Scala SBT AssemblyMergeStrategy问题

问题描述

最近两三天，我一直在尝试解决sbt程序集构建逻辑的某些问题。与assemblyMergeStrategy有关。 SBT版本1.2.8。

它看起来像这样：

assemblyMergeStrategy in assembly := {
      case PathList("javax","inject",_ @ _*) => MergeStrategy.last
      case PathList("javax","servlet","activation",_ @ _*) => MergeStrategy.last
      case PathList("org","apache",_ @ _*) => MergeStrategy.last
      case PathList("com","google","typesafe","microsoft",xs @ _*) => MergeStrategy.last
      case "about.html" => MergeStrategy.rename
      case "plugin.properties" => MergeStrategy.last
      case "log4j.properties" => MergeStrategy.last
      case PathList("meta-inf",xs @ _*) =>
        xs match {
          case "MANIFEST.MF" :: Nil => MergeStrategy.discard
          case "mailcap" :: Nil => MergeStrategy.last
          case "mimetypes.default" :: Nil => MergeStrategy.last
          // Concatenate everything in the services directory to keep GeoTools happy.
          case "services" :: _ :: Nil =>
            MergeStrategy.concat
          // Concatenate these to keep JAI happy.
          case "javax.media.jai.registryFile.jai" :: Nil | "registryFile.jai" :: Nil |
              "registryFile.jaiext" :: Nil =>
            MergeStrategy.concat
          case name :: Nil => {
            // Must exclude meta-inf/*.([RD]SA|SF) to avoid "Invalid signature file digest for Manifest main attributes" exception.
            if (name.endsWith(".RSA") || name.endsWith(".DSA") || name.endsWith(".SF"))
              MergeStrategy.discard
            else
              MergeStrategy.first
          }
          case _ => MergeStrategy.first
        }
      case x =>
        val oldStrategy = (assemblyMergeStrategy in assembly).value
        oldStrategy(x)
        //MergeStrategy.first
    }

出于某种原因，我不认为com.microsoft合并策略已被选中或类似之类。

[error] 1 error was encountered during merge
[error] java.lang.RuntimeException: deduplicate: different file contents found in the following:
[error] /Users/t23528/.ivy2/cache/com.microsoft.azure/azure-mgmt-appservice/jars/azure-mgmt-appservice-1.23.0.jar:maven.properties
[error] /Users/t23528/.ivy2/cache/com.microsoft.azure/azure-mgmt-batch/jars/azure-mgmt-batch-1.23.0.jar:maven.properties
[error] /Users/t23528/.ivy2/cache/com.microsoft.azure/azure-mgmt-batchai/jars/azure-mgmt-batchai-1.23.0.jar:maven.properties

还有来自Microsoft jar的许多错误，都带有相同的maven.properties错误。

如果我将程序集的最后一部分保留为

case x =>
  //val oldStrategy = (assemblyMergeStrategy in assembly).value
  //oldStrategy(x)
  MergeStrategy.first

构建通过。知道我在做什么错吗？任何帮助将不胜感激。

我尝试升级到最新的sbt版本1.3.13，看起来它正在使用其他缓存，不再是ivy2而是Coursier。

[error] 1 error was encountered during merge
[error] java.lang.RuntimeException: deduplicate: different file contents found in the following:
[error] /Users/t23528/Library/Caches/Coursier/v1/https/repo1.maven.org/maven2/com/microsoft/azure/azure-mgmt-appservice/1.23.0/azure-mgmt-appservice-1.23.0.jar:maven.properties
[error] /Users/t23528/Library/Caches/Coursier/v1/https/repo1.maven.org/maven2/com/microsoft/azure/azure-mgmt-batch/1.23.0/azure-mgmt-batch-1.23.0.jar:maven.properties

谢谢。

解决方法

您能尝试这样的事情吗？

case x if x.contains("com.microsoft") => MergeStrategy.last

sbt sbt-assembly scala