scala - 如何在SBT中发布到多个存储库？

Question

我正在升级 Nexus 版本。作为该过程的一部分，我设置了一个新的 Nexus 实例，它将与旧的 Nexus 实例并行运行。

在迁移到新实例时，我想在停止旧实例之前彻底测试和审查新实例。这需要我临时修改 publish 工作流程，以便 sbt 将工件发布到两个 Nexus 实例。

我非常怀疑下面的代码是否真的有效:

    publishTo <<= (version) {
       version: String =>
       if (version.trim.endsWith("SNAPSHOT")) Some("snapshots" at "http://maven1.dev.net:8081/nexus/content/" + "repositories/snapshots/")
       else Some("releases" at "http://maven1.dev.net:8081/nexus/content/" + "repositories/releases/")
    },
    credentials += Credentials("Sonatype Nexus Repository Manager", "maven1.dev.net", "release-eng", "release"),

    publishTo <<= (version) {
       version: String =>
       if (version.trim.endsWith("SNAPSHOT")) Some("snapshots" at "http://maven2.dev.net:8081/nexus/content/" + "repositories/snapshots/")
       else Some("releases" at "http://maven2.dev.net:8081/nexus/content/" + "repositories/releases/")
    },
    credentials += Credentials("Sonatype Nexus Repository Manager", "maven2.dev.net", "release-eng", "release"),

我还尝试研究一个名为 sbt-multi-publish 的插件但我也无法编译和使用它。

Answer 1

与 Commands和 How to change a version setting inside a single sbt command?我可以定义一个新命令 - myPublishTo - 在执行原始 publish 任务之前更改 publishTo 设置:

def myPublishTo = Command.command("myPublishTo") { state =>
  val extracted = Project.extract(state)
  Project.runTask(
    publish in Compile,
    extracted.append(List(publishTo := Some(Resolver.file("file", target.value / "xxx"))), state),
    true
  )
  Project.runTask(
    publish in Compile,
    extracted.append(List(publishTo := Some(Resolver.file("file", target.value / "yyy"))), state),
    true
  )
  state
}

commands += myPublishTo

使用此命令，可以像任何其他命令/任务一样执行 myPublishTo。

您还可以在 中定义几个别名 - pxxx、pyyy 和 pxy >build.sbt 将使用 ; 执行一系列命令。

addCommandAlias("pxxx", "; set publishTo := Some(Resolver.file(\"file\", target.value / \"xxx\")) ; publish") ++
addCommandAlias("pyyy", "; set publishTo := Some(Resolver.file(\"file\", target.value / \"yyy\")) ; publish") ++
addCommandAlias("pxy", "; pxxx ; pyyy")

在 sbt 控制台中，您可以像执行任何其他命令/任务一样执行它们。

[sbt-0-13-1]> alias
    pxxx = ; set publishTo := Some(Resolver.file("file", target.value / "xxx")) ; publish
    pyyy = ; set publishTo := Some(Resolver.file("file", target.value / "yyy")) ; publish
    pxy = ; pxxx ; pyyy
[sbt-0-13-1]> pxy
[info] Defining *:publishTo
[info] The new value will be used by *:otherResolvers, *:publishConfiguration
[info] Reapplying settings...
[info] Set current project to sbt-0-13-1 (in build file:/Users/jacek/sandbox/so/sbt-0.13.1/)
...
[info]  published sbt-0-13-1_2.10 to /Users/jacek/sandbox/so/sbt-0.13.1/target/xxx/default/sbt-0-13-1_2.10/0.1-SNAPSHOT/sbt-0-13-1_2.10-0.1-SNAPSHOT-javadoc.jar
[success] Total time: 1 s, completed Jan 9, 2014 11:20:48 PM
[info] Defining *:publishTo
[info] The new value will be used by *:otherResolvers, *:publishConfiguration
[info] Reapplying settings...
...
[info]  published sbt-0-13-1_2.10 to /Users/jacek/sandbox/so/sbt-0.13.1/target/yyy/default/sbt-0-13-1_2.10/0.1-SNAPSHOT/sbt-0-13-1_2.10-0.1-SNAPSHOT-javadoc.jar
[success] Total time: 0 s, completed Jan 9, 2014 11:20:49 PM