHP 7 build
+    - php: 7
+      env: CHECK_CODESTYLE=1
+
 env:
   global:
     - DISPLAY=:99.0
@@ -19,18 +25,21 @@ cache:
     - $HOME/.composer/cache
 
 before_install:
-  - composer self-update
+  - travis_retry composer self-update
 
 install:
-  - composer install --no-interaction --prefer-source
+  - travis_retry composer install --no-interaction --prefer-source
 
 before_script:
-  - sh -e /etc/init.d/xvfb start
-  - wget -q -t 3 http://selenium-release.storage.googleapis.com/2.45/selenium-server-standalone-2.45.0.jar
-  - java -jar selenium-server-standalone-2.45.0.jar -log selenium.log &
-  - until $(echo | nc localhost 4444); do sleep 1; echo waiting for selenium-server...; done;
-
-script: ./vendor/bin/phpunit
+  - if [ -z "$CHECK_CODESTYLE" ]; then sh -e /etc/init.d/xvfb start; fi
+  - if [ -z "$CHECK_CODESTYLE" ]; then wget -q -t 3 http://selenium-release.storage.googleapis.com/2.45/selenium-server-standalone-2.45.0.jar; fi
+  - if [ -z "$CHECK_CODESTYLE" ]; then java -jar selenium-server-standalone-2.45.0.jar -log selenium.log; fi &
+  - if [ -z "$CHECK_CODESTYLE" ]; then until $(echo | nc localhost 4444); do sleep 1; echo waiting for selenium-server...; done; fi
+
+script:
+  - if [ -n "$CHECK_CODESTYLE" ]; then ./vendor/bin/php-cs-fixer fix --diff --dry-run; fi
+  - if [ -n "$CHECK_CODESTYLE" ]; then ./vendor/bin/phpcs --standard=PSR2 ./lib/ ./tests/; fi
+  - if [ -z "$CHECK_CODESTYLE" ]; then ./vendor/bin/phpunit; fi
 
 after_script:
   - cat selenium.log

composer.json

@@ -15,7 +15,9 @@
     "ext-curl": "*"
   },
   "require-dev": {
-    "phpunit/phpunit": "4.6.* || ~5.0"
+    "phpunit/phpunit": "4.6.* || ~5.0",
+    "friendsofphp/php-cs-fixer": "^1.11",
+    "squizlabs/php_codesniffer": "^2.6"
   },
   "suggest": {
     "phpdocumentor/phpdocumentor": "2.*"