Update: So many people seem to keep coming to this blog post from Mike Clark's blog that I feel it might make sense to mention that the WeblogPublisher has been incorporated into the CruiseControl distribution already a while ago. In other words, no need to download the stuff from the attached URLs--just use a recent enough version of CruiseControl and you're all set.

As I mentioned earlier, I set out to write a new publisher for CruiseControl.

I just added support for MetaWeblog API to go with the Blogger API. It was very straight-forward since it also uses XML-RPC.

This is what it looks like right now:

To start using it, just throw the publisher class to your CruiseControl main/src/net/sourceforge/cruisecontrol/publishers directory, download xmlrpc-1.2-b1.jar into the main/lib directory, rebuild cruisecontrol.jar with ant jar, and add these to your CruiseControl config.xml:

<cruisecontrol>
    <project name="foo">
        <plugin name="weblog" classname="net.sourceforge.cruisecontrol.publishers.WeblogPublisher"/>
        ...
        <publishers>
            <weblog blogurl="http://buildserver:8080/blog/xmlrpc"
                    api="metaWeblog|blogger"
                    blogid="blog"
                    username="lasse"
                    password="secret"
                    category="cruisecontrol"
                    reportsuccess="fixes"
                    subjectprefix="[CruiseControl]"
                    buildresultsurl="http://buildserver:8080/cruisecontrol/buildresults/myproject"
                    logdir="/cruisecontrol/logs/myproject"
                    xsldir="/cruisecontrol/reporting/jsp/xsl"
                    css="/cruisecontrol/reporting/jsp/css/cruisecontrol.css"/>
        </publishers>
    </project>
</cruisecontrol>

You can download the source code from:
WeblogPublisher.java (the publisher)
WeblogPublisherTest.java (unit tests)