Is it possible to declare an artifact as being built by a custom task, but it's files are not its outputs? Real example: I have a task that runs

npm install

and I need to declare

node_modules/x/**/*.css

as artifact. To avoid massive performance issues with

npm install

declaring

node_modules

as outputs, I implemented something smarter. The only way I can make it work is by creating a task that depends on

npmInstall

task and copies

node_modules/x/**/*.css

to an intermediate dir. Is it possible to avoid this copy?