What?

This is a Maven Enforce plugin rules for validating a maven POM for required elements.

CI

Release

Why?

Currently (Februar 2021) there are no rules to enforce POM entries for licence, organisation and issueManagement.

How?

Add the rule at the enforcer plugin

<project>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-enforcer-plugin</artifactId>
                <version>3.0.0-M3</version>
                <dependencies>
                    <dependency>
                        <groupId>com.kiwigrid.maven.enforce</groupId>
                        <artifactId>pom-release-rules</artifactId>
                        <version>${version.release.rules}</version>
                    </dependency>
                </dependencies>
                <configuration>
                    <rules>
                        <ReleaseRule
                                implementation="com.kiwigrid.maven.enforce.rules.ReleaseRule">
                            <!-- rule configuration -->
                        </ReleaseRule>
                    </rules>
                </configuration>
                <executions>
                    <execution>
                        ...
                        <goals>
                            <goal>enforce</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

</project>

Rules

ReleaseRule

The rule is activated by configuring the enforcer plugin.

The rules provide the following checks:

• licence
  • validates the presents of the licences.licence entry and their values
• organisation
  • validates the presents of the organisation entry and their values
• issue management
  • validates the presents of the issueManagement entry and their values

Configuration

You may customize checks rules for dedicated entries.

<configuration>
    <ReleaseRule implementation="com.kiwigrid.maven.enforce.rules.ReleaseRule">
        <excludes>
          <exclude>
            <groupId></groupId>
            <artifactId></artifactId>
            <type></type>
            <version></version>
          </exclude>
          ...
        </excludes>
        <licence>
            <!-- options -->
            <skip>false</skip>
        </licence>
        <issueManagement>
            <!-- options -->
            <skip>false</skip>
        </issueManagement>
        <organisation>
            <!-- options -->
            <skip>false</skip>
        </organisation>
    </ReleaseRule>
</configuration>

The customization covers filter inspected projects and rule check details.

You can skip rule enforcement on maven project level to define rule settings in any parent.

The filter is applied based on excludes entries where all exclude elements are or joined.

<excludes>
  <exclude>
    <type>pom</type> <!-- exclude all pom artifacts -->
  </exclude>
  <exclude>
    <groupId>com.kiwigrid</groupId> 
    <artifact>draft</artifact> <!-- exclude all types and versions of a specific artifact -->
  </exclude>
</excludes>

Use the following options define the requirements of the pom entries to inspect:

Option	Default	Type	Meaning
licence.skip	false	boolean	skip <project><licences> validation
licence.name	required	Requirement	<project><licencences><licence><name>
licence.url	optional	Requirement	<project><licencences><licence><url>
licence.comments	optional	Requirement	<project><licencences><licence><comments>
licence.distribution	optional	Requirement	<project><licencences><licence><distribution>
issueManagement.skip	false	boolean	skip <project><issumeManagement> validation
issueManagement.url	required	Requirement	<project><issueManagement><url>
issueManagement.system	optional	Requirement	<project><issueManagement><system>
organisation.skip	false	boolean	skip <project><organisation> validation
organisation.name	required	Requirement	<project><organisation><name>
organisation.url	optional	Requirement	<project><organisation><url>

Requirement ::= enum {required, optional, forbidden}

Contribute

Release

Add your credentials of https://issues.sonatype.org/ into your settings.xml.

  <server>
      <id>ossrh</id>
      <username>...</username>
      <password>...</password>
  </server>

and publish via

mvn clean deploy -Dgpg.keyname=... -Dpgp.password=... -Prelease