试图了解如何设置SBT subprojects。为我的所有子项目设置默认依赖项的正确方法是什么?
我尝试了这个,但是我的子项目没有选择任何依赖项(它们下载得很好)。
import sbt._
class MyProjects(info: ProjectInfo) extends DefaultProject(info)
{
val projA = project("projA", "ProjectA")
val projB = project("projB", "ProjectB")
val akkaRepo = "Akka maven2 repo" at "http://www.scalablesolutions.se/akka/repository/"
val multiverseRepo = "Multiverse maven2 repo" at "http://multiverse.googlecode.com/svn/maven-repository/releases/"
val guiceyFruitRepo = "GuiceyFruit Maven2 repo" at "http://guiceyfruit.googlecode.com/svn/repo/releases/"
val jBossRepo = "JBoss maven2 repo" at "https://repository.jboss.org/nexus/content/groups/public/"
val junit = "junit" % "junit" % "4.5" % "test"
val scalatest = "org.scalatest" % "scalatest" % "1.2" % "test"
val akka = "se.scalablesolutions.akka" % "akka-core_2.8.0" % "0.10"
}
然后,基于this我尝试了以下操作。它起作用了,但这不是我期望要做的。为所有子项目设置默认依赖项不是更简单吗?
import sbt._
class MyProjects(info: ProjectInfo) extends DefaultProject(info)
{
val projA = project("projA", "ProjectA", new Proj(_))
val projB = project("projB", "ProjectB", new Proj(_))
val akkaRepo = "Akka maven2 repo" at "http://www.scalablesolutions.se/akka/repository/"
val multiversRepo = "Multiverse maven2 repo" at "http://multiverse.googlecode.com/svn/maven-repository/releases/"
val guiceyFruitRepo = "GuiceyFruit Maven2 repo" at "http://guiceyfruit.googlecode.com/svn/repo/releases/"
val jBossRepo = "JBoss maven2 repo" at "https://repository.jboss.org/nexus/content/groups/public/"
class Proj(info:ProjectInfo) extends DefaultProject(info){
val junit = "junit" % "junit" % "4.5" % "test"
val scalatest = "org.scalatest" % "scalatest" % "1.2" % "test"
val akka = "se.scalablesolutions.akka" % "akka-core_2.8.0" % "0.10"
}
}
编辑:应该指出有一个better way来使用Akka,但是只是说明了我的观点。
最佳答案
使用继承和混合:
import sbt._
class ModularProject(info: ProjectInfo) extends DefaultProject(info){
lazy val childProject = project("projA", "ProjectA",
new DefaultProject(_)
with Repositories
with GlobalDependencies
with AkkaDependencies)
trait Repositories{
lazy val akkaRepo = "Akka maven2 repo" at
"http://www.scalablesolutions.se/akka/repository/"
lazy val multiversRepo = "Multiverse maven2 repo" at
"http://multiverse.googlecode.com/svn/maven-repository/releases/"
lazy val guiceyFruitRepo = "GuiceyFruit Maven2 repo" at
"http://guiceyfruit.googlecode.com/svn/repo/releases/"
lazy val jBossRepo = "JBoss maven2 repo" at
"https://repository.jboss.org/nexus/content/groups/public/"
}
trait GlobalDependencies{
lazy val junit = "junit" % "junit" % "4.5" % "test"
lazy val scalatest = "org.scalatest" % "scalatest" % "1.2" % "test"
}
trait AkkaDependencies{
lazy val akka = "se.scalablesolutions.akka" % "akka-core_2.8.0" % "0.10"
}
}