build.xml

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<project basedir="." default="build" name="jamm" xmlns:ivy="antlib:org.apache.ivy.ant">
  <property name="debuglevel" value="source,lines,vars"/>
  <property name="version" value="0.3.2-SNAPSHOT"/>

  <property name="basedir" value="."/>
  <property name="build.src" value="${basedir}/src"/>
  <property name="build.dir" value="${basedir}/target"/>
  <property name="build.lib" value="${build.dir}/lib"/>
  <property name="build.classes" value="${build.dir}/classes"/>
  <property name="build.javadoc" value="${build.dir}/javadoc"/>
  <property name="build.sonatype" value="${build.dir}/sonatype"/>
  <property name="jar.name" value="jamm-${version}.jar"/>
  <property name="jar.src.name" value="jamm-${version}-sources.jar"/>
  <property name="jar.javadoc.name" value="jamm-${version}-javadoc.jar"/>
  <property name="jar.pom.name" value="jamm-${version}.pom"/>

  <property name="test.src" value="${basedir}/test"/>
  <property name="test.classes" value="${build.dir}/test/classes"/>
  <property name="test.out" value="${build.dir}/test/output"/>
  <property name="test.name" value="*Test"/>

  <property name="ivy.version" value="2.1.0" />
  <property name="ivy.url"
            value="http://repo2.maven.org/maven2/org/apache/ivy/ivy" />

  <condition property="ivy.jar.exists">
    <available file="${build.dir}/ivy-${ivy.version}.jar" />
  </condition>

  <target name="ivy-download" unless="ivy.jar.exists">
    <echo>Downloading Ivy...</echo>
    <mkdir dir="${build.dir}" />
    <get src="${ivy.url}/${ivy.version}/ivy-${ivy.version}.jar"
         dest="${build.dir}/ivy-${ivy.version}.jar" usetimestamp="true" />
  </target>

  <target name="ivy-init" depends="ivy-download" unless="ivy.initialized">
    <mkdir dir="${build.lib}"/>
    <taskdef resource="org/apache/ivy/ant/antlib.xml"
             uri="antlib:org.apache.ivy.ant"
             classpathref="autoivy.classpath"/>
    <property name="ivy.initialized" value="true"/>
  </target>

  <target name="ivy-retrieve-build" depends="ivy-init">
    <ivy:retrieve type="jar,source" sync="true"
           pattern="${build.lib}/[type]s/[artifact]-[revision].[ext]" />
  </target>

  <path id="autoivy.classpath">
    <fileset dir="${build.lib}">
      <include name="**/*.jar" />
    </fileset>
    <pathelement location="${build.dir}/ivy-${ivy.version}.jar"/>
  </path>

  <target name="init" depends="ivy-retrieve-build">
    <mkdir dir="${build.classes}"/>
    <mkdir dir="${test.classes}"/>
  </target>
	
  <target name="clean" description="deletes generated artifacts">
    <delete dir="${build.dir}"/>
  </target>

  <target depends="init" name="build">
    <echo message="${ant.project.name}: ${ant.file}"/>
    <javac source="1.6" target="1.6" debug="true" debuglevel="${debuglevel}" destdir="${build.classes}" includeantruntime="false">
      <src path="${build.src}"/>
      <compilerarg value="-XDignore.symbol.file"/>
    </javac>
  </target>

  <target name="jar" depends="build" description="generates the jamm jar">
    <jar jarfile="${build.dir}/${jar.name}" basedir="${build.classes}">
      <manifest>
        <!-- see http://download.oracle.com/javase/6/docs/api/java/lang/instrument/package-summary.html -->
        <attribute name="Agent-Class" value="org.github.jamm.MemoryMeter"/>
        <attribute name="Premain-Class" value="org.github.jamm.MemoryMeter"/>
      </manifest>
    </jar>
  </target>

  <target name="build-test" depends="jar" description="Compile test classes">
    <javac source="1.6" target="1.6" debug="true" debuglevel="${debuglevel}" destdir="${test.classes}" includeantruntime="false">
      <classpath>
        <path refid="autoivy.classpath"/>
        <pathelement location="${build.classes}"/>
      </classpath>
      <src path="${test.src}"/>
      <compilerarg value="-XDignore.symbol.file"/>
    </javac>
  </target>

  <target name="checkos">
      <condition property="isMac">
	      <os family="mac"/>
	  </condition>
  </target>
  	
