How to do conditional execution ofa target

[Kumar Raja]

Hello All,

I have an ant build file from which I would call another task defined in another build file. While calling another ant, I'm supplying a property say "execute" set to true. I need to have the task executed only when execute == "true".

    
               <ant dir="./scripts"      antfile="createTar.xml">		
                     <property name="execute" value="true"/>
		</ant>
    

createTar.xml

    
            <target name="PackageZip" depends="buildArchive" description="Packaging zip file">
		<zip destfile="${tarDestination}/project.zip" basedir="${buildzip}"/>
	    </target>

I need to have packageZip target to be executed only when property "execute" is true. I tried options like "if", "unless" but not successful so far. Because I do not want to have impact on other build files that are calling createTar. I see recommendations on using condition, but not sure how to do that.

[Kumar Raja]

I got this resolved using <condition><istrue> elements.

[Peter Johnson]

Kumar, posting the ant script for the solution will help others when they come across your post in the future.

[Kumar Raja]

Peter Johnson wrote:Kumar, posting the ant script for the solution will help others when they come across your post in the future.

That is true.

Below is what I did to solve my problem.

buildConfig.xml will call createTar.xml. I need to control certain steps of execution based on the parameter sent from buildConfig.xml

so in my buildConfig.xml I added a parameter called "NEEDZIP" like below

    
<ant dir="./packaging/input/scripts" antfile="createTarFile.xml">		
          <property name="ENVIRONMENT" value="${ENV}"/>	
          <property name="release" value="${release}"/>
          <property name="NEEDZIP" value="false"/>
</ant>	

Now in my createTar.xml, I did as following

    
<property name="NEEDZIP" value="true"/>

<target name="init" description="initialization">
       <condition property="ZIP">
             <istrue value="${NEEDZIP}"/>
       </condition>
</target>
.......
......
......
<target name="PackageZip" depends="buildArchive" description="Packaging zip file" if="ZIP">
		<zip destfile="${tarDestination}/Project.zip" basedir="${buildzip}"/>	
</target>

I'm not sure, if this is a good approach, but could manage it for my requirement.. If anybody having a better approach, please share it here.

[Martijn Verburg]

Thanks for sharing!