Hi,

I'm interested in finding out how an external program, run through the <exec 
program=""> NAnt command can produce <message> elements in the log file with a 
level other than "Warning".

My build file contains:
            <exec program="${BuildHelper.exe}">
                        <arg 
value="-assembly:D:\data\Build\BuildHelperLib.dll"/>
                        <arg value="-type:Acturis.HelperLib.XmlFileUtil"/>
                        <arg value="-method:AttributeTransformXmlFile"/>
                        <arg 
value="-param:${generateConfig.transform.XmlFile}"/>
                        <arg value="-param:${generateConfig.source.XmlFile}"/>
                        <arg 
value="-param:${generateConfig.outputConfigXmlFile}"/>
                        <arg value="-param:${generateConfig.transform.Key}"/>
                        <arg value="-param:${generateConfig.env}"/>
            </exec>

And the output generated is:
              <task name="exec">
                <message level="Info"><![CDATA[Invoking 
D:\data\Build\BuildHelperLib.dll : SNIP...]]></message>
                <message level="Warning"><![CDATA[Unhandled Exception: 
System.Reflection.TargetInvocationException: Exception has been thrown by the 
target of an invocation. ---> System.NullReferenceException: Object reference 
not set to an instance of an object.]]></message>
                <message level="Warning"><![CDATA[at 
Acturis.HelperLib.XmlAttributeTransform.ApplyAttributeValueOverride(SNIP)]]></message>
                <message level="Warning"><![CDATA[at 
Acturis.HelperLib.XmlAttributeTransform.TransformXml(SNIP)]]></message>
                <message level="Warning">Lots more warnings...</message>
                <duration>13296.7899</duration>
              </task>

However, I wish for the build to break, and the Warnings above should be thrown 
as Errors.

The BuildHelper.exe program was written for us by a contractor who has since 
left, but the code is fairly simple C#.NET code.  The NullReferenceException 
has been thrown by the .NET framework, but I can't see how it has been 
determined to be a Warning rather than an Error.

Alternatively, if I can set the <exec> to "failOnWarning" that would be a less 
satisfactory, but nonetheless workable solution.

Any ideas would be much appreciated.

Kind Regards,

Robin McKenzie
acturis ltd | connected thinking


________________________________
Winner of Service Provider of the Year 2007 at the British Insurance Awards
Winner of Service Provider of the Year 2006 at the Insurance Times Awards

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