sbt:在子项目上运行任务 [英] sbt: run task on subproject

问题描述

我有以下项目结构:

lazy val root = project.aggregate(rest,backend)
lazy val rest = project
lazy val backend = project

当我从父级执行运行"任务时，我希望后端"项目中的特定类执行其 main 方法.我将如何做到这一点?

When I execute the "run" task from the parent, I want a specific class from the "backend" project to have its main method executed. How would I accomplish this?

推荐答案

lazy val root = project.aggregate(rest,backend).dependsOn(rest,backend) //<- don't forget dependsOn
lazy val rest = project
lazy val backend = project.settings(mainClass in (Compile, run) := Some("fully.qualified.path.to.MainClass"))

run in Compile <<= (run in Compile in backend)

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