sbt-sequential adds sequential tasks to sbt.
NOTE:
While this plugin provides a macro that allows you to code in imperative-looking code, a weaker version of it (essentially a list of keys) was add to sbt, as of version 0.13.8.
See the relevant release notes as well as Sequencing section in the docs.
This is an experimental plugin. Add this to project/sequential.sbt:
addSbtPlugin("com.eed3si9n" % "sbt-sequential" % "0.1.0")This plugin implicitly adds Def.sequentialTask[T] method, which returns a sequential task.
val startServer = taskKey[Unit]("start server.")
val stopServer = taskKey[Unit]("stop server.")
val integrationTest = taskKey[Int]("integration test.")
// normal task
startServer := {
println("start")
}
// normal task
stopServer := {
println("stop")
}
// sequential task
lazy val integrationTestImpl = Def.sequentialTask {
startServer.value
val n = 1
Thread.sleep(2000)
stopServer.value
n
}
integrationTest := integrationTestImpl.valueSee sequencing tasks with sbt-sequential for details.
MIT License. Copyright @eed3si9n (Eugene Yokota).