Cookbook: How To Add SVN Revision To A JAR Manifest?

Summary

This recipe describes how to add SVN revision to a JAR manifest.

Prerequisite Plugins

Here is the list of the plugins used:

Plugin Version
jar 2.6
buildnumber 1.3

Sample Generated Manifest

Manifest-Version: 1.0
Archiver-Version: Plexus Archiver
Created-By: Apache Maven
Built-By: vsiveton
Build-Jdk: 1.5.0_12
SCM-Revision: 613393

Recipe

Configuring Mojo Buildnumber Plugin

We configure this plugin as suggested in the Mojo Buildnumber Plugin usage page.

<plugin>
  <groupId>org.codehaus.mojo</groupId>
  <artifactId>buildnumber-maven-plugin</artifactId>
  <executions>
    <execution>
      <phase>validate</phase>
      <goals>
        <goal>create</goal>
      </goals>
    </execution>
  </executions>
  <configuration>
    <doCheck>false</doCheck>
    <doUpdate>true</doUpdate>
  </configuration>
</plugin>

Configuring Maven Jar Plugin

The last configuration is to customize the default Manifest with a new entry for the SCM revision.

<plugin>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-jar-plugin</artifactId>
  <configuration>
    <archive>
      <manifestEntries>
        <SCM-Revision>${buildNumber}</SCM-Revision>
      </manifestEntries>
    </archive>
  </configuration>
</plugin>

Running Maven

Just call Maven to generate the package:

mvn package

Note: You need to have committed your project into SVN.

Other Tips

You could tweak the Jar Plugin configuration into the War Plugin.

Resources