如何在 sbt、Eclipse 和 github 中初始化一个新的 Scala 项目

1. Create a new repo in Github.
2. Decide a directory location for the new project
3. In eclipse, use the Git Repositories View to import the Github repo into that location. Alternatively you can use command line git for that.
4. Locate to that same location you've chosen for the project and run sbt eclipse. This makes sure eclipse will be able to handle the sbt project structure, so that your project can be built by sbt while also being intelligible for eclipse. If sbt eclipse doesn't work, the sbt eclipse plugin is probably not installed in sbt - install it.
5. In eclipse, use File --> Import --> General --> Existing Projects into Workspace, selecting that same location, so that eclipse builds its project structure for the file structure having just been prepared by sbt.

6. Make git ignore all but the core of your new project by updating the .gitignore file to ignore eclipse and sbt files. The following seems to be currently fine.

*.class
*.log

# sbt specific
dist/*
target/
lib_managed/
src_managed/
project/boot/
project/plugins/project/

# Scala-IDE specific
.scala_dependencies

# Eclipse specific
.project
.classpath
.cache

您现在应该能够在 eclipse 和 sbt 中运行项目，并通过 git 提交和推送代码更改.要查看空项目运行，这在这个阶段可能很有意义，您可以在 eclipse 中添加一个 scala 类，仅包含以下代码.请注意，scala 源代码通常应位于 src/main/scala 下.如果此路径尚不存在，请通过例如创建它mkdir -p src/main/scala 在 Unix 上.

object hello {
  def main(args: Array[String]) {
    println("Main starting")  
  }
}

object app extends App {
  println("Application starting")  
}