Add a command-line argument for setting the tooldir, so that the default
can be overridden. Add this directory to the toolpath automatically.
Create the directory if it does not already exist.
Put the default in the argument parser instead of the class, so that it
is more obvious.
Update a few tests that expect the utility name to be provided without
any path (e.g. 'futility'), so they can accept a path, e.g.
/path/to/futility
Update the documentation and add a few tests.
Improve the help for --toolpath while we are here.
Signed-off-by: Simon Glass <sjg@chromium.org>
We want to be able to change this directory. Use a class member to hold
the value, since changing a constant is not good.
Signed-off-by: Simon Glass <sjg@chromium.org>