如何在 sbt 设置初始化期间打印到流 [英] How to print to stream during sbt setting initialization

问题描述

我正在尝试在配置 sbt 设置时打印警告消息.我最初的尝试看起来像这样:

I am trying to print a warning message whilst configuring an sbt setting. My initial attempt looks something like this:

setting := {
  val log = streams.value.log
  val condition = //check something
  if (condition) {
    log.warn("Warning, condition! Specific functionality may not work.")
    //some default
  } else {
    //something else
  }
}

然而，由于 streams 是一个 TaskKey，它的值只能从任务中访问.此外，我的设置会被其他设置重复使用，因此我无法将其定义为任务.

However, since streams is a TaskKey, its value can only be accessed from tasks. Furthermore, my setting is reused by other settings therefore I don't have the option of defining it as a task.

因此我的问题是:在设置初始化期间打印警告的最佳方法是什么?

Hence my question: what is the best way to print warnings during setting initialization?

推荐答案

sLog.value.warn("danger!")

sLog 是一个 SettingKey[Logger] 用于设置初始化.

sLog is a SettingKey[Logger] for use from setting initialization.

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