add packager

examples/metrics/build.sbt

@@ -1,58 +1,99 @@
 import sbt._
+import com.typesafe.sbt.packager.windows._
+import Pack._
+import Utils._
 import Dependencies._
 import scala.sys.process._
+
 resolvers += "jetbrain skija" at "https://packages.jetbrains.team/maven/p/skija/maven"
 
+// general
+name := "metrics"
+version := "0.0.0"
+ThisBuild / organization := "org.jetbrains.jwm"
+javaOptions ++= Seq(
+  "enablesystemassertions",
+  "-enableassertions",
+  "-Xcheck:jni",
+  "-Dfile.encoding=UTF-8",
+  "-release",
+  "16"
+)
+
+// package stuff
+maintainer := "john doe"
+packageSummary := "example jwm application"
+packageDescription := """example jwm application."""
+
+enablePlugins(JavaAppPackaging, WindowsPlugin)
+
+wixProductId := java.util.UUID.randomUUID().toString
+wixProductUpgradeId := java.util.UUID.randomUUID().toString
+
+ThisBuild / crossPaths := false
+ThisBuild / autoScalaLibrary := false
+
+Compile / run := (Compile / run).dependsOn(genIconIfNotExists).evaluated
+
 lazy val genIconIfNotExists = taskKey[Unit]("generate icon for title bar")
 
+lazy val packageApp = taskKey[Unit]("package application via jpackage")
+
+packageApp := {
+  system match {
+    case OS.Linux =>
+      Pack.packageLinuxAppCmd(
+        name.value,
+        organization.value,
+        version.value,
+        None,
+        false,
+        baseDirectory.value
+      )
+    case OS.Mac => ???
+    case OS.Windows =>
+      Def.task {
+        println("use windows/packageBin from sbt-native-packager instead.")
+        (Windows / packageBin).value
+      }.value
+  }
+  println(s"save package installer at ${baseDirectory.value}/target/${system.name}")
+}
+
 genIconIfNotExists := {
-  val macIcon = (Compile / resourceDirectory).value / "macos.icns" 
+  val macIcon = (Compile / resourceDirectory).value / "macos.icns"
   val winIcon = (Compile / resourceDirectory).value / "windows.ico"
-  System.getProperty("os.name").toLowerCase match {
-    case mac if mac.contains("mac") && !macIcon.exists() => {
+  system match {
+    case OS.Mac if !macIcon.exists() => {
       Process(
         Seq(
           "iconutil",
           "-c",
           "icns",
           "macos.iconset"
         ),
-        ( Compile / resourceDirectory).value
-      )!
+        (Compile / resourceDirectory).value
+      ) !
     }
-    case win if win.contains("win") && !winIcon.exists() => {
+    case OS.Windows if !winIcon.exists() => {
       Process(
         "convert" +: Seq(16, 24, 32, 48, 256)
           .map(dim => s"windows/icon_${dim}x${dim}.png") :+ "windows.ico",
-          (Compile / resourceDirectory).value
-      )!
+        (Compile / resourceDirectory).value
+      ) !
     }
     case _ => ()
   }
 }
 
-Compile / run := (Compile / run).dependsOn(genIconIfNotExists).evaluated
-
-ThisBuild / organization := "org.jetbrains.jwm"
-javaOptions ++= Seq(
-  "enablesystemassertions",
-  "-enableassertions",
-  "-Xcheck:jni",
-  "-Dfile.encoding=UTF-8",
-  "-release","16"
-)
-name := "metrics"
-version := "0.1.0-SNAPSHOT"
-
-ThisBuild / crossPaths := false
-ThisBuild / autoScalaLibrary := false
 lazy val metrics = project
   .in(file("."))
   .settings(
     libraryDependencies ++= Dependencies.deps,
     assembly / mainClass := Some("org.jetbrains.jwm.examples.Example"),
-    assembly / assemblyMergeStrategy  := {
-      case PathList(ps @ _*) if ps.last endsWith "module-info.class" => MergeStrategy.discard
+    assembly / assemblyMergeStrategy := {
+      case PathList(ps @ _*) if ps.last endsWith "module-info.class" =>
+        MergeStrategy.discard
       case other =>
         MergeStrategy.defaultMergeStrategy(other)
     }

examples/metrics/project/Pack.scala

@@ -0,0 +1,35 @@
+import sbt._
+import scala.sys.process._
+import sbt.Keys._
+import Utils._
+object Pack {
+  def packageLinuxAppCmd(
+      name: String,
+      organization: String,
+      version: String,
+      appIconPath: Option[String],
+      genShortcut: Boolean,
+      baseDir: File
+  ) = {
+    Process(
+      Seq(
+        "jpackage",
+        "--name",
+        name,
+        "--app-version",
+        version,
+        "--type",
+        "deb",
+        "-i",
+        "target",
+        "--main-class",
+        s"${organization}.example.Example",
+        // relative path from directory specified by -i option
+        "--main-jar",
+        s"${name}-assembly-${version}.jar"
+      ) ++ appIconPath.map(p => s"--icon $p").toSeq
+        ++ { if (genShortcut) Seq("--linux-shortcut") else Seq.empty },
+      baseDir
+    ).!
+  }
+}

examples/metrics/project/Utils.scala

@@ -0,0 +1,26 @@
+object Utils {
+
+  lazy val system = {
+    System.getProperty("os.name").toLowerCase match {
+      case win if win.contains("win")       => OS.Windows
+      case linux if linux.contains("linux") => OS.Linux
+      case mac if mac.contains("mac")       => OS.Mac
+    }
+  }
+}
+
+sealed trait OS {
+  def name: String
+}
+
+object OS {
+  object Mac extends OS {
+    val name = "macos"
+  }
+  object Linux extends OS {
+    val name = "linux"
+  }
+  object Windows extends OS {
+    val name = "windows"
+  }
+}

examples/metrics/project/plugins.sbt

@@ -1 +1,2 @@
 addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "1.1.0")
+addSbtPlugin("com.typesafe.sbt" % "sbt-native-packager" % "1.7.3")