Cross build to sbt 2.x

Author: eed3si9n

.github/workflows/ci.yml

@@ -12,18 +12,26 @@ jobs:
       fail-fast: false
       matrix:
         include:
+          - os: ubuntu-latest
+            java: 8
+            distribution: zulu
+            jobtype: 1
           - os: ubuntu-latest
             java: 8
             distribution: temurin
+            jobtype: 2
           - os: ubuntu-latest
             java: 21
             distribution: temurin
+            jobtype: 1
           - os: ubuntu-latest
             java: 24-ea
             distribution: temurin
+            jobtype: 1
           - os: windows-latest
             java: 11
             distribution: temurin
+            jobtype: 1
     env:
       # define Java options for both official sbt and sbt-extras
       JAVA_OPTS: -Xms2048M -Xmx2048M -Xss6M -XX:ReservedCodeCacheSize=256M -Dfile.encoding=UTF-8
@@ -36,7 +44,13 @@ jobs:
         distribution: "${{ matrix.distribution }}"
         java-version: "${{ matrix.java }}"
         cache: sbt
-    - name: Build and test
+    - name: Build and test (sbt 1.x)
+      if: ${{ matrix.jobtype == 1 }}
+      shell: bash
+      run: |
+        sbt -v ++2.12.x scripted
+    - name: Build and test (sbt 2.x)
+      if: ${{ matrix.jobtype == 2 }}
       shell: bash
       run: |
-        sbt -v clean scripted
+        sbt -v ++3.x scripted

.gitignore

@@ -6,4 +6,5 @@ project/plugins/lib_managed
 project/plugins/src_managed
 project/plugins/target
 project/plugins/project/build.properties
-.idea
+.idea
+metals.sbt

build.sbt

@@ -6,30 +6,42 @@ ThisBuild / version := {
 
 ThisBuild / organization := "com.eed3si9n"
 
-def scala212 = "2.12.18"
-ThisBuild / crossScalaVersions := Seq(scala212)
-ThisBuild / scalaVersion := scala212
+def scala212 = "2.12.20"
+def scala3 = "3.3.4"
+ThisBuild / crossScalaVersions := Seq(scala212, scala3)
+ThisBuild / scalaVersion := scala3
 
 lazy val jarjar = "com.eed3si9n.jarjarabrams" %% "jarjar-abrams-core" % "1.14.0"
 
 lazy val root = (project in file("."))
-  .enablePlugins(SbtPlugin, ContrabandPlugin, SbtPlugin)
-  .settings(pomConsistency2021DraftSettings)
+  .enablePlugins(SbtPlugin, ContrabandPlugin)
   .settings(nocomma {
     name := "sbt-assembly"
-    scalacOptions := Seq("-deprecation", "-unchecked", "-Dscalac.patmat.analysisBudget=1024", "-Xfuture")
-    libraryDependencies += jarjar
+    scalacOptions := Seq(
+      "-Xsource:3",
+      "-deprecation",
+      "-unchecked",
+      "-Dscalac.patmat.analysisBudget=1024",
+      "-Xfuture",
+    )
+    libraryDependencies += jarjar.cross(CrossVersion.for3Use2_13)
     (pluginCrossBuild / sbtVersion) := {
       scalaBinaryVersion.value match {
-        case "2.12" => "1.2.8"
+        case "2.12" => "1.5.8"
+        case _      => "2.0.0-M2"
+      }
+    }
+    scriptedSbt := {
+      scalaBinaryVersion.value match {
+        case "2.12" => "1.10.2"
+        case _      => "2.0.0-M2"
       }
     }
     Compile / generateContrabands / sourceManaged := baseDirectory.value / "src" / "main" / "scala"
     scriptedLaunchOpts := { scriptedLaunchOpts.value ++
       Seq("-Xmx1024M", "-Dplugin.version=" + version.value)
     }
     scriptedBufferLog := false
-    scriptedSbt := "1.9.7"
   })
 
