Question

这就是这种情况；我有一个与激活程序集成的播放应用程序。为了运行我的Grunt任务，我将Grunt.scala添加到了我的项目中

import java.net.InetSocketAddress

import play.sbt.PlayRunHook
import sbt._

object Grunt {
  def apply(base: File): PlayRunHook = {

    object GruntProcess extends PlayRunHook {

      var process: Option[Process] = None

      def osCommand(command: String): String = {
        System.getProperty("os.name").toLowerCase().startsWith("win") match{
          case true => s"cmd.exe /c $command"
          case false => command
        }
      }

      override def beforeStarted(): Unit = {
        Process(osCommand("grunt dist"), base).run
      }

      override def afterStarted(addr: InetSocketAddress): Unit = {
        process = Some(Process(osCommand("grunt watch"), base).run)
      }

      override def afterStopped(): Unit = {
        process.map(p => p.destroy())
        process = None
      }
    }

    GruntProcess
  }
}

然后将以下行添加到我的build.sbt中：

PlayKeys.playRunHooks += Grunt(baseDirectory.value)

基本上遵循Play的文档。所以现在为了运行我的项目，我使用以下激活器命令：

activator -Dsbt.log.noformat=true clean dist universal:packageZipTarball

问题是如何从scala类访问“ dist”命令行参数。我想使用该参数来确定我应该运行哪个Grunt任务（dist，test等）。

Answer 1

我发现this回购中的SBT文件很有教育意义。基本上可以从SBT文件（不是scala挂钩）处理不同的环境，如该文件底部所示：

....
// Execute frontend prod build task prior to play dist execution.
dist := (dist dependsOn `ui-prod-build`).value

// Execute frontend prod build task prior to play stage execution.
stage := (stage dependsOn `ui-prod-build`).value
....

在play sbt项目中访问命令行参数

1 个答案: