multimodule-sbt-dependencies

Document my expectations for dependencies and transitive dependencies in SBT in the presence of scope constraints.

Known Issues

At the time of this writing SBT fails to constrain the dependencies as expected and will allow compile dependencies to test-scoped dependencies when another dependency provides a compile scoped dependency on it.

I have commented out all of the dependency problems that are correctly compile failures already and left the remaining issue ModuleXClass#compileDependencyOnZIsInvalid in place since it compiles with SBT when it should not.

Here is the output on SBT 0.13.0:

$ sbt test:compile
Loading /usr/share/sbt/bin/sbt-launch-lib.bash
[info] Set current project to multimodule-sbt-dependencies (in build file:/home/alain_odea/Documents/multimodule-sbt-dependencies/)
[success] Total time: 1 s, completed Feb 11, 2014 9:10:01 PM

I expect the following output (hypothetical, I hand-edited what you see below):

$ sbt test:compile
Loading /usr/share/sbt/bin/sbt-launch-lib.bash
[info] Set current project to multimodule-sbt-dependencies (in build file:/home/alain_odea/Documents/multimodule-sbt-dependencies/)
[info] Compiling 1 Scala source to /home/alain_odea/Documents/multimodule-sbt-dependencies/moduleX/target/scala-2.10/classes...
[error] /home/alain_odea/Documents/multimodule-sbt-dependencies/moduleX/src/main/scala/ModuleXClass.scala:4: not found: type ModuleZClass
[error]   val compileDependencyOnZIsInvalid = new ModuleZClass
[error]                                           ^
[error] one error found
[error] (moduleX/compile:compile) Compilation failed
[error] Total time: 2 s, completed Feb 11, 2014 9:13:09 PM