scala - 如何在多个项目中使用 sbt-native-packager

Question

我正在将几个大型 scala 项目合并为一个。目前他们使用剪切和粘贴(不是很多代码)共享代码，我正在制作它以便有一个通用的实用程序 jar。这些项目大部分部署在亚马逊云上，使用 sbt-native-packager 打包

我的问题是我不知道如何为 sbt native manager 配置多个项目。我也不是很熟悉它，在完成所有初始工作后才进入该项目。

我已将问题减少到我能解决的最小问题。在 https://github.com/stave-escura/multiprojectissue.git 有一个 git repo这说明了问题

在 project/plugins.sbt 中，重要的几行是

addSbtPlugin("com.typesafe.sbt" % "sbt-native-packager" % "1.0.6")
addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "0.14.0")

build.sbt 太长，放在这里，但它的粗略形状是

import com.typesafe.sbt.SbtNativePackager
import com.typesafe.sbt.packager.archetypes.JavaServerAppPackaging

enablePlugins(SbtNativePackager)

enablePlugins(JavaServerAppPackaging)

lazy val commonSettings = Seq(
  ...
  scalaVersion := "2.11.8",
  assemblyJarName in assembly := s"${name.value}.jar",
  assemblyMergeStrategy in assembly := {
    case "BUILD" => MergeStrategy.discard
    case other => MergeStrategy.defaultMergeStrategy(other)
  }
)

lazy val project1Settings = commonSettings ++ Seq(
  rpmVendor := "someOrganisation",
  packageDescription in Rpm := "Some description1",
  rpmLicense := Some("Copyright 2016 someOrganisation. All rights reserved."),
  rpmRequirements := Seq(
    "java-1.8.0-openjdk"
  ),
  version in Rpm := "1",
  rpmRelease := version.value,
  rpmDaemonLogFile := s"${name.value}.log",
  daemonUser in Linux := "someUserName",
  daemonGroup in Linux := (daemonUser in Linux).value,
  rpmPost := Some(
    """|chkconfig --add someService1
      |chkconfig someService1 on
    """.stripMargin),
  linuxPackageMappings ++= Seq()    // <--- line 53
)


lazy val project2Settings = commonSettings ++ Seq(
  identical to project 1 settings except
  packageDescription in Rpm := "Some description2",
  rpmPost := Some(
    """|chkconfig --add someService2
      |chkconfig someService2 on
    """.stripMargin),
  linuxPackageMappings ++= Seq()   // <--- line 72
)

lazy val project1 = (project in file("components/service1")).settings(project1Settings: _*)

lazy val project2 = (project in file("components/service2")).settings(project2Settings: _*)

在实际项目中，linuxPackageMappings 相当复杂，是我的问题。它们在项目之间有所不同。当我将 build.sbt 加载到 sbt 时，我得到了错误

References to undefined settings: 

  project2/*:linuxPackageMappings from project2/*:linuxPackageMappings (~/git/multiprojectissue/build.sbt:72)

  project1/*:linuxPackageMappings from project1/*:linuxPackageMappings (~/git/multiprojectissue/build.sbt:53)

    at sbt.Init$class.Uninitialized(Settings.scala:265)
    ...
    at xsbt.boot.Boot.main(Boot.scala)
[error] References to undefined settings: 
[error] 
[error]   project2/*:linuxPackageMappings from project2/*:linuxPackageMappings (/Users/ricep02/git/multiprojectissue/build.sbt:72)
[error] 
[error]   project1/*:linuxPackageMappings from project1/*:linuxPackageMappings (/Users/ricep02/git/multiprojectissue/build.sbt:53)

第 53 和 72 行标记在我上面包含的 build.sbt 代码段中。

我不知道的事
我在这方面不够熟练，不知道为什么该项目有 sbt-assembly 和 sbt-package manager。我已经从 plugins.sbt 中评论了 sbt-assembly 并且仍然遇到这个问题，所以我现在不认为它是有贡献的

我尝试过的事情
我尝试将子项目设置放入与实际组件关联的 build.sbt 文件中。我得到同样的问题。
我还仔细查看了示例项目，例如 https://github.com/muuki88/sbt-native-packager-examples/tree/master/multi-module-build ，并阅读了 http://www.scala-sbt.org/sbt-native-packager/ 上的文档非常小心，虽然我对它没有“经验”:只是在“阅读文档”级别。我还查看了诸如 How to setup sbt-native-packager in a single module project with multiple mains 之类的问题。和 How to create a basic project setup using sbt-native-packager

有用的东西
将 packageMappings 留在 build.sbt 的“主体”中不会导致“sbt 加载问题”，但我还不知道它是否会真正构建包!

软件栈

操作系统:MacOs

Java:1.8.0_74-b02

斯卡拉:2.11.8

sbt: 0.13.8

sbt-native-packager 1.0.6

Answer 1

它看起来像 SbtNativePackager需要为 project1 启用和 project2在他们的设置中。

尝试通过添加 enablePlugins(SbtNativePackager) 来修改您的设置:

lazy val project1Settings = commonSettings ++ Seq(
    rpmVendor := "someOrganisation",
    packageDescription in Rpm := "Some description1",
    rpmLicense := Some("Copyright 2016 someOrganisation. All rights reserved."),
    rpmRequirements := Seq(
        "java-1.8.0-openjdk"
    ),
    version in Rpm := "1",
    rpmRelease := version.value,
    rpmDaemonLogFile := s"${name.value}.log",
    daemonUser in Linux := "someUserName",
    daemonGroup in Linux := (daemonUser in Linux).value,
    rpmPost := Some(
        """|chkconfig --add someService1
           |chkconfig someService1 on
        """.stripMargin),
    enablePlugins(SbtNativePackager),
    linuxPackageMappings ++= Seq()    // <--- line 53
)

项目 2 也是如此。

我建议你买一本像“SBT in Action”这样的书来帮助你开始使用“简单”的构建工具。