scala 使用 sbt 0.11.2 安装 sbt-assembly
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installing sbt-assembly with sbt 0.11.2
提问by dsg
I am trying to install sbt-assembly by following the instructionsin order to make a stand-alone jar that can run on a computer without scala installed.
我正在尝试按照说明安装 sbt-assembly，以便制作一个可以在没有安装 scala 的计算机上运行的独立 jar。
So far these are the steps I've taken.
到目前为止，这些是我采取的步骤。
I created a plugins.sbt file:
我创建了一个 plugins.sbt 文件：
$ cat sbt/project/plugins.sbt
addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "0.7.2")
And I added the following to the beginning of my build.sbt file:
我在 build.sbt 文件的开头添加了以下内容：
$ head -n3 sbt/build.sbt
import AssemblyKeys._ // put this at the top of the file
seq(assemblySettings: _*)
But when I run sbt, I get the following error:
但是当我运行 sbt 时，出现以下错误：
sbt/build.sbt:1: error: not found: value AssemblyKeys
import AssemblyKeys._
回答by dsg
Make sure you are running sbt version at least 0.11 by typing
$ sbt sbt-versionat the bash prompt.
Make sure you have the plugins file set up as follows:
$ cat sbt/project/plugins.sbt addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "0.7.2")Make your build file (
build.sbt) look like this:import AssemblyKeys._ seq(assemblySettings: _*) name := "my_project" version := "1.0" scalaVersion := "2.9.1" libraryDependencies ++= Seq( "org.scalatest" %% "scalatest" % "1.6.1" % "test", "commons-lang" % "commons-lang" % "2.6" ) traceLevel in run := 0 fork in run := true scalacOptions ++= Seq("-optimize") // The following is the class that will run when the jar is compiled! mainClass in assembly := Some("MyMain")
通过键入确保您运行的 sbt 版本至少为 0.11
$ sbt sbt-version在 bash 提示符下。
确保您的插件文件设置如下：
$ cat sbt/project/plugins.sbt addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "0.7.2")使您的构建文件 (
build.sbt) 看起来像这样：import AssemblyKeys._ seq(assemblySettings: _*) name := "my_project" version := "1.0" scalaVersion := "2.9.1" libraryDependencies ++= Seq( "org.scalatest" %% "scalatest" % "1.6.1" % "test", "commons-lang" % "commons-lang" % "2.6" ) traceLevel in run := 0 fork in run := true scalacOptions ++= Seq("-optimize") // The following is the class that will run when the jar is compiled! mainClass in assembly := Some("MyMain")
回答by jrudolph
Make sure you don't have a project/plugins folder lying around. This may prevent other mechanisms of specifying plugins from working.
确保您周围没有项目/插件文件夹。这可能会阻止其他指定插件的机制工作。
回答by Vasil Remeniuk
You shouldn't import plugin settings into build.sbt(basic configuration): 1) build.sbtis not a normal Scala source file 2) plugin settings are pre-imported.
您不应该将插件设置导入build.sbt（基本配置）：1)build.sbt不是普通的 Scala 源文件 2) 插件设置是预先导入的。
So you simply should do
所以你应该做
seq(assemblySettings: _*)
Imports are required only when you use full/extended build configuration.
仅当您使用完整/扩展构建配置时才需要导入。
