From 57501fca3b6c2c64d32744e6d534b9de3a6674f6 Mon Sep 17 00:00:00 2001
From: Li Haoyi <haoyi.sg@gmail.com>
Date: Sat, 13 Jan 2018 13:00:21 -0800
Subject: Migrate most classpath-related code onto `Loose.OSet` abstraction, to
 enforce deduplication

---
 scalajslib/src/main/scala/mill/scalajslib/Lib.scala     |  8 ++++----
 .../src/main/scala/mill/scalajslib/ScalaJSModule.scala  | 17 ++++++++++++-----
 2 files changed, 16 insertions(+), 9 deletions(-)

(limited to 'scalajslib/src')

diff --git a/scalajslib/src/main/scala/mill/scalajslib/Lib.scala b/scalajslib/src/main/scala/mill/scalajslib/Lib.scala
index 3de37962..744bb262 100644
--- a/scalajslib/src/main/scala/mill/scalajslib/Lib.scala
+++ b/scalajslib/src/main/scala/mill/scalajslib/Lib.scala
@@ -7,7 +7,7 @@ import java.net.URLClassLoader
 import ammonite.ops.{Path, mkdir, rm, _}
 import mill.eval.PathRef
 import mill.scalalib.Dep
-import mill.util.Ctx
+import mill.util.{Ctx, Loose}
 
 import scala.collection.breakOut
 import scala.language.reflectiveCalls
@@ -21,7 +21,7 @@ object Lib {
   def scalaJSLinkerIvyDep(scalaJSVersion: String): Dep =
     Dep("com.lihaoyi", s"mill-jsbridge_${scalaJSVersion.replace('.', '_')}", "0.1-SNAPSHOT")
 
-  def scalaJSLinkerBridge(classPath: Seq[Path]): ScalaJSLinkerBridge = {
+  def scalaJSLinkerBridge(classPath: Loose.OSet[Path]): ScalaJSLinkerBridge = {
     val classloaderSig = classPath.map(p => p.toString().hashCode + p.mtime.toMillis).sum
     LinkerBridge.scalaInstanceCache match {
       case Some((`classloaderSig`, linker)) => linker
@@ -44,7 +44,7 @@ object Lib {
 
   def link(main: Option[String],
            inputPaths: Seq[Path],
-           libraries: Seq[Path],
+           libraries: Loose.OSet[Path],
            linker: ScalaJSLinkerBridge,
            mode: OptimizeMode)
           (implicit ctx: Ctx.DestCtx): PathRef = {
@@ -53,7 +53,7 @@ object Lib {
     if (inputPaths.nonEmpty) {
       mkdir(outputPath / up)
       val inputFiles: Vector[File] = inputPaths.map(ls).flatMap(_.filter(_.ext == "sjsir")).map(_.toIO)(breakOut)
-      val inputLibraries: Vector[File] = libraries.filter(_.ext == "jar").map(_.toIO)(breakOut)
+      val inputLibraries: Vector[File] = libraries.filter(_.ext == "jar").map(_.toIO).toVector
       linker.link(inputFiles, inputLibraries, outputPath.toIO, main, mode)
     }
     PathRef(outputPath)
diff --git a/scalajslib/src/main/scala/mill/scalajslib/ScalaJSModule.scala b/scalajslib/src/main/scala/mill/scalajslib/ScalaJSModule.scala
index ed0a2c85..03c4e216 100644
--- a/scalajslib/src/main/scala/mill/scalajslib/ScalaJSModule.scala
+++ b/scalajslib/src/main/scala/mill/scalajslib/ScalaJSModule.scala
@@ -7,7 +7,8 @@ import ammonite.ops.Path
 import mill.eval.Result.Success
 import mill.scalajslib.Lib._
 import mill.scalalib.Lib.resolveDependencies
-import mill.scalalib.{Dep, PublishModule, Module, TestModule}
+import mill.scalalib.{Dep, Module, PublishModule, TestModule}
+import mill.util.Loose
 
 trait ScalaJSModule extends scalalib.Module { outer =>
 
@@ -26,10 +27,16 @@ trait ScalaJSModule extends scalalib.Module { outer =>
 
   def scalaJSBridgeVersion = T{ scalaJSVersion().split('.').dropRight(1).mkString(".") }
 
-  def scalaJSLinkerClasspath: T[Seq[PathRef]] = T{
+  def scalaJSLinkerClasspath: T[Loose.OSet[PathRef]] = T{
     val jsBridgeKey = "MILL_SCALAJS_BRIDGE_" + scalaJSBridgeVersion().replace('.', '_')
     val jsBridgePath = sys.props(jsBridgeKey)
-    if (jsBridgePath != null) Success(jsBridgePath.split(File.pathSeparator).map(f => PathRef(Path(f), quick = true)).toVector)
+    if (jsBridgePath != null) {
+      Success(
+        Loose.OSet.from(
+          jsBridgePath.split(File.pathSeparator).map(f => PathRef(Path(f), quick = true))
+        )
+      )
+    }
     else {
       val dep = scalaJSLinkerIvyDep(scalaJSBridgeVersion())
       resolveDependencies(
@@ -51,9 +58,9 @@ trait ScalaJSModule extends scalalib.Module { outer =>
     link(mainClass(), Seq(compile().classes.path), compileDepClasspath().map(_.path), linker, FullOpt)
   }
 
-  override def scalacPluginIvyDeps = T{ Seq(Dep.Point("org.scala-js", "scalajs-compiler", scalaJSVersion())) }
+  override def scalacPluginIvyDeps = T{ Loose.OSet(Dep.Point("org.scala-js", "scalajs-compiler", scalaJSVersion())) }
 
-  override def ivyDeps = T{ Seq(Dep("org.scala-js", "scalajs-library", scalaJSVersion())) }
+  override def ivyDeps = T{ Loose.OSet(Dep("org.scala-js", "scalajs-library", scalaJSVersion())) }
 
   // publish artifact with name "mill_sjs0.6.4_2.12" instead of "mill_sjs0.6_2.12"
   def crossFullScalaJSVersion: T[Boolean] = false
-- 
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