<Arg> element doesn't understand variables, e.g. ${ipmdir}

[evshvarov]

Tried to transfer the path where I installed data into the Init method to deal with installed files, but it stopped working.
Here is my setup:

<FileCopy Name="data/" Target="${ipmdir}data/"/>
       <Invokes>
        <Invoke Class="app.setup" Method="Init">
        <Arg>${ipmdir}</Arg>
        </Invoke>
      </Invokes>

it comes as "{ipmdir}" string to the Init() method.
It used to work previously.

[AshokThangavel]

I have tested on my environment to try and reproduce the issue, but it is working correctly for me. The variable ${ipmdir} is resolving to the full path as expected.

My Working Configuration:

<Default Name="ipmtest" Value="TESTING MY STRING"/>
<Default Name="ipmdir" Value="/usr/irissys/mgr/user/mts"/>

<FileCopy Name="data/" Target="${ipmdir}data/"/>
<Invokes>
    <Invoke Class="Demo.First" Method="Populate1">
        <Arg>${ipmdir}</Arg>
    </Invoke>
</Invokes>

Could you share your full module.xml or the specific logs from the -v (verbose) load? This will help to see exactly where the substitution is breaking.

Thank you!

[evshvarov]

Yes, default works in Arg.
But ${ipmdir} is an embedded variable, like ${cspdir} and ${libdir} and it has its value - you cannot use it in Arg and this is the issue.

[AshokThangavel]

Thank you, @evshvarov, for clarifying the issue. I was able to reproduce it. The ${ipmdir} variable needs to be added to the %EvaluateSystemExpression method so it is translated by default.

[isc-dchui]

The ${ipmdir} system expression is new as of 0.10.4, so I don't think it was ever working in <Arg>'s. I do agree that we should support it there, but it will be a little more complicated than adding it to %EvaluateSystemExpression as it is a module-specific path.

[AshokThangavel]

Yes @isc-dchui I agree. It's module-specific path. It is not a full system expression like ${installDir}, so need to an alternative approach. Maybe fix directly in %Evaluate method