由于找到不同的文件内容，sbt 程序集失败

Question

我正在尝试在 GitLab 中构建一个项目。在 gitlab-ci.yml 中，我运行 sbt assembly 遇到了恼人的异常。

[error] (soda/*:assembly) deduplicate: different file contents found in the following:
[error] /root/.ivy2/cache/io.netty/netty-buffer/jars/netty-buffer-4.0.42.Final.jar:META-INF/io.netty.versions.properties
[error] /root/.ivy2/cache/io.netty/netty-common/jars/netty-common-4.0.42.Final.jar:META-INF/io.netty.versions.properties
[error] /root/.ivy2/cache/io.netty/netty-codec-http/jars/netty-codec-http-4.0.42.Final.jar:META-INF/io.netty.versions.properties
[error] /root/.ivy2/cache/io.netty/netty-codec/jars/netty-codec-4.0.42.Final.jar:META-INF/io.netty.versions.properties
[error] /root/.ivy2/cache/io.netty/netty-transport/jars/netty-transport-4.0.42.Final.jar:META-INF/io.netty.versions.properties
[error] /root/.ivy2/cache/io.netty/netty-handler/jars/netty-handler-4.0.42.Final.jar:META-INF/io.netty.versions.properties
[error] /root/.ivy2/cache/io.netty/netty-transport-native-epoll/jars/netty-transport-native-epoll-4.0.42.Final-linux-x86_64.jar:META-INF/io.netty.versions.properties

我尝试按照 sbt-assembly: deduplication found error 中的说明进行操作，看起来 MergeStrategy 已经到位，但异常仍然存在：

[info] Merging files...
[warn] Merging 'NOTICE' with strategy 'rename'
[warn] Merging 'README' with strategy 'rename'
[warn] Merging 'META-INF/NOTICE.txt' with strategy 'rename'
[warn] Merging 'license/NOTICE' with strategy 'rename'
[warn] Merging 'META-INF/NOTICE' with strategy 'rename'
[warn] Merging 'org/xerial/snappy/native/README' with strategy 'rename'
[warn] Merging 'license' with strategy 'rename'
[warn] Merging 'license/LICENSE' with strategy 'rename'
[warn] Merging 'META-INF/license' with strategy 'rename'
[warn] Merging 'META-INF/LICENSE.txt' with strategy 'rename'
[warn] Merging 'LICENSE.txt' with strategy 'rename'
[warn] Merging 'META-INF/LICENSE' with strategy 'rename'
[warn] Merging 'LICENSE' with strategy 'rename'
[warn] Merging 'META-INF/DEPENDENCIES' with strategy 'discard'
[warn] Merging 'META-INF/INDEX.LIST' with strategy 'discard'
[warn] Merging 'META-INF/MANIFEST.MF' with strategy 'discard'

我也尝试过更改sbt版本，但问题依旧。

任何关于如何解决这个问题的帮助都会很棒。

Answer 1

找遍了也没找到解决办法。检查以下解决方案是否适合您，它对我不起作用： https://github.com/sbt/sbt-assembly/issues/297

Answer 2

我曾经遇到过一些 Java 包和 log4j 的类似问题，我所做的是创建一个自定义合并策略，我只选择了第一个出现的地方。也许您可以调整该代码以适合您：

assemblyMergeStrategy in assembly := {
//  case PathList("javax", "servlet", xs @ _*)         => MergeStrategy.first
  case PathList("org", "apache", "commons", xs @ _*)        =>
 //   println(s"$xs")
    MergeStrategy.first
  case PathList(ps @ _*) if ps.last endsWith ".html" => MergeStrategy.first
  case "application.conf"                            => MergeStrategy.concat
  case "log4j.properties"                            => MergeStrategy.first
  case "unwanted.txt"                                => MergeStrategy.discard
  case x =>
    val oldStrategy = (assemblyMergeStrategy in assembly).value
    oldStrategy(x)
}

也许如果你改变

 case PathList("org", "apache", "commons", xs @ _*)        =>
 //   println(s"$xs")
    MergeStrategy.first

你有问题的包（netty）你设法解决了它：

 case PathList("io", "netty", xs @ _*)        =>
 //   println(s"$xs")
    MergeStrategy.first

Answer 3

最终我找到了解决这个问题的方法。由于它是一个游戏项目，我可以使用激活器将其包装起来并创建一个包。我使用以下代码来创建包： wget https://downloads.typesafe.com/typesafe-activator/1.3.7/typesafe-activator-1.3.7.zip && 解压缩 typesafe-activator-1.3.7.zip 1> /dev/null activator-dist-1.3.7/activator -Dsbt.log.noformat=true -java-home /usr/lib/jvm/java-1.8-openjdk package clean compile test dist

由于找到不同的文件内容，sbt 程序集失败

sbt assembly fails due to different file contents found

scala

sbt

gitlab

sbt-assembly