build.xml

<project name="som" basedir="." default="compile">

    <property name="src.dir"     value="src"/>
    <property name="test.dir"    value="tests"/>
    <property name="lib.dir"     value="libs" />
    <property name="build.dir"   value="build"/>
    <property name="classes.dir" value="${build.dir}/classes"/>
    <property name="junit.version" value="4.12" />

    <property name="checkstyle.version" value="8.36" />

    <property environment="env"/>

    <path id="project.classpath">
        <pathelement location="${classes.dir}" />
        <pathelement location="${test.dir}" />
        <pathelement location="${lib.dir}/junit-${junit.version}.jar" />
        <pathelement location="${lib.dir}/hamcrest-core-1.3.jar" />
    </path>

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

    <target name="eclipseformat">
      <pathconvert pathsep=" " property="javafiles">
        <fileset dir="${src.dir}">
          <include name="**/*.java"/>
        </fileset>
        <fileset dir="${test.dir}">
          <include name="**/*.java"/>
        </fileset>
      </pathconvert>
      <exec executable="${env.ECLIPSE_EXE}" dir="${basedir}">
          <arg value="-nosplash"/>
          <arg value="-application"/>
          <arg value="-consolelog"/>
          <arg value="-data"/>
          <arg value="${basedir}"/>
          <arg value="-vm"/>
          <arg value="${env.JAVA_HOME}/bin/java"/>
          <arg value="org.eclipse.jdt.core.JavaCodeFormatter"/>
          <arg value="-config"/>
          <arg value="${basedir}/.settings/org.eclipse.jdt.core.prefs"/>
          <arg line="${javafiles}"/>
      </exec>
      <exec executable="git" dir="${basedir}" failonerror="true">
          <arg value="status" />
          <arg value="*.java" />
      </exec>
      <exec executable="git" dir="${basedir}" failonerror="true">
          <arg value="diff-index" />
          <arg value="--quiet" />
          <arg value="HEAD" />
      </exec>
    </target>

    <target name="libs">
        <mkdir dir="${lib.dir}" />
        <get src="https://repo1.maven.org/maven2/junit/junit/${junit.version}/junit-${junit.version}.jar"
            usetimestamp="true"
            dest="${lib.dir}/junit-${junit.version}.jar" />
        <get src="https://repo1.maven.org/maven2/org/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3.jar"
            usetimestamp="true"
            dest="${lib.dir}/hamcrest-core-1.3.jar" />
    </target>

    <target name="checkstyle-jar">
        <mkdir dir="${lib.dir}" />
        <get src="https://github.com/checkstyle/checkstyle/releases/download/checkstyle-${checkstyle.version}/checkstyle-${checkstyle.version}-all.jar"
             usetimestamp="true"
             dest="${lib.dir}/checkstyle-${checkstyle.version}-all.jar" />
    </target>
    
    <target name="checkstyle" depends="checkstyle-jar" description="Check Code with Checkstyle">
        <taskdef resource="com/puppycrawl/tools/checkstyle/ant/checkstyle-ant-task.properties" classpath="${lib.dir}/checkstyle-${checkstyle.version}-all.jar" />
        <checkstyle config=".checkstyle_checks.xml">
          <fileset dir="src" includes="**/*.java"/>
          <formatter type="plain"/>
        </checkstyle>
    </target>

    <target name="compile" depends="libs">
        <mkdir dir="${classes.dir}" />
        <javac includeantruntime="false" srcdir="${src.dir}" destdir="${classes.dir}" debug="true" />
        <javac includeantruntime="false" srcdir="${test.dir}" destdir="${classes.dir}" debug="true">
          <classpath refid="project.classpath" />
        </javac>
    </target>

    <target name="jar" depends="compile">
        <mkdir dir="${build.dir}"/>
        <jar destfile="${build.dir}/som.jar" basedir="${classes.dir}">
        </jar>
    </target>

    <target name="unit-tests" depends="compile" description="Execute tests">
        <junit haltonerror="false" haltonfailure="false" failureproperty="test.failed"
            outputtoformatters="true">
            <jvmarg value="-ea" />
            <jvmarg value="-esa" />
            <classpath refid="project.classpath" />
            <batchtest fork="yes" filtertrace="false">
              <fileset dir="tests">
                  <include name="**/*Test*.java"/>
                  <include name="**/*TCK.java"/>
                  <exclude name="dym"/>
              </fileset>
            </batchtest>
            <formatter type="brief" usefile="false"/>
        </junit>

        <java classname="som.vm.Universe" fork="true" failonerror="true">
            <classpath refid="project.classpath" />
            <jvmarg value="-ea" />
            <jvmarg value="-esa" />
            <arg line="-cp Smalltalk TestSuite/TestHarness.som" />
        </java>
        <fail message="Basic tests failed." if="test.failed" />
    </target>

    <target name="test" depends="unit-tests">
    </target>
    <target name="tests" depends="test" />

</project>