如何覆蓋控制檯的scalacOptions？

重寫scalacOptions爲SBT控制檯不爲我工作的基礎上，在討論：In sbt, how do you override scalacOptions for console in all configurations?如何覆蓋控制檯的scalacOptions？

我build.sbt的內容如下：

lazy val commonScalacOptions = Seq(
     "-deprecation", 
     "-encoding", "UTF-8", 
     "-feature", 
     "-unchecked", 
     "-Xfatal-warnings", 
     "-Xlint:-missing-interpolator,_", 
     "-Yinline-warnings", 
     "-Yno-adapted-args", 
     "-Ywarn-dead-code", 
     "-Ywarn-numeric-widen", 
     "-Ywarn-value-discard", 
     "-Ywarn-unused-import", 
     "-language:existentials", 
     "-language:experimental.macros", 
     "-language:implicitConversions", 
     "-language:higherKinds", 
     "-Xfuture") 

    lazy val commonSettings = Seq(
     scalaVersion := "2.11.11", 
     scalacOptions ++= commonScalacOptions, 
     scalacOptions in (Compile, console) := (scalacOptions in (Compile, console)).value filterNot ("-Ywarn-unused-import" == _), 
     scalacOptions in (Test, console)  := (scalacOptions in (Compile, console)).value) 

    lazy val root = Project("brontosaurus-rex", file("." + "brontosaurus-rex")).in(file(".")) 
     .settings(commonSettings: _*)

，當我運行一個SBT會議，我可以看到，-Ywarn-unused-imports選項不是compile:console::scalacOptions

> show compile:console::scalacOptions 
    [info] * -deprecation 
    [info] * -encoding 
    [info] * UTF-8 
    [info] * -feature 
    [info] * -unchecked 
    [info] * -Xfatal-warnings 
    [info] * -Xlint:-missing-interpolator,_ 
    [info] * -Yinline-warnings 
    [info] * -Yno-adapted-args 
    [info] * -Ywarn-dead-code 
    [info] * -Ywarn-numeric-widen 
    [info] * -Ywarn-value-discard 
    [info] * -language:existentials 
    [info] * -language:experimental.macros 
    [info] * -language:implicitConversions 
    [info] * -language:higherKinds 
    [info] * -Xfuture

然而部分，試圖運行console在我的源代碼文件，導致意外的錯誤一個未使用的導入：

> console 
    [info] Compiling 1 Scala source to [PROJECT_DIR]/brontosaurus-rex/target/scala-2.11/classes... 
    [error] [PROJECT_DIR]/brontosaurus-rex/src/main/scala/com/dinosaurs/BrontosaurusRex.scala:3: Unused import 
    [error] import scala.util.matching.Regex 
    [error]       ^
    [error] one error found 
    [error] (compile:compileIncremental) Compilation failed 
    [error] Total time: 0 s, completed May 21, 2017 7:45:53 PM

看來，錯誤是來自compile:compileIncremental到來。當我表現出compile:compileIncremental::scalacOptions內容我看到，我試圖篩選出的選項：

> show compile:compileIncremental::scalacOptions 
    [info] * -deprecation 
    [info] * -encoding 
    [info] * UTF-8 
    [info] * -feature 
    [info] * -unchecked 
    [info] * -Xfatal-warnings 
    [info] * -Xlint:-missing-interpolator,_ 
    [info] * -Yinline-warnings 
    [info] * -Yno-adapted-args 
    [info] * -Ywarn-dead-code 
    [info] * -Ywarn-numeric-widen 
    [info] * -Ywarn-value-discard 
    [info] * -Ywarn-unused-import 
    [info] * -language:existentials 
    [info] * -language:experimental.macros 
    [info] * -language:implicitConversions 
    [info] * -language:higherKinds 
    [info] * -Xfuture

現在，如果我檢查上面的，它似乎是由compile:scalacOptions提供。我感到困惑的是爲什麼compile:console::scalacOptions中的編譯器選項在運行console命令時似乎沒有被使用。

我希望能夠爲console運行一套不太嚴格的編譯器選項，這種做法似乎相當簡單。然而，我很難理解爲什麼現有的解決方案不再有效。任何人都可以幫助我直接在這裏？

來源

2017-05-22 Ascander Dost

首先，scalacOptions in (Compile, console)它意味着設置scalacOptions編譯階您在控制檯輸入。

當你編譯錯誤，這是由你去斯卡拉控制檯之前，編譯器將首先嚐試導致編譯當前項目既然你已經設置好的scalacOptions爲編譯，所以這錯誤已投擲。

來源

2017-05-22 04:37:27 chengpohi

啊，謝謝澄清！因此，由於'console'調用標準的'compile：scalacOptions'，所以沒有辦法讓它們與直接調用'compile'時使用的不同。我覺得在這種情況下我想要的是一個較輕的''risky：compile''或者其他類似的東西，所以'risky：console'將啓動一個控制檯會話，其編譯器選項比'console'更少。 –

如何覆蓋控制檯的scalacOptions？

回答

相關問題