Changing property value in Ant

Question

I don't want to use propertyregex in the AntContrib task, but I need to modify a property. I am using the cabarc command (I can't get the <cab> task to work), and I need to strip out the drive name.

${basedir} = "D:\some\directory\blah\blah"
${cwd} = some\directory\blah\blah"

I need this in order to strip out the path in cabarc (but still using directories). I've ended up doing the following:

<!-- Create a property set with just basedir -->
<!-- Needed for loadproperties to work -->

<propertyset id="cwd">
    <propertyref name="basedir"/>
</propertyset>

<loadproperties>
     <propertyset refid="cwd"/>
     <filterchain>
         <tokenfilter>
              <replaceregex pattern=".:\\"
                   replace="cwd="/>
         </tokenfilter>
     </filterchain>
</loadproperties>

That works, but it's a little complex and will be hard to maintain.

Is there an easier way to do this?

Answer 1

get into the groove ;-)

<groovy>
properties.'cwd' = properties.'basedir'[3..-1]
</groovy>

or with Ant Plugin Flaka :

<project xmlns:fl="antlib:it.haefelinger.flaka" name="World">
  <!-- simple echo -->
  <fl:echo>#{replace('${basedir}', '$1' , '.:\\\\(.+)' )}</fl:echo>
  <!-- set property -->
  <fl:let>cwd := replace('${basedir}', '$1' , '.:\\\\(.+)' )</fl:let>
</project>

Disclosure = i'm participating as committer in the Flaka project