build.xml

<project default="package">
    <property file="local.properties"/>
    <property file="project.properties"/>

    <!-- Package properties -->
    <property name="package.name" value="android-async-http" />
    <property name="package.packagename" value="com.loopj.android.http" />
    
    <!-- Get git commit -->
    <available file=".git" type="dir" property="git.present"/>

    <target name="git-details">
        <exec executable="git" outputproperty="git.status">
            <arg value="status" />
        </exec>
        <echo message="${git.status}"/>
        
        <exec executable="git" outputproperty="package.versionname">
          <arg value="describe"/>
          <arg value="--tags"/>
          <arg value="--dirty"/>
          <arg value="--always"/>
        </exec>
        <echo message="${package.versionname}" />
    </target>

    <!-- Standard jar stuff -->
    <property environment="env"/>
    <condition property="android.base" value="${sdk.dir}" else="${env.ANDROID_HOME}">
      <isset property="sdk.dir" />
    </condition>
    <fail message="Please set either the sdk.dir property or the ANDROID_HOME environment variable to point to your Android SDK installation.">
      <condition>
        <not>
          <available file="${android.base}" type="dir"/>
        </not>
      </condition>
    </fail>

    <property name="lib.dir" value="${android.base}/platforms/${target}" />
    <property name="build.dir" value="./build"/>
    <property name="classes.dir"  value="${build.dir}/classes"/>
    <buildnumber file="build.num" />

    <!-- Set up classpath -->
    <path id="classpath">
        <fileset dir="${lib.dir}" includes="**/*.jar" />
    </path>

    <!-- Build javadoc -->
    <target name="doc">
        <javadoc 
            classpathref="classpath"
            sourcepath="gen:src"
            destdir="doc"
            packagenames="${package.packagename}"
            linkoffline="http://d.android.com/reference ${android.base}/docs/reference" 
            additionalparam="-author  -version"
            />
    </target>

    <!-- Compile java files into classes -->
    <target name="compile">
        <mkdir dir="${build.dir}" />
        <mkdir dir="${classes.dir}" />

        <javac
            includeantruntime="false"
            srcdir="src"
            destdir="${classes.dir}"
            classpathref="classpath"
            debug="true"
            debuglevel="lines,source" />
    </target>

    <!-- Package a jar from compiled class files -->
    <target name="jar" depends="git-details,compile">
        <manifest file="MANIFEST.MF">
            <attribute name="Built-By" value="${user.name}" />
            <attribute name="Implementation-Version" value="${package.versionname}"/> 
        </manifest>

        <jar destfile="${package.name}-${package.versionname}.jar" basedir="build/classes" includes="com/loopj/android/http/**/*.class" manifest="MANIFEST.MF" />
    </target>

    <!-- Clean out the build files -->
    <target name="clean">
        <delete dir="build" />
        <delete dir="doc" />
        <delete>
            <fileset dir="." includes="*.jar"/>
            <fileset file="MANIFEST.MF"/>
        </delete>
    </target>

    <!-- Compile and package a jar -->
    <target name="package" depends="compile,jar" />
</project>