Sebastian Schuberth <sschuberth@xxxxxxxxx> writes:
> We have no such assurance. That's why you correctly call it a
> heuristics after all
ImageMagick "compare" takes "--version" and says something like
this to its standard output:
$ compare --version
Version: ImageMagick 6.6.0-4 2012-05-02 Q16
http://www.imagemagick.org
Copyright: Copyright (C) 1999-2010 ImageMagick Studio LLC
Does Araxis compare take "--version" and behave in a way that is
cheaply controllable? If it opens a GUI window and pops up a dialog
that says "Option not understood", then it is not "controllable",
but if it quickly dies with "No such option" sent to the standard
error output, or sending its version string to the standard output,
then we could use something like:
case "$(compare --version 2>/dev/null)" in
"Araxis compare version"*)
echo compare ;;
*)
echo "$1" ;;
esac
instead, and that would be more robust than the path based
heuristics.
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