sbt/util/control/ExitHook.scala

22 lines
682 B
Scala

/* sbt -- Simple Build Tool
* Copyright 2009, 2010 Mark Harrah
*/
package sbt
/** Defines a function to call as sbt exits.*/
trait ExitHook extends NotNull
{
/** Provides a name for this hook to be used to provide feedback to the user. */
def name: String
/** Subclasses should implement this method, which is called when this hook is executed. */
def runBeforeExiting(): Unit
}
object ExitHooks
{
/** Calls each registered exit hook, trapping any exceptions so that each hook is given a chance to run. */
def runExitHooks(exitHooks: Seq[ExitHook]): Seq[Throwable] =
exitHooks.flatMap( hook =>
ErrorHandling.wideConvert( hook.runBeforeExiting() ).left.toOption
)
}