Requirements

You need a sourceforge account and must be related to this project.

Than you have to set up your ~/.m2/settings.xml or C:\Document and Settings\YOUR USERNAME\.m2\settings.xml like this:

<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0
  http://maven.apache.org/xsd/settings-1.0.0.xsd">
  <profiles>
    <profile>
      <!-- It's your choice, must must be unique -->
      <id>simplespider-core</id>
      <activation>
        <!-- That should only used, if you want to activated this by default -->
        <activeByDefault>true</activeByDefault> 
      </activation>
      <properties>
         <sfUsername>YOUR SOURCEFORGE NAME</sfUsername>
         <sfPassword>YOUR SOURCEFORGE PASSWORD</sfPassword>
         <sfFrsPath>YOUR SFTP://FRS.SOURCEFORGE.NET PATH LIKE: home/users/b/be/berendona/uploads</sfFrsPath>
      </properties>
    </profile>
  </profiles>
</settings>

Perform release

How to create a release.

Prepare

At first you prepare the release. So you can define the created version number and the next one. Maven will also create a tag for this release:

$ mvn clean release:clean release:prepare

Perform

After preparing you can perform building release. For uploading project website, you need to create a shell on sourceforge. If you don't do this performing release will fail:

$ ssh -t YOUR_SOURCEFORGE_ACCOUNT,simplewebspider@shell.sourceforge.net create

So the assemblies will be built and uploaded to sftp://frs.sourceforge.net and page will be updated, too:

$ mvn release:perform

Cleanup

Sometime something happens, so we need to clean up. At first please delete created tag and than call also: 

$ mvn release:rollback

Simplified

You can perform preparing and performing in one step, too:

$ mvn clean release:clean release:prepare release:perform

Additional links