SBT 中测试和发布的不同编译选项? [英] Different compile options for tests and release in SBT?

问题描述

我有一个项目，我需要在创建二进制文件时禁用断言.现在我可以这样做:

I have a project where I need to disable assertions when creating the binaries. Now I could just do:

scalacOptions += "-Xdisable-assertions"

但是单元测试也将在没有断言的情况下运行.有没有(希望)简单的方法来实现我的需要?

But then also the unit tests would be run without assertions. Is there a (hopefully) simple way to achieve what I need?

推荐答案

您如何创建二进制文件?您使用什么任务/命令?

How do you create the binaries? What task/command do you use?

使用任务作为 scalacOptions 的范围来为它们设置不同的值.请参阅 按配置轴确定范围:

Use the task as the scope for scalacOptions to have different values for them. See Scoping by configuration axis:

默认情况下，所有与编译、打包和运行范围限定于配置，因此可能会起作用每种配置都不同.最明显的例子是任务键编译、打包和运行；但所有影响的键这些键(例如 sourceDirectories 或 scalacOptions 或fullClasspath) 也适用于配置.

By default, all the keys associated with compiling, packaging, and running are scoped to a configuration and therefore may work differently in each configuration. The most obvious examples are the task keys compile, package, and run; but all the keys which affect those keys (such as sourceDirectories or scalacOptions or fullClasspath) are also scoped to the configuration.

有疑问时使用inspect.

> inspect scalacOptions
[info] Task: scala.collection.Seq[java.lang.String]
[info] Description:
[info]  Options for the Scala compiler.
[info] Provided by:
[info]  {file:/C:/dev/sandbox/task-dependsOn/}task-dependson/compile:scalacOptions
[info] Defined at:
[info]  (sbt.Classpaths) Defaults.scala:1424
[info] Dependencies:
[info]  task-dependson/compile:autoCompilerPlugins
[info]  task-dependson/compile:settingsData
[info]  task-dependson/compile:update
[info]  task-dependson/compile:buildDependencies
[info]  task-dependson/compile:thisProjectRef
[info] Delegates:
[info]  task-dependson/compile:scalacOptions
[info]  task-dependson/*:scalacOptions
[info]  {.}/compile:scalacOptions
[info]  {.}/*:scalacOptions
[info]  */compile:scalacOptions
[info]  */*:scalacOptions
[info] Related:
[info]  b/compile:scalacOptions
[info]  b/test:scalacOptions
[info]  task-dependson/test:scalacOptions
[info]  task-dependson/jacoco:scalacOptions
[info]  a/jacoco:scalacOptions
[info]  */*:scalacOptions
[info]  a/test:scalacOptions
[info]  a/compile:scalacOptions
[info]  b/jacoco:scalacOptions

Compile 配置范围是默认范围(请参阅项目的 show defaultConfiguration)所以 scalacOptions += "-Xdisable-assertions"实际上是scalacOptions in Compile += "-Xdisable-assertions".使用不同的配置，比如 Test，你会得到不同的结果.

The Compile configuration scope is the default one (see show defaultConfiguration for a project) so scalacOptions += "-Xdisable-assertions" is in fact scalacOptions in Compile += "-Xdisable-assertions". Use different configuration, say Test, and you'll get different results.

然而，SBT 有一个问题(我第一次回复时就错过了)——设置是链接的，当一个设置没有在范围中定义时，它会从更通用的范围中获取它的值.当我说 scalacOptions +=... 实际上是 scalacOptions in Compile 我错过了设置的重要功能 - scalacOptions 是全局的，而 scalacOptions in Compile 是 Compile 范围的.

There's however a hitch in SBT (I missed the very first time I responded) - settings are chained and when a setting is not defined in a scope, it gets its value from a more general scope. When I said, scalacOptions +=... is in fact scalacOptions in Compile I missed the important feature of settings - scalacOptions is global while scalacOptions in Compile is Compile-scoped.

这篇关于SBT 中测试和发布的不同编译选项?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！