SBT 如何将输入从一个 inputTask 传递到另一个 inputTask [英] SBT How to pass input from one inputTask to another inputTask

问题描述

我在使用 sbt v0.13.2 输入任务时遇到问题

I have problem with input tasks using sbt v0.13.2

我想要一个接受输入的任务，将该输入设置为系统属性，然后运行另一个任务，例如使用该系统属性的测试.

I want to have a task which accepts input, sets that input as system property and run another task after all that, for example tests which use that system property.

我需要在单独的任务中设置系统属性，因为在测试期间过度属性不可见.但是，它在同一任务的后续运行期间可见.

I need to set system property in seperate task because overwise property is not visible during test. It is however visible during subsequent run of the same task.

lazy val setEnvironmentTask = taskKey[Unit]("Sets environment variable")

lazy val integrationTest = taskKey[Unit]("Runs integration test")

lazy val runIntegrationTest = taskKey[Unit]("Runs everything")

setEnvironmentTask := {
  System.setProperty("checkEnv", "production")
}

integrationTest := {
  (testOnly in Test).toTask(" integrations.MatchModelsIntegrationTest").value
}

runIntegrationTest := {
  setEnvironmentTask.value
  integrationTest.value
}

这有效，但正如您在 setEnvironmentTask 中看到的第二个参数是固定的.

This works but as you can see in the setEnvironmentTask second argument is fixed.

我未能找到解决方案.一些方法导致 error: Illegal dynamic reference，如下所示，其中两个任务更改为 inputTasks 并添加了导入:

I have failed finding solutions. Some of approaches resulted in error: Illegal dynamic reference, like below where two tasks are changed to inputTasks and import is added:

import sbt.complete.Parsers.spaceDelimited

lazy val setEnvironmentTask = inputKey[Unit]("Sets environment variable")

lazy val runIntegrationTest = inputKey[Unit]("Runs everything")

setEnvironmentTask := {
   val env = spaceDelimited("<arg>").parsed.head
   System.setProperty("checkEnv", env)
}

runIntegrationTest := {
   val env = spaceDelimited("<arg>").parsed.head
   setEnvironmentTask.toTask(env).value  // <<<<< this is there is fails with "error: Illegal dynamic reference: env"
   integrationTest.value
}

应该像sbt runIntegrationTest production

总而言之，如何创建将输入传播到其他任务的 inputTasks?

In summary, how to create inputTasks which propagate input to other tasks?

推荐答案

import sbt.complete.Parsers.spaceDelimited

lazy val setEnvironmentTask = inputKey[Unit]("Sets environment variable")

lazy val runIntegrationTest = inputKey[Unit]("Runs everything")

lazy val integrationTest = taskKey[Unit]("Runs integration test")

lazy val setEnvTask: Def.Initialize[InputTask[Unit]] = Def.inputTask{
  val env = spaceDelimited("<arg>").parsed.head
  System.setProperty("checkEnv", env)
}

setEnvironmentTask <<= setEnvTask 

runIntegrationTest := setEnvironmentTask.parsed.flatMap{ _ =>
  integrationTest.taskValue
}.value

integrationTest := {
  println("integration test")
}

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