scala - sbt 子项目的项目目录

Question

sbt 子项目可以有自己的project目录？或者只有根项目可以使用 .scala 帮助文件为构建项目目录？。下面是我目前的构建结构。 /my-project/sub-projects/sub-project-1/build.sbt无法访问 /my-project/sub-projects/sub-project-1/SubProjectHelper.scala 中定义的对象.

/my-project
  build.sbt
  /projects
    Helper.scala
  sub-projects
    sub-project-1
      build.sbt
      /projects
        SubProjectHelper.scala

更新:
sub-project-1/build.sbt 中的以下 sbt 定义

lazy val localhost = (project in file(".")).settings (
    name := """localhost""",
    version := Common.version,
    scalaVersion := Common.scalaVersion,
    libraryDependencies ++= Common.dependencies,
    libraryDependencies ++= Localhost.dependencies
)

因以下错误而失败

    libraryDependencies ++= Localhost.dependencies
                            ^
sbt.compiler.EvalException: Type error in expression
    at sbt.compiler.Eval.checkError(Eval.scala:384)
    at sbt.compiler.Eval.compileAndLoad(Eval.scala:183)
    at sbt.compiler.Eval.evalCommon(Eval.scala:152)
    at sbt.compiler.Eval.evalDefinitions(Eval.scala:122)
    at sbt.EvaluateConfigurations$.evaluateDefinitions(EvaluateConfigurations.scala:271)
    at sbt.EvaluateConfigurations$.evaluateSbtFile(EvaluateConfigurations.scala:109)
    at sbt.Load$.sbt$Load$$loadSettingsFile$1(Load.scala:712)

Common 定义在/my-project/projects/Common.scala 中并且没有问题。但是Localhost定义在/my-project/sub-projects/sub-project-1/projects/SubProjectHelper.scala在sub-project-1 build.sbt中没有正确解析

Answer 1

是的，他们可以，而且您甚至不需要 sub-projects dir，只需放置 sub-project-1在 my-project目录