Introduction to Apache Ant

1. Apache Ant Hussain Fakhruddin [email_address]

3. What is Ant “ Apache Ant is a Java-based build tool. In theory, it is kind of like Make, but without Make's wrinkles” -Apache Ant Website

7. Ant directory structure

12. build.xml ..Cont A build.xml file contains the following: Root Tag : <project> Child Tag: <target> (at least one) Sub Child Tag: <task>

13. Sample build.xml <project name=&quot;example&quot; default=&quot;hello&quot;> <target name=&quot;hello&quot;> <echo message=&quot;My First Ant&quot; /> </target> </project> Project tag(only one ) Task tag Target Tag (at least one)

14. Output

20. Sample build.xml with properties <project name=&quot;MyProject&quot; default=&quot;dist&quot; basedir=&quot;.&quot;> <description> simple example build file </description> <!-- set global properties for this build --> <property name=&quot;src&quot; location=&quot;src&quot;/> <property name=&quot;build&quot; location=&quot;build&quot;/> <property name=&quot;dist&quot; location=&quot;dist&quot;/> <target name=&quot;init&quot;> <!-- Create the time stamp --> <tstamp/> <!-- Create the build directory structure used by compile --> <mkdir dir=&quot;${build}&quot;/> </target> <target name=&quot;compile&quot; depends=&quot;init&quot; description=&quot;compile the source &quot; > <!-- Compile the java code from ${src} into ${build} --> <javac srcdir=&quot;${src}&quot; destdir=&quot;${build}&quot;/> </target> <target name=&quot;dist&quot; depends=&quot;compile&quot; description=&quot;generate the distribution&quot; > <!-- Create the distribution directory --> <mkdir dir=&quot;${dist}/lib&quot;/> <!-- Put everything in ${build} into the MyProject-${DSTAMP}.jar file --> <jar jarfile=&quot;${dist}/lib/MyProject-${DSTAMP}.jar&quot; basedir=&quot;${build}&quot;/> </target> <target name=&quot;clean&quot; description=&quot;clean up&quot; > <!-- Delete the ${build} and ${dist} directory trees --> <delete dir=&quot;${build}&quot;/> <delete dir=&quot;${dist}&quot;/> </target> </project>

21. Hello World with Ant Lets compile , pack and run a simple Hello World program in Java. Step 1: Write your Java source code Step 2: Write a build.xml file Step 3: Run Ant with the build.xml

22. Step 1: Write a simple Hello World in Java public class HelloWorld{ public static void main(String []args) { System.out.println(“Hi, I am from Ant”); } }

24. build.xml ..cont. Write a project with tasks to compile, package clean and run <project name=&quot;Hello World&quot; default=&quot;compile&quot;> <target name=&quot;compile&quot;> <mkdir dir=&quot;dist&quot; /> <javac srcdir=&quot;.&quot; destdir=&quot;dist&quot; /> </target> </project> Make a directory called “dist” Provide source and destination directories

25. build.xml ..cont <project name=&quot;Hello World&quot; default=&quot;compile&quot;> <target name=&quot;jar&quot;> <mkdir dir=&quot;dist/jar&quot;/> <jar destfile=&quot;dist/jar/HelloWorld.jar&quot; basedir=&quot;dist&quot;> <manifest> <attribute name=&quot;Main-Class&quot; value=&quot;HelloWorld&quot;/> </manifest> </jar> </target> <target name=&quot;compile&quot;> <mkdir dir=&quot;dist&quot; /> <javac srcdir=&quot;.&quot; destdir=&quot;dist&quot; /> </target> </project> Package Class Name

26. build.xml ..cont <project name=&quot;Hello World&quot; default=&quot;compile&quot;> <target name=&quot;run&quot;> <java jar=&quot;dist/jar/HelloWorld.jar&quot; fork=&quot;true&quot;/> </target> <target name=&quot;clean&quot;> <delete dir=&quot;dist&quot;/> </target> <target name=&quot;jar&quot;> <mkdir dir=&quot;dist/jar&quot;/> <jar destfile=&quot;dist/jar/HelloWorld.jar&quot; basedir=&quot;dist&quot;> <manifest> <attribute name=&quot;Main-Class&quot; value=&quot;HelloWorld&quot;/> </manifest> </jar> </target> <target name=&quot;compile&quot;> <mkdir dir=&quot;dist&quot; /> <javac srcdir=&quot;.&quot; destdir=&quot;dist&quot; /> </target> </project> delete the directory created by <mkdir> in the beginning Execute this jar file

27. Run the Ant Place your files in the classpath and execute: ant compile ant jar ant run or simply, ant compile jar run

28. Output

29. Ant Resources Homepage: http://ant.apache.org User Manual: http://jakarta.apache.org/ant/manual/index.html Wiki: http://wiki.apache.org/ant/FrontPage FAQ: http://ant.apache.org/faq.html Books: http://sourceforge.net/projects/antbook Contribution: http://www.apache.org/foundation/contributing.html

30. Queries?

31. Thanks for your time About the Author: Hussain Fakhruddin [email_address]