build.xml

<?xml version="1.0" ?>

<project name="clockwork-firebug" basedir="." default="build">

    <!-- Directories -->
    <property name="build.dir" value="./build/"/>
    <property name="xpi.filename" value="clockwork-firebug.xpi" />

    <target name="clean">
        <delete dir="${build.dir}" />
    </target>

    <target name="build" depends="clean">
        <antcall target="prepare-build" />
        <antcall target="create-xpi" />
        <antcall target="clean-after-build" />
    </target>

    <!-- Prepare build files -->
    <target name="prepare-build">
        <mkdir dir="${build.dir}" />

        <!-- Copy all files -->
        <copy todir="${build.dir}">
            <fileset dir=".">
                <include name="**/*.js"/>
                <include name="**/*.xul"/>
                <include name="**/*.properties"/>
                <include name="**/*.css"/>
                <include name="**/*.html"/>
                <include name="**/*.xml"/>
                <include name="**/*.dtd"/>
                <include name="**/*.png"/>
                <include name="**/*.gif"/>
                <include name="**/*.svg"/>
                <include name="**/*.ico"/>
                <include name="**/*.manifest"/>
                <include name="**/*.rdf"/>
                <include name="**/*.txt"/>
            </fileset>
        </copy>

        <!-- Remove unnecessary *.xml files in the root directory (like e.g. this build file),
        but not from sub directories. -->
        <delete dir="${build.dir}" includes="*.xml" />
        <delete dir="${build.dir}/.idea" />
    </target>

    <target name="create-xpi">
        <zip destfile="${build.dir}/${xpi.filename}" basedir="${build.dir}" update="true" />
    </target>

    <target name="clean-after-build">
        <delete includeemptydirs="true">
            <fileset dir="${build.dir}">
                <include name="**/*" />
                <exclude name="**/*.xpi" />
            </fileset>
        </delete>
    </target>
</project>