Blurred loading of management dependencies on SBT project

Question

I have an SBT Scala multiproject with the following structure:

multiprojectRoot        
    project/SharedProjectBuildCode.scala
    project1
        src/sourceFiles
        project1-build.sbt
    project2
        src/sourceFiles
        project2-build.sbt
    projectN
        src/sourceFiles
        projectN-build.sbt

• multiprojectRoot / project / SharedProjectBuildCode.scala: contains multi-project definitions that use dependOn to create dependencies on local projects. For example:

  lazy val project2 = Project(
      ...
  ).dependsOn(project1)
  

• multiprojectRoot / project2 / project2-build.sbt: contains settings and dependencies for this project. For example:

  name := "project2"
  
  libraryDependencies ++= Seq(          
            ...
            "my.company" % "project1" % "1.0"
  )
  

The first dependency on project1 is declared with dependOn in the SharedProjectBuildCode.scala file, and the second is created in the stand-alone build definition file build2 build.sbt.

Thus, the definition of project2 contains:

• ambiguous dependence on project1 or
• double dependency on project1

We want to keep this project structure because it is the best for our current workflow:

• .sbt .
• .scala dependOn , , publishLocal.

. ?

Answer 1

, , , SBT.

SBT *.sbt , *.scala root/project. , .sbt, , /.scala :

. sbt

, :

multiprojectRoot        
    project/SharedProjectBuildCode.scala
    project1
        src/sourceFiles
        project/DeploymentOnlyCode.scala
        project1-build.sbt
    project2
        src/sourceFiles
        project/DeploymentOnlyCode.scala
        project2-build.sbt
    projectN
        src/sourceFiles
        project/DeploymentOnlyCode.scala
        projectN-build.sbt

, SBT :

• : SBT multiprojectRoot. (, dependOn Local).
• : SBT , multiprojectRoot/project2. , ( , ).

3 , :

• multiprojectRoot/project/SharedProjectBuildCode.scala: , .
• multiprojectRoot/project1/project1-build.sbt: , , , . , .
• multiprojectRoot/project1/project/DeploymentOnlyCode.scala: , . , .

, , , , , .

Answer 2

, SharedProjectBuildCode.scala

lazy val root = Project(id = "Main-Project",
    base = file(".")) aggregate(project1, project2,..)

lazy val project2 = Project(id = "project2",
    base = file("project1")).dependsOn(project1)

...

build.sbt.