blob: 80325f1e4550e3ecee063b0b6143aea4a7bb09b4 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
package mill.scalanativelib
import java.io.File
import java.net.URLClassLoader
import mill.define.{Discover, Worker}
import mill.{Agg, T}
import mill.scalanativelib.api._
class ScalaNativeWorker {
private var scalaInstanceCache = Option.empty[(Long, ScalaNativeWorkerApi)]
def impl(toolsClasspath: Agg[os.Path]): ScalaNativeWorkerApi = {
val classloaderSig = toolsClasspath.map(p => p.toString().hashCode + os.mtime(p)).sum
scalaInstanceCache match {
case Some((sig, bridge)) if sig == classloaderSig => bridge
case _ =>
val cl = new URLClassLoader(
toolsClasspath.map(_.toIO.toURI.toURL).toArray,
getClass.getClassLoader
)
try {
val bridge = cl
.loadClass("mill.scalanativelib.worker.ScalaNativeWorkerImpl")
.getDeclaredConstructor()
.newInstance()
.asInstanceOf[ScalaNativeWorkerApi]
scalaInstanceCache = Some((classloaderSig, bridge))
bridge
}
catch {
case e: Exception =>
e.printStackTrace()
throw e
}
}
}
}
object ScalaNativeWorkerApi extends mill.define.ExternalModule {
def scalaNativeWorker: Worker[ScalaNativeWorker] = T.worker { new ScalaNativeWorker() }
lazy val millDiscover = Discover[this.type]
}
|