package sbt
import java.io.{File, PrintWriter}
final case class GlobalLogging(full: Logger, backed: ConsoleLogger, backing: GlobalLogBacking)
final case class GlobalLogBacking(file: File, last: Option[File], newLogger: (PrintWriter, GlobalLogBacking) => GlobalLogging, newBackingFile: () => File)
{
def shift(newFile: File) = GlobalLogBacking(newFile, Some(file), newLogger, newBackingFile)
def shiftNew() = shift(newBackingFile())
def unshift = GlobalLogBacking(last getOrElse file, None, newLogger, newBackingFile)
}
object GlobalLogBacking
{
def apply(newLogger: (PrintWriter, GlobalLogBacking) => GlobalLogging, newBackingFile: => File): GlobalLogBacking =
GlobalLogBacking(newBackingFile, None, newLogger, newBackingFile _)
}
object GlobalLogging
{
def initial(newLogger: (PrintWriter, GlobalLogBacking) => GlobalLogging, newBackingFile: => File): GlobalLogging =
{
val log = ConsoleLogger()
GlobalLogging(log, log, GlobalLogBacking(newLogger, newBackingFile))
}
}