如何在 scalajs-react 项目中使用 sbt-scalajs 插件排除 javascript 依赖项？答案

【问题标题】：How to exclude javascript dependencies using the sbt-scalajs plugin in a scalajs-react project?如何在 scalajs-react 项目中使用 sbt-scalajs 插件排除 javascript 依赖项？
【发布时间】：2015-10-08 05:01:38
【问题描述】：

如何使用 sbt-scalajs 插件排除 scalajs 依赖？

我正在尝试导入以下库

"org.webjars.bower" % "react-bootstrap-datetimepicker" % "0.0.14" / "react-bootstrap-datetimepicker.js"

但是这个库正在下载我的项目中已经存在的其他依赖项（“react”和“react-bootstrap”）并且我遇到了版本冲突。

我尝试过使用排除功能

"org.webjars.bower" % "react-bootstrap-datetimepicker" % "0.0.14" exclude ("org.webjars.bower", "react")

但这不允许我将/“react-bootstrap-datetimepicker.js”附加到命令中。

我得到的例外是：

org.scalajs.core.tools.classpath.JSLibResolveException: Some references to JS libraries could not be resolved:
- Ambiguous reference to a JS library: react-bootstrap.js
  Possible paths found on the classpath:
  - META-INF/resources/webjars/react-bootstrap/0.16.1/react-bootstrap.js
  - META-INF/resources/webjars/react-bootstrap/0.23.7/react-bootstrap.js
  originating from: adminJS:compile

    at org.scalajs.core.tools.classpath.PartialClasspath.resolveAllResourceNames(PartialClasspath.scala:137)
    at org.scalajs.core.tools.classpath.PartialClasspath.resolveDependencies(PartialClasspath.scala:80)
    at org.scalajs.core.tools.classpath.PartialClasspath.resolve(PartialClasspath.scala:64)
    at org.scalajs.sbtplugin.ScalaJSPluginInternal$$anonfun$11.apply(ScalaJSPluginInternal.scala:140)
    at org.scalajs.sbtplugin.ScalaJSPluginInternal$$anonfun$11.apply(ScalaJSPluginInternal.scala:137)
    at scala.Function1$$anonfun$compose$1.apply(Function1.scala:47)
    at sbt.$tilde$greater$$anonfun$$u2219$1.apply(TypeFunctions.scala:40)
    at sbt.std.Transform$$anon$4.work(System.scala:63)
    at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:226)
    at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:226)
    at sbt.ErrorHandling$.wideConvert(ErrorHandling.scala:17)
    at sbt.Execute.work(Execute.scala:235)
    at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:226)
    at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:226)
    at sbt.ConcurrentRestrictions$$anon$4$$anonfun$1.apply(ConcurrentRestrictions.scala:159)
    at sbt.CompletionService$$anon$2.call(CompletionService.scala:28)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

【问题讨论】：

标签： sbt scala.js scalajs-react

【解决方案1】：

exclude 是 sbt 的libraryDependencies 的一个特性，在jsDependencies 中没有复制。所以你不能直接在jsDependencies 中声明exclude。但是，由于 jsDependencies 是在 libraryDependencies 之上构建的，因此您可以通过将两者结合起来实现您想要的效果，只需少量重复代码：

libraryDependencies +=
  "org.webjars.bower" % "react-bootstrap-datetimepicker" % "0.0.14" exclude ("org.webjars.bower", "react")
jsDependencies +=
  "org.webjars.bower" % "react-bootstrap-datetimepicker" % "0.0.14" / "react-bootstrap-datetimepicker.js"

【讨论】：