package cbt
import java.io._
object Stage2 extends Stage2Base{
def getBuild(context: Context) = {
new Lib( context.logger ).loadRoot( context ).finalBuild
}
def run( args: Stage2Args ): Unit = {
import args.logger
val paths = CbtPaths(args.cbtHome,args.cache)
import paths._
val lib = new Lib(args.logger)
logger.stage2(s"Stage2 start")
val loop = args.args.lift(0) == Some("loop")
val cross = args.args.lift(0) == Some("cross")
val taskIndex = if (loop || cross) {
1
} else {
0
}
val task = args.args.lift( taskIndex )
val context: Context = ContextImplementation(
args.cwd,
args.cwd,
args.args.drop( taskIndex +1 ).toArray,
logger.enabledLoggers.toArray,
logger.start,
args.cbtHasChanged,
null,
args.persistentCache,
new java.util.concurrent.ConcurrentHashMap,
args.cache,
args.cbtHome,
args.cbtHome,
args.compatibilityTarget,
null
)
val first = lib.loadRoot( context )
val build = first.finalBuild
def call(build: BuildInterface): ExitCode = {
if(cross){
build.crossScalaVersions.map{
v => new lib.ReflectBuild(
build.copy(context.copy(scalaVersion = Some(v)))
).callNullary(task)
}.filter(_ != ExitCode.Success).headOption getOrElse ExitCode.Success
} else {
new lib.ReflectBuild(build).callNullary(task)
}
}
val res =
if (loop) {
// TODO: this should allow looping over task specific files, like test files as well
val triggerFiles = first.triggerLoopFiles.map(lib.realpath)
val triggerCbtFiles = Seq( nailgun, stage1, stage2 ).map(lib.realpath _)
val allTriggerFiles = triggerFiles ++ triggerCbtFiles
logger.loop("Looping change detection over:\n - "++allTriggerFiles.mkString("\n - "))
lib.watch(allTriggerFiles){
case file if triggerCbtFiles.exists(file.toString startsWith _.toString) =>
logger.loop("Change is in CBT's own source code.")
logger.loop("Restarting CBT.")
scala.util.control.Breaks.break
case file if triggerFiles.exists(file.toString startsWith _.toString) =>
val build = lib.loadRoot(context).finalBuild
logger.loop(s"Re-running $task for " ++ build.show)
call(build)
}
} else {
val code = call(build)
logger.stage2(s"Stage2 end")
System.exit(code.integer)
}
}
}