chore: add scala3-sbt-bridge-nonbootstrapped to the new build

Author: hamzaremmal

.github/workflows/stdlib.yaml

@@ -113,3 +113,20 @@ jobs:
       - uses: sbt/setup-sbt@v1
       - name: Compile `scala3-compiler-nonbootstrapped`
         run: ./project/scripts/sbt scala3-compiler-nonbootstrapped/compile
+
+  scala3-sbt-bridge-nonbootstrapped:
+    runs-on: ubuntu-latest
+    ##needs: [scala3-compiler-nonbootstrapped] Add when we add support for caching here
+    steps:
+      - name: Git Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up JDK 17
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin'
+          java-version: 17
+          cache: 'sbt'
+      - uses: sbt/setup-sbt@v1
+      - name: Compile `scala3-sbt-bridge-nonbootstrapped`
+        run: ./project/scripts/sbt scala3-sbt-bridge-nonbootstrapped/compile

build.sbt

@@ -13,6 +13,7 @@ val `scala3-library` = Build.`scala3-library`
 val `scala3-library-bootstrapped` = Build.`scala3-library-bootstrapped`
 val `scala3-library-bootstrappedJS` = Build.`scala3-library-bootstrappedJS`
 val `scala3-sbt-bridge` = Build.`scala3-sbt-bridge`
+val `scala3-sbt-bridge-nonbootstrapped` = Build.`scala3-sbt-bridge-nonbootstrapped`
 val `scala3-sbt-bridge-tests` = Build.`scala3-sbt-bridge-tests`
 val `scala3-staging` = Build.`scala3-staging`
 val `scala3-tasty-inspector` = Build.`scala3-tasty-inspector`

project/Build.scala

@@ -1369,7 +1369,7 @@ object Build {
 
   lazy val `scala3-nonbootstrapped` = project
     .aggregate(`scala3-interfaces`, `scala3-library-nonbootstrapped` , `scala-library-nonbootstrapped`,
-      `tasty-core-nonbootstrapped`, `scala3-compiler-nonbootstrapped`)
+      `tasty-core-nonbootstrapped`, `scala3-compiler-nonbootstrapped`, `scala3-sbt-bridge-nonbootstrapped`)
     .settings(
       name          := "scala3-nonbootstrapped",
       moduleName    := "scala3-nonbootstrapped",
@@ -1383,6 +1383,53 @@ object Build {
       target := target.value / "scala3-nonbootstrapped",
     )
 
+  /* Configuration of the org.scala-lang:scala3-sbt-bridge:*.**.**-nonbootstrapped project */
+  lazy val `scala3-sbt-bridge-nonbootstrapped` = project.in(file("sbt-bridge"))
+    .dependsOn(`scala3-compiler-nonbootstrapped`) // TODO: Would this actually evict the reference compiler in scala-tool?
+    .settings(
+      name          := "scala3-sbt-bridge-nonbootstrapped",
+      moduleName    := "scala3-sbt-bridge",
+      version       := dottyNonBootstrappedVersion,
+      versionScheme := Some("semver-spec"),
+      scalaVersion  := referenceVersion, // nonbootstrapped artifacts are compiled with the reference compiler (already officially published)
+      crossPaths    := false, // org.scala-lang:scala3-sbt-bridge doesn't have a crosspath
+      autoScalaLibrary := false, // do not add a dependency to stdlib, we depend transitively on the stdlib from `scala3-compiler-nonbootstrapped`
+      // Add the source directories for the stdlib (non-boostrapped)
+      Compile / unmanagedSourceDirectories := Seq(baseDirectory.value / "src"),
+      // NOTE: The only difference here is that we drop `-Werror` and semanticDB for now
+      Compile / scalacOptions := Seq("-deprecation", "-feature", "-unchecked", "-encoding", "UTF8", "-language:implicitConversions"),
+      // Make sure that the produced artifacts have the minimum JVM version in the bytecode
+      Compile / javacOptions  ++= Seq("--target", Versions.minimumJVMVersion),
+      Compile / scalacOptions ++= Seq("--java-output-version", Versions.minimumJVMVersion),
+      // Packaging configuration of the stdlib
+      Compile / packageBin / publishArtifact := true,
+      Compile / packageDoc / publishArtifact := false,
+      Compile / packageSrc / publishArtifact := true,
+      // Only publish compilation artifacts, no test artifacts
+      Test    / publishArtifact := false,
+      // non-bootstrapped stdlib is publishable (only locally)
+      publish / skip := false,
+      // Project specific target folder. sbt doesn't like having two projects using the same target folder
+      target := target.value / "scala3-sbt-bridge-nonbootstrapped",
+      // sbt adds all the projects to scala-tool config which breaks building the scalaInstance
+      // as a workaround, I build it manually by only adding the compiler
+      scalaInstance := {
+        val lm = dependencyResolution.value
+        val log = streams.value.log
+        val retrieveDir = streams.value.cacheDirectory / "scala3-compiler" / scalaVersion.value
+        val comp = lm.retrieve("org.scala-lang" % "scala3-compiler_3" %
+          scalaVersion.value, scalaModuleInfo = None, retrieveDir, log)
+          .fold(w => throw w.resolveException, identity)
+        Defaults.makeScalaInstance(
+          scalaVersion.value,
+          Array.empty,
+          comp.toSeq,
+          Seq.empty,
+          state.value,
+          scalaInstanceTopLoader.value,
+        )},
+    )
+
   // ==============================================================================================
   // =================================== SCALA STANDARD LIBRARY ===================================
   // ==============================================================================================