在针对 2.9 交叉构建的项目中使用仅 2.10 的 SBT 插件 [英] Using a 2.10-only SBT plugin in a project that's cross-built against 2.9

问题描述

假设我有一个针对 Scala 2.9.3 和 2.10.4 交叉构建的 SBT 0.13 项目.我只想在 2.10 版本中使用 SBT 插件(sbt-coveralls)，因为插件不适用于 2.9.

Suppose I've got a SBT 0.13 project that's cross-built against Scala 2.9.3 and 2.10.4. I want to use an SBT plugin (sbt-coveralls) for the 2.10 build only, because the plugin isn't available for 2.9.

我知道我可以使用 CrossVersion 有条件地将插件设置添加到 2.10 版本中，但这对 addSbtPlugin 不会出现的事实没有帮助为 2.9 版本等找到任何东西

I know that I could use CrossVersion to conditionally add the plugin settings to the 2.10 build, but that doesn't help with the fact that addSbtPlugin isn't going to find anything for the 2.9 build, etc.

我假设这是不可能的(缺少一些非常混乱的临时 shell 脚本)，但我不是 SBT 向导，如果能以一种好的方式对 SBT 的奥秘感到惊讶，那就太好了.

I'm assuming this is impossible (short of some really messy ad-hoc shell scripting) but I'm not an SBT wizard, and it would be nice to be surprised by the mysteries of SBT in a good way for once.

推荐答案

发现这个可怕的变通方法，但它似乎确实有效:

Found this horrible hack of a workaround, but it does seem to work:

resolvers <++= scalaVersion {
  case v if v startsWith( "2.12" ) =>
    Seq.empty

  case _ =>
    addSbtPlugin( "org.scoverage" % "sbt-scoverage" % "1.0.4" )
    addSbtPlugin( "org.scoverage" % "sbt-coveralls" % "1.0.0" )
    Seq( Classpaths.sbtPluginReleases )
}

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