build.xml

<?xml version="1.0"?>

<project name="nightlytt" default="dev">
  <!-- Directories -->
  <property name="xpi.dir" value="./xpi"/>

  <tstamp>
    <format property="build.number" pattern="yyyyMMddHHmm"/>
  </tstamp>

  <target name="release" depends="version"
          description="Builds a release version">
    <property name="xpi.filename" value="${ant.project.name}-${build.version}.xpi" />

    <antcall target="dev" />
  </target>

  <target name="dev" depends="clean, version"
          description="Builds a development version">
    <property name="xpi.filename" value="${ant.project.name}-${build.version}-${build.number}.xpi" />

    <mkdir dir="${xpi.dir}" />
    <zip destfile="${xpi.dir}/${xpi.filename}"
         basedir="extension"
         excludesfile=".gitignore"/>
  </target>

  <target name="clean"
          description="Clean-up XPI directory">
    <delete dir="${xpi.dir}"/>
  </target>

  <target name="version" unless="build.version"
          description="Shows the current version">
    <xmlproperty file="extension/install.rdf" collapseAttributes="true"/>
    <property name="build.version" value="${RDF.Description.em:version}"/>

    <echo>build.version: ${build.version}</echo>
  </target>

</project>