我有一个使用两个版本的Scala的多项目。该Build.scala
看起来是这样的:sbt在多项目构建中使用不同的Scala版本
import sbt._
import Keys._
object Build extends sbt.Build {
lazy val root: Project = Project(
id = "scalacolliderugens",
base = file("."),
aggregate = Seq(gen, core)
)
lazy val gen = Project(...)
lazy val core = Project(...)
val ugenGenerator = TaskKey[Seq[File]]("ugen-generate", "Generate UGen class files")
def runUGenGenerator(source: File, cp: Seq[File]): Seq[File] = Nil // TODO
}
在那里我有使用Scala的2.9.2纯源发电项目:
lazy val gen = Project(
id = "scalacolliderugens-gen",
base = file("gen"),
settings = Project.defaultSettings ++ Seq(
scalaVersion := "2.9.2", // !!!
libraryDependencies ++= Seq(
"org.scala-refactoring" % "org.scala-refactoring_2.9.1" % "0.4.1"
),
libraryDependencies <+= scalaVersion { sv =>
"org.scala-lang" % "scala-compiler" % sv
}
)
)
并结合生成的来源,对编译斯卡拉2.10实际的项目:
lazy val core = Project(
id = "scalacolliderugens-core",
base = file("core"),
settings = Project.defaultSettings ++ Seq(
scalaVersion := "2.10.0", // !!!
sourceGenerators in Compile <+= (ugenGenerator in Compile),
ugenGenerator in Compile <<=
(scalaSource in Compile, dependencyClasspath in Runtime in gen) map {
(src, cp) => runUGenGenerator(src, cp.files)
}
)
).dependsOn(gen)
当我编译,我得到SBT警告:
[warn] Binary version (2.9.2) for dependency org.scala-lang#scala-library;2.9.2
[warn] in de.sciss#scalacolliderugens_2.10;1.0.1 differs from Scala binary \
version in project (2.10).
[info] Resolving org.scala-lang#scala-library;2.9.2 ...
[info] Done updating.
[warn] Binary version (2.9.2) for dependency org.scala-lang#scala-library;2.9.2
[warn] in de.sciss#scalacolliderugens-gen_2.10;1.0.1 differs from Scala binary \
version in project (2.10).
[warn] Binary version (2.9.2) for dependency org.scala-lang#scala-compiler;2.9.2
[warn] in de.sciss#scalacolliderugens-gen_2.10;1.0.1 differs from Scala binary \
version in project (2.10).
我应该担心吗?我在这里做的不好吗?
我知道......我的项目是斯卡拉2.10,_except_为它运行(如SBT,顺便说一句)使用Scala的2.9.2 __source代码generator__子项目。该生成器可以在Scala 2.9和2.10中发布合法的源代码。 –