improve coding standard testing

Author: xalopp

.travis.yml

@@ -14,4 +14,4 @@ before_script:
 
 script:
   - vendor/bin/phpunit --filter MO4
-  - vendor/bin/phpcs MO4 --report=full -np
+  - vendor/bin/phpcs

CONTRIBUTING.md

@@ -20,7 +20,7 @@ If you contribute code, please make sure it conforms to the PHPCS coding standar
 
 1. To check the coding standard, execute in the repository root:
 
-        ./vendor/bin/phpcs MO4
+        ./vendor/bin/phpcs
 
 2. To run the unit tests, execute in the repository root:
 

phpcs.mo4.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0"?>
+<ruleset name="PHP_CodeSniffer">
+    <description>The coding standard for PHP_CodeSniffer itself.</description>
+
+    <!-- Sensible default configuration settings for coding standard checking of MO4. -->
+    <file>MO4</file>
+
+    <exclude-pattern>*/Tests/*\.(inc|css|js)</exclude-pattern>
+    <exclude-pattern>vendor/*</exclude-pattern>
+
+    <arg name="basepath" value="."/>
+    <arg name="colors" />
+    <arg name="parallel" value="75" />
+    <arg value="np"/>
+</ruleset>

phpcs.xml.dist

@@ -1,9 +1,14 @@
 <?xml version="1.0"?>
 <ruleset name="PHP_CodeSniffer">
-    <description>The coding standard for PHP_CodeSniffer itself.</description>
+    <description>The coding standard for PHP_CodeSniffer itself, applied to MO4.</description>
 
-    <exclude-pattern>*/Tests/*\.(inc|css|js)</exclude-pattern>
-    <exclude-pattern>vendor/*</exclude-pattern>
+    <!-- Load sensible default configuration settings for coding standard checking of MO4. -->
+    <!-- These configuration settings can only be overridden by CLI! -->
+    <!-- The precedence order is: -->
+    <!--   1. CLI parameters -->
+    <!--   2. followed by configuration settings imported from rulesets, first come, first serve -->
+    <!--   3. and finally the configuration from this file itself! -->
+    <rule ref="phpcs.mo4.xml" />
 
     <rule ref="vendor/squizlabs/php_codesniffer/phpcs.xml.dist" />
 </ruleset>