coffeescript - 在 SBT 设置中将目录附加到 watch-sources

Question

我想在 watchSources 设置中添加一个目录，以在我在该目录中保存文件时触发构建任务。

override def baseProject = play.Project(
  moduleName,
  moduleVersion,
  dependencies = libraries,
  path = file(location),
  settings = moduleSettings ++ Seq(
    watchSources <++= baseDirectory map { dir =>
      Seq(
        dir / "src/main/javascript"
      )
    }
  )
)

我似乎无法解决以下错误:

type mismatch;
[error]  found   : sbt.Project.Initialize[ScalaObject with Equals]
[error]  required: sbt.Project.Initialize[sbt.Task[?]]
[error] Note: ScalaObject with Equals >: sbt.Task[?], but trait Initialize is invariant in type T.
[error] You may wish to define T as -T instead. (SLS 4.5)
[error]     watchSources <++= baseDirectory { f =>
[error]                                     ^
[error] one error found
[error] (compile:compile) Compilation failed
Project loading failed: (r)etry, (q)uit, (l)ast, or (i)gnore?

如何将文件序列附加到监视源任务的结果中？

Answer 1

      watchSources <++= baseDirectory map { path => ((path / "src/main/webapp/coffee") ** "*.coffee").get }