Ant: How to execute / skip tasks by property in build.xml ?

Question

Hi,
I want to create a build.xml to execute / skip tasks dynamically by property in build.xml.
eg: I can define one property "needObfuscate" in either "true" or "false". I will contruct 2 tasks for obfuscate and non-obfuscate to fullfill the 2 cases. Only one of them WILL be executed depend on the flag "needObfuscate".
** I know Antenna's task "wtkpackage" has an arguement "obfuscate" to set. It's an example, what I want to know is how to execute / skip the tasks.
Task "condition" is just used to set the property in runtime.
<condition property="result" value="User choose 001.">
<equals arg1="001" arg2="${select}"/>
</condition>
There is other tasks can fullfill what I expect ?
Please guide me how to make it.
Thanks.

Answer 1

Hi,
I've done one build.xml like below:
<?xml version="1.0"?>
<project name="PropertyPromptExample" default="main" basedir=".">
<target name="windowsTask">
<echo>windowsTask</echo>
</target>
<target name="linuxTask">
<echo>linuxTask</echo>
</target>
<target name="main">
<input message="Please enter platform(0 Windows, 1 Linux):" addproperty="select"/>
<condition property="platform" value="windowsTask">
<equals arg1="0" arg2="${select}"/>
</condition>
<condition property="platform" value="linuxTask">
<equals arg1="1" arg2="${select}"/>
</condition>
<antcall target="${platform}"/>
</target>
</project>
:)