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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 4884] - Dependant targets fire unnecessarily
Date Thu, 15 Nov 2001 22:27:06 GMT
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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=4884

Dependant targets fire unnecessarily





------- Additional Comments From tgochenour@peregrine.com  2001-11-15 14:27 -------
Targets invoked by antcall cannot set properties that are visible to the 
calling target.  One must use the depends="" invocation to implement the 
scenario you mention where a dependent target sets a property for the calling 
target to use.

I have the following scenario which I use as a work-around:

<target name="build-default" unless="skip.build.x" depends="special-case1, 
special-case2">
  <echo message="build-default"/>
</target>

<target name="special-case1" if="build.special-case1" unless="skip.build.x">
  <property name="skip.build.x" value="true"/>
  <echo message="build-special-case1"/>
</target>

<target name="special-case2" if="build.special-case2" unless="skip.build.x">
  <property name="skip.build.x" value="true"/>
  <echo message="build-special-case2"/>
</target>

Each special case needs an explicit unless="skip.build.x" to prevent it from 
firing.  The problem is I can't test for a different condition or nest a 
similar strategy within one of these special cases.  If default tested the 
unless before firing dependents then I could omit the unless clauses in each of 
my special case targets.

As for lobbying for a change in Ant2...perhaps this is what I'm doing now.

Todd

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