build.xml

<!--
Copyright 2017 Samuel Lee Toepke

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->

<project name="HelloWorld" basedir="." default="run">
    
    <property name="main-class"      value="ant_test.HelloWorld"/>
    <property name="build.dir"       value="build"/>
    <property name="dist.dir"        value="dist"/>
    <property name="lib.dir"         value="lib"/>
    <property name="log4j.conf"      value="log4j2.xml"/>
    <property name="properties.file" value="config.properties"/>
    <property name="test.file" value="test.txt"/>
    <property name="resources.dir"   value="resources"/>
    <property name="src.dir"         value="src"/>
		
    <path id="build.classpath">
        <fileset dir="${lib.dir}/">
            <include name="${lib.dir}/*.jar"/>
        </fileset>
    </path>

    <path id="lib">
        <fileset dir="${lib.dir}" includes="**/*.jar"/>
    </path>
	
    <target name="clean" description="Clean directories.">
        <delete dir="${build.dir}"/>
        <delete dir="${dist.dir}"/>
    </target>

    <target name="compile" depends="clean" description="Compile all source code.">
        <mkdir dir="${build.dir}"/>
        <copy file="${resources.dir}/${log4j.conf}" todir="${build.dir}"/>
        <copy file="${resources.dir}/${properties.file}" todir="${build.dir}"/>
        <javac srcdir="${src.dir}" destdir="${build.dir}" classpathref="lib" debug="on" includeantruntime="false" />
    </target>

    <target name="dist" depends="compile" description="Create distribution .jar file.">
        <mkdir dir="${dist.dir}"/>
		
        <copy todir="${build.dir}/${lib.dir}" flatten="true">
            <path refid="build.classpath"/>
        </copy>
		
        <manifestclasspath property="manifest.classpath" jarfile="${dist.dir}/${ant.project.name}.jar">
            <classpath refid="build.classpath"/>
        </manifestclasspath>
		
        <pathconvert property="mf.classpath" pathsep=" ">
            <path refid="build.classpath"/>
                <mapper>
                    <chainedmapper>
                        <flattenmapper/>
                        <globmapper from="*.jar" to="lib/*.jar"/>
                    </chainedmapper>
                </mapper>
        </pathconvert>

        <jar destfile="${dist.dir}/${ant.project.name}.jar" basedir="${build.dir}" >
            <zipgroupfileset dir="${lib.dir}" includes="*.jar" excludes=""/>

            <manifest>
                <attribute name="Main-Class" value="${main-class}"/>
                <attribute name="Class-Path" value="${mf.classpath}"/>
            </manifest>
        </jar>
    </target>

    <target name="doc" depends="dist" description="Create the Javadocs.">
        <javadoc sourcepath="${src.dir}" 
            destdir="${build.dir}/doc" 
            classpathref="lib" 
            access="private" 
            packagenames="com.*" 
            version="true" 
            author="true" >

            <fileset dir="${src.dir}">
                <include name="**" />
            </fileset>
        </javadoc>	
    </target>

    <target name="run" depends="doc" description="Run the resulting .jar file.">
        <java jar="${dist.dir}/${ant.project.name}.jar" fork="true" />
    </target>
</project>