 ThisBuild / scmInfo := Some(
@@ -56,30 +68,3 @@ ThisBuild / publishTo := {
   else Some("releases" at nexus + "service/local/staging/deploy/maven2")
 }
 ThisBuild / publishMavenStyle := true
-
-// See https://eed3si9n.com/pom-consistency-for-sbt-plugins
-lazy val pomConsistency2021Draft = settingKey[Boolean]("experimental")
-
-/**
- * this is an unofficial experiment to re-publish plugins with better Maven compatibility
- */
-def pomConsistency2021DraftSettings: Seq[Setting[_]] = Seq(
-  pomConsistency2021Draft := Set("true", "1")(sys.env.get("POM_CONSISTENCY").getOrElse("false")),
-  moduleName := {
-    if (pomConsistency2021Draft.value)
-      sbtPluginModuleName2021Draft(moduleName.value,
-        (pluginCrossBuild / sbtBinaryVersion).value)
-    else moduleName.value
-  },
-  projectID := {
-    if (pomConsistency2021Draft.value) sbtPluginExtra2021Draft(projectID.value)
-    else projectID.value
-  },
-)
-
-def sbtPluginModuleName2021Draft(n: String, sbtV: String): String =
-  s"""${n}_sbt${if (sbtV == "1.0") "1" else if (sbtV == "2.0") "2" else sbtV}"""
-
-def sbtPluginExtra2021Draft(m: ModuleID): ModuleID =
-  m.withExtraAttributes(Map.empty)
-   .withCrossVersion(CrossVersion.binary)

project/build.properties

@@ -1 +1 @@
-sbt.version=1.9.9
+sbt.version=1.10.2

src/main/scala-2.12/PluginCompat.scala

@@ -0,0 +1,87 @@
+package sbtassembly
+
+import java.nio.file.{ Path => NioPath }
+import java.util.jar.{ Manifest => JManifest }
+import sbt.*
+import sbt.internal.util.HNil
+import sbt.internal.util.Types.:+:
+import sbt.util.FileInfo.lastModified
+import sbt.util.Tracked.{ inputChanged, lastOutput }
+import xsbti.FileConverter
+
+private[sbtassembly] object PluginCompat {
+  type Out = java.io.File
+  type MainClass = sbt.Package.MainClass
+
+  object CollectionConverters
+
+  val moduleIDStr = Keys.moduleID.key
+  def parseModuleIDStrAttribute(m: ModuleID): ModuleID = m
+
+  def toNioPath(a: Attributed[File])(implicit conv: FileConverter): NioPath =
+    a.data.toPath()
+  def toFile(a: Attributed[File])(implicit conv: FileConverter): File =
+    a.data
+  def toOutput(x: File)(implicit conv: FileConverter): File =
+    x
+  def toNioPaths(cp: Seq[Attributed[File]])(implicit conv: FileConverter): Vector[NioPath] =
+    cp.map(_.data.toPath()).toVector
+  def toFiles(cp: Seq[Attributed[File]])(implicit conv: FileConverter): Vector[File] =
+    cp.map(_.data).toVector
+
+  type CacheKey = FilesInfo[ModifiedFileInfo] :+:
+    Map[String, (Boolean, String)] :+: // map of target paths that matched a merge strategy
+    JManifest :+:
+    // Assembly options...
+    Boolean :+:
+    Option[Seq[String]] :+:
+    Option[Int] :+:
+    Boolean :+:
+    HNil
+
+  val HListFormats = sbt.internal.util.HListFormats
+  val Streamable = scala.tools.nsc.io.Streamable
+
+  private[sbtassembly] def makeCacheKey(
+    classes: Vector[NioPath],
+    filteredJars: Vector[Attributed[File]],
+    mergeStrategiesByPathList: Map[String, (Boolean, String)],
+    jarManifest: JManifest,
+    ao: AssemblyOption,
+  ): CacheKey =
+    lastModified(classes.map(_.toFile()).toSet ++ filteredJars.map(_.data).toSet) :+:
+      mergeStrategiesByPathList :+:
+      jarManifest :+:
+      ao.repeatableBuild :+:
+      ao.prependShellScript :+:
+      ao.maxHashLength :+:
+      ao.appendContentHash :+:
+      HNil
+
+  // sbt 1.x style disk cache
+  private[sbtassembly] def cachedAssembly(inputs: CacheKey, cacheDir: File, scalaVersion: String, log: Logger)(
+      buildAssembly: () => File
+  ): File = {
+    import CacheImplicits._
+    import sbt.internal.util.HListFormats._
+    import sbt.Package.manifestFormat
+    val cacheBlock = inputChanged(cacheDir / s"assembly-cacheKey-$scalaVersion") { (inputChanged, _: CacheKey) =>
+      lastOutput(cacheDir / s"assembly-outputs-$scalaVersion") { (_: Unit, previousOutput: Option[File]) =>
+        val outputExists = previousOutput.exists(_.exists())
+        (inputChanged, outputExists) match {
+          case (false, true) =>
+            log.info("Assembly jar up to date: " + previousOutput.get.toPath)
+            previousOutput.get
+          case (true, true) =>
+            log.debug("Building assembly jar due to changed inputs...")
+            IO.delete(previousOutput.get)
+            buildAssembly()
+          case (_, _) =>
+            log.debug("Building assembly jar due to missing output...")
+            buildAssembly()
+        }
+      }
+    }
+    cacheBlock(inputs)(Unit)
+  }
+}

