Give some love to the project

- Update Scala version
- Update sbt and sbt plugins
- Remove deprecated sbt syntax usages
- Update Scalafix and improve its configuration
- Install Scala Steward to help us maintain this project
- Fix Scalafix issues in code

Author: guizmaii

.github/workflows/scala-steward.yml

@@ -0,0 +1,16 @@
+name: Scala Steward
+
+# This workflow will launch everyday at 00:00
+on:
+  schedule:
+    - cron: '0 0 * * *'
+  workflow_dispatch: {}
+
+jobs:
+  scala-steward:
+    timeout-minutes: 30
+    runs-on: ubuntu-latest
+    name: Scala Steward
+    steps:
+      - name: Scala Steward
+        uses: scala-steward-org/scala-steward-action@v2.59.0

.scalafix.conf

@@ -1,7 +1,30 @@
 rules = [
-  OrganizeImports,
+  DisableSyntax
+  ExplicitResultTypes
+  LeakingImplicitClassVal
+  NoAutoTupling
+  NoValInForComprehension
+  ProcedureSyntax
+  RemoveUnused
+  OrganizeImports
 ]
 
+RemoveUnused {
+  imports = false // See https://github.com/scalacenter/scalafix/blob/v0.11.0/docs/rules/OrganizeImports.md#configuration
+}
+
+Disable {
+  ifSynthetic = [
+    "scala/Option.option2Iterable"
+    "scala/Predef.any2stringadd"
+  ]
+}
+
+DisableSyntax.noReturns = true
+DisableSyntax.noXml = true
+DisableSyntax.noFinalize = true
+DisableSyntax.noValPatterns = true
+
 ExplicitResultTypes.rewriteStructuralTypesToNamedSubclass = false
 
 OrganizeImports.groupedImports = Explode

build.sbt

@@ -1,4 +1,7 @@
-def scala212 = "2.12.12"
+def scala212 = "2.12.18"
+
+Global / onChangedBuildSource := ReloadOnSourceChanges
+
 inThisBuild(
   List(
     organization := "org.scalameta",
@@ -15,16 +18,14 @@ inThisBuild(
         )
       ),
     scalaVersion := scala212,
-    scalafixDependencies +=
-      "com.github.liancheng" %% "organize-imports" % "0.5.0",
     scalacOptions ++= List("-Ywarn-unused-import"),
     scalafixCaching := true,
     semanticdbEnabled := true
   )
 )
 
 crossScalaVersions := Nil
-skip.in(publish) := true
+publish / skip := true
 
 commands +=
   Command.command("fixAll") { s =>
@@ -42,7 +43,7 @@ lazy val plugin = project
   .settings(
     moduleName := "sbt-native-image",
     sbtPlugin := true,
-    sbtVersion.in(pluginCrossBuild) := "1.0.0",
+    pluginCrossBuild / sbtVersion := "1.0.0",
     crossScalaVersions := List(scala212),
     buildInfoPackage := "sbtnativeimage",
     buildInfoKeys := Seq[BuildInfoKey](version),
@@ -55,8 +56,8 @@ lazy val plugin = project
 lazy val example = project
   .in(file("example"))
   .settings(
-    skip.in(publish) := true,
-    mainClass.in(Compile) := Some("example.Hello"),
+    publish / skip := true,
+    Compile / mainClass := Some("example.Hello"),
     test := {
       val binary = nativeImage.value
       val output = scala.sys.process.Process(List(binary.toString)).!!.trim

plugin/src/main/scala/sbtnativeimage/NativeImagePlugin.scala

@@ -140,12 +140,10 @@ object NativeImagePlugin extends AutoPlugin {
 
   override lazy val projectSettings: Seq[Def.Setting[_]] = List(
     libraryDependencies += "org.scalameta" % "svm-subs" % "101.0.0",
-    target.in(NativeImage) := target.in(Compile).value / "native-image",
-    target.in(NativeImageTest) := target.in(Test).value / "native-image-test",
-    target.in(NativeImageInternal) :=
-      target.in(Compile).value / "native-image-internal",
-    target.in(NativeImageTestInternal) :=
-      target.in(Test).value / "native-image-test-internal",
+    NativeImage / target := (Compile / target).value / "native-image",
+    NativeImageTest / target := (Test / target).value / "native-image-test",
+    NativeImageInternal / target := (Compile / target).value / "native-image-internal",
+    NativeImageTestInternal / target := (Test / target).value / "native-image-test-internal",
     nativeImageReady := {
       val s = streams.value
 
