Update to scala 3

build.sbt

@@ -47,19 +47,19 @@ lazy val compileOptions: Seq[Setting[_]] = Seq(
 
 lazy val packagerProjectSettings = Seq(
   name := "scala-packager",
-  scalaVersion := ScalaVersions.scala213,
+  scalaVersion := ScalaVersions.scala3,
   crossScalaVersions := ScalaVersions.all
 )
 
 lazy val imageResizerProjectSettings = Seq(
   name := "scala-packager-image-resizer",
-  scalaVersion := ScalaVersions.scala213,
+  scalaVersion := ScalaVersions.scala3,
   crossScalaVersions := ScalaVersions.all
 )
 
 lazy val cliProjectSettings = Seq(
   name := "scala-packager-cli",
-  scalaVersion := ScalaVersions.scala213,
+  scalaVersion := ScalaVersions.scala3,
   crossScalaVersions := ScalaVersions.all,
   libraryDependencies ++= Seq(Deps.caseApp)
 )

modules/cli/src/main/scala/packager/cli/commands/BuildOptions.scala

@@ -1,7 +1,6 @@
 package packager.cli.commands
 
-import caseapp.{Group, HelpMessage, Name, Parser, Recurse}
-import caseapp.core.help.Help
+import caseapp._
 import packager.cli.commands.BuildOptions.PackagerType
 import packager.config._
 
@@ -109,6 +108,6 @@ object BuildOptions {
     case object Rpm extends NativePackagerType
   }
 
-  implicit val parser: Parser[BuildOptions] = Parser[BuildOptions]
-  implicit val help: Help[BuildOptions] = Help[BuildOptions]
+  implicit lazy val parser: Parser[BuildOptions] = Parser.derive
+  implicit lazy val help: Help[BuildOptions] = Help.derive
 }

modules/cli/src/main/scala/packager/cli/commands/DebianOptions.scala

@@ -1,6 +1,7 @@
 package packager.cli.commands
 
 import caseapp.core.help.Help
+import caseapp.core.parser.Parser
 import caseapp.{Group, HelpMessage, Parser, ValueDescription}
 import packager.cli.commands.SettingsHelpers.Mandatory
 import packager.config.{DebianSettings, SharedSettings}
@@ -55,7 +56,7 @@ final case class DebianOptions(
 
 case object DebianOptions {
 
-  implicit val parser: Parser[DebianOptions] = Parser[DebianOptions]
-  implicit val help: Help[DebianOptions] = Help[DebianOptions]
+  implicit lazy val parser: Parser[DebianOptions] = Parser.derive
+  implicit lazy val help: Help[DebianOptions] = Help.derive
 
 }

modules/cli/src/main/scala/packager/cli/commands/DockerOptions.scala

@@ -59,7 +59,7 @@ final case class DockerOptions(
 
 case object DockerOptions {
 
-  implicit val parser: Parser[DockerOptions] = Parser[DockerOptions]
-  implicit val help: Help[DockerOptions] = Help[DockerOptions]
+  implicit lazy val parser: Parser[DockerOptions] = Parser.derive
+  implicit lazy val help: Help[DockerOptions] = Help.derive
 
 }

modules/cli/src/main/scala/packager/cli/commands/MacOSOptions.scala

@@ -23,7 +23,7 @@ final case class MacOSOptions(
 
 case object MacOSOptions {
 
-  implicit val parser: Parser[MacOSOptions] = Parser[MacOSOptions]
-  implicit val help: Help[MacOSOptions] = Help[MacOSOptions]
+  implicit lazy val parser: Parser[MacOSOptions] = Parser.derive
+  implicit lazy val help: Help[MacOSOptions] = Help.derive
 
 }

modules/cli/src/main/scala/packager/cli/commands/RedHatOptions.scala

@@ -41,7 +41,7 @@ final case class RedHatOptions(
 
 case object RedHatOptions {
 
-  implicit val parser: Parser[RedHatOptions] = Parser[RedHatOptions]
-  implicit val help: Help[RedHatOptions] = Help[RedHatOptions]
+  implicit lazy val parser: Parser[RedHatOptions] = Parser.derive
+  implicit lazy val help: Help[RedHatOptions] = Help.derive
 
 }

modules/cli/src/main/scala/packager/cli/commands/SharedOptions.scala

@@ -33,6 +33,6 @@ final case class SharedOptions(
 )
 case object SharedOptions {
 
-  implicit val parser: Parser[SharedOptions] = Parser[SharedOptions]
-  implicit val help: Help[SharedOptions] = Help[SharedOptions]
+  implicit lazy val parser: Parser[SharedOptions] = Parser.derive
+  implicit lazy val help: Help[SharedOptions] = Help.derive
 }

modules/cli/src/main/scala/packager/cli/commands/WindowsOptions.scala

@@ -63,6 +63,6 @@ final case class WindowsOptions(
 
 case object WindowsOptions {
 
-  implicit val parser: Parser[WindowsOptions] = Parser[WindowsOptions]
-  implicit val help: Help[WindowsOptions] = Help[WindowsOptions]
+  implicit lazy val parser: Parser[WindowsOptions] = Parser.derive
+  implicit lazy val help: Help[WindowsOptions] = Help.derive
 }

project/ScalaVersions.scala

@@ -1,5 +1,6 @@
 object ScalaVersions {
   def scala212 = "2.12.18"
   def scala213 = "2.13.11"
-  def all = Seq(scala213, scala212)
+  def scala3 = "3.3.1"
+  def all = Seq(scala3, scala213, scala212)
 }