merging clover db files with maven

[alex z]

Hello, i would like to produce a merged database containing the measured coverage of all databases found under for example /home/clover/

I found the way with ant :

<clover-merge initString="mergedcoverage.db">
    <cloverDbSet dir="/home/projects" span="30 mins">
          <include name="**/coverage.db"/>
    </cloverDbSet>
 </clover-merge>

How i can do it with maven?

[jjaroczynski]

Hi,

That's possible for multi-module maven project. There are two options:

• Define single database so submodules do not have separate databases:
  • define <singleCloverDatabase>true</singleCloverDatabase> in top-level pom.xml; sub-modules will inherit this setting
  • define <cloverDatabase>/path/to/network/drive/clover.db</cloverDatabase> in top-level pom.xml;
  • do not define <cloverDatabase> attribute in sub-modules, because it would override the singleCloverDatabase parameter
    
    
    <plugin>
    <groupId>com.atlassian.maven.plugins</groupId>
    <artifactId>maven-clover2-plugin</artifactId>
    <configuration>
    <cloverDatabase>/path/to/network/drive/clover.db</cloverDatabase>
    <singleCloverDatabase>true</singleCloverDatabase>
    </configuration>
    </plugin>

• Use separate databases for submodules and merge them before creating report:

  • Don't define <cloverDatabase> and <singleCloverDatabase> in top-level pom.xml so that default values will be used (relative path target/clover/clover.db and false).

  • Merge databases: "mvn clover2:aggregate"
    
    
    <!-- Top-level pom.xml -->

    <plugin>

    <groupId>com.atlassian.maven.plugins</groupId>

    <artifactId>maven-clover2-plugin</artifactId>

    <configuration>

    <cloverMergeDatabase>/path/to/network/drive/cloverMerged.db</cloverMergeDatabase>

    </configuration>

    </plugin>

Read more here: https://confluence.atlassian.com/display/CLOVER/Using+Clover+in+various+environment+configurations#UsingCloverinvariousenvironmentconfigurations-Scenario2-multi-moduleapplicationexecutedonseveralserversindependently

Cheers,
Jacek