Cross compiling for dependsOn

@eed3si9n rewrote this case.

steps

$ cat project/build.properties 
sbt.version=0.13.5

$ cat build.sbt               
lazy val rootProj = (project in file(".")).
  aggregate(fooProj, barProj).
  settings(
    scalaVersion := "2.11.1",
    crossScalaVersions := Seq("2.10.4", "2.11.1")
  )

lazy val fooProj = (project in file("foo")).
  dependsOn(barProj).
  settings(
    scalaVersion := "2.10.4"
  )

lazy val barProj = (project in file("bar")).
  settings(
    scalaVersion := "2.11.1",
    crossScalaVersions := Seq("2.10.4", "2.11.1")
  )

problem

$ sbt compile
[info] Loading global plugins from /Users/eugene/dotfiles/sbt/0.13/plugins
[info] Loading project definition from /Users/eugene/work/quick-test/sbt-1448/project
[info] Set current project to rootProj (in build file:/Users/eugene/work/quick-test/sbt-1448/)
[info] Updating {file:/Users/eugene/work/quick-test/sbt-1448/}fooProj...
[info] Resolving barproj#barproj_2.10;0.1-SNAPSHOT ...
[warn]  module not found: barproj#barproj_2.10;0.1-SNAPSHOT
[warn] ==== local: tried
[warn]   /Users/eugene/.ivy2/local/barproj/barproj_2.10/0.1-SNAPSHOT/ivys/ivy.xml
[warn] ==== public: tried
[warn]   http://repo1.maven.org/maven2/barproj/barproj_2.10/0.1-SNAPSHOT/barproj_2.10-0.1-SNAPSHOT.pom
[info] Resolving org.fusesource.jansi#jansi;1.4 ...
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::
[warn]  ::          UNRESOLVED DEPENDENCIES         ::
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::
[warn]  :: barproj#barproj_2.10;0.1-SNAPSHOT: not found
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::
sbt.ResolveException: unresolved dependency: barproj#barproj_2.10;0.1-SNAPSHOT: not found
    at sbt.IvyActions$.sbt$IvyActions$$resolve(IvyActions.scala:217)
    at sbt.IvyActions$$anonfun$update$1.apply(IvyActions.scala:126)
    at sbt.IvyActions$$anonfun$update$1.apply(IvyActions.scala:125)
    at sbt.IvySbt$Module$$anonfun$withModule$1.apply(Ivy.scala:115)
    at sbt.IvySbt$Module$$anonfun$withModule$1.apply(Ivy.scala:115)
    at sbt.IvySbt$$anonfun$withIvy$1.apply(Ivy.scala:103)
    at sbt.IvySbt.sbt$IvySbt$$action$1(Ivy.scala:48)
    at sbt.IvySbt$$anon$3.call(Ivy.scala:57)

expectation

1. fooProj is either excluded from aggregation
2. or scalaVersion is switched to “2.10.4” when it runs compile task under fooProj.

original report

When using

lazy val a = project
lazy val b = project dependsOn a

…where project a is Scala version x and project b is Scala version y

…then the class path of a in the context of b should be for Scala version y i.e. b’s Scala version.

[fchaillou]

Actually, this still doesn’t work. I tried with sbt 1.1.6 and sbt still tries to fetch the barProj with ivy instead of using the local project ref as it should

[joan38]

Is there any fix scheduled for that?