guacamole-client/extensions/guacamole-auth-jdbc/modules/guacamole-auth-jdbc-dist/project-assembly.xml

<assembly
    xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.0 http://maven.apache.org/xsd/assembly-1.1.0.xsd">

    <id>dist</id>
    <baseDirectory>${project.parent.artifactId}-${project.parent.version}</baseDirectory>

    <!-- Output .tar.gz -->
    <formats>
        <format>tar.gz</format>
    </formats>

    <!-- Include extension .jars -->
    <dependencySets>

        <!-- MySQL extension .jar -->
        <dependencySet>
            <outputDirectory>mysql</outputDirectory>
            <includes>
                <include>org.apache.guacamole:guacamole-auth-jdbc-mysql</include>
            </includes>
        </dependencySet>

        <!-- PostgreSQL extension .jar -->
        <dependencySet>
            <outputDirectory>postgresql</outputDirectory>
            <includes>
                <include>org.apache.guacamole:guacamole-auth-jdbc-postgresql</include>
            </includes>
        </dependencySet>

    </dependencySets>

    <!-- Include extension schema scripts -->
    <fileSets>

        <!-- MySQL schema scripts -->
        <fileSet>
            <outputDirectory>mysql/schema</outputDirectory>
            <directory>../guacamole-auth-jdbc-mysql/schema</directory>
        </fileSet>

        <!-- PostgreSQL schema scripts -->
        <fileSet>
            <outputDirectory>postgresql/schema</outputDirectory>
            <directory>../guacamole-auth-jdbc-postgresql/schema</directory>
        </fileSet>

    </fileSets>

</assembly>