SBT:跨平台的方式来设置java.library.path吗? [英] SBT: Cross-platform way to set java.library.path?

问题描述

我当时正在从事一个需要加载本机库的项目，到目前为止，所有开发都仅限于Linux.为了run我的项目，我可以简单地启用派生并按如下所示修改java.library.path:

I was working on a project that requires loading of native libraries, and so far, all development was restricted to Linux. In order to run my project, I could simply enable forking and modify java.library.path as follows:

javaOptions in run += "-Djava.library.path=some/common/path:lib/native/linux"

我的问题是:我该如何以跨平台的方式做同样的事情，以便与基于Windows的开发人员共享我的build.sbt.到目前为止，我尤其无法解决三件事:

My question is: How can I do the same in a cross-platform way, so that I can share my build.sbt with a Windows-based developer. There are in particular three things that I couldn't figure out so far:

• 我知道SBT允许构造独立于平台的路径，例如"dir1" / "dir2"，但是我不知道跨平台的方式来连接多个路径(因为在Linux上是:，在Windows上是; ).
• 是否可以根据平台附加lib/native/linux 或 lib/native/windows?
• 我上面的方法覆盖了java.library.path-可以附加吗?

• I know that SBT allows to construct platform-independent paths like "dir1" / "dir2", but I'm not aware of a cross-platform way to join multiple paths (since it is : on Linux and ; on Windows).
• Is it possible to append either lib/native/linux or lib/native/windows dependent on the platform?
• My approach above overwrites java.library.path -- is it possible to append instead?

推荐答案

由于您可以使用任何Scala代码，因此您当然可以这样做

Since you can use any Scala code, you can of course do

val folderName =
  if (System.getProperty("os.name").startsWith("Windows")) "windows" else "linux"

val libPath = Seq("some/common/path", s"lib/native/$folderName").mkString(java.io.File.pathSeparator)

javaOptions in run += s"-Djava.library.path=$libPath"

尽管这不能回答您的最后一个问题.

though this doesn't answer your last question.

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