build.xml

<?xml version="1.0" ?>

<project>

    <property name="plugin.path" value="MyPlugin"/>

    <path id="libs-classpath">
        <fileset dir="libs">
            <include name="*.jar"/>
        </fileset>

        <fileset dir="BaseLibs">
            <include name="*.jar"/>
        </fileset>
    </path>

    <target name="clean">
        <delete dir="out"/>
        <mkdir dir="out"/>
        <mkdir dir="out/classes"/>

        <first id="first">
            <fileset dir="src" includes="**/plugin.properties" />
        </first>
        <dirname file="${toString:first}" property="plugin.src.path"/>
        <property file="${plugin.src.path}/plugin.properties" />
        <echoproperties/>
        <copy todir="out" quiet="true" failonerror="false">
            <fileset dir="${plugin.src.path}">
                <include name="*.properties"/>
                <include name="help*.md"/>
            </fileset>
        </copy>
        <mkdir dir="out/lib"/>
        <mkdir dir="libs"/>
        <copydir src="libs" dest="out/lib" />
    </target>

    <target name="compile" depends="clean">
        <javac srcdir="src" destdir="out/classes" classpathref="libs-classpath"/>
    </target>

    <target name="package" depends="compile">
        <zip destfile="${plugin.path}/${plugin.id}-${plugin.version}.zip" basedir="out"/>
    </target>

</project>