  <target name="test" depends="build-test, test-mac" description="runs unit tests">
    <echo message="running tests"/>
    <mkdir dir="${test.out}"/>
      <echo message="Testing with default Java"/>
      <junit fork="on" failureproperty="testfailed">
          <formatter type="xml" usefile="true"/>
          <formatter type="brief" usefile="false"/>
          <classpath>
              <path refid="autoivy.classpath"/>
              <pathelement location="${build.classes}"/>
              <pathelement location="${test.classes}"/>
          </classpath>
          <jvmarg value="-ea"/>
          <jvmarg value="-javaagent:${build.dir}/${jar.name}"/>
          <batchtest todir="${test.out}">
              <fileset dir="${test.classes}" includes="**/${test.name}.class" />
          </batchtest>
      </junit>

    <fail if="testfailed" message="Some test(s) failed."/>
  </target>
	
  <target name="test-mac" depends="checkos" if="isMac">
    <echo message="Testing with modified object alignment"/>
    <junit fork="on" failureproperty="testfailed">
        <formatter type="xml" usefile="true"/>
        <formatter type="brief" usefile="false"/>
        <classpath>
            <path refid="autoivy.classpath"/>
            <pathelement location="${build.classes}"/>
            <pathelement location="${test.classes}"/>
        </classpath>
        <jvmarg value="-ea"/>
        <jvmarg value="-XX:ObjectAlignmentInBytes=16"/>
        <jvmarg value="-javaagent:${build.dir}/${jar.name}"/>
        <batchtest todir="${test.out}">
            <fileset dir="${test.classes}" includes="**/${test.name}.class" />
        </batchtest>
    </junit>
  </target>
	
  <target name="javadoc" depends="build" description="build the javadoc for the project">
      <javadoc packagenames="*" sourcepath="${build.src}" classpathref="autoivy.classpath" destdir="${build.javadoc}" windowtitle="jamm api">
	      <doctitle><![CDATA[<h1>jamm javadoc</h1>]]></doctitle>
	  </javadoc>
  </target>
	
  <target name="srcjar" description="builds the source distribution jar file">
      <zip destfile="${build.dir}/${jar.src.name}">
	      <fileset dir="${basedir}">
		      <include name="**/*.java" />
			  <include name="**/*.xml" />
			  <include name="**/*.license" />
              <include name="**/*.txt" />
	      	  <exclude name="target"/>
	      </fileset>
      </zip>
  </target>
	
  <target name="sonatype" depends="jar,srcjar,javadoc" description="builds a sonatype (maven) bundle">
      <delete dir="${build.sonatype}"/>
      <mkdir dir="${build.sonatype}"/>
      <copy todir="${build.sonatype}" file="${build.dir}/${jar.name}"/>
      <copy todir="${build.sonatype}" file="${build.dir}/${jar.src.name}"/>
      <jar destfile="${build.sonatype}/${jar.javadoc.name}" basedir="${build.dir}" includes="javadoc/**"/>
      <copy tofile="${build.sonatype}/${jar.pom.name}" file="${basedir}/pom.xml"/>
    
      <exec executable="gpg">
          <arg value="-abi" />
          <arg value="${build.sonatype}/${jar.name}" />
      </exec>
      <exec executable="gpg">
          <arg value="-abi" />
          <arg value="${build.sonatype}/${jar.src.name}" />
      </exec>
      <exec executable="gpg">
          <arg value="-abi" />
          <arg value="${build.sonatype}/${jar.javadoc.name}" />
      </exec>        
      <exec executable="gpg">
          <arg value="-abi" />
          <arg value="${build.sonatype}/${jar.pom.name}" />
      </exec>
  	
      <jar destfile="${build.sonatype}/bundle.jar" basedir="${build.sonatype}" includes="jamm*">
      </jar>  	
  </target>
	
  <target name="sonatype-help" description="describes steps needed to publish artifact on sonatype">
      <echo message="To publish a jar to maven thru the sonatype oss repository do the following" />
  	  <echo message="  Create a gpg key, using, gpg --gen-key" />
  	  <echo message="  Generate an armored text key, using gpg --armor --export {YOUR_PUBLIC_KEY_ID}"/>
  	  <echo message="  Upload this key to http://keyserver.ubuntu.com" />
      <echo message="" />
  	  <echo message="Run ant sonatype to create an upload bundle in ${build.sonatype}/bundle.jar"/>
  	  <echo message="  Make sure that the pom.xml is up to date with what you have in ant's build.xml"/>
      <echo message="" />
  	  <echo message="upload this jar at https://oss.sonatype.org" />
      <echo message="" />
      <echo message="see link for details-> https://docs.sonatype.org/display/Repository/Uploading+3rd-party+Artifacts+to+The+Central+Repository" />
      <echo message="====================================================================================================================================" />
  </target>

</project>