Access to the workspace Tree from processProjectGraph

[khalilou88]

Hello,

Can we access to the Tree from processProjectGraph ?
I can use appRootPath from '@nrwl/tao/src/utils/app-root' to read the file I want but this is not working in e2e tests because appRootPath points to the plugin workspace and not the tmp/nx-e2e/proj folder.

I am looking for a solution that works both in e2e tests and in the target workspace.

Thank you