chore: enable MiMa in scala-library-nonbootstrapped and scala-library-bootstrapped

Author: hamzaremmal

project/Build.scala

@@ -134,7 +134,7 @@ object Build {
    *   - `3.M.0`     if `P > 0`
    *   - `3.(M-1).0` if `P = 0`
    */
-  val mimaPreviousDottyVersion = "3.7.0"
+  val mimaPreviousDottyVersion = "3.7.3" // for 3.8.0, we compare against 3.7.3
 
   /** LTS version against which we check binary compatibility.
    *
@@ -304,6 +304,7 @@ object Build {
     Test / develocityBuildCacheClient := None,
     extraDevelocityCacheInputFiles := Seq.empty,
     extraDevelocityCacheInputFiles / outputFileStamper := FileStamper.Hash,
+    resolvers += ("Artifactory" at "https://repo.scala-lang.org/artifactory/fat-jar/"),
   )
 
   // Settings shared globally (scoped in Global). Used in build.sbt
@@ -1636,6 +1637,16 @@ object Build {
       publish / skip := false,
       // Project specific target folder. sbt doesn't like having two projects using the same target folder
       target := target.value / "scala-library-nonbootstrapped",
+      // Add configuration for MiMa
+      mimaCheckDirection := (compatMode match {
+        case CompatMode.BinaryCompatible          => "backward"
+        case CompatMode.SourceAndBinaryCompatible => "both"
+      }),
+      mimaExcludeAnnotations += "scala.annotation.experimental",
+      mimaPreviousArtifacts += ("org.scala-lang" % "fat-stdlib" % "3.7.3"),
+      mimaForwardIssueFilters := MiMaFilters.Scala3Library.ForwardsBreakingChanges,
+      mimaBackwardIssueFilters := MiMaFilters.Scala3Library.BackwardsBreakingChanges,
+      customMimaReportBinaryIssues("MiMaFilters.Scala3Library"),
     )
 
   /* Configuration of the org.scala-lang:scala3-library_3:*.**.**-nonbootstrapped project */
@@ -1748,6 +1759,16 @@ object Build {
       scalaCompilerBridgeBinaryJar := {
         Some((`scala3-sbt-bridge-nonbootstrapped` / Compile / packageBin).value)
       },
+      // Add configuration for MiMa
+      mimaCheckDirection := (compatMode match {
+        case CompatMode.BinaryCompatible          => "backward"
+        case CompatMode.SourceAndBinaryCompatible => "both"
+      }),
+      mimaExcludeAnnotations += "scala.annotation.experimental",
+      mimaPreviousArtifacts += ("org.scala-lang" % "fat-stdlib" % "3.7.3"),
+      mimaForwardIssueFilters := MiMaFilters.Scala3Library.ForwardsBreakingChanges,
+      mimaBackwardIssueFilters := MiMaFilters.Scala3Library.BackwardsBreakingChanges,
+      customMimaReportBinaryIssues("MiMaFilters.Scala3Library"),
     )
 
   /* Configuration of the org.scala-lang:scala3-library_3:*.**.**-bootstrapped project */