Add scrutinizer config

.scrutinizer.yml

@@ -0,0 +1,45 @@
+before_commands:
+    - "composer install --no-dev --prefer-source"
+
+tools:
+    external_code_coverage:
+        enabled: true
+        timeout: 300
+        filter:
+            excluded_paths: ["tests", "vendor"]
+    php_code_coverage:
+        enabled: false
+        test_command: phpunit -c phpunit.xml.dist
+    php_code_sniffer:
+        enabled: true
+        config:
+            standard: PSR2
+        filter:
+            paths: ["src/*", "tests/*"]
+    php_cpd:
+        enabled: true
+        excluded_dirs: ["tests", "vendor"]
+    php_cs_fixer:
+        enabled: true
+        config:
+            level: all
+        filter:
+            paths: ["src/*", "tests/*"]
+    php_loc:
+        enabled: true
+        excluded_dirs: ["tests", "vendor"]
+    php_mess_detector:
+        enabled: true
+        config:
+            ruleset: phpmd.xml.dist
+            design_rules: { eval_expression: false }
+        filter:
+            paths: ["src/*"]
+    php_pdepend:
+        enabled: true
+        excluded_dirs: ["tests", "vendor"]
+    php_analyzer:
+        enabled: true
+        filter:
+            paths: ["src/*", "tests/*"]
+    sensiolabs_security_checker: true

phpmd.xml.dist

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<ruleset
+    name="ProxyManager rules"
+    xmlns="http://pmd.sf.net/ruleset/1.0.0"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://pmd.sf.net/ruleset/1.0.0 http://pmd.sf.net/ruleset_xml_schema.xsd"
+    xsi:noNamespaceSchemaLocation="http://pmd.sf.net/ruleset_xml_schema.xsd"
+>
+    <rule ref="rulesets/codesize.xml"/>
+    <rule ref="rulesets/unusedcode.xml"/>
+    <rule ref="rulesets/design.xml">
+        <!-- eval is needed to generate runtime classes -->
+        <exclude name="EvalExpression"/>
+    </rule>
+    <rule ref="rulesets/naming.xml">
+        <exclude name="LongVariable"/>
+    </rule>
+    <rule ref="rulesets/naming.xml/LongVariable">
+        <properties>
+            <property name="minimum">40</property>
+        </properties>
+    </rule>
+</ruleset>