The svn-revision-number-maven-plugin could help you adding the SVN revision number to your built artifact. Configure your pom.xml as follow.

...
<build>
  <finalName>${project.artifactId}-r${svn.revision}</finalName>
  <plugins>
    <!-- Use the svn revision number for the built artifact -->
    <plugin>
      <groupId>com.google.code.maven-svn-revision-number-plugin</groupId>
      <artifactId>svn-revision-number-maven-plugin</artifactId>
      <version>1.13</version>
      <executions>
        <execution>
          <goals>
            <goal>revision</goal>
          </goals>
        </execution>
      </executions>
      <configuration>
        <entries>
          <entry>
            <prefix>svn</prefix> <!-- create the ${svn.revision} -->
          </entry>
        </entries>
      </configuration>
    </plugin>
  </plugins>
</build>
...

If you find the following error when running mvn package

• Failed to execute goal com.google.code.maven-svn-revision-number-plugin:svn-revision-number-maven-plugin:1.13:revision (default) on project MYPROJECT: svn: E155021: This client is too old to work with the working copy at…

Try adding the following dependencies

...
<pluginRepositories>
  <pluginRepository>
    <id>opencast-project-repository</id>
    <name>Opencast Project Repository</name>
    <url>http://repository.opencastproject.org/nexus/content/groups/public</url>
  </pluginRepository>
</pluginRepositories>
...
<build>
  <finalName>${project.artifactId}-r${svn.revision}</finalName>
  <plugins>
    <!-- Use the svn revision number for the built artifact -->
    <plugin>
      <groupId>com.google.code.maven-svn-revision-number-plugin</groupId>
      <artifactId>svn-revision-number-maven-plugin</artifactId>
      <version>1.13</version>
      <executions>
        <execution>
          <goals>
            <goal>revision</goal>
          </goals>
        </execution>
      </executions>
      <configuration>
        <entries>
          <entry>
            <prefix>svn</prefix> <!-- create the ${svn.revision} -->
          </entry>
        </entries>
      </configuration>
      <dependencies>
        <dependency>
          <groupId>org.tmatesoft.svnkit</groupId>
          <artifactId>svnkit</artifactId>
          <version>1.8.1</version>
        </dependency>
        <dependency>
          <groupId>org.tmatesoft.sqljet</groupId>
          <artifactId>sqljet</artifactId>
          <version>1.1.9</version>
        </dependency>
      </dependencies>
    </plugin>
  </plugins>
</build>
...

Done =)

Reference:

• Maven SVN Revision Number Plugin
• Adding the revision number to the project artifact name
• maven-svn-revision-number-plugin – Issue 18: SVN 1.8