build.xml

<?xml version="1.0" encoding="UTF-8" ?>
<project name="twitty-console" default="run-spec">
  <!-- properties -->
  <property file="build.properties"/>

  <property name="build" value="build" />
  <property name="build.main" value="build/classes" />
  <property name="build.spec" value="build/spec-classes" />

  <property name="src.main" value="src/main/scala" />
  <property name="src.spec" value="src/spec/scala" />

  <!-- class paths -->
  <path id="classpath.main">
    <pathelement location="${scala.home}/lib/scala-library.jar" />
    <pathelement location="${build.main}" />
  </path>

  <path id="classpath.spec">
    <pathelement location="${scala.home}/lib/scala-library.jar" />
    <pathelement location="${scalatest.jar}" />
    <pathelement location="${build.main}" />
    <pathelement location="${build.spec}" />
  </path>

  <!-- build process -->
  <target name="prepare">
    <fail unless="scala.home"
          message="Set scala.home proprety in build.properties file." />
    <fail unless="scalatest.jar"
          message="Set scalatest.jar proprety in build.properties file." />

    <taskdef resource="scala/tools/ant/antlib.xml">
      <classpath>
        <pathelement location="${scala.home}/lib/scala-compiler.jar" />
        <pathelement location="${scala.home}/lib/scala-library.jar" />
      </classpath>
    </taskdef>

    <mkdir dir="${build.main}" />
    <mkdir dir="${build.spec}" />
  </target>

  <target name="compile-main" depends="prepare">
    <scalac srcdir="${src.main}"
            destdir="${build.main}"
            classpathref="classpath.main" >
      <include name="**/*.scala" />
    </scalac>
  </target>

  <target name="compile-spec" depends="compile-main">
    <taskdef name="scalatest"
             classname="org.scalatest.tools.ScalaTestAntTask">
      <classpath refid="classpath.spec"/>
    </taskdef>

    <scalac srcdir="${src.spec}"
            destdir="${build.spec}"
            classpathref="classpath.spec" >
      <include name="**/*.scala" />
    </scalac>
  </target>

  <target name="run-spec" depends="compile-spec">
    <scalatest runpath="${build.spec}" />
  </target>

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