Which project is this feature idea for?

Turborepo

Describe the feature you'd like to request

I would like to run some script after all packages have executed a given task.

For example, running coverage task in each package, and then running an additional task at the root that merges/aggregates all of that coverage. I can think of similar postXxx tasks for documentation, copying/moving/bundling files, etc.

Keywords: "all packages", "star dependsOn"

Describe the solution you'd like

Due to the nature of “all packages,” I would like a special dependsOn value ("*") that only root tasks can reference.

Example:

"//#coverage": {
  "dependsOn": ["*coverage"]
}

Note: I originally thought just *, but realized *<task_name> may make more sense.

Describe alternatives you've considered

Alternatives I considered

1. Running a new turbo instance. For example, having the root package.json’s coverage:root run turbo run coverage and have a postcoverage:root execute the aggregation. Not ideal because we would have two turbo runs which limits parallelization I think.

2. Creating an umbrella @scope/all-packages package that declares every other package as a dependency. I could then use this package to execute any aggregation logic. Not ideal at first glance because I now have two places to maintain workspace configuration/workspace list, which can lead to out-of-sync issues.

   This has similarity to explicitly declaring dependencies in dependsOn for the root task, but I think Turbo prefers we use package.json dependencies to model package dependencies, and dependsOn to manage task dependencies.