build.xml

<?xml version="1.0" encoding="UTF-8"?>
<project name="nearly-optimal-mergesort" default="package">
    <property name="version" value="1.8"/>
    <property name="haltonfailure" value="no"/>
    <property name="out" value="out"/>
    <property name="dist.src" value="src"/>
    <property name="dist.lib" value="lib"/>
    <property name="dist.classes" value="${out}/dist/${ant.project.name}"/>
    <property name="dist.config" value="config"/>
    <property name="test.src" value="test"/>
    <property name="test.lib" value="lib"/>
    <property name="test.classes" value="${out}/test/${ant.project.name}"/>
    <property name="exploded" value="out/exploded/${ant.project.name}"/>
    <property name="exploded.classes" value="${exploded}/WEB-INF/classes"/>
    <property name="exploded.lib" value="${exploded}/WEB-INF/lib"/>
    <property name="reports.out" value="${out}/reports"/>
    <property name="junit.out" value="${reports.out}/junit"/>

    <path id="dist.classpath">
        <pathelement location="${dist.classes}"/>
        <pathelement location="${dist.config}"/>
        <fileset dir="${dist.lib}">
            <include name="**/*.jar"/>
            <exclude name="**/junit*.jar"/>
            <exclude name="**/*test*.jar"/>
        </fileset>
    </path>
    <path id="test.classpath">
        <path refid="dist.classpath"/>
        <pathelement location="${test.classes}"/>
        <fileset dir="${test.lib}">
            <include name="**/*.jar"/>
        </fileset>
    </path>

    <available file="${out}" property="outputExists"/>

    <target name="clean" description="remove all generated artifacts" if="outputExists">
        <delete dir="${out}" includeEmptyDirs="true"/>
        <delete dir="${reports.out}" includeEmptyDirs="true"/>
    </target>

    <target name="create" description="create the output directories"
            unless="outputExists">
        <mkdir dir="${dist.classes}"/>
        <mkdir dir="${test.classes}"/>
        <mkdir dir="${reports.out}"/>
        <mkdir dir="${junit.out}"/>
        <mkdir dir="${exploded.classes}"/>
        <mkdir dir="${exploded.lib}"/>
    </target>

    <target name="compile" description="compile all .java source files"
            depends="create">
        <!-- Debug output <property name="dist.class.path" refid="dist.class.path"/> <echo message="${dist.class.path}"/> -->
        <javac srcdir="src" destdir="${out}/dist/${ant.project.name}" debug="on"
               source="${version}">
            <classpath refid="dist.classpath"/>
            <include name="**/*.java"/>
        </javac>
        <javac srcdir="${test.src}" destdir="${out}/test/${ant.project.name}" debug="on"
               source="${version}">
            <classpath refid="test.classpath"/>
            <include name="**/*Test.java"/>
        </javac>
    </target>

    <target name="test" description="run all junit tests"
            depends="compile">
        <!-- Debug output <property name="test.class.path" refid="test.class.path"/> <echo message="${test.class.path}"/> -->
        <junit printsummary="yes" haltonfailure="${haltonfailure}">
            <classpath refid="test.classpath"/>
            <formatter type="xml"/>
            <batchtest fork="yes" todir="${junit.out}">
                <fileset dir="${test.src}">
                    <include name="**/*Test.java"/>
                </fileset>
            </batchtest>
        </junit>
        <junitreport todir="${junit.out}">
            <fileset dir="${junit.out}">
                <include name="TEST-*.xml"/>
            </fileset>
            <report todir="${junit.out}" format="frames"/>
        </junitreport>
    </target>

    <target name="exploded" description="create exploded deployment" depends="compile">
        <copy todir="${exploded.classes}">
            <fileset dir="${dist.classes}"/>
        </copy>
        <copy todir="${exploded.lib}">
            <fileset dir="${dist.lib}"/>
        </copy>
    </target>

    <target name="package" description="create package file" depends="exploded">
        <jar destfile="${out}/${ant.project.name}.jar" basedir="${dist.classes}"
             includes="**/*.class" manifest="${dist.config}/META-INF/MANIFEST.MF"/>
    </target>
</project>