but https://github.com/pantsbuild/pants/issues/6598 is relevant. just marking a Node !cacheable isn't quite sufficient currently, because any dependents of that Node will still be cached, so that would look like a an uncacheable "hole" in the middle of the graph
dirtying to the root would be a strategy to basically say "this node is not cacheable, so everything above it needs to be considered to be dirty continuously"
11/18/2019, 8:35 PM
right, I just wanted to get a rough idea of where in the code was the right place to look