build.xml

<project name="LUALUA" default="main">
    <condition property="is_windows">
        <os family="windows"/>
    </condition>
    <condition property="is_unix">
        <os family="unix" />
    </condition>

    <target name="make_archive">
        <copy todir="build/LuaLua">
            <fileset dir="LuaLua" />
        </copy>
        <zip zip64Mode="never" destfile="build/LuaLua.zip" basedir="build/LuaLua" />
    </target>

    <target name="if_windows" if="is_windows" depends="make_archive">
        <exec executable="certutil">
            <arg value="-encode" />
            <arg value="build/LuaLua.zip" />
            <arg value="build/LuaLua.zip.base64" />
        </exec>
    </target>

    <target name="if_unix" if="is_unix" depends="make_archive">
        <exec executable="base64">
            <arg value="-i" />
            <arg value="build/LuaLua.zip" />
            <arg value="-o" />
            <arg value="build/LuaLua.zip.base64" />
        </exec>
    </target>

    <target name="main" depends="if_windows, if_unix">
    </target>
</project>