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From "Steve Loughran" <stev...@iseran.com>
Subject Re: To fail or not to fail
Date Fri, 30 Nov 2001 20:23:26 GMT

I think adding if and unless tests to fail would suffice for much now.
Complex conditions can go into a <condition> test which immediately preceeds
the <fail>.

Note that there is already a sort of hack to implement <fail if> by virtue
of the fact that many tasks fail if the params are wrong. So if you set up
the parameters right from a condition call you can force a conditional
failure:-

<condition  name="sleeptime" value="-10" >
 <isset name="env.TOMCAT_HOME />
</condition>
<property name="sleeptime" value="0" />
<!-- fails if sleeptime is negative -->
<sleep seconds="${sleeptime}"/>


Thus adding a conditional failure to <fail> is simply a cleaning up of
existing behaviour.

-steve



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