The maven team is pleased to announce the Maven Source Control Management 
Plug-in 1.5-beta-4-SNAPSHOT release! 

http://maven.apache.org/reference/plugins/scm/

A plugin for SCM tasks, currently CVS. 

Changes in this version include:

  New Features:

o Add the ability to pass a username and password to the Subversion provider 
o Use maven.scm.bootstrap.pom.dir Issue: MPSCM-33. 
o Add support for subversion Issue: MPSCM-32. 
o Rewritten to utilise the Maven SCM library 

  Fixed bugs:

o Ignore whitespace when creating a patch Issue: MPSCM-25. 
o Ignore POM if the scm root is specified in command line 

  Changes:

o Check out into maven.scm.checkout.dirrather than a subdirectory of it  

To automatically install the plugin, type the following on a single line:

maven plugin:download 
  -DgroupId=maven 
  -DartifactId=maven-scm-plugin
  -Dversion=1.5-beta-4-SNAPSHOT

For a manual installation, you can download the plugin here:
http://www.apache.org/dyn/closer.cgi/java-repository/maven/plugins/maven-scm-plugin-1.5-beta-4-SNAPSHOT.jar
         

Have fun!
-The maven team