workaround. set custom routesGenerator

build.sbt

@@ -13,3 +13,31 @@ remoteCacheId := "fixed-id"
 remoteCacheIdCandidates := Seq(remoteCacheId.value)
 
 pushRemoteCacheConfiguration := pushRemoteCacheConfiguration.value.withOverwrite(true)
+
+routesGenerator := {
+  import play.routes.compiler.{RoutesCompiler, RoutesGenerator, Rule}
+  val base = InjectedRoutesGenerator
+  new RoutesGenerator {
+    override def generate(
+      task: RoutesCompiler.RoutesCompilerTask,
+      namespace: Option[String],
+      rules: List[Rule]
+    ): Seq[(String, String)] = {
+      val baseDir = (ThisBuild / baseDirectory).value.getCanonicalPath + "/"
+      val sourceCommentPrefix = s"// @SOURCE:${baseDir}"
+      base.generate(task = task, namespace = namespace, rules = rules).map {
+        case (fileName, src) =>
+          fileName -> src.linesIterator
+            .filterNot(_ contains "@DATE")
+            .map {
+              case line if line.startsWith(sourceCommentPrefix) =>
+                line.replace(baseDir, "")
+              case line =>
+                line
+            }
+            .mkString("\n")
+      }
+    }
+    override def id = base.id
+  }
+}