CODEWITHSUNDEEP
scalasbt
Wonay
Wonay

Reputation: 1250

How to override libraryDependencies in a sbt plugin?

How would one override the libraryDependencies ? I tried: 

  Keys.libraryDependencies in Compile := {
    val libraryDependencies = (Keys.libraryDependencies in Compile).value
    val allLibraries = UpdateDependencies(libraryDependencies)
    allLibraries
  }

So that seem to work, when I add print statement, the allLibraries is correct.

However, in the next steps, it doesn't seem to have the right values:

  Keys.update in Compile := Def.taskDyn {
    val u = (Keys.update in Compile).value

    Def.task {
      val allModules= u.configurations.flatMap(_.allModules)
      log.info(s"Read ${allModules.size} modules:")
      u
    }
  }.value

The print statement only have a few modules instead of all the one I would have added in the previous step.

Anyone have a solution ? Thanks !

Upvotes: 2

Views: 164

Answers (1)

Wonay
Wonay

Reputation: 1250

So I understand where my problem was. I was not understanding correctly how settings and tasks were working together.

settings are only evaluated once when sbt start.

and tasks are only evaluated once when sbt start a task / command which will require it.

So you cannot read and then rewrite settings like that.

It was so convoluted, I even wrote a whole article about it

Upvotes: 1

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