Sorry for the repeat, but this is baffling and looks either buggy or
ill-designed, and we really need to understand how it works... could
someone shed some light?
-----Original Message-----
From: Brown, Carlton
Sent: Monday, August 28, 2006 6:33 PM
To: user@ant.apache.org
Subject: <apply> outputproperty not capturing output
Hi all,
Basic question: What is the real significance of the "outputproperty"
attribute of the <apply> task? Is this just some kind of race condition
where Ant applies the output of whichever command invocation happens to
run first?
Observation: If I <apply> a command to more than one file, and the
command produces output for only certain files, I don't see any of the
output in the property defined by "outputproperty". I can however see
it if I limit the <apply> fileset to only one file, (effectively making
it an <exec> and not what I'm looking for).
Situation: I'm running an <apply> task (code below) that processes
about 48 idl files. Since this is a crappy idl compiler that happily
returns a zero exit status when it fails, I'm forced to parse the output
to detect failures. Since I use <apply> to apply the idlj program to
all 48 IDL files, I want to parse the output of all 48 command
invocations for a certain failure string. So I use the "contains"
condition. However, I notice that the output doesn't get captured in
the outputproperty if I apply to more than one file.
Some code:
<target name="generate-netxidl" depends="init">
<apply executable="${idl.compiler.path}"
failonerror="true" failifexecutionfails="true"
outputproperty="netx.idlj.output"
errorproperty="netx.idlj.error">
<arg value="-f"/>
<arg value="all"/>
<arg value="-pkgPrefix"/>
<arg value="idl"/>
<arg value="${netxidl.package.prefix}"/>
<arg value="-td"/>
<arg value="${generation.output.dir}"/>
<arg value="-i"/>
<arg value="${idl.src.path}/netx"/>
<arg value="-noWarn"/>
<srcfile/>
<!-- If I set the fileset below to a very specific name
instead of a wildcard,
the output gets assigned to netx.idlj.output and this
fails as expected. Otherwise, it doesn't -->
<fileset dir="${idl.src.path}/netx" includes="*.idl"/>
</apply>
<fail message="netx idl generation failed with this
error:${line.separator}${netx.idlj.output}">
<condition>
<and>
<contains
string="${netx.idlj.output}" substring=" (line "/>
</and>
</condition>
</fail>
</target>
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