Goals

Support an option that, if enabled, makes Turbo fail if a task has missing inputs.

Non-goals

No response

Background

I use Turbo in a large repo with lots of codegen. The codegen files are frequently in other workspaces and specified as relative paths, which go out of date as files move around. This leads to incorrect Turbo files that we discover much later after our builds are broken due to incorrect caching.

Conceptually I think it would be nice to support this. I get that Turbo is generous about missing things because of inheritance, but it also seems like a missing input file or a glob that matches zero files is very likely a bug on the developer's part.

Proposal

Expose this as an option in turbo.json