This repository contains various Checkstyle checks and modifications to support students in learning Java.

How to use this repository

• mvn package: Builds a JAR and stores it in target/ with the name checkstyle-teaching-1.0-SNAPSHOT.jar

• mvn install: Deploys the JAR locally

• mvn eclipse:eclipse: Generates an Eclipse project

• To enable the Checkstyle extensions of this repository in a Maven project, add the following to the pom.xml:

   <build>
      ...
    <plugins>
      ...
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-checkstyle-plugin</artifactId>
         <version>2.10</version>
         <configuration>
          ...
         </configuration>
         <dependencies>
           <dependency>
             <groupId>edu.kit.checkstyle</groupId>
             <artifactId>checkstyle-teaching</artifactId>
             <version>1.0-SNAPSHOT</version>
           </dependency>
         </dependencies>
       </plugin>
     </plugins>
   </build>
  

  After that the checkstyle plugin can be executed with mvn checkstyle:check. Remember to deploy the extensions with mvn install before doing a Checkstyle check.

• To enable the Checkstyle extensions of this repository on the command line, use the following command:

  java -classpath target/dependencies/*:\
  target/checkstyle-teaching-1.0-SNAPSHOT.jar:\
  lib/checkstyle-5.6-all.jar \
  com.puppycrawl.tools.checkstyle.Main \
  -c checkstyle.xml -r <path>
  

  where <path> denotes the location of the sources that should be checked.

Resources on how to learn modifying Checkstyle

• Writing Checks

• Maven Checkstyle Plugin

• Use Modifications with Maven

• Checkstyle Source repository