src/main/scala-3/PluginCompat.scala

@@ -0,0 +1,65 @@
+package sbtassembly
+
+import java.io.File
+import java.nio.file.{ Path => NioPath }
+import java.util.jar.{ Manifest => JManifest }
+import sbt.*
+import sbt.librarymanagement.ModuleID
+import xsbti.{ FileConverter, HashedVirtualFileRef }
+
+object PluginCompat:
+  type Out = HashedVirtualFileRef
+  type JarManifest = PackageOption.JarManifest
+  type MainClass = PackageOption.MainClass
+  type ManifestAttributes = PackageOption.ManifestAttributes
+  type FixedTimestamp = PackageOption.FixedTimestamp
+
+  val CollectionConverters = scala.collection.parallel.CollectionConverters
+
+  val moduleIDStr = Keys.moduleIDStr
+  def parseModuleIDStrAttribute(str: String): ModuleID =
+    Classpaths.moduleIdJsonKeyFormat.read(str)
+
+  def toNioPath(a: Attributed[HashedVirtualFileRef])(implicit conv: FileConverter): NioPath =
+    conv.toPath(a.data)
+  inline def toFile(a: Attributed[HashedVirtualFileRef])(implicit conv: FileConverter): File =
+    toNioPath(a).toFile()
+  def toOutput(x: File)(implicit conv: FileConverter): HashedVirtualFileRef =
+    conv.toVirtualFile(x.toPath())
+  def toNioPaths(cp: Seq[Attributed[HashedVirtualFileRef]])(implicit conv: FileConverter): Vector[NioPath] =
+    cp.map(toNioPath).toVector
+  inline def toFiles(cp: Seq[Attributed[HashedVirtualFileRef]])(implicit conv: FileConverter): Vector[File] =
+    toNioPaths(cp).map(_.toFile())
+
+  object HListFormats
+  val Streamable = scala.reflect.io.Streamable
+
+  extension [A1](init: Def.Initialize[Task[A1]])
+    def ? : Def.Initialize[Task[Option[A1]]] = Def.optional(init) {
+      case None    => sbt.std.TaskExtra.task { None }
+      case Some(t) => t.map(Some.apply)
+    }
+
+    def or[A2 >: A1](i: Def.Initialize[Task[A2]]): Def.Initialize[Task[A2]] =
+      init.?.zipWith(i) { (toa1: Task[Option[A1]], ta2: Task[A2]) =>
+        (toa1, ta2).mapN {
+          case (oa1: Option[A1], a2: A2) => oa1.getOrElse(a2)
+        }
+      }
+
+  val inTask = Project.inTask
+
+  type CacheKey = Int
+  private[sbtassembly] def makeCacheKey(
+    classes: Vector[NioPath],
+    filteredJars: Vector[Attributed[HashedVirtualFileRef]],
+    mergeStrategiesByPathList: Map[String, (Boolean, String)],
+    jarManifest: JManifest,
+    ao: AssemblyOption,
+  ): CacheKey = 0
+
+  private[sbtassembly] def cachedAssembly(inputs: CacheKey, cacheDir: File, scalaVersion: String, log: Logger)(
+      buildAssembly: () => PluginCompat.Out
+  ): PluginCompat.Out =
+    buildAssembly()
+end PluginCompat