cross-build to sbt 2.x

.github/workflows/ci.yml

@@ -14,7 +14,7 @@ jobs:
         with:
           jvm: temurin:8
       - run: rm -rf src/sbt-test/skip-sbt1.4
-      - run: sbt test scripted
+      - run: sbt +test +scripted
   jdk11:
     name: JDK11 tests
     runs-on: ubuntu-latest
@@ -24,7 +24,7 @@ jobs:
         with:
           jvm: temurin:11
       - run: rm -rf src/sbt-test/skip-sbt1.4
-      - run: sbt test scripted
+      - run: sbt +test +scripted
   jdk17:
     name: JDK17 tests
     runs-on: ubuntu-latest
@@ -35,7 +35,7 @@ jobs:
           jvm: temurin:17
       - run: rm -rf src/sbt-test/skip-java17+
       - run: rm -rf src/sbt-test/skip-sbt1.4
-      - run: sbt test scripted
+      - run: sbt +test +scripted
 
   jdk21:
     name: JDK21 tests
@@ -46,7 +46,7 @@ jobs:
         with:
           jvm: temurin:21
       - run: rm -rf src/sbt-test/skip-java17+
-      - run: sbt test scripted
+      - run: sbt +test +scripted
   windows:
     name: Windows tests
     runs-on: windows-latest
@@ -55,7 +55,7 @@ jobs:
       - uses: coursier/setup-action@v1
       - run: rm -r -fo src\sbt-test\skip-sbt1.4
       - run: rm -r -fo src\sbt-test\skip-windows
-      - run: sbt test-skip-windows scripted
+      - run: sbt +"testOnly -- -l SkipWindows" +scripted
         shell: bash
   checks:
     name: Scalafmt

.github/workflows/release.yml

@@ -9,6 +9,8 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: coursier/setup-action@v1
+        with:
+          jvm: temurin:8
       - uses: olafurpg/setup-gpg@v3
       - run: git fetch --unshallow
       - name: Publish ${{ github.ref }}

bin/test-release.sh

@@ -6,3 +6,7 @@ version=$1
 cs resolve \
     --sbt-version 1.0 \
     --sbt-plugin "ch.epfl.scala:sbt-scalafix:$version"
+
+cs resolve \
+    --sbt-version 2.0.0-M2 \
+    --sbt-plugin "ch.epfl.scala:sbt-scalafix:$version"

build.sbt

@@ -31,11 +31,6 @@ developers := List(
   )
 )
 
-commands += Command.command("test-skip-windows") { s =>
-  "testOnly -- -l SkipWindows" ::
-    s
-}
-
 // Dependencies
 resolvers ++= Resolver.sonatypeOssRepos("public")
 libraryDependencies ++= Dependencies.all
@@ -44,29 +39,59 @@ libraryDependencies ++= List(
   "org.scalatest" %% "scalatest" % "3.2.19" % Test
 )
 
-scalaVersion := "2.12.20"
+lazy val scala212 = "2.12.20"
+lazy val scala3 = "3.3.4"
+
+scalaVersion := scala212
+crossScalaVersions := Seq(scala212, scala3)
 
 // keep this as low as possible to avoid running into binary incompatibility such as https://github.com/sbt/sbt/issues/5049
-pluginCrossBuild / sbtVersion := "1.4.0"
+pluginCrossBuild / sbtVersion := {
+  scalaBinaryVersion.value match {
+    case "2.12" =>
+      "1.4.0"
+    case _ =>
+      "2.0.0-M2"
+  }
+}
 
 scriptedSbt := {
   val jdk = System.getProperty("java.specification.version").toDouble
 
   if (jdk >= 21)
-    "1.9.0" // first release that supports JDK21
+    Ordering[String].max(
+      (pluginCrossBuild / sbtVersion).value,
+      "1.9.0" // first release that supports JDK21
+    )
   else
     (pluginCrossBuild / sbtVersion).value
 }
 
-libraryDependencies += compilerPlugin(scalafixSemanticdb)
-
-scalacOptions ++= List("-Ywarn-unused", "-Yrangepos")
+libraryDependencies ++= {
+  scalaBinaryVersion.value match {
+    case "2.12" =>
+      List(compilerPlugin(scalafixSemanticdb))
+    case _ =>
+      Nil
+  }
+}
 
-scalacOptions ++= List(
-  "-target:jvm-1.8",
-  "-Xfatal-warnings",
-  "-Xlint"
-)
+scalacOptions ++= {
+  scalaBinaryVersion.value match {
+    case "2.12" =>
+      List(
+        "-Ywarn-unused",
+        "-Yrangepos",
+        "-Xfatal-warnings",
+        "-Xlint"
+      )
+    case _ =>
+      List(
+        "-Wunused:all",
+        "-Werror"
+      )
+  }
+}
 