@@ -163,15 +161,15 @@ object NativeImagePlugin extends AutoPlugin {
     nativeImageJvm := "graalvm-java11",
     nativeImageJvmIndex := "cs",
     nativeImageVersion := "20.2.0",
-    name.in(NativeImage) := name.value,
-    name.in(NativeImageTest) := name.in(Test).value,
-    mainClass.in(NativeImage) := mainClass.in(Compile).value,
-    mainClass.in(NativeImageTest) := mainClass.in(Test).value,
-    nativeImageOptions := List(),
+    NativeImage / name := name.value,
+    NativeImageTest / name := (Test / name).value,
+    NativeImage / mainClass := (Compile / mainClass).value,
+    NativeImageTest / mainClass := (Test / mainClass).value,
+    nativeImageOptions := List.empty,
     nativeImageTestOptions := nativeImageOptions.value,
-    nativeImageTestRunOptions := List(),
+    nativeImageTestRunOptions := List.empty,
     nativeImageCoursier := {
-      val dir = target.in(NativeImageInternal).value
+      val dir = (NativeImageInternal / target).value
       val out = copyResource("coursier", dir)
       if (Properties.isWin) {
         copyResource("coursier.bat", dir)
@@ -297,7 +295,7 @@ object NativeImagePlugin extends AutoPlugin {
           arguments.mkString(" ")
       Project
         .extract(newState)
-        .runInputTask(run in (tpr, Compile), input, newState)
+        .runInputTask(tpr / Compile / run, input, newState)
     },
     nativeImageTestRunAgent := {
       val _ = nativeImageTestCommand.value
@@ -313,11 +311,11 @@ object NativeImagePlugin extends AutoPlugin {
 
       val options = (javaOptions in (Test, run)).value ++ Seq(agentOption)
 
-      val __ = compile.in(Test).value
-      val main = mainClass.in(NativeImageTest).value
-      val cp = fullClasspath.in(Test).value.map(_.data)
-      val manifest = target.in(NativeImageTestInternal).value / "manifest.jar"
-      manifest.getParentFile().mkdirs()
+      val __ = (Test / compile).value
+      val main = (NativeImageTest / mainClass).value
+      val cp = (Test / fullClasspath).value.map(_.data)
+      val manifest = (NativeImageTestInternal / target).value / "manifest.jar"
+      manifest.getParentFile.mkdirs()
       createManifestJar(manifest, cp)
       val nativeClasspath = manifest.absolutePath
 
@@ -331,7 +329,7 @@ object NativeImagePlugin extends AutoPlugin {
           throw new MessageOnlyException(
             "no mainClass is specified for tests. " +
               "To fix this problem, update build.sbt to include the settings " +
-              "`mainClass.in(Test) := Some(\"com.MainTestClass\")`"
+              "`Test / mainClass := Some(\"com.MainTestClass\")`"
           )
         )
       command ++= nativeImageTestRunOptions.value
@@ -344,12 +342,12 @@ object NativeImagePlugin extends AutoPlugin {
       }
     },
     nativeImageOutput :=
-      target.in(NativeImage).value / name.in(NativeImage).value,
+      (NativeImage / target).value / (NativeImage / name).value,
     nativeImageTestOutput :=
-      target.in(NativeImageTest).value / name.in(NativeImageTest).value,
+      (NativeImageTest / target).value / (NativeImageTest / name).value,
     nativeImageCopy := {
       val binary = nativeImage.value
-      val out = fileParser(baseDirectory.in(ThisBuild).value).parsed
+      val out = fileParser((ThisBuild / baseDirectory).value).parsed
       Files.copy(
         binary.toPath(),
         out.toPath(),
@@ -384,17 +382,17 @@ object NativeImagePlugin extends AutoPlugin {
       }
     },
     nativeImage := {
-      val _ = compile.in(Compile).value
-      val main = mainClass.in(NativeImage).value
+      val _ = (Compile / compile).value
+      val main = (NativeImage / mainClass).value
       val binaryName = nativeImageOutput.value
-      val cp = fullClasspath.in(Compile).value.map(_.data)
+      val cp = (Compile / fullClasspath).value.map(_.data)
       // NOTE(olafur): we pass in a manifest jar instead of the full classpath
       // for two reasons:
       // * large classpaths quickly hit on the "argument list too large"
       //   error, especially on Windows.
       // * we print the full command to the console and the manifest jar makes
       //   it more readable and easier to copy-paste.
-      val manifest = target.in(NativeImageInternal).value / "manifest.jar"
+      val manifest = (NativeImageInternal / target).value / "manifest.jar"
       manifest.getParentFile().mkdirs()
       createManifestJar(manifest, cp)
       val nativeClasspath = manifest.absolutePath
@@ -410,14 +408,14 @@ object NativeImagePlugin extends AutoPlugin {
           throw new MessageOnlyException(
             "no mainClass is specified. " +
               "To fix this problem, update build.sbt to include the settings " +
-              "`mainClass.in(Compile) := Some(\"com.MainClass\")`"
+              "`Compile / mainClass := Some(\"com.MainClass\")`"
           )
         )
       command += binaryName.absolutePath
 
