21 May 2024 Leave a comment Tech-Help
Managing Maven builds can sometimes be challenging, especially when you need to conditionally execute certain plugins based on whether tests are being skipped. This guide provides a clear solution to skip a Maven plugin execution if either -DskipTests or -Dmaven.test.skip=true is specified.
Problem Statement
Imagine you have a Maven plugin that you typically want to run before your JUnit tests are executed. However, when tests are skipped using -DskipTests or -Dmaven.test.skip=true, you want to ensure that this plugin also does not run. How do you achieve this?
Solution
The most straightforward solution involves utilizing the skip property within the plugin’s configuration. Here are two approaches you can use:
Using Configuration Properties
One effective way is to directly set the skip property in your plugin’s configuration:
<configuration>
<skip>${skipTests}</skip>
</configuration>
Alternatively, you can use the maven.test.skip property:
<configuration>
<skip>${maven.test.skip}</skip>
</configuration>
Using Profiles
Another robust method is to use Maven profiles to manage the execution of the plugin based on the test skip properties. This approach provides greater flexibility and control:
<profiles>
<profile>
<id>default</id>
<activation>
<activeByDefault>true</activeByDefault>
</activation>
<properties>
<skipLiquibaseRun>false</skipLiquibaseRun>
</properties>
</profile>
<profile>
<id>skipTestCompileAndRun</id>
<activation>
<property>
<name>maven.test.skip</name>
<value>true</value>
</property>
</activation>
<properties>
<skipLiquibaseRun>true</skipLiquibaseRun>
</properties>
</profile>
<profile>
<id>skipTestRun</id>
<activation>
<property>
<name>skipTests</name>
</property>
</activation>
<properties>
<skipLiquibaseRun>true</skipLiquibaseRun>
</properties>
</profile>
</profiles>
Then, in your plugin configuration, you can use the skipLiquibaseRun property to control the execution:
<configuration>
<skip>${skipLiquibaseRun}</skip>
<driver>com.mysql.jdbc.Driver</driver>
<url>jdbc:mysql://${test.mysql.db.host}:${test.mysql.db.port}/${test.mysql.db.sid}</url>
<username>${test.mysql.db.user}</username>
<password>${test.mysql.db.password}</password>
<changeLogFile>${project.build.directory}/db.changelog-master.xml</changeLogFile>
<promptOnNonLocalDatabase>false</promptOnNonLocalDatabase>
</configuration>
Conclusion
By leveraging configuration properties or Maven profiles, you can effectively manage the conditional execution of plugins based on whether tests are being skipped. This ensures a smoother and more controlled build process.
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