Is there a builtin alternative to a plugin that chases parents?

[Benson Margulies <bi...@gmail.com>]

The other day, I cooked up a plugin as follows:

As input, it takes a groupid, an artifactid, and a property name.

It works its way up the chain of parents, and when it finds a match,
it returns the basedir. Obviously, if one of the parents is coming
from the repo instead of a relative path, it's not going to return
something useful.

A remark on the dev list suggests that I've duplicated built-in
functionality, but I can't find it by a bit of googling. Have I missed
some way to evaluate expressions with respect to parents?

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