[Case Study] Angular CLI

What package is covered by this investigations?

All packages contained in the angular/angular-cli repository, most notably @angular/cli.

Describe the goal of the investigation

As an angular developer I want my builds to work with berry (or PnP in general). Not having this would mean I can't use yarn and I don't want to even think about the consequences to that as I use yarn workspaces in literally all of my angular repos.

Angular has a work-in-progress bazel buildchain. Bazel uses yarn internally, but getting that up and running with berry is best left to another ticket.

Investigation report

Test repo at bgotink/berry-angular-poc. Current status: not working at all

Encountered issues:

• A custom module resolution in @angular-devkit/core/node/resolve.
  I've hacked together a quick resolution function using pnpapi here, that seems to work for now though I'm sure I'll run into more issues later.
• Next up is webpack-subresource-integrity which is at a version that doesn't list html-webpack-plugin as peer dependency, leading to an error.
  Adding a resolution to the first version that does include the missing peer dependency leads to #265.
  Fixed by #279