Distribute and upload dependency DARs?

App Development
1

If I have this:

  • two Daml projects, app and lib
  • the app project depends on the lib project
  • the lib-1.0.0.dar contains the org.lib.v1 as the main package
  • the app-1.0.0.dar contains the org.app.v1 as the main package

My understanding is that the app-1.0.0.dar also contains the org.lib.v1 package.

My questions are:

  1. Must my app’s users upload both DARs to their node? Or is uploading app-1.0.0.dar sufficient?
  2. If not, should I distribute both DARs to my app’s users? Why?
2

The DARs produced by the Daml SDK are “fat” in the sense that they are transitively closed. So your understanding is correct.

By default, uploading a package to a node vets all packages included so to your question 1, uploading app-1.0.0.dar is sufficient.

The main reason to distribute lib-1.0.0.dar independently is to use it in another app. Ie the distribution of lib-1.0.0.dar would be for developers of app2 rather than those deploying app or app2.