如何依赖Github的多模块SBT项目的子项目

Question

I can add a dependency on the commons root like this:

lazy val commons = RootProject(uri("ssh://git@github.com:foo/commons.git"))
lazy val thisProject = project.in(file(".")).dependsOn(commons)

But what if I want to depend on a specific commons sub-project (the commons repository contains a multi-module SBT project). Eg (in pseudo-code):

lazy val commonDbStuff = RootProject(uri("ssh://git@github.com:foo/commons.git")).sub("commons-db") // pseudo-code
lazy val thisProject = project.in(file(".")).dependsOn(commonsDbStuff)

Is it possible?

Answer 1

lazy val commonDbStuff = 
  ProjectRef(uri("ssh://git@github.com/foo/commons.git"), "commons-db")