Small modules for and coursier cache (#66)

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Author: Quafadas

.github/workflows/ci.yml

@@ -27,6 +27,8 @@ jobs:
     runs-on: ${{ matrix.os }}
     timeout-minutes: 60
     steps:
+      - uses: taiki-e/install-action@just
+      - uses: coursier/cache-action@v8
       - uses: coursier/setup-action@main
         with:
           jvm: temurin@21
@@ -97,6 +99,7 @@ jobs:
           fetch-depth: 0
           fetch-tags: true
 
+      - uses: coursier/cache-action@v8
       - uses: coursier/setup-action@main
         with:
           jvm: temurin@21
@@ -130,6 +133,7 @@ jobs:
     needs: build
     runs-on: ubuntu-latest
     steps:
+      - uses: coursier/cache-action@v8
       - uses: coursier/setup-action@main
         with:
           jvm: temurin@21

plugin/integration/src/js.test.scala

@@ -79,12 +79,13 @@ object SiteJsTests extends TestSuite:
       }
     }
 
-    test("Import map populated from sub task") {
+    /** YAML friendly overrides
+      */
+    test("Import map and smallModulesFor populated from sub task") {
       object build extends TestRootModule with ScalaJsRefreshModule:
         override def scalaVersion: Simple[String] = "3.8.2"
-        override def moduleSplitStyle: Simple[ModuleSplitStyle] =
-          ModuleSplitStyle.SmallModulesFor("webapp")
 
+        override def smallModulesFor = Seq("webapp")
         override def mvnDeps = Seq(
           mvn"com.raquo::laminar::17.0.0"
         )
@@ -106,6 +107,10 @@ object SiteJsTests extends TestSuite:
               prefix == "@foo" && target == "https://cdn.skypack.dev/foo/"
             case _ => throw new java.lang.AssertionError(s"Unexpected import mapping type: $report")
           })
+
+          val Right(smallModulesResult) = eval(build.smallModulesFor).runtimeChecked
+          val smallModules = smallModulesResult.value
+          assert(smallModules.contains("webapp"))
       }
 
     }

plugin/src/refresh_plugin.scala

@@ -17,6 +17,7 @@ import mill.scalajslib.api.ModuleKind
 import mill.scalajslib.api.Report
 import mill.scalajslib.config.ScalaJSConfigModule
 import mill.scalajslib.api.ESModuleImportMapping
+import mill.scalajslib.api.ModuleSplitStyle
 implicit val ec: scala.concurrent.ExecutionContext = scala.concurrent.ExecutionContext.global
 
 /** Base Mill plugin trait for Scala.js applications served by sjsls during development.
@@ -74,6 +75,12 @@ trait ScalaJsRefreshModule extends ScalaJSConfigModule:
       .toSeq
   end scalaJSImportMap
 
+  def smallModulesFor = Task(Seq.empty[String])
+
+  override def moduleSplitStyle: Simple[ModuleSplitStyle] = Task {
+    ModuleSplitStyle.SmallModulesFor(smallModulesFor()*)
+  }
+
   /** DOM id of the root node your application will mount into. */
   def appRoot: String = "app"