Add PHP Codesniffer rules

.gitignore

@@ -20,7 +20,12 @@ composer.lock
 vendor/.git
 vendor/*/.git
 vendor/composer/
+vendor/bin/
 vendor/autoload.php
+vendor/phpcompatibility/
+vendor/squizlabs/
+vendor/dealerdirect/
+wpcs/
 
 ### Node ###
 node_modules/*
@@ -34,6 +39,8 @@ package-lock.json
 .tx
 languages/gravityview-pt.mo
 languages/gravityview-pt.po
+languages/gravityview-de.mo
+languages/gravityview-de.po
 
 ### PhpStorm ###
 # Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm
@@ -77,10 +84,6 @@ assets/lib/flexibility/*
 
 # JIRA plugin
 atlassian-ide-plugin.xml
-languages/gravityview-de.mo
-
-
-languages/gravityview-de.po
 
 # DoxyGen
 docs/config.doxygen

composer.json

@@ -12,7 +12,11 @@
     }
   ],
   "require": {
-    "php": ">=5.3",
-    "katzwebservices/standalone-phpenkoder": "dev-master"
+    "php": ">=5.3"
+  },
+  "require-dev": {
+    "dealerdirect/phpcodesniffer-composer-installer": "^0.5.0",
+    "phpcompatibility/phpcompatibility-wp": "*",
+    "wp-coding-standards/wpcs": "*"
   }
 }

phpcs.xml.dist

@@ -0,0 +1,93 @@
+<?xml version="1.0"?>
+<ruleset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" name="GravityView" xsi:noNamespaceSchemaLocation="https://raw.githubusercontent.com/squizlabs/PHP_CodeSniffer/master/phpcs.xsd">
+
+	<description>A custom set of PHP Code Sniffer rules for GravityView plugin.</description>
+
+	<!-- Exclude the Composer Vendor directory. -->
+	<exclude-pattern>/vendor/*</exclude-pattern>
+
+	<!-- Exclude the Node Modules directory. -->
+	<exclude-pattern>/node_modules/*</exclude-pattern>
+
+	<!-- Exclude minified Javascript files. -->
+	<exclude-pattern>*.min.js</exclude-pattern>
+
+    <rule ref="WordPress">
+		<exclude name="Generic" />
+		<exclude name="Squiz" />
+		<exclude name="PEAR" />
+		<exclude name="MySource" />
+		<exclude name="PSR1" />
+		<exclude name="PSR12" />
+		<exclude name="PSR2" />
+		<exclude name="Zend" />
+    </rule>
+
+	<!-- Include the WordPress-Extra standard. -->
+	<rule ref="WordPress-Extra">
+		<!--
+		We may want a middle ground though. The best way to do this is add the
+		entire ruleset, then rule by rule, remove ones that don't suit a project.
+		We can do this by running `phpcs` with the '-s' flag, which allows us to
+		see the names of the sniffs reporting errors.
+		Once we know the sniff names, we can opt to exclude sniffs which don't
+		suit our project like so.
+
+		The below two examples just show how you can exclude rules.
+		They are not intended as advice about which sniffs to exclude.
+		-->
+
+		<exclude name="WordPress.WhiteSpace.ControlStructureSpacing"/>
+		<exclude name="WordPress.Security.NonceVerification.Missing"/>
+		<exclude name="WordPress.Security.EscapeOutput.OutputNotEscaped"/>
+	</rule>
+
+	<!-- Let's also check that everything is properly documented. -->
+	<rule ref="WordPress-Docs"/>
+
+	<!-- Add in some extra rules from other standards. -->
+	<rule ref="Generic.CodeAnalysis.UnusedFunctionParameter"/>
+	<rule ref="Generic.Commenting.Todo"/>
+
+	<!-- Check for PHP cross-version compatibility. -->
+	<!--
+	To enable this, the PHPCompatibilityWP standard needs
+	to be installed.
+	See the readme for installation instructions:
+	https://github.com/PHPCompatibility/PHPCompatibilityWP
+	For more information, also see:
+	https://github.com/PHPCompatibility/PHPCompatibility
+	-->
+	<config name="testVersion" value="5.3-"/>
+	<rule ref="PHPCompatibilityWP"/>
+
+
+	<!--
+	To get the optimal benefits of using WPCS, we should add a couple of
+	custom properties.
+	Adjust the values of these properties to fit our needs.
+
+	For information on additional custom properties available, check out
+	the wiki:
+	https://github.com/WordPress-Coding-Standards/WordPress-Coding-Standards/wiki/Customizable-sniff-properties
+	-->
+	<config name="minimum_supported_wp_version" value="4.4"/>
+
+	<rule ref="WordPress.WP.I18n">
+		<properties>
+			<property name="text_domain" type="array">
+				<element value="gravityview"/>
+			</property>
+		</properties>
+	</rule>
+
+	<rule ref="WordPress.NamingConventions.PrefixAllGlobals">
+		<properties>
+			<property name="prefixes" type="array">
+				<element value="gv"/>
+				<element value="gravityview"/>
+			</property>
+		</properties>
+	</rule>
+
+</ruleset>