build.xml - Conditional concatenation in Ant -

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i have task like:

<target name="sometarget">     <concat destfile="somefile">         <string>somestring</string>          <string>someotherstring</string>     </concat> </target>  <target name="someothertarget">     <antcall target="sometarget">         <param name="myparam" value="myvalue"></param>     </antcall>      <antcall target="sometarget">     </antcall> </target>

how can concatenate someotherstring if myparam supplied when calling sometarget target?

without ant extensions, use conditional ant execution:

<project default="someothertarget">     <target name="sometarget" depends="-somestring,-someotherstring"/>      <target name="-somestring" unless="myparam">         <concat destfile="somefile">             <string>somestring</string>         </concat>     </target>      <target name="-someotherstring" if="myparam">         <concat destfile="someotherfile">             <string>somestring</string>             <string>someotherstring</string>         </concat>     </target>      <target name="someothertarget">         <antcall target="sometarget">             <param name="myparam" value="myvalue"></param>         </antcall>         <antcall target="sometarget"/>     </target> </project>

if don't mind adding ant extensions project, check out ant-contrib's if task.


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