Status: New
Owner: ----
Labels: Type-Enhancement Priority-Medium

New issue 542 by c.martin.taylor: Ability to reference already set variables in argument files and maybe command line
http://code.google.com/p/robotframework/issues/detail?id=542

I would like to be able to reference Robot Framework variables that have
already been given values in an argument file, or maybe even on the command
line.  For example, I'd like to write a couple of argument files like this:

SetProject.txt
  --variable Project:MyCodeName

ArgFile.txt
#
# Set the Project variable
#
--argumentfile SetProject.txt
#
# Set the outputdir based on Project
#
--outputdir ${Project}/results
#
# Select suite files to run
#
${Project}*.html

If I used these two argument files in a pybot command like:

  pybot -A ArgFile.txt

then I'd like the ${Project} variable references in ArgFile.txt to be
substituted at run-time with the value assigned to that variable.  If the
Project variable was not assigned, the an error would be raised.

I'd be willing to work on this enhancement if someone could guide me as to
where the changes would need to be made and where to find the Robot
Framework methods for variable substitution.

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