Fixes playframework#208 - Support sbt 1.4.x+

sbt 1.4.x introduces a breaking changes to how plugins can hook
into the compiler as well as some API changes for stamping files
so that the incremental compiler can recognize modifications

This pull requests updates sbt-play-ebean to account for those
changes with respect to ebean enhancement.

build.sbt

@@ -4,7 +4,7 @@ import sbt.Append.appendSeq
 import xsbti.compile.CompileAnalysis
 
 // Customise sbt-dynver's behaviour to make it work with tags which aren't v-prefixed
-dynverVTagPrefix in ThisBuild := false
+ThisBuild / dynverVTagPrefix := false
 
 // Sanity-check: assert that version comes from a tag (e.g. not a too-shallow clone)
 // https://github.com/dwijnand/sbt-dynver/#sanity-checking-the-version
@@ -42,10 +42,10 @@ lazy val core = project
     crossScalaVersions := Seq(scala212, scala213),
     Dependencies.ebean,
     mimaSettings,
-    compile in Compile := enhanceEbeanClasses(
-      (dependencyClasspath in Compile).value,
-      (compile in Compile).value,
-      (classDirectory in Compile).value,
+    Compile / compile := enhanceEbeanClasses(
+      (Compile / dependencyClasspath).value,
+      (Compile / compile).value,
+      (Compile / classDirectory).value,
       "play/db/ebean/**"
     ),
     jacocoReportSettings := JacocoReportSettings("Jacoco Coverage Report", None, JacocoThresholds(), Seq(JacocoReportFormats.XML), "utf-8")
@@ -61,10 +61,10 @@ lazy val plugin = project
     Dependencies.plugin,
     addSbtPlugin("com.typesafe.play" % "sbt-plugin" % Versions.play),
     crossScalaVersions := Seq(scala212),
-    resourceGenerators in Compile += generateVersionFile.taskValue,
+    Compile / resourceGenerators += generateVersionFile.taskValue,
     scriptedLaunchOpts ++= Seq(
       s"-Dscala.version=${scalaVersion.value}",
-      s"-Dscala.crossVersions=${(crossScalaVersions in core).value.mkString(",")}",
+      s"-Dscala.crossVersions=${(core / crossScalaVersions).value.mkString(",")}",
       s"-Dproject.version=${version.value}",
     ),
     scriptedBufferLog := false,
@@ -90,8 +90,8 @@ def enhanceEbeanClasses(classpath: Classpath, analysis: CompileAnalysis, classDi
 
 // Version file
 def generateVersionFile = Def.task {
-  val version = (Keys.version in core).value
-  val file = (resourceManaged in Compile).value / "play-ebean.version.properties"
+  val version = (core / Keys.version).value
+  val file = (Compile / resourceManaged).value / "play-ebean.version.properties"
   val content = s"play-ebean.version=$version"
   IO.write(file, content)
   Seq(file)

project/build.properties

@@ -2,4 +2,4 @@
 # Copyright (C) Lightbend Inc. <https://www.lightbend.com>
 #
 
-sbt.version=1.3.10
+sbt.version=1.4.9

sbt-play-ebean/src/main/scala-sbt-1.0/play/ebean/sbt/PlayEbean.scala

@@ -4,9 +4,7 @@ import java.net.URLClassLoader
 import io.ebean.enhance.Transformer
 import io.ebean.enhance.ant.OfflineFileTransform
 import sbt.Keys._
-import sbt.internal.inc.Hash
-import sbt.internal.inc.LastModified
-import sbt.internal.inc.Stamper
+import sbt.internal.inc.{FarmHash, LastModified, PlainVirtualFileConverter, Stamper}
 import sbt.AutoPlugin
 import sbt.Compile
 import sbt.Def
@@ -17,7 +15,7 @@ import sbt.taskKey
 import xsbti.compile.CompileResult
 import xsbti.compile.analysis.Stamp
 import sbt._
-
+import xsbti.VirtualFileRef
 import scala.util.control.NonFatal
 
 object PlayEbean extends AutoPlugin {
@@ -67,7 +65,6 @@ object PlayEbean extends AutoPlugin {
       val result    = manipulateBytecode.value
       val agentArgs = playEbeanAgentArgs.value
       val analysis  = result.analysis.asInstanceOf[sbt.internal.inc.Analysis]
-
       val agentArgsString = agentArgs.map { case (key, value) => s"$key=$value" }.mkString(";")
 
       val originalContextClassLoader = Thread.currentThread.getContextClassLoader
@@ -95,16 +92,16 @@ object PlayEbean extends AutoPlugin {
       }
 
       val allProducts = analysis.relations.allProducts
-
+      val converter = new PlainVirtualFileConverter()
       /**
        * Updates stamp of product (class file) by preserving the type of a passed stamp.
        * This way any stamp incremental compiler chooses to use to mark class files will
        * be supported.
        */
-      def updateStampForClassFile(file: File, stamp: Stamp): Stamp =
+      def updateStampForClassFile(fileRef: VirtualFileRef, stamp: Stamp): Stamp =
         stamp match {
-          case _: LastModified => Stamper.forLastModified(file)
-          case _: Hash         => Stamper.forHash(file)
+          case _: LastModified => Stamper.forLastModifiedP(converter.toPath(fileRef))
+          case _: FarmHash     => Stamper.forFarmHashP(converter.toPath(fileRef))
         }
 
       // Since we may have modified some of the products of the incremental compiler, that is, the compiled template
@@ -118,6 +115,7 @@ object PlayEbean extends AutoPlugin {
               + s"product of incremental compiler: $classFile"
           )
         }
+
         stamps.markProduct(classFile, updateStampForClassFile(classFile, existingStamp))
       })