如何在SBT命令中添加自定义工件

Question

任何人都可以告诉我如何在SBT Command内添加多个Artifacts？我想要做以下事情。考虑下面的树：

- target 
    |- scala-2.10 
     |- classes 
      |- my 
       |- package 
        |- foo 
         - bar 
         - john 
         - doe 

我想创建一个发布个人Artifact（JAR）为my/package下每个文件夹的命令。不应该有任何默认Artifact。依赖这个库的项目应该使用分类器，即

libraryDependencies += "whatever" % "whatever" % "1.0" Artifacts(Artifact("foo", "john")) 

这是我到目前为止。

def myCommand = Command.single("myCommand") { 
    case (currentState, arg) => 
     val extracted = Project.extract(currentState) 

     val compileDirectory = extracted.get[File](classDirectory in Compile) 
     val packageDir = new sbt.File(compileDirectory, s"my${File.separator}package") 
     val artifactDefinitions = IO.listFiles(packageDir).toList.map { 
     serviceDir => 
      val serviceName = serviceDir.name.split(File.separatorChar).reverse.head 
      println(s"Adding artifact for $serviceName") 

      val serviceTask = taskKey[File](s"Adds a $serviceName artifact") 
      serviceTask := { 
      serviceDir 
      } 
      val definition = addArtifact(Artifact("service", serviceName), serviceTask) 
      extracted.append(definition.settings, currentState) <-- fails on this line 
      definition 
     } 

     currentState 
    } 

错误我得到：

Reference to undefined setting: 

    *:serviceTask from *:packagedArtifacts ((sbt.BuildExtra) Defaults.scala:1767) 

Answer 1

def myCommand = Command.single("myCommand") { 
    case (currentState, arg) => 
     val extracted = Project.extract(currentState) 

     val targetDirectory = extracted.get[File](target in Compile) 
     val compileDirectory = extracted.get[File](classDirectory in Compile) 
     val packageDir = new sbt.File(compileDirectory, s"my${java.io.File.separator}package") 
     val additionalArtifacts = IO.listFiles(packageDir).toList.map { serviceDir => 
     val serviceName = serviceDir.name.split(java.io.File.separatorChar).reverse.head 
     println(s"Adding artifact for $serviceName") 

     val files = Path.allSubpaths(serviceDir) 
     val outputZip = new sbt.File(targetDirectory, s"$serviceName.jar") 
     sbt.IO.zip(files, outputZip) 

     (Artifact(serviceName, serviceName), outputZip) 
     }.toMap 

     val settings = Seq[Setting[_]](
     packagedArtifacts ++= additionalArtifacts, 
     artifacts ++= additionalArtifacts.keys.toSeq 
    ) 

     extracted.append(settings, s) 
    }