Hello,
I could use some advice about how to handle this situation:
I have a property, MyProperty, that may or may not be set. I want a task to
execute if the property is set, e.g.
<echo messsage="Hello ${MyProperty}!" if="${property::exists('MyProperty')" />
If MyProperty is not set, this task fails because NAnt appears to evaluate the
message portion regardless of the result of the IF evaluation. I could rewrite
like this:
<if test="${property::exists('MyProperty')}">
<echo message="Hello ${MyProperty}!" />
</if>
However, I run into the same issue with filterchains:
<!-- FAILS if MyProperty is not set, because NAnt evaluates the tokens
regardless of the IF result -->
<copy failonerror="true" verbose="true" todir="C:\Temp">
<fileset refid="Deploy-FileSet" />
<filterchain>
<replacetokens begintoken="[" endtoken="]" ignorecase="true"
if="${property::exists('MyProperty')}">
<token key="ABC" value="${MyProperty}" />
</replacetokens>
</filterchain>
</copy>
I'd rather not enclose the whole definition of the copy in an IF, with a nearly
identical "else" version for the case when MyProperty is not set.
How have you handled this situation?
Thanks,
Durand
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