Implement PHPStan (https://github.com/phpstan/phpstan)

CHANGELOG.md

@@ -9,6 +9,7 @@ Common and useful classes, methods, exceptions etc.
 3. Implement Mutation Testing Framework (infection/infection package)
 4. Travis CI > run many tasks using Phing (instead of PHPUnit only)
 5. Fix integration with [Coveralls](https://www.coveralls.io) (available as the badge in [README.md](README.md))
+6. Implement [PHPStan](https://github.com/phpstan/phpstan)
 
 # 1.0.1
 

composer.json

@@ -24,6 +24,7 @@
         "friendsofphp/php-cs-fixer": "^2.14",
         "infection/infection": "^0.11.4",
         "php-coveralls/php-coveralls": "^2.1",
+        "phpstan/phpstan": "^0.11.1",
         "phpunit/phpunit": "^8.0",
         "sebastian/phpcpd": "^4.1",
         "squizlabs/php_codesniffer": " ^2.9"

phing/properties.dist

@@ -63,6 +63,15 @@ dir.docker = ${project.basedir}/docker
 dir.docker.data = ${dir.docker}/data/db
 dir.docker.logs = ${dir.docker}/logs/nginx
 
+# --------------------------------------------------------------------------------
+# Static Analysis
+# --------------------------------------------------------------------------------
+
+# Paths of frameworks used to run analysis:
+# - PHPStan
+#
+check.phpstan.command = ./vendor/bin/phpstan analyse
+
 # --------------------------------------------------------------------------------
 # Testing
 # --------------------------------------------------------------------------------

phing/tests.xml

@@ -43,7 +43,8 @@
     <!-- Check target -->
     <target name="build:check"
             depends="check:cs,
-                    check:cpd"
+                    check:cpd,
+                    check:phpstan"
     />
 
     <!-- Test target -->
@@ -69,6 +70,11 @@
         </phpcpd>
     </target>
 
+    <!-- Run static analysis -->
+    <target name="check:phpstan" depends="build:prepare">
+        <exec command="${check.phpstan.command}" passthru="true"/>
+    </target>
+
     <!-- PHPUnit tests -->
     <target name="test:phpunit" depends="build:prepare">
         <exec command="${tests.phpunit.command}" passthru="true"/>

phpstan.neon.dist

@@ -0,0 +1,5 @@
+parameters:
+    level: 1
+    paths:
+        - src
+        - tests