Generates dbdoc database documentation for a given database.

<target name="update-database" depends="prepare">
    <fail unless="db.changelog.file">db.changelog.file not set</fail>
    <fail unless="database.url">database.url not set</fail>
 
    <fail unless="database.username">database.username not set</fail>
    <fail unless="database.password">database.password not set</fail>
 
    <taskdef resource="liquibasetasks.properties">
        <classpath refid="classpath"/>
 
    </taskdef>
 
    <dbDoc
            changeLogFile="${db.changelog.file}"
            driver="${database.driver}"
            url="${database.url}"
            username="${database.username}"
            password="${database.password}"
            outputDirectory="/path/to/doc/root/directory"
            classpathref="classpath"
            >
    </dbDoc>
</target>