       // Start native-image linker.
       streams.value.log.info(command.mkString(" "))
-      val cwd = target.in(NativeImage).value
+      val cwd = (NativeImage / target).value
       cwd.mkdirs()
       val exit = Process(command, cwd = Some(cwd)).!
       if (exit != 0) {
@@ -431,17 +429,17 @@ object NativeImagePlugin extends AutoPlugin {
       binaryName
     },
     nativeImageTest := {
-      val _ = compile.in(Test).value
-      val main = mainClass.in(NativeImageTest).value
+      val _ = (Test / compile).value
+      val main = (NativeImageTest / mainClass).value
       val binaryName = nativeImageTestOutput.value
-      val cp = fullClasspath.in(Test).value.map(_.data)
+      val cp = (Test / fullClasspath).value.map(_.data)
       // NOTE(olafur): we pass in a manifest jar instead of the full classpath
       // for two reasons:
       // * large classpaths quickly hit on the "argument list too large"
       //   error, especially on Windows.
       // * we print the full command to the console and the manifest jar makes
       //   it more readable and easier to copy-paste.
-      val manifest = target.in(NativeImageTestInternal).value / "manifest.jar"
+      val manifest = (NativeImageTestInternal / target).value / "manifest.jar"
       manifest.getParentFile().mkdirs()
       createManifestJar(manifest, cp)
       val nativeClasspath = manifest.absolutePath
@@ -457,14 +455,14 @@ object NativeImagePlugin extends AutoPlugin {
           throw new MessageOnlyException(
             "no mainClass is specified for tests. " +
               "To fix this problem, update build.sbt to include the settings " +
-              "`mainClass.in(Test) := Some(\"com.MainTestClass\")`"
+              "`Test / mainClass := Some(\"com.MainTestClass\")`"
           )
         )
       command += binaryName.absolutePath
 
       // Start native-image linker.
       streams.value.log.info(command.mkString(" "))
-      val cwd = target.in(NativeImageTest).value
+      val cwd = (NativeImageTest / target).value
       cwd.mkdirs()
       val exit = Process(command, cwd = Some(cwd)).!
       if (exit != 0) {
@@ -519,8 +517,7 @@ object NativeImagePlugin extends AutoPlugin {
           //this happens if the dependency jar resides on a different drive then the manifest, i.e. C:\Coursier\Cache and D:\myapp\target
           //copy dependency next to manifest as fallback
           case _: IllegalArgumentException =>
-            import java.nio.file.Files
-            import java.nio.file.StandardCopyOption
+            import java.nio.file.{Files, StandardCopyOption}
             Files.copy(
               dependencyPath,
               manifestPath.resolve(path.getName),
@@ -546,15 +543,15 @@ object NativeImagePlugin extends AutoPlugin {
 
   private def alertUser(streams: std.TaskStreams[_], message: String): Unit = {
     streams.log.info(message)
-    if (isCI)
-      return
-    try {
-      if (Properties.isMac) {
-        Process(List("say", message)).!
+    if (!isCI) {
+      try {
+        if (Properties.isMac) {
+          Process(List("say", message)).!
+        }
+        // NOTE(olafur): feel free to add support for Linux/Windows.
+      } catch {
+        case NonFatal(_) =>
       }
-      // NOTE(olafur): feel free to add support for Linux/Windows.
-    } catch {
-      case NonFatal(_) =>
     }
   }
 }

project/build.properties

@@ -1 +1 @@
-sbt.version=1.4.4
+sbt.version=1.9.2

project/plugins.sbt

@@ -1,13 +1,13 @@
-addSbtPlugin("com.github.sbt" % "sbt-ci-release" % "1.5.11")
-addSbtPlugin("com.eed3si9n" % "sbt-buildinfo" % "0.10.0")
-addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.3.4")
-addSbtPlugin("ch.epfl.scala" % "sbt-scalafix" % "0.9.27")
+addSbtPlugin("com.github.sbt" % "sbt-ci-release" % "1.5.12")
+addSbtPlugin("com.eed3si9n" % "sbt-buildinfo" % "0.11.0")
+addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.5.0")
+addSbtPlugin("ch.epfl.scala" % "sbt-scalafix" % "0.11.0")
 
 libraryDependencies += "org.scala-sbt" %% "scripted-plugin" % sbtVersion.value
 
-unmanagedSourceDirectories.in(Compile) +=
-  baseDirectory.in(ThisBuild).value.getParentFile / "plugin" / "src" / "main" /
+Compile / unmanagedSourceDirectories +=
+  (ThisBuild / baseDirectory).value.getParentFile / "plugin" / "src" / "main" /
     "scala"
-unmanagedResourceDirectories.in(Compile) +=
-  baseDirectory.in(ThisBuild).value.getParentFile / "plugin" / "src" / "main" /
+Compile / unmanagedResourceDirectories +=
+  (ThisBuild / baseDirectory).value.getParentFile / "plugin" / "src" / "main" /
     "resources"