 // Scripted
 enablePlugins(ScriptedPlugin)

src/main/scala/scalafix/internal/sbt/ScalafixInterface.scala

@@ -38,7 +38,7 @@ object Arg {
         .map(uri => java.nio.file.Paths.get(uri).toFile)
         .flatMap {
           case classDirectory if classDirectory.isDirectory =>
-            classDirectory.**(RegularFileFilter).get
+            classDirectory.**(RegularFileFilter).get()
           case jar =>
             Seq(jar)
         }
@@ -109,10 +109,10 @@ class ScalafixInterface private (
     scalafixArguments.run().toSeq
 
   def availableRules(): Seq[ScalafixRule] =
-    scalafixArguments.availableRules().asScala
+    scalafixArguments.availableRules().asScala.toSeq
 
   def rulesThatWillRun(): Seq[ScalafixRule] =
-    try scalafixArguments.rulesThatWillRun().asScala
+    try scalafixArguments.rulesThatWillRun().asScala.toSeq
     catch {
       case e: ScalafixException => throw new InvalidArgument(e.getMessage)
     }

src/main/scala/scalafix/internal/sbt/SemanticRuleValidator.scala

@@ -25,7 +25,7 @@ class SemanticRuleValidator(ifNotFound: SemanticdbNotFound) {
       invalidArguments.foreach { invalidArgument =>
         errors += invalidArgument.getMessage
       }
-      errors
+      errors.toSeq
     }
   }
 }

src/main/scala/scalafix/sbt/ScalafixEnable.scala

@@ -155,21 +155,21 @@ object ScalafixEnable {
                 } else {
                   val latestAvailable =
                     tail.lastOption.getOrElse(earliestAvailable)
-                    Seq(
-                      semanticdbVersion := {
-                        val v = latestAvailable.toString
-                        sLog.value.info(
-                          s"Setting semanticdbVersion to $v in project " +
-                            s"${project.ref.project} since the version " +
-                            s"${recommendedSemanticdbV} tracked by scalafix " +
-                            s"${BuildInfo.scalafixVersion} is no longer " +
-                            s"published for scala " +
-                            s"${project.scalaVersion0.toString} - " +
-                            s"consider bumping scala"
-                        )
-                        v
-                      }
-                    )
+                  Seq(
+                    semanticdbVersion := {
+                      val v = latestAvailable.toString
+                      sLog.value.info(
+                        s"Setting semanticdbVersion to $v in project " +
+                          s"${project.ref.project} since the version " +
+                          s"${recommendedSemanticdbV} tracked by scalafix " +
+                          s"${BuildInfo.scalafixVersion} is no longer " +
+                          s"published for scala " +
+                          s"${project.scalaVersion0.toString} - " +
+                          s"consider bumping scala"
+                      )
+                      v
+                    }
+                  )
                 }
             }
           } :+ (semanticdbEnabled := true)

src/main/scala/scalafix/sbt/ScalafixPlugin.scala

@@ -243,7 +243,7 @@ object ScalafixPlugin extends AutoPlugin {
       }
 
       update.result.value match {
-        case Value(v) => v
+        case Value(v: UpdateReport) => v
         case Inc(inc: Incomplete) =>
           Incomplete.allExceptions(inc).toList match {
             case (resolveException: ResolveException) :: Nil =>
@@ -264,7 +264,7 @@ object ScalafixPlugin extends AutoPlugin {
       }
     },
     ivyConfigurations += ScalafixConfig,
-    scalafixAll := scalafixAllInputTask.evaluated,
+    scalafixAll := scalafixAllInputTask().evaluated,
     (scalafixScalaBinaryVersion: @nowarn) :=
       scalaVersion.value.split('.').take(2).mkString(".")
   )
@@ -351,7 +351,7 @@ object ScalafixPlugin extends AutoPlugin {
     val invocationDepsExternal = parsed.map(_.dependency)
     val projectDepsInternal0 = projectDepsInternal.filter {
       case directory if directory.isDirectory =>
-        directory.**(AllPassFilter).get.exists(_.isFile)
+        directory.**(AllPassFilter).get().exists(_.isFile)
       case file if file.isFile => true
       case _ => false
     }
@@ -632,7 +632,7 @@ object ScalafixPlugin extends AutoPlugin {
         }
 
         private lazy val checkIfTriggeredSectionExists: Boolean = {
-          val confInArgs = interface.args
+          val confInArgs: Option[Path] = interface.args
             .collect { case Arg.Config(conf) => conf }
             .flatten
             .lastOption
@@ -672,7 +672,7 @@ object ScalafixPlugin extends AutoPlugin {
               Tracked.diffInputs(
                 streams.cacheDirectory / "targets-by-rule" / rule,
                 cachingStyle
-              )(targets) { changeReport: ChangeReport[File] =>
+              )(targets) { (changeReport: ChangeReport[File]) =>
                 doForStaleTargets(changeReport.modified -- changeReport.removed)
               }
 
@@ -696,7 +696,8 @@ object ScalafixPlugin extends AutoPlugin {
                   }
               }
 
-            val ruleTargetDiffs = interface.rulesThatWillRun
+            val ruleTargetDiffs = interface
+              .rulesThatWillRun()
               .map(rule => diffTargets(rule.name) _)
               .toList
             accumulateAndRunForStaleTargets(ruleTargetDiffs)