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package mill.playlib
import ammonite.ops.Path
import mill._
import mill.api.{Ctx, Result}
import mill.define.{Discover, ExternalModule, Worker}
import mill.playlib.api.RouteCompilerType
import mill.scalalib.api.CompilationResult
class RouteCompilerWorker {
private var routeCompilerInstanceCache = Option.empty[(Long, mill.playlib.api.RouteCompilerWorkerApi)]
private def bridge(toolsClasspath: Agg[os.Path])
(implicit ctx: Ctx) = {
val classloaderSig =
toolsClasspath.map(p => p.toString().hashCode + os.mtime(p)).sum
routeCompilerInstanceCache match {
case Some((sig, bridge)) if sig == classloaderSig => bridge
case _ =>
val toolsClassPath = toolsClasspath.map(_.toIO.toURI.toURL).toVector
ctx.log.debug("Loading classes from\n"+toolsClassPath.mkString("\n"))
val cl = mill.api.ClassLoader.create(
toolsClassPath,
getClass.getClassLoader
)
val bridge = cl
.loadClass("mill.playlib.worker.RouteCompilerWorker")
.getDeclaredConstructor()
.newInstance()
.asInstanceOf[mill.playlib.api.RouteCompilerWorkerApi]
routeCompilerInstanceCache = Some((classloaderSig, bridge))
bridge
}
}
def compile(routerClasspath: Agg[Path],
files: Seq[Path],
additionalImports: Seq[String],
forwardsRouter: Boolean,
reverseRouter: Boolean,
namespaceReverseRouter: Boolean,
generatorType: RouteCompilerType,
dest: Path)(implicit ctx: Ctx)
: Result[CompilationResult] = {
//the routes file must come last as it can include the routers generated
//by the others
bridge(routerClasspath)
.compile(
files,
additionalImports,
forwardsRouter,
reverseRouter,
namespaceReverseRouter,
generatorType,
dest
)(ctx)
}
}
object RouteCompilerWorkerModule extends ExternalModule {
def routeCompilerWorker: Worker[RouteCompilerWorker] = T.worker {
new RouteCompilerWorker()
}
lazy val millDiscover = Discover[this.type]
}
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