build.xml

<?xml version="1.0" encoding="ISO-8859-1"?>
<project name="firefox extension" default="build">

    <property name="extension.guid" value="A6A0B3F6-6D2D-4c55-96C1-7481BEA2EBF8" />
    <property name="extension.name" value="datepicker" />
    <property name="extension.full.name" value="Date Picker/Calendar" />
    <property name="extension.short.name" value="${extension.full.name}" />
    <property name="extension.author" value="James Cook" />
    <property name="extension.version" value="2.2" />
    <property name="base.url" value="http://www.jamescookie.com" />
    <property name="extensions.url" value="${base.url}/extensions/" />
    <property name="extension.description" value="Quick popup allowing you to view a calendar/pick a date." />

    <property name="build.directory" value="build" />
    <property name="tmp.directory" value="tmp" />

    <target name="build" depends="clean,increment.version">
        <mkdir dir="${build.directory}"/>
        <mkdir dir="${tmp.directory}"/>

        <property file="version.properties"/>

        <copy todir="${tmp.directory}">
            <fileset dir="${extension.name}">
                <exclude name=".svn/**"/>
				<exclude name="**/*.png"/>
            </fileset>
            <filterset>
                <filter token="AUTHOR" value="${extension.author}"/>
                <filter token="VERSION" value="${extension.version}.${build.number}"/>
                <filter token="EXTENSION" value="${extension.name}"/>
                <filter token="EXTENSION_SHORT_NAME" value="${extension.short.name}"/>
                <filter token="EXTENSION_FULL" value="${extension.full.name}"/>
                <filter token="BASE_URL" value="${base.url}"/>
                <filter token="EXTENSIONS_URL" value="${extensions.url}"/>
                <filter token="DESCRIPTION" value="${extension.description}"/>
                <filter token="GUID" value="${extension.guid}"/>
            </filterset>
        </copy>
        <copy todir="${tmp.directory}">
            <fileset dir="${extension.name}">
				<include name="**/*.png"/>
            </fileset>
        </copy>

        <zip destfile="${build.directory}/${extension.name}-${extension.version}.${build.number}.xpi">
            <fileset dir="${tmp.directory}">
            </fileset>
        </zip>
        <echo message="*** Built version: ${build.number} ***"/>
    </target>

    <target name="clean">
        <delete dir="${build.directory}" failonerror="true"/>
        <delete dir="${tmp.directory}" failonerror="true"/>
    </target>

    <target name="increment.version">
        <propertyfile file="version.properties" comment="Build version info">
            <entry key="build.number" default="0" type="int" operation="+" value="1"/>
        </propertyfile>
    </target